NORWEST ASSET SECURITIES CORP MOR PAS THR CERT SERS 1999-18
8-K, 1999-11-03
ASSET-BACKED SECURITIES
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                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

Date of Report:  June 29, 1999
(Date of earliest event reported)

Commission File No.  333-65481

                      Norwest Asset Securities Corporation
- ------------------------------------------------------------------------------


                  Delaware                               52-1972128
          (State of Incorporation)             (I.R.S. Employer Identification
                                                             No.)
- ---------------------------------------------

7485 New Horizon Way, Frederick, Maryland                   21703
   Address of principal executive offices                (Zip Code)
- ---------------------------------------------



                                (301) 846-8881
- ------------------------------------------------------------------------------
              Registrant's Telephone Number, including area code


- ------------------------------------------------------------------------------
  (Former name, former address and former fiscal year, if changed since last
                                   report)



<PAGE>




ITEM 5.     Other Events

On June 29, 1999, Norwest Asset Securities  Corporation,  a Delaware corporation
(the "Registrant"),  sold Mortgage  Pass-Through  Certificates,  Series 1999-18,
Class A-1,  Class A-2,  Class A-3,  Class A-4,  Class A-5, Class A-6, Class A-7,
Class A-8,  Class A-9, Class A-10,  Class A-11,  Class A-12,  Class A-13,  Class
A-14,  Class A-15,  Class A-16,  Class A-17, Class A-18, Class A-19, Class A-20,
Class A-21,  Class A-22,  Class A-R, Class A-LR,  Class B-1, Class B-2 and Class
B-3 (the "Offered Certificates"), having an aggregate original principal balance
of $842,790,200.  The Offered Certificates were issued pursuant to a Pooling and
Servicing  Agreement,  dated as of June 29, 1999, among the Registrant,  Norwest
Bank Minnesota,  National Association, as master servicer (the "Master Servicer"
or "Norwest  Bank"),  United States Trust  Company of New York, as trustee,  and
First Union National Bank, as trust  administrator (the "Agreement"),  a copy of
which is filed as an exhibit hereto. Mortgage Pass-Through Certificates,  Series
1999-18, Class A-PO Certificates,  having an aggregate initial principal balance
of $1,328,709.03 and Class B-4, Class B-5 and Class B-6 Certificates,  having an
aggregate  initial  principal  balance of  $5,950,848.07  (the "Private  Class B
Certificates"  and,  together with the Class A-PO  Certificates  and the Offered
Certificates, the "Certificates"), were also issued pursuant to the Agreement.

As of the date of  initial  issuance,  the  Offered  Certificates  evidenced  an
approximate  99.14%  undivided  interest in a trust fund (the  "Trust  Estate"),
consisting principally of a pool of fixed interest rate,  conventional,  monthly
pay,  fully-amortizing,  one-to  four-family  residential  first mortgage loans,
other than the Fixed  Retained  Yield (as defined in the  Agreement),  which may
include loans secured by shares issued by cooperative housing corporations.  The
remaining  undivided  interests in the Trust  Estate are  evidenced by the Class
A-PO and Private  Class B  Certificates.  Distributions  on the Private  Class B
Certificates are  subordinated to distributions on the Offered  Certificates and
the Class A-PO Certificates.

Interest on the Offered  Certificates  will be distributed on each  Distribution
Date (as defined in the Agreement).  Monthly  distributions  in reduction of the
principal  balance of the Offered  Certificates will be allocated to the Offered
Certificates  in  accordance  with the  priorities  set forth in the  Agreement.
Distributions  of  interest  and  in  reduction  of  principal  balance  on  any
Distribution Date will be made to the extent that the Pool  Distribution  Amount
is sufficient therefor.

An  election  will be made to treat the Trust  Estate as two REMICs for  federal
income  tax  purposes   (the   "Upper-Tier   REMIC"  and   "Lower-Tier   REMIC,"
respectively).  The Class A-1, Class A-2, Class A-3, Class A-4, Class A-5, Class
A-6, Class A-7, Class A-9, Class A-10, Class A-11, Class A-12, Class A-13, Class
A-14,  Class A-15,  Class A-16,  Class A-17, Class A-18, Class A-19, Class A-20,
Class A-21,  Class A-22, Class A-PO, Class B-1, Class B-2, Class B-3, Class B-4,
Class  B-5 and  Class  B-6  Certificates  and each  component  of the  Class A-8
Certificates will be treated as "regular  interests" in the Upper-Tier REMIC and
the Class A-R and Class  A-LR  Certificates  will be  treated  as the  "residual
interests" in the Upper-Tier REMIC and Lower-Tier REMIC, respectively.



<PAGE>




ITEM 7.     Financial Statements and Exhibits
(c)   Exhibits

Item 601(a)
of Regulation S-K
Exhibit No.                           Description

(EX-4)                                Pooling and  Servicing  Agreement,  dated
                                      as of June 29, 1999,  among Norwest Asset
                                      Securities   Corporation,   Norwest  Bank
                                      Minnesota,  National Association,  United
                                      States  Trust  Company  of New  York,  as
                                      trustee,  and First Union  National Bank,
                                      as trust administrator.





<PAGE>




Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.
                                    NORWEST ASSET SECURITIES CORPORATION

June 29, 1999                        /s/ Alan S. McKenney
                                   ---------------------------------------
                                    Alan S. McKenney
                                    Vice President

<PAGE>




                                INDEX TO EXHIBITS


                                                            Paper (P) or
Exhibit No.                 Description                    Electronic (E)
- -----------                 -----------                    --------------

  (EX-4)                    Pooling and Servicing              E
                            Agreement, dated as of June
                            29, 1999 among Norwest Asset
                            Securities Corporation,
                            Norwest Bank Minnesota,
                            National Association, United
                            States Trust Company of New
                            York, as trustee and First
                            Union National Bank, as trust
                            administrator.


<PAGE>

                                                                  EXECUTION COPY

      -------------------------------------------------------------------




                      NORWEST ASSET SECURITIES CORPORATION

                                    (Seller)

                                       and

                  NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION

                                (Master Servicer)

                     UNITED STATES TRUST COMPANY OF NEW YORK

                                    (Trustee)

                                       and

                            FIRST UNION NATIONAL BANK

                              (Trust Administrator)






                         POOLING AND SERVICING AGREEMENT

                            Dated as of June 29, 1999

                                 $850,069,757.10

                       Mortgage Pass-Through Certificates
                                 Series 1999-18




        -----------------------------------------------------------------





<PAGE>





                                TABLE OF CONTENTS
                                                                            Page


                                    ARTICLE I

                                   DEFINITIONS

Section 1.01   Definitions..................................................
Section 1.02   Acts of Holders..............................................
Section 1.03   Effect of Headings and Table of Contents.....................
Section 1.04   Benefits of Agreement........................................


                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                      ORIGINAL ISSUANCE OF THE CERTIFICATES

Section 2.01   Conveyance of Mortgage Loans.................................
Section 2.02   Acceptance by Trust Administrator............................
Section 2.03   Representations and Warranties of the Master Servicer
                  and the Seller............................................
Section 2.04   Execution and Delivery of Certificates.......................
Section 2.05   Designation of Certificates; Designation of Startup Day
                  and Latest Possible Maturity Date.........................


                                   ARTICLE III

                  ADMINISTRATION OF THE TRUST ESTATE: SERVICING
                              OF THE MORTGAGE LOANS

Section 3.01   Certificate Account..........................................
Section 3.02   Permitted Withdrawals from the Certificate Account...........
Section 3.03   Advances by Master Servicer and Trust Administrator..........
Section 3.04   Trust Administrator to Cooperate; Release of Owner
                  Mortgage Loan Files.......................................
Section 3.05   Reports to the Trustee and Trust Administrator; Annual
                  Compliance Statements.....................................
Section 3.06   Title, Management and Disposition of Any REO Mortgage
                  Loan......................................................
Section 3.07   Amendments to Servicing Agreements, Modification of
                  Standard Provisions.......................................
Section 3.08   Oversight of Servicing.......................................
Section 3.09   Termination and Substitution of Servicing Agreements.........
Section 3.10   Application of Net Liquidation Proceeds......................
Section 3.11   Act Reports..................................................


                                   ARTICLE IV

                    DISTRIBUTIONS IN RESPECT OF CERTIFICATES;
                         PAYMENTS TO CERTIFICATEHOLDERS;
                             STATEMENTS AND REPORTS

Section 4.01   Distributions................................................
Section 4.02   Allocation of Realized Losses................................
Section 4.03   Paying Agent.................................................
Section 4.04   Statements to Certificateholders; Report to the Trust
                  Administrator, Financial Security and the Seller..........
Section 4.05   Reports to Mortgagors and the Internal Revenue Service.......
Section 4.06   Reserve Fund.................................................
Section 4.07   Distributions in Reduction of the Class A-12
                  Certificates..............................................
Section 4.08   Policy Matters...............................................
Section 4.09   Calculation of Amounts; Binding Effect of
                  Interpretations and Actions of Master Servicer............
Section 4.10   Determination of LIBOR.......................................


                                    ARTICLE V

                                THE CERTIFICATES

Section 5.01   The Certificates.............................................
Section 5.02   Registration of Certificates.................................
Section 5.03   Mutilated, Destroyed, Lost or Stolen Certificates............
Section 5.04   Persons Deemed Owners........................................
Section 5.05   Access to List of Certificateholders' Names and
                  Addresses.................................................
Section 5.06   Maintenance of Office or Agency..............................
Section 5.07   Definitive Certificates......................................
Section 5.08   Notices to Clearing Agency...................................


                                   ARTICLE VI

                       THE SELLER AND THE MASTER SERVICER

Section 6.01   Liability of the Seller and the Master Servicer..............
Section 6.02   Merger or Consolidation of the Seller or the Master
                  Servicer..................................................
Section 6.03   Limitation on Liability of the Seller, the Master
                  Servicer and Others.......................................
Section 6.04   Resignation of the Master Servicer...........................
Section 6.05   Compensation to the Master Servicer..........................
Section 6.06   Assignment or Delegation of Duties by Master Servicer........
Section 6.07   Indemnification of Trustee, Trust Administrator and
                  Seller by Master Servicer.................................
Section 6.08   Master Servicer Covenants Concerning Year 2000
                  Compliance................................................


                                   ARTICLE VII

                                     DEFAULT

Section 7.01   Events of Default............................................
Section 7.02   Other Remedies of Trustee....................................
Section 7.03   Directions by Certificateholders and Duties of Trustee
                  During Event of Default...................................
Section 7.04   Action upon Certain Failures of the Master Servicer and
                  upon Event of Default.....................................
Section 7.05   Trust Administrator to Act; Appointment of Successor.........
Section 7.06   Notification to Certificateholders...........................


                                  ARTICLE VIII

               CONCERNING THE TRUSTEE AND THE TRUST ADMINISTRATOR

Section 8.01   Duties of Trustee and the Trust Administrator................
Section 8.02   Certain Matters Affecting the Trustee and the Trust
                  Administrator.............................................
Section 8.03   Neither Trustee nor Trust Administrator Required to Make
                  Investigation.............................................
Section 8.04   Neither Trustee nor Trust Administrator Liable for
                  Certificates or Mortgage Loans............................
Section 8.05   Trustee and Trust Administrator May Own Certificates.........
Section 8.06   The Master Servicer to Pay Fees and Expenses.................
Section 8.07   Eligibility Requirements.....................................
Section 8.08   Resignation and Removal......................................
Section 8.09   Successor....................................................
Section 8.10   Merger or Consolidation......................................
Section 8.11   Authenticating Agent.........................................
Section 8.12   Separate Trustees and Co-Trustees............................
Section 8.13   Appointment of Custodians....................................
Section 8.14   Tax Matters; Compliance with REMIC Provisions................
Section 8.15   Monthly Advances.............................................
Section 8.16   Trustee Covenants Concerning Year 2000 Compliance............
Section 8.17   Trust Administrator Covenants Concerning Year 2000
                  Compliance................................................


                                   ARTICLE IX

                                   TERMINATION

Section 9.01   Termination upon Purchase by the Seller or Liquidation
                  of All Mortgage Loans.....................................
Section 9.02   Additional Termination Requirements..........................


                                    ARTICLE X

                            MISCELLANEOUS PROVISIONS

Section 10.01  Amendment....................................................
Section 10.02  Recordation of Agreement.....................................
Section 10.03  Limitation on Rights of Certificateholders...................
Section 10.04  Governing Law; Jurisdiction..................................
Section 10.05  Notices......................................................
Section 10.06  Severability of Provisions...................................
Section 10.07  Special Notices to Rating Agencies and Financial
                  Security..................................................
Section 10.08  Covenant of Seller...........................................
Section 10.09  Recharacterization...........................................


                                   ARTICLE XI

                             TERMS FOR CERTIFICATES

Section 11.01  Class A Fixed Pass-Through Rate..............................
Section 11.02  Cut-Off Date.................................................
Section 11.03  Cut-Off Date Aggregate Principal Balance.....................
Section 11.04  Original Class A Percentage..................................
Section 11.05  Original Principal Balances of the Classes of Class A
                  Certificates and Components...............................
Section 11.05(a) Original Class A-21 Notional Amount and Original
                  Class A-8 IO Notional Amounts.............................
Section 11.06  Original Class A Non-PO Principal Balance....................
Section 11.07  Original Subordinated Percentage.............................
Section 11.08  Original Class B-1 Percentage................................
Section 11.09  Original Class B-2 Percentage................................
Section 11.10  Original Class B-3 Percentage................................
Section 11.11  Original Class B-4 Percentage................................
Section 11.12  Original Class B-5 Percentage................................
Section 11.13  Original Class B-6 Percentage................................
Section 11.14  Original Class B Principal Balance...........................
Section 11.15  Original Principal Balances of the Classes of Class B
                  Certificates..............................................
Section 11.16  Original Class B-1 Fractional Interest.......................
Section 11.17  Original Class B-2 Fractional Interest.......................
Section 11.18  Original Class B-3 Fractional Interest.......................
Section 11.19  Original Class B-4 Fractional Interest.......................
Section 11.20  Original Class B-5 Fractional Interest.......................
Section 11.21  Closing Date.................................................
Section 11.22  Right to Purchase............................................
Section 11.23  Wire Transfer Eligibility....................................
Section 11.24  Single Certificate...........................................
Section 11.25  Servicing Fee Rate...........................................
Section 11.26  Master Servicing Fee Rate....................................
Section 11.27  Financial Security Contact Person............................


                                    EXHIBITS

EXHIBIT A-1    -    Form of Face of Class A-1 Certificate
EXHIBIT A-2    -    Form of Face of Class A-2 Certificate
EXHIBIT A-3    -    Form of Face of Class A-3 Certificate
EXHIBIT A-4    -    Form of Face of Class A-4 Certificate
EXHIBIT A-5    -    Form of Face of Class A-5 Certificate
EXHIBIT A-6    -    Form of Face of Class A-6 Certificate
EXHIBIT A-7    -    Form of Face of Class A-7 Certificate
EXHIBIT A-8    -    Form of Face of Class A-8 Certificate
EXHIBIT A-9    -    Form of Face of Class A-9 Certificate
EXHIBIT A-10   -    Form of Face of Class A-10 Certificate
EXHIBIT A-11   -    Form of Face of Class A-11 Certificate
EXHIBIT A-12   -    Form of Face of Class A-12 Certificate
EXHIBIT A-13   -    Form of Face of Class A-13 Certificate
EXHIBIT A-14   -    Form of Face of Class A-14 Certificate
EXHIBIT A-15   -    Form of Face of Class A-15 Certificate
EXHIBIT A-16   -    Form of Face of Class A-16 Certificate
EXHIBIT A-17   -    Form of Face of Class A-17 Certificate
EXHIBIT A-18   -    Form of Face of Class A-18 Certificate
EXHIBIT A-19   -    Form of Face of Class A-19 Certificate
EXHIBIT A-20   -    Form of Face of Class A-20 Certificate
EXHIBIT A-21   -    Form of Face of Class A-21 Certificate
EXHIBIT A-22   -    Form of Face of Class A-22 Certificate
EXHIBIT A-PO   -    Form of Face of Class A-PO Certificate
EXHIBIT A-R    -    Form of Face of Class A-R Certificate
EXHIBIT A-LR   -    Form of Face of Class A-LR Certificate
EXHIBIT B-1    -    Form of Face of Class B-1 Certificate
EXHIBIT B-2    -    Form of Face of Class B-2 Certificate
EXHIBIT B-3    -    Form of Face of Class B-3 Certificate
EXHIBIT B-4    -    Form of Face of Class B-4 Certificate
EXHIBIT B-5    -    Form of Face of Class B-5 Certificate
EXHIBIT B-6    -    Form of Face of Class B-6 Certificate
EXHIBIT C      -    Form of Reverse of Series 1999-18 Certificates
EXHIBIT D      -    Reserved
EXHIBIT E      -    Custodial Agreement
EXHIBIT F-1    -    Schedule of Mortgage Loans  Serviced by Norwest  Mortgage in
                    locations other than Frederick, Maryland
EXHIBIT F-2    -    Schedule of Mortgage Loans Serviced by Norwest Mortgage from
                    Frederick, Maryland
EXHIBIT F-3    -    Schedule  of  Mortgage  Loans  Serviced  by Other  Servicers
                    EXHIBIT G - Request for Release
EXHIBIT H      -    Affidavit  Pursuant to Section  860E(e)(4)  of the  Internal
                    Revenue  Code  of  1986,  as  amended,   and  for  Non-ERISA
                    Investors
EXHIBIT I      -    Letter from Transferor of Residual Certificates
EXHIBIT J      -    Transferee's   Letter   (Class   [A-PO][B-4]   [B-5]   [B-6]
                    Certificates)
EXHIBIT K      -    Transferee's  Letter  (Class  [A-9] [A-22] [B-1] [B-2] [B-3]
                    Certificates)
EXHIBIT L      -    Servicing Agreements
EXHIBIT M      -    Form of Special Servicing Agreement
EXHIBIT N      -    The Policy





<PAGE>





            This  Pooling  and  Servicing  Agreement,  dated as of June 29, 1999
executed  by NORWEST  ASSET  SECURITIES  CORPORATION,  as Seller,  NORWEST  BANK
MINNESOTA, NATIONAL ASSOCIATION, as Master Servicer, UNITED STATES TRUST COMPANY
OF NEW YORK, as Trustee and FIRST UNION NATIONAL BANK, as Trust Administrator.

                                WITNESSETH THAT:

            In  consideration of the mutual  agreements  herein  contained,  the
Seller, the Master Servicer,  the Trustee and the Trust  Administrator  agree as
follows:


                                    ARTICLE I

                                   DEFINITIONS

            Section 1.01      Definitions.

            Whenever used herein,  the following  words and phrases,  unless the
context otherwise requires, shall have the meanings specified in this Article.

            Accepted  Master  Servicing  Practices:  Accepted  Master  Servicing
Practices shall consist of the customary and usual master servicing practices of
prudent master servicing  institutions  which service mortgage loans of the same
type as the Mortgage Loans in the  jurisdictions in which the related  Mortgaged
Properties are located,  regardless of the date upon which the related  Mortgage
Loans were originated.

            Accretion Termination Date: (a) For the Class A-5 Certificates,  the
earlier to occur of (i) the Distribution Date following the Distribution Date on
which the Principal  Balances of the Class A-4 and Class A-8  Certificates  have
been reduced to zero or (ii) the Cross-Over  Date; (b) for the Class A-8 Accrual
Component,  the  earlier to occur of (i) the  Distribution  Date  following  the
Distribution  Date on which the Principal  Balance of the Class A-4 Certificates
has been  reduced to zero or (ii) the  Cross-Over  Date;  (c) for the Class A-11
Certificates,  the earlier to occur of (i) the  Distribution  Date following the
Distribution  Date on which the Principal Balance of the Class A-10 Certificates
has been reduced to zero or (ii) the Cross-Over Date; and (d) for the Class A-19
Certificates,  the earlier to occur of (i) the  Distribution  Date following the
Distribution  Date on which the Principal Balance of the Class A-18 Certificates
has been reduced to zero or (ii) the Cross-Over Date.

            Accrual  Certificates:  The Class  A-5,  Class  A-11 and Class  A-19
Certificates.

            Accrual Component:  The Class A-8 Accrual Component.

            Accrual  Distribution  Amount:  As to any Distribution Date and each
Class of Accrual  Certificates and the Accrual Component prior to the applicable
Accretion  Termination  Date,  an amount with respect to such Class or Component
equal to the sum of (i) the Class A Interest Percentage of such Class of Accrual
Certificates or Accrual  Component of the Current Class A Interest  Distribution
Amount  and (ii) the Class A  Interest  Shortfall  Percentage  of such  Class of
Accrual  Certificates or Accrual Component of the amount  distributed in respect
of the Classes of Class A Certificates  pursuant to Paragraph  second of Section
4.01(a)(i) on such  Distribution  Date. As to any Distribution  Date on or after
the applicable Accretion Termination Date for such Class or Component, zero.

            Adjusted Pool Amount:  With respect to any  Distribution  Date,  the
Cut-Off Date Aggregate  Principal Balance of the Mortgage Loans minus the sum of
(i) all  amounts in respect of  principal  received  in respect of the  Mortgage
Loans  (including,  without  limitation,  amounts received as Monthly  Payments,
Periodic Advances,  Unscheduled  Principal  Receipts and Substitution  Principal
Amounts) and  distributed to Holders of the  Certificates  on such  Distribution
Date and all prior  Distribution  Dates and (ii) the  principal  portion  of all
Realized  Losses (other than Debt Service  Reductions)  incurred on the Mortgage
Loans  from  the  Cut-Off  Date  through  the end of the  month  preceding  such
Distribution Date.

            Adjusted Pool Amount (PO Portion):  With respect to any Distribution
Date,  the sum of the  amounts,  calculated  as  follows,  with  respect  to all
Outstanding  Mortgage  Loans:  the product of (i) the PO Fraction  for each such
Mortgage Loan and (ii) the remainder of (A) the Cut-Off Date  Principal  Balance
of such  Mortgage  Loan  minus  (B) the sum of (x) all  amounts  in  respect  of
principal  received  in  respect  of  such  Mortgage  Loan  (including,  without
limitation, amounts received as Monthly Payments, Periodic Advances, Unscheduled
Principal  Receipts  and  Substitution  Principal  Amounts) and  distributed  to
Holders of the Certificates on such Distribution Date and all prior Distribution
Dates and (y) the  principal  portion of any  Realized  Loss  (other than a Debt
Service Reduction)  incurred on such Mortgage Loan from the Cut-Off Date through
the end of the month preceding such Distribution Date.

            Adjusted  Principal  Balance:  As to any  Distribution  Date and any
Class of Class B Certificates, the greater of (A) zero and (B) (i) the Principal
Balance  of such Class with  respect  to such  Distribution  Date minus (ii) the
Adjustment Amount for such Distribution Date less the Principal Balances for any
Classes of Class B Certificates with higher numerical designations.

            Adjustment Amount: For any Distribution Date, the difference between
(A) the sum of the Class A Principal Balance and Class B Principal Balance as of
the  related  Determination  Date and (B) the sum of (i) the sum of the  Class A
Principal  Balance and Class B Principal  Balance as of the  Determination  Date
succeeding such Distribution  Date, (ii) the principal portion of Excess Special
Hazard Losses, Excess Fraud Losses and Excess Bankruptcy Losses allocated to the
Certificates  with  respect to such  Distribution  Date and (iii) the  aggregate
amount  that  would  have  been  distributed  to all  Classes  as  principal  in
accordance with Section 4.01(a) for such Distribution Date without regard to the
provisos in the  definitions of Class B-1 Optimal  Principal  Amount,  Class B-2
Optimal Principal Amount,  Class B-3 Optimal Principal Amount, Class B-4 Optimal
Principal  Amount,  Class B-5  Optimal  Principal  Amount and Class B-6  Optimal
Principal Amount.

            Aggregate Class A Distribution  Amount: As to any Distribution Date,
the  aggregate  amount  distributable  to the  Classes  of Class A  Certificates
pursuant to Paragraphs first,  second, third and fourth of Section 4.01(a)(i) on
such Distribution Date.

            Aggregate Class A Unpaid Interest Shortfall:  As to any Distribution
Date, an amount equal to the sum of the Class A Unpaid  Interest  Shortfalls for
all the Classes of Class A Certificates  (other than the Class A-8 Certificates)
and the Class A-8 Components.

            Aggregate   Current   Bankruptcy   Losses:   With   respect  to  any
Distribution  Date,  the sum of all  Bankruptcy  Losses  incurred  on any of the
Mortgage Loans in the month preceding the month of such Distribution Date.

            Aggregate  Current  Fraud Losses:  With respect to any  Distribution
Date,  the sum of all Fraud Losses  incurred on any of the Mortgage Loans in the
month preceding the month of such Distribution Date.

            Aggregate  Current  Special  Hazard  Losses:  With  respect  to  any
Distribution  Date, the sum of all Special Hazard Losses  incurred on any of the
Mortgage Loans in the month preceding the month of such Distribution Date.

            Aggregate  Foreclosure  Profits:  As to any  Distribution  Date, the
aggregate  amount of  Foreclosure  Profits  with  respect to all of the Mortgage
Loans.

            Agreement:  This Pooling and Servicing  Agreement and all amendments
and supplements hereto.

            Applicable Unscheduled Principal Receipt Period: With respect to the
Mortgage Loans serviced by each Servicer and each of Full Unscheduled  Principal
Receipts and Partial Unscheduled  Principal Receipts,  the Unscheduled Principal
Receipt Period  specified on Schedule I hereto,  as amended from time to time by
the Master Servicer pursuant to Section 10.01(b)
hereof.

            Authenticating  Agent:  Any  authenticating  agent  appointed by the
Trust  Administrator  pursuant  to Section  8.11.  There shall  initially  be no
Authenticating Agent for the Certificates.

            Available Master Servicer Compensation: As to any Distribution Date,
the sum of (a) the Master Servicing Fee for such Distribution Date, (b) interest
earned  through the business day preceding the applicable  Distribution  Date on
any  Prepayments  in Full remitted to the Master  Servicer and (c) the aggregate
amount of Month End Interest  remitted by the  Servicers to the Master  Servicer
pursuant to the related Servicing Agreements.

            Bank United  Mortgage  Loan Sale  Agreement:  The mortgage loan sale
agreement  dated as of September  17, 1998 between Bank United,  as seller,  and
Norwest Funding, Inc., as purchaser.

            Bankruptcy Code: The Bankruptcy Code of 1978, as amended.

            Bankruptcy  Loss:  With  respect to any  Mortgage  Loan, a Deficient
Valuation or Debt Service Reduction;  provided,  however, that a Bankruptcy Loss
shall  not be  deemed a  Bankruptcy  Loss  hereunder  so long as the  applicable
Servicer has notified the Master Servicer and the Trust Administrator in writing
that  such  Servicer  is  diligently  pursuing  any  remedies  that may exist in
connection  with the  representations  and warranties made regarding the related
Mortgage  Loan and either (A) the related  Mortgage  Loan is not in default with
regard to payments due  thereunder or (B)  delinquent  payments of principal and
interest  under the related  Mortgage  Loan and any  premiums on any  applicable
primary hazard  insurance  policy and any related escrow  payments in respect of
such  Mortgage  Loan are  being  advanced  on a current  basis by such  Servicer
without giving effect to any Debt Service Reduction.

            Bankruptcy  Loss Amount:  As of any  Distribution  Date prior to the
first  anniversary of the Cut-Off Date,  the  Bankruptcy  Loss Amount will equal
$231,877.38  minus the aggregate amount of Bankruptcy Losses allocated solely to
the Class B Certificates  in accordance  with Section  4.02(a) since the Cut-Off
Date.  As of any  Distribution  Date on or after  the first  anniversary  of the
Cut-Off  Date,  an amount  equal to (1) the  lesser of (a) the  Bankruptcy  Loss
Amount  calculated  as of the close of business on the Business Day  immediately
preceding the most recent  anniversary  of the Cut-Off Date  coinciding  with or
preceding  such  Distribution  Date (the  "Relevant  Anniversary")  and (b) such
lesser amount which,  as determined on the Relevant  Anniversary  will not cause
any rated  Certificates  to be placed on credit  review  status  (other than for
possible  upgrading)  (or, in the case of the Class A-12  Certificates,  without
giving effect to the guaranty  provided by Financial  Security) by either Rating
Agency minus (2) the aggregate  amount of Bankruptcy  Losses allocated solely to
the Class B Certificates  in accordance  with Section 4.02(a) since the Relevant
Anniversary.  On and after the Cross-Over  Date the Bankruptcy Loss Amount shall
be zero.

            Beneficial  Owner:  With  respect to a Book-Entry  Certificate,  the
Person who is the beneficial owner of such Book-Entry Certificate,  as reflected
on the books of the Clearing Agency, or on the books of a Person  maintaining an
account with such Clearing Agency  (directly or as an indirect  participant,  in
accordance with the rules of such Clearing Agency), as the case may be.

            Book-Entry Certificate: Any one of the Class A-1 Certificates, Class
A-2  Certificates,  Class A-3 Certificates,  Class A-4  Certificates,  Class A-5
Certificates,  Class A-6  Certificates,  Class  A-10  Certificates,  Class  A-11
Certificates,  Class  A-12  Certificates,  Class A-14  Certificates,  Class A-16
Certificates,  Class A-17  Certificates,  Class A-18 Certificates and Class A-19
Certificates  beneficial ownership and transfers of which shall be evidenced by,
and made  through,  book entries by the Clearing  Agency as described in Section
5.01(b).

            Business Day: Any day other than (i) a Saturday or a Sunday, or (ii)
a legal holiday in the City of New York, State of Iowa, State of Maryland, State
of  Minnesota  or  State  of North  Carolina  or  (iii) a day on  which  banking
institutions  in the City of New York, or the State of Iowa,  State of Maryland,
State of Minnesota or State of North Carolina are authorized or obligated by law
or executive order to be closed.

            Certificate:  Any  one  of the  Class  A  Certificates  or  Class  B
Certificates.

            Certificate Account: The trust account established and maintained by
the Master  Servicer in the name of the Master Servicer on behalf of the Trustee
pursuant to Section 3.01. The Certificate Account shall be an Eligible Account.

            Certificate Register and Certificate  Registrar:  Respectively,  the
register  maintained pursuant to and the registrar provided for in Section 5.02.
The initial Certificate Registrar is the Trust Administrator.

            Certificateholder  or Holder: The Person in whose name a Certificate
is registered in the Certificate Register,  except that, solely for the purposes
of the  taking  of any  action  under  Articles  VII or  VIII,  any  Certificate
registered  in the name of the  Master  Servicer,  a Servicer  or any  affiliate
thereof shall be deemed not to be outstanding and the Voting Interest  evidenced
thereby  shall not be taken into account in  determining  whether the  requisite
percentage  of  Certificates  necessary  to  effect  any  such  action  has been
obtained.

            Class:  All   certificates   whose  form  is  identical  except  for
variations in the Percentage Interest evidenced thereby.

            Class A Certificate:  Any one of the Class A-1  Certificates,  Class
A-2  Certificates,  Class A-3 Certificates,  Class A-4  Certificates,  Class A-5
Certificates,   Class  A-6  Certificates,  Class  A-7  Certificates,  Class  A-8
Certificates,  Class A-9  Certificates,  Class  A-10  Certificates,  Class  A-11
Certificates,  Class  A-12  Certificates,  Class A-13  Certificates,  Class A-14
Certificates,  Class  A-15  Certificates,  Class A-16  Certificates,  Class A-17
Certificates,  Class  A-18  Certificates,  Class A-19  Certificates,  Class A-20
Certificates,  Class  A-21  Certificates,  Class A-22  Certificates,  Class A-PO
Certificates, Class A-R Certificate or Class A-LR Certificate.

            Class  A  Certificateholder:  The  registered  holder  of a  Class A
Certificate.

            Class A Distribution  Amount:  As to any  Distribution  Date and any
Class of Class A Certificates  (other than the Class A-5, Class A-8, Class A-11,
Class A-13, Class A-19, Class A-20, Class A-21 and Class A-PO Certificates), the
amount  distributable  to  such  Class  of  Class  A  Certificates  pursuant  to
Paragraphs first, second and third clause (A) of Section  4.01(a)(i).  As to the
Class A-8  Certificates,  the sum of (a) with respect to the Accrual  Component,
(i) as to any Distribution  Date prior to the applicable  Accretion  Termination
Date, the amount distributable to the Class A-8 Certificates with respect to the
Accrual  Component  pursuant to the provisos in  Paragraphs  first and second of
Section 4.01(a)(i) and Paragraph third clause (A) of Section 4.01(a)(i) and (ii)
as to any  Distribution  Date on or after the applicable  Accretion  Termination
Date, the amount distributable to the Class A-8 Certificates with respect to the
Accrual Component  pursuant to Paragraphs first,  second and third clause (A) of
Section  4.01(a)(i)  and (b) with  respect to each Class A-8 IO  Component,  the
amount  distributable to the Class A-8  Certificates  with respect to each Class
A-8 IO Component  pursuant to Paragraphs first or second of Section  4.01(a)(i).
As to the Class  A-5,  Class  A-11 and Class  A-19  Certificates,  (a) as to any
Distribution Date prior to the applicable Accretion Termination Date, the amount
distributable to such Class of Accrual Certificates  pursuant to the provisos in
Paragraphs first and second of Section 4.01(a)(i) and Paragraph third clause (A)
of  Section  4.01(a)(i)  and (b) as to any  Distribution  Date on or  after  the
applicable Accretion Termination Date, the amount distributable to such Class of
Accrual  Certificates  pursuant to Paragraphs first, second and third clause (A)
of  Section  4.01(a)(i).   As  to  the  Class  A-21  Certificates,   the  amount
distributable  to such Class pursuant to Paragraphs  first and second of Section
4.01(a)(i).  As to the  Class  A-13 and  Class  A-20  Certificates,  the  amount
distributable  to such Class  pursuant to Paragraph  third clause (A) of Section
4.01(a)(i).  As to any Distribution  Date and the Class A-PO  Certificates,  the
amount distributable to the Class A-PO Certificates pursuant to Paragraphs third
clause (B) and fourth of Section 4.01(a)(i) on such Distribution Date.

            Class A Fixed  Pass-Through  Rate: As to any Distribution  Date, the
rate per annum set forth in Section 11.01.

            Class A Interest Accrual Amount:  As to any  Distribution  Date, the
sum of the Interest Accrual Amounts for the Classes of Class A Certificates with
respect to such Distribution Date.

            Class A Interest  Percentage:  As to any  Distribution  Date and any
Class of Class A Certificates  (other than the Class A-8  Certificates)  and any
Class A-8 Component,  the percentage calculated by dividing the Interest Accrual
Amount of such Class or Component  (determined  without regard to clause (ii) of
the  definition  thereof) by the sum of (a) the Class A Interest  Accrual Amount
(determined  without  regard to clause (ii) of the  definition  of each Interest
Accrual Amount) and (b) the Premium Payment (determined without regard to clause
(ii) of the definition of Premium Payment).

            Class A Interest  Shortfall  Amount: As to any Distribution Date and
any Class of Class A  Certificates,  any  amount by which the  Interest  Accrual
Amount of such Class with respect to such  Distribution  Date exceeds the amount
distributed  in respect  of such Class on such  Distribution  Date  pursuant  to
Paragraph first of Section  4.01(a)(i)  including,  in the case of each Class of
Accrual  Certificates and Class A-8  Certificates  with respect to their Accrual
Component  prior  to the  applicable  Accretion  Termination  Date,  the  amount
included  in the  Accrual  Distribution  Amount  pursuant  to clause  (i) of the
definition thereof.

            As to any Distribution Date and Class A-8 Component,  the product of
(a) the Class A Interest Shortfall Amount of the Class A-8 Certificates for such
Distribution  Date and (b) a fraction,  the  numerator  of which is the Interest
Accrual Amount for such  Component and the  denominator of which is the Interest
Accrual Amount for the Class A-8 Certificates.

            Class A Interest Shortfall Distribution: As to any Distribution Date
and Class of Class A  Certificates,  the amount  distributed  in respect of such
Class pursuant to Paragraph second of Section 4.01(a)(i).

            Class A Interest Shortfall  Percentage:  As to any Distribution Date
and any Class of Class A Certificates (other than the Class A-8 Certificates) or
Class A-8 Component,  the  percentage  calculated by dividing the Class A Unpaid
Interest  Shortfall for such Class or Component by the Aggregate  Class A Unpaid
Interest  Shortfall  determined as of the Business Day preceding the  applicable
Distribution Date.

            Class A Loss Denominator:  As to any  Determination  Date, an amount
equal  to the sum of (i) the  Principal  Balances  of the  Class A  Certificates
(other  than the Class A-5,  Class A-8,  Class  A-11,  Class A-19 and Class A-PO
Certificates);  (ii) with  respect to each Class of  Accrual  Certificates,  the
lesser of the Principal  Balance of such Class of Accrual  Certificates  and the
Original Principal Balance of such Class of Accrual Certificates; and (iii) with
respect to the Accrual  Component,  the lesser of the Principal  Balance of such
Accrual Component and the Original Principal Balance of such Accrual Component.

            Class A Loss Percentage:  As to any Determination Date and any Class
of Class A  Certificates  (other  than the Class A-8,  Class A-20 and Class A-PO
Certificates),  the Class A-8 Accrual Component or any Class A-20 Component then
outstanding, the percentage calculated by dividing the Principal Balance of such
Class or Component  (or, in the case of a Class of Accrual  Certificates  or the
Accrual Component, the Original Principal Balance of such Class or Component, if
lower) by the Class A Loss  Denominator  (determined  without regard to any such
Principal  Balance of any Class of Class A  Certificates  or Component  not then
outstanding), in each case determined as of the preceding Determination Date.

            Class A Non-PO Optimal Amount: As to any Distribution  Date, the sum
for such Distribution Date of (i) the Class A Interest Accrual Amount,  (ii) the
Aggregate Class A Unpaid Interest Shortfall, (iii) the Premium Payment, (iv) the
Premium Unpaid Shortfall and (v) the Class A Non-PO Optimal Principal Amount.

            Class A Non-PO  Optimal  Principal  Amount:  As to any  Distribution
Date, an amount equal to the sum, as to each  Outstanding  Mortgage Loan, of the
product of (x) the Non-PO  Fraction with respect to such Mortgage  Loan, and (y)
the sum of:

            (i)   the Class A  Percentage  of (A) the  principal  portion of the
                  Monthly  Payment due on the Due Date occurring in the month of
                  such  Distribution Date on such Mortgage Loan, less (B) if the
                  Bankruptcy Loss Amount has been reduced to zero, the principal
                  portion of any Debt  Service  Reduction  with  respect to such
                  Mortgage Loan;

            (ii)  the Class A Prepayment Percentage of all Unscheduled Principal
                  Receipts that were received by a Servicer with respect to such
                  Mortgage  Loan  during the  Applicable  Unscheduled  Principal
                  Receipt  Period  relating to such  Distribution  Date for each
                  applicable type of Unscheduled Principal Receipt;


            (iii) the Class A Prepayment  Percentage of the Scheduled  Principal
                  Balance  of  such  Mortgage  Loan  which,   during  the  month
                  preceding the month of such Distribution Date, was repurchased
                  by the Seller pursuant to Section 2.02 or 2.03; and

            (iv)  the Class A Percentage  of the excess of the unpaid  principal
                  balance of such  Mortgage  Loan  substituted  for a  defective
                  Mortgage  Loan during the month  preceding  the month in which
                  such  Distribution  Date  occurs  over  the  unpaid  principal
                  balance  of such  defective  Mortgage  Loan,  less the  amount
                  allocable  to  the  principal   portion  of  any  unreimbursed
                  Periodic Advances previously made by the applicable  Servicer,
                  the Master Servicer or the Trust  Administrator  in respect of
                  such defective Mortgage Loan.

            Class A Non-PO Principal  Amount:  As to any Distribution  Date, the
aggregate  amount  distributed in respect of the Classes of Class A Certificates
pursuant to Paragraph third clause (A) of Section 4.01(a)(i).

            Class A Non-PO Principal Balance: As of any date, an amount equal to
the Class A  Principal  Balance  less the  Principal  Balance  of the Class A-PO
Certificates.

            Class A Non-PO Principal Distribution Amount: As of any Distribution
Date, the sum of (i) the sum of the applicable Accrual Distribution  Amounts, if
any,  with  respect  to such  Distribution  Date  and  (ii)  the  Class A Non-PO
Principal Amount with respect to such Distribution Date.

            Class A  Pass-Through  Rate: As to the Class A-5,  Class A-9,  Class
A-21,  Class  A-22,  Class A-R and Class  A-LR  Certificates,  the Class A Fixed
Pass-Through  Rate.  As to the Class  A-1,  Class  A-2,  Class A-3 and Class A-4
Certificates,  6.000% per annum.  As to the Class  A-10,  Class A-11 Class A-17,
Class A-18 and Class A-19  Certificates,  6.750% per annum. As to the Class A-12
Certificates,  7.000% per annum. As to the Class A-16  Certificates,  6.625% per
annum. As to the Class A-6 Certificates,  the Class A-6 Pass-Through Rate. As to
the Class A-7  Certificates,  the Class A-7  Pass-Through  Rate. As to the Class
A-14  Certificates,  the Class  A-14  Pass-Through  Rate.  As to the Class  A-15
Certificates,  the Class A-15 Pass-Through  Rate. The Class A-13, Class A-20 and
Class  A-PO  Certificates  are not  entitled  to  interest  and  have no Class A
Pass-Through Rate.

            Class A  Percentage:  As to any  Distribution  Date  occurring on or
prior to the  Cross-Over  Date,  the lesser of (i) 100% and (ii) the  percentage
obtained by dividing the Class A Non-PO Principal Balance  (determined as of the
Determination Date preceding such Distribution Date) by the Pool Balance (Non-PO
Portion).  As to any  Distribution  Date occurring  subsequent to the Cross-Over
Date,  100% or such  lesser  percentage  which  will  cause  the  Class A Non-PO
Principal  Balance to decline to zero  following the  distribution  made on such
Distribution Date.

            Class A Prepayment  Percentage:  As to any Distribution  Date to and
including the Distribution  Date in June 2004, 100%. As to any Distribution Date
subsequent to June 2004 to and including the Distribution Date in June 2005, the
Class A Percentage  as of such  Distribution  Date plus 70% of the  Subordinated
Percentage as of such Distribution  Date. As to any Distribution Date subsequent
to June 2005 to and including the  Distribution  Date in June 2006,  the Class A
Percentage as of such Distribution Date plus 60% of the Subordinated  Percentage
as of such  Distribution  Date. As to any  Distribution  Date subsequent to June
2006 to and including the Distribution Date in June 2007, the Class A Percentage
as of such Distribution Date plus 40% of the Subordinated  Percentage as of such
Distribution  Date. As to any  Distribution  Date subsequent to June 2007 to and
including the Distribution  Date in June 2008, the Class A Percentage as of such
Distribution   Date  plus  20%  of  the  Subordinated   Percentage  as  of  such
Distribution  Date. As to any  Distribution  Date  subsequent to June 2008,  the
Class A Percentage as of such Distribution Date. The foregoing is subject to the
following:  (i) if the aggregate distribution to Holders of Class A Certificates
on any Distribution Date of the Class A Prepayment  Percentage provided above of
(a) Unscheduled Principal Receipts distributable on such Distribution Date would
reduce the Class A Non-PO  Principal  Balance below zero, the Class A Prepayment
Percentage for such Distribution Date shall be the percentage necessary to bring
the  Class A  Non-PO  Principal  Balance  to zero  and  thereafter  the  Class A
Prepayment Percentage shall be zero and (ii) if the Class A Percentage as of any
Distribution  Date is greater than the Original Class A Percentage,  the Class A
Prepayment Percentage for such Distribution Date shall be 100%.  Notwithstanding
the  foregoing,  with respect to any  Distribution  Date on which the  following
criteria  are not  met,  the  reduction  of the  Class A  Prepayment  Percentage
described in the second  through sixth  sentences of this  definition of Class A
Prepayment  Percentage shall not be applicable with respect to such Distribution
Date. In such event,  the Class A Prepayment  Percentage  for such  Distribution
Date will be determined  in accordance  with the  applicable  provision,  as set
forth in the first through  fifth  sentences  above,  which was actually used to
determine the Class A Prepayment  Percentage for the Distribution Date occurring
in the June preceding such  Distribution  Date (it being understood that for the
purposes  of the  determination  of the Class A  Prepayment  Percentage  for the
current  Distribution  Date,  the current  Class A Percentage  and  Subordinated
Percentage  shall be utilized).  In order for the  reduction  referred to in the
second  through  sixth   sentences  to  be  applicable,   with  respect  to  any
Distribution  Date  (a)  the  average  outstanding  principal  balance  on  such
Distribution Date and for the preceding five Distribution  Dates on the Mortgage
Loans that were  delinquent  60 days or more  (including  for this  purpose  any
payments  due with  respect to Mortgage  Loans in  foreclosure  and REO Mortgage
Loans)  must be less than 50% of the current  Class B Principal  Balance and (b)
cumulative  Realized  Losses  shall not exceed (1) 30% of the  Original  Class B
Principal  Balance if such  Distribution  Date occurs between and including July
2004 and June 2005 (2) 35% of the  Original  Class B  Principal  Balance if such
Distribution  Date occurs between and including July 2005 and June 2006, (3) 40%
of the  Original  Class B  Principal  Balance if such  Distribution  Date occurs
between and including  July 2006 and June 2007,  (4) 45% of the Original Class B
Principal  Balance if such  Distribution  Date occurs between and including July
2007 and June 2008,  and (5) 50% of the  Original  Class B Principal  Balance if
such  Distribution  Date occurs  during or after July 2008.  With respect to any
Distribution  Date on which the Class A Prepayment  Percentage  is reduced below
the Class A Prepayment  Percentage for the prior  Distribution  Date, the Master
Servicer  shall  certify  to the Trust  Administrator,  based  upon  information
provided  by each  Servicer  as to the  Mortgage  Loans  serviced by it that the
criteria set forth in the preceding sentence are met.

            Class A Principal  Balance:  As of any date,  an amount equal to the
sum of the  Principal  Balances  for  the  Class  A-1  Certificates,  Class  A-2
Certificates,   Class  A-3  Certificates,  Class  A-4  Certificates,  Class  A-5
Certificates,   Class  A-6  Certificates,  Class  A-7  Certificates,  Class  A-8
Certificates,  Class A-9  Certificates,  Class  A-10  Certificates,  Class  A-11
Certificates,  Class  A-12  Certificates,  Class A-13  Certificates,  Class A-14
Certificates,  Class  A-15  Certificates,  Class A-16  Certificates,  Class A-17
Certificates,  Class  A-18  Certificates,  Class A-19  Certificates,  Class A-20
Certificates,  Class  A-22  Certificates,  Class  A-PO  Certificates,  Class A-R
Certificate and Class A-LR Certificate.

            Class A Unpaid Interest  Shortfall:  As to any Distribution Date and
any Class of Class A Certificates  (other than the Class A-8  Certificates)  and
any Class A-8 Component, the amount, if any, by which the aggregate of the Class
A Interest  Shortfall Amounts for such Class or Component for prior Distribution
Dates is in  excess of the  amounts  distributed  in  respect  of such  Class or
Component  (or in the  case  of a  Class  of  Accrual  Certificates  or  Accrual
Component  prior  to the  applicable  Accretion  Termination  Date,  the  amount
included  in the  Accrual  Distribution  Amount  pursuant  to clause (ii) of the
definition  thereof) on prior Distribution Dates pursuant to Paragraph second of
Section 4.01(a)(i).

            Class A-1 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  A-1 and
Exhibit C hereto.

            Class A-1  Certificateholder:  The registered  holder of a Class A-1
Certificate.

            Class A-2 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  A-2 and
Exhibit C hereto.

            Class A-2  Certificateholder:  The registered  holder of a Class A-2
Certificate.

            Class A-3 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  A-3 and
Exhibit C hereto.

            Class A-3  Certificateholder:  The registered  holder of a Class A-3
Certificate.

            Class A-4 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  A-4 and
Exhibit C hereto.

            Class A-4  Certificateholder:  The registered  holder of a Class A-4
Certificate.

            Class A-5 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  A-5 and
Exhibit C hereto.

            Class A-5  Certificateholder:  The registered  holder of a Class A-5
Certificate.

            Class A-6 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  A-6 and
Exhibit C hereto.

            Class A-6  Certificateholder:  The registered  holder of a Class A-6
Certificate.

            Class A-6 Pass-Through  Rate: With respect to the Distribution  Date
occurring  in July  1999,  5.750%  per annum.  With  respect to each  succeeding
Distribution  Date, a per annum rate,  determined by the Trust  Administrator on
the Rate Determination Date occurring in the second month preceding the month in
which such  Distribution  Date occurs in the manner  specified  in Section  4.10
hereof,  equal to 0.850%  plus LIBOR  subject to a minimum  rate of 0.850% and a
maximum rate of 9.000%.

            Class A-7 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  A-7 and
Exhibit C hereto.

            Class A-7  Certificateholder:  The registered  holder of a Class A-7
Certificate.

            Class A-7 Pass-Through  Rate: With respect to the Distribution  Date
occurring  in July  1999,  8.450%  per annum.  With  respect to each  succeeding
Distribution  Date, a per annum rate,  determined by the Trust  Administrator on
the Rate Determination Date occurring in the second month preceding the month in
which such  Distribution  Date occurs in the manner  specified  in Section  4.10
hereof,  equal to  21.190%  minus the  product  of 2.600 and LIBOR  subject to a
minimum rate of 0.000% and a maximum rate of 21.190%

            Class A-8 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  A-8 and
Exhibit C hereto.

            Class A-8  Certificateholder:  The registered  holder of a Class A-8
Certificate.

            Class A-8  Component:  Any of the Class  A-8 IO  Components  and the
Class A-8 Accrual Component.

            Class A-8 IO  Component:  Any of the Class  A-8A IO,  Class A-8B IO,
Class A-8C IO and Class A-8D IO Components.

            Class A-8 IO Notional  Amount:  Any of the Class A-8A IO  Component,
Class A-8B IO  Component,  Class A-8C IO  Component  and Class A-8D IO Component
Notional Amounts.

            Class A-8A IO  Component  Notional  Amount:  As to any  Distribution
Date, an amount equal to the Principal Balance of the Class A-1 Certificates.

            Class A-8B IO  Component  Notional  Amount:  As to any  Distribution
Date, an amount equal to the Principal Balance of the Class A-2 Certificates.

            Class A-8C IO  Component  Notional  Amount:  As to any  Distribution
Date, an amount equal to the Principal Balance of the Class A-3 Certificates.

            Class A-8D IO  Component  Notional  Amount:  As to any  Distribution
Date, an amount equal to the Principal Balance of the Class A-4 Certificates.

            Class A-8 Loss Amount:  With respect to any Determination Date after
the Cross-Over Date, the amount,  if any, by which the Principal  Balance of the
Class A-8 Accrual  Component  would be reduced as a result of the application of
the third sentence of the definition of Principal Balance.

            Class A-9 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  A-9 and
Exhibit C hereto.

            Class A-9  Certificateholder:  The registered  holder of a Class A-9
Certificate.

            Class A-9 Loss Allocation Amount:  With respect to any Determination
Date after the  Cross-Over  Date the lesser of (a) the Principal  Balance of the
Class A-9  Certificates  with  respect to such  Determination  Date prior to any
reduction  for the Class A-9 Loss  Allocation  Amount and (b) the Class A-8 Loss
Amount.

            Class A-9 Priority Amount:  For any Distribution Date, the lesser of
(i) the Principal  Balance of the Class A-9 Certificates and (ii) the product of
(A) the Class A  Percentage  and (B) the sum of (1) the product of (x) the Class
A-9  Priority  Percentage  and (y) the sum of (a)  the  product  of the  Group I
Scheduled  Principal  Amount and the Group I-1  Percentage  and (b) the Group II
Scheduled  Principal  Amount and (2) the  product of (x) the Class A-9  Priority
Percentage,  (y)  the  Prepayment  Shift  Percentage  and (z) the sum of (a) the
product of the Group I Unscheduled Principal Amount and the Group I-1 Percentage
and (b) the Group II Unscheduled Principal Amount.

            Class A-9  Priority  Percentage:  (i) The  Principal  Balance of the
Class A-9 Certificates, divided by (ii) the sum of the Principal Balances of the
Group 1 Certificates.

            Class A-10 Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-10 and
Exhibit C hereto.

            Class A-10 Certificateholder:  The registered holder of a Class A-10
Certificate.

            Class A-11 Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-11 and
Exhibit C hereto.

            Class A-11 Certificateholder:  The registered holder of a Class A-11
Certificate.

            Class A-12 Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-12 and
Exhibit C hereto.

            Class A-12 Certificateholder:  The registered holder of a Class A-12
Certificate.

            Class A-12 Distribution  Deficiency:  With respect to the Class A-12
Certificates on each  Distribution  Date, the sum of (i) the Class A-12 Interest
Loss Amount for such  Distribution  Date and (ii) the Class A-12  Principal Loss
Amount for such Distribution.

            Class A-12 Interest Loss Amount:  As to any  Distribution  Date, the
excess,  if  any,  of  (i)  the  Interest  Accrual  Amount  of  the  Class  A-12
Certificates  (determined  without  regard  to  clause  (ii)  of the  definition
thereof),  net of any Non-Supported  Interest Shortfalls  allocated to the Class
A-12  Certificates  that are  covered by the  Reserve  Fund over (ii) the amount
available to be  distributed in respect of the Class A-12  Certificates  on such
Distribution Date pursuant to Paragraph first of Section 4.01(a)(i).

            Class A-12 Principal Loss Amount:  As to any Distribution  Date, the
sum of, without  duplication,  (i) the Class A Loss Percentage of the Class A-12
Certificates of the principal  portion of Realized Losses allocated to the Class
A  Certificates  (other than the Class A-PO  Certificates)  with respect to such
Distribution  Date pursuant to Section 4.02(b) and (ii) any amount  allocated to
the Class  A-12  Certificates  after the  Cross-Over  Date with  respect to such
Distribution  Date pursuant to the third sentence in the definition of Principal
Balance of the Class A-12 Certificates.

            Class A-13 Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-13 and
Exhibit C hereto.

            Class A-13 Certificateholder:  The registered holder of a Class A-13
Certificate.

            Class A-14 Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-14 and
Exhibit C hereto.

            Class A-14 Certificateholder:  The registered holder of a Class A-14
Certificate.

            Class A-14 Pass-Through  Rate: With respect to the Distribution Date
occurring  in July  1999,  5.918%  per annum.  With  respect to each  succeeding
Distribution  Date, a per annum rate,  determined by the Trust  Administrator on
the Rate Determination Date occurring in the second month preceding the month in
which such  Distribution  Date occurs in the manner  specified  in Section  4.10
hereof,  equal to 1.000%  plus LIBOR  subject to a minimum  rate of 1.000% and a
maximum rate of 8.500%.

            Class A-15 Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-15 and
Exhibit C hereto.

            Class A-15 Certificateholder:  The registered holder of a Class A-15
Certificate.

            Class A-15 Pass-Through  Rate: With respect to the Distribution Date
occurring in July 1999, 9.9591430000% per annum. With respect to each succeeding
Distribution  Date, a per annum rate,  determined by the Trust  Administrator on
the Rate Determination Date occurring in the second month preceding the month in
which such  Distribution  Date occurs in the manner  specified  in Section  4.10
hereof,  equal to  28.9285714286%  minus the product of  3.8571428571  and LIBOR
subject to a minimum rate of 0.000% and a maximum rate of 28.9285714286%

            Class A-16 Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-16 and
Exhibit C hereto.

            Class A-16 Certificateholder:  The registered holder of a Class A-16
Certificate.

            Class A-17 Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-17 and
Exhibit C hereto.

            Class A-17 Certificateholder:  The registered holder of a Class A-17
Certificate.

            Class A-18 Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-18 and
Exhibit C hereto.

            Class A-18 Certificateholder:  The registered holder of a Class A-18
Certificate.

            Class A-19 Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-19 and
Exhibit C hereto.

            Class A-19 Certificateholder:  The registered holder of a Class A-19
Certificate.

            Class A-19 Loss Amount: With respect to any Determination Date after
the Cross-Over Date, the amount,  if any, by which the Principal  Balance of the
Class A-19  Certificates  would be reduced as a result of the application of the
third sentence of the definition of Principal Balance.

            Class A-20 Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-20 and
Exhibit C hereto.

            Class A-20 Certificateholder:  The registered holder of a Class A-20
Certificate.

            Class A-20  Component:  Either of the Class A-20A  Component  or the
Class A-20B Component.

            Class A-21 Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-21 and
Exhibit C hereto.

            Class A-21 Certificateholder:  The registered holder of a Class A-21
Certificate.

            Class A-21 Interest Accrual Amount: As to any Distribution Date, (i)
the  product of (A) 1/12th of the Class A  Pass-Through  Rate for the Class A-21
Certificates and (B) the Class A-21 Notional Amount as of such Distribution Date
minus (ii) the Class A Interest Percentage of the Class A-21 Certificates of (x)
any Non-Supported  Interest Shortfall  allocated to the Class A Certificates and
the Premium  Payment,  (y) the  interest  portion of any Excess  Special  Hazard
Losses,  Excess Fraud Losses and Excess Bankruptcy Losses allocated to the Class
A Certificates  and the Premium Payment with respect to such  Distribution  Date
pursuant to Section 4.02(e) and (z) the interest  portion of any Realized Losses
(other  than  Excess  Special  Hazard  Losses,  Excess  Fraud  Losses and Excess
Bankruptcy Losses) allocated to the Class A Certificates and the Premium Payment
on or after the Cross-Over Date pursuant to Section 4.02(e).

            Class A-21 Notional Amount:  As to any Distribution  Date, an amount
equal to 1.9230769231% of the Principal Balance of the Class A-16 Certificates.

            Class A-22 Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-22 and
Exhibit C hereto.

            Class A-22 Certificateholder:  The registered holder of a Class A-22
Certificate.

            Class A-22 Loss Allocation Amount: With respect to any Determination
Date after the  Cross-Over  Date the lesser of (a) the Principal  Balance of the
Class A-22  Certificates  with respect to such  Determination  Date prior to any
reduction for the Class A-22 Loss Allocation  Amount and (b) the Class A-19 Loss
Amount.

            Class A-22 Priority Amount: For any Distribution Date, the lesser of
(i) the Principal Balance of the Class A-22 Certificates and (ii) the product of
(A) the Class A  Percentage  and (B) the sum of (1) the product of (x) the Class
A-22  Priority  Percentage  and (y) the sum of (a) the  product  of the  Group I
Scheduled  Principal  Amount and the Group I-2  Percentage and (b) the Group III
Scheduled  Principal  Amount and (2) the product of (x) the Class A-22  Priority
Percentage,  (y)  the  Prepayment  Shift  Percentage  and (z) the sum of (a) the
product of the Group I Unscheduled Principal Amount and the Group I-2 Percentage
and (b) the Group III Unscheduled Principal Amount.

            Class A-22 Priority  Percentage:  (i) The  Principal  Balance of the
Class A-22 Certificates divided by (ii) the sum of the Principal Balances of the
Group 2 Certificates.

            Class A-L1  Interest:  A regular  interest in the  Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class A-L2  Interest:  A regular  interest in the  Lower-Tier  REMIC
which is held as an asset of the Upper  Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class A-L3  Interest:  A regular  interest in the  Lower-Tier  REMIC
which is held as an asset of the Upper  Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class A-L4  Interest:  A regular  interest in the  Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class A-L5  Interest:  A regular  interest in the  Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class A-L6  Interest:  A regular  interest in the  Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class A-L8  Interest:  A regular  interest in the  Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class A-L10  Interest:  A regular  interest in the Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class A-L12  Interest:  A regular  interest in the Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class A-L14  Interest:  A regular  interest in the Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class A-L16  Interest:  A regular  interest in the Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class A-L20  Interest:  A regular  interest in the Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class A-LPO  Interest:  A regular  interest in the Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class  A-LR  Certificate:  The  Certificate  executed  by the  Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit A-LR and Exhibit D hereto.

            Class A-LR  Certificateholder:  The  registered  holder of the Class
A-LR Certificate.

            Class A-LUR  Interest:  A regular  interest in the Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class A-PO Certificate:  Any one of the Certificates executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in Exhibit  A-PO and
Exhibit C hereto.

            Class A-PO Certificateholder:  The registered holder of a Class A-PO
Certificate.

            Class A-PO Deferred Amount:  For any Distribution  Date prior to the
Cross-Over  Date, the difference  between (A) the sum of (x) the amount by which
the sum of the Class A-PO Optimal Principal  Amounts for all prior  Distribution
Dates exceeded the amounts  distributed on the Class A-PO  Certificates  on such
prior  Distribution  Dates  pursuant to  Paragraph  third  clause (B) of Section
4.01(a)(i) and (y) the sum of the product for each Discount  Mortgage Loan which
became  a  Liquidated  Loan  at any  time on or  prior  to the  last  day of the
applicable  Unscheduled  Principal  Receipt Period for the current  Distribution
Date of (a) the PO Fraction for such  Discount  Mortgage  Loan and (b) an amount
equal to the principal  portion of Realized Losses (other than Bankruptcy Losses
due to Debt Service  Reductions)  incurred  with respect to such  Mortgage  Loan
other  than  Excess  Special  Hazard  Losses,  Excess  Fraud  Losses  and Excess
Bankruptcy Losses and (B) amounts  distributed on the Class A-PO Certificates on
prior Distribution Dates pursuant to Paragraph fourth of Section 4.01(a)(i).  On
and after the Cross-Over  Date, the Class A-PO Deferred  Amount will be zero. No
interest will accrue on any Class A-PO Deferred Amount.

            Class A-PO Optimal Principal Amount: As to any Distribution Date, an
amount equal to the sum as to each Outstanding  Mortgage Loan, of the product of
(x) the PO Fraction  with respect to such  Mortgage Loan and (y) the sum of:

            (i)   (A) the  principal  portion of the Monthly  Payment due on the
                  Due Date occurring in the month of such  Distribution  Date on
                  such Mortgage Loan, less (B) if the Bankruptcy Loss Amount has
                  been  reduced  to  zero,  the  principal  portion  of any Debt
                  Service Reduction with respect to such Mortgage Loan;

            (ii)  all  Unscheduled  Principal  Receipts  that were received by a
                  Servicer  with  respect  to  such  Mortgage  Loan  during  the
                  Applicable  Unscheduled  Principal  Receipt Period relating to
                  such Distribution Date for each applicable type of Unscheduled
                  Principal Receipt;

            (iii) the Scheduled Principal Balance of each Mortgage Loan that was
                  repurchased by the Seller during such preceding month pursuant
                  to Section 2.02 or 2.03;

            (iv)  the excess of the unpaid  principal  balance of such  Mortgage
                  Loan  substituted  for a  defective  Mortgage  Loan during the
                  month  preceding  the month in which  such  Distribution  Date
                  occurs  over the unpaid  principal  balance of such  defective
                  Mortgage  Loan,  less the amount  allocable  to the  principal
                  portion of any unreimbursed  Periodic Advances previously made
                  by the applicable  Servicer,  the Master Servicer or the Trust
                  Administrator in respect of such defective Mortgage Loan.

            Class  A-R  Certificate:  The  Certificate  executed  by  the  Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit A-R and Exhibit C hereto.

            Class A-R Certificateholder:  The registered holder of the Class A-R
Certificate.

            Class B Certificate:  Any one of the Class B-1  Certificates,  Class
B-2  Certificates,  Class B-3 Certificates,  Class B-4  Certificates,  Class B-5
Certificates or Class B-6 Certificates.

            Class  B  Certificateholder:  The  registered  holder  of a  Class B
Certificate.

            Class B Distribution  Amount: Any of the Class B-1, Class B-2, Class
B-3, Class B-4, Class B-5 or Class B-6 Distribution Amounts.

            Class B Interest Accrual Amount:  As to any  Distribution  Date, the
sum of the Interest Accrual Amounts for the Classes of Class B Certificates with
respect to such Distribution Date.

            Class B Interest  Percentage:  As to any  Distribution  Date and any
Class of  Class B  Certificates,  the  percentage  calculated  by  dividing  the
Interest Accrual Amount of such Class (determined  without regard to clause (ii)
of the definition  thereof) by the Class B Interest  Accrual Amount  (determined
without  regard  to  clause  (ii) of the  definition  of each  Interest  Accrual
Amount).

            Class B Interest  Shortfall  Amount:  Any of the Class B-1  Interest
Shortfall  Amount,  Class B-2  Interest  Shortfall  Amount,  Class B-3  Interest
Shortfall  Amount,  Class B-4  Interest  Shortfall  Amount,  Class B-5  Interest
Shortfall Amount or Class B-6 Interest Shortfall Amount.

            Class B Loss Percentage:  As to any Determination Date and any Class
of Class B Certificates then outstanding,  the percentage calculated by dividing
the  Principal  Balance  of  such  Class  B by the  Class  B  Principal  Balance
(determined  without  regard to any  Principal  Balance  of any Class of Class B
Certificates not then outstanding),  in each case determined as of the preceding
Determination Date.

            Class B Optimal Principal Amount:  Any of the Class B-1, Class B-2 ,
Class B-3, Class B-4, Class B-5 or Class B-6 Optimal Principal Amounts.

            Class B Pass-Through  Rate: As to any Distribution  Date, 6.500% per
annum.

            Class B Percentage:  Any one of the Class B-1 Percentage,  Class B-2
Percentage,  Class B-3 Percentage, Class B-4 Percentage, Class B-5 Percentage or
Class B-6 Percentage.

            Class B  Prepayment  Percentage:  Any of the  Class  B-1  Prepayment
Percentage,  Class B-2 Prepayment  Percentage,  Class B-3 Prepayment Percentage,
Class B-4 Prepayment  Percentage,  Class B-5 Prepayment  Percentage or Class B-6
Prepayment Percentage.

            Class B Principal  Balance:  As of any date,  an amount equal to the
sum of the Class B-1 Principal Balance,  Class B-2 Principal Balance,  Class B-3
Principal Balance,  Class B-4 Principal Balance, Class B-5 Principal Balance and
Class B-6 Principal Balance.

            Class B Unpaid  Interest  Shortfall:  Any of the  Class  B-1  Unpaid
Interest  Shortfall,  Class B-2  Unpaid  Interest  Shortfall,  Class B-3  Unpaid
Interest  Shortfall,  Class B-4  Unpaid  Interest  Shortfall,  Class B-5  Unpaid
Interest Shortfall or Class B-6 Unpaid Interest Shortfall.

            Class B-1 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  B-1 and
Exhibit C hereto.

            Class B-1  Certificateholder:  The registered  holder of a Class B-1
Certificate.

            Class B-1  Distribution  Amount:  As to any  Distribution  Date, any
amount  distributable to the Holders of the Class B-1  Certificates  pursuant to
Paragraphs fifth, sixth and seventh of Section 4.01(a)

            Class B-1 Interest  Shortfall Amount:  As to any Distribution  Date,
any amount by which the Interest  Accrual  Amount of the Class B-1  Certificates
with respect to such Distribution Date exceeds the amount distributed in respect
of the Class B-1  Certificates on such  Distribution  Date pursuant to Paragraph
fifth of Section 4.01(a)(i).

            Class B-1 Optimal Principal Amount: As to any Distribution  Date, an
amount equal to the sum, as to each Outstanding Mortgage Loan, of the product of
(x) the Non-PO Fraction with respect to such Mortgage Loan and (y) the sum of:

            (i)   the Class B-1  Percentage of (A) the principal  portion of the
                  Monthly  Payment due on the Due Date occurring in the month of
                  such  Distribution Date on such Mortgage Loan, less (B) if the
                  Bankruptcy Loss Amount has been reduced to zero, the principal
                  portion of any Debt  Service  Reduction  with  respect to such
                  Mortgage Loan;

            (ii)  the  Class  B-1  Prepayment   Percentage  of  all  Unscheduled
                  Principal  Receipts  that were  received  by a  Servicer  with
                  respect  to  such   Mortgage   Loan   during  the   Applicable
                  Unscheduled   Principal   Receipt  Period   relating  to  such
                  Distribution  Date for  each  applicable  type of  Unscheduled
                  Principal Receipt;

            (iii) the Class B-1 Prepayment Percentage of the Scheduled Principal
                  Balance  of  such  Mortgage  Loan  which,   during  the  month
                  preceding the month of such Distribution Date, was repurchased
                  by the Seller pursuant to Section 2.02 or 2.03; and

            (iv)  the Class B-1 Percentage of the excess of the unpaid principal
                  balance of such  Mortgage  Loan  substituted  for a  defective
                  Mortgage  Loan during the month  preceding  the month in which
                  such  Distribution  Date  occurs  over  the  unpaid  principal
                  balance  of such  defective  Mortgage  Loan,  less the  amount
                  allocable  to  the  principal   portion  of  any  unreimbursed
                  Periodic Advances previously made by the applicable  Servicer,
                  the Master Servicer or the Trust  Administrator  in respect of
                  such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Class and such  Distribution  Date, the Class B-1 Optimal  Principal Amount
will equal the lesser of (A) the Class B-1 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-1 Certificates.

            Class B-1 Percentage:  As to any  Distribution  Date, the percentage
calculated by multiplying the Subordinated Percentage by either (i) if any Class
B Certificates  (other than the Class B-1  Certificates) are eligible to receive
principal  distributions  for such  Distribution Date in accordance with Section
4.01(d),  a fraction,  the numerator of which is the Class B-1 Principal Balance
(determined as of the Determination  Date preceding such Distribution  Date) and
the denominator of which is the sum of the Principal  Balances of the Classes of
Class B  Certificates  eligible  to  receive  principal  distributions  for such
Distribution  Date in accordance  with the provisions of Section 4.01(d) or (ii)
except  as set  forth in  Section  4.01(d)(ii),  in the  event  that the Class B
Certificates (other than the Class B-1 Certificates) are not eligible to receive
distributions of principal in accordance with Section 4.01(d)(i), one.

            Class B-1 Prepayment  Percentage:  As to any Distribution  Date, the
percentage  calculated by multiplying the Subordinated  Prepayment Percentage by
either (i) if any Class B Certificates  (other than the Class B-1  Certificates)
are eligible to receive  principal  distributions  for such Distribution Date in
accordance with Section 4.01(d), a fraction, the numerator of which is the Class
B-1 Principal Balance  (determined as of the  Determination  Date preceding such
Distribution  Date)  and the  denominator  of which is the sum of the  Principal
Balances of the Classes of Class B  Certificates  eligible to receive  principal
distributions  for such  Distribution  Date in accordance with the provisions of
Section 4.01(d) or (ii) except as set forth in Section 4.01(d)(ii), in the event
that the Class B Certificates  (other than the Class B-1  Certificates)  are not
eligible to receive  distributions  of  principal  in  accordance  with  Section
4.01(d)(i), one.

            Class B-1 Principal Balance: As to the first Determination Date, the
Original Class B-1 Principal Balance.  As of any subsequent  Determination Date,
the lesser of (i) the Original  Class B-1 Principal  Balance less the sum of (a)
all amounts  previously  distributed in respect of the Class B-1 Certificates on
prior Distribution Dates (A) pursuant to Paragraph seventh of Section 4.01(a)(i)
and (B) as a  result  of a  Principal  Adjustment  and (b) the  Realized  Losses
allocated through such Determination Date to the Class B-1 Certificates pursuant
to  Section  4.02(b)  and (ii) the  Adjusted  Pool  Amount  as of the  preceding
Distribution  Date less the Class A Principal  Balance as of such  Determination
Date.

            Class B-1 Unpaid Interest  Shortfall:  As to any Distribution  Date,
the amount,  if any, by which the aggregate of the Class B-1 Interest  Shortfall
Amounts for prior Distribution Dates is in excess of the amounts  distributed in
respect of the Class B-1  Certificates on prior  Distribution  Dates pursuant to
Paragraph sixth of Section 4.01(a)(i).

            Class B-2 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  B-2 and
Exhibit C hereto.

            Class B-2  Certificateholder:  The registered  holder of a Class B-2
Certificate.

            Class B-2  Distribution  Amount:  As to any  Distribution  Date, any
amount  distributable to the Holders of the Class B-2  Certificates  pursuant to
Paragraphs eighth, ninth and tenth of Section 4.01(a)(i).

            Class B-2 Interest  Shortfall Amount:  As to any Distribution  Date,
any amount by which the Interest  Accrual  Amount of the Class B-2  Certificates
with respect to such Distribution Date exceeds the amount distributed in respect
of the Class B-2  Certificates on such  Distribution  Date pursuant to Paragraph
eighth of Section 4.01(a)(i).

            Class B-2 Optimal Principal Amount: As to any Distribution  Date, an
amount equal to the sum, as to each Outstanding Mortgage Loan, of the product of
(x) the Non-PO  Fraction  with respect to such Mortgage Loan and (y) the sum of:

            (i)   the Class B-2  Percentage of (A) the principal  portion of the
                  Monthly  Payment due on the Due Date occurring in the month of
                  such  Distribution Date on such Mortgage Loan, less (B) if the
                  Bankruptcy Loss Amount has been reduced to zero, the principal
                  portion of any Debt  Service  Reduction  with  respect to such
                  Mortgage Loan;

            (ii)  the  Class  B-2  Prepayment   Percentage  of  all  Unscheduled
                  Principal  Receipts  that were  received  by a  Servicer  with
                  respect  to  such   Mortgage   Loan   during  the   Applicable
                  Unscheduled   Principal   Receipt  Period   relating  to  such
                  Distribution  Date for  each  applicable  type of  Unscheduled
                  Principal Receipt;

            (iii) the Class B-2 Prepayment Percentage of the Scheduled Principal
                  Balance  of  such  Mortgage  Loan  which,   during  the  month
                  preceding the month of such Distribution Date, was repurchased
                  by the Seller pursuant to Section 2.02 or 2.03; and

            (iv)  the Class B-2 Percentage of the excess of the unpaid principal
                  balance of such  Mortgage  Loan  substituted  for a  defective
                  Mortgage  Loan during the month  preceding  the month in which
                  such  Distribution  Date  occurs  over  the  unpaid  principal
                  balance  of such  defective  Mortgage  Loan,  less the  amount
                  allocable  to  the  principal   portion  of  any  unreimbursed
                  Periodic Advances previously made by the applicable  Servicer,
                  the Master Servicer or the Trust  Administrator  in respect of
                  such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Class and such  Distribution  Date, the Class B-2 Optimal  Principal Amount
will equal the lesser of (A) the Class B-2 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-2 Certificates.

            Class B-2 Percentage:  As to any  Distribution  Date,  except as set
forth in the next  sentence,  the percentage  calculated by multiplying  (i) the
Subordinated  Percentage by (ii) a fraction, the numerator of which is the Class
B-2 Principal Balance  (determined as of the  Determination  Date preceding such
Distribution  Date)  and the  denominator  of which is the sum of the  Principal
Balances of the Classes of Class B  Certificates  eligible to receive  principal
distributions  for such  Distribution  Date in accordance with the provisions of
Section 4.01(d).  Except as set forth in Section 4.01(d)(ii),  in the event that
the  Class  B-2  Certificates  are not  eligible  to  receive  distributions  of
principal in accordance  with Section  4.01(d)(i),  the Class B-2 Percentage for
such Distribution Date will be zero.

            Class B-2 Prepayment Percentage: As to any Distribution Date, except
as set forth in the next sentence,  the percentage calculated by multiplying (i)
the  Subordinated  Prepayment  Percentage  by (ii) a fraction,  the numerator of
which is the Class B-2 Principal  Balance  (determined  as of the  Determination
Date preceding such  Distribution  Date) and the denominator of which is the sum
of the  Principal  Balances of the Classes of Class B  Certificates  eligible to
receive  principal  distributions  for such Distribution Date in accordance with
the provisions of Section 4.01(d).  Except as set forth in Section  4.01(d)(ii),
in the  event  that the Class  B-2  Certificates  are not  eligible  to  receive
distributions of principal in accordance with Section 4.01(d)(i),  the Class B-2
Prepayment Percentage for such Distribution Date will be zero.

            Class B-2 Principal Balance: As to the first Determination Date, the
Original Class B-2 Principal Balance.  As of any subsequent  Determination Date,
the lesser of (i) the Original  Class B-2 Principal  Balance less the sum of (a)
all amounts  previously  distributed in respect of the Class B-2 Certificates on
prior  Distribution  Dates (A) pursuant to Paragraph tenth of Section 4.01(a)(i)
and (B) as a  result  of a  Principal  Adjustment  and (b) the  Realized  Losses
allocated through such Determination Date to the Class B-2 Certificates pursuant
to  Section  4.02(b)  and (ii) the  Adjusted  Pool  Amount  as of the  preceding
Distribution  Date less the sum of the Class A  Principal  Balance and the Class
B-1 Principal Balance as of such Determination Date.

            Class B-2 Unpaid Interest  Shortfall:  As to any Distribution  Date,
the amount,  if any, by which the aggregate of the Class B-2 Interest  Shortfall
Amounts for prior Distribution Dates is in excess of the amounts  distributed in
respect of the Class B-2  Certificates on prior  Distribution  Dates pursuant to
Paragraph ninth of Section 4.01(a)(i).

            Class B-3 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  B-3 and
Exhibit C hereto.

            Class B-3  Certificateholder:  The registered  holder of a Class B-3
Certificate.

            Class B-3  Distribution  Amount:  As to any  Distribution  Date, any
amount  distributable to the Holders of the Class B-3  Certificates  pursuant to
Paragraphs eleventh, twelfth and thirteenth of Section 4.01(a)(i).

            Class B-3 Interest  Shortfall Amount:  As to any Distribution  Date,
any amount by which the Interest  Accrual  Amount of the Class B-3  Certificates
with respect to such Distribution Date exceeds the amount distributed in respect
of the Class B-3  Certificates on such  Distribution  Date pursuant to Paragraph
eleventh of Section 4.01(a)(i).

            Class B-3 Optimal Principal Amount: As to any Distribution  Date, an
amount equal to the sum, as to each Outstanding Mortgage Loan, of the product of
(x) the Non-PO  Fraction  with respect to such Mortgage Loan and (y) the sum of:

            (i)   the Class B-3  Percentage of (A) the principal  portion of the
                  Monthly  Payment due on the Due Date occurring in the month of
                  such  Distribution Date on such Mortgage Loan, less (B) if the
                  Bankruptcy Loss Amount has been reduced to zero, the principal
                  portion of any Debt  Service  Reduction  with  respect to such
                  Mortgage Loan;

            (ii)  the  Class  B-3  Prepayment   Percentage  of  all  Unscheduled
                  Principal  Receipts  that were  received  by a  Servicer  with
                  respect  to  such   Mortgage   Loan   during  the   Applicable
                  Unscheduled   Principal   Receipt  Period   relating  to  such
                  Distribution  Date for  each  applicable  type of  Unscheduled
                  Principal Receipt;

            (iii) the Class B-3 Prepayment Percentage of the Scheduled Principal
                  Balance  of  such  Mortgage  Loan  which,   during  the  month
                  preceding the month of such Distribution Date, was repurchased
                  by the Seller pursuant to Section 2.02 or 2.03; and

            (iv)  the Class B-3 Percentage of the excess of the unpaid principal
                  balance of such  Mortgage  Loan  substituted  for a  defective
                  Mortgage  Loan during the month  preceding  the month in which
                  such  Distribution  Date  occurs  over  the  unpaid  principal
                  balance  of such  defective  Mortgage  Loan,  less the  amount
                  allocable  to  the  principal   portion  of  any  unreimbursed
                  Periodic Advances previously made by the applicable  Servicer,
                  the Master Servicer or the Trust  Administrator  in respect of
                  such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Class and such  Distribution  Date, the Class B-3 Optimal  Principal Amount
will equal the lesser of (A) the Class B-3 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-3 Certificates.

            Class B-3 Percentage:  As to any  Distribution  Date,  except as set
forth in the next  sentence,  the percentage  calculated by multiplying  (i) the
Subordinated  Percentage by (ii) a fraction, the numerator of which is the Class
B-3 Principal Balance  (determined as of the  Determination  Date preceding such
Distribution  Date)  and the  denominator  of which is the sum of the  Principal
Balances of the Classes of Class B  Certificates  eligible to receive  principal
distributions  for such  Distribution  Date in accordance with the provisions of
Section 4.01(d).  Except as set forth in Section 4.01(d)(ii),  in the event that
the  Class  B-3  Certificates  are not  eligible  to  receive  distributions  of
principal in accordance  with Section  4.01(d)(i),  the Class B-3 Percentage for
such Distribution Date will be zero.

            Class B-3 Prepayment Percentage: As to any Distribution Date, except
as set forth in the next sentence,  the percentage calculated by multiplying (i)
the  Subordinated  Prepayment  Percentage  by (ii) a fraction,  the numerator of
which is the Class B-3 Principal  Balance  (determined  as of the  Determination
Date preceding such  Distribution  Date) and the denominator of which is the sum
of the  Principal  Balances of the Classes of Class B  Certificates  eligible to
receive  principal  distributions  for such Distribution Date in accordance with
the provisions of Section 4.01(d).  Except as set forth in Section  4.01(d)(ii),
in the  event  that the Class  B-3  Certificates  are not  eligible  to  receive
distributions of principal in accordance with Section 4.01(d)(i),  the Class B-3
Prepayment Percentage for such Distribution Date will be zero.

            Class B-3 Principal Balance: As to the first Determination Date, the
Original Class B-3 Principal Balance.  As of any subsequent  Determination Date,
the lesser of (i) the Original  Class B-3 Principal  Balance less the sum of (a)
all amounts  previously  distributed in respect of the Class B-3 Certificates on
prior  Distribution  Dates (A)  pursuant  to  Paragraph  thirteenth  of  Section
4.01(a)(i)  and (B) as a result of a Principal  Adjustment  and (b) the Realized
Losses allocated through such  Determination  Date to the Class B-3 Certificates
pursuant  to  Section  4.02(b)  and  (ii) the  Adjusted  Pool  Amount  as of the
preceding  Distribution Date less the sum of the Class A Principal Balance,  the
Class B-1  Principal  Balance  and the Class B-2  Principal  Balance  as of such
Determination Date.

            Class B-3 Unpaid Interest  Shortfall:  As to any Distribution  Date,
the amount,  if any, by which the aggregate of the Class B-3 Interest  Shortfall
Amounts for prior Distribution Dates is in excess of the amounts  distributed in
respect of the Class B-3  Certificates on prior  Distribution  Dates pursuant to
Paragraph twelfth of Section 4.01(a)(i).

            Class B-4 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  B-4 and
Exhibit C hereto.

            Class B-4  Certificateholder:  The registered  holder of a Class B-4
Certificate.

            Class B-4  Distribution  Amount:  As to any  Distribution  Date, any
amount  distributable to the Holders of the Class B-4  Certificates  pursuant to
Paragraphs fourteenth, fifteenth, and sixteenth of Section 4.01(a)(i).

            Class B-4 Interest  Shortfall Amount:  As to any Distribution  Date,
any amount by which the Interest  Accrual  Amount of the Class B-4  Certificates
with respect to such Distribution Date exceeds the amount distributed in respect
of the Class B-4  Certificates on such  Distribution  Date pursuant to Paragraph
fourteenth of Section 4.01(a)(i).

            Class B-4 Optimal Principal Amount: As to any Distribution  Date, an
amount equal to the sum, as to each Outstanding Mortgage Loan, of the product of
(x) the Non-PO  Fraction  with respect to such Mortgage Loan and (y) the sum of:

            (i)   the Class B-4  Percentage of (A) the principal  portion of the
                  Monthly  Payment due on the Due Date occurring in the month of
                  such  Distribution Date on such Mortgage Loan, less (B) if the
                  Bankruptcy Loss Amount has been reduced to zero, the principal
                  portion of any Debt  Service  Reduction  with  respect to such
                  Mortgage Loan;

            (ii)  the  Class  B-4  Prepayment   Percentage  of  all  Unscheduled
                  Principal  Receipts  that were  received  by a  Servicer  with
                  respect  to  such   Mortgage   Loan   during  the   Applicable
                  Unscheduled   Principal   Receipt  Period   relating  to  such
                  Distribution  Date for  each  applicable  type of  Unscheduled
                  Principal Receipt;

            (iii) the Class B-4 Prepayment Percentage of the Scheduled Principal
                  Balance  of  such  Mortgage  Loan  which,   during  the  month
                  preceding the month of such Distribution Date, was repurchased
                  by the Seller pursuant to Section 2.02 or 2.03; and

            (iv)  the Class B-4 Percentage of the excess of the unpaid principal
                  balance of such  Mortgage  Loan  substituted  for a  defective
                  Mortgage  Loan during the month  preceding  the month in which
                  such  Distribution  Date  occurs  over  the  unpaid  principal
                  balance  of such  defective  Mortgage  Loan,  less the  amount
                  allocable  to  the  principal   portion  of  any  unreimbursed
                  Periodic Advances previously made by the applicable  Servicer,
                  the Master Servicer or the Trust  Administrator  in respect of
                  such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Class and such  Distribution  Date, the Class B-4 Optimal  Principal Amount
will equal the lesser of (A) the Class B-4 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-4 Certificates.

            Class B-4 Percentage:  As to any  Distribution  Date,  except as set
forth in the next  sentence,  the percentage  calculated by multiplying  (i) the
Subordinated  Percentage by (ii) a fraction, the numerator of which is the Class
B-4 Principal Balance  (determined as of the  Determination  Date preceding such
Distribution  Date)  and the  denominator  of which is the sum of the  Principal
Balances of the Classes of Class B  Certificates  eligible to receive  principal
distributions  for such  Distribution  Date in accordance with the provisions of
Section 4.01(d).  Except as set forth in Section 4.01(d)(ii),  in the event that
the  Class  B-4  Certificates  are not  eligible  to  receive  distributions  of
principal in accordance  with Section  4.01(d)(i),  the Class B-4 Percentage for
such Distribution Date will be zero.

            Class B-4 Prepayment Percentage: As to any Distribution Date, except
as set forth in the next sentence,  the percentage calculated by multiplying (i)
the  Subordinated  Prepayment  Percentage  by (ii) a fraction,  the numerator of
which is the Class B-4 Principal  Balance  (determined  as of the  Determination
Date preceding such  Distribution  Date) and the denominator of which is the sum
of the  Principal  Balances of the Classes of Class B  Certificates  eligible to
receive  principal  distributions  for such Distribution Date in accordance with
the provisions of Section 4.01(d).  Except as set forth in Section  4.01(d)(ii),
in the  event  that the Class  B-4  Certificates  are not  eligible  to  receive
distributions of principal in accordance with Section 4.01(d)(i),  the Class B-4
Prepayment Percentage for such Distribution Date will be zero.

            Class B-4 Principal Balance: As to the first Determination Date, the
Original Class B-4 Principal Balance.  As of any subsequent  Determination Date,
the lesser of (i) the Original  Class B-4 Principal  Balance less the sum of (a)
all amounts  previously  distributed in respect of the Class B-4 Certificates on
prior  Distribution  Dates  (A)  pursuant  to  Paragraph  sixteenth  of  Section
4.01(a)(i)  and (B) as a result of a Principal  Adjustment  and (b) the Realized
Losses allocated through such  Determination  Date to the Class B-4 Certificates
pursuant  to  Section  4.02(b)  and  (ii) the  Adjusted  Pool  Amount  as of the
preceding  Distribution Date less the sum of the Class A Principal Balance,  the
Class B-1 Principal  Balance,  the Class B-2 Principal Balance and the Class B-3
Principal Balance as of such Determination Date.

            Class B-4 Unpaid Interest  Shortfall:  As to any Distribution  Date,
the amount,  if any, by which the aggregate of the Class B-4 Interest  Shortfall
Amounts for prior Distribution Dates is in excess of the amounts  distributed in
respect of the Class B-4  Certificates on prior  Distribution  Dates pursuant to
Paragraph fifteenth of Section 4.01(a)(i).

            Class B-5 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  B-5 and
Exhibit C hereto.

            Class B-5  Certificateholder:  The registered  holder of a Class B-5
Certificate.

            Class B-5  Distribution  Amount:  As to any  Distribution  Date, any
amount  distributable to the Holders of the Class B-5  Certificates  pursuant to
Paragraphs seventeenth, eighteenth, and nineteenth of Section 4.01(a)(i).

            Class B-5 Interest  Shortfall Amount:  As to any Distribution  Date,
any amount by which the Interest  Accrual  Amount of the Class B-5  Certificates
with respect to such Distribution Date exceeds the amount distributed in respect
of the Class B-5  Certificates on such  Distribution  Date pursuant to Paragraph
seventeenth of Section 4.01(a)(i).

            Class B-5 Optimal Principal Amount: As to any Distribution  Date, an
amount equal to the sum, as to each Outstanding Mortgage Loan, of the product of
(x) the Non-PO  Fraction  with respect to such Mortgage Loan and (y) the sum of:

            (i)   the Class B-5  Percentage of (A) the principal  portion of the
                  Monthly  Payment due on the Due Date occurring in the month of
                  such  Distribution Date on such Mortgage Loan, less (B) if the
                  Bankruptcy Loss Amount has been reduced to zero, the principal
                  portion of any Debt  Service  Reduction  with  respect to such
                  Mortgage Loan;

            (ii)  the  Class  B-5  Prepayment   Percentage  of  all  Unscheduled
                  Principal  Receipts  that were  received  by a  Servicer  with
                  respect  to  such   Mortgage   Loan   during  the   Applicable
                  Unscheduled   Principal   Receipt  Period   relating  to  such
                  Distribution  Date for  each  applicable  type of  Unscheduled
                  Principal Receipt;

            (iii) the Class B-5 Prepayment Percentage of the Scheduled Principal
                  Balance  of  such  Mortgage  Loan  which,   during  the  month
                  preceding the month of such Distribution Date, was repurchased
                  by the Seller pursuant to Section 2.02 or 2.03; and

            (iv)  the Class B-5 Percentage of the excess of the unpaid principal
                  balance of such  Mortgage  Loan  substituted  for a  defective
                  Mortgage  Loan during the month  preceding  the month in which
                  such  Distribution  Date  occurs  over  the  unpaid  principal
                  balance  of such  defective  Mortgage  Loan,  less the  amount
                  allocable  to  the  principal   portion  of  any  unreimbursed
                  Periodic Advances previously made by the applicable  Servicer,
                  the Master Servicer or the Trust  Administrator  in respect of
                  such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Class and such  Distribution  Date, the Class B-5 Optimal  Principal Amount
will equal the lesser of (A) the Class B-5 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-5 Certificates.

            Class B-5 Percentage:  As to any  Distribution  Date,  except as set
forth in the next  sentence,  the percentage  calculated by multiplying  (i) the
Subordinated  Percentage by (ii) a fraction, the numerator of which is the Class
B-5 Principal Balance  (determined as of the  Determination  Date preceding such
Distribution  Date)  and the  denominator  of which is the sum of the  Principal
Balances of the Classes of Class B  Certificates  eligible to receive  principal
distributions  for such  Distribution  Date in accordance with the provisions of
Section 4.01(d).  Except as set forth in Section 4.01(d)(ii),  in the event that
the  Class  B-5  Certificates  are not  eligible  to  receive  distributions  of
principal in accordance  with Section  4.01(d)(i),  the Class B-5 Percentage for
such Distribution Date will be zero.

            Class B-5 Prepayment Percentage: As to any Distribution Date, except
as set forth in the next sentence,  the percentage calculated by multiplying (i)
the  Subordinated  Prepayment  Percentage  by (ii) a fraction,  the numerator of
which is the Class B-5 Principal  Balance  (determined  as of the  Determination
Date preceding such  Distribution  Date) and the denominator of which is the sum
of the  Principal  Balances of the Classes of Class B  Certificates  eligible to
receive  principal  distributions  for such Distribution Date in accordance with
the provisions of Section 4.01(d).  Except as set forth in Section  4.01(d)(ii),
in the  event  that the Class  B-5  Certificates  are not  eligible  to  receive
distributions of principal in accordance with Section 4.01(d)(i),  the Class B-5
Prepayment Percentage for such Distribution Date will be zero.

            Class B-5 Principal Balance: As to the first Determination Date, the
Original Class B-5 Principal Balance.  As of any subsequent  Determination Date,
the lesser of (i) the Original  Class B-5 Principal  Balance less the sum of (a)
all amounts  previously  distributed in respect of the Class B-5 Certificates on
prior  Distribution  Dates (A)  pursuant  to  Paragraph  nineteenth  of  Section
4.01(a)(i)  and (B) as a result of a Principal  Adjustment  and (b) the Realized
Losses allocated through such  Determination  Date to the Class B-5 Certificates
pursuant  to  Section  4.02(b)  and  (ii) the  Adjusted  Pool  Amount  as of the
preceding  Distribution Date less the sum of the Class A Principal Balance,  the
Class B-1  Principal  Balance,  the Class B-2 Principal  Balance,  the Class B-3
Principal Balance and the Class B-4 Principal  Balance as of such  Determination
Date.

            Class B-5 Unpaid Interest  Shortfall:  As to any Distribution  Date,
the amount,  if any, by which the aggregate of the Class B-5 Interest  Shortfall
Amounts for prior Distribution Dates is in excess of the amounts  distributed in
respect of the Class B-5  Certificates on prior  Distribution  Dates pursuant to
Paragraph eighteenth of Section 4.01(a)(i).

            Class B-6 Certificate:  Any one of the Certificates  executed by the
Trust  Administrator  and  authenticated  by  the  Trust  Administrator  or  the
Authenticating  Agent in  substantially  the form set forth in  Exhibit  B-6 and
Exhibit C hereto.

            Class B-6  Certificateholder:  The registered  holder of a Class B-6
Certificate.

            Class B-6  Distribution  Amount:  As to any  Distribution  Date, any
amount  distributable to the Holders of the Class B-6  Certificates  pursuant to
Paragraphs twentieth, twenty-first and twenty-second of Section 4.01(a)(i).

            Class B-6 Interest  Shortfall Amount:  As to any Distribution  Date,
any amount by which the Interest  Accrual  Amount of the Class B-6  Certificates
with respect to such Distribution Date exceeds the amount distributed in respect
of the Class B-6  Certificates on such  Distribution  Date pursuant to Paragraph
twentieth of Section 4.01(a)(i).

            Class B-6 Optimal Principal Amount: As to any Distribution  Date, an
amount equal to the sum, as to each Outstanding Mortgage Loan, of the product of
(x) the Non-PO  Fraction  with respect to such Mortgage Loan and (y) the sum of:

            (i)   the Class B-6  Percentage of (A) the principal  portion of the
                  Monthly  Payment due on the Due Date occurring in the month of
                  such  Distribution Date on such Mortgage Loan, less (B) if the
                  Bankruptcy Loss Amount has been reduced to zero, the principal
                  portion of any Debt  Service  Reduction  with  respect to such
                  Mortgage Loan;

            (ii)  the  Class  B-6  Prepayment   Percentage  of  all  Unscheduled
                  Principal  Receipts  that were  received  by a  Servicer  with
                  respect  to  such   Mortgage   Loan   during  the   Applicable
                  Unscheduled   Principal   Receipt  Period   relating  to  such
                  Distribution  Date for  each  applicable  type of  Unscheduled
                  Principal Receipt;

            (iii) the Class B-6 Prepayment Percentage of the Scheduled Principal
                  Balance  of  such  Mortgage  Loan  which,   during  the  month
                  preceding the month of such Distribution Date, was repurchased
                  by the Seller pursuant to Section 2.02 or 2.03; and

            (iv)  the Class B-6 Percentage of the excess of the unpaid principal
                  balance of such  Mortgage  Loan  substituted  for a  defective
                  Mortgage  Loan during the month  preceding  the month in which
                  such  Distribution  Date  occurs  over  the  unpaid  principal
                  balance  of such  defective  Mortgage  Loan,  less the  amount
                  allocable  to  the  principal   portion  of  any  unreimbursed
                  Periodic Advances previously made by the applicable  Servicer,
                  the Master Servicer or the Trust  Administrator  in respect of
                  such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Class and such  Distribution  Date, the Class B-6 Optimal  Principal Amount
will equal the lesser of (A) the Class B-6 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-6 Certificates.

            Class B-6 Percentage:  As to any  Distribution  Date,  except as set
forth in the next  sentence,  the percentage  calculated by multiplying  (i) the
Subordinated  Percentage by (ii) a fraction, the numerator of which is the Class
B-6 Principal Balance  (determined as of the  Determination  Date preceding such
Distribution  Date)  and the  denominator  of which is the sum of the  Principal
Balances of the Classes of Class B  Certificates  eligible to receive  principal
distributions  for such  Distribution  Date in accordance with the provisions of
Section 4.01(d).  Except as set forth in Section 4.01(d)(ii),  in the event that
the  Class  B-6  Certificates  are not  eligible  to  receive  distributions  of
principal in accordance with the provisions of Section 4.01(d)(i), the Class B-6
Percentage for such Distribution Date will be zero.

            Class B-6 Prepayment Percentage: As to any Distribution Date, except
as set forth in the next sentence,  the percentage calculated by multiplying (i)
the  Subordinated  Prepayment  Percentage  by (ii) a fraction,  the numerator of
which is the Class B-6 Principal  Balance  (determined  as of the  Determination
Date preceding such  Distribution  Date) and the denominator of which is the sum
of the  Principal  Balances of the Classes of Class B  Certificates  eligible to
receive  principal  distributions  for such Distribution Date in accordance with
the provisions of Section 4.01(d).  Except as set forth in Section  4.01(d)(ii),
in the  event  that the Class  B-6  Certificates  are not  eligible  to  receive
distributions  of  principal  in  accordance  with  the  provisions  of  Section
4.01(d)(i),  the Class B-6 Prepayment Percentage for such Distribution Date will
be zero.

            Class B-6 Principal Balance: As to the first Determination Date, the
Original Class B-6 Principal Balance.  As of any subsequent  Determination Date,
the lesser of (i) the Original  Class B-6 Principal  Balance less the sum of (a)
all amounts  previously  distributed in respect of the Class B-6 Certificates on
prior  Distribution  Dates  pursuant  to  Paragraph   twenty-second  of  Section
4.01(a)(i) and (b) the Realized Losses allocated through such Determination Date
to the Class B-6 Certificates  pursuant to Section 4.02(b) and (ii) the Adjusted
Pool  Amount as of the  preceding  Distribution  Date less the Class A Principal
Balance,  the Class B-1 Principal Balance,  the Class B-2 Principal Balance, the
Class B-3 Principal  Balance,  the Class B-4 Principal Balance and the Class B-5
Principal Balance as of such Determination Date.

            Class B-6 Unpaid Interest  Shortfall:  As to any Distribution  Date,
the amount,  if any, by which the aggregate of the Class B-6 Interest  Shortfall
Amounts for prior Distribution Dates is in excess of the amounts  distributed in
respect of the Class B-6  Certificates on prior  Distribution  Dates pursuant to
Paragraph twenty-first of Section 4.01(a)(i).

            Class B-L1  Interest:  A regular  interest in the  Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class B-L2  Interest:  A regular  interest in the  Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class B-L3  Interest:  A regular  interest in the  Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class B-L4  Interest:  A regular  interest in the  Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class B-L5  Interest:  A regular  interest in the  Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Class B-L6  Interest:  A regular  interest in the  Lower-Tier  REMIC
which is held as an asset of the  Upper-Tier  REMIC and is  entitled  to monthly
distributions as provided in Section 4.01(a)(ii) hereof.

            Clearing Agency:  An organization  registered as a "clearing agency"
pursuant to Section 17A of the Securities Exchange Act of 1934, as amended.  The
initial Clearing Agency shall be The Depository Trust Company.

            Clearing  Agency  Indirect  Participant:  A  broker,  dealer,  bank,
financial  institution  or other  Person  that  clears  securities  transactions
through  or  maintains  a  custodial   relationship   with  a  Clearing   Agency
Participant, either directly or indirectly.

            Clearing  Agency  Participant:  A broker,  dealer,  bank,  financial
institution  or other  Person  for whom a  Clearing  Agency  effects  book-entry
transfers of securities deposited with the Clearing Agency.

            Closing Date: The date of initial issuance of the  Certificates,  as
set forth in Section 11.21.

            Code:  The Internal  Revenue Code of 1986, as it may be amended from
time to time, any successor statutes thereto,  and applicable U.S. Department of
the Treasury temporary or final regulations promulgated thereunder.

            Compensating  Interest:  As to any Distribution  Date, the lesser of
(a) the  product  of (i) 1/12th of 0.20% and (ii) the Pool  Scheduled  Principal
Balance  for such  Distribution  Date  and (b) the  Available  Master  Servicing
Compensation for such Distribution Date.

            Component: Any Class A-8 Component or Class A-20 Component.

            Component Rate:  With respect to any Class A-8 IO Component,  0.500%
per annum and with respect to the Class A-8 Accrual Component, 6.500% per annum.
The Class A-20  Components are  principal-only  Components and have no Component
Rate.

            Co-op   Shares:   Shares  issued  by  private   non-profit   housing
corporations.

            Corporate   Trust  Office:   The  principal   office  of  the  Trust
Administrator  or the  Trustee,  as the case may be, at which at any  particular
time its corporate  trust business  shall be  administered,  which office,  with
respect  to the  Trust  Administrator,  at the  date  of the  execution  of this
instrument is located at 230 South Tryon Street, Charlotte, North Carolina 28288
and with respect to the Trustee,  at the date of execution of this instrument is
located at 114 West 47th Street, New York, New York 10036.

            Corresponding Upper-Tier Class, Classes, Component or Components: As
to  the  following   Uncertificated   Lower-Tier  Interests,  the  Corresponding
Upper-Tier Class, Classes, Component or Components, as follows:

                                       Corresponding Upper-Tier Class, Classes,
 Uncertificated Lower-Tier Interest            Component or Components
 ----------------------------------    ----------------------------------------

         Class A-L1 Interest                   Class A-1 Certificates and
                                               Class A-8A IO Component

         Class A-L2 Interest                   Class A-2 Certificates and
                                               Class A-8B IO Component

         Class A-L3 Interest                   Class A-3 Certificates and
                                               Class A-8C IO Component

         Class A-L4 Interest                   Class A-4 Certificates and
                                               Class A-8D IO Component

         Class A-L5 Interest                   Class A-5 Certificates,
                                               Class A-9 Certificates
                                               and Class A-22 Certificates

         Class A-L6 Interest                   Class A-6 Certificates and
                                               Class A-7 Certificates

         Class A-L8 Interest                   Class A-8 Accrual Component

         Class A-L10 Interest                  Class A-10 Certificates,
                                               Class A-11 Certificates,
                                               Class A-17 Certificates,
                                               Class A-18 Certificates,
                                               Class A-19 Certificates

         Class A-L12 Interest                  Class A-12 Certificates and
                                               Class A-13 Certificates

         Class A-L14 Interest                  Class A-14 Certificates and
                                               Class A-15 Certificates

         Class A-L16 Interest                  Class A-16 Certificates and
                                               Class A-21 Certificates

         Class A-L20 Interest                  Class A-20 Certificates

         Class A-LPO Interest                  Class A-PO Certificates

         Class A-LUR Interest                  Class A-R Certificate

         Class B-L1 Interest                   Class B-1 Certificates

         Class B-L2 Interest                   Class B-2 Certificates

         Class B-L3 Interest                   Class B-3 Certificates

         Class B-L4 Interest                   Class B-4 Certificates

         Class B-L5 Interest                   Class B-5 Certificates

         Class B-L6 Interest                   Class B-6 Certificates

            Cross-Over   Date:  The   Distribution   Date  preceding  the  first
Distribution Date on which the Class A Percentage (determined pursuant to clause
(ii) of the definition thereof) equals or exceeds 100%.

            Cross-Over Date Interest Shortfall: With respect to any Distribution
Date that occurs on or after the Cross-Over Date with respect to any Unscheduled
Principal Receipt (other than a Prepayment in Full):

            (A)   in the case where the Applicable Unscheduled Principal Receipt
                  Period is the Mid-Month  Receipt  Period and such  Unscheduled
                  Principal  Receipt is received by the Servicer on or after the
                  Determination  Date in the month  preceding  the month of such
                  Distribution  Date but  prior to the first day of the month of
                  such Distribution Date, the amount of interest that would have
                  accrued  at the Net  Mortgage  Interest  Rate on the amount of
                  such Unscheduled Principal Receipt from the day of its receipt
                  or, if earlier,  its  application by the Servicer  through the
                  last day of the month preceding the month of such Distribution
                  Date; and

            (B)   in the case where the Applicable Unscheduled Principal Receipt
                  Period is the Prior Month Receipt Period and such  Unscheduled
                  Principal Receipt is received by the Servicer during the month
                  preceding the month of such  Distribution  Date, the amount of
                  interest that would have accrued at the Net Mortgage  Interest
                  Rate on the amount of such Unscheduled  Principal Receipt from
                  the day of its receipt or, if earlier,  its application by the
                  Servicer  through  the  last day of the  month  in which  such
                  Unscheduled Principal Receipt is received.

            Current Class A Interest Distribution Amount: As to any Distribution
Date,  the amount  distributed in respect of the Classes of Class A Certificates
and the Premium  Payment  pursuant to Paragraph  first of Section  4.01(a)(i) on
such Distribution Date.

            Current Class B Interest Distribution Amount: As to any Distribution
Date,  the amount  distributed in respect of the Classes of Class B Certificates
pursuant to Paragraphs  fifth,  eighth,  eleventh,  fourteenth,  seventeenth and
twentieth of Section 4.01(a)(i) on such Distribution Date.

            Current Class B-1 Fractional  Interest:  As to any Distribution Date
subsequent to the first Distribution  Date, the percentage  obtained by dividing
the sum of the Principal  Balances of the Class B-2, Class B-3, Class B-4, Class
B-5 and  Class  B-6  Certificates  by the sum of the  Class A  Non-PO  Principal
Balance and the Class B Principal  Balance.  As to the first  Distribution Date,
the Original Class B-1 Fractional Interest.

            Current Class B-2 Fractional  Interest:  As to any Distribution Date
subsequent to the first Distribution  Date, the percentage  obtained by dividing
the sum of the  Principal  Balances of the Class B-3,  Class B-4,  Class B-5 and
Class B-6  Certificates by the sum of the Class A Non-PO  Principal  Balance and
the Class B Principal  Balance.  As to the first Distribution Date, the Original
Class B-2 Fractional Interest.

            Current Class B-3 Fractional  Interest:  As to any Distribution Date
subsequent to the first Distribution  Date, the percentage  obtained by dividing
the sum of the  Principal  Balances  of the Class  B-4,  Class B-5 and Class B-6
Certificates by the sum of the Class A Non-PO Principal  Balance and the Class B
Principal  Balance.  As to the first  Distribution  Date, the Original Class B-3
Fractional Interest.

            Current Class B-4 Fractional  Interest:  As to any Distribution Date
subsequent to the first Distribution  Date, the percentage  obtained by dividing
the sum of the Principal Balances of the Class B-5 and Class B-6 Certificates by
the sum of the  Class A  Non-PO  Principal  Balance  and the  Class B  Principal
Balance.  As to the first  Distribution  Date, the Original Class B-4 Fractional
Interest.

            Current Class B-5 Fractional  Interest:  As to any Distribution Date
subsequent to the first Distribution  Date, the percentage  obtained by dividing
the Principal  Balance of the Class B-6  Certificates  by the sum of the Class A
Non-PO  Principal  Balance  and the Class B Principal  Balance.  As to the first
Distribution Date, the Original Class B-5 Fractional Interest.

            Curtailment:  Any Principal  Prepayment made by a Mortgagor which is
not a Prepayment in Full.

            Custodial Agreement:  The Custodial Agreement,  if any, from time to
time in effect  between the  Custodian  named  therein,  the Seller,  the Master
Servicer  and the Trust  Administrator,  substantially  in the form of Exhibit E
hereto,  as the same may be amended or modified  from time to time in accordance
with the terms thereof.

            Custodial P&I Account: The Custodial P&I Account, as defined in each
of the Servicing Agreements,  with respect to the Mortgage Loans. In determining
whether the Custodial P&I Account under any Servicing  Agreement is "acceptable"
to the Master  Servicer  (as may be  required  by the  definition  of  "Eligible
Account"  contained in the  Servicing  Agreements),  the Master  Servicer  shall
require  that  any  such  account  shall  be  acceptable  to each of the  Rating
Agencies.

            Custodian:  Initially,  the Trust Administrator,  and thereafter the
Custodian,  if any, hereafter appointed by the Trust  Administrator  pursuant to
Section 8.13, or its successor in interest  under the Custodial  Agreement.  The
Custodian  may (but need not) be the  Trustee,  the Trust  Administrator  or any
Person  directly or  indirectly  controlling  or  controlled  by or under common
control  of either of them.  Neither a  Servicer,  nor the Seller nor the Master
Servicer nor any Person  directly or indirectly  controlling or controlled by or
under common control with any such Person may be appointed Custodian.

            Cut-Off Date: The first day of the month of initial  issuance of the
Certificates as set forth in Section 11.02.

            Cut-Off  Date  Aggregate  Principal  Balance:  The  aggregate of the
Cut-Off Date Principal Balances of the Mortgage Loans is as set forth in Section
11.03.

            Cut-Off Date Principal Balance: As to each Mortgage Loan, its unpaid
principal  balance as of the close of business on the Cut-Off  Date (but without
giving effect to any Unscheduled  Principal  Receipts received or applied on the
Cut-Off Date), reduced by all payments of principal due on or before the Cut-Off
Date and not paid, and increased by scheduled  monthly payments of principal due
after the Cut-Off  Date but  received  by the related  Servicer on or before the
Cut-Off Date.

            DCR:  Duff  and  Phelps  Credit  Rating  Co.,  or its  successor  in
interest.

            Debt  Service  Reduction:  With  respect  to any  Mortgage  Loan,  a
reduction in the scheduled  Monthly Payment for such Mortgage Loan by a court of
competent  jurisdiction in a proceeding under the Bankruptcy Code, except such a
reduction constituting a Deficient Valuation.

            Deceased  Holder: A Beneficial Owner of a Class A-12 Certificate who
was living at the time such interest was acquired, whose death is deemed to have
occurred  pursuant  to  Section  4.07(b),  and with  respect  to which the Trust
Administrator  has  received  through  the  Clearing  Agency  evidence  of death
satisfactory  to the Trust  Administrator  and any tax waivers  requested by the
Trustee.

            Deficient Valuation:  With respect to any Mortgage Loan, a valuation
by a court of competent jurisdiction of the Mortgaged Property in an amount less
than the then-outstanding indebtedness under the Mortgage Loan, or any reduction
in the amount of principal to be paid in connection  with any scheduled  Monthly
Payment that results in a permanent forgiveness of principal, which valuation or
reduction results from a proceeding under the Bankruptcy Code.

            Definitive Certificates: As defined in Section 5.01(b).

            Denomination:  The  amount,  if any,  specified  on the face of each
Certificate (other than the Class A-21 Certificates)  representing the principal
portion of the  Cut-Off  Date  Aggregate  Principal  Balance  evidenced  by such
Certificate. As to the Class A-21 Certificates, the amount specified on the face
of such Certificate representing the portion of the Original Class A-21 Notional
Amount.

            Determination  Date:  The 17th day of the month in which the related
Distribution  Date  occurs,  or if such  17th  day is not a  Business  Day,  the
Business Day preceding such 17th day.

            Discount Mortgage Loan: A Mortgage Loan with a Net Mortgage Interest
Rate of less than 6.500%.

            Distribution Date: The 25th day of any month, beginning in the month
following the month of initial issuance of the Certificates, or if such 25th day
is not a Business Day, the Business Day following such 25th day.

            Dual Collateral Pledge Agreement:  As defined in the NOVUS Servicing
Agreement.

            Due Date: With respect to any Mortgage Loan, the day of the month in
which the Monthly Payment on such Mortgage Loan is scheduled to be paid.

            Eligible Account:  One or more accounts (i) that are maintained with
a depository institution (which may be the Master Servicer) whose long-term debt
obligations  (or,  in the case of a  depository  institution  which is part of a
holding company structure, the long-term debt obligations of such parent holding
company)  at the  time of  deposit  therein  are  rated  at  least  "AA" (or the
equivalent) by each of the Rating Agencies, (ii) the deposits in which are fully
insured  by the FDIC  through  either  the Bank  Insurance  Fund or the  Savings
Association  Insurance Fund, (iii) the deposits in which are insured by the FDIC
through either the Bank Insurance Fund or the Savings Association Insurance Fund
(to the  limit  established  by the FDIC) and the  uninsured  deposits  in which
accounts are otherwise secured,  as evidenced by an Opinion of Counsel delivered
to the Trust Administrator,  such that the Trust Administrator, on behalf of the
Certificateholders  has a claim with respect to the funds in such  accounts or a
perfected  first security  interest  against any collateral  securing such funds
that  is  superior  to  claims  of any  other  depositors  or  creditors  of the
depository  institution  with which such accounts are maintained,  (iv) that are
trust  accounts  maintained  with the trust  department  of a  federal  or state
chartered  depository  institution  or trust  company  acting  in its  fiduciary
capacity  or (v) such other  account  that is  acceptable  to each of the Rating
Agencies and would not cause the Trust Estate to fail to qualify as two separate
REMICs  or  result  in the  imposition  of any  federal  tax  on  either  of the
Upper-Tier REMIC or the Lower-Tier REMIC.

            Eligible Investments:  At any time, any one or more of the following
obligations  and  securities  which shall mature not later than the Business Day
preceding the  Distribution  Date next  succeeding the date of such  investment,
provided that such investments continue to qualify as "cash flow investments" as
defined in Code Section 860G(a)(6):

            (i)   obligations  of the  United  States of  America  or any agency
                  thereof,  provided  such  obligations  are  backed by the full
                  faith and credit of the United States of America;

            (ii)  general obligations of or obligations  guaranteed by any state
                  of the United  States of America or the  District  of Columbia
                  receiving the highest  short-term or highest  long-term rating
                  of each  Rating  Agency,  or such  lower  rating  as would not
                  result in the  downgrading  or  withdrawal  of the rating then
                  assigned to any of the Certificates by either Rating Agency or
                  result  in any of such  rated  Certificates  being  placed  on
                  credit review status (other than for possible  upgrading) (or,
                  in the case of the Class  A-12  Certificates,  without  giving
                  effect to the  guaranty  provided by  Financial  Security)  by
                  either Rating Agency;

            (iii) commercial or finance company paper which is then rated in the
                  highest  long-term  commercial or finance company paper rating
                  category  of each  Rating  Agency  or the  highest  short-term
                  rating  category of each Rating  Agency,  or such lower rating
                  category as would not result in the  downgrading or withdrawal
                  of the rating  then  assigned  to any of the  Certificates  by
                  either   Rating   Agency  or  result  in  any  of  such  rated
                  Certificates  being placed on credit review status (other than
                  for  possible  upgrading)  (or,  in the case of the Class A-12
                  Certificates,  without giving effect to the guaranty  provided
                  by Financial Security) by either Rating Agency;

            (iv)  certificates  of  deposit,  demand or time  deposits,  federal
                  funds  or  banker's   acceptances  issued  by  any  depository
                  institution  or trust company  incorporated  under the laws of
                  the  United  States or of any state  thereof  and  subject  to
                  supervision  and  examination  by federal and/or state banking
                  authorities,  provided that the  commercial  paper and/or debt
                  obligations  of such  depository  institution or trust company
                  (or in the case of the principal  depository  institution in a
                  holding   company  system,   the  commercial   paper  or  debt
                  obligations  of such  holding  company)  are then rated in the
                  highest  short-term or the highest  long-term  rating category
                  for such  securities of each of the Rating  Agencies,  or such
                  lower rating categories as would not result in the downgrading
                  or  withdrawal  of  the  rating  then  assigned  to any of the
                  Certificates  by either Rating Agency or result in any of such
                  rated Certificates being placed on credit review status (other
                  than for possible  upgrading) (or, in the case of the Class-12
                  Certificates,  without giving effect to the guaranty  provided
                  by Financial Security) by either Rating Agency;

            (v)   guaranteed   reinvestment   agreements  issued  by  any  bank,
                  insurance  company  or other  corporation  acceptable  to each
                  Rating Agency at the time of the issuance of such agreements;

            (vi)  repurchase  agreements  on  obligations  with  respect  to any
                  security  described  in clauses (i) or (ii) above or any other
                  security issued or guaranteed by an agency or  instrumentality
                  of the United  States of America,  in either case entered into
                  with a  depository  institution  or trust  company  (acting as
                  principal) described in (iv) above;

            (vii) securities  (other  than  stripped  bonds or  stripped  coupon
                  securities)  bearing  interest or sold at a discount issued by
                  any  corporation  incorporated  under  the laws of the  United
                  States of America or any state thereof  which,  at the time of
                  such investment or contractual  commitment  providing for such
                  investment,  are then rated in the highest  short-term  or the
                  highest long-term rating category by each Rating Agency, or in
                  such  lower  rating  category  as  would  not  result  in  the
                  downgrading  or  withdrawal of the rating then assigned to any
                  of the  Certificates  by either Rating Agency or result in any
                  of such  rated  Certificates  being  placed on  credit  review
                  status (other than for possible upgrading) (or, in the case of
                  the Class  A-12  Certificates,  without  giving  effect to the
                  guaranty  provided by  Financial  Security)  by either  Rating
                  Agency; and

            (viii)such other  investments  acceptable  to each Rating  Agency as
                  would  not  result  in  the  downgrading  of the  rating  then
                  assigned to the Certificates by either Rating Agency or result
                  in any of such  rated  Certificates  being  placed  on  credit
                  review status (other than for possible  upgrading) (or, in the
                  case of the Class A-12 Certificates,  without giving effect to
                  the guaranty provided by Financial  Security) by either Rating
                  Agency.

            In no event shall an  instrument  be an Eligible  Investment if such
instrument  evidences either (i) a right to receive only interest  payments with
respect to the obligations  underlying such  instrument,  or (ii) both principal
and interest  payments derived from  obligations  underlying such instrument and
the interest and principal  payments with respect to such  instrument  provide a
yield to maturity at the date of investment of greater than 120% of the yield to
maturity at par of such underlying obligations.

            ERISA:  The Employee  Retirement  Income  Security  Act of 1974,  as
amended.

            ERISA Prohibited Holder: As defined in Section 5.02(d).

            Errors and  Omissions  Policy:  As defined in each of the  Servicing
Agreements.

            Event of Default: Any of the events specified in Section 7.01.

            Excess  Bankruptcy Loss: With respect to any  Distribution  Date and
any  Mortgage  Loan as to  which a  Bankruptcy  Loss is  realized  in the  month
preceding the month of such  Distribution  Date,  (i) if the  Aggregate  Current
Bankruptcy   Losses  with   respect  to  such   Distribution   Date  exceed  the
then-applicable Bankruptcy Loss Amount, then the portion of such Bankruptcy Loss
represented by the ratio of (a) the excess of the Aggregate  Current  Bankruptcy
Losses  over the  then-applicable  Bankruptcy  Loss  Amount,  divided by (b) the
Aggregate Current  Bankruptcy Losses or (ii) if the Aggregate Current Bankruptcy
Losses  with  respect  to such  Distribution  Date are less than or equal to the
then-applicable  Bankruptcy Loss Amount, then zero. In addition,  any Bankruptcy
Loss occurring  with respect to a Mortgage Loan on or after the Cross-Over  Date
will be an Excess Bankruptcy Loss.

            Excess  Fraud Loss:  With respect to any  Distribution  Date and any
Mortgage  Loan as to which a Fraud Loss is realized in the month  preceding  the
month of such Distribution  Date, (i) if the Aggregate Current Fraud Losses with
respect to such Distribution Date exceed the then-applicable  Fraud Loss Amount,
then the portion of such Fraud Loss  represented  by the ratio of (a) the excess
of the  Aggregate  Current  Fraud  Losses  over the  then-applicable  Fraud Loss
Amount,  divided  by (b) the  Aggregate  Current  Fraud  Losses,  or (ii) if the
Aggregate  Current Fraud Losses with respect to such  Distribution Date are less
than or equal to the then-applicable  Fraud Loss Amount, then zero. In addition,
any  Fraud  Loss  occurring  with  respect  to a  Mortgage  Loan on or after the
Cross-Over Date will be an Excess Fraud Loss.

            Excess Special Hazard Loss:  With respect to any  Distribution  Date
and any Mortgage Loan as to which a Special Hazard Loss is realized in the month
preceding the month of such  Distribution  Date,  (i) if the  Aggregate  Current
Special  Hazard  Losses  with  respect  to such  Distribution  Date  exceed  the
then-applicable  Special  Hazard Loss  Amount,  then the portion of such Special
Hazard Loss represented by the ratio of (a) the excess of the Aggregate  Current
Special  Hazard  Losses over the  then-applicable  Special  Hazard Loss  Amount,
divided by (b) the  Aggregate  Current  Special  Hazard  Losses,  or (ii) if the
Aggregate  Current Special Hazard Losses with respect to such  Distribution Date
are less than or equal to the  then-applicable  Special Hazard Loss Amount, then
zero. In addition,  any Special Hazard Loss occurring with respect to a Mortgage
Loan on or after the Cross-Over Date will be an Excess Special Hazard Loss.

            Exhibit F-1 Mortgage Loan:  Any of the Mortgage Loans  identified in
Exhibit  F-1  hereto,  as  such  Exhibit  may be  amended  from  time to time in
connection with a substitution  pursuant to Section 2.02, which Mortgage Loan is
serviced in locations other than Frederick, Maryland under the Norwest Servicing
Agreement.

            Exhibit F-2 Mortgage Loan:  Any of the Mortgage Loans  identified in
Exhibit  F-2  hereto,  as  such  Exhibit  may be  amended  from  time to time in
connection with a substitution  pursuant to Section 2.02, which Mortgage Loan is
serviced in Frederick, Maryland under the Norwest Servicing Agreement.

            Exhibit F-3 Mortgage Loan:  Any of the Mortgage Loans  identified in
Exhibit  F-3  hereto,  as  such  Exhibit  may be  amended  from  time to time in
connection with a substitution  pursuant to Section 2.02, which Mortgage Loan is
serviced under an Other Servicing Agreement.

            FDIC:  The Federal  Deposit  Insurance  Corporation or any successor
thereto.

            FHLMC:  The Federal Home Loan Mortgage  Corporation or any successor
thereto.

            Fidelity Bond: As defined in each of the Servicing Agreements.

            Final  Distribution  Date: The Distribution  Date on which the final
distribution in respect of the Certificates is made pursuant to Section 9.01.

            Final Scheduled Maturity Date: The Final Scheduled Maturity Date for
the Class A-1, Class A-2, Class A-3, Class A-4, Class A-5, Class A-6, Class A-7,
Class A-8,  Class A-9, Class A-10,  Class A-11,  Class A-12,  Class A-13,  Class
A-14,  Class A-15,  Class A-16,  Class A-17, Class A-18, Class A-19, Class A-20,
Class A-21, Class A-22, Class A-PO, Class A-R, Class A-LR, Class B-1, Class B-2,
Class B-3,  Class B-4,  Class B-5 and Class B-6  Certificates  is July 25,  2029
which corresponds to the "latest possible maturity date" for purposes of Section
860G(a)(1) of the Internal Revenue Code of 1986, as amended.

            Financial  Security:  Financial  Security Assurance Inc., a monoline
insurance company  incorporated  under the laws of the State of New York, or any
successor thereto.

            Financial  Security  Contact Person:  The officer  designated by the
Master Servicer to provide information to Financial Security pursuant to Section
4.08(g).  The initial Financial  Security Contact Person is appointed in Section
11.27.

            Financial Security Default:  The existence and continuance of any of
the following:

            (a)  Financial  Security  fails to make a payment  required  under a
      policy in accordance with its terms;

            (b) Financial  Security (A) files any petition or commences any case
      or proceeding under any provision or similar federal or state law relating
      to insolvency, bankruptcy, rehabilitation,  liquidation or reorganization,
      (B) makes a general  assignment for the benefit of its  creditors,  or (C)
      has an order  for  relief  entered  against  it under  the  United  States
      Bankruptcy   Code  or  any  similar  federal  or  state  law  relating  to
      insolvency,  bankruptcy,  rehabilitation,  liquidation  or  reorganization
      which is final and nonappealable; or

            (c) a court of competent  jurisdiction,  the New York  Department of
      Insurance  or other  competent  regulatory  authority  enters a final  and
      nonappealable  order,  judgment  or decree  (1)  appointing  a  custodian,
      trustee,  agent  or  receiver  for  Financial  Security  or for all or any
      material  portion  of  its  property  or (2)  authorizing  the  taking  of
      possession  by a  custodian,  trustee,  agent  or  receiver  of  Financial
      Security (or the taking of  possession  of all or any material  portion of
      the property of Financial Security).

            Fixed  Retained  Yield:  The fixed  percentage  of  interest on each
Mortgage Loan with a Mortgage  Interest Rate greater than the sum of (a) 6.500%,
(b) the Servicing Fee Rate and (c) the Master  Servicing Fee Rate, which will be
determined on a loan by loan basis and will equal the Mortgage  Interest Rate on
each Mortgage  Loan minus the sum of (a), (b) and (c),  which is not assigned to
and not part of the Trust Estate.

            Fixed Retained Yield Rate: With respect to each Mortgage Loan, a per
annum rate equal to the greater of (a) zero and (b) the Mortgage  Interest  Rate
on such Mortgage  Loan minus the sum of (i) 6.500%,  (ii) the Servicing Fee Rate
and (iii) the Master Servicing Fee Rate.

            FNMA: Fannie Mae or any successor thereto.

            Foreclosure  Profits:  As to any Distribution  Date, the excess,  if
any,  of (i) Net  Liquidation  Proceeds  in respect of each  Mortgage  Loan that
became a Liquidated  Loan during the Applicable  Unscheduled  Principal  Receipt
Period with respect to Full Unscheduled Principal Receipts for such Distribution
Date over (ii) the sum of the unpaid  principal  balance of each such Liquidated
Loan plus accrued and unpaid interest at the applicable  Mortgage  Interest Rate
on the unpaid principal  balance thereof from the Due Date to which interest was
last paid by the Mortgagor  (or, in the case of a Liquidated  Loan that had been
an REO  Mortgage  Loan,  from the Due Date to which  interest was last deemed to
have been  paid) to the first day of the month in which such  Distribution  Date
occurs.

            Fraud Loss:  A  Liquidated  Loan Loss as to which there was fraud in
the origination of such Mortgage Loan.

            Fraud Loss  Amount:  As of any  Distribution  Date after the Cut-Off
Date an amount equal to: (X) prior to the first  anniversary of the Cut-Off Date
an amount equal to  $17,001,395.14  minus the  aggregate  amount of Fraud Losses
allocated  solely to the Class B Certificates in accordance with Section 4.02(a)
since the Cut-Off Date, and (Y) from the first through fifth  anniversary of the
Cut-Off  Date, an amount equal to (1) the lesser of (a) the Fraud Loss Amount as
of the  most  recent  anniversary  of the  Cut-Off  Date  and (b)  1.00%  of the
aggregate  outstanding  principal balance of all of the Mortgage Loans as of the
most recent anniversary of the Cut-Off Date minus (2) the Fraud Losses allocated
solely to the Class B Certificates  in accordance with Section 4.02(a) since the
most recent anniversary of the Cut-Off Date. On and after the Cross-Over Date or
after the fifth  anniversary  of the Cut-Off Date the Fraud Loss Amount shall be
zero.

            Full  Unscheduled   Principal  Receipt:  Any  Unscheduled  Principal
Receipt  with  respect to a Mortgage  Loan (i) in the amount of the  outstanding
principal  balance of such Mortgage Loan and resulting in the full  satisfaction
of such  Mortgage  Loan or (ii)  representing  Liquidation  Proceeds  other than
Partial Liquidation Proceeds.

            Greenwich Capital: Greenwich Capital Markets, Inc., or its successor
in interest.

            Group I-1 Percentage:  With respect to any Distribution Date, (i)(A)
the product of (x) the sum of the Principal Balances of the Group 1 Certificates
divided  by the  Class A Non-PO  Principal  Balance  and (y) the  Class A Non-PO
Principal  Amount  less (B) the  Group II  Amount  divided  by (ii) the  Group I
Amount, but will be neither greater than 100% nor less than 0%.

            Group I-2 Percentage:  Is the difference  between 100% and the Group
I-1 Percentage.

            Group I Amount:  With respect to any Distribution  Date, the Class A
Non-PO  Principal  Amount  less the sum of the Group II Amount and the Group III
Amount.

            Group I Mortgage  Loans:  All Mortgage Loans other than the Group II
and Group III Mortgage Loans.

            Group I Scheduled  Principal  Amount:  The sum for each  outstanding
Group I Mortgage Loan  (including  each defaulted  Group I Mortgage Loan,  other
than a Liquidated Loan, with respect to which the related Mortgaged Property has
been acquired by the Trust Estate) of the product of (A) the Non-PO Fraction for
such Mortgage Loan and (B) the sum of the amounts  described in clauses y(i) and
y(iv) of the definition of Class A Non-PO Optimal Principal Amount,  but without
such amounts being multiplied by the Class A Percentage.

            Group I Unscheduled  Principal Amount:  The sum for each outstanding
Group I Mortgage Loan  (including  each defaulted  Group I Mortgage Loan,  other
than a Liquidated Loan, with respect to which the related Mortgaged Property has
been acquired by the Trust Estate) of the product of (A) the Non-PO Fraction for
such Mortgage Loan and (B) the sum of the amounts described in clauses y(ii) and
y(iii) of the definition of Class A Non-PO Optimal Principal Amount, but without
such amounts being multiplied by the Class A Prepayment Percentage.

            Group II Amount:  With respect to any Distribution Date, the Class A
Non-PO Principal Amount multiplied by a fraction,  the numerator of which is the
Group II  Optimal  Amount  and the  denominator  of which is the  Class A Non-PO
Optimal Principal Amount.

            Group II Mortgage Loans:  The two Mortgage Loans  identified as Nos.
4906133 and 4944998 on the Mortgage  Loan  Schedule or any  Substitute  Mortgage
Loan for either of such Mortgage Loans.

            Group II Optimal Amount:  With respect to any Distribution Date, the
sum for each outstanding  Group II Mortgage Loan (including each defaulted Group
II  Mortgage  Loan,  other than a  Liquidated  Loan,  with  respect to which the
related Mortgaged Property has been acquired by the Trust Estate) of the product
of (A) the Non-PO  Fraction  for such Group II Mortgage  Loan and (B) the sum of
the amounts described in clauses y(i) through y(iv) of the definition of Class A
Non-PO Optimal Principal Amount.

            Group II Scheduled  Principal  Amount:  The sum for each outstanding
Group II Mortgage Loan (including  each defaulted Group II Mortgage Loan,  other
than a Liquidated Loan, with respect to which the related Mortgaged Property has
been acquired by the Trust Estate) of the product of (A) the Non-PO Fraction for
such Mortgage Loan and (B) the sum of the amounts  described in clauses y(i) and
y(iv) of the definition of Class A Non-PO Optimal Principal Amount,  but without
such amounts being multiplied by the Class A Percentage.

            Group II Unscheduled  Principal Amount: The sum for each outstanding
Group II Mortgage Loan (including  each defaulted Group II Mortgage Loan,  other
than a Liquidated Loan, with respect to which the related Mortgaged Property has
been acquired by the Trust Estate) of the product of (A) the Non-PO Fraction for
such Mortgage Loan and (B) the sum of the amounts described in clauses y(ii) and
y(iii) of the definition of Class A Non-PO Optimal Principal Amount, but without
such amounts being multiplied by the Class A Prepayment Percentage.

            Group III Amount: With respect to any Distribution Date, the Class A
Non-PO Principal Amount multiplied by a fraction,  the numerator of which is the
Group III  Optimal  Amount  and the  denominator  of which is the Class A Non-PO
Optimal Principal Amount.

            Group III Mortgage Loans:  The two Mortgage Loans identified as Nos.
4981400 and 4981357 on the Mortgage  Loan  Schedule or any  Substitute  Mortgage
Loan for either of such Mortgage Loans.

            Group III Optimal Amount: With respect to any Distribution Date, the
sum for each outstanding Group III Mortgage Loan (including each defaulted Group
III  Mortgage  Loan,  other than a  Liquidated  Loan,  with respect to which the
related Mortgaged Property has been acquired by the Trust Estate) of the product
of (A) the Non-PO  Fraction for such Group III Mortgage  Loan and (B) the sum of
the amounts described in clauses y(i) through y(iv) of the definition of Class A
Non-PO Optimal Principal Amount.

            Group III Scheduled  Principal Amount:  The sum for each outstanding
Group III Mortgage Loan (including each defaulted Group III Mortgage Loan, other
than a Liquidated Loan, with respect to which the related Mortgaged Property has
been acquired by the Trust Estate) of the product of (A) the Non-PO Fraction for
such Mortgage Loan and (B) the sum of the amounts  described in clauses y(i) and
y(iv) of the definition of Class A Non-PO Optimal Principal Amount,  but without
such amounts being multiplied by the Class A Percentage.

            Group III Unscheduled Principal Amount: The sum for each outstanding
Group III Mortgage Loan (including each defaulted Group III Mortgage Loan, other
than a Liquidated Loan, with respect to which the related Mortgaged Property has
been acquired by the Trust Estate) of the product of (A) the Non-PO Fraction for
such Mortgage Loan and (B) the sum of the amounts described in clauses y(ii) and
y(iii) of the definition of Class A Non-PO Optimal Principal Amount, but without
such amounts being multiplied by the Class A Prepayment Percentage.

            Group A  Certificates:  The Class A-16,  Class A-17,  Class A-18 and
Class A-19 Certificates.

            Group B  Certificates:  The Class A-10,  Class A-11,  Class A-12 and
Class A-13, Class A-14 and Class A-15 Certificates.

            Group 1  Certificates:  The Class A-1,  Class A-2,  Class A-3, Class
A-4,  Class A-5, Class A-6, Class A-7, Class A-8, Class A-9, Class A-R and Class
A-LR Certificates.

            Group 2 Certificates:  The Class A-10, Class A-11, Class A-12, Class
A-13,  Class A-14,  Class A-15,  Class A-16, Class A-17, Class A-18, Class A-19,
Class A-20 and Class A-22 Certificates.

            Group A/A-20B Priority Amount: For any Distribution Date, the lesser
of (i) the sum of the  Principal  Balances of the Group A  Certificates  and the
Class A-20B Component and (ii) the product of (A) the Class A Percentage and (B)
the sum of (1) the product of (x) the Group A/A-20B Priority  Percentage and (y)
the sum of (a) the  product of the Group I  Scheduled  Principal  Amount and the
Group I-2  Percentage and (b) the Group III Scheduled  Principal  Amount and (2)
the product of (x) the Group A/A-20B  Priority  Percentage,  (y) the  Prepayment
Shift  Percentage  and (z) the sum of (a) the product of the Group I Unscheduled
Principal  Amount and the Group I-2 Percentage and (b) the Group III Unscheduled
Principal Amount.

            Group  A/A-20B  Priority  Percentage:  (i) The sum of the  Principal
Balances of the Group A Certificates  and the Class A-20B  Component  divided by
(ii) the sum of the Principal Balances of the Group 2 Certificates.

            Holder:  See "Certificateholder."

            Independent:  When used with respect to any specified  Person,  such
Person who (i) is in fact independent of the Seller, the Master Servicer and any
Servicer,  (ii) does not have any  direct  financial  interest  or any  material
indirect financial interest in the Seller or the Master Servicer or any Servicer
or in an affiliate of either,  and (iii) is not connected  with the Seller,  the
Master Servicer or any Servicer as an officer, employee, promoter,  underwriter,
trustee,  trust  administrator,  partner,  director or person performing similar
functions.

            Individual Class A-12  Certificate:  A Class A-12 Certificate  which
evidences $1,000 Original Principal Balance.

            Insurance  Policy:  Any insurance or performance  bond relating to a
Mortgage Loan or the Mortgage  Loans,  including any hazard  insurance,  special
hazard  insurance,  flood  insurance,  primary  mortgage  insurance,   mortgagor
bankruptcy bond or title insurance.

            Insurance  Proceeds:  Proceeds  paid by any insurer  pursuant to any
Insurance Policy covering a Mortgage Loan.

            Insured Expenses:  Expenses covered by any Insurance Policy covering
a Mortgage Loan.

            Interest Accrual Amount:  As to any Distribution  Date and any Class
of Class A Certificates (other than the Class A-8, Class A-13, Class A-20, Class
A-21 and Class A-PO Certificates),  (a) the product of (i) 1/12th of the Class A
Pass-Through Rate for such Class and (ii) the Principal Balance of such Class as
of the Determination Date preceding such Distribution Date minus (b) the Class A
Interest  Percentage of such Class of (i) any Non-Supported  Interest  Shortfall
allocated to the Class A  Certificates  and the Premium  Payment with respect to
such  Distribution  Date, (ii) the interest portion of any Excess Special Hazard
Losses,  Excess Fraud Losses and Excess Bankruptcy Losses allocated to the Class
A Certificates  and the Premium Payment with respect to such  Distribution  Date
pursuant  to Section  4.02(e)  and (iii) the  interest  portion of any  Realized
Losses (other than Excess Special Hazard Losses,  Excess Fraud Losses and Excess
Bankruptcy Losses) allocated to the Class A Certificates and the Premium Payment
on or after the  Cross-Over  Date  pursuant  to Section  4.02(e).  The  Interest
Accrual Amount for the Class A-8 Certificates will equal the sum of the Interest
Accrual  Amounts  for the Class  A-8 IO  Components  and the  Class A-8  Accrual
Component.  As to any  Distribution  Date and the Class A-21  Certificates,  the
Class A-21 Interest  Accrual Amount.  The Class A-13,  Class A-20 and Class A-PO
Certificates have no Interest Accrual Amount.

            As to any  Distribution  Date and any Class A-8  Component,  (a) the
product  of (i) 1/12th of the  Component  Rate for such  Component  and (ii) the
Principal Balance of such Component or, in the case of a Class A-8 IO Component,
the  applicable  Class A-8 IO  Notional  Amount,  as of the  Determination  Date
preceding such  Distribution  Date minus (b) the Class A Interest  Percentage of
such  Component of (i) any  Non-Supported  Interest  Shortfall  allocated to the
Class A Certificates  and the Premium Payment with respect to such  Distribution
Date,  (ii) the interest  portion of any Excess Special  Hazard  Losses,  Excess
Fraud Losses and Excess  Bankruptcy Losses allocated to the Class A Certificates
and the Premium  Payment  with  respect to such  Distribution  Date  pursuant to
Section  4.02(e) and (iii) the interest  portion of any Realized  Losses  (other
than Excess  Special Hazard  Losses,  Excess Fraud Losses and Excess  Bankruptcy
Losses)  allocated  to the Class A  Certificates  and the Premium  Payment on or
after the Cross-Over Date pursuant to Section 4.02(e).

            As to any  Distribution  Date and any Class of Class B Certificates,
an amount  equal to (i) the product of 1/12th of the Class B  Pass-Through  Rate
and the Principal Balance of such Class as of the  Determination  Date preceding
such Distribution Date minus (ii) the Class B Interest  Percentage of such Class
of  (x)  any  Non-Supported   Interest  Shortfall   allocated  to  the  Class  B
Certificates with respect to such Distribution Date and (y) the interest portion
of any Excess Special Hazard Losses,  Excess Fraud Losses and Excess  Bankruptcy
Losses allocated to the Class B Certificates  with respect to such  Distribution
Date pursuant to Section 4.02(e).

            LIBOR:  As to any  Distribution  Date,  the  arithmetic  mean of the
London Interbank offered rate quotations for one month Eurodollar  deposits,  as
determined by the Trust  Administrator on the related Rate Determination Date in
accordance with Section 4.10.

            LIBOR  Business  Day:  Any  Business Day on which banks are open for
dealing in foreign  currency  and exchange in London,  England,  the City of New
York and Charlotte, North Carolina.

            LIBOR Certificates:  Any of the Class A-6, Class A-7, Class A-14 and
Class A-15 Certificates.

            Liquidated  Loan: A Mortgage  Loan with respect to which the related
Mortgaged Property has been acquired,  liquidated or foreclosed and with respect
to which the applicable Servicer determines that all Liquidation  Proceeds which
it expects to recover have been recovered.

            Liquidated  Loan Loss:  With respect to any  Distribution  Date, the
aggregate  of the  amount of losses  with  respect to each  Mortgage  Loan which
became a Liquidated  Loan during the Applicable  Unscheduled  Principal  Receipt
Period with respect to Full Unscheduled Principal Receipts for such Distribution
Date,  equal to the  excess of (i) the  unpaid  principal  balance  of each such
Liquidated   Loan,  plus  accrued   interest  thereon  in  accordance  with  the
amortization  schedule  at the time  applicable  thereto at the  applicable  Net
Mortgage Interest Rate from the Due Date as to which interest was last paid with
respect  thereto  through the last day of the month preceding the month in which
such Distribution Date occurs,  over (ii) Net Liquidation  Proceeds with respect
to such Liquidated Loan.

            Liquidation Expenses:  Expenses incurred by a Servicer in connection
with the  liquidation  of any defaulted  Mortgage  Loan or property  acquired in
respect  thereof  (including,  without  limitation,  legal  fees  and  expenses,
committee  or referee  fees,  and,  if  applicable,  brokerage  commissions  and
conveyance taxes), any unreimbursed  advances expended by such Servicer pursuant
to its  Servicing  Agreement  or the  Master  Servicer  or  Trust  Administrator
pursuant hereto respecting the related Mortgage Loan, including any unreimbursed
advances for real property taxes or for property  restoration or preservation of
the  related  Mortgaged  Property.  Liquidation  Expenses  shall not include any
previously  incurred expenses in respect of an REO Mortgage Loan which have been
netted against related REO Proceeds.

            Liquidation  Proceeds:  Amounts  received  by a Servicer  (including
Insurance  Proceeds) in connection  with the  liquidation of defaulted  Mortgage
Loans or property acquired in respect thereof, whether through foreclosure, sale
or otherwise, including payments in connection with such Mortgage Loans received
from the  Mortgagor,  other than  amounts  required to be paid to the  Mortgagor
pursuant  to the terms of the  applicable  Mortgage  or to be applied  otherwise
pursuant to law.

            Living  Holder:  A Beneficial  Owner of the Class A-12  Certificates
other than a Deceased Holder.

            Loan-to-Value  Ratio:  The ratio,  expressed  as a  percentage,  the
numerator of which is the  principal  balance of a particular  Mortgage  Loan at
origination  and the  denominator  of which is the  lesser of (x) the  appraised
value of the related Mortgaged Property  determined in the appraisal used by the
originator  at the time of  origination  of such Mortgage  Loan,  and (y) if the
Mortgage is originated in connection with a sale of the Mortgaged Property,  the
sale price for such Mortgaged Property.

            Lower-Tier Distribution Amount: As defined in Section 4.01(a).

            Lower-Tier  REMIC:  One of two separate REMICs  comprising the Trust
Estate,  the assets of which  consist of the  Mortgage  Loans  (other than Fixed
Retained  Yield),  such  amounts  as  shall  from  time  to  time be held in the
Certificate Account (other than Fixed Retained Yield), the Rounding Account, the
insurance  policies,  if any,  relating to a Mortgage  Loan and  property  which
secured a Mortgage  Loan and which has been acquired by  foreclosure  or deed in
lieu of foreclosure, and the rights of the Trust Administrator under the Policy.
None of the Reserve Fund, the Policy or the Policy Payment Account shall be part
of the Lower-Tier REMIC.

            Master Servicer:  Norwest Bank Minnesota,  National Association,  or
its successor in interest.

            Master  Servicing  Fee:  With respect to any  Mortgage  Loan and any
Distribution  Date, the fee payable monthly to the Master  Servicer  pursuant to
Section 6.05 equal to a fixed percentage  (expressed as a per annum rate) of the
unpaid principal balance of such Mortgage Loan.

            Master Servicing Fee Rate: As set forth in Section 11.26.

            Mid-Month Receipt Period:  With respect to each  Distribution  Date,
the one month period beginning on the Determination Date (or, in the case of the
first Distribution  Date, from and including the Cut-Off-Date)  occurring in the
calendar month  preceding the month in which such  Distribution  Date occurs and
ending on the day preceding the  Determination  Date immediately  preceding such
Distribution Date.

            MLCC  Additional  Collateral:  As  defined  in  the  MLCC  Servicing
Agreement.

            MLCC  Additional  Collateral  Mortgage Loans: As defined in the MLCC
Servicing Agreement.

            MLCC  Mortgage  Loan Purchase  Agreement:  The master  mortgage loan
purchase  agreement  dated as of April 1,  1998  between  Merrill  Lynch  Credit
Corporation, as seller, and Norwest Funding, Inc., as purchaser.

            MLCC  Servicing  Agreement:  The  Servicing  Agreement  executed  by
Merrill Lynch Credit Corporation, as Servicer.

            MLCC Surety Bond:  The Surety Bond, as defined in the MLCC Servicing
agreement.

            Month End Interest:  As defined in each Servicing  Agreement or with
respect to the MLCC Servicing  Agreement,  the amount  defined as  "Compensating
Interest".

            Monthly Payment: As to any Mortgage Loan (including any REO Mortgage
Loan) and any Due Date,  the payment of  principal  and  interest due thereon in
accordance with the amortization  schedule at the time applicable thereto (after
adjustment for any Curtailments and Deficient Valuations occurring prior to such
Due Date but before any adjustment to such amortization schedule, other than for
Deficient  Valuations,  by reason of any bankruptcy or similar proceeding or any
moratorium or similar waiver or grace period).

            Mortgage: The mortgage, deed of trust or other instrument creating a
first lien on Mortgaged  Property  securing a Mortgage  Note  together  with any
Mortgage Loan Rider, if applicable.

            Mortgage  100sm Pledge  Agreement:  As defined in the MLCC Servicing
Agreement.

            Mortgage  Interest Rate: As to any Mortgage Loan, the per annum rate
at which interest accrues on the unpaid  principal  balance thereof as set forth
in the related  Mortgage  Note,  which rate is as indicated on the Mortgage Loan
Schedule.

            Mortgage  Loan  Purchase  Agreement:   The  mortgage  loan  purchase
agreement dated as of June 29, 1999 between Norwest Mortgage, as seller, and the
Seller, as purchaser.

            Mortgage Loan Rider: The standard  FNMA/FHLMC riders to the Mortgage
Note  and/or  Mortgage  riders  required  when  the  Mortgaged   Property  is  a
condominium unit or a unit in a planned unit development.

            Mortgage Loan Schedule:  The list of the Mortgage Loans  transferred
to the Trust  Administrator  on the Closing Date as part of the Trust Estate and
attached  hereto  as  Exhibits  F-1,  F-2 and F-3,  which  list  may be  amended
following  the  Closing  Date upon  conveyance  of a  Substitute  Mortgage  Loan
pursuant to Section 2.02 or 2.03 and which list shall set forth at a minimum the
following  information  of the close of business on the Cut-Off  Date (or,  with
respect to Substitute  Mortgage Loans, as of the close of business on the day of
substitution) as to each Mortgage Loan:

            (i)   the Mortgage Loan identifying number;

            (ii)  the city, state and zip code of the Mortgaged Property;

            (iii) the type of property;

            (iv)  the Mortgage Interest Rate;

            (v)   the Net Mortgage Interest Rate;

            (vi)  the Monthly Payment;

            (vii) the original number of months to maturity;

            (viii)the scheduled maturity date;

            (ix)  the Cut-Off Date Principal Balance;

            (x)   the Loan-to-Value Ratio at origination;

            (xi)  whether such Mortgage Loan is a Subsidy Loan;

            (xii) whether  such  Mortgage  Loan is covered  by primary  mortgage
                  insurance;

            (xiii)the Servicing Fee Rate;

            (xiv) the Master Servicing Fee Rate;

            (v)   Fixed Retained Yield, if applicable; and

            (vi)  for each Exhibit F-3 Mortgage  Loan,  the name of the Servicer
                  with respect thereto.

            Such schedule may consist of multiple reports that  collectively set
forth all of the information required.

            Mortgage Loans:  Each of the mortgage loans transferred and assigned
to the Trust  Administrator on the Closing Date pursuant to Section 2.01 and any
mortgage loans  substituted  therefor  pursuant to Section 2.02 or 2.03, in each
case as from time to time are included in the Trust Estate as  identified in the
Mortgage Loan Schedule.

            Mortgage Note: The note or other evidence of indebtedness evidencing
the  indebtedness of a Mortgagor under a Mortgage Loan together with any related
Mortgage Loan Riders, if applicable.

            Mortgaged  Property:  The property subject to a Mortgage,  which may
include Co-op Shares or residential long-term leases.

            Mortgagor: The obligor on a Mortgage Note.

            Net Foreclosure Profits: As to any Distribution Date, the amount, if
any,  by  which  (i)  Aggregate   Foreclosure   Profits  with  respect  to  such
Distribution  Date exceed  (ii)  Liquidated  Loan  Losses  with  respect to such
Distribution Date.

            Net  Liquidation  Proceeds:  As  to  any  defaulted  Mortgage  Loan,
Liquidation Proceeds net of Liquidation Expenses.

            Net Mortgage  Interest  Rate:  With respect to each Mortgage Loan, a
rate equal to (i) the Mortgage  Interest  Rate on such  Mortgage Loan minus (ii)
the sum of (a) the  Servicing  Fee Rate,  as set  forth in  Section  11.25  with
respect to such Mortgage Loan,  (b) the Master  Servicing Fee Rate, as set forth
in Section 11.26 with respect to such  Mortgage Loan and (c) the Fixed  Retained
Yield Rate,  if any,  with respect to such Mortgage  Loan.  Any regular  monthly
computation of interest at such rate shall be based upon annual interest at such
rate on the applicable amount divided by twelve.

            Net REO Proceeds:  As to any REO Mortgage  Loan, REO Proceeds net of
any related expenses of the Servicer.

            Non-permitted Foreign Holder: As defined in Section 5.02(d).

            Non-PO  Fraction:  With respect to any Mortgage  Loan, the lesser of
(i) 1.00 and (ii) the quotient  obtained by dividing  the Net Mortgage  Interest
Rate for such Mortgage Loan by 6.500%.

            Nonrecoverable Advance: Any portion of a Periodic Advance previously
made or  proposed  to be made in respect  of a Mortgage  Loan which has not been
previously  reimbursed  to the  Servicer,  the  Master  Servicer  or  the  Trust
Administrator,  as the case may be, and which the Servicer,  the Master Servicer
or the Trust  Administrator  determines  will not,  or in the case of a proposed
Periodic Advance would not, be ultimately  recoverable from Liquidation Proceeds
or other recoveries in respect of the related  Mortgage Loan. The  determination
by the Servicer,  the Master Servicer or the Trust Administrator (i) that it has
made a Nonrecoverable  Advance or (ii) that any proposed  Periodic  Advance,  if
made,  would  constitute  a  Nonrecoverable  Advance,  shall be  evidenced by an
Officer's  Certificate  of the  Servicer  delivered  to the Master  Servicer for
redelivery to the Trust  Administrator or, in the case of a Master Servicer or a
Trust  Administrator  determination,  an  Officer's  Certificate  of the  Master
Servicer  or the Trust  Administrator  delivered  to the  Trustee,  in each case
detailing the reasons for such determination.

            Non-Supported  Interest Shortfall:  With respect to any Distribution
Date, the excess, if any, of the aggregate  Prepayment Interest Shortfall on the
Mortgage  Loans over the  aggregate  Compensating  Interest with respect to such
Distribution  Date. With respect to each Distribution Date occurring on or after
the Cross-Over Date, the Non-Supported Interest Shortfall determined pursuant to
the preceding  sentence will be increased by the amount of any  Cross-Over  Date
Interest  Shortfall  for such  Distribution  Date.  Any  Non-Supported  Interest
Shortfall  will be  allocated  to (a) the Class A  Certificates  and the Premium
Payment  according  to the  percentage  obtained by dividing  the Class A Non-PO
Principal  Balance by the sum of the Class A Non-PO  Principal  Balance  and the
Class B Principal  Balance  and (b) the Class B  Certificates  according  to the
percentage  obtained by dividing the Class B Principal Balance by the sum of the
Class A Non-PO Principal Balance and the Class B Principal Balance.

            Non-U.S. Person:  As defined in Section 4.01(g).

            Norwest  Mortgage:  Norwest  Mortgage,  Inc.,  or its  successor  in
interest.

            Norwest Mortgage Correspondents: The entities listed on the Mortgage
Loan Schedule, from which Norwest Mortgage purchased the Mortgage Loans.

            Norwest Servicing  Agreement:  The Servicing Agreement providing for
the servicing of the Exhibit F-1 Mortgage  Loans and Exhibit F-2 Mortgage  Loans
initially by Norwest Mortgage.

            Notice  of  Nonpayment:  The  notice  to be  delivered  by the Trust
Administrator to Financial  Security with respect to any Distribution Date as to
which there is a Class A-12 Distribution Deficiency,  which shall be in the form
attached to the Policy.

            NOVUS Additional Collateral:  The Additional Collateral,  as defined
in the NOVUS Servicing Agreement.

            NOVUS   Additional   Collateral   Mortgage  Loans:   The  Additional
Collateral Mortgage Loans, as defined in the NOVUS Servicing Agreement.

            NOVUS  Servicing  Agreement:  The  Servicing  Agreement  executed by
NOVUS, as Servicer.

            NOVUS  Surety  Bond:  The  Surety  Bond,  as  defined  in the  NOVUS
Servicing Agreement.

            Officers'  Certificate:  With respect to any Person,  a  certificate
signed by the Chairman of the Board,  the President or a Vice President,  and by
the  Treasurer,  the Secretary or one of the  Assistant  Treasurers or Assistant
Secretaries  of  such  Person  (or,  in the  case  of a  Person  which  is not a
corporation, signed by the person or persons having like responsibilities),  and
delivered to the Trustee or the Trust Administrator, as the case may be.

            Opinion of Counsel: A written opinion of counsel, who may be outside
or salaried counsel for the Seller,  a Servicer or the Master  Servicer,  or any
affiliate of the Seller,  a Servicer or the Master  Servicer,  acceptable to the
Trustee if such opinion is to be delivered to the Trustee,  or acceptable to the
Trust   Administrator   if  such  opinion  is  to  be  delivered  to  the  Trust
Administrator;  provided,  however, that with respect to REMIC matters,  matters
relating  to the  determination  of  Eligible  Accounts  or matters  relating to
transfers of Certificates, such counsel shall be Independent.

            Optimal  Adjustment  Event:  With  respect  to any  Class of Class B
Certificates and any Distribution  Date, an Optimal  Adjustment Event will occur
with  respect to such Class if: (i) the  Principal  Balance of such Class on the
Determination  Date succeeding such Distribution Date would have been reduced to
zero  (regardless  of whether  such  Principal  Balance was reduced to zero as a
result of principal  distribution or the allocation of Realized Losses) and (ii)
(a) the Principal Balance of any Class of Class A Certificates  would be subject
to  further  reduction  as a  result  of the  third or  fifth  sentences  of the
definition of Principal Balance or (b) the Principal Balance of a Class of Class
B Certificates with a lower numerical  designation would be reduced with respect
to such  Distribution  Date as a result of the application of clause (ii) of the
definition of Class B-1 Principal Balance,  Class B-2 Principal  Balance,  Class
B-3 Principal Balance,  Class B-4 Principal Balance, Class B-5 Principal Balance
or Class B-6 Principal Balance.

            Original  Class  A  Percentage:  The  Class A  Percentage  as of the
Cut-Off Date, as set forth in Section 11.04.

            Original Class A Non-PO Principal  Balance:  The sum of the Original
Principal Balances of the Class A-1, Class A-2, Class A-3, Class A-4, Class A-5,
Class A-6, Class A-7, Class A-8, Class A-9, Class A-10,  Class A-11, Class A-12,
Class A-13,  Class A-14,  Class A-15,  Class A-16, Class A-17, Class A-18, Class
A-19,  Class A-20,  Class A-22,  Class A-R and Class A-LR  Certificates,  as set
forth in Section 11.06.

            Original Class A-8A IO Component Notional Amount: The Original Class
A-8A IO Component Notional Amount, as set forth in Section 11.05(a).

            Original Class A-8B IO Component Notional Amount: The Original Class
A-8B IO Component Notional Amount, as set forth in Section 11.05(a).

            Original Class A-8C IO Component Notional Amount: The Original Class
A-8C IO Component Notional Amount, as set forth in Section 11.05(a).

            Original Class A-8D IO Component Notional Amount: The Original Class
A-8D IO Component Notional Amount, as set forth in Section 11.05(a).

            Original  Class  A-21  Notional  Amount:  The  Original  Class  A-21
Notional Amount, as set forth in Section 11.05(a).

            Original  Class B Principal  Balance:  The sum of the Original Class
B-1 Principal Balance,  Original Class B-2 Principal Balance, Original Class B-3
Principal  Balance,  Original  Class B-4 Principal  Balance,  Original Class B-5
Principal  Balance and Original  Class B-6  Principal  Balance,  as set forth in
Section 11.14.

            Original Class B-1 Fractional Interest: As to the first Distribution
Date,  the  percentage  obtained by dividing the sum of the  Original  Class B-2
Principal Balance,  the Original Class B-3 Principal Balance, the Original Class
B-4 Principal  Balance,  Original  Class B-5 Principal  Balance and the Original
Class B-6 Principal  Balance by the sum of the Original Class A Non-PO Principal
Balance and the  Original  Class B Principal  Balance.  The  Original  Class B-1
Fractional Interest is specified in Section 11.16.

            Original Class B-2 Fractional Interest: As to the first Distribution
Date,  the  percentage  obtained by dividing the sum of the  Original  Class B-3
Principal Balance, the Original Class B-4 Principal Balance,  Original Class B-5
Principal Balance and the Original Class B-6 Principal Balance by the sum of the
Original  Class A Non-PO  Principal  Balance and the Original  Class B Principal
Balance.  The  Original  Class B-2  Fractional  Interest is specified in Section
11.17.

            Original Class B-3 Fractional Interest: As to the first Distribution
Date,  the  percentage  obtained by dividing the sum of the  Original  Class B-4
Principal  Balance,  the Original  Class B-5 Principal  Balance and the Original
Class B-6 Principal  Balance by the sum of the Original Class A Non-PO Principal
Balance and the  Original  Class B Principal  Balance.  The  Original  Class B-3
Fractional Interest is specified in Section 11.18.

            Original Class B-4 Fractional Interest: As to the first Distribution
Date,  the  percentage  obtained by dividing the sum of the  Original  Class B-5
Principal Balance and the Original Class B-6 Principal Balance by the sum of the
Original  Class A Non-PO  Principal  Balance and the Original  Class B Principal
Balance.  The  Original  Class B-4  Fractional  Interest is specified in Section
11.19.

            Original Class B-5 Fractional Interest: As to the first Distribution
Date,  the  percentage  obtained by dividing  the Original  Class B-6  Principal
Balance by the sum of the  Original  Class A Non-PO  Principal  Balance  and the
Original Class B Principal Balance.  The Original Class B-5 Fractional  Interest
is specified in Section 11.20.

            Original  Class B-1  Percentage:  The Class B-1 Percentage as of the
Cut-Off Date, as set forth in Section 11.08.

            Original  Class B-2  Percentage:  The Class B-2 Percentage as of the
Cut-Off Date, as set forth in Section 11.09.

            Original  Class B-3  Percentage:  The Class B-3 Percentage as of the
Cut-Off Date, as set forth in Section 11.10.

            Original  Class B-4  Percentage:  The Class B-4 Percentage as of the
Cut-Off Date, as set forth in Section 11.11.

            Original  Class B-5  Percentage:  The Class B-5 Percentage as of the
Cut-Off Date, as set forth in Section 11.12.

            Original  Class B-6  Percentage:  The Class B-6 Percentage as of the
Cut-Off Date, as set forth in Section 11.13.

            Original  Class B-1  Principal  Balance:  The  Class  B-1  Principal
Balance as of the Cut-Off Date, as set forth in Section 11.15.

            Original  Class B-2  Principal  Balance:  The  Class  B-2  Principal
Balance as of the Cut-Off Date, as set forth in Section 11.15.

            Original  Class B-3  Principal  Balance:  The  Class  B-3  Principal
Balance as of the Cut-Off Date, as set forth in Section 11.15.

            Original  Class B-4  Principal  Balance:  The  Class  B-4  Principal
Balance as of the Cut-Off Date, as set forth in Section 11.15.

            Original  Class B-5  Principal  Balance:  The  Class  B-5  Principal
Balance as of the Cut-Off Date, as set forth in Section 11.15.

            Original  Class B-6  Principal  Balance:  The  Class  B-6  Principal
Balance as of the Cut-Off Date, as set forth in Section 11.15.

            Original Principal  Balance:  Any of the Original Principal Balances
of the  Classes  of Class A  Certificates  as set forth in  Section  11.05;  the
Original  Principal  Balances of the Class A-8 Accrual  Component  and the Class
A-20 Components as set forth in Section 11.05;  the Original Class B-1 Principal
Balance,  Original  Class B-2 Principal  Balance,  Original  Class B-3 Principal
Balance,  Original  Class B-4 Principal  Balance,  Original  Class B-5 Principal
Balance or Original Class B-6 Principal Balance as set forth in Section 11.15.

            Original Subordinated Percentage:  The Subordinated Percentage as of
the Cut-Off Date, as set forth in Section 11.07.

            Other Servicer: Any of the Servicers other than Norwest Mortgage.

            Other Servicing Agreements:  The Servicing Agreements other than the
Norwest Servicing Agreement.

            Outstanding  Mortgage  Loan:  As to any Due Date,  a  Mortgage  Loan
(including an REO Mortgage Loan) which was not the subject of a Full Unscheduled
Principal  Receipt prior to such Due Date and which was not  repurchased  by the
Seller prior to such Due Date pursuant to Section 2.02 or 2.03.

            Owner   Mortgage   Loan  File:  A  file   maintained  by  the  Trust
Administrator  (or the  Custodian,  if any) for each Mortgage Loan that contains
the  documents  specified in the  Servicing  Agreements  or, in the case of each
Mortgage Loan serviced by Bank United or Merrill Lynch Credit  Corporation,  the
documents specified in the Bank United Mortgage Loan Sale Agreement and the MLCC
Mortgage Loan Purchase  Agreement  under their  respective  "Owner Mortgage Loan
File"  definition  or  similar  definition  and/or  other  provisions  requiring
delivery of specified  documents to the owner of the Mortgage Loan in connection
with the purchase thereof,  and any additional documents required to be added to
the Owner Mortgage Loan File pursuant to this Agreement.

            Parent Power(R)  Guaranty  Agreement for Real Estate:  As defined in
the MLCC Servicing Agreement.

            Parent  Power(R)  Guaranty  and  Security   Agreement  for  Security
Account: As defined in the MLCC Servicing Agreement.

            Partial  Liquidation  Proceeds:  Liquidation  Proceeds received by a
Servicer  prior  to the  month in  which  the  related  Mortgage  Loan  became a
Liquidated Loan.

            Partial  Unscheduled  Principal  Receipt:  An Unscheduled  Principal
Receipt which is not a Full Unscheduled Principal Receipt.

            Paying  Agent:  The  Person   authorized  on  behalf  of  the  Trust
Administrator,  as agent  for the  Master  Servicer,  to make  distributions  to
Certificateholders   with  respect  to  the   Certificates  and  to  forward  to
Certificateholders  the periodic and annual statements required by Section 4.04.
The  Paying  Agent may be any  Person  directly  or  indirectly  controlling  or
controlled  by or under common  control with the Master  Servicer and may be the
Trustee or the Trust  Administrator.  The initial  Paying  Agent is appointed in
Section 4.03(a).

            Payment Account: The account maintained pursuant to Section 4.03(b).

            Percentage  Interest:  With  respect to a Class A  Certificate  of a
Class  (other  than  Class  A-12 or  Class  A-21  Certificates),  the  undivided
percentage  interest obtained by dividing the original principal balance of such
Certificate  by the  Original  Principal  Balance  of  such  Class  of  Class  A
Certificates. With respect to a Class A-12 Certificate, the undivided percentage
interest  obtained by dividing the current  principal  balance evidenced by such
Certificate by the Principal Balance of such Class. With respect to a Class A-21
Certificate, the undivided percentage interest obtained by dividing the Original
Class A-21 Notional Amount  evidenced by such  Certificate by the Original Class
A-21 Notional  Amount of such Class.  With respect to a Class B Certificate of a
Class,  the  undivided  percentage  interest  obtained by dividing  the original
principal balance of such Certificate by the Original  Principal Balance of such
Class of Class B Certificates.

            Periodic Advance:  The aggregate of the advances required to be made
by a Servicer on any Distribution Date pursuant to its Servicing Agreement or by
the Master Servicer or the Trust Administrator hereunder, the amount of any such
advances  being equal to the total of all Monthly  Payments  (adjusted,  in each
case (i) in respect of interest,  to the applicable  Mortgage Interest Rate less
the applicable Servicing Fee in the case of Periodic Advances made by a Servicer
and to the  applicable  Net  Mortgage  Interest  Rate in the  case  of  Periodic
Advances  made by the Master  Servicer  or Trust  Administrator  and (ii) by the
amount of any related Debt Service  Reductions  or  reductions  in the amount of
interest  collectable from the Mortgagor  pursuant to the Soldiers' and Sailors'
Civil Relief Act of 1940, as amended, or similar legislation or regulations then
in effect) on the Mortgage  Loans,  that (x) were  delinquent as of the close of
business  on the  related  Determination  Date,  (y) were not the  subject  of a
previous  Periodic  Advance by such  Servicer  or of a  Periodic  Advance by the
Master Servicer or the Trust Administrator,  as the case may be and (z) have not
been determined by the Master Servicer,  such Servicer or Trust Administrator to
be Nonrecoverable Advances.

            Person:  Any individual,  corporation,  partnership,  joint venture,
association,   joint-stock  company,  trust,   unincorporated   organization  or
government or any agency or political subdivision thereof.

            Plan:  As defined in Section 5.02(c).

            PO  Fraction:  With  respect  to any  Discount  Mortgage  Loan,  the
difference  between 1.0 and the Non-PO  Fraction for such  Mortgage  Loan;  with
respect to any other Mortgage Loan, zero.

            Policy:  The irrevocable  Financial  Security  Insurance  Policy No.
50801-N,  including any endorsements thereto,  issued by Financial Security with
respect to the Class A-12  Certificates,  in the form attached hereto as Exhibit
N.

            Policy Payments Account:  The account maintained pursuant to Section
4.08(b).

            Pool Balance (Non-PO Portion):  As of any Distribution Date, the sum
of the amounts for each  Mortgage Loan that is an  Outstanding  Mortgage Loan of
the  product  of (i) the Non-PO  Fraction  for such  Mortgage  Loan and (ii) the
Scheduled Principal Balance of such Mortgage Loan.

            Pool Balance (PO Portion):  As of any Distribution  Date, the sum of
the amounts for each Mortgage Loan that is an  Outstanding  Mortgage Loan of the
product of (i) the PO Fraction  for such  Mortgage  Loan and (ii) the  Scheduled
Principal Balance of such Mortgage Loan.

            Pool  Distribution  Amount:  As of any Distribution  Date, the funds
eligible  for   distribution  to  the  Holders  of  the   Certificates  on  such
Distribution  Date,  which shall be the sum of (i) all previously  undistributed
payments or other receipts on account of principal and interest on or in respect
of the  Mortgage  Loans  (including,  without  limitation,  the  proceeds of any
repurchase  of a  Mortgage  Loan by the Seller  and any  Substitution  Principal
Amount)  received  by  the  Master  Servicer  with  respect  to  the  applicable
Remittance  Date in the  month of such  Distribution  Date  and any  Unscheduled
Principal  Receipts  received by the Master Servicer on or prior to the Business
Day  preceding  such  Distribution  Date,  (ii) all Periodic  Advances made by a
Servicer pursuant to the related  Servicing  Agreement or Periodic Advances made
by the Master Servicer or the Trust  Administrator  pursuant to Section 3.03 and
(iii) all other amounts required to be placed in the Certificate  Account by the
Servicer on or before the applicable  Remittance  Date or by the Master Servicer
or the Trust  Administrator on or prior to the Distribution  Date, but excluding
the following:

            (a) amounts  received as late  payments of principal or interest and
      respecting which the Master Servicer or the Trust  Administrator  has made
      one or more unreimbursed Periodic Advances;

            (b) the  portion  of  Liquidation  Proceeds  used to  reimburse  any
      unreimbursed  Periodic  Advances  by the  Master  Servicer  or  the  Trust
      Administrator;

            (c) those  portions  of each  payment of  interest  on a  particular
      Mortgage Loan which  represent (i) the Fixed Retained  Yield, if any, (ii)
      the Servicing Fee and (iii) the Master Servicing Fee;

            (d) all amounts  representing  scheduled  payments of principal  and
      interest  due after  the Due Date  occurring  in the  month in which  such
      Distribution Date occurs;

            (e) all  Unscheduled  Principal  Receipts  received by the Servicers
      after the Applicable  Unscheduled Principal Receipt Period relating to the
      Distribution  Date  for  the  applicable  type  of  Unscheduled  Principal
      Receipt, and all related payments of interest on such amounts;

            (f)  all   repurchase   proceeds  with  respect  to  Mortgage  Loans
      repurchased by the Seller pursuant to Section 2.02 or 2.03 on or following
      the Due Date in the month in which such  Distribution  Date occurs and the
      difference  between the unpaid  principal  balance of such  Mortgage  Loan
      substituted  for a defective  Mortgage Loan during the month preceding the
      month in which such  Distribution  Date  occurs  and the unpaid  principal
      balance of such defective Mortgage Loan;

            (g) that portion of  Liquidation  Proceeds  and REO  Proceeds  which
      represents any unpaid Servicing Fee or Master Servicing Fee;

            (h)  all  income  from  Eligible  Investments  that  is  held in the
      Certificate Account for the account of the Master Servicer;

            (i) all other amounts permitted to be withdrawn from the Certificate
      Account in respect of the  Mortgage  Loans,  to the extent not  covered by
      clauses (a)  through (h) above,  or not  required to be  deposited  in the
      Certificate Account under this Agreement;

            (j)   Net Foreclosure Profits;

            (k)   Month End Interest; and

            (l) the amount of any  Recoveries in respect of principal  which had
      previously  been allocated as a loss to one or more Classes of the Class A
      or Class B  Certificates  pursuant to Section  4.02 other than  Recoveries
      covered by the last sentence of Section 4.02(d).

            Pool Scheduled  Principal Balance:  As to any Distribution Date, the
aggregate   Scheduled  Principal  Balances  of  all  Mortgage  Loans  that  were
Outstanding  Mortgage Loans on the Due Date in the month  preceding the month of
such Distribution Date.

            Premium Payment: As to any Distribution Date, (i) the product of (a)
1/12th of 0.060% and (b) the Principal Balance of the Class A-12 Certificates as
of the  Determination  Date immediately  preceding such  Distribution Date minus
(ii)  the  Premium  Percentage  of  (x)  any  Non-Supported  Interest  Shortfall
allocated to the Class A  Certificates  and the Premium  Payment with respect to
such  Distribution  Date, (y) the interest  portion of any Excess Special Hazard
Losses,  Excess Fraud Losses and Excess Bankruptcy Losses allocated to the Class
A Certificates  and the Premium Payment with respect to such  Distribution  Date
pursuant to Section 4.02(e) and (z) the interest  portion of any Realized Losses
(other  than  Excess  Special  Hazard  Losses,  Excess  Fraud  Losses and Excess
Bankruptcy Losses) allocated to the Class A Certificates and the Premium Payment
on or after the Cross-Over Date pursuant to Section 4.02(e). The Premium Payment
will be an expense of the Lower-Tier REMIC.

            Premium  Percentage:  As to any  Distribution  Date,  the percentage
calculated by dividing the Premium Payment  (determined without regard to clause
(ii) of the definition  thereof) by the sum of (a) the Class A Interest  Accrual
Amount  (determined  without  regard to clause  (ii) of the  definition  of each
Interest Accrual Amount) and (b) the Premium Payment  (determined without regard
to clause (ii) of the definition of Premium Payment).

            Premium Shortfall Amount: As to any Distribution Date, any amount by
which the Premium  Payment  with respect to such  Distribution  Date exceeds the
amount  distributed to Financial  Security on such Distribution Date pursuant to
Paragraph first of Section 4.01(a)(i).

            Premium Unpaid Shortfall:  As to any Distribution  Date, the amount,
if any,  by which the  aggregate  of the  Premium  Shortfall  Amounts  for prior
Distribution Dates is in excess of the amounts distributed to Financial Security
on prior Distribution Dates pursuant to Paragraph second of Section 4.01(a)(i).

            Premium Mortgage Loan: A Mortgage Loan with a Net Mortgage  Interest
Rate of 6.500% or greater.

            Prepayment In Full:  With respect to any Mortgage  Loan, a Mortgagor
payment  consisting of a Principal  Prepayment in the amount of the  outstanding
principal  balance of such loan and resulting in the full  satisfaction  of such
obligation.

            Prepayment Interest Shortfall:  On any Distribution Date, the amount
of interest,  if any, that would have accrued on any Mortgage Loan which was the
subject  of a  Prepayment  in Full at the Net  Mortgage  Interest  Rate for such
Mortgage  Loan  from the date of its  Prepayment  in Full  (but in the case of a
Prepayment in Full where the Applicable  Unscheduled Principal Receipt Period is
the Mid-Month  Receipt Period,  only if the date of the Prepayment in Full is on
or  after  the  Determination  Date in the  month  prior  to the  month  of such
Distribution  Date and prior to the first day of the month of such  Distribution
Date) through the last day of the month prior to the month of such  Distribution
Date.

            Prepayment  Shift  Percentage:  As to  any  Distribution  Date,  the
percentage indicated below:

                                                         Prepayment Shift
         Distribution Date Occurring In                     Percentage
- ------------------------------------------------    ----------------------------
July 1999 through June 2004....................               0%

July 2004 through June 2005....................               30%

July 2005 through June 2006....................               40%

July 2006 through June 2007....................               60%

July 2007 through June 2008....................               80%

July 2008 and thereafter.......................               100%

            Principal  Adjustment:  In the  event  that the  Class  B-1  Optimal
Principal  Amount,  Class  B-2  Optimal  Principal  Amount,  Class  B-3  Optimal
Principal  Amount,  Class  B-4  Optimal  Principal  Amount,  Class  B-5  Optimal
Principal  Amount  or Class  B-6  Optimal  Principal  Amount  is  calculated  in
accordance with the proviso in such definition with respect to any  Distribution
Date,  the Principal  Adjustment  for such Class of Class B  Certificates  shall
equal the difference  between (i) the amount that would have been distributed to
such Class as principal in accordance with Section 4.01(a) for such Distribution
Date,  calculated  without  regard to such  proviso  and  assuming  there are no
Principal Adjustments for such Distribution Date and (ii) the Adjusted Principal
Balance for such Class.

            Principal Balance:  As of the first Determination Date and as to any
Class of Class A  Certificates  (other than the Class A-8,  Class A-20 and Class
A-21  Certificates),  the  Class  A-8  Accrual  Component  and  any  Class  A-20
Component,  the Original Principal Balance of such Class or Component. As of any
subsequent  Determination  Date prior to the Cross-Over Date and as to any Class
of Class A Certificates  (other than the Class A-8,  Class A-20,  Class A-21 and
Class A-PO  Certificates),  the Class A-8 Accrual  Component  and any Class A-20
Component,  the Original Principal Balance of such Class or Component (increased
in the case of a Class of Accrual  Certificates or the Accrual  Component by the
Accrual  Distribution  Amounts with respect to prior Distribution Dates for such
Class of  Accrual  Certificates  or Accrual  Component)  less the sum of (a) all
amounts  previously  distributed  in respect of such Class or Component on prior
Distribution  Dates (i)  pursuant  to  Paragraph  third  clause  (A) of  Section
4.01(a)(i),  (ii) as a result of a Principal Adjustment and (iii) if applicable,
from the Accrual  Distribution Amounts for such prior Distribution Dates and (b)
the Realized Losses allocated through such  Determination  Date to such Class or
Component  pursuant to Section  4.02(b).  After the Cross-Over  Date,  each such
Principal   Balance  will  also  be  reduced  (a  "Loss   Reduction")   on  each
Determination  Date  by an  amount  equal  to the  product  of the  Class A Loss
Percentage of such Class or Component and the excess, if any, of (i) the Class A
Non-PO Principal  Balance as of such  Determination  Date without regard to this
sentence over (ii) the  difference  between (A) the Adjusted Pool Amount for the
preceding  Distribution  Date and (B) the Adjusted  Pool Amount (PO Portion) for
the preceding Distribution Date; provided,  however, that the amount of any such
Loss Reduction for the Class A-8 Certificates will be decreased by the Class A-9
Loss  Allocation  Amount and the amount of any such Loss Reduction for the Class
A-19  Certificates  will be decreased by the Class A-22 Loss Allocation  Amount.
After the Cross-Over Date, the Principal  Balance for the Class A-9 Certificates
will  additionally  be reduced by the Class A-9 Loss  Allocation  Amount and the
Principal  Balance for the Class A-22  Certificates will additionally be reduced
by the Class A-22 Loss Allocation Amount.

            As of any Determination Date, the Principal Balance of the Class A-8
Certificates will equal the Principal Balance of the Class A-8 Accrual Component
and the Principal  Balance of the Class A-20  Certificates will equal the sum of
the Principal Balances of the Class A-20 Components.

            The Class A-21 Certificates are interest-only  Certificates and have
no Principal Balance.

            Each Class A-8 IO Component is an interest-only Component and has no
Principal Balance.

            As of any subsequent Determination Date prior to the Cross-Over Date
and as to the Class A-PO  Certificates,  the Original  Principal Balance of such
Class less the sum of (a) all amounts  previously  distributed in respect of the
Class A-PO Certificates on prior Distribution Dates pursuant to Paragraphs third
clause  (B) and  fourth  of  Section  4.01(a)(i)  and (b)  the  Realized  Losses
allocated  through  such  Determination  Date  to the  Class  A-PO  Certificates
pursuant to Section 4.02(b).  After the Cross-Over Date, such Principal  Balance
will  also be  reduced  on each  Determination  Date by an  amount  equal to the
difference, if any, between such Principal Balance as of such Determination Date
without  regard to this  sentence and the Adjusted  Pool Amount (PO Portion) for
the preceding Distribution Date.

            As to the Class B  Certificates,  the Class B-1  Principal  Balance,
Class B-2 Principal Balance,  Class B-3 Principal  Balance,  Class B-4 Principal
Balance,   Class  B-5  Principal  Balance  and  Class  B-6  Principal   Balance,
respectively.

            Principal Prepayment: Any Mortgagor payment on a Mortgage Loan which
is  received  in  advance  of its Due Date and is not  accompanied  by an amount
representing  scheduled  interest  for  any  period  subsequent  to the  date of
prepayment.

            Prior Month Receipt Period:  With respect to each Distribution Date,
the calendar month preceding the month in which such Distribution Date occurs.

            Prohibited  Transaction  Tax: Any tax imposed  under Section 860F of
the Code.

            Prudent Servicing Practices:  The standard of care set forth in each
Servicing Agreement.

            Rate  Determination  Date: As to any Distribution Date and any Class
of LIBOR  Certificates,  the second LIBOR Business Day prior to the beginning of
the month preceding the month in which such Distribution Date occurs.

            Rating Agency: Any nationally  recognized  statistical credit rating
agency, or its successor,  that rated one or more Classes of the Certificates at
the  request  of  the  Seller  at  the  time  of  the  initial  issuance  of the
Certificates.  The Rating  Agencies for the Class A  Certificates  and Class B-1
Certificates  are DCR and S&P. The Rating  Agency for the Class B-2,  Class B-3,
Class B-4 and Class B-5  Certificates  is DCR. If any such agency or a successor
is no longer in  existence,  "Rating  Agency" shall be such  statistical  credit
rating agency, or other comparable Person,  designated by the Seller,  notice of
which designation shall be given to the Trustee, the Trust Administrator and the
Master Servicer.  References herein to the highest short-term rating category of
a Rating  Agency shall mean D-1+ in the case of DCR, A-1+ in the case of S&P and
in the  case of any  other  Rating  Agency  shall  mean its  equivalent  of such
ratings.  References  herein to the highest  long-term  rating  categories  of a
Rating  Agency shall mean AAA, and in the case of any other Rating  Agency shall
mean its equivalent of such rating without any plus or minus.

            Realized  Losses:   With  respect  to  any  Distribution  Date,  (i)
Liquidated  Loan Losses  (including  Special Hazard Losses and Fraud Losses) and
(ii)  Bankruptcy  Losses  incurred  in the  month  preceding  the  month of such
Distribution Date.

            Record Date: The last Business Day of the month  preceding the month
of the related Distribution Date.

            Recovery:  Any amount received on a Mortgage Loan subsequent to such
Mortgage Loan being determined to be a Liquidated Loan.

            Reference  Banks:  Initially,  the Reference Banks shall be Deutsche
Bank  International,  Bank of America,  FSB,  Citibank,  N.A. and the Fuji Bank,
Limited. If any of these banks are not available,  the Trust Administrator shall
select from one of the  following  banks a  substitute  Reference  Bank:  Marine
Midland Bank, Westdeutsche Landesbank Grizozentrale, The Chase Manhattan Bank or
National  Westminister  Bank Plc. If any of these banks are not  available,  the
Trust Administrator shall in its discretion select another Reference Bank.

            Relevant Anniversary:  See "Bankruptcy Loss Amount."

            REMIC:  A "real estate  mortgage  investment  conduit" as defined in
Code Section 860D.

            REMIC Provisions:  Provisions of the federal income tax law relating
to REMICs, which appear at Sections 860A through 860G of Part IV of Subchapter M
of  Chapter  1 of  Subtitle  A of the Code,  and  related  provisions,  and U.S.
Department of the Treasury temporary,  proposed or final regulations promulgated
thereunder,  as the  foregoing  are in  effect  (or  with  respect  to  proposed
regulations, are proposed to be in effect) from time to time.

            Remittance Date: As defined in each of the Servicing Agreements.

            REO Mortgage Loan: Any Mortgage Loan which is not a Liquidated  Loan
and as to which the  indebtedness  evidenced  by the  related  Mortgage  Note is
discharged  and the  related  Mortgaged  Property  is held as part of the  Trust
Estate.

            REO Proceeds:  Proceeds received in respect of any REO Mortgage Loan
(including,  without  limitation,  proceeds  from  the  rental  of  the  related
Mortgaged Property).

            Request for Release: A request for release in substantially the form
attached as Exhibit G hereto.

            Reserve Fund:  The  non-interest  bearing trust account  established
with the Trust  Administrator and maintained by the Trust  Administrator for the
benefit of the Class A-12 Certificateholders pursuant to Section 4.06.
The Reserve Fund shall be an Eligible Account.

            Reserve  Withdrawal:  With  respect to any  Distribution  Date,  the
lesser of (a) the amount on deposit  in the  Reserve  Fund and (b) the amount of
Non-Supported Interest Shortfalls allocated to the Class A-12 Certificates.

            Responsible  Officer:  When used with  respect to the Trustee or the
Trust Administrator,  the Chairman or Vice-Chairman of the Board of Directors or
Trustees,  the Chairman or Vice-Chairman of the Executive or Standing  Committee
of the Board of  Directors  or  Trustees,  the  President,  the  Chairman of the
Committee on Trust Matters,  any Vice  President,  the Secretary,  any Assistant
Secretary,  the Treasurer,  any Assistant Treasurer,  the Cashier, any Assistant
Cashier,  any Trust Officer or Assistant  Trust Officer,  the Controller and any
Assistant  Controller  or  any  other  officer  of  the  Trustee  or  the  Trust
Administrator,  as the case may be, customarily  performing functions similar to
those performed by any of the  above-designated  officers and also, with respect
to a  particular  matter,  any other  officer  to whom such  matter is  referred
because of such  officer's  knowledge  of and  familiarity  with the  particular
subject.

            Rounding  Account:  The special account  established  with the Trust
Administrator  and  maintained  by the Trust  Administrator  pursuant to Section
4.07(e). The Rounding Account shall be an Eligible Account.

            Rounding Amount:  With respect to any Distribution Date, the amount,
if any,  required to be withdrawn from the Rounding  Account pursuant to Section
4.07(e).

            Rule 144A: Rule 144A  promulgated  under the Securities Act of 1933,
as amended.

            S&P: Standard & Poor's, or its successor in interest.

            Schedule I PAC Certificates:  The Class A-1, Class A-2 and Class A-3
Certificates.

            Schedule I PAC Principal  Amount:  For any Distribution Date and the
Schedule I PAC  Certificates,  the amount,  if any, that would reduce the sum of
the  Principal  Balances of such Classes to the  percentage  of their  aggregate
initial Principal Balance for such Distribution Date shown in the Schedule I PAC
table under Section 4.01(b).

            Schedule I Reduction Amount: For any Distribution Date and the Class
A-4 and Class A-5 Certificates and the Class A-8 Accrual Component,  the amount,
if any, that would reduce the sum of the Principal  Balances of such Classes and
Component to the percentage of their  aggregate  initial  Principal  Balance for
such  Distribution  Date shown in the Schedule I Reduction  table under  Section
4.01(b).

            Schedule  II  PAC  Certificates:  The  Class  A-16  and  Class  A-17
Certificates.

            Schedule II PAC Principal Amount:  For any Distribution Date and the
Schedule II PAC  Certificates,  the amount, if any, that would reduce the sum of
the  Principal  Balances of such Classes to the  percentage  of their  aggregate
initial  Principal  Balance for such  Distribution Date shown in the Schedule II
PAC table under Section 4.01(b).

            Schedule II  Reduction  Amount:  For any  Distribution  Date and the
Class A-4 Certificates and Class A-8 Accrual Component, the amount, if any, that
would  reduce the sum of Principal  Balances of such Class and  Component to the
percentage of their aggregate  initial  Principal  Balance for such Distribution
Date shown in the Schedule II Reduction table under Section 4.01(b).

            Schedule III Reduction  Amount:  For any  Distribution  Date and the
Class A-4  Certificates,  the amount,  if any,  that would reduce the  Principal
Balance of such Class to the  percentage  of its initial  Principal  Balance for
such  Distribution  Date shown in the Schedule III Reduction table under Section
4.01(b).

            Schedule IV  Reduction  Amount:  For any  Distribution  Date and the
Class A-10, Class A-11, Class A-12 and Class A-13  Certificates,  the amount, if
any, that would reduce the sum of the Principal  Balances of such Classes to the
percentage of their aggregate  initial  Principal  Balance for such Distribution
Date shown in the Schedule IV Reduction table under Section 4.01(b).

            Scheduled   Principal   Balance:   As  to  any  Mortgage   Loan  and
Distribution  Date,  the  principal  balance of such Mortgage Loan as of the Due
Date in the month preceding the month of such  Distribution Date as specified in
the amortization schedule at the time relating thereto (before any adjustment to
such  amortization  schedule by reason of any  bankruptcy  (other than Deficient
Valuations)  or similar  proceeding or any moratorium or similar waiver or grace
period) after giving effect to (A) Unscheduled  Principal  Receipts  received or
applied by the  applicable  Servicer  during the related  Unscheduled  Principal
Receipt Period for each applicable type of Unscheduled Principal Receipt related
to the  Distribution  Date occurring in the month  preceding  such  Distribution
Date,  (B)  Deficient  Valuations  incurred  prior  to such Due Date and (C) the
payment of principal due on such Due Date and irrespective of any delinquency in
payment by the related Mortgagor.  Accordingly,  the Scheduled Principal Balance
of a Mortgage Loan which becomes a Liquidated  Loan at any time through the last
day of such related Unscheduled Principal Receipt Period shall be zero.

            Seller:  Norwest Asset Securities  Corporation,  or its successor in
interest.

            Senior Optimal Amount: As to any Distribution Date, the sum for such
Distribution  Date of (a) the Class A Non-PO  Optimal  Amount  and (b) the Class
A-PO Optimal Principal Amount.

            Servicer  Mortgage  Loan File:  As defined in each of the  Servicing
Agreements.

            Servicers:  Each of Norwest Mortgage, Inc., Bank United, First Union
Mortgage  Corporation,  Countrywide Home Loans, Inc.,  SunTrust Mortgage,  Inc.,
Merrill Lynch Credit  Corporation,  National City Mortgage Company,  FT Mortgage
Companies,  NOVUS Financial Corporation,  Hibernia National Bank, The Huntington
Mortgage Company,  HomeSide  Lending,  Plymouth Savings Bank and Chase Manhattan
Mortgage Corp. as Servicer under the related Servicing Agreement.

            Servicing Agreements: Each of the Servicing Agreements executed with
respect  to a  portion  of the  Mortgage  Loans by one of the  Servicers,  which
agreements are attached hereto, collectively, as Exhibit L.

            Servicing  Fee:  With  respect  to any  Servicer,  as defined in its
Servicing Agreement.

            Servicing Fee Rate: With respect to a Mortgage Loan, as set forth in
Section 11.25.

            Servicing  Officer:  Any  officer  of a  Servicer  involved  in,  or
responsible for, the administration and servicing of the Mortgage Loans.

            Similar Law: As defined in Section 5.02(c).

            Single  Certificate:  A Certificate  of any Class that evidences the
smallest permissible Denomination for such Class, as set forth in Section 11.24.

            Special  Hazard  Loss:  (i) A  Liquidated  Loan Loss  suffered  by a
Mortgaged Property on account of direct physical loss, exclusive of (a) any loss
covered by a hazard policy or a flood insurance policy  maintained in respect of
such  Mortgaged  Property  pursuant  to a Servicing  Agreement  and (b) any loss
caused by or resulting from:

            (1)   normal wear and tear;

            (2)   infidelity,  conversion or other  dishonest act on the part of
                  the Trustee, the Trust Administrator or the Servicer or any of
                  their agents or employees; or

            (3)   errors in  design,  faulty  workmanship  or faulty  materials,
                  unless the collapse of the property or a part thereof ensues;

            or (ii) any  Liquidated  Loan  Loss  suffered  by the  Trust  Estate
arising  from or related to the  presence or  suspected  presence  of  hazardous
wastes or hazardous  substances  on a Mortgaged  Property  unless such loss to a
Mortgaged  Property is covered by a hazard  policy or a flood  insurance  policy
maintained  in respect of such  Mortgaged  Property  pursuant  to the  Servicing
Agreement.

            Special Hazard Loss Amount:  As of any Distribution  Date, an amount
equal to  $8,500,697.57  minus the sum of (i) the  aggregate  amount of  Special
Hazard Losses  allocated  solely to the Class B Certificates  in accordance with
Section 4.02(a) and (ii) the Special Hazard Adjustment Amount (as defined below)
as most recently  calculated.  For each  anniversary  of the Cut-Off  Date,  the
Special Hazard  Adjustment  Amount shall be calculated and shall be equal to the
amount,  if any, by which the amount calculated in accordance with the preceding
sentence  (without  giving  effect  to  the  deduction  of  the  Special  Hazard
Adjustment Amount for such  anniversary)  exceeds the greater of (A) the product
of  the  Special  Hazard  Percentage  for  such  anniversary  multiplied  by the
outstanding principal balance of all the Mortgage Loans on the Distribution Date
immediately  preceding such  anniversary,  (B) twice the  outstanding  principal
balance  of the  Mortgage  Loan  in the  Trust  Estate  which  has  the  largest
outstanding  principal  balance on the Distribution  Date immediately  preceding
such  anniversary  and (C) that which is  necessary  to  maintain  the  original
ratings on the  Certificates as evidenced by letters to that effect delivered by
Rating Agencies to the Master Servicer and the Trust Administrator. On and after
the Cross-Over Date, the Special Hazard Loss Amount shall be zero.

            Special  Hazard  Percentage:  As of each  anniversary of the Cut-Off
Date,  the  greater of (i) 1.00% and (ii) the  largest  percentage  obtained  by
dividing the  aggregate  outstanding  principal  balance (as of the  immediately
preceding  Distribution  Date)  of  the  Mortgage  Loans  secured  by  Mortgaged
Properties  located  in a  single,  five-digit  zip  code  area in the  State of
California by the outstanding  principal balance of all the Mortgage Loans as of
the immediately preceding Distribution Date.

            Startup Day: As defined in Section 2.05.

            Subordinated Percentage: As to any Distribution Date, the percentage
which is the difference between 100% and the Class A Percentage for such date.

            Subordinated Prepayment Percentage: As to any Distribution Date, the
percentage  which is the  difference  between  100% and the  Class A  Prepayment
Percentage for such date.

            Subsidy  Loan:  Any Mortgage  Loan  subject to a temporary  interest
subsidy  agreement  pursuant to which the monthly interest  payments made by the
related  Mortgagor will be less than the scheduled  monthly interest payments on
such Mortgage  Loan,  with the resulting  difference in interest  payments being
provided by the employer of the Mortgagor.  Each Subsidy Loan will be identified
as such in the Mortgage Loan Schedule.

            Substitute Mortgage Loan: As defined in Section 2.02.

            Substitution  Principal  Amount:  With respect to any Mortgage  Loan
substituted  in accordance  with Section 2.02 or pursuant to Section  2.03,  the
excess  of (x) the  unpaid  principal  balance  of the  Mortgage  Loan  which is
substituted for over (y) the unpaid principal balance of the Substitute Mortgage
Loan, each balance being determined as of the date of substitution.

            Trust  Administrator:  First Union National Bank, a national banking
association with its principal office located in Charlotte,  North Carolina,  or
any successor trust administrator appointed as herein provided.

            Trust  Estate:  The corpus of the trust  created by this  Agreement,
consisting of the Mortgage  Loans (other than any Fixed  Retained  Yield),  such
amounts as may be held from time to time in the Certificate  Account (other than
any  Fixed  Retained  Yield),  the  Rounding  Account,  the  rights of the Trust
Administrator,  on  behalf  of the  Trustee,  to  receive  the  proceeds  of all
insurance  policies and  performance  bonds,  if any,  required to be maintained
hereunder or under the related  Servicing  Agreement,  property  which secured a
Mortgage  Loan and which has been  acquired  by  foreclosure  or deed in lieu of
foreclosure,  the Reserve Fund and the rights of the Trust  Administrator  under
the Policy.  None of the Reserve Fund, the Policy or the Policy Payments Account
shall be a part of the Upper-Tier REMIC or Lower-Tier REMIC.

            Trustee:  United  States Trust Company of New York, or any successor
trustee appointed as herein provided.

            Uncertificated  Lower-Tier Interest: Any of the Class A-L1 Interest,
the Class A-L2 Interest,  the Class A-L3 Interest,  the Class A-L4 Interest, the
Class A-L5 Interest, the Class A-L6 Interest, the Class A-L8 Interest, the Class
A-L10 Interest,  the Class A-L12 Interest,  the Class A-L14 Interest,  the Class
A-L16 Interest,  the Class A-L20 Interest,  the Class A-LPO Interest,  the Class
A-LUR Interest, the Class B-LI Interest, the Class B-L2 Interest, the Class B-L3
Interest,  the Class B-L4  Interest,  the Class B-L5 Interest and the Class B-L6
Interest.

            Unpaid  Interest  Shortfalls:  Each of the  Class A Unpaid  Interest
Shortfalls,  the Class  B-1  Unpaid  Interest  Shortfall,  the Class B-2  Unpaid
Interest  Shortfall,  the Class B-3  Unpaid  Interest  Shortfall,  the Class B-4
Unpaid Interest Shortfall, the Class B-5 Unpaid Interest Shortfall and the Class
B-6 Unpaid Interest Shortfall.

            Unscheduled  Principal  Receipt:  Any Principal  Prepayment or other
recovery  of  principal  on a  Mortgage  Loan,  including,  without  limitation,
Liquidation   Proceeds,   Net  REO  Proceeds  and  proceeds  received  from  any
condemnation  award or proceeds in lieu of condemnation  other than that portion
of such proceeds  released to the Mortgagor in accordance  with the terms of the
Mortgage or Prudent  Servicing  Practices,  but  excluding  any Net  Foreclosure
Profits and  proceeds of a repurchase  of a Mortgage  Loan by the Seller and any
Substitution  Principal  Amounts.  Except as set forth in the last  sentence  of
Section  4.02(d),  a Recovery shall not be treated as an  Unscheduled  Principal
Receipt.

            Unscheduled  Principal  Receipt Period:  Either a Mid-Month  Receipt
Period or a Prior Month Receipt Period.

            Upper-Tier  Certificate:  Any one of the Class A Certificates (other
than the Class A-LR Certificate) and the Class B Certificates.

            Upper-Tier  Certificate  Account:  The trust account established and
maintained pursuant to Section 4.01(e).

            Upper-Tier  REMIC:  One of the two separate  REMICs  comprising  the
Trust  Estate,  the  assets of which  consist of the  Uncertificated  Lower-Tier
Interests and such amounts as shall from time to time be held in the  Upper-Tier
Certificate Account.

            U.S. Person:  As defined in Section 4.01(f).

            Voting Interest: With respect to any provisions hereof providing for
the action,  consent or approval of the Holders of all  Certificates  evidencing
specified Voting Interests in the Trust Estate, the Class A-21 Certificates will
be  entitled  to  1%  of  the  aggregate  Voting  Interest  represented  by  all
Certificates and each remaining Class of Certificates  will be entitled to a pro
rata portion of the remaining  Voting  Interest  equal to the ratio  obtained by
dividing the Principal Balance of such Class by the sum of the Class A Principal
Balance  and the  Class B  Principal  Balance;  provided,  however,  that if the
Principal Balance of the Class A-8 Certificates has been reduced to zero and any
Class A-8 IO Notional  Amount is greater than zero,  the Class A-8  Certificates
will be entitled to 1% of the  remaining  Voting  Interest,  and each  remaining
Class of  Certificates  will be entitled to a pro rata portion of the  remaining
Voting Interest after taking into account the Voting  Interest  allocated to the
Class A-8  Certificates.  Each  Certificateholder  of a Class will have a Voting
Interest  equal to the  product  of the Voting  Interest  to which such Class is
collectively  entitled and the Percentage  Interest in such Class represented by
such Holder's Certificates.  With respect to any provisions hereof providing for
action,  consent or approval of each Class of Certificates or specified  Classes
of Certificates,  each  Certificateholder of a Class will have a Voting Interest
in such Class equal to such Holder's Percentage Interest in such Class.

            Weighted Average Net Mortgage  Interest Rate: As to any Distribution
Date,  a rate per annum equal to the average,  expressed as a percentage  of the
Net Mortgage Interest Rates of all Mortgage Loans that were Outstanding Mortgage
Loans as of the Due Date in the month  preceding the month of such  Distribution
Date,  weighted on the basis of the respective  Scheduled  Principal Balances of
such Mortgage Loans.

            Section 1.02     Acts of Holders.

            (a)   Any  request,  demand,   authorization,   direction,   notice,
consent,  waiver or other action provided by this Agreement to be given or taken
by Holders  may be  embodied  in and  evidenced  by one or more  instruments  of
substantially similar tenor signed by such Holders in person or by an agent duly
appointed in writing. Except as herein otherwise expressly provided, such action
shall become  effective when such instrument or instruments are delivered to the
Trustee and the Trust  Administrator.  Proof of execution of any such instrument
or of a writing appointing any such agent shall be sufficient for any purpose of
this   Agreement  and   conclusive  in  favor  of  the  Trustee  and  the  Trust
Administrator,  if made in the manner provided in this Section 1.02. The Trustee
shall promptly  notify the Master Servicer in writing of the receipt of any such
instrument or writing.

            (b)   The  fact and date of the  execution by any Person of any such
instrument  or  writing  may be proved  by the  affidavit  of a witness  of such
execution or by a certificate of a notary public or other officer  authorized by
law to take  acknowledgments  of deeds,  certifying that the individual  signing
such instrument or writing acknowledged to him the execution thereof.  When such
execution is by a signer acting in a capacity  other than his or her  individual
capacity,  such certificate or affidavit shall also constitute  sufficient proof
of his or her  authority.  The  fact  and  date  of the  execution  of any  such
instrument or writing,  or the authority of the  individual  executing the same,
may  also  be  proved  in any  other  manner  which  the  Trustee  or the  Trust
Administrator deems sufficient.

            (c)   The   ownership   of   Certificates   (whether   or  not  such
Certificates shall be overdue and  notwithstanding  any notation of ownership or
other  writing  thereon  made by  anyone  other  than  the  Trustee,  the  Trust
Administrator and the  Authenticating  Agent) shall be proved by the Certificate
Register,  and neither the Trustee, the Trust Administrator,  the Seller nor the
Master Servicer shall be affected by any notice to the contrary.

            (d)   Any  request,  demand,   authorization,   direction,   notice,
consent,  waiver or other  action of the  Holder of any  Certificate  shall bind
every future Holder of the same Certificate and the Holder of every  Certificate
issued upon the registration of transfer  thereof or in exchange  therefor or in
lieu thereof in respect of anything done,  omitted or suffered to be done by the
Trustee, the Trust Administrator,  the Seller or the Master Servicer in reliance
thereon, whether or not notation of such action is made upon such Certificate.

            Section 1.03     Effect of Headings and Table of Contents.

            The Article and Section  headings in this Agreement and the Table of
Contents  are for  convenience  of  reference  only and  shall  not  affect  the
interpretation or construction of this Agreement.

            Section 1.04     Benefits of Agreement.

            Nothing  in  this  Agreement  or in  the  Certificates,  express  or
implied,  shall give to any Person, other than the parties to this Agreement and
their  successors  hereunder and the Holders of the  Certificates  and Financial
Security any benefit or any legal or  equitable  right,  power,  remedy or claim
under this Agreement.


<PAGE>






                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                      ORIGINAL ISSUANCE OF THE CERTIFICATES

            Section 2.01      Conveyance of Mortgage Loans.

            The Seller,  concurrently  with the execution  and delivery  hereof,
does hereby  assign to the Trustee,  without  recourse all the right,  title and
interest of the Seller in and to (a) the Trust  Estate,  including  all interest
(other than the portion,  if any,  representing  the Fixed  Retained  Yield) and
principal  received by the Seller on or with respect to the Mortgage Loans after
the Cut-Off Date (and including scheduled payments of principal and interest due
after the Cut-Off  Date but received by the Seller on or before the Cut-Off Date
and Unscheduled  Principal Receipts received or applied on the Cut-Off Date, but
not including payments of principal and interest due on the Mortgage Loans on or
before the Cut-Off Date), (b) the Insurance Policies, (c) the obligations of the
Servicers under the Servicing Agreements with respect to the Mortgage Loans, (d)
all of the  Seller's  right,  title and interest in and to each  Mortgage  100SM
Pledge  Agreement,  each Parent  Power(R)  Guaranty and Security  Agreement  for
Securities  Account and each Parent Power(R) Guaranty  Agreement for Real Estate
with respect to each MLCC  Additional  Collateral  Mortgage Loan, (e) all of the
Seller's  right,  title  and  interest  in and to each  Dual  Collateral  Pledge
Agreement with respect to each NOVUS Additional Collateral Mortgage Loan and (f)
proceeds of all the foregoing.

            In connection with such assignment,  the Seller shall,  with respect
to  each  Mortgage  Loan,  deliver,  or  cause  to be  delivered,  to the  Trust
Administrator,  as initial  Custodian,  on or before the Closing  Date, an Owner
Mortgage  Loan File. If any Mortgage or an assignment of a Mortgage to the Trust
Administrator or any prior assignment is in the process of being recorded on the
Closing  Date,  the Seller shall  deliver a copy  thereof,  certified by Norwest
Mortgage  or the  applicable  Norwest  Mortgage  Correspondent  to be a true and
complete copy of the document sent for  recording,  and the Seller shall use its
best efforts to cause each such  original  recorded  document or certified  copy
thereof  to be  delivered  to the Trust  Administrator  promptly  following  its
recordation, but in no event later than one (1) year following the Closing Date.
The Seller shall also cause to be delivered to the Trust Administrator any other
original  mortgage loan document to be included in the Owner  Mortgage Loan File
if a copy thereof has been  delivered.  The Seller shall pay from its own funds,
without  any  right  of  reimbursement   therefor,  the  amount  of  any  costs,
liabilities  and expenses  incurred by the Trust Estate by reason of the failure
of the Seller to cause to be delivered to the Trust Administrator within one (1)
year  following  the  Closing  Date any  original  Mortgage or  assignment  of a
Mortgage not delivered to the Trust Administrator on the Closing Date.

            In lieu of recording an  assignment  of any Mortgage the Seller may,
to the extent set forth in the applicable Servicing Agreement,  deliver or cause
to be delivered to the Trust  Administrator  the assignment of the Mortgage Loan
from the Seller to the Trust  Administrator  in a form suitable for recordation,
together with an Opinion of Counsel to the effect that recording is not required
to  protect  the  Trustee's  right,  title and  interest  in and to the  related
Mortgage Loan or, in case a court should recharacterize the sale of the Mortgage
Loans as a financing,  to perfect a first priority security interest in favor of
the Trustee in the related  Mortgage Loan. In the event that the Master Servicer
receives  notice that  recording  is  required  to protect the right,  title and
interest of the Trustee in and to any such Mortgage  Loan for which  recordation
of an assignment has not previously  been  required,  the Master  Servicer shall
promptly notify the Trust Administrator and the Trust Administrator shall within
five Business Days (or such other reasonable period of time mutually agreed upon
by the  Master  Servicer  and the Trust  Administrator)  of its  receipt of such
notice deliver each previously unrecorded assignment to the related Servicer for
recordation.

            Section 2.02      Acceptance by Trust Administrator.

            The Trust  Administrator,  on behalf  of the  Trustee,  acknowledges
receipt  of the  Mortgage  Notes,  the  Mortgages,  the  assignments  and  other
documents  required to be delivered on the Closing Date pursuant to Section 2.01
above and  declares  that it holds and will  hold such  documents  and the other
documents  constituting a part of the Owner Mortgage Loan Files  delivered to it
in trust,  upon the  trusts  herein set  forth,  for the use and  benefit of all
present and future  Certificateholders.  The Trust Administrator agrees, for the
benefit of Certificateholders, to review each Owner Mortgage Loan File within 45
days after  execution of this  Agreement in order to ascertain that all required
documents  set forth in Section 2.01 have been  executed and received and appear
regular on their face,  and that such  documents  relate to the  Mortgage  Loans
identified  in  the  Mortgage  Loan   Schedule,   and  in  so  doing  the  Trust
Administrator  may rely on the purported due  execution and  genuineness  of any
such document and on the purported  genuineness  of any  signature  thereon.  If
within  such  45  day  period  the  Trust   Administrator   finds  any  document
constituting  a part of an Owner Mortgage Loan File not to have been executed or
received or to be  unrelated to the Mortgage  Loans  identified  in the Mortgage
Loan  Schedule  or not to appear  regular on its face,  the Trust  Administrator
shall  promptly  (and in no event more than 30 days after the  discovery of such
defect)  notify the Seller,  which shall have a period of 60 days after the date
of such  notice  within  which to  correct or cure any such  defect.  The Seller
hereby  covenants and agrees that, if any material defect is not so corrected or
cured,  the Seller will, not later than 60 days after the Trust  Administrator's
notice to it referred to above respecting such defect, either (i) repurchase the
related Mortgage Loan or any property acquired in respect thereof from the Trust
Estate at a price  equal to (a) 100% of the  unpaid  principal  balance  of such
Mortgage Loan plus (b) accrued interest at the Mortgage  Interest Rate, less any
Fixed Retained Yield, through the last day of the month in which such repurchase
takes place or (ii) if within two years of the Startup Day, or such other period
permitted by the REMIC  Provisions,  substitute  for any Mortgage  Loan to which
such material defect relates, a new mortgage loan (a "Substitute Mortgage Loan")
having such  characteristics so that the  representations  and warranties of the
Seller set forth in Section 2.03(b) hereof (other than Section 2.03(b)(i)) would
not have been  incorrect had such  Substitute  Mortgage Loan  originally  been a
Mortgage  Loan.  In no event shall any  Substitute  Mortgage Loan have an unpaid
principal  balance,  as of the date of substitution,  greater than the Scheduled
Principal  Balance (reduced by the scheduled payment of principal due on the Due
Date in the  month  of  substitution)  of the  Mortgage  Loan  for  which  it is
substituted.   In  addition,   such  Substitute   Mortgage  Loan  shall  have  a
Loan-to-Value  Ratio less than or equal to and a Mortgage Interest Rate equal to
that of the Mortgage Loan for which it is substituted.

            In the case of a repurchased Mortgage Loan or property, the purchase
price shall be deposited by the Seller in the Certificate  Account maintained by
the Master  Servicer  pursuant  to  Section  3.01.  In the case of a  Substitute
Mortgage Loan, the Owner Mortgage Loan File relating  thereto shall be delivered
to the Trust Administrator and the Substitution Principal Amount,  together with
(i)  interest  on such  Substitution  Principal  Amount  at the  applicable  Net
Mortgage  Interest Rate to the following Due Date of such Mortgage Loan which is
being  substituted  for and (ii) an  amount  equal to the  aggregate  amount  of
unreimbursed  Periodic  Advances in respect of interest  previously  made by the
Servicer,  the Master Servicer or the Trust  Administrator  with respect to such
Mortgage  Loan,  shall be  deposited  in the  Certificate  Account.  The Monthly
Payment  on the  Substitute  Mortgage  Loan  for the Due  Date in the  month  of
substitution  shall not be part of the Trust  Estate.  Upon receipt by the Trust
Administrator  of written  notification of any such deposit signed by an officer
of the  Seller,  or the new Owner  Mortgage  Loan File,  as the case may be, the
Trust  Administrator shall release to the Seller the related Owner Mortgage Loan
File and shall execute and deliver such instrument of transfer or assignment, in
each case  without  recourse,  as shall be necessary to vest in the Seller legal
and beneficial  ownership of such  substituted  or repurchased  Mortgage Loan or
property.  It is  understood  and agreed  that the  obligation  of the Seller to
substitute a new Mortgage Loan for or  repurchase  any Mortgage Loan or property
as to which  such a  material  defect in a  constituent  document  exists  shall
constitute   the  sole  remedy   respecting   such  defect   available   to  the
Certificateholders,  the Trust  Administrator  on behalf of the  Trustee and the
Trustee  on  behalf  of  the  Certificateholders.   The  failure  of  the  Trust
Administrator to give any notice contemplated herein within forty-five (45) days
after the execution of this  Agreement  shall not affect or relieve the Seller's
obligation to repurchase any Mortgage Loan pursuant to this Section 2.02.

            The Trust  Administrator  may,  concurrently  with the execution and
delivery  hereof or at any time  thereafter,  enter into a  Custodial  Agreement
substantially  in the form of  Exhibit  E hereto  pursuant  to which  the  Trust
Administrator  appoints a Custodian to hold the Mortgage  Notes,  the Mortgages,
the assignments  and other  documents  related to the Mortgage Loans received by
the Trust  Administrator,  as agent for the  Trustee in trust for the benefit of
all  present  and future  Certificateholders,  which may  provide,  among  other
things,  that the Custodian shall conduct the review of such documents  required
under the first paragraph of this Section 2.02.

            Section 2.03      Representations   and  Warranties  of  the  Master
Servicer and the Seller.

            (a)   The Master  Servicer  hereby  represents  and  warrants to the
Trustee and the Trust Administrator for the benefit of Certificateholders  that,
as of the date of execution of this Agreement:

            (i)   The Master  Servicer is a national  banking  association  duly
      chartered  and  validly  existing in good  standing  under the laws of the
      United States;

            (ii)  The  execution  and  delivery of this  Agreement by the Master
      Servicer  and its  performance  and  compliance  with  the  terms  of this
      Agreement  will not violate  the Master  Servicer's  corporate  charter or
      by-laws or  constitute a default (or an event which,  with notice or lapse
      of time,  or both,  would  constitute a default)  under,  or result in the
      breach of, any material  contract,  agreement or other instrument to which
      the Master  Servicer is a party or which may be  applicable  to the Master
      Servicer or any of its assets;

            (iii) This  Agreement,  assuming due  authorization,  execution  and
      delivery  by  the  Trustee,   the  Trust  Administrator  and  the  Seller,
      constitutes a valid,  legal and binding obligation of the Master Servicer,
      enforceable  against it in  accordance  with the terms  hereof  subject to
      applicable bankruptcy,  insolvency,  reorganization,  moratorium and other
      laws  affecting  the  enforcement  of creditors'  rights  generally and to
      general  principles of equity,  regardless of whether such  enforcement is
      considered in a proceeding in equity or at law;

            (iv)  The  Master  Servicer  is not in default  with  respect to any
      order or  decree of any court or any  order,  regulation  or demand of any
      federal, state, municipal or governmental agency, which default might have
      consequences  that would  materially  and  adversely  affect the condition
      (financial  or  other)  or  operations  of  the  Master  Servicer  or  its
      properties or might have  consequences  that would affect its  performance
      hereunder; and

            (v)   No  litigation  is  pending  or,  to the  best  of the  Master
      Servicer's  knowledge,  threatened against the Master Servicer which would
      prohibit its entering into this  Agreement or performing  its  obligations
      under this Agreement.

            It is understood and agreed that the  representations and warranties
set forth in this Section 2.03(a) shall survive delivery of the respective Owner
Mortgage Loan Files to the Trust Administrator or the Custodian.

            (b)   The Seller hereby  represents  and warrants to the Trustee and
the Trust  Administrator for the benefit of  Certificateholders  that, as of the
date of execution of this Agreement, with respect to the Mortgage Loans, or each
Mortgage Loan, as the case may be:

            (i)   The  information  set forth in the Mortgage  Loan Schedule was
      true and correct in all material  respects at the date or dates respecting
      which such  information  is furnished  as  specified in the Mortgage  Loan
      Schedule;

            (ii)  Immediately prior to the transfer and assignment  contemplated
      herein, the Seller was the sole owner and holder of the Mortgage Loan free
      and clear of any and all liens, pledges,  charges or security interests of
      any nature and has full right and authority to sell and assign the same;

            (iii) The Mortgage is a valid, subsisting and enforceable first lien
      on the property therein described,  and the Mortgaged Property is free and
      clear of all encumbrances and liens having priority over the first lien of
      the  Mortgage   except  for  liens  for  real  estate  taxes  and  special
      assessments  not yet due and payable and liens or interests  arising under
      or as a result of any federal, state or local law, regulation or ordinance
      relating to hazardous wastes or hazardous substances,  and, if the related
      Mortgaged  Property is a  condominium  unit,  any lien for common  charges
      permitted by statute or homeowners  association fees; and if the Mortgaged
      Property consists of shares of a cooperative housing corporation, any lien
      for  amounts  due  to  the  cooperative  housing  corporation  for  unpaid
      assessments  or  charges  or  any  lien  of any  assignment  of  rents  or
      maintenance expenses secured by the real property owned by the cooperative
      housing  corporation;  and any  security  agreement,  chattel  mortgage or
      equivalent  document related to, and delivered to the Trust  Administrator
      or to the Custodian  with, any Mortgage  establishes in the Seller a valid
      and subsisting first lien on the property described therein and the Seller
      has full right to sell and assign the same to the Trustee;

            (iv)  Neither the Seller nor any prior holder of the Mortgage or the
      related  Mortgage  Note has modified the Mortgage or the related  Mortgage
      Note in any material  respect,  satisfied,  canceled or  subordinated  the
      Mortgage in whole or in part,  released the Mortgaged Property in whole or
      in part from the lien of the  Mortgage,  or  executed  any  instrument  of
      release, cancellation,  modification or satisfaction,  except in each case
      as is reflected in an agreement  delivered to the Trust  Administrator  or
      the Custodian pursuant to Section 2.01;

            (v)   All taxes, governmental  assessments,  insurance premiums, and
      water, sewer and municipal charges,  which previously became due and owing
      have been paid, or an escrow of funds has been established,  to the extent
      permitted by law, in an amount sufficient to pay for every such item which
      remains  unpaid;  and the Seller has not advanced  funds,  or received any
      advance  of  funds  by a party  other  than  the  Mortgagor,  directly  or
      indirectly  (except  pursuant to any  Subsidy  Loan  arrangement)  for the
      payment of any  amount  required  by the  Mortgage,  except  for  interest
      accruing from the date of the Mortgage Note or date of disbursement of the
      Mortgage Loan proceeds,  whichever is later,  to the day which precedes by
      thirty days the first Due Date under the related Mortgage Note;

            (vi)  The   Mortgaged   Property  is  undamaged   by  water,   fire,
      earthquake,  earth  movement  other  than  earthquake,  windstorm,  flood,
      tornado or similar  casualty  (excluding  casualty  from the  presence  of
      hazardous wastes or hazardous substances,  as to which the Seller makes no
      representations),  so as to affect  adversely  the value of the  Mortgaged
      Property  as  security  for the  Mortgage  Loan or the use for  which  the
      premises were intended and to the best of the Seller's knowledge, there is
      no proceeding pending or threatened for the total or partial  condemnation
      of the Mortgaged Property;

            (vii) The Mortgaged Property is free and clear of all mechanics' and
      materialmen's  liens or liens in the nature  thereof;  provided,  however,
      that this  warranty  shall be deemed  not to have been made at the time of
      the initial issuance of the Certificates if a title policy  affording,  in
      substance,  the same protection  afforded by this warranty is furnished to
      the Trust Administrator by the Seller;

            (viii)Except for Mortgage Loans secured by Co-op Shares and Mortgage
      Loans secured by  residential  long-term  leases,  the Mortgaged  Property
      consists of a fee simple estate in real property;  all of the improvements
      which are included for the purpose of determining  the appraised  value of
      the  Mortgaged  Property  lie wholly  within the  boundaries  and building
      restriction  lines  of such  property  and no  improvements  on  adjoining
      properties  encroach upon the Mortgaged  Property  (unless insured against
      under the related title insurance policy); and to the best of the Seller's
      knowledge, the Mortgaged Property and all improvements thereon comply with
      all  requirements  of any  applicable  zoning  and  subdivision  laws  and
      ordinances;

            (ix)  The Mortgage Loan meets, or is exempt from,  applicable  state
      or federal laws, regulations and other requirements,  pertaining to usury,
      and the Mortgage Loan is not usurious;

            (x)   To  the  best  of the  Seller's  knowledge,  all  inspections,
      licenses  and  certificates  required to be made or issued with respect to
      all occupied  portions of the Mortgaged  Property and, with respect to the
      use and occupancy of the same, including, but not limited to, certificates
      of  occupancy  and  fire  underwriting  certificates,  have  been  made or
      obtained from the appropriate authorities;

            (xi)  All  payments   required  to  be  made  up  to  the  Due  Date
      immediately  preceding  the Cut-Off Date for such  Mortgage Loan under the
      terms of the related Mortgage Note have been made and no Mortgage Loan had
      more than one delinquency in the 12 months preceding the Cut-Off Date;

            (xii) The Mortgage Note, the related  Mortgage and other  agreements
      executed in connection therewith are genuine, and each is the legal, valid
      and binding  obligation of the maker  thereof,  enforceable  in accordance
      with its terms,  except as such  enforcement may be limited by bankruptcy,
      insolvency, reorganization or other similar laws affecting the enforcement
      of  creditors'   rights   generally  and  by  general  equity   principles
      (regardless  of whether such  enforcement is considered in a proceeding in
      equity or at law); and, to the best of the Seller's knowledge, all parties
      to the Mortgage  Note and the  Mortgage had legal  capacity to execute the
      Mortgage  Note and the  Mortgage and each  Mortgage  Note and Mortgage has
      been duly and properly executed by the Mortgagor;

            (xiii)Any and all  requirements  of any federal,  state or local law
      with respect to the origination of the Mortgage Loans  including,  without
      limitation,  truth-in-lending, real estate settlement procedures, consumer
      credit protection,  equal credit opportunity or disclosure laws applicable
      to the Mortgage Loans have been complied with;

            (xiv) The proceeds of the Mortgage Loans have been fully  disbursed,
      there is no  requirement  for future  advances  thereunder and any and all
      requirements as to completion of any on-site or off-site  improvements and
      as to  disbursements  of any escrow funds therefor have been complied with
      (except for escrow funds for  exterior  items which could not be completed
      due to weather and escrow funds for the completion of swimming pools); and
      all costs, fees and expenses incurred in making,  closing or recording the
      Mortgage  Loan have been  paid,  except  recording  fees with  respect  to
      Mortgages not recorded as of the Closing Date;

            (xv)  The  Mortgage  Loan  (except any  Mortgage  Loan  secured by a
      Mortgaged Property located in any jurisdiction,  as to which an opinion of
      counsel of the type customarily  rendered in such  jurisdiction in lieu of
      title insurance is instead  received) is covered by an American Land Title
      Association mortgagee title insurance policy or other generally acceptable
      form of policy or insurance acceptable to FNMA or FHLMC, issued by a title
      insurer  acceptable  to  FNMA  or  FHLMC  insuring  the  originator,   its
      successors  and assigns,  as to the first priority lien of the Mortgage in
      the original principal amount of the Mortgage Loan and subject only to (A)
      the lien of current real property  taxes and  assessments  not yet due and
      payable,  (B)  covenants,  conditions  and  restrictions,  rights  of way,
      easements  and other  matters of public record as of the date of recording
      of such Mortgage  acceptable to mortgage lending  institutions in the area
      in which the Mortgaged Property is located or specifically  referred to in
      the appraisal  performed in connection with the origination of the related
      Mortgage Loan, (C) liens created  pursuant to any federal,  state or local
      law,  regulation or ordinance affording liens for the costs of clean-up of
      hazardous  substances  or  hazardous  wastes  or for  other  environmental
      protection  purposes and (D) such other  matters to which like  properties
      are  commonly  subject  which do not  individually,  or in the  aggregate,
      materially  interfere  with the  benefits of the  security  intended to be
      provided by the Mortgage; the Seller is the sole insured of such mortgagee
      title  insurance  policy,  the assignment to the Trust  Administrator,  on
      behalf of the Trustee,  of the Seller's  interest in such mortgagee  title
      insurance  policy does not require any consent of or  notification  to the
      insurer  which  has not  been  obtained  or  made,  such  mortgagee  title
      insurance policy is in full force and effect and will be in full force and
      effect and inure to the benefit of the Trust  Administrator,  on behalf of
      the Trustee, no claims have been made under such mortgagee title insurance
      policy, and no prior holder of the related Mortgage, including the Seller,
      has done, by act or omission,  anything which would impair the coverage of
      such mortgagee title insurance policy;

            (xvi) The Mortgaged  Property securing each Mortgage Loan is insured
      by an insurer  acceptable  to FNMA or FHLMC  against loss by fire and such
      hazards as are covered under a standard extended coverage endorsement,  in
      an amount which is not less than the lesser of 100% of the insurable value
      of the Mortgaged  Property and the  outstanding  principal  balance of the
      Mortgage Loan,  but in no event less than the minimum amount  necessary to
      fully  compensate for any damage or loss on a replacement  cost basis;  if
      the  Mortgaged  Property is a condominium  unit, it is included  under the
      coverage afforded by a blanket policy for the project; if upon origination
      of the Mortgage Loan, the  improvements on the Mortgaged  Property were in
      an area  identified  in the  Federal  Register  by the  Federal  Emergency
      Management  Agency as having  special  flood  hazards,  a flood  insurance
      policy meeting the  requirements of the current  guidelines of the Federal
      Insurance   Administration  is  in  effect  with  a  generally  acceptable
      insurance carrier,  in an amount  representing  coverage not less than the
      least of (A) the outstanding  principal  balance of the Mortgage Loan, (B)
      the full  insurable  value of the  Mortgaged  Property and (C) the maximum
      amount of insurance which was available under the National Flood Insurance
      Act of  1968,  as  amended;  and each  Mortgage  obligates  the  Mortgagor
      thereunder  to maintain  all such  insurance at the  Mortgagor's  cost and
      expense;

            (xvii) To the best of the Seller's  knowledge,  there is no default,
      breach,  violation or event of acceleration existing under the Mortgage or
      the related Mortgage Note and no event which,  with the passage of time or
      with  notice  and  the  expiration  of any  grace  or cure  period,  would
      constitute  a default,  breach,  violation or event of  acceleration;  the
      Seller  has  not  waived  any  default,  breach,  violation  or  event  of
      acceleration;  and no  foreclosure  action is currently  threatened or has
      been commenced with respect to the Mortgage Loan;

            (xviii)  No  Mortgage  Note or  Mortgage  is subject to any right of
      rescission,  set-off,  counterclaim  or defense,  including the defense of
      usury,  nor will the operation of any of the terms of the Mortgage Note or
      Mortgage,  or the  exercise of any right  thereunder,  render the Mortgage
      Note or Mortgage unenforceable,  in whole or in part, or subject it to any
      right of  rescission,  set-off,  counterclaim  or defense,  including  the
      defense of usury, and no such right of rescission,  set-off,  counterclaim
      or defense has been asserted with respect thereto;

            (xix) Each Mortgage Note is payable in monthly  payments,  resulting
      in complete amortization of the Mortgage Loan over a term of not more than
      360 months;

            (xx)  Each Mortgage  contains  customary and enforceable  provisions
      such as to render the rights and remedies of the holder  thereof  adequate
      for the realization  against the Mortgaged Property of the benefits of the
      security,  including  realization by judicial  foreclosure (subject to any
      limitation  arising from any  bankruptcy,  insolvency or other law for the
      relief of debtors), and there is no homestead or other exemption available
      to the Mortgagor which would interfere with such right of foreclosure;

            (xxi) To the  best of the  Seller's  knowledge,  no  Mortgagor  is a
      debtor in any state or federal bankruptcy or insolvency proceeding;

            (xxii) Each  Mortgaged  Property is located in the United States and
      consists of a one- to four-unit residential property,  which may include a
      detached  home,  townhouse,  condominium  unit or a unit in a planned unit
      development  or, in the case of Mortgage  Loans  secured by Co-op  Shares,
      leases or occupancy agreements;

            (xxiii)  The  Mortgage  Loan is a  "qualified  mortgage"  within the
      meaning of Section 860G(a)(3) of the Code;

            (xxiv) With respect to each Mortgage where a lost note affidavit has
      been delivered to the Trust Administrator in place of the related Mortgage
      Note, the related Mortgage Note is no longer in existence;

            (xxv) In the event that the  Mortgagor  is an inter  vivos  "living"
      trust,  (i) such trust is in compliance  with FNMA or FHLMC  standards for
      inter vivos trusts and (ii)  holding  title to the  Mortgaged  Property in
      such trust will not diminish any rights as a creditor  including the right
      to  full  title  to  the  Mortgaged  Property  in  the  event  foreclosure
      proceedings are initiated; and

            (xxvi) If the  Mortgage  Loan is secured by a long-term  residential
      lease,  (1) the lessor under the lease holds a fee simple  interest in the
      land; (2) the terms of such lease  expressly  permit the mortgaging of the
      leasehold estate, the assignment of the lease without the lessor's consent
      and the  acquisition  by the holder of the  Mortgage  of the rights of the
      lessee upon  foreclosure  or assignment in lieu of  foreclosure or provide
      the holder of the Mortgage with substantially similar protections; (3) the
      terms of such  lease do not (a) allow  the  termination  thereof  upon the
      lessee's  default  without the holder of the  Mortgage  being  entitled to
      receive  written  notice of, and  opportunity to cure,  such default,  (b)
      allow the  termination  of the lease in the event of damage or destruction
      as long as the  Mortgage is in  existence,  (c) prohibit the holder of the
      Mortgage from being insured (or receiving proceeds of insurance) under the
      hazard insurance policy or policies relating to the Mortgaged  Property or
      (d) permit any increase in rent other than  pre-established  increases set
      forth in the lease;  (4) the original  term of such lease is not less than
      15 years; (5) the term of such lease does not terminate  earlier than five
      years after the maturity date of the Mortgage  Note; and (6) the Mortgaged
      Property  is  located  in a  jurisdiction  in which  the use of  leasehold
      estates in  transferring  ownership in residential  properties is a widely
      accepted practice.

            Notwithstanding the foregoing,  no representations or warranties are
made by the Seller as to the environmental  condition of any Mortgaged Property;
the absence,  presence or effect of hazardous wastes or hazardous  substances on
any Mortgaged  Property;  any casualty  resulting from the presence or effect of
hazardous  wastes  or  hazardous  substances  on,  near or  emanating  from  any
Mortgaged  Property;  the  impact  on  Certificateholders  of any  environmental
condition  or  presence  of any  hazardous  substance  on or near any  Mortgaged
Property;  or the  compliance of any Mortgaged  Property with any  environmental
laws, nor is any agent,  person or entity  otherwise  affiliated with the Seller
authorized  or able to make any such  representation,  warranty or assumption of
liability relative to any Mortgaged Property. In addition, no representations or
warranties are made by the Seller with respect to the absence or effect of fraud
in the origination of any Mortgage Loan.

            It is understood and agreed that the  representations and warranties
set forth in this Section 2.03(b) shall survive delivery of the respective Owner
Mortgage Loan Files to the Trust Administrator and shall inure to the benefit of
the  Trust  Administrator,  on  behalf  of  the  Trustee,   notwithstanding  any
restrictive or qualified endorsement or assignment.

            (c)   Upon discovery by either the Seller, the Master Servicer,  the
Trust   Administrator,   the   Trustee  or  the   Custodian   that  any  of  the
representations  and  warranties  made in  subsection  (b) above is not accurate
(referred to herein as a "breach") and that such breach materially and adversely
affects the interests of the  Certificateholders  in the related  Mortgage Loan,
the party  discovering such breach shall give prompt written notice to the other
parties (any Custodian being so obligated under a Custodial  Agreement).  Within
60 days of the  earlier of its  discovery  or its  receipt of notice of any such
breach,  the Seller  shall cure such  breach in all  material  respects or shall
either (i)  repurchase  the Mortgage  Loan or any  property  acquired in respect
thereof  from the  Trust  Estate  at a price  equal  to (A)  100% of the  unpaid
principal  balance of such  Mortgage  Loan plus (B) accrued  interest at the Net
Mortgage  Interest Rate for such Mortgage Loan through the last day of the month
in which such  repurchase  took place or (ii) if within two years of the Startup
Day, or such other period permitted by the REMIC Provisions, substitute for such
Mortgage Loan in the manner described in Section 2.02. The purchase price of any
repurchase described in this paragraph and the Substitution Principal Amount, if
any, plus accrued  interest thereon and the other amounts referred to in Section
2.02, shall be deposited in the Certificate Account. It is understood and agreed
that the  obligation of the Seller to repurchase or substitute  for any Mortgage
Loan or property as to which such a breach has occurred and is continuing  shall
constitute   the   sole   remedy    respecting   such   breach    available   to
Certificateholders,  the Trust  Administrator  on behalf of the Trustee,  or the
Trustee on behalf of Certificateholders, and such obligation shall survive until
termination of the Trust Estate hereunder.

            Section 2.04      Execution and Delivery of Certificates.

            The Trust  Administrator  acknowledges  the  assignment to it of the
Mortgage  Loans and the  delivery of the Owner  Mortgage  Loan Files to it, and,
concurrently  with such delivery,  (i)  acknowledges  the issuance of and hereby
declares that it holds the Uncertificated  Lower-Tier Interests on behalf of the
Upper-Tier REMIC and  Certificateholders  and (ii) has executed and delivered to
or upon the  order  of the  Seller,  in  exchange  for the  Mortgage  Loans  and
Uncertificated  Lower-Tier  Interests together with all other assets included in
the  definition  of "Trust  Estate",  receipt  of which is hereby  acknowledged,
Certificates in authorized denominations which, together with the Uncertificated
Lower-Tier Interests, evidence ownership of the entire Trust Estate.

            Section 2.05      Designation   of   Certificates;   Designation  of
Startup Day and Latest Possible Maturity Date.

            The Seller  hereby  designates  the Classes of Class A  Certificates
(other than the Class A-8,  Class A-R and Class A-LR  Certificates),  each Class
A-8 Component and the Classes of Class B Certificates as the "regular interests"
and the Class A-R Certificate as the "residual interest" in the Upper-Tier REMIC
for the purposes of Code Sections 860G(a)(1) and 860G(a)(2),  respectively.  The
Seller hereby further  designates the Class A-L1 Interest,  Class A-L2 Interest,
Class A-L3  Interest,  Class A-L4  Interest,  Class  A-L5  Interest,  Class A-L6
Interest, Class A-L8 Interest, Class A-L10 Interest, Class A-L12 Interest, Class
A-L14  Interest,  Class  A-L16  Interest,  Class  A-L20  Interest,  Class  A-LPO
Interest,  Class A-LUR Interest, Class B-L1 Interest, Class B-L2 Interest, Class
B-L3 Interest,  Class B-L4 Interest, Class B-L5 Interest and Class B-L6 Interest
as classes of "regular  interests" and the Class A-LR  Certificate as the single
class of "residual  interest" in the  Lower-Tier  REMIC for the purposes of Code
Sections  860G(a)(1) and  860G(a)(2),  respectively.  The Closing Date is hereby
designated as the "Startup Day" of each of the  Upper-Tier  REMIC and Lower-Tier
REMIC  within the  meaning of Code  Section  860G(a)(9).  The  "latest  possible
maturity date" of the regular  interests in the Upper-Tier  REMIC and Lower-Tier
REMIC is July 25, 2029 for purposes of Code Section 860G(a)(1).


<PAGE>






                                   ARTICLE III

                  ADMINISTRATION OF THE TRUST ESTATE: SERVICING
                              OF THE MORTGAGE LOANS

            Section 3.01      Certificate Account.

            (a)   The Master Servicer shall establish and maintain a Certificate
Account for the deposit of funds received by the Master Servicer with respect to
the Mortgage Loans  serviced by each Servicer  pursuant to each of the Servicing
Agreements.  Such account shall be maintained as an Eligible Account. The Master
Servicer  shall give notice to each  Servicer  and the Seller of the location of
the Certificate Account and of any change in the location thereof.

            (b)   The Master Servicer shall deposit into the Certificate Account
on the day of receipt  thereof  all  amounts  received  by it from any  Servicer
pursuant to any of the Servicing Agreements, any amounts received by it upon the
sale of any (A) MLCC Additional Collateral pursuant to the terms of the Mortgage
100SM Pledge Agreement,  the Parent Power(R) Guaranty and Security Agreement for
Securities  Account or the Parent Power(R) Guaranty Agreement for Real Estate or
(B) NOVUS  Additional  Collateral  pursuant to the terms of the Dual  Collateral
Pledge Agreement or any amounts received pursuant to the MLCC Surety Bond or the
NOVUS Surety Bond, and shall, in addition,  deposit into the Certificate Account
the following amounts, in the case of amounts specified in clause (i), not later
than the Distribution  Date on which such amounts are required to be distributed
to Certificateholders  and, in the case of the amounts specified in clause (ii),
not later than the Business Day next following the day of receipt and posting by
the Master Servicer:

               (i)Periodic  Advances  pursuant  to Section  3.03(a)  made by the
      Master Servicer or the Trust Administrator,  if any and any amounts deemed
      received by the Master Servicer pursuant to Section 3.01(d); and

               (ii) in the case of any Mortgage Loan that is  repurchased by the
      Seller pursuant to Section 2.02 or 2.03 or that is auctioned by the Master
      Servicer  pursuant to Section  3.08 or  purchased  by the Master  Servicer
      pursuant to Section 3.08 or 9.01,  the purchase  price  therefor or, where
      applicable,  any Substitution Principal Amount and any amounts received in
      respect of the interest portion of unreimbursed Periodic Advances.

            (c)   The Master  Servicer shall cause the funds in the  Certificate
Account to be invested in Eligible  Investments.  No such  Eligible  Investments
will be sold or  disposed  of at a gain  prior to  maturity  unless  the  Master
Servicer has received an Opinion of Counsel or other evidence satisfactory to it
that such sale or  disposition  will not cause the Trust Estate to be subject to
Prohibited Transactions Tax, otherwise subject the Trust Estate to tax, or cause
either of the Upper-Tier  REMIC or the Lower-Tier  REMIC to fail to qualify as a
REMIC while any  Certificates  are  outstanding.  Any amounts  deposited  in the
Certificate  Account  prior to the  Distribution  Date shall be invested for the
account  of the Master  Servicer  and any  investment  income  thereon  shall be
additional  compensation to the Master Servicer for services rendered under this
Agreement.  The amount of any losses incurred in respect of any such investments
shall be deposited in the Certificate  Account by the Master Servicer out of its
own funds immediately as realized.

            (d)   For purposes of this  Agreement,  the Master  Servicer will be
deemed to have received from a Servicer on the  applicable  Remittance  Date for
such funds all amounts deposited by such Servicer into the Custodial Account for
P&I maintained in accordance with the applicable  Servicing  Agreement,  if such
Custodial  Account  for  P&I is not an  Eligible  Account  as  defined  in  this
Agreement,  to the extent such amounts are not  actually  received by the Master
Servicer  on such  Remittance  Date as a result of the  bankruptcy,  insolvency,
receivership or other financial distress of the depository  institution in which
such  Custodial  Account  for P&I is being held.  To the extent that  amounts so
deemed to have been received by the Master Servicer are subsequently remitted to
the Master  Servicer,  the Master  Servicer  shall be  entitled  to retain  such
amounts.

            Section 3.02      Permitted   Withdrawals   from   the   Certificate
Account.

            (a)   The Master Servicer may, from time to time,  make  withdrawals
from the Certificate Account for the following purposes (limited, in the case of
Servicer  reimbursements,  to cases where funds in the respective  Custodial P&I
Account are not sufficient therefor):

            (i)   to reimburse the Master Servicer,  the Trust  Administrator or
      any  Servicer  for Periodic  Advances  made by the Master  Servicer or the
      Trust  Administrator  pursuant to Section 3.03(a) or any Servicer pursuant
      to any Servicing  Agreement with respect to previous  Distribution  Dates,
      such right to  reimbursement  pursuant to this subclause (i) being limited
      to  amounts  received  on or  in  respect  of  particular  Mortgage  Loans
      (including,  for this  purpose,  Liquidation  Proceeds,  REO  Proceeds and
      proceeds from the purchase,  sale,  repurchase or substitution of Mortgage
      Loans pursuant to Sections 2.02,  2.03, 3.08 or 9.01) respecting which any
      such Periodic Advance was made;

            (ii)  to reimburse  any Servicer,  the Master  Servicer or the Trust
      Administrator for any Periodic  Advances  determined in good faith to have
      become  Nonrecoverable  Advances  provided,  however,  that any portion of
      Nonrecoverable   Advances  representing  Fixed  Retained  Yield  shall  be
      reimbursable only from amounts  constituting  Fixed Retained Yield and not
      from the assets of the Trust Estate;

            (iii)  to  reimburse  the  Master  Servicer  or  any  Servicer  from
      Liquidation  Proceeds for Liquidation Expenses and for amounts expended by
      the Master  Servicer or any Servicer  pursuant  hereto or to any Servicing
      Agreement,  respectively, in good faith in connection with the restoration
      of damaged property or for foreclosure expenses;

            (iv)  from any  Mortgagor  payment on account of  interest  or other
      recovery  (including  Net  REO  Proceeds)  with  respect  to a  particular
      Mortgage  Loan,  to pay the  Master  Servicing  Fee with  respect  to such
      Mortgage Loan to the Master Servicer;

            (v)   to reimburse  the Master  Servicer,  any Servicer or the Trust
      Administrator  (or, in certain cases, the Seller) for expenses incurred by
      it (including taxes paid on behalf of the Trust Estate) and recoverable by
      or reimbursable to it pursuant to Section 3.03(c),  3.03(d) or 6.03 or the
      second  sentence  of  Section  8.14(a)  or  pursuant  to  such  Servicer's
      Servicing Agreement, provided such expenses are "unanticipated" within the
      meaning of the REMIC Provisions;

            (vi)  to pay to the Seller or other  purchaser  with respect to each
      Mortgage  Loan or  property  acquired  in  respect  thereof  that has been
      repurchased  or  replaced  pursuant to Section  2.02 or 2.03 or  auctioned
      pursuant to Section 3.08 or to pay to the Master  Servicer with respect to
      each Mortgage Loan or property  acquired in respect  thereof that has been
      purchased  pursuant to Section 3.08 or 9.01, all amounts  received thereon
      and not  required  to be  distributed  as of the date on which the related
      repurchase  or  purchase   price  or  Scheduled   Principal   Balance  was
      determined;

            (vii) to remit  funds to the Paying  Agent in the amounts and in the
      manner provided for herein;

            (viii)to  pay to the  Master  Servicer  any  interest  earned  on or
      investment income with respect to funds in the Certificate Account;

            (ix)  to  pay  to  the  Master  Servicer  or  any  Servicer  out  of
      Liquidation Proceeds allocable to interest the amount of any unpaid Master
      Servicing  Fee or  Servicing  Fee (as  adjusted  pursuant  to the  related
      Servicing  Agreement) and any unpaid assumption fees, late payment charges
      or other Mortgagor charges on the related Mortgage Loan;

            (x)   to withdraw from the Certificate  Account any amount deposited
      in the Certificate Account that was not required to be deposited therein;

            (xi)  to clear and terminate  the  Certificate  Account  pursuant to
      Section 9.01; and

            (xii) to pay to  Norwest  Mortgage  from any  Mortgagor  payment  on
      account of interest or other  recovery  (including  Net REO Proceeds) with
      respect to a particular  Mortgage Loan, the Fixed Retained  Yield, if any,
      with respect to such Mortgage Loan; provided,  however,  that with respect
      to any payment of interest received by the Master Servicer in respect of a
      Mortgage Loan  (whether  paid by the Mortgagor or received as  Liquidation
      Proceeds,  Insurance  Proceeds or  otherwise)  which is less than the full
      amount of interest then due with respect to such Mortgage Loan,  only that
      portion of such payment of interest  that bears the same  relationship  to
      the total amount of such payment of interest as the Fixed  Retained  Yield
      Rate,  if any,  in respect  of such  Mortgage  Loan bears to the  Mortgage
      Interest Rate shall be allocated to the Fixed  Retained Yield with respect
      thereto.

            (b)   The  Master   Servicer   shall  keep  and  maintain   separate
accounting,  on a Mortgage  Loan by  Mortgage  Loan  basis,  for the  purpose of
justifying any payment to and withdrawal from the Certificate Account.

            Section 3.03      Advances    by   Master    Servicer    and   Trust
Administrator.

            (a)   In the  event an  Other  Servicer  fails to make any  required
Periodic  Advances of principal  and interest on a Mortgage  Loan as required by
the related Other Servicing  Agreement prior to the Distribution  Date occurring
in the month during  which such  Periodic  Advance is due,  the Master  Servicer
shall make Periodic  Advances to the extent  provided  hereby.  In addition,  if
under the terms of an Other Servicing Agreement,  the applicable Servicer is not
required to make  Periodic  Advances  on a Mortgage  Loan or REO  Mortgage  Loan
through the  liquidation  of such Mortgage Loan or REO Mortgage Loan, the Master
Servicer to the extent provided hereby shall make the Periodic  Advances thereon
during the period the Servicer is not  obligated to do so. In the event  Norwest
Mortgage fails to make any required  Periodic Advances of principal and interest
on a Mortgage Loan as required by the Norwest  Servicing  Agreement prior to the
Distribution  Date occurring in the month during which such Periodic  Advance is
due, the Trust Administrator shall, to the extent required by Section 8.15, make
such Periodic  Advance to the extent  provided  hereby,  provided that the Trust
Administrator  has previously  received the  certificate of the Master  Servicer
described in the following  sentence.  The Master  Servicer shall certify to the
Trust Administrator with respect to any such Distribution Date (i) the amount of
Periodic  Advances  required of Norwest Mortgage or such Other Servicer,  as the
case may be, (ii) the amount actually advanced by Norwest Mortgage or such Other
Servicer,  (iii) the amount that the Trust  Administrator  or Master Servicer is
required  to advance  hereunder,  including  any amount the Master  Servicer  is
required to advance  pursuant to the second sentence of this section 3.03(a) and
(iv) whether the Master Servicer has determined that it reasonably believes that
such Periodic Advance is a Nonrecoverable Advance. Amounts advanced by the Trust
Administrator  or Master Servicer shall be deposited in the Certificate  Account
on the related  Distribution Date.  Notwithstanding  the foregoing,  neither the
Master Servicer nor the Trust Administrator will be obligated to make a Periodic
Advance that it reasonably  believes to be a Nonrecoverable  Advance.  The Trust
Administrator  may  conclusively  rely  for any  determination  to be made by it
hereunder  upon the  determination  of the Master  Servicer  as set forth in its
certificate.

            (b)   To the  extent an Other  Servicer  fails to make an advance on
account of the taxes or  insurance  premiums  with  respect  to a Mortgage  Loan
required pursuant to the related Other Servicing Agreement,  the Master Servicer
shall,  if the Master  Servicer  knows of such failure of the Servicer,  advance
such funds and take such steps as are  necessary  to pay such taxes or insurance
premiums.  To the extent Norwest Mortgage fails to make an advance on account of
the taxes or  insurance  premiums  with  respect  to a  Mortgage  Loan  required
pursuant to the Norwest Servicing  Agreement,  the Master Servicer shall, if the
Master Servicer knows of such failure of Norwest Mortgage,  certify to the Trust
Administrator   that  such   failure  has   occurred.   Upon   receipt  of  such
certification,  the Trust  Administrator  shall advance such funds and take such
steps as are necessary to pay such taxes or insurance premiums.

            (c)   The Master Servicer and the Trust  Administrator shall each be
entitled to be reimbursed from the Certificate  Account for any Periodic Advance
made by it under Section 3.03(a) to the extent  described in Section  3.02(a)(i)
and (a)(ii).  The Master Servicer and the Trust  Administrator shall be entitled
to be reimbursed  pursuant to Section  3.02(a)(v) for any advance by it pursuant
to Section 3.03(b).  The Master Servicer shall diligently pursue  restoration of
such amount to the  Certificate  Account from the related  Servicer.  The Master
Servicer  shall,  to the extent it has not already  done so, upon the request of
the Trust Administrator,  withdraw from the Certificate Account and remit to the
Trust  Administrator any amounts to which the Trust Administrator is entitled as
reimbursement pursuant to Section 3.02 (a)(i), (ii) and (v).

            (d)   Except as  provided in Section  3.03(a)  and (b),  neither the
Master Servicer nor the Trust  Administrator shall be required to pay or advance
any amount  which any  Servicer  was  required,  but  failed,  to deposit in the
Certificate Account.

            Section 3.04      Trust Administrator to Cooperate; Release of Owner
Mortgage Loan Files.

            Upon the receipt by the Master  Servicer of a Request for Release in
connection  with the deposit by a Servicer into the  Certificate  Account of the
proceeds from a Liquidated  Loan or of a Prepayment in Full, the Master Servicer
shall  confirm  to the  Trust  Administrator  that all  amounts  required  to be
remitted to the  Certificate  Account in connection with such Mortgage Loan have
been so  deposited,  and shall  deliver  such  Request  for Release to the Trust
Administrator.  The Trust Administrator  shall, within five Business Days of its
receipt of such a Request for Release,  release the related Owner  Mortgage Loan
File to the  Master  Servicer  or such  Servicer,  as  requested  by the  Master
Servicer. No expenses incurred in connection with any instrument of satisfaction
or deed of reconveyance shall be chargeable to the Certificate Account.

            From  time  to  time  and  as  appropriate   for  the  servicing  or
foreclosure of any Mortgage Loan, including but not limited to, collection under
any insurance policies, or to effect a partial release of any Mortgaged Property
from the lien of the Mortgage,  the Servicer of such Mortgage Loan shall deliver
to the Master Servicer a Request for Release. Upon the Master Servicer's receipt
of any such Request for Release, the Master Servicer shall promptly forward such
request to the Trust  Administrator and the Trust  Administrator  shall,  within
five Business  Days,  release the related Owner Mortgage Loan File to the Master
Servicer or such Servicer, as requested by the Master Servicer. Any such Request
for Release shall obligate the Master Servicer or such Servicer, as the case may
be,  to return  each and  every  document  previously  requested  from the Owner
Mortgage Loan File to the Trust  Administrator by the twenty-first day following
the release  thereof,  unless (i) the Mortgage Loan has been  liquidated and the
Liquidation  Proceeds  relating to the Mortgage Loan have been  deposited in the
Certificate  Account or (ii) the Owner  Mortgage  Loan File or such document has
been delivered to an attorney,  or to a public trustee or other public  official
as required by law, for purposes of initiating or pursuing legal action or other
proceedings for the foreclosure of the Mortgaged  Property either  judicially or
non-judicially, and the Master Servicer has delivered to the Trust Administrator
a certificate of the Master Servicer or such Servicer  certifying as to the name
and  address  of the  Person  to which  such  Owner  Mortgage  Loan File or such
document  was  delivered  and the  purpose or purposes  of such  delivery.  Upon
receipt of an  Officer's  Certificate  of the Master  Servicer or such  Servicer
stating that such Mortgage Loan was liquidated and that all amounts  received or
to be received in  connection  with such  liquidation  which are  required to be
deposited  into the  Certificate  Account have been so  deposited,  or that such
Mortgage Loan has become an REO Mortgage  Loan, the Request for Release shall be
released by the Trust Administrator to the Master Servicer or such Servicer,  as
appropriate.

            Upon written certification of the Master Servicer or the Servicer of
a Mortgage Loan, the Trust Administrator shall execute and deliver to the Master
Servicer or such Servicer, as directed by the Master Servicer,  court pleadings,
requests for trustee's sale or other  documents  necessary to the foreclosure or
trustee's sale in respect of a Mortgaged Property or to any legal action brought
to obtain judgment  against any Mortgagor on the Mortgage Note or Mortgage or to
obtain a  deficiency  judgment,  or to  enforce  any  other  remedies  or rights
provided by the Mortgage  Note or Mortgage or  otherwise  available at law or in
equity.  Each such certification  shall include a request that such pleadings or
documents  be executed  by the Trust  Administrator  and a  statement  as to the
reason such  documents or pleadings  are  required  and that the  execution  and
delivery  thereof by the Trust  Administrator  will not  invalidate or otherwise
affect the lien of the Mortgage,  except for the termination of such a lien upon
completion of the foreclosure proceeding or trustee's sale.

            Section 3.05      Reports to the  Trustee  and Trust  Administrator;
Annual Compliance Statements.

            (a)   Not later  than 15 days  after  each  Distribution  Date,  the
Master  Servicer  shall  deliver to the  Trustee and the Trust  Administrator  a
statement setting forth the status of the Certificate Account as of the close of
business on such Distribution Date stating that all distributions required to be
made by the Master  Servicer  under this  Agreement  have been made (or,  if any
required  distribution has not been made by the Master Servicer,  specifying the
nature  and  status  thereof)  and  showing,  for  the  period  covered  by such
statement,  the  aggregate  amount of deposits  into and  withdrawals  from such
account for each category of deposit and  withdrawal  specified in Sections 3.01
and 3.02.  Such  statement  may be in the form of the then  current FNMA monthly
accounting  report  for  its  Guaranteed  Mortgage   Pass-Through  Program  with
appropriate  additions and changes, and shall also include information as to the
aggregate unpaid principal  balance of all of the Mortgage Loans as of the close
of business as of the last day of the calendar month immediately  preceding such
Distribution  Date.  Copies of such  statement  shall be  provided  by the Trust
Administrator  to any  Certificateholder  upon written  request,  provided  such
statement is delivered, or caused to be delivered, by the Master Servicer to the
Trust Administrator.

            (b)   The Master Servicer shall deliver to the Trustee and the Trust
Administrator  on or before  April 30 of each year, a  certificate  signed by an
officer of the Master  Servicer,  certifying  that (i) such officer has reviewed
the  activities of the Master  Servicer  during the  preceding  calendar year or
portion thereof and its performance under this agreement and (ii) to the best of
such  officer's  knowledge,  based  on such  review,  the  Master  Servicer  has
performed and fulfilled its duties,  responsibilities and obligations under this
agreement in all material respects throughout such year, or, if there has been a
default in the fulfillment of any such duties,  responsibilities or obligations,
specifying  each such  default  known to such  officer and the nature and status
thereof,  and, (iii) (A) the Master Servicer has received from each Servicer any
financial statements,  officer's certificates,  accountant's statements or other
information  required  to be  provided  to the Master  Servicer  pursuant to the
related  Servicing  Agreement and (B) to the best of such  officer's  knowledge,
based on a review of the  information  provided  to the Master  Servicer by each
Servicer as  described  in (iii)(A)  above,  each  Servicer  has  performed  and
fulfilled  its  duties,  responsibilities  and  obligations  under  the  related
Servicing  Agreement in all material respects throughout such year, or, if there
has been a default in the  fulfillment of any such duties,  responsibilities  or
obligations,  specifying  each such default known to such officer and the nature
and status thereof.  Copies of such officers'  certificate  shall be provided by
the Trust Administrator to any  Certificateholder  upon written request provided
such certificate is delivered, or caused to be delivered, by the Master Servicer
to the Trust Administrator.

            Section 3.06      Title,  Management  and  Disposition  of  Any  REO
Mortgage Loan.

            The Master  Servicer  shall  ensure that each REO  Mortgage  Loan is
administered  by the  related  Servicer  at all  times so that it  qualifies  as
"foreclosure  property" under the REMIC Provisions and that it does not earn any
"net income from  foreclosure  property" which is subject to tax under the REMIC
Provisions.  In the  event  that a  Servicer  is unable  to  dispose  of any REO
Mortgage Loan within the period  mandated by each of the  Servicing  Agreements,
the Master Servicer shall monitor such Servicer to verify that such REO Mortgage
Loan is auctioned to the highest  bidder within the period so specified.  In the
event of any such sale of REO Mortgage Loan, the Trust  Administrator  shall, at
the  written  request  of the Master  Servicer  and upon  being  supported  with
appropriate  forms  therefor,  within five  Business  Days of the deposit by the
Master  Servicer of the  proceeds of such sale or auction  into the  Certificate
Account,  release or cause to be released to the entity identified by the Master
Servicer the related Owner  Mortgage  Loan File and Servicer  Mortgage Loan File
and shall execute and deliver such  instruments  of transfer or  assignment,  in
each  case  without  recourse,  as shall  be  necessary  to vest in the  auction
purchaser title to the REO Mortgage Loan and the Trust  Administrator shall have
no  further  responsibility  with  regard to such  Owner  Mortgage  Loan File or
Servicer  Mortgage  Loan  File.  Neither  the Trust  Administrator,  the  Master
Servicer nor any Servicer,  acting on behalf of the Trust Estate,  shall provide
financing from the Trust Estate to any purchaser of an REO Mortgage Loan.

            Section 3.07      Amendments to Servicing  Agreements,  Modification
of Standard Provisions.

            (a)   Subject to the prior  written  consent of the  Trustee and the
Trust Administrator  pursuant to Section 3.07(b),  the Master Servicer from time
to time may, to the extent permitted by the applicable Servicing Agreement, make
such  modifications  and  amendments to such  Servicing  Agreement as the Master
Servicer  deems  necessary or appropriate to confirm or carry out more fully the
intent and purpose of such Servicing Agreement and the duties,  responsibilities
and obligations to be performed by the Servicer  thereunder.  Such modifications
may only be made if they are consistent with the REMIC Provisions,  as evidenced
by an  Opinion  of  Counsel.  Prior  to  the  issuance  of any  modification  or
amendment,  the  Master  Servicer  shall  deliver to the  Trustee  and the Trust
Administrator such Opinion of Counsel and an Officer's Certificate setting forth
(i) the provision that is to be modified or amended,  (ii) the  modification  or
amendment  that the  Master  Servicer  desires  to issue and (iii) the reason or
reasons for such proposed amendment or modification.

            (b)   The Trustee and the Trust  Administrator  shall consent to any
amendment or supplement to a Servicing Agreement proposed by the Master Servicer
pursuant to Section  3.07(a),  which consent and amendment shall not require the
consent  of any  Certificateholder  if it is (i) for the  purpose  of curing any
mistake  or  ambiguity  or to  further  effect  or  protect  the  rights  of the
Certificateholders  or (ii) for any other  purpose,  provided such  amendment or
supplement  for such other  purpose  cannot  reasonably be expected to adversely
affect  Certificateholders.  The lack of  reasonable  expectation  of an adverse
effect on  Certificateholders  may be  established  through the  delivery to the
Trustee and the Trust  Administrator of (i) an Opinion of Counsel to such effect
or (ii)  written  notification  from each Rating  Agency to the effect that such
amendment  or  supplement  will not result in  reduction  of the current  rating
assigned  by that Rating  Agency to the  Certificates.  Notwithstanding  the two
immediately  preceding sentences,  either the Trustee or the Trust Administrator
may, in its discretion,  decline to enter into or consent to any such supplement
or  amendment  if its own  rights,  duties  or  immunities  shall  be  adversely
affected.

            (c) (i)  Notwithstanding  anything to the  contrary in this  Section
3.07,  the Master  Servicer  from time to time may,  without  the consent of any
Certificateholder,  the  Trustee,  or the  Trust  Administrator,  enter  into an
amendment (A) to an Other Servicing Agreement for the purpose of (i) eliminating
or reducing  Month End Interest and (ii)  providing  for the  remittance of Full
Unscheduled Principal Receipts by the applicable Servicer to the Master Servicer
not later than the 24th day of each month (or if such day is not a Business Day,
on the previous Business Day) or (B) to the Norwest Servicing  Agreement for the
purpose of changing the applicable Remittance Date to the 18th day of each month
(or if such day is not a Business Day, on the previous Business Day).

               (ii) The Master  Servicer  may direct  Norwest  Mortgage to enter
      into an  amendment  to the Norwest  Servicing  Agreement  for the purposes
      described in Sections 3.07(c)(i)(B) and 10.01(b)(iii).

            Section 3.08      Oversight of Servicing.

            The  Master  Servicer  shall  supervise,  monitor  and  oversee  the
servicing of the Mortgage  Loans by each  Servicer and the  performance  by each
Servicer of all services,  duties,  responsibilities and obligations  (including
the  obligation  to maintain an Errors and Omissions  Policy and Fidelity  Bond)
that are to be  observed  or  performed  by the  Servicer  under its  respective
Servicing  Agreement.  In  performing  its  obligations  hereunder,  the  Master
Servicer  shall  act in a  manner  consistent  with  Accepted  Master  Servicing
Practices  and  with  the  Trustee's  and  the  Trust  Administrator's  and  the
Certificateholders'  reliance on the Master Servicer, and in a manner consistent
with the terms and provisions of any insurance  policy required to be maintained
by the  Master  Servicer  or any  Servicer  pursuant  to this  Agreement  or any
Servicing  Agreement.  The  Master  Servicer  acknowledges  that prior to taking
certain actions required to service the Mortgage Loans, each Servicing Agreement
provides that the Servicer  thereunder  must notify,  consult  with,  obtain the
consent of or otherwise  follow the  instructions  of the Master  Servicer.  The
Master Servicer is also given  authority to waive  compliance by a Servicer with
certain provisions of its Servicing Agreement. In each such instance, the Master
Servicer  shall  promptly  instruct such  Servicer or otherwise  respond to such
Servicer's  request. In no event will the Master Servicer instruct such Servicer
to take any  action,  give any  consent  to  action  by such  Servicer  or waive
compliance  by such Servicer  with any  provision of such  Servicer's  Servicing
Agreement if any resulting  action or failure to act would be inconsistent  with
the  requirements  of the Rating  Agencies that rated the  Certificates or would
otherwise have an adverse effect on the  Certificateholders.  Any such action or
failure   to  act   shall  be  deemed   to  have  an   adverse   effect  on  the
Certificateholders  if such  action or failure to act either  results in (i) the
downgrading  of the rating  assigned by any Rating  Agency to the  Certificates,
(ii) the loss by the Upper-Tier  REMIC or the  Lower-Tier  REMIC of REMIC status
for  federal  income tax  purposes  or (iii) the  imposition  of any  Prohibited
Transaction  Tax or any  federal  taxes on  either  the  Upper-Tier  REMIC,  the
Lower-Tier REMIC or the Trust Estate.  The Master Servicer shall have full power
and  authority  in its sole  discretion  to take any action with  respect to the
Trust  Estate  as may be  necessary  or  advisable  to avoid  the  circumstances
specified including clause (ii) or (iii) of the preceding sentence.

            For the  purposes  of  determining  whether  any  modification  of a
Mortgage  Loan  shall be  permitted  by the Trust  Administrator  or the  Master
Servicer, such modification shall be construed as a substitution of the modified
Mortgage Loan for the Mortgage Loan originally  deposited in the Trust Estate if
it  would  be  a  "significant  modification"  within  the  meaning  of  Section
1.860G-2(b)  of the  regulations  of the U.S.  Department  of the  Treasury.  No
modification  shall be  approved  unless (i) the  modified  Mortgage  Loan would
qualify as a Substitute  Mortgage  Loan under Section 2.02 and (ii) with respect
to any  modification  that occurs more than three  months after the Closing Date
and is not the result of a default or a reasonably foreseeable default under the
Mortgage  Loan,  there is  delivered  to the Trust  Administrator  an Opinion of
Counsel (at the expense of the party seeking to modify the Mortgage Loan) to the
effect that such modification  would not be treated as giving rise to a new debt
instrument  for  federal  income tax  purposes  as  described  in the  preceding
sentence.

            During the term of this Agreement, the Master Servicer shall consult
fully with each  Servicer as may be  necessary  from time to time to perform and
carry out the Master  Servicer's  obligations  hereunder and otherwise  exercise
reasonable  efforts to  encourage  such  Servicer  to perform  and  observe  the
covenants,  obligations  and  conditions to be performed or observed by it under
its Servicing Agreement.

            The relationship of the Master Servicer to the Trustee and the Trust
Administrator  under this  Agreement is intended by the parties to be that of an
independent contractor and not that of a joint venturer, partner or agent.

            The Master  Servicer shall  administer the Trust Estate on behalf of
the Trustee and shall have full power and authority, acting alone or (subject to
Section  6.06) through one or more  subcontractors,  to do any and all things in
connection  with such  administration  which it may deem necessary or desirable.
Upon the execution and delivery of this Agreement,  and from time to time as may
be required  thereafter,  the Trust Administrator on behalf of the Trustee shall
furnish the Master  Servicer or its  subcontractors  with any powers of attorney
and such other documents as may be necessary or appropriate to enable the Master
Servicer to carry out its administrative duties hereunder.

            The Seller  shall be  entitled to  repurchase  at its option (i) any
defaulted  Mortgage  Loan or any Mortgage Loan as to which default is reasonably
foreseeable from the Trust Estate if, in the Seller's  judgment,  the default is
not likely to be cured by the  Mortgagor or (ii) any Mortgage  Loan in the Trust
Estate  which,  pursuant  to  paragraph  5(b)  of  the  Mortgage  Loan  Purchase
Agreement,  Norwest  Mortgage  requests the Seller to repurchase  and to sell to
Norwest Mortgage to facilitate the exercise of Norwest Mortgage's rights against
the  originator or a prior holder of such Mortgage  Loan. The purchase price for
any such  Mortgage  Loan shall be 100% of the unpaid  principal  balance of such
Mortgage Loan plus accrued  interest  thereon at the Mortgage  Interest Rate for
such Mortgage Loan,  through the last day of the month in which such  repurchase
occurs.  Upon the receipt of such  purchase  price,  the Master  Servicer  shall
provide to the Trust  Administrator the  certification  required by Section 3.04
and the Trust Administrator and the Custodian, if any, shall promptly release to
the Seller the Owner  Mortgage  Loan File  relating to the  Mortgage  Loan being
repurchased.

            In the event that (i) the  Master  Servicer  determines  at any time
that,  notwithstanding  the  representations and warranties set forth in Section
2.03(b),  any Mortgage Loan is not a "qualified  mortgage" within the meaning of
Section  860G of the Code and (ii) the Master  Servicer is unable to enforce the
obligation of the Seller to purchase such Mortgage Loan pursuant to Section 2.02
within two months of such  determination,  the Master  Servicer shall cause such
Mortgage  Loan to be auctioned  to the highest  bidder and sold out of the Trust
Estate no later than the date 90 days after such determination.  In the event of
any such sale of a Mortgage Loan, the Trust Administrator  shall, at the written
request of the Master Servicer and upon being supported with  appropriate  forms
therefor, within five Business Days of the deposit by the Master Servicer of the
proceeds of such auction into the  Certificate  Account,  release or cause to be
released to the entity  identified  by the Master  Servicer  the  related  Owner
Mortgage Loan File and Servicer Mortgage Loan File and shall execute and deliver
such instruments of transfer or assignment,  in each case without  recourse,  as
shall be necessary to vest in the auction  purchaser  title to the Mortgage Loan
and the Trust Administrator shall have no further  responsibility with regard to
such Owner Mortgage Loan File or Servicer Mortgage Loan File.  Neither the Trust
Administrator,  the Master  Servicer nor any  Servicer,  acting on behalf of the
Trust  Administrator,  shall  provide  financing  from the  Trust  Estate to any
purchaser of a Mortgage Loan.

            The Master Servicer,  on behalf of the Trust  Administrator,  shall,
pursuant to the Servicing  Agreements,  object to the foreclosure upon, or other
related  conversion of the  ownership of, any Mortgaged  Property by the related
Servicer if (i) the Master  Servicer  believes  such  Mortgaged  Property may be
contaminated  with or affected by hazardous  wastes or hazardous  substances  or
(ii) such Servicer does not agree to administer  such Mortgaged  Property,  once
the related  Mortgage Loan becomes an REO Mortgage Loan, in a manner which would
not  result  in a  federal  tax  being  imposed  upon the  Trust  Estate  or the
Upper-Tier REMIC or Lower-Tier REMIC.

            MLCC Additional  Collateral and NOVUS  Additional  Collateral may be
liquidated and the proceeds applied to cover any shortfalls upon the liquidation
of a Mortgaged Property;  provided,  however,  that the Trust Estate in no event
shall acquire  ownership of either the MLCC  Additional  Collateral or the NOVUS
Additional  Collateral  unless the Trust  Administrator  shall have  received an
Opinion of Counsel that such ownership  shall not cause the Trust Estate to fail
to qualify as two separate REMICs or subject either REMIC to any tax.

            The Master  Servicer  may enter into a special  servicing  agreement
with an unaffiliated  holder of 100%  Percentage  Interest of a Class of Class B
Certificates or a holder of a class of securities  representing interests in the
Class  B   Certificates   and/or  other   subordinated   mortgage   pass-through
certificates, such agreement to be substantially in the form of Exhibit M hereto
or  subject  to each  Rating  Agency's  acknowledgment  that the  ratings of the
Certificates in effect  immediately prior to the entering into of such agreement
would not be qualified,  downgraded or withdrawn and the Certificates  would not
be placed on credit review status (except for possible upgrading)  (without,  in
the case of the Class A-12 Certificates,  giving effect to the guaranty provided
by Financial  Security) as a result of such  agreement.  Any such  agreement may
contain  provisions  whereby  such holder may  instruct  the Master  Servicer to
instruct a Servicer to the extent provided in the applicable Servicing Agreement
to commence or delay foreclosure proceedings with respect to delinquent Mortgage
Loans and will  contain  provisions  for the  deposit of cash by the holder that
would  be  available  for  distribution  to  Certificateholders  if  Liquidation
Proceeds are less than they  otherwise  may have been had the Servicer  acted in
accordance with its normal procedures.

            Section 3.09      Termination   and    Substitution   of   Servicing
Agreements.

            Upon  the  occurrence  of any  event  for  which a  Servicer  may be
terminated  pursuant  to its  Servicing  Agreement,  the Master  Servicer  shall
promptly  deliver  to the  Seller  and  the  Trustee  an  Officer's  Certificate
certifying  that an event has  occurred  which may justify  termination  of such
Servicing  Agreement,  describing the  circumstances  surrounding such event and
recommending  what action  should be taken by the Trustee  with  respect to such
Servicer.  If the Master Servicer  recommends  that such Servicing  Agreement be
terminated,  the Master Servicer's  certification  must state that the breach is
material  and not merely  technical  in nature.  Upon  written  direction of the
Master  Servicer,  based upon such  certification,  the Trustee  shall  promptly
terminate such Servicing Agreement.  Notwithstanding the foregoing, in the event
that (i) Norwest  Mortgage fails to make any advance,  as a consequence of which
the Trust Administrator is obligated to make an advance pursuant to Section 3.03
and (ii) the Trust Administrator provides Norwest Mortgage written notice of the
failure to make such advance and such failure shall  continue  unremedied  for a
period of 15 days after receipt of such notice,  the Trust  Administrator  shall
recommend  to the Trustee the  termination  of the Norwest  Servicing  Agreement
without the recommendation of the Master Servicer and upon such  recommendation,
the Trustee shall terminate the Norwest Servicing Agreement. The Master Servicer
shall indemnify the Trustee and the Trust  Administrator  and hold each harmless
from and against any and all claims, liabilities, costs and expenses (including,
without  limitation,  reasonable  attorneys'  fees)  arising out of, or assessed
against the Trustee or the Trust Administrator in connection with termination of
such Servicing  Agreement at the direction of the Master Servicer.  In addition,
the Master  Servicer  shall  indemnify the Trustee and hold it harmless from and
against any and all claims, liabilities,  costs and expenses (including, without
limitation,  reasonable attorney's fees) arising out of, or assessed against the
Trustee in connection with the termination of the Norwest Servicing Agreement as
provided  in the second  preceding  sentence.  If the  Trustee  terminates  such
Servicing Agreement, the Trustee may enter into a substitute Servicing Agreement
with the Master Servicer or, at the Master Servicer's  nomination,  with another
mortgage   loan  service   company   acceptable   to  the  Trustee,   the  Trust
Administrator, the Master Servicer and each Rating Agency under which the Master
Servicer or such substitute servicer, as the case may be, shall assume, satisfy,
perform and carry out all liabilities,  duties, responsibilities and obligations
that are to be, or otherwise were to have been, satisfied, performed and carried
out by such Servicer under such terminated Servicing Agreement.  Until such time
as the Trustee enters into a substitute  servicing agreement with respect to the
Mortgage Loans previously  serviced by such Servicer,  the Master Servicer shall
assume,  satisfy,  perform and carry out all obligations which otherwise were to
have been  satisfied,  performed  and  carried  out by such  Servicer  under its
terminated Servicing  Agreement.  However, in no event shall the Master Servicer
be deemed to have assumed the  obligations of a Servicer to advance  payments of
principal  and  interest on a delinquent  Mortgage  Loan in excess of the Master
Servicer's  independent  Periodic Advance  obligation under Section 3.03 of this
Agreement.  As compensation for the Master Servicer of any servicing obligations
fulfilled  or assumed  by the Master  Servicer,  the  Master  Servicer  shall be
entitled  to any  servicing  compensation  to which a  Servicer  would have been
entitled if the Servicing Agreement with such Servicer had not been terminated.

            Section 3.10      Application of Net Liquidation Proceeds.

            For all purposes  under this  agreement,  Net  Liquidation  Proceeds
received from a Servicer shall be allocated first to accrued and unpaid interest
on the related Mortgage Loan and then to the unpaid principal balance thereof.

            Section 3.11      Act Reports.

            The Master Servicer shall, on behalf of the Seller, make all filings
required  to be made by the  Seller  with  respect  to the Class A  Certificates
(other than the Class A-PO  Certificates) and the Class B-1, Class B-2 and Class
B-3 Certificates pursuant to the Securities Exchange Act of 1934, as amended.


<PAGE>






                                   ARTICLE IV

                    DISTRIBUTIONS IN RESPECT OF CERTIFICATES;
                         PAYMENTS TO CERTIFICATEHOLDERS;
                             STATEMENTS AND REPORTS

            Section 4.01      Distributions.

            (a)   (i) On each Distribution  Date, the Pool  Distribution  Amount
will be applied in the following  amounts,  to the extent the Pool  Distribution
Amount is  sufficient  therefor,  in the manner and in the order of  priority as
follows:

            first,  to the  Classes  of Class A  Certificates  and to  Financial
      Security,  pro rata, based upon their respective  Interest Accrual Amounts
      and the Premium Payment,  as the case may be, in an aggregate amount up to
      the sum of the Class A Interest  Accrual  Amount and the  Premium  Payment
      with  respect  to such  Distribution  Date;  provided  that  prior  to the
      applicable Accretion  Termination Date, an amount equal to the amount that
      would otherwise be  distributable  in respect of interest to each Class of
      Accrual Certificates and the Accrual Component pursuant to this provisions
      will instead be  distributed  in reduction  of the  Principal  Balances of
      certain Classes of Class A Certificates and the Accrual Component, in each
      case in accordance with Section 4.01(b);

            second,  to the  Classes of Class A  Certificates  and to  Financial
      Security,  pro rata,  based upon their  respective Class A Unpaid Interest
      Shortfalls  and  Premium  Unpaid  Shortfall,  as the  case  may be,  in an
      aggregate  amount up to the sum of the Aggregate  Class A Unpaid  Interest
      Shortfall  and  Premium  Unpaid  Shortfall;  provided  that  prior  to the
      applicable Accretion  Termination Date, an amount equal to the amount that
      would otherwise be distributable in respect of unpaid interest  shortfalls
      to each Class of Accrual  Certificates and the Accrual Component  pursuant
      to  this  provision  will  instead  be  distributed  in  reduction  of the
      Principal  Balances  of certain  Classes A  Certificates  and the  Accrual
      Component, in each case in accordance with Section 4.01(b);

            third,  concurrently,  to the Class A  Certificates  (other than the
      Class A-PO Certificates) and the Class A-PO Certificates,  pro rata, based
      on their respective Class A Non-PO Optimal Principal Amount and Class A-PO
      Optimal  Principal  Amount,  (A) to the  Classes  of Class A  Certificates
      (other than the Class A-PO Certificates), in an aggregate amount up to the
      Class A Non-PO Optimal Principal Amount, such distribution to be allocated
      among such Classes in accordance with Section 4.01(b) or Section  4.01(c),
      as applicable,  and (B) to the Class A-PO  Certificates in an amount up to
      the Class A-PO Optimal Principal Amount;

            fourth,  to the Class A-PO Certificates in an amount up to the Class
      A-PO Deferred Amount from amounts otherwise  distributable (without regard
      to this Paragraph fourth) first to the Class B-6 Certificates  pursuant to
      Paragraph  twenty-second,  below,  second to the  Class  B-5  Certificates
      pursuant  to  Paragraph   nineteenth,   below,  third  to  the  Class  B-4
      Certificates  pursuant to Paragraph sixteenth,  below, fourth to the Class
      B-3 Certificates  pursuant to Paragraph  thirteenth,  below,  fifth to the
      Class B-2 Certificates pursuant to Paragraph tenth below, and sixth to the
      Class B-1 Certificates pursuant to Paragraph seventh below;

            fifth, to the Class B-1 Certificates in an amount up to the Interest
      Accrual  Amount  for the  Class  B-1  Certificates  with  respect  to such
      Distribution Date;

            sixth,  to the Class B-1  Certificates  in an amount up to the Class
      B-1 Unpaid Interest Shortfall;

            seventh,  to the Class B-1 Certificates in an amount up to the Class
      B-1  Optimal  Principal  Amount;   provided,   however,  that  the  amount
      distributable  to the Class B-1  Certificates  pursuant to this  Paragraph
      seventh  will be  reduced  by the  amount,  if any,  that  would have been
      distributable  to the Class  B-1  Certificates  hereunder  used to pay the
      Class A-PO Deferred Amount as provided in Paragraph fourth above;

            eighth,  to  the  Class  B-2  Certificates  in an  amount  up to the
      Interest  Accrual  Amount for the Class B-2  Certificates  with respect to
      such Distribution Date;

            ninth,  to the Class B-2  Certificates  in an amount up to the Class
      B-2 Unpaid Interest Shortfall;

            tenth,  to the Class B-2  Certificates  in an amount up to the Class
      B-2  Optimal  Principal  Amount;   provided,   however,  that  the  amount
      distributable  to the Class B-2  Certificates  pursuant to this  Paragraph
      tenth  will be  reduced  by the  amount,  if any,  that  would  have  been
      distributable  to the Class  B-2  Certificates  hereunder  used to pay the
      Class A-PO Deferred Amount as provided in Paragraph fourth above;

            eleventh,  to the  Class  B-3  Certificates  in an  amount up to the
      Interest  Accrual  Amount for the Class B-3  Certificates  with respect to
      such Distribution Date;

            twelfth,  to the Class B-3 Certificates in an amount up to the Class
      B-3 Unpaid Interest Shortfall;

            thirteenth,  to the  Class B-3  Certificates  in an amount up to the
      Class B-3 Optimal Principal  Amount;  provided,  however,  that the amount
      distributable  to the Class B-3  Certificates  pursuant to this  Paragraph
      thirteenth  will be reduced by the  amount,  if any,  that would have been
      distributable  to the Class  B-3  Certificates  hereunder  used to pay the
      Class A-PO Deferred Amount as provided in Paragraph fourth above;

            fourteenth,  to the  Class B-4  Certificates  in an amount up to the
      Interest  Accrual  Amount for the Class B-4  Certificates  with respect to
      such Distribution Date;

            fifteenth,  to the  Class  B-4  Certificates  in an amount up to the
      Class B-4 Unpaid Interest Shortfall;

            sixteenth,  to the  Class  B-4  Certificates  in an amount up to the
      Class B-4 Optimal Principal  Amount;  provided,  however,  that the amount
      distributable  to the Class B-4  Certificates  pursuant to this  Paragraph
      sixteenth  will be reduced  by the  amount,  if any,  that would have been
      distributable  to the Class  B-4  Certificates  hereunder  used to pay the
      Class A-PO Deferred Amount as provided in Paragraph fourth above;

            seventeenth,  to the Class B-5  Certificates  in an amount up to the
      Interest  Accrual  Amount for the Class B-5  Certificates  with respect to
      such Distribution Date;

            eighteenth,  to the  Class B-5  Certificates  in an amount up to the
      Class B-5 Unpaid Interest Shortfall;

            nineteenth,  to the  Class B-5  Certificates  in an amount up to the
      Class B-5 Optimal Principal  Amount;  provided,  however,  that the amount
      distributable  to the Class B-5  Certificates  pursuant to this  Paragraph
      nineteenth  will be reduced by the  amount,  if any,  that would have been
      distributable  to the Class  B-5  Certificates  hereunder  used to pay the
      Class A-PO Deferred Amount as provided in Paragraph fourth above;

            twentieth,  to the  Class  B-6  Certificates  in an amount up to the
      Interest  Accrual  Amount for the Class B-6  Certificates  with respect to
      such Distribution Date;

            twenty-first,  to the Class B-6  Certificates in an amount up to the
      Class B-6 Unpaid Interest Shortfall;

            twenty-second,  to the Class B-6 Certificates in an amount up to the
      Class B-6 Optimal Principal  Amount;  provided,  however,  that the amount
      distributable  to the Class B-6  Certificates  pursuant to this  Paragraph
      twenty-second  will be reduced by the amount, if any, that would have been
      distributable  to the Class  B-6  Certificates  hereunder  used to pay the
      Class A-PO Deferred Amount as provided in Paragraph fourth above; and

            twenty-third,  to the  Holder  of the  Class  A-R  Certificate,  any
      amounts remaining in the Upper-Tier Certificate Account, and to the Holder
      of the Class  A-LR  Certificate,  any  amounts  remaining  in the  Payment
      Account.

            Notwithstanding  the  foregoing,  after  the  Principal  Balance  or
notional  amount of any Class (other than the Class A-8, Class A-R or Class A-LR
Certificates)  has been  reduced  to zero,  or,  in the  case of the  Class  A-8
Certificates,  after the  latter to occur of (i) the  Principal  Balance of such
Class has been  reduced  to zero or (ii) each Class A-8 IO  Notional  Amount has
been reduced to zero, such Class will be entitled to no further distributions of
principal  or  interest  (including,  without  limitation,  any Unpaid  Interest
Shortfalls). In addition, Financial Security will not be entitled to its Premium
Payments and Premium Unpaid  Shortfalls after the Principal Balance of the Class
A-12 Certificates has been reduced to zero.

            Furthermore,  Net Foreclosure  Profits, if any, with respect to such
Distribution  Date minus any portion thereof  payable to a Servicer  pursuant to
Section  3.02(ix)  hereof shall be  distributed  to the Holder of the Class A-LR
Certificate.

            With respect to any  Distribution  Date, the amount of the Principal
Adjustment,  if any,  attributable to any Class of Class B Certificates  will be
allocated to the Classes of Class A Certificates  (other than the Class A-21 and
Class  A-PO  Certificates)  and any Class of Class B  Certificates  with a lower
numerical designation pro rata based on their Principal Balances.

            (ii)  Distributions on the Uncertificated  Lower-Tier Interests.  On
each Distribution Date, each  Uncertificated  Lower-Tier  Interest shall receive
distributions  in  respect  of  principal  in an amount  equal to the  amount of
principal distributed to its respective Corresponding Upper-Tier Class, Classes,
Component or Components as provided  herein.  On each  Distribution  Date,  each
Uncertificated  Lower-Tier  Interest shall receive  distributions  in respect of
interest equal to the Interest  Accrual Amounts and  distributions in respect of
Unpaid Interest Shortfalls,  as the case may be, in respect of its Corresponding
Upper-Tier  Class,  Classes,  Component or Components in each case to the extent
actually  distributed  thereon;  provided  that,  in the case of the Class  A-L5
Interest,  the Class A-L8 Interest and Class A-L10 Interest,  an amount equal to
the Interest Accrual Amounts and payments of Unpaid Interest Shortfalls added to
the Principal  Balances of the Accrual  Certificates  and the Accrual  Component
will be added to the Principal Balance of the Uncertificated Lower-Tier Interest
to which  such Class of  Accrual  Certificates  or the  Accrual  Component  is a
Corresponding Upper-Tier Class, Classes,  Component or Components.  Such amounts
distributed to the Uncertificated  Lower-Tier  Interests in respect of principal
and  interest  with  respect to any  Distribution  Date are  referred  to herein
collectively as the "Lower-Tier Distribution Amount."

            As of  any  date,  the  principal  balance  of  each  Uncertificated
Lower-Tier   Interest   equals  the   Principal   Balances  of  the   respective
Corresponding  Upper-Tier Class, Classes,  Component or Components.  The initial
principal balance of each Uncertificated Lower-Tier Interest equals the Original
Principal Balances of the respective  Corresponding  Upper-Tier Class,  Classes,
Component or Components.

            The pass-through rate with respect to the Class A-L1 Interest, Class
A-L2 Interest,  Class A-L3 Interest,  Class A-L4 Interest,  Class A-L5 Interest,
Class A-L6  Interest,  Class A-L8  Interest,  Class A-LUR  Interest,  Class B-L1
Interest,  Class BL-2 Interest,  Class BL-3 Interest, Class BL-4 Interest, Class
BL-5  Interest  and  Class  BL-6  Interest  shall  be  6.500%  per  annum.   The
pass-through  rate  with  respect  to the  Class  A-L10  Interest,  Class  A-L14
Interest,  and Class A-L16 Interest shall be 6.750% per annum.  The pass-through
rate with  respect  to the Class  A-L12  Interest  shall be 6.690% per annum The
Class A-L20 and Class A-LPO Interests are  principal-only  interests and are not
entitled to distributions of interest.  Any  Non-Supported  Interest  Shortfalls
will be  allocated  to  each  Uncertificated  Lower-Tier  Interest  in the  same
relative proportions as interest is allocated to such Uncertificated  Lower-Tier
Interest.

            (b)   The Class A-21 Certificates are interest-only Certificates and
are not entitled to distributions in respect of principal.

            On each  Distribution  Date occurring prior to the Cross-Over  Date,
the Class A Non-PO  Principal  Distribution  Amount will be allocated  among and
distributed  in reduction of the Principal  Balances of the Class A Certificates
(other  than the Class  A-PO  Certificates)  in  accordance  with the  following
priorities:

            I.  On each  Distribution  Date  occurring  prior  to the  Accretion
      Termination  Date  for  the  Class  A-8  Accrual  Component,  the  Accrual
      Distribution Amount for the Class A-8 Accrual Component will be
      allocated sequentially as follows:

            first,  to  the  Class  A-4  Certificates,  up to the  Schedule  III
      Reduction Amount for such Distribution Date;

            second, concurrently, 35% to the Class A-8 Accrual Component and 65%
      to  the  Class  A-4  Certificates,  without  regard  to the  Schedule  III
      Reduction Amount for such  Distribution  Date, until the Principal Balance
      of either such Component or Class has been reduced to zero; and

            third,  to the  Class A-8  Accrual  Component,  until the  Principal
      Balance thereof has been reduced to zero;

            II.  On each  Distribution  Date  occurring  prior to the  Accretion
      Termination Date for the Class A-5 Certificates,  the Accrual Distribution
      Amount  for the  Class  A-5  Certificates  will be  allocated,  after  the
      allocation of the Accrual Distribution Amount for the Class
      A-8 Accrual Component, sequentially as follows:

            first, sequentially, up to the Schedule II Reduction Amount for such
      Distribution Date, as follows:

                  (i)   to the Class A-4  Certificates,  up to the  Schedule III
      Reduction Amount for such Distribution Date;

                  (ii)  concurrently, 35% to the Class A-8 Accrual Component and
      65% to the Class A-4  Certificates,  without  regard to the  Schedule  III
      Reduction Amount for such  Distribution  Date, until the Principal Balance
      of either such Component or Class has been reduced to zero;

                  (iii) to the Class A-8 Accrual Component,  until the Principal
      Balance thereof has been reduced to zero; and

                  (iv)  to the Class  A-4  Certificates,  without  regard to the
      Schedule  III  Reduction  Amount  for such  Distribution  Date,  until the
      Principal Balance thereof has been reduced to zero; and

            second, to the Class A-5  Certificates,  until the Principal Balance
      thereof has been reduced to zero;

            III. On each  Distribution  Date  occurring  prior to the  Accretion
      Termination Date for the Class A-11 Certificates, the Accrual Distribution
      Amount for the Class A-11 Certificates  will be allocated  sequentially to
      the Class  A-10 and Class  A-11  Certificates,  in that  order,  until the
      Principal Balance of each Class has been reduced to zero;

            IV.  On each  Distribution  Date  occurring  prior to the  Accretion
      Termination Date for the Class A-19 Certificates, the Accrual Distribution
      Amount for the Class A-19 Certificates  will be allocated  sequentially to
      the Class  A-18 and Class  A-19  Certificates,  in that  order,  until the
      Principal Balance of each such Class has been reduced to zero;

            V.  The  Class  A  Non-PO   Principal   Amount  will  be   allocated
      concurrently as follows:

            A.    the sum of (i) the Group I-1  Percentage of the Group I Amount
      and (ii) the Group II Amount, sequentially, as follows:

            first, to the Class A-9  Certificates,  up to the Class A-9 Priority
      Amount for such Distribution Date;

            second, concurrently,  to the Class A-R and Class A-LR Certificates,
      pro rata, until the Principal  Balance of each such Class has been reduced
      to zero;

            third,  sequentially,  to the  Class  A-1,  Class  A-2 and Class A-3
      Certificates, in that order, up to the Schedule I PAC Principal Amount for
      such Distribution Date, until the Principal Balance of each such Class has
      been reduced to zero;

            fourth, sequentially, up to the Schedule I Reduction Amount for such
      Distribution Date, as follows:

                  (i)  sequentially,  up to the Schedule II Reduction Amount for
            such Distribution Date, as follows:

                        (a)    to the Class A-4 Certificates, up to the Schedule
                  III Reduction Amount for such Distribution Date;

                        (b)    concurrently,   35%  to  the  Class  A-8  Accrual
                  Component  and  65% to the  Class  A-4  Certificates,  without
                  regard  to  the  Schedule  III   Reduction   Amount  for  such
                  Distribution  Date, until the Principal Balance of either such
                  Component or Class has been reduced to zero;

                        (c)    to the Class  A-8  Accrual  Component,  until the
                  Principal Balance thereof has been reduced to zero; and

                        (d)    to the Class A-4 Certificates,  without regard to
                  the Schedule III Reduction Amount for such Distribution  Date,
                  until the Principal Balance thereof has been reduced to zero;

                  (ii)  to the  Class  A-5  Certificates,  until  the  Principal
            Balance thereof has been reduced to zero; and

                  (iii)   sequentially,   without  regard  to  the  Schedule  II
            Reduction Amount for such Distribution Date, as follows:

                        (a)    to the Class A-4 Certificates, up to the Schedule
                  III Reduction Amount for such Distribution Date;

                        (b)    concurrently,   35%  to  the  Class  A-8  Accrual
                  Component and 65% to the Class A-4 Certificate, without regard
                  to the Schedule  III  Reduction  Amount for such  Distribution
                  Date, until the Principal  Balance of either such Component or
                  Class has been reduced to zero;

                        (c)    to the Class  A-8  Accrual  Component,  until the
                  Principal Balance thereof has been reduced to zero; and

                        (d)    to the Class A-4 Certificates,  without regard to
                  the Schedule III Reduction Amount for such Distribution  Date,
                  until the Principal Balance thereof has been reduced to zero;

            fifth,  concurrently,  to the Class A-6 and Class A-7  Certificates,
      pro rata, until the Principal  Balance of each such Class has been reduced
      to zero;

            sixth,  sequentially,  without  regard to the  Schedule I  Reduction
      Amount for such Distribution Date, as follows:

                  (i)  sequentially,  up to the Schedule II Reduction Amount for
            such Distribution Date, as follows:

                        (a)    to the Class A-4 Certificates, up to the Schedule
                  III Reduction Amount for such Distribution Date;

                        (b)    concurrently,   35%  to  the  Class  A-8  Accrual
                  Component  and  65% to the  Class  A-4  Certificates,  without
                  regard  to  the  Schedule  III   Reduction   Amount  for  such
                  Distribution  Date, until the Principal Balance of either such
                  Component or Class has been reduced to zero;

                        (c)    to the Class  A-8  Accrual  Component,  until the
                  Principal Balance thereof has been reduced to zero; and

                        (d)    to the Class A-4 Certificates,  without regard to
                  the Schedule III Reduction Amount for such Distribution  Date,
                  until the Principal Balance thereof has been reduced to zero;

                  (ii)  to the  Class  A-5  Certificates,  until  the  Principal
            Balance thereof has been reduced to zero; and

                  (iii)   sequentially,   without  regard  to  the  Schedule  II
            Reduction Amount for such Distribution Date, as follows:

                        (a)    to the Class A-4 Certificates, up to the Schedule
                  III Reduction Amount for such Distribution Date;

                        (b)    concurrently,   35%  to  the  Class  A-8  Accrual
                  Component  and  65% to the  Class  A-4  Certificates,  without
                  regard  to  the  Schedule  III   Reduction   Amount  for  such
                  Distribution  Date, until the Principal Balance of either such
                  Component or Class has been reduced to zero;

                        (c)    to the Class  A-8  Accrual  Component,  until the
                  Principal Balance thereof has been reduced to zero; and

                        (d)    to the Class A-4 Certificates,  without regard to
                  the Schedule III Reduction Amount for such Distribution  Date,
                  until the Principal Balance thereof has been reduced to zero;

            seventh,  sequentially,  to the Class  A-1,  Class A-2 and Class A-3
      Certificates,  in  that  order,  without  regard  to  the  Schedule  I PAC
      Principal Amount for such  Distribution  Date, until the Principal Balance
      of each such Class has been reduced to zero;

            eighth, to the Class A-9  Certificates,  without regard to the Class
      A-9  Priority  Amount  for such  Distribution  Date,  until the  Principal
      Balance thereof has been reduced to zero; and

            ninth,  to  the  Group 2   Certificates  in  accordance  with  the
      priorities set forth in clause B below; and

            B.    the sum of (i) the Group I-2  Percentage of the Group I Amount
      and (ii) the Group III Amount, sequentially, as follows:

            first, concurrently, to the Group A Certificates and the Class A-20B
      Component,  pro rata,  up to the Group  A/A-20B  Priority  Amount for such
      Distribution Date, as follows:

                  (i)   to the Group A Certificates, sequentially, as follows:

                        (a)  sequentially,  to the  Class  A-16 and  Class  A-17
                  Certificates,  in  that  order,  up to  the  Schedule  II  PAC
                  Principal  Amount  for  such  Distribution   Date,  until  the
                  Principal Balance of each such Class has been reduced to zero;

                        (b)  sequentially,  to the  Class  A-18 and  Class  A-19
                  Certificates,  in that order,  until the Principal  Balance of
                  each such Class has been reduced to zero; and

                        (c)  sequentially,  to the  Class  A-16 and  Class  A-17
                  Certificates, in that order, without regard to the Schedule II
                  PAC Principal  Amount for such  Distribution  Date,  until the
                  Principal  Balance of each such Class has been  reduced  zero;
                  and

                  (ii) to the Class A-20B Component, until the Principal Balance
            thereof has been reduced to zero;

            second,  to  the  Class  A-22  Certificates,  up to the  Class  A-22
      Priority Amount for such Distribution Date;

            third, concurrently, to the Group B Certificates and the Class A-20A
      Component, pro rata, as follows:

                  (i)  to the Group B Certificates, sequentially, as follows:

                        (a)  sequentially,  up the Schedule IV Reduction  Amount
                  for such Distribution Date, as follows:

                              (1) on each  Distribution  Date on and  after  the
                        Distribution  Date in July  2002,  concurrently,  to the
                        Class A-12 and Class A-13 Certificates,  pro rata, based
                        on their respective Original Principal  Balances,  up to
                        $25,179.00  for  such   Distribution   Date,  until  the
                        Principal Balance of each such Class has been reduced to
                        zero;

                              (2) sequentially, to the Class A-10 and Class A-11
                        Certificates, in that order, until the Principal Balance
                        of each such Class has been reduced to zero;

                              (3) concurrently, to the Class A-12 and Class A-13
                        Certificates,   pro  rata,  based  on  their  respective
                        Original Principal Balances, until the Principal Balance
                        of each such Class has been reduced to zero;

                        (b)  concurrently,  to the  Class  A-14 and  Class  A-15
                  Certificates,  pro rata,  until the Principal  Balance of each
                  such Class has been reduced to zero;

                        (c)  sequentially,  without  regard to the  Schedule  IV
                  Reduction Amount for such Distribution Date, as follows:

                              (1) on each  Distribution  Date on and  after  the
                        Distribution  Date in July  2002,  concurrently,  to the
                        Class A-12 and Class A-13 Certificates,  pro rata, based
                        on their respective Original Principal  Balances,  up to
                        $25,179.00  for such  Distribution  Date  (including any
                        distributions  made  pursuant to this  priority  and all
                        prior  priorities  to such Classes on such  Distribution
                        Date),  until the  Principal  Balance of each such Class
                        has been reduced to zero;

                              (2) sequentially, to the Class A-10 and Class A-11
                        Certificates, in that order, until the Principal Balance
                        of each such Class has been reduced to zero; and

                              (3) concurrently, to the Class A-12 and Class A-13
                        Certificates,   pro  rata,  based  on  their  respective
                        Original Principal Balances, until the Principal Balance
                        of each such Class has been reduced to zero; and

                   (ii)  to the  Class  A-20A  Component,  until  the  Principal
             Balance thereof has been reduced to zero;

            fourth,  concurrently,  to the  Group A  Certificates  and the Class
      A-20B  Component,  pro rata,  without regard to the Group A/A-20B Priority
      Amount for such Distribution Date, as follows:

                  (i) to the Group A Certificates, sequentially, as follows:

                        (a)  sequentially,  to the  Class  A-16 and  Class  A-17
                  Certificates,  in  that  order,  up to  the  Schedule  II  PAC
                  Principal  Amount  for  such  Distribution   Date,  until  the
                  Principal Balance of each such Class has been reduced to zero;

                        (b)  sequentially,  to the  Class  A-18 and  Class  A-19
                  Certificates,  in that order,  until the Principal  Balance of
                  each such Class has been reduced to zero; and

                        (c)  sequentially,  to the  Class  A-16 and  Class  A-17
                  Certificates, in that order, without regard to the Schedule II
                  PAC Principal  Amount for such  Distribution  Date,  until the
                  Principal Balance of each such Class has been reduced to zero;
                  and

                  (ii) to the Class A-20B Component, until the Principal Balance
            thereof has been reduced to zero;

            fifth, to the Class A-22  Certificates,  without regard to the Class
      A-22  Priority  Amount for such  Distribution  Date,  until the  Principal
      Balance thereof has been reduced to zero; and

            sixth, to the Group 1 Certificates in accordance with the priorities
      set forth in clause A above.

            The  following  tables  set  forth  for each  Distribution  Date the
planned Principal Balances and the scheduled Principal Balances,  expressed as a
percentage  of the initial  Principal  Balance or  aggregate  initial  Principal
Balance of the applicable Class, Classes or Component.


<PAGE>

<TABLE>

                                                     PLANNED PRINCIPAL BALANCES

                                                           SCHEDULE I PAC

<CAPTION>


                          PERCENTAGE OF                                PERCENTAGE OF                                 PERCENTAGE OF
                        AGGREGATE INITIAL                            AGGREGATE INITIAL                             AGGREGATE INITIAL
 DISTRIBUTION DATE      PRINCIPAL BALANCE      DISTRIBUTION DATE     PRINCIPAL BALANCE     DISTRIBUTION DATE       PRINCIPAL BALANCE
 -----------------      -----------------      -----------------     -----------------     -----------------       -----------------
<S>                     <C>                    <C>                   <C>                   <C>                     <C>
July 1999...........       99.67376527%       May 2002............      65.66088210%       March 2005..........       23.83137277%
August 1999.........       99.30398462        June 2002...........      64.31959458        April 2005..........       22.71914703
September 1999......       98.89091460        July 2002...........      62.98514408        May 2005............       21.61261426
October 1999........       98.43467774        August 2002.........      61.65749599        June 2005...........       20.51174535
November 1999.......       97.93541896        September 2002......      60.33661589        July 2005...........       19.42151680
December 1999.......       97.39330558        October 2002........      59.02246954        August 2005.........       18.33686275
January 2000........       96.80852718        November 2002.......      57.71502289        September 2005......       17.26293963
February 2000.......       96.18129558        December 2002.......      56.41424206        October 2005........       16.22360021
March 2000..........       95.51184473        January 2003........      55.12009334        November 2005.......       15.21777920
April 2000..........       94.80043056        February 2003.......      53.83254323        December 2005.......       14.24444347
May 2000............       94.04733087        March 2003..........      52.55155836        January 2006........       13.30259108
June 2000...........       93.25284517        April 2003..........      51.27710558        February 2006.......       12.39125034
July 2000...........       92.41729449        May 2003............      50.00915188        March 2006..........       11.50947895
August 2000.........       91.54102119        June 2003...........      48.74766444        April 2006..........       10.65636307
September 2000......       90.62438876        July 2003...........      47.49261063        May 2006............        9.83101647
October 2000........       89.66778155        August 2003.........      46.24395796        June 2006...........        9.03257975
November 2000.......       88.67160457        September 2003......      45.00167413        July 2006...........        8.30480786
December 2000.......       87.63628316        October 2003........      43.76572700        August 2006.........        7.60086865
January 2001........       86.56226276        November 2003.......      42.53608462        September 2006......        6.92001202
February 2001.......       85.45000856        December 2003.......      41.31271519        October 2006........        6.26151091
March 2001..........       84.30000522        January 2004........      40.09558708        November 2006.......        5.62466059
April 2001..........       83.11275647        February 2004.......      38.88466883        December 2006.......        5.00877803
May 2001............       81.88911073        March 2004..........      37.67992915        January 2007........        4.41320119
June 2001...........       80.62960321        April 2004..........      36.48133691        February 2007.......        3.83728841
July 2001...........       79.33478698        May 2004............      35.28886116        March 2007..........        3.28041779
August 2001.........       78.00523258        June 2004...........      34.10247108        April 2007..........        2.74198660
September 2001......       76.64152758        July 2004...........      32.93767226        May 2007............        2.22141067
October 2001........       75.24427618        August 2004.........      31.77883554        June 2007...........        1.71812387
November 2001.......       73.85414527        September 2004......      30.62593039        July 2007...........        1.26696121
December 2001.......       72.47109875        October 2004........      29.47892644        August 2007.........        0.83044451
January 2002........       71.09510072        November 2004.......      28.33779349        September 2007......        0.40810927
February 2002.......       69.72611548        December 2004.......      27.20250146        October 2007
March 2002..........       68.36410748        January 2005........      26.07302047          and thereafter....        0.00000000
April 2002..........       67.00904141        February 2005.......      24.94932077

</TABLE>
<TABLE>


                                                     PLANNED PRINCIPAL BALANCES

                                                           SCHEDULE II PAC
<CAPTION>

                          PERCENTAGE OF                                PERCENTAGE OF                                 PERCENTAGE OF
                        AGGREGATE INITIAL                            AGGREGATE INITIAL                             AGGREGATE INITIAL
 DISTRIBUTION DATE      PRINCIPAL BALANCE      DISTRIBUTION DATE     PRINCIPAL BALANCE     DISTRIBUTION DATE       PRINCIPAL BALANCE
 -----------------      -----------------      -----------------     -----------------     -----------------       -----------------
<S>                     <C>                    <C>                   <C>                   <C>                     <C>
July 1999...........       99.84325982%       November 2004.......      86.20875238%       March 2010..........       35.20694375%
August 1999.........       99.68558250        December 2004.......      85.70357519        April 2010..........       34.28265501
September 1999......       99.52696269        January 2005........      85.19816641        May 2010............       33.36290737
October 1999........       99.36739493        February 2005.......      84.69252192        June 2010...........       32.44767729
November 1999.......       99.20687368        March 2005..........      84.18663759        July 2010...........       31.53694137
December 1999.......       99.04539334        April 2005..........      83.68050928        August 2010.........       30.63067633
January 2000........       98.88294826        May 2005............      83.17413283        September 2010......       29.72885898
February 2000.......       98.71953274        June 2005...........      82.66750407        October 2010........       28.83146627
March 2000..........       98.55514102        July 2005...........      82.07039732        November 2010.......       27.93847529
April 2000..........       98.38976733        August 2005.........      81.47359871        December 2010.......       27.04986320
May 2000............       98.22340583        September 2005......      80.87710400        January 2011........       26.16560732
June 2000...........       98.05605063        October 2005........      80.28090897        February 2011.......       25.28568506
July 2000...........       97.88769585        November 2005.......      79.68500937        March 2011..........       24.41997703
August 2000.........       97.71833551        December 2005.......      79.08940095        April 2011..........       23.57513895
September 2000......       97.54796364        January 2006........      78.49407946        May 2011............       22.75067721
October 2000........       97.37657420        February 2006.......      77.89904064        June 2011...........       21.94610973
November 2000.......       97.20416114        March 2006..........      77.30428024        July 2011...........       21.16096567
December 2000.......       97.03071835        April 2006..........      76.70979397        August 2011.........       20.39478521
January 2001........       96.85623969        May 2006............      76.11557757        September 2011......       19.64711927
February 2001.......       96.68071898        June 2006...........      75.52162675        October 2011........       18.91752926
March 2001..........       96.50415200        July 2006...........      74.75485864        November 2011.......       18.20558683
April 2001..........       96.32653382        August 2006.........      73.98974861        December 2011.......       17.51087367
May 2001............       96.14786438        September 2006......      73.22628951        January 2012........       16.83298123
June 2001...........       95.96813643        October 2006........      72.46447421        February 2012.......       16.17151052
July 2001...........       95.78734273        November 2006.......      71.70429558        March 2012..........       15.52607190
August 2001.........       95.60547603        December 2006.......      70.94574652        April 2012..........       14.89628482
September 2001......       95.42252911        January 2007........      70.18881994        May 2012............       14.28177766
October 2001........       95.23849473        February 2007.......      69.43350877        June 2012...........       13.68218750
November 2001.......       95.05336081        March 2007..........      68.67980596        July 2012...........       13.09715990
December 2001.......       94.86712078        April 2007..........      67.92770446        August 2012.........       12.52634874
January 2002........       94.67976801        May 2007............      67.17719724        September 2012......       11.96941599
February 2002.......       94.49129588        June 2007...........      66.42827731        October 2012........       11.42603156
March 2002..........       94.30169767        July 2007...........      65.51722320        November 2012.......       10.89587309
April 2002..........       94.11096665        August 2007.........      64.60944932        December 2012.......       10.37862578
May 2002............       93.91909607        September 2007......      63.70494132        January 20l3........        9.87398219
June 2002...........       93.72607910        October 2007........      62.80368487        February 2013.......        9.38164213
July 2002...........       93.53190888        November 2007.......      61.90566575        March 2013..........        8.90131243
August 2002.........       93.33657854        December 2007.......      61.01086977        April 2013..........        8.43270679
September 2002......       93.14008112        January 2008........      60.11928278        May 2013............        7.97554565
October 2002........       92.94240966        February 2008.......      59.23089072        June 2013...........        7.52955600
November 2002.......       92.74355713        March 2008..........      58.34567956        July 2013...........        7.09447126
December 2002.......       92.54351647        April 2008..........      57.46363535        August 2013.........        6.67003110
January 2003........       92.34228058        May 2008............      56.58474417        September 2013......        6.25598150
February 2003.......       92.13984232        June 2008...........      55.70899218        October 2013........        5.85207362
March 2003..........       91.93619450        July 2008...........      54.68368393        November 2013.......        5.45806566
April 2003..........       91.73132988        August 2008.........      53.66343998        December 2013.......        5.07372073
May 2003............       91.52524119        September 2008......      52.64823411        January 2014........        4.69880768
June 2003...........       91.31792112        October 2008........      51.63804024        February 2014.......        4.33310082
July 2003...........       91.10936229        November 2008.......      50.63283242        March 2014..........        3.97637977
August 2003.........       90.89955731        December 2008.......      49.63258483        April 2014..........        3.62842933
September 2003......       90.68849872        January 2009........      48.63727179        May 2014............        3.28903938
October 2003........       90.47617904        February 2009.......      47.64686775        June 2014...........        2.95800473
November 2003.......       90.26259071        March 2009..........      46.66134728        July 2014...........        2.63512503
December 2003.......       90.04772616        April 2009..........      45.68068510        August 2014.........        2.32020467
January 2004........       89.83157775        May 2009............      44.70485604        September 2014......        2.01305263
February 2004.......       89.61413781        June 2009...........      43.73383508        October 2014........        1.71348240
March 2004..........       89.39539862        July 2009...........      42.76759731        November 2014.......        1.42131188
April 2004..........       89.17535240        August 2009.........      41.80611796        December 2014.......        1.13636325
May 2004............       88.95399135        September 2009......      40.84937239        January 2015........        0.85846290
June 2004...........       88.73130760        October 2009........      39.89733606        February 2015.......        0.58744130
July 2004...........       88.22722709        November 2009.......      38.94998459        March 2015..........        0.32313296
August 2004.........       87.72293536        December 2009.......      38.00729370        April 2015..........        0.06537625
September 2004......       87.21842838        January 2010........      37.06923926        May 2015
October 2004........       86.71370208        February 2010.......      36.13579725          and thereafter....        0.00000000

</TABLE>
<TABLE>


                                                     PLANNED PRINCIPAL BALANCES

                                                        SCHEDULE I REDUCTION
<CAPTION>

                          PERCENTAGE OF                                PERCENTAGE OF                                 PERCENTAGE OF
                        AGGREGATE INITIAL                            AGGREGATE INITIAL                             AGGREGATE INITIAL
 DISTRIBUTION DATE      PRINCIPAL BALANCE      DISTRIBUTION DATE     PRINCIPAL BALANCE     DISTRIBUTION DATE       PRINCIPAL BALANCE
 -----------------      -----------------      -----------------     -----------------     -----------------       -----------------
<S>                     <C>                    <C>                   <C>                   <C>                     <C>
July 1999...........       99.80326434%       June 2003...........      49.23843694%       May 2007............       25.23315074%
August 1999.........       99.54198350        July 2003...........      48.34958068        June 2007...........       24.79277992
September 1999......       99.21631908        August 2003.........      47.48606346        July 2007...........       24.34117114
October 1999........       98.82655613        September 2003......      46.64744286        August 2007.........       23.89047062
November 1999.......       98.37310361        October 2003........      45.83328343        September 2007......       23.44086695
December 1999.......       97.85649452        November 2003.......      45.04315660        October 2007........       22.99211270
January 2000........       97.27738574        December 2003.......      44.27664056        November 2007.......       22.20405290
February 2000.......       96.63655748        January 2004........      43.53332017        December 2007.......       21.42871210
March 2000..........       95.93491255        February 2004.......      42.81278683        January 2008........       20.66589078
April 2000..........       95.17347513        March 2004..........      42.11463843        February 2008.......       19.91539251
May 2000............       94.35338938        April 2004..........      41.43847918        March 2008..........       19.17702390
June 2000...........       93.47591766        May 2004............      40.78391959        April 2008..........       18.45059450
July 2000...........       92.54243840        June 2004...........      40.15057633        May 2008............       17.73591684
August 2000.........       91.55444370        July 2004...........      39.56354884        June 2008...........       17.03280633
September 2000......       90.51353663        August 2004.........      38.99677286        July 2008...........       16.35763259
October 2000........       89.42142817        September 2004......      38.44988374        August 2008.........       15.69316309
November 2000.......       88.27993389        October 2004........      37.92252267        September 2008......       15.03923246
December 2000.......       87.09097034        November 2004.......      37.41433649        October 2008........       14.39567784
January 2001........       85.85655110        December 2004.......      36.92497769        November 2008.......       13.76233885
February 2001.......       84.57878264        January 2005........      36.45410429        December 2008.......       13.13905755
March 2001..........       83.25985981        February 2005.......      36.00137976        January 2009........       12.52567841
April 2001..........       81.90206121        March 2005..........      35.56647294        February 2009.......       11.92204828
May 2001............       80.50821676        April 2005..........      35.14905792        March 2009..........       11.32801632
June 2001...........       79.08072961        May 2005............      34.74881404        April 2009..........       10.74343401
July 2001...........       77.62207089        June 2005...........      34.36542574        May 2009............       10.16815508
August 2001.........       76.13477422        July 2005...........      34.00635630        June 2009...........        9.60203550
September 2001......       74.62142996        August 2005.........      33.66339478        July 2009...........        9.04493342
October 2001........       73.08467933        September 2005......      33.33176662        August 2009.........        8.49670919
November 2001.......       71.58437676        October 2005........      32.99056595        September 2009......        7.95722524
December 2001.......       70.11990567        November 2005.......      32.64039777        October 2009........        7.42634613
January 2002........       68.69065906        December 2005.......      32.28184414        November 2009.......        6.90393847
February 2002.......       67.29603945        January 2006........      31.91546492        December 2009.......        6.38987093
March 2002..........       65.93545869        February 2006.......      31.54179847        January 2010........        5.88401415
April 2002..........       64.60833781        March 2006..........      31.16136242        February 2010.......        5.38624077
May 2002............       63.31410689        April 2006..........      30.77465430        March 2010..........        4.89642536
June 2002...........       62.05220496        May 2006............      30.38215224        April 2010..........        4.41444442
July 2002...........       60.82207980        June 2006...........      29.98431560        May 2010............        3.94017631
August 2002.........       59.62318785        July 2006...........      29.56523700        June 2010...........        3.47350127
September 2002......       58.45499407        August 2006.........      29.14253274        July 2010...........        3.01430135
October 2002........       57.31697178        September 2006......      28.71658520        August 2010.........        2.56246044
November 2002.......       56.20860261        October 2006........      28.28776091        September 2010......        2.11786415
December 2002.......       55.12937627        November 2006.......      27.85641114        October 2010........        1.68039987
January 2003........       54.07879052        December 2006.......      27.42287238        November 2010.......        1.24995671
February 2003.......       53.05635097        January 2007........      26.98746689        December 2010.......        0.82642547
March 2003..........       52.06157104        February 2007.......      26.55050315        January 2011........        0.40969862
April 2003..........       51.09397177        March 2007..........      26.11227637        February 2011
May 2003............       50.15308173        April 2007..........      25.67306890          and thereafter....        0.00000000

</TABLE>
<TABLE>


                                                     PLANNED PRINCIPAL BALANCES

                                                        SCHEDULE II REDUCTION
<CAPTION>

                          PERCENTAGE OF                                PERCENTAGE OF                                 PERCENTAGE OF
                        AGGREGATE INITIAL                            AGGREGATE INITIAL                             AGGREGATE INITIAL
 DISTRIBUTION DATE      PRINCIPAL BALANCE      DISTRIBUTION DATE     PRINCIPAL BALANCE     DISTRIBUTION DATE       PRINCIPAL BALANCE
 -----------------      -----------------      -----------------     -----------------     -----------------       -----------------
<S>                     <C>                    <C>                    <C>                  <C>                     <C>
July 1999...........       99.93064336%       May 2005............      73.34930410%       March 2011..........       30.91684865%
August 1999.........       99.83857377        June 2005...........      73.11513956        April 2011..........       30.29574166
September 1999......       99.72384885        July 2005...........      72.88949550        May 2011............       29.68016064
October 1999........       99.58655650        August 2005.........      72.66955553        June 2011...........       29.07005849
November 1999.......       99.42681499        September 2005......      72.45063744        July 2011...........       28.46538855
December 1999.......       99.24477290        October 2005........      72.21141208        August 2011.........       27.86610453
January 2000........       99.04060904        November 2005.......      71.95273872        September 2011......       27.27216052
February 2000.......       98.81453238        December 2005.......      71.67544876        October 2011........       26.68351101
March 2000..........       98.56678181        January 2006........      71.38034655        November 2011.......       26.10011088
April 2000..........       98.29762598        February 2006.......      71.06821025        December 2011.......       25.52191538
May 2000............       98.00736294        March 2006..........      70.73979260        January 2012........       24.94888013
June 2000...........       97.69631991        April 2006..........      70.39582172        February 2012.......       24.38096114
July 2000...........       97.36485282        May 2006............      70.03700184        March 2012..........       23.81811477
August 2000.........       97.01334590        June 2006...........      69.66401407        April 2012..........       23.26029777
September 2000......       96.64221123        July 2006...........      69.25136491        May 2012............       22.70746724
October 2000........       96.25188816        August 2006.........      68.82696831        June 2012...........       22.15958065
November 2000.......       95.84284278        September 2006......      68.39141101        July 2012...........       21.61659581
December 2000.......       95.41556726        October 2006........      67.94525992        August 2012.........       21.07847091
January 2001........       94.97057917        November 2006.......      67.48906271        September 2012......       20.54516447
February 2001.......       94.50842078        December 2006.......      67.02334847        October 2012........       20.01663538
March 2001..........       94.02965828        January 2007........      66.54862821        November 2012.......       19.49284285
April 2001..........       93.53488099        February 2007.......      66.06539550        December 2012.......       18.97374647
May 2001............       93.02487042        March 2007..........      65.57412694        January 2013........       18.45930613
June 2001...........       92.50025259        April 2007..........      65.07528274        February 2013.......       17.94948209
July 2001...........       91.96167387        May 2007............      64.56930721        March 2013..........       17.44423492
August 2001.........       91.40979998        June 2007...........      64.05662925        April 2013..........       16.94352555
September 2001......       90.84531503        July 2007...........      63.51867814        May 2013............       16.44731520
October 2001........       90.26892048        August 2007.........      62.97604258        June 2013...........       15.95556546
November 2001.......       89.70202766        September 2007......      62.42906451        July 2013...........       15.46823822
December 2001.......       89.14453565        October 2007........      61.87763325        August 2013.........       14.98529568
January 2002........       88.59634451        November 2007.......      60.97095505        September 2013......       14.50670039
February 2002.......       88.05735523        December 2007.......      60.07235050        October 2013........       14.03241519
March 2002..........       87.52746973        January 2008........      59.18175037        November 2013.......       13.56240324
April 2002..........       87.00659086        February 2008.......      58.29908597        December 2013.......       13.09662801
May 2002............       86.49462240        March 2008..........      57.42428921        January 2014........       12.63505328
June 2002...........       85.99146904        April 2008..........      56.55729259        February 2014.......       12.17764315
July 2002...........       85.49703636        May 2008............      55.69802916        March 2014..........       11.72436198
August 2002.........       85.01123084        June 2008...........      54.84643255        April 2014..........       11.27517448
September 2002......       84.53395986        July 2008...........      54.01375663        May 2014............       10.83004562
October 2002........       84.06513166        August 2008.........      53.18840601        June 2014...........       10.38894068
November 2002.......       83.60465536        September 2008......      52.37031847        July 2014...........        9.95182525
December 2002.......       83.15244094        October 2008........      51.55943232        August 2014.........        9.51866517
January 2003........       82.70839925        November 2008.......      50.75568639        September 2014......        9.08942660
February 2003.......       82.27244195        December 2008.......      49.95902001        October 2014........        8.66407598
March 2003..........       81.84448159        January 2009........      49.16937305        November 2014.......        8.24258002
April 2003..........       81.42443151        February 2009.......      48.38668587        December 2014.......        7.82490572
May 2003............       81.01220591        March 2009..........      47.61089931        January 2015........        7.41102036
June 2003...........       80.60771978        April 2009..........      46.84195473        February 2015.......        7.00089150
July 2003...........       80.21088893        May 2009............      46.07979400        March 2015..........        6.59448695
August 2003.........       79.82162998        June 2009...........      45.32435944        April 2015..........        6.19177482
September 2003......       79.43986033        July 2009...........      44.57559388        May 2015............        5.79272347
October 2003........       79.06549818        August 2009.........      43.83344062        June 2015...........        5.39730153
November 2003.......       78.69846253        September 2009......      43.09784346        July 2015...........        5.00547791
December 2003.......       78.33867311        October 2009........      42.36874664        August 2015.........        4.61722176
January 2004........       77.98605045        November 2009.......      41.64609488        September 2015......        4.23250250
February 2004.......       77.64051583        December 2009.......      40.92983338        October 2015........        3.85128981
March 2004..........       77.30199130        January 2010........      40.21990779        November 2015.......        3.47355363
April 2004..........       76.97039963        February 2010.......      39.51626421        December 2015.......        3.09926413
May 2004............       76.64566434        March 2010..........      38.81884921        January 2016........        2.72839177
June 2004...........       76.32770971        April 2010..........      38.12760979        February 2016.......        2.36090722
July 2004...........       76.02515483        May 2010............      37.44249341        March 2016..........        1.99678142
August 2004.........       75.72917451        June 2010...........      36.76344798        April 2016..........        1.63598555
September 2004......       75.43969521        July 2010...........      36.09042182        May 2016............        1.27849103
October 2004........       75.15664412        August 2010.........      35.42336370        June 2016...........        0.92426954
November 2004.......       74.87994910        September 2010......      34.76222284        July 2016...........        0.57329296
December 2004.......       74.60953873        October 2010........      34.10694885        August 2016.........        0.22553345
January 2005........       74.34534225        November 2010.......      33.45749180        September 2016
February 2005.......       74.08728960        December 2010.......      32.81380216          and thereafter....        0.00000000
March 2005..........       73.83531139        January 2011........      32.17583082
April 2005..........       73.58933891        February 2011.......      31.54352908

</TABLE>
<TABLE>


                                                     PLANNED PRINCIPAL BALANCES

                                                       SCHEDULE III REDUCTION
<CAPTION>

                          PERCENTAGE OF                                PERCENTAGE OF                                 PERCENTAGE OF
                        AGGREGATE INITIAL                            AGGREGATE INITIAL                             AGGREGATE INITIAL
 DISTRIBUTION DATE      PRINCIPAL BALANCE      DISTRIBUTION DATE     PRINCIPAL BALANCE     DISTRIBUTION DATE       PRINCIPAL BALANCE
 -----------------      -----------------      -----------------     -----------------     -----------------       -----------------
<S>                     <C>                    <C>                   <C>                   <C>                     <C>
July 1999...........       99.69411897%       September 2001......      67.05403166%       November 2003.......       22.79397903%
August 1999.........       99.35559717        October 2001........      64.90181537        December 2003.......       21.51205233
September 1999......       98.98450834        November 2001.......      62.79047852        January 2004........       20.25651599
October 1999........       98.58096826        December 2001.......      60.71936024        February 2004.......       19.02691189
November 1999.......       98.14513474        January 2002........      58.68780886        March 2004..........       17.82278839
December 1999.......       97.67720762        February 2002.......      56.69518184        April 2004..........       16.64370012
January 2000........       97.17742866        March 2002..........      54.74084563        May 2004............       15.48920799
February 2000.......       96.64608138        April 2002..........      52.82417553        June 2004...........       14.35887907
March 2000..........       96.08349081        May 2002............      50.94455556        July 2004...........       13.28328774
April 2000..........       95.49002318        June 2002...........      49.10137837        August 2004.........       12.23076225
May 2000............       94.86608551        July 2002...........      47.29404510        September 2004......       11.20088837
June 2000...........       93.80424993        August 2002.........      45.52196527        October 2004........       10.19325765
July 2000...........       92.43454844        September 2002......      43.78455665        November 2004.......        9.20746739
August 2000.........       90.99619302        October 2002........      42.08124519        December 2004.......        8.24312052
September 2000......       89.49102630        November 2002.......      40.41146482        January 2005........        7.29982558
October 2000........       87.92101520        December 2002.......      38.77465745        February 2005.......        6.37719657
November 2000.......       86.28824743        January 2003........      37.17027275        March 2005..........        5.47485294
December 2000.......       84.59492755        February 2003.......      35.59776813        April 2005..........        4.59241945
January 2001........       82.84337283        March 2003..........      34.05660858        May 2005............        3.72952616
February 2001.......       81.03600875        April 2003..........      32.54626659        June 2005...........        2.88580830
March 2001..........       79.17536426        May 2003 ...........      31.06622203        July 2005...........        2.07041645
April 2001..........       77.26406675        June 2003...........      29.61596207        August 2005.........        1.27333473
May 2001............       75.30541849        July 2003...........      28.19498105        September 2005......        0.48905545
June 2001...........       73.30219578        August 2003.........      26.80278038        October 2005
July 2001...........       71.25725648        September 2003......      25.43886849          and thereafter....        0.00000000
August 2001.........       69.17353410        October 2003........      24.10276068

</TABLE>
<TABLE>


                                                     PLANNED PRINCIPAL BALANCES

                                                        SCHEDULE IV REDUCTION
<CAPTION>

                          PERCENTAGE OF                                PERCENTAGE OF                                 PERCENTAGE OF
                        AGGREGATE INITIAL                            AGGREGATE INITIAL                             AGGREGATE INITIAL
 DISTRIBUTION DATE      PRINCIPAL BALANCE      DISTRIBUTION DATE     PRINCIPAL BALANCE     DISTRIBUTION DATE       PRINCIPAL BALANCE
 -----------------      -----------------      -----------------     -----------------     -----------------       -----------------
<S>                     <C>                    <C>                   <C>                    <C>                     <C>
July 1999...........       99.72257305%       June 2005...........      19.24559495%       May 2011............        3.25220964%
August 1999.........       99.38139991        July 2005...........      18.60673904        June 2011...........        3.20292663
September 1999......       98.97663746        August 2005.........      17.97993755        July 2011...........        3.15438791
October 1999........       98.50853173        September 2005......      17.36499368        August 2011.........        3.10658190
November 1999.......       97.97741828        October 2005........      16.76171370        September 2011......        3.05949716
December 1999.......       97.38372237        November 2005.......      16.16990687        October 2011........        3.01312244
January 2000........       96.72795882        December 2005.......      15.58938543        November 2011.......        2.96744668
February 2000.......       96.01073169        January 2006........      15.01996452        December 2011.......        2.92245895
March 2000..........       95.23273373        February 2006.......      14.46146218        January 2012........        2.87814852
April 2000..........       94.39474560        March 2006..........      13.91369924        February 2012.......        2.83450481
May 2000............       93.49763489        April 2006..........      13.37649934        March 2012..........        2.79151741
June 2000...........       92.54235495        May 2006............      12.84968887        April 2012..........        2.74917607
July 2000...........       91.52994346        June 2006...........      12.33309690        May 2012............        2.70747068
August 2000.........       90.46152081        July 2006...........      11.90585989        June 2012...........        2.66639131
September 2000......       89.33828830        August 2006.........      11.48709188        July 2012...........        2.62592816
October 2000........       88.16152611        September 2006......      11.07664635        August 2012.........        2.58607159
November 2000.......       86.93259107        October 2006........      10.67437916        September 2012......        2.54681211
December 2000.......       85.65291426        November 2006.......      10.28014850        October 2012........        2.50814038
January 2001........       84.32399838        December 2006.......       9.89381486        November 2012.......        2.47004719
February 2001.......       82.94741500        January 2007........       9.51524098        December 2012.......        2.43252348
March 2001..........       81.52480154        February 2007.......       9.14429183        January 2013........        2.39556033
April 2001..........       80.05785821        March 2007..........       8.78083458        February 2013.......        2.35914894
May 2001............       78.54881593        April 2007..........       8.42473856        March 2013..........        2.32328067
June 2001...........       76.99947003        May 2007............       8.07587520        April 2013..........        2.28794701
July 2001...........       75.41166806        June 2007...........       7.73411804        May 2013............        2.25313955
August 2001.........       73.78730615        July 2007...........       7.46923211        June 2013...........        2.21885006
September 2001......       72.12832517        August 2007.........       7.20952249        July 2013...........        2.18507038
October 2001........       70.43670684        September 2007......       6.95489682        August 2013.........        2.15179252
November 2001.......       68.77191947        October 2007........       6.70526431        September 2013......        2.11900859
December 2001.......       67.13355833        November 2007.......       6.46053569        October 2013........        2.08671083
January 2002........       65.52122481        December 2007.......       6.29988977        November 2013.......        2.05489160
February 2002.......       63.93452635        January 2008........       6.16890937        December 2013.......        2.02354336
March 2002..........       62.37307636        February 2008.......       6.04045471        January 2014........        1.99265872
April 2002..........       60.83649409        March 2008..........       5.91448044        February 2014.......        1.96223037
May 2002............       59.32440458        April 2008..........       5.79094198        March 2014..........        1.93225113
June 2002...........       57.83643856        May 2008............       5.66979551        April 2014..........        1.90271393
July 2002...........       56.37223236        June 2008...........       5.55099796        May 2014............        1.87361180
August 2002.........       54.93142784        July 2008...........       5.46675109        June 2014...........        1.84493789
September 2002......       53.51367229        August 2008.........       5.38379073        July 2014...........        1.81668545
October 2002........       52.11861835        September 2008......       5.30209700        August 2014.........        1.78884782
November 2002.......       50.74592395        October 2008........       5.22165033        September 2014......        1.76141846
December 2002.......       49.39525222        November 2008.......       5.14243145        October 2014........        1.73439093
January 2003........       48.06627138        December 2008.......       5.06442136        November 2014.......        1.70775889
February 2003.......       46.75865473        January 2009........       4.98760139        December 2014.......        1.68151608
March 2003..........       45.47208050        February 2009.......       4.91195312        January 2015........        1.65565635
April 2003..........       44.20623183        March 2009..........       4.83745842        February 2015.......        1.63017366
May 2003............       42.96079669        April 2009..........       4.76409945        March 2015..........        1.60506203
June 2003...........       41.73546777        May 2009............       4.69185862        April 2015..........        1.58031560
July 2003...........       40.52994245        June 2009...........       4.62071862        May 2015............        1.55592858
August 2003.........       39.34392272        July 2009...........       4.55066241        June 2015...........        1.53189530
September 2003......       38.17711509        August 2009.........       4.48167320        July 2015...........        1.50821013
October 2003........       37.02923054        September 2009......       4.41373446        August 2015.........        1.48486757
November 2003.......       35.89998446        October 2009........       4.34682990        September 2015......        1.46186219
December 2003.......       34.78909658        November 2009.......       4.28094350        October 2015........        1.43918864
January 2004........       33.69629087        December 2009.......       4.21605948        November 2015.......        1.41684165
February 2004.......       32.62129554        January 2010........       4.15216228        December 2015.......        1.39481604
March 2004..........       31.56384291        February 2010.......       4.08923659        January 2016........        1.37310670
April 2004..........       30.52366941        March 2010..........       4.02726735        February 2016.......        1.35170863
May 2004............       29.50051546        April 2010..........       3.96623971        March 2016..........        1.33061685
June 2004...........       28.49412547        May 2010............       3.90613906        April 2016..........        1.30982652
July 2004...........       27.64357625        June 2010...........       3.84695098        May 2016............        1.28933283
August 2004.........       26.80832286        July 2010...........       3.78866132        June 2016...........        1.26913106
September 2004......       25.98812326        August 2010.........       3.73125612        July 2016...........        1.24921656
October 2004........       25.18273906        September 2010......       3.67472162        August 2016.........        1.22958477
November 2004.......       24.39193556        October 2010........       3.61904430        September 2016......        1.21023117
December 2004.......       23.61548162        November 2010.......       3.56421082        October 2016........        1.19115133
January 2005........       22.85314966        December 2010.......       3.51020807        November 2016.......        1.17234088
February 2005.......       22.10471558        January 2011........       3.45702311        December 2016.......        1.15379553
March 2005..........       21.36995870        February 2011.......       3.40464323        January 2017........        1.13551104
April 2005..........       20.64866173        March 2011..........       3.35305588        February 2017.......        1.11748326
May 2005............       19.94061071        April 2011..........       3.30224874        March 2017..........        1.09970807

</TABLE>
<TABLE>


                                                     PLANNED PRINCIPAL BALANCES

                                                  SCHEDULE IV REDUCTION--CONTINUED
<CAPTION>

                          PERCENTAGE OF                                PERCENTAGE OF                                 PERCENTAGE OF
                        AGGREGATE INITIAL                            AGGREGATE INITIAL                             AGGREGATE INITIAL
 DISTRIBUTION DATE      PRINCIPAL BALANCE      DISTRIBUTION DATE     PRINCIPAL BALANCE     DISTRIBUTION DATE       PRINCIPAL BALANCE
 -----------------      -----------------      -----------------     -----------------     -----------------       -----------------
<S>                     <C>                    <C>                   <C>                   <C>                     <C>
April 2017..........        1.08218143%       May 2021............       0.45852055%       June 2025...........        0.12616269%
May 2017............        1.06489939        June 2021...........       0.44943315        July 2025...........        0.12184937
June 2017...........        1.04785801        July 2021...........       0.44045374        August 2025.........        0.11762230
July 2017...........        1.03105345        August 2021.........       0.43158054        September 2025......        0.11348001
August 2017.........        1.01448192        September 2021......       0.42281181        October 2025........        0.10942102
September 2017......        0.99813967        October 2021........       0.41414582        November 2025.......        0.10544390
October 2017........        0.98202305        November 2021.......       0.40558087        December 2025.......        0.10154725
November 2017.......        0.96612842        December 2021.......       0.39711529        January 2026........        0.09772966
December 2017.......        0.95045222        January 2022........       0.38874744        February 2026.......        0.09398978
January 2018........        0.93499095        February 2022.......       0.38047571        March 2026..........        0.09032624
February 2018.......        0.91974115        March 2022..........       0.37229849        April 2026..........        0.08673774
March 2018..........        0.90469944        April 2022..........       0.36421423        May 2026............        0.08322297
April 2018..........        0.88986245        May 2022............       0.35622138        June 2026...........        0.07978065
May 2018............        0.87522689        June 2022...........       0.34831843        July 2026...........        0.07640951
June 2018...........        0.86078953        July 2022...........       0.34050387        August 2026.........        0.07310832
July 2018...........        0.84654718        August 2022.........       0.33277625        September 2026......        0.06987585
August 2018.........        0.83249668        September 2022......       0.32513411        October 2026........        0.06671091
September 2018......        0.81863495        October 2022........       0.31757603        November 2026.......        0.06361232
October 2018........        0.80495893        November 2022.......       0.31010062        December 2026.......        0.06057890
November 2018.......        0.79146565        December 2022.......       0.30270648        January 2027........        0.05760954
December 2018.......        0.77815213        January 2023........       0.29539227        February 2027.......        0.05470308
January 2019........        0.76501548        February 2023.......       0.28815665        March 2027..........        0.05185845
February 2019.......        0.75205285        March 2023..........       0.28099830        April 2027..........        0.04907453
March 2019..........        0.73926140        April 2023..........       0.27391593        May 2027............        0.04635027
April 2019..........        0.72663838        May 2023............       0.26690828        June 2027...........        0.04368462
May 2019............        0.71418106        June 2023...........       0.25997408        July 2027...........        0.04107653
June 2019...........        0.70188674        July 2023...........       0.25311210        August 2027.........        0.03852500
July 2019...........        0.68975279        August 2023.........       0.24632379        September 2027......        0.03602901
August 2019.........        0.67777661        September 2023......       0.23966387        October 2027........        0.03358760
September 2019......        0.66595564        October 2023........       0.23313020        November 2027.......        0.03119978
October 2019........        0.65428735        November 2023.......       0.22672064        December 2027.......        0.02886461
November 2019.......        0.64276926        December 2023.......       0.22043310        January 2028........        0.02658114
December 2019.......        0.63139893        January 2024........       0.21426553        February 2028.......        0.02434847
January 2020........        0.62017396        February 2024.......       0.20821589        March 2028..........        0.02216569
February 2020.......        0.60909198        March 2024..........       0.20229965        April 2028..........        0.02003191
March 2020..........        0.59815066        April 2024..........       0.19649699        May 2028............        0.01794625
April 2020..........        0.58734770        May 2024............       0.19080598        June 2028...........        0.01590785
May 2020............        0.57668086        June 2024...........       0.18522473        July 2028...........        0.01391588
June 2020...........        0.56614791        July 2024...........       0.17975139        August 2028.........        0.01196951
July 2020...........        0.55574666        August 2024.........       0.17438412        September 2028......        0.01006793
August 2020.........        0.54547495        September 2024......       0.16912111        October 2028........        0.00821035
September 2020......        0.53533068        October 2024........       0.16396060        November 2028.......        0.00640277
October 2020........        0.52531176        November 2024.......       0.15890084        December 2028.......        0.00463732
November 2020.......        0.51541612        December 2024.......       0.15394011        January 2029........        0.00291323
December 2020.......        0.50564177        January 2025........       0.14907673        February 2029.......        0.00122976
January 2021........        0.49598669        February 2025.......       0.14430902        March 2029
February 2021.......        0.48644894        March 2025..........       0.13963536          and thereafter....        0.00000000
March 2021..........        0.47702660        April 2025..........       0.13505414
April 2021..........        0.46771775        May 2025............       0.13056376

</TABLE>

<PAGE>




            (c)   Notwithstanding  the  foregoing,  on  each  Distribution  Date
occurring on or subsequent to the Cross-Over  Date, the Class A Non-PO Principal
Distribution   Amount  shall  be  distributed  among  the  Classes  of  Class  A
Certificates  (other than the Class A-PO  Certificates)  pro rata in  accordance
with  their  outstanding   Principal  Balances  without  regard  to  either  the
proportions or the priorities set forth in Section 4.01(b).

            (d)   For  purposes  of  determining  whether the Classes of Class B
Certificates are eligible to receive  distributions of principal with respect to
any Distribution Date, the following tests shall apply:

            (1) if the Current  Class B-1  Fractional  Interest is less than the
      Original Class B-1 Fractional Interest and the Class B-1 Principal Balance
      is greater than zero,  the Class B-2,  Class B-3, Class B-4, Class B-5 and
      Class B-6 Certificates  shall not be eligible to receive  distributions of
      principal; or

            (2) if the Current  Class B-2  Fractional  Interest is less than the
      Original Class B-2 Fractional Interest and the Class B-2 Principal Balance
      is greater than zero,  the Class B-3,  Class B-4,  Class B-5 and Class B-6
      Certificates shall not be eligible to receive  distributions of principal;
      or

            (3) if the Current  Class B-3  Fractional  Interest is less than the
      Original Class B-3 Fractional Interest and the Class B-3 Principal Balance
      is greater than zero, the Class B-4, Class B-5 and Class B-6  Certificates
      shall not be eligible to receive distributions of principal; or

            (4) if the Current  Class B-4  Fractional  Interest is less than the
      Original Class B-4 Fractional Interest and the Class B-4 Principal Balance
      is greater than zero, the Class B-5 and Class B-6  Certificates  shall not
      be eligible to receive distributions of principal; or

            (5) if the Current  Class B-5  Fractional  Interest is less than the
      Original Class B-5 Fractional Interest and the Class B-5 Principal Balance
      is greater than zero, the Class B-6 Certificates  shall not be eligible to
      receive distributions of principal.

               (ii)  Notwithstanding the foregoing,  if on any Distribution Date
the aggregate  distributions  to Holders of the Classes of Class B  Certificates
entitled  to receive  distributions  of  principal  would  reduce the  Principal
Balances   of  the  Classes  of  Class  B   Certificates   entitled  to  receive
distributions of principal below zero,  first the Class B Prepayment  Percentage
of any  affected  Class  of Class B  Certificates  for  such  Distribution  Date
beginning with the affected Class with the lowest  numerical  Class  designation
and then,  if  necessary,  the Class B  Percentage  of such Class of the Class B
Certificates  for such  Distribution  Date shall be  reduced  to the  respective
percentages  necessary to bring the  Principal  Balance of such Class of Class B
Certificates  to  zero.  The  Class B  Prepayment  Percentages  and the  Class B
Percentages of the remaining  Classes of Class B Certificates will be recomputed
substituting  for  the  Subordinated   Prepayment  Percentage  and  Subordinated
Percentage in such  computations  the  difference  between (A) the  Subordinated
Prepayment  Percentage or Subordinated  Percentage,  as the case may be, and (B)
the percentages  determined in accordance with the preceding  sentence necessary
to bring the Principal  Balances of the affected Classes of Class B Certificates
to zero; provided, however, that if the Principal Balances of all the Classes of
Class B Certificates  eligible to receive  distributions  of principal  shall be
reduced to zero on such Distribution Date, the Class B Prepayment Percentage and
the Class B  Percentage  of the Class of Class B  Certificates  with the  lowest
numerical  Class  designation  which would  otherwise be  ineligible  to receive
distributions  of principal  in  accordance  with this  Section  shall equal the
remainder of the Subordinated  Prepayment  Percentage for such Distribution Date
minus the sum of the Class B  Prepayment  Percentages  of the Classes of Class B
Certificates  having  lower  numerical  Class  designations,  if  any,  and  the
remainder of the Subordinated  Percentage for such  Distribution  Date minus the
sum of the Class B  Percentages  of the Classes of Class B  Certificates  having
lower numerical Class designations, if any, respectively. Any entitlement of any
Class of Class B  Certificates  to principal  payments  solely  pursuant to this
clause  (ii) shall not cause  such Class to be  regarded  as being  eligible  to
receive  principal  distributions  for the purpose of applying the definition of
its Class B Percentage or Class B Prepayment Percentage.

            (e)   The Trust  Administrator  shall  establish  and  maintain  the
Upper-Tier  Certificate Account,  which shall be a separate trust account and an
Eligible Account.  On each  Distribution Date other than the Final  Distribution
Date (if such Final  Distribution  Date is in connection  with a purchase of the
assets of the Trust Estate by the Seller),  the Paying Agent shall, on behalf of
the Master Servicer, from funds available on deposit in the Payment Account, (i)
deposit, in immediately available funds, by wire transfer or otherwise, into the
Upper-Tier  Certificate  Account  the  Lower-Tier  Distribution  Amount and (ii)
distribute  to the Class  A-LR  Certificateholder  (other  than as  provided  in
Section 9.01 respecting the final distribution to  Certificateholders)  by check
mailed to such Holder at the address of such Holder appearing in the Certificate
Register,  the Class A  Distribution  Amount  with  respect  to the  Class  A-LR
Certificate and all other amounts  distributable to the Class A-LR  Certificate.
The Trust  Administrator  may clear and  terminate  the  Upper-Tier  Certificate
Account pursuant to Section 9.01.

            (f)   On each  Distribution  Date other than the Final  Distribution
Date (if such Final  Distribution  Date is in connection  with a purchase of the
assets of the Trust Estate by the Seller),  the Paying Agent shall, on behalf of
the  Master  Servicer,  from  funds  remitted  to it  by  the  Master  Servicer,
distribute  to each  Certificateholder  of record  (other  than the  Class  A-LR
Certificateholder)  on the  preceding  Record  Date  (other  than as provided in
Section 9.01 respecting the final distribution to  Certificateholders  or in the
last  paragraph of this Section  4.01(f)  respecting the final  distribution  in
respect of any Class) either in immediately  available funds by wire transfer to
the  account  of  such  Certificateholder  at a  bank  or  other  entity  having
appropriate  facilities therefor, if such  Certificateholder  holds Certificates
having a Denomination at least equal to that specified in Section 11.24, and has
so notified  the Master  Servicer or, if  applicable,  the Paying Agent at least
seven  Business  Days prior to the  Distribution  Date or, if such Holder  holds
Certificates  having,  in the aggregate,  a Denomination less than the requisite
minimum  Denomination  or if such Holder holds the Class A-R  Certificate or has
not so notified the Paying Agent,  by check mailed to such Holder at the address
of such Holder appearing in the Certificate Register, such Holder's share of the
Class A  Distribution  Amount with respect to each Class of Class A Certificates
(other than the Class A-12  Certificates)  and the Class B  Distribution  Amount
with respect to each such Class of Class B  Certificates  and in the case of the
Class A-12 Certificates, as provided in Section 4.07.

            In the  event  that,  on any  Distribution  Date  prior to the Final
Distribution  Date,  the Principal  Balance of any Class of Class A Certificates
(other than the Class A-8, Class A-21, Class A-R or Class A-LR  Certificates) or
the Principal  Balance of any Class of Class B Certificates  would be reduced to
zero,  or in the case of the Class A-8  Certificates,  upon the later of (a) the
Principal  Balance of such Class  would be reduced to zero or (b) each Class A-8
IO Notional  Amount  would be reduced to zero,  or in the case of the Class A-21
Certificates,  the Class A-21  Notional  Amount  would be  reduced to zero,  the
Master  Servicer  shall,  as soon as practicable  after the  Determination  Date
relating to such  Distribution  Date, send a notice to the Trust  Administrator.
The Trust  Administrator  will then send a notice to each  Certificateholder  of
such Class with a copy to the Certificate  Registrar,  specifying that the final
distribution  with respect to such Class will be made on such  Distribution Date
only  upon  the   presentation   and   surrender  of  such   Certificateholder's
Certificates  at the  office  or  agency  of  the  Trust  Administrator  therein
specified;  provided,  however,  that the  failure to give such  notice will not
entitle a  Certificateholder  to any interest  beyond the interest  payable with
respect to such Distribution Date in accordance with Section 4.01(a)(i).

            (g)   The Paying  Agent (or if no Paying  Agent is  appointed by the
Master  Servicer,  the Master  Servicer)  shall withhold or cause to be withheld
such  amounts  as may be  required  by  the  Code  (giving  full  effect  to any
exemptions from withholding and related certifications  required to be furnished
by  Certificateholders  and any  reductions  to  withholding  by  virtue  of any
bilateral tax treaties and any applicable certification required to be furnished
by  Certificateholders  with respect  thereto) from  distributions to be made to
Persons other than U.S. Persons ("Non-U.S.  Persons"). Amounts withheld pursuant
to this  Section  4.01(g)  shall be treated as having  been  distributed  to the
related  Certificateholder for all purposes of this Agreement.  For the purposes
of this  paragraph,  a "U.S.  Person"  is a citizen  or  resident  of the United
States,  a corporation  or  partnership  (unless,  in the case of a partnership,
Treasury  regulations are adopted that provide otherwise),  created or organized
in or under the laws of the United States,  any state thereof or the District of
Columbia,  including  an entity  treated as a  corporation  or  partnership  for
federal income tax purposes,  an estate whose income is subject to United States
federal  income tax  regardless of its source,  or a trust if a court within the
United States is able to exercise primary supervision over the administration of
such trust,  and one or more such U.S. Persons have the authority to control all
substantial  decisions of such trust (or, to the extent  provided in  applicable
Treasury  regulations,  certain trusts in existence on August 20, 1996 which are
eligible to elect to be treated as U.S. Persons).

            Section 4.02     Allocation of Realized Losses.

            (a)   With respect to any Distribution  Date, the principal  portion
of Realized  Losses (other than Debt Service  Reductions,  Excess Special Hazard
Losses,  Excess Fraud Losses and Excess Bankruptcy  Losses) will be allocated as
follows:

            first, to the Class B-6  Certificates  until the Class B-6 Principal
      Balance has been reduced to zero;

            second, to the Class B-5 Certificates  until the Class B-5 Principal
      Balance has been reduced to zero;

            third, to the Class B-4  Certificates  until the Class B-4 Principal
      Balance has been reduced to zero;

            fourth, to the Class B-3 Certificates  until the Class B-3 Principal
      Balance has been reduced to zero;

            fifth, to the Class B-2  Certificates  until the Class B-2 Principal
      Balance has been reduced to zero;

            sixth, to the Class B-1  Certificates  until the Class B-1 Principal
      Balance has been reduced to zero; and

            seventh,  concurrently,  to the Class A Certificates (other than the
      Class A-PO Certificates) and Class A-PO  Certificates,  pro rata, based on
      the Non-PO Fraction and the PO Fraction, respectively.

            This  allocation  of Realized  Losses  will be effected  through the
reduction of the applicable Class's Principal Balance.

            (b)   With respect to any Distribution  Date, the principal  portion
of Excess  Special  Hazard  Losses,  Excess Fraud  Losses and Excess  Bankruptcy
Losses  occurring  with respect to any Mortgage Loan allocable to the Class A-PO
Certificates will equal the product of the amount of any such principal loss and
the PO Fraction for such  Mortgage  Loan.  The  principal  portion of any Excess
Special  Hazard  Losses,  Excess  Fraud  Losses  and  Excess  Bankruptcy  Losses
remaining after allocation to the Class A-PO Certificates in accordance with the
preceding  sentence  shall be allocated pro rata among the Class A  Certificates
(other than the Class A-PO  Certificates) and Class B Certificates  based on the
Class  A  Non-PO   Principal   Balance  and  the  Class  B  Principal   Balance,
respectively.  Any such  loss  allocated  to the Class A  Certificates  shall be
allocated on the subsequent  Determination Date among the outstanding Classes of
Class A  Certificates  (other  than the Class  A-8,  Class  A-20 and Class  A-PO
Certificates),  the Class A-8 Accrual Component and the Class A-20 Components in
accordance with the Class A Loss Percentages as of such Determination  Date. Any
such loss  allocated to the Class B  Certificates  shall be  allocated  pro rata
among the outstanding  Classes of Class B Certificates  based on their Principal
Balances.

            (c)   Any  Realized   Losses   allocated  to  a  Class  of  Class  A
Certificates  or Class B  Certificates  pursuant  to Section  4.02(a) or Section
4.02(b) shall be allocated  among the  Certificates of such Class based on their
Percentage Interests.

            (d)   In the event that there is a Recovery  of an amount in respect
of  principal  of a  Mortgage  Loan which had  previously  been  allocated  as a
Realized Loss to any Classes of Class A  Certificates  or any Classes of Class B
Certificates,  each outstanding Class to which such Realized Loss had previously
been  allocated  shall be entitled to its share (with  respect to the Class A-PO
Certificates,  based on the PO Fraction of such  Mortgage Loan and, with respect
to the Class A Certificates (other than the Class A-PO Certificates) and Class B
Certificates,  based on their  pro rata  share of the  Non-PO  Fraction  of such
Mortgage  Loan)  of  such  Recovery  up to the  amount  of  such  Realized  Loss
previously  allocated  to such  Class  on the  Distribution  Date  in the  month
following  the month in which such  recovery  is  received.  When the  Principal
Balance of a Class of  Certificates  has been reduced to zero,  such Class shall
not be entitled to any share of such  Recovery.  In the event that the amount of
such Recovery exceeds the amount of such Recovery  allocated to each outstanding
Class in accordance with the preceding provisions,  each outstanding Class shall
be entitled to its pro rata share (determined as described above) of such excess
up to the amount of any unrecovered  Realized Loss previously  allocated to such
Class.  Notwithstanding the foregoing  provisions,  but subject to the following
proviso,  if such Recovery  occurs within two years of the  realization  of such
loss and (i) is the  result  of an  event  that  would  have  given  rise to the
repurchase of the related  Mortgage Loan by the Seller  pursuant to Section 2.02
or 2.03, or (ii) represents in whole or part funds which the applicable Servicer
had  received  in  respect  of a  Liquidated  Loan  but  failed  to remit to the
Certificate  Account on or prior to the Business Day preceding the  Distribution
Date following the Applicable  Unscheduled Principal Receipt Period in which the
Mortgage  Loan  became  a  Liquidated  Loan,  such  Recovery  may,  at the  sole
discretion of the Master Servicer,  be treated as a repurchase or an Unscheduled
Principal  Receipt with respect to such  Mortgage  Loan, as the case may be, the
Realized  Loss  previously  recognized  may be  reversed  and  treated  for  all
subsequent purposes as if it had never occurred and the Master Servicer may make
such adjustments to interest or principal  distributions on the Certificates and
to the principal balances of the Certificates as the Master Servicer in its good
faith judgment and sole  discretion  deems  necessary or desirable to effectuate
the  reversal  of the  Realized  Loss  and the  treatment  of such  amount  as a
repurchase or as an Unscheduled  Principal Receipt, as the case may be; provided
that such actions do not result in the aggregate  distributions  made in respect
of each Class of Certificates  whose principal  balances were previously reduced
as a result of such Realized Loss being less than such Class would have received
if such Recovery had been  deposited in the  Certificate  Account on or prior to
the Business Day  preceding  the  Distribution  Date  following  the  Applicable
Unscheduled  Principal  Receipt  Period  in which  the  Mortgage  Loan  became a
Liquidated Loan.

            (e)   The interest  portion of Excess Special Hazard Losses,  Excess
Fraud Losses and Excess  Bankruptcy  Losses  shall be allocated  between (i) the
Class A Certificates  and the Premium Payment and (ii) the Class B Certificates,
pro rata based on the Class A Interest  Accrual  Amount and the Premium  Payment
and the Class B Interest  Accrual  Amount  for the  related  Distribution  Date,
without  regard  to any  reduction  pursuant  to this  sentence.  Any such  loss
allocated to the Class A Certificates and the Premium Payment shall be allocated
among the outstanding  Classes of Class A Certificates (other than the Class A-8
Certificates)  and the Class A-8  Components  and the Premium  Payment  based on
their Class A Interest  Percentages and the Premium Percentage,  as the case may
be. Any such loss allocated to the Class B Certificates  will be allocated among
the outstanding  Classes of Class B Certificates based on their Class B Interest
Percentages.  In addition,  after the Class B Principal Balance has been reduced
to zero,  the interest  portion of Realized  Losses  (other than Excess  Special
Hazard  Losses,  Excess  Fraud  Losses and  Excess  Bankruptcy  Losses)  will be
allocated among the outstanding  Classes of Class A Certificates and the Premium
Payment based on their Class A Interest  Percentages and Premium Percentage,  as
the case may be.

            (f)   Realized Losses allocated in accordance with this Section 4.02
will be allocated on the  Determination  Date in the second month  following the
month in which such loss was incurred with respect to the preceding Distribution
Date.

            (g)   With respect to any Distribution  Date, the principal  portion
of Realized Losses and recoveries  attributable to previously allocated Realized
Losses  allocated  pursuant  to this  Section  4.02  will be  allocated  to each
Uncertificated Lower-Tier Interest in an amount equal to the amount allocated to
its respective Corresponding Upper-Tier Class, Classes,  Component or Components
as provided above.

            With  respect to any  Distribution  Date,  the  interest  portion of
Realized  Losses  allocated  pursuant to this  Section 4.02 will be allocated to
each  Uncertificated  Lower-Tier  Interest in the same relative  proportions  as
interest is allocated to such Uncertificated Lower-Tier Interest.

            Section 4.03      Paying Agent.

            (a)   The Master Servicer hereby appoints the Trust Administrator as
initial Paying Agent to make distributions to Certificateholders  and to forward
to Certificateholders the periodic statements and the annual statements required
by Section 4.04 as agent of the Master Servicer.

            The Master  Servicer may, at any time,  remove or replace the Paying
Agent.

            The Master  Servicer  shall  cause any Paying  Agent that is not the
Trust  Administrator  to  execute  and  deliver  to the Trust  Administrator  an
instrument in which such Paying Agent agrees with the Trust  Administrator  that
such Paying Agent shall:

               (i)     hold all amounts  remitted  to it by the Master  Servicer
      for  distribution  to  Certificateholders  in  trust  for the  benefit  of
      Certificateholders    until    such    amounts    are    distributed    to
      Certificateholders or otherwise disposed of as herein provided;

               (ii)    give the Trust Administrator notice of any default by the
      Master Servicer in remitting any required amount; and

               (iii)   at any time during the  continuance  of any such default,
      upon the written request of the Trust Administrator,  forthwith pay to the
      Trust Administrator all amounts held in trust by such Paying Agent.

            (b)   The  Paying  Agent  shall  establish  and  maintain  a Payment
Account,  which shall be a separate  trust account and an Eligible  Account,  in
which  the  Master  Servicer  shall  cause  to be  deposited  from  funds in the
Certificate Account or, to the extent required hereunder, from its own funds (i)
at or before  10:00 a.m.,  New York time,  on the Business  Day  preceding  each
Distribution Date, by wire transfer of immediately available funds, any Periodic
Advance for such  Distribution  Date,  pursuant  to Section  3.03 and (ii) at or
before  10:00  a.m.,   New  York  time,  on  the  Business  Day  preceding  each
Distribution  Date,  by wire transfer of  immediately  available  funds,  (a) an
amount equal to the Pool Distribution  Amount, (b) Net Foreclosure  Profits,  if
any, with respect to such  Distribution  Date and (c) the amount of any recovery
in respect of a Realized Loss. The Master Servicer may cause the Paying Agent to
invest  the  funds  in the  Payment  Account.  Any such  investment  shall be in
Eligible  Investments,  which  shall  mature  not later  than the  Business  Day
preceding the related  Distribution  Date (unless the Eligible  Investments  are
obligations of the Trust Administrator,  in which case such Eligible Investments
shall  mature not later than the  Distribution  Date),  and shall not be sold or
disposed  of prior to  maturity.  All  income  and gain  realized  from any such
investment  shall be for the benefit of the Master Servicer and shall be subject
to its withdrawal or order from time to time. The amount of any losses  incurred
in respect of any such investments  shall be deposited in the Payment Account by
the Master  Servicer out of its own funds  immediately  as realized.  The Paying
Agent may withdraw from the Payment Account any amount  deposited in the Payment
Account  that  was not  required  to be  deposited  therein  and may  clear  and
terminate the Payment Account pursuant to Section 9.01.

            Section 4.04      Statements  to  Certificateholders;  Report to the
Trust Administrator, Financial Security and the Seller.

            Concurrently with each distribution pursuant to Section 4.01(f), the
Master  Servicer,  or the Paying Agent  appointed by the Master  Servicer  (upon
receipt of such statement from the Master  Servicer),  shall forward or cause to
be forwarded by mail to each Holder of a  Certificate,  the Seller and Financial
Security a statement setting forth:

               (i)      the amount of such distribution to Holders of each Class
      of Class A Certificates allocable to principal, separately identifying the
      aggregate amount of any Unscheduled Principal Receipts included therein;

               (ii)     (a) the amount of such  distribution  to Holders of each
      Class of Class A Certificates allocable to interest, (b) the amount of the
      Current Class A Interest  Distribution  Amount  allocated to each Class of
      Class A Certificates,  (c) any Class A Interest  Shortfall Amounts arising
      with respect to such  Distribution  Date and any remaining  Class A Unpaid
      Interest  Shortfall with respect to each Class after giving effect to such
      distribution,  (d) the  amount  of any  Non-Supported  Interest  Shortfall
      allocated to each Class of Class A Certificates for such Distribution Date
      and (e) the interest portion of Excess Special Hazard Losses, Excess Fraud
      Losses  and  Excess  Bankruptcy  Losses  allocated  to each Class for such
      Distribution Date;

               (iii)    the amount of such distribution to Holders of each Class
      of Class B Certificates allocable to principal, separately identifying the
      aggregate amount of any Unscheduled Principal Receipts included therein;

               (iv)     (a) the amount of such  distribution  to Holders of each
      Class of Class B Certificates allocable to interest, (b) the amount of the
      Current Class B Interest  Distribution  Amount  allocated to each Class of
      Class B Certificates,  (c) any Class B Interest  Shortfall Amounts arising
      with respect to such  Distribution  Date and any remaining  Class B Unpaid
      Interest  Shortfall  with  respect to each  Class of Class B  Certificates
      after  giving  effect  to  such  distribution,   (d)  the  amount  of  any
      Non-Supported  Interest  Shortfall  allocated  to each  Class  of  Class B
      Certificates for such  Distribution  Date, and (e) the interest portion of
      Excess Special Hazard  Losses,  Excess Fraud Losses and Excess  Bankruptcy
      Losses   allocated  to  each  Class  of  Class  B  Certificates  for  such
      Distribution Date;

               (v)      the amount of any Periodic Advance by any Servicer,  the
      Master  Servicer  or the Trust  Administrator  pursuant  to the  Servicing
      Agreements or this Agreement;

               (vi)     the  number  of  Mortgage  Loans  outstanding  as of the
      preceding Determination Date;

               (vii)    the Class A Principal Balance,  the Principal Balance of
      each Class of Class A Certificates,  the Class B Principal Balance and the
      Principal  Balance  of  each  Class  of  Class  B  Certificates  as of the
      following  Determination  Date after giving effect to the distributions of
      principal  made,  and the principal  portion of Realized  Losses,  if any,
      allocated with respect to such Distribution Date;

               (viii)   the Adjusted  Pool Amount,  the Adjusted Pool Amount (PO
      Portion),  the Pool Scheduled  Principal Balance of the Mortgage Loans for
      such  Distribution Date and the aggregate  Scheduled  Principal Balance of
      the Discount Mortgage Loans for such Distribution Date;

               (ix)     the  aggregate   Scheduled  Principal  Balances  of  the
      Mortgage  Loans  serviced by Norwest  Mortgage and,  collectively,  by the
      Other Servicers as of such Distribution Date;

               (x)      the Class A Percentage  for the  following  Distribution
      Date (without  giving effect to Unscheduled  Principal  Receipts  received
      after the Applicable  Unscheduled Principal Receipt Period for the current
      Distribution  Date which are applied by a Servicer  during such Applicable
      Unscheduled Principal Receipt Period);

               (xi)     the  Class A  Prepayment  Percentage  for the  following
      Distribution Date (without giving effect to Unscheduled Principal Receipts
      received after the Applicable Unscheduled Principal Receipt Period for the
      current  Distribution  Date which are  applied by a Servicer  during  such
      Applicable Unscheduled Principal Receipt Period);

               (xii)    the Class B-1,  Class B-2,  Class B-3,  Class B-4, Class
      B-5 and Class B-6 Percentages for the following Distribution Date (without
      giving  effect  to  Unscheduled  Principal  Receipts  received  after  the
      Applicable   Unscheduled   Principal   Receipt   Period  for  the  current
      Distribution  Date which are applied by a Servicer  during such Applicable
      Unscheduled Principal Receipt Period);

               (xiii)   the Class B-1,  Class B-2,  Class B-3,  Class B-4, Class
      B-5 and Class B-6 Prepayment  Percentages  for the following  Distribution
      Date (without  giving effect to Unscheduled  Principal  Receipts  received
      after the Applicable  Unscheduled Principal Receipt Period for the current
      Distribution  Date which are applied by a Servicer  during such Applicable
      Unscheduled Principal Receipt Period);

               (xiv)    the number and aggregate  principal balances of Mortgage
      Loans  delinquent  (a) one month,  (b) two months and (c) three  months or
      more;

               (xv)     the  number  and  aggregate  principal  balances  of the
      Mortgage Loans in foreclosure as of the preceding Determination Date;

               (xvi)    the  book  value  of any real  estate  acquired  through
      foreclosure or grant of a deed in lieu of foreclosure;

               (xvii)   the amount of the remaining  Special Hazard Loss Amount,
      Fraud Loss Amount and  Bankruptcy  Loss Amount as of the close of business
      on such Distribution Date;

               (xviii)  the principal and interest  portions of Realized  Losses
      allocated  as of such  Distribution  Date and the amount of such  Realized
      Losses constituting  Excess Special Hazard Losses,  Excess Fraud Losses or
      Excess Bankruptcy Losses;

               (xix)    the aggregate  amount of Bankruptcy  Losses allocated to
      each Class of Class B  Certificates  in  accordance  with Section  4.02(a)
      since the Relevant Anniversary;

               (xx)     the amount by which the Principal  Balance of each Class
      of Class B  Certificates  has been reduced as a result of Realized  Losses
      allocated as of such Distribution Date;

               (xxi)    the unpaid principal  balance of any Mortgage Loan as to
      which the Servicer of such Mortgage Loan has  determined  not to foreclose
      because it believes the related  Mortgaged  Property  may be  contaminated
      with or affected by hazardous wastes or hazardous substances;

               (xxii)   the amount of the  aggregate  Servicing  Fees and Master
      Servicing  Fees paid (and not  previously  reported)  with  respect to the
      related  Distribution Date and the amount by which the aggregate Available
      Master Servicer  Compensation has been reduced by the Prepayment  Interest
      Shortfall for the related Distribution Date;

               (xxiii)  in the case of the Class  A-21  Certificates,  the Class
      A-21 Notional Amount, if any;

               (xxiv)   in the case of the  Class A-8 IO  Components,  the Class
      A-8 IO Notional Amounts, if any;

               (xxv)    in the case of each  Class of  LIBOR  Certificates,  the
      applicable Class A Pass-Through Rate;

               (xxvi)   the Class A-PO Deferred Amount, if any;

               (xxvii)  in the  case of the  Class  A-12  Certificates,  (a) the
      Class A-12 Distribution  Deficiency,  if any, for such Distribution  Date,
      (b) amounts,  if any in respect of the Class A-12 Distribution  Deficiency
      paid under the Policy and (c) the amounts  attributable  to the Class A-12
      Certificates;

               (xxviii) in the case of the Class A-12  Certificates,  the amount
      remaining  in the  Reserve  Fund after  taking  into  account  the Reserve
      Withdrawal for such Distribution Date; and

               (xxix)   such other customary  information as the Master Servicer
      deems necessary or desirable to enable Certificateholders to prepare their
      tax returns;

and shall  deliver a copy of each type of statement to the Trust  Administrator,
who shall provide copies thereof to Persons making written  request  therefor at
the Corporate Trust Office.

            In the case of  information  furnished  with  respect  to a Class of
Class A Certificates  pursuant to clauses (i) and (ii) above and with respect to
a Class of Class B  Certificates  pursuant to clauses (iii) and (iv) above,  the
amounts shall be expressed as a dollar amount per Class A or Class B Certificate
(other  than  the  Class  A-R  and  Class  A-LR   Certificates)  with  a  $1,000
Denomination,  and as a dollar  amount per Class A-R and Class A-LR  Certificate
with a $100 Denomination.

            Within a  reasonable  period of time after the end of each  calendar
year, the Master  Servicer shall furnish or cause to be furnished to each Person
who at any time  during  the  calendar  year was the Holder of a  Certificate  a
statement  containing the information set forth in clauses (i) and (ii)(a) above
in the case of a Class A  Certificateholder  and the  information  set  forth in
clauses  (iii)  and  (iv)(a)  above in the  case of a Class B  Certificateholder
aggregated  for such calendar year or applicable  portion  thereof  during which
such Person was a  Certificateholder.  Such  obligation  of the Master  Servicer
shall  be  deemed  to have  been  satisfied  to the  extent  that  substantially
comparable  information shall be provided by the Master Servicer pursuant to any
requirements of the Code from time to time in force.

            Prior to the close of business on the third  Business Day  preceding
each  Distribution  Date,  the Master  Servicer shall furnish a statement to the
Trust  Administrator,  any Paying Agent and the Seller (the  information in such
statement to be made available to  Certificateholders  by the Master Servicer on
written request)  setting forth the Class A Distribution  Amount with respect to
each Class of Class A  Certificates  and the Class B  Distribution  Amount  with
respect  to each  Class  of  Class B  Certificates.  Upon  receipt  of any  such
statement,  the  Trust  Administrator  shall  promptly  forward  a copy  of such
statement to Financial  Security.  The  determination  by the Master Servicer of
such amounts shall, in the absence of obvious error, be presumptively  deemed to
be correct for all purposes hereunder and the Trust Administrator and the Paying
Agent shall be protected in relying upon the same without any independent  check
or verification.

            In addition to the reports  required  pursuant to this Section 4.04,
the Master  Servicer  shall make  available upon request to each Holder and each
proposed  transferee  of a  Class  A-PO,  Class  B-4,  Class  B-5 or  Class  B-6
Certificate  such additional  information,  if any, as may be required to permit
the proposed transfer to be effected pursuant to Rule 144A.

            Section 4.05      Reports to  Mortgagors  and the  Internal  Revenue
Service.

            The Master  Servicer shall, in each year beginning after the Cut-Off
Date,  make the  reports  of  foreclosures  and  abandonments  of any  Mortgaged
Property  as  required  by Code  Section  6050J.  In  order to  facilitate  this
reporting process,  the Master Servicer shall request that each Servicer,  on or
before January 15th of each year, shall provide to the Internal Revenue Service,
with copies to the Master Servicer,  reports relating to each instance occurring
during the previous  calendar  year in which such  Servicer (i) on behalf of the
Trust  Administrator  acquires  an  interest  in a  Mortgaged  Property  through
foreclosure or other comparable  conversion in full or partial satisfaction of a
Mortgage  Loan  serviced by such  Servicer,  or (ii) knows or has reason to know
that a Mortgaged  Property has been abandoned.  Reports from the Servicers shall
be in form and substance  sufficient to meet the reporting  requirements imposed
by Code Section  6050J.  In addition,  each  Servicer  shall  provide the Master
Servicer with  sufficient  information to allow the Master Servicer to, for each
year ending after the Cut-Off  Date,  provide,  or cause to be provided,  to the
Internal  Revenue  Service and the  Mortgagors  such  information as is required
under Code Sections 6050H  (regarding  payment of interest) and 6050P (regarding
cancellation of indebtedness).

            Section 4.06      Reserve Fund.

            (a)   The Reserve Fund shall be  established on the Closing Date and
maintained by the Trust  Administrator  in accordance with this Section 4.06. At
the time the Reserve Fund is established, the Seller shall cause to be deposited
into the Reserve Fund the amount of $2,500.00.

            With respect to each Distribution Date, the Reserve Withdrawal shall
be  withdrawn  by the Trust  Administrator  from the  amount on  deposit  in the
Reserve  Fund in  accordance  with this  Section  4.06 and  distributed  on such
Distribution Date to the Holders of the Class A-12 Certificates, pro rata, based
on Percentage Interest.

            Notwithstanding anything herein to the contrary, on the Distribution
Date on which the  Principal  Balance  of the Class A-12  Certificates  has been
reduced  to zero,  any  funds  then on  deposit  in the  Reserve  Fund  shall be
distributed  to  Greenwich  Capital at the  address  provided by it to the Trust
Administrator.

            (b)   The Reserve Fund will be an "outside  reserve  fund" under the
REMIC  Provisions that is beneficially  owned for federal income tax purposes by
Greenwich Capital,  which shall report all income,  gain, deduction or loss with
respect thereto, and will not be an asset of the either REMIC.

            Section   4.07    Distributions  in  Reduction  of  the  Class  A-12
Certificates.

            Distributions  in  reduction of the  Principal  Balance of the Class
A-12 Certificates will be made in integral multiples of $1,000 at the request of
the  appropriate  representatives  of Deceased  Holders of such Class and at the
request of Living Holders of such Class or by mandatory  distributions by random
lot,  pursuant to clauses (a) and (d) below,  or on a pro rata basis pursuant to
clause (f) below.

            (a)   On each Distribution Date on which  distributions in reduction
of  the  Principal  Balance  of the  Class  A-12  Certificates  are  made,  such
distributions will be made with respect to such Class in the following priority:

               (i)any  request  by the  personal  representatives  of a Deceased
      Holder or by a surviving  tenant by the  entirety,  by a  surviving  joint
      tenant or by a surviving tenant in common,  but not exceeding an aggregate
      principal balance for such Class of $100,000 per request; and

               (ii)  any  request  by a  Living  Holder,  but not  exceeding  an
      aggregate principal balance for such Class of $10,000 per request.

            Thereafter,  distributions will be made, with respect to such Class,
as provided in clauses (i) and (ii) above up to a second  $100,000  and $10,000,
respectively.  This sequence of priorities will be repeated for each request for
principal  distributions  for such  Class made by the  Beneficial  Owners of the
Class A-12 Certificates until all such requests have been honored.

            For each such sequence of priorities  described above,  requests for
distributions in reduction of the principal  balances of Class A-12 Certificates
presented on behalf of Deceased  Holders in  accordance  with the  provisions of
clause  (i) above will be  accepted  in order of their  receipt by the  Clearing
Agency and requests for  distributions in reduction of the principal  balance of
Class A-12  Certificates  presented  by Living  Holders in  accordance  with the
provisions  of clause (ii) above will be accepted in the order of their  receipt
by the Clearing  Agency after all requests with respect to such Class  presented
in accordance with clause (i) have been honored.  All requests for distributions
in reduction of the principal  balances of the Class A-12  Certificates  will be
accepted in accordance  with the  provisions set forth in Section  4.07(c).  All
requests for  distributions in reduction of the principal  balance of Class A-12
Certificates  with  respect to any  Distribution  Date must be  received  by the
Clearing  Agency and forwarded to, and received by, the Trust  Administrator  no
later than the close of  business  on the  related  Record  Date.  Requests  for
distributions  which are received by the Clearing  Agency and  forwarded to, and
received by, the Trust Administrator after the related Record Date and requests,
in either case, for  distributions not accepted with respect to any Distribution
Date,  will be  treated  as  requests  for  distributions  in  reduction  of the
principal balance of Class A-12 Certificates on the next succeeding Distribution
Date, and each succeeding Distribution Date thereafter,  until each such request
is accepted or is withdrawn as provided in Section 4.07(c). Such requests as are
not so withdrawn  shall retain their order of priority  without the need for any
further action on the part of the  appropriate  Beneficial  Owner of the related
Class A-12  Certificate,  all in accordance  with the procedures of the Clearing
Agency and the Trust Administrator. Upon the transfer of beneficial ownership of
any Class A-12 Certificate,  any distribution  request previously submitted with
respect to such  Certificate will be deemed to have been withdrawn only upon the
receipt by the Trust  Administrator  of  notification  of such withdrawal in the
manner required by the Clearing Agency under its APUT System.

            Distributions  in reduction of the  principal  balances of the Class
A-12 Certificates will be applied,  in the aggregate with respect to such Class,
in an amount  equal to the Class A Non-PO  Principal  Amount  allocable  to such
Class pursuant to Section  4.01(b) plus any amounts  distributable  to the Class
A-12  Certificates  as a payment under the Policy of a Class A-12 Principal Loss
Amount of the type  described  in clause (i) of the  definition  thereof,  minus
amounts to repay any funds  withdrawn  from the  Rounding  Account for the prior
Distribution Date, plus any amounts available for distribution from the Rounding
Account for such Class established as provided in Section 4.07(e), provided that
the aggregate  distribution in reduction of the Principal  Balance of such Class
on any Distribution Date is made in an integral multiple of $1,000.

            To the  extent  that the  portion  of the  Class A Non-PO  Principal
Amount allocable to  distributions in reduction of the Principal  Balance of the
Class A-12 Certificates on any Distribution Date plus any amounts  distributable
to the Class  A-12  Certificates  as a payment  under the Policy of a Class A-12
Principal  Loss  Amount of the type  described  in clause (i) of the  definition
hereof (minus amounts to repay any funds withdrawn from the Rounding  Account on
the prior Distribution Date and plus any amounts required to be distributed from
the  Rounding  Account  pursuant  to  Section  4.07(e))  exceeds  the  aggregate
principal balances of Class A-12 Certificates with respect to which distribution
requests,  as set forth above, have been received  distributions in reduction of
the Principal  Balance of the Class A-12  Certificates will be made by mandatory
distribution pursuant to Section 4.07(d).

            (b)   A Class  A-12  Certificate  shall  be  deemed  to be held by a
Deceased Holder for purposes of this Section 4.07 if the death of the Beneficial
Owner thereof is deemed to have occurred.  Class A-12 Certificates  beneficially
owned by tenants by the  entirety,  joint  tenants or tenants in common  will be
considered to be beneficially  owned by a single owner. The death of a tenant by
the entirety, joint tenant or tenant in common will be deemed to be the death of
the Beneficial Owner, and the Class A-12 Certificates so beneficially owned will
be eligible  for  priority  with  respect to  distributions  in reduction of the
principal  balance of such Class  thereof,  subject  to the  limitations  stated
above. Class A-12 Certificates  beneficially owned by a trust will be considered
to be beneficially  owned by each beneficiary of the trust to the extent of such
beneficiary's  beneficial  interest  therein,  but in no  event  will a  trust's
beneficiaries  collectively  be  deemed to be  Beneficial  Owners of a number of
Individual Class A-12  Certificates  greater than the number of Individual Class
A-12  Certificates of which such trust is the owner.  The death of a beneficiary
of a trust  will be deemed to be the  death of a  Beneficial  Owner of the Class
A-12  Certificates  owned  by the  trust  to the  extent  of such  beneficiary's
beneficial  interest in such trust.  The death of an individual who was a tenant
by the  entirety,  joint  tenant or  tenant in common in a tenancy  which is the
beneficiary of a trust will be deemed to be the death of the beneficiary of such
trust.  The death of a person who,  during his or her lifetime,  was entitled to
substantially all of the beneficial ownership interests in Individual Class A-12
Certificates  will be  deemed to be the  death of the  Beneficial  Owner of such
Class A-12  Certificates  regardless of the  registration of ownership,  if such
beneficial  interest  can be  established  to  the  satisfaction  of  the  Trust
Administrator. Such beneficial interest will be deemed to exist in typical cases
of  street  name or  nominee  ownership,  ownership  by a  Trust  Administrator,
ownership under the Uniform Gifts to Minors Act and community  property or other
joint ownership  arrangements  between a husband and wife.  Beneficial interests
shall include the power to sell,  transfer or otherwise  dispose of a Class A-12
Certificate and the right to receive the proceeds therefrom, as well as interest
and  distributions  in  reduction  of the  principal  balances of the Class A-12
Certificates  payable with respect thereto. The Trust Administrator shall not be
under any duty to determine  independently  the  occurrence  of the death of any
deceased  Beneficial  Owner.  The Trust  Administrator  may rely  entirely  upon
documentation  delivered to it pursuant to Section 4.07(c) in  establishing  the
eligibility of any Beneficial  Owner to receive the priority  accorded  Deceased
Holders in Section 4.07(a).

            (c)   Requests  for  distributions  in  reduction  of the  principal
balance of Class A-12  Certificates must be made by delivering a written request
therefor  to  the  Clearing  Agency  Participant  or  Clearing  Agency  Indirect
Participant  that  maintains  the account  evidencing  such  Beneficial  Owner's
interest  in Class  A-12  Certificates.  In the case of a request on behalf of a
Deceased Holder,  appropriate evidence of death and any tax waivers are required
to be forwarded to the Trust  Administrator  under separate cover.  The Clearing
Agency  Participant  should in turn make the request of the Clearing Agency (or,
in the case of a Clearing  Agency  Indirect  Participant,  such Clearing  Agency
Indirect Participant must notify the related Clearing Agency Participant of such
request,  which  Clearing  Agency  Participant  should  make the  request of the
Clearing  Agency) in the manner  required under the rules and regulations of the
Clearing  Agency's APUT System and provided to the Clearing Agency  Participant.
Upon receipt of such request,  the Clearing Agency will date and time stamp such
request and forward such request to the Trust Administrator. The Clearing Agency
may  establish  such  procedures as it deems fair and equitable to establish the
order of receipt of requests for such  distributions  received by it on the same
day. Neither the Master Servicer nor the Trust Administrator shall be liable for
any delay in delivery of  requests  for  distributions  or  withdrawals  of such
requests by the Clearing Agency,  a Clearing Agency  Participant or any Clearing
Agency Indirect Participant.

            The Trust  Administrator  shall  maintain  a list of those  Clearing
Agency Participants representing the appropriate Beneficial Owners of Class A-12
Certificates that have submitted  requests for distributions in reduction of the
principal  balance of  Certificates  of such Class,  together  with the order of
receipt  and the  amounts  of such  requests.  The  Clearing  Agency  will honor
requests  for  distributions  in the  order of  their  receipt  (subject  to the
priorities  described in Section 4.07(a) above). The Trust  Administrator  shall
notify the Clearing Agency and the appropriate  Clearing Agency  Participants as
to which requests should be honored on each Distribution Date. Requests shall be
honored by the Clearing Agency in accordance with the procedures, and subject to
the  priorities  and  limitations,  described  in this Section  4.07.  The exact
procedures to be followed by the Trust Administrator and the Clearing Agency for
purposes  of  determining   such  priorities  and  limitations   will  be  those
established from time to time by the Trust Administrator or the Clearing Agency,
as the case may be. The  decisions of the Trust  Administrator  and the Clearing
Agency  concerning  such  matters  will be final  and  binding  on all  affected
persons.

            Individual  Class A-12  Certificates  which have been accepted for a
distribution shall be due and payable on the applicable  Distribution Date. Such
Certificates  shall  cease to bear  interest  after  the  last day of the  month
preceding the month in which such Distribution Date occurs, and  notwithstanding
anything to the contrary herein, no amounts shall be due from Financial Security
or otherwise with respect to interest on such  Certificates  after such last day
of the month.

            Any Beneficial Owner of a Class A-12 Certificate which has requested
a distribution  may withdraw its request by so notifying in writing the Clearing
Agency  Participant or Clearing Agency Indirect  Participant that maintains such
Beneficial  Owner's  account.  In the event that such account is maintained by a
Clearing Agency Indirect Participant,  such Clearing Agency Indirect Participant
must notify the related Clearing Agency  Participant  which in turn must forward
the withdrawal of such request,  on a form required by the Clearing  Agency,  to
the  Trust  Administrator.  If  such  notice  of  withdrawal  of a  request  for
distribution  has not been received by the Clearing  Agency and forwarded to the
Trust Administrator on or before the Record Date for the next Distribution Date,
the previously made request for distribution will be irrevocable with respect to
the making of distributions in reduction of the Principal  Balance of Class A-12
Certificates on such Distribution Date.

            In the event any  requests  for  distributions  in  reduction of the
principal  balance  of  Class  A-12  Certificates  are  rejected  by  the  Trust
Administrator  for failure to comply with the requirements of this Section 4.07,
the Trust  Administrator  shall return such request to the appropriate  Clearing
Agency  Participant with a copy to the Clearing Agency with an explanation as to
the reason for such rejection.

            (d)   To the extent, if any, that  distributions in reduction of the
Principal  Balance of Class A-12  Certificates on a Distribution Date exceed the
outstanding  principal  balances of  Certificates  of such Class with respect to
which  distribution  requests have been received by the related  Record Date, as
provided in Section 4.07(a) above,  distributions  in reduction of the Principal
Balance of the Class A-12 Certificates  will be made by mandatory  distributions
in reduction  thereof.  Such mandatory  distributions  on Individual  Class A-12
Certificates  will be made by random lot in accordance with the  then-applicable
random lot procedures of the Clearing Agency,  the Clearing Agency  Participants
and the  Clearing  Agency  Indirect  Participants  representing  the  Beneficial
Owners;  provided  however,  that, if after the distribution in reduction of the
Principal  Balance  of  the  Class  A-12  Certificates  on the  next  succeeding
Distribution Date on which mandatory distributions are to be made, the principal
balance of Class A-12 Certificates  would not be reduced to zero, the Individual
Class A-12  Certificates  to which such  distributions  will be applied shall be
selected by the Clearing Agency from those Class A-12 Certificates not otherwise
receiving   distributions  in  reduction  of  the  principal   balance  on  such
Distribution Date. The Trust  Administrator  shall notify the Clearing Agency of
the aggregate amount of the mandatory distribution in reduction of the Principal
Balance of the Class A-12 Certificates to be made on the next Distribution Date.
The Clearing Agency shall then allocate such aggregate amount among its Clearing
Agency Participants on a random lot basis. Each Clearing Agency Participant and,
in turn,  each  Clearing  Agency  Indirect  Participant  will  then  select,  in
accordance   with  its  own  random  lot  procedures,   Individual   Class  A-12
Certificates  from  among  those  held  in its  accounts  to  receive  mandatory
distributions in reduction of the principal  balance of the Certificates of such
Class,  such that the total amount so selected is equal to the aggregate  amount
of such mandatory distributions allocated to such Clearing Agency Participant by
the Clearing  Agency and to such Clearing  Agency  Indirect  Participant  by its
related  Clearing  Agency  Participant,  as the  case  may be.  Clearing  Agency
Participants  and Clearing  Agency Indirect  Participants  which hold Class A-12
Certificates selected for mandatory  distributions in reduction of the principal
balances are required to provide notice of such mandatory  distributions  to the
affected  Beneficial  Owners.  The  Master  Servicer  agrees to notify the Trust
Administrator  of the amount of  distributions  in  reduction  of the  principal
balances of Class A-12  Certificates to be made on each  Distribution  Date in a
timely  manner such that the Trust  Administrator  may  fulfill its  obligations
pursuant to the Letter of  Representations  dated the Business  Day  immediately
preceding  the Closing Date among the Seller,  the Trust  Administrator  and the
Clearing Agency.

            (e)   On the Closing Date, the Rounding Account shall be established
with  the  Trust  Administrator  and the  Seller  shall  cause  to be  initially
deposited  with the Trust  Administrator  a  $999.99  deposit  for the  Rounding
Account.  On each Distribution Date on which a distribution is made in reduction
of the principal balance of the Class A-12 Certificates, funds on deposit in the
Rounding Account shall be available to be applied to round upward to an integral
multiple of $1,000 the  aggregate  distribution  in reduction  of the  Principal
Balance to be made on the Class A-12 Certificates. Rounding of such distribution
on the  Class  A-12  Certificates  shall  be  accomplished,  on the  first  such
Distribution Date, by withdrawing from the Rounding Account the amount of funds,
if any, needed to round the amount otherwise  available for such distribution in
reduction of the principal balance of the Class A-12 Certificates  upward to the
next integral multiple of $1,000. On each succeeding  Distribution Date on which
distributions  in  reduction  of  the  principal   balance  of  the  Class  A-12
Certificates  are  to be  made,  the  aggregate  amount  of  such  distributions
allocable  to the Class A-12  Certificates  shall be applied  first to repay any
funds  withdrawn from the Rounding  Account on the prior  Distribution  Date for
which funds were  withdrawn  from such  account,  and then the remainder of such
allocable  amount,  if any,  shall be  similarly  rounded  upward and applied as
distributions  in  reduction  of  the  principal   balance  of  the  Class  A-12
Certificates; this process shall continue on succeeding Distribution Dates until
the Principal  Balance of the Class A-12  Certificates has been reduced to zero.
The  funds  in the  Rounding  Account  shall be held in a  non-interest  bearing
account and shall not be reinvested.

            Notwithstanding anything herein to the contrary, on the Distribution
Date on which  distributions in reduction of the Principal  Balance of the Class
A-12  Certificates  will reduce the Principal  Balance thereof to zero or in the
event that distributions in reduction of the Principal Balance of the Class A-12
Certificates  are made in accordance  with the  provisions  set forth in Section
4.07(f),  an amount equal to the difference between $1,000 and the sum then held
in the Rounding Account shall be paid from the Pool  Distribution  Amount to the
Rounding  Account.  Any funds then on deposit in such Rounding  Account shall be
distributed to the Holder of the Class A-LR Certificate.

            (f)   Notwithstanding any provisions herein to the contrary, on each
Distribution  Date on and after Financial  Security's  failure to make a payment
with respect to a Class A-12 Distribution Deficiency, distributions in reduction
of the Principal Balance of the Class A-12 Certificates  (including amounts paid
in respect of such  losses  under the  Policy)  will be made on a pro rata basis
among  the  Holders  of the  Class  A-12  Certificates  and  will not be made in
integral multiples of $1,000 or pursuant to requested distributions or mandatory
distributions by random lot.

            (g)   In the  event  that the pro rata  distributions  described  in
Section  4.07(f) cannot be made through the  facilities of the Clearing  Agency,
the  Class  A-12  Certificates  will be  withdrawn  from the  facilities  of the
Clearing  Agency and  Definitive  Certificates  will be issued to  replace  such
withdrawn Book-Entry Certificates pursuant to Section 5.07. An amendment to this
Agreement,  which may be approved without the consent of any Certificateholders,
shall   establish   procedures   relating  to  the  manner  in  which  pro  rata
distributions  in  reduction  of  the  principal  balances  of  the  Class  A-12
Certificates are to be made;  provided that such procedures shall be consistent,
to the extent  practicable and customary for  certificates  similar to the Class
A-12 Certificates, with the provisions of this Section 4.07.

            Section 4.08      Policy Matters.

            (a)   If, on the second Business Day before any  Distribution  Date,
the Trust Administrator  determines that there will be a Class A-12 Distribution
Deficiency for such Distribution Date, the Trust  Administrator  shall determine
the amount of such Class A-12  Distribution  Deficiency and shall give notice to
Financial  Security by  telephone  or telecopy of the amount of such  deficiency
confirmed in writing by the Notice of  Nonpayment  by 12:00 noon,  New York City
time on such second Business Day.

            (b)   At the time of the execution  and delivery of this  Agreement,
the Trust Administrator shall establish a separate special purpose trust account
in the name of the Trust  Administrator  for the benefit of Holders of the Class
A-12 Certificates referred to herein as the "Policy Payments Account" over which
the  Trust  Administrator  shall  have  exclusive  control  and  sole  right  of
withdrawal.  The Trust  Administrator  shall  deposit any amounts paid under the
Policy into the Policy  Payments  Account and  distribute  such amounts only for
purposes of payment to Holders of the Class A-12  Certificates of the Class A-12
Distribution  Deficiency  for which a claim was made and such amounts may not be
applied to satisfy any costs, expenses or liabilities of the Trust Administrator
or the Trust  Estate.  Amounts  paid under the Policy  shall be disbursed by the
Trust Administrator to Holders of the Class A-12 Certificates in the same manner
as  distributions  in reduction of the principal  balance of and interest on the
Certificates  of such  Class are made  under  Section  4.01(f).  It shall not be
necessary for such payments of the Class A-12 Distribution Deficiency to be made
by checks or wire transfers separate from the check or wire transfer used to pay
distributions in reduction of the principal balance of and interest on the Class
A-12 Certificates with funds available to make such distributions.  However, the
amount of any  distribution  to be paid from funds  transferred  from the Policy
Payments Account shall be noted as provided in (c) below and in the statement to
be furnished to Holders of the Class A-12  Certificates  and Financial  Security
pursuant to Section 4.04. Funds held in the Policy Payments Account shall not be
invested by the Trust Administrator.

            On any Distribution Date with respect to which a claim has been made
under the Policy, the amount of any funds received by the Trust Administrator as
a  result  of the  claim  under  the  Policy  to the  extent  necessary  to make
distributions  on  the  Class  A-12   Certificates   equal  to  the  Class  A-12
Distribution  Deficiency on such  Distribution  Date shall be withdrawn from the
Policy Payments Account and applied by the Trust Administrator to the payment in
full of the Class A-12  Distribution  Deficiency.  Any funds  deposited into the
Policy  Payments  Account in respect  of the Class  A-12  Certificates  that are
remaining  therein on the first Business Day following a Distribution Date after
the Class A-12 Distribution  Deficiency has been made to the  Certificateholders
of such Class shall be  remitted in  immediately  available  funds to  Financial
Security, pursuant to the instructions of Financial Security, by the end of such
Business Day.

            (c)   The Trust  Administrator  shall keep a complete  and  accurate
record of the Class A-12 Interest  Loss Amount,  the Class A-12  Principal  Loss
Amount and any  Non-Supported  Interest  Shortfall  allocated  to the Class A-12
Certificates once the Reserve Fund has been depleted,  paid from moneys received
under the  Policy.  Financial  Security  shall  have the right to  inspect  such
records at  reasonable  times upon one Business  Day's prior notice to the Trust
Administrator.

            (d)   In the  event  that the Trust  Administrator  has  received  a
certified copy of an order of the appropriate  court that any  distributions  in
reduction of the  principal  balance of or interest on a Class A-12  Certificate
has been avoided in whole or in part as a preference  payment  under  applicable
bankruptcy law, the Trust  Administrator  shall so notify Financial Security and
shall comply with the provisions of the  applicable  Policy to obtain payment by
Financial  Security  of such  avoided  distribution,  and shall,  at the time it
provides  notice  to  Financial  Security,  notify,  by mail to  Holders  of the
Certificates of such Class that, in the event that any Holder's  distribution is
so recovered,  such Holder will be entitled to payment  pursuant to the terms of
the  applicable  Policy,  a copy of which shall be made  available  by the Trust
Administrator and the Trust  Administrator  shall furnish to Financial  Security
its records  evidencing the  distributions in reduction of the principal balance
of and interest  (including any Non-Supported  Interest  Shortfall  described in
Section 4.08(c)) on the Class A-12 Certificates, if any, which have been made by
the Trust Administrator and subsequently  recovered from Holders,  and the dates
on which such  distributions were made. Such payment under the applicable Policy
shall be disbursed to the receiver,  conservator,  debtor-in-possession or Trust
Administrator   in  bankruptcy   named  in  the  order  and  not  to  the  Trust
Administrator  or  any  Class  A-12  Certificateholder   directly  (unless  such
Certificateholder has previously paid such amount to the receiver,  conservator,
debtor-in-possession or Trust Administrator in bankruptcy named in the order, in
which  case such  payment  shall be  disbursed  to the Trust  Administrator  for
distribution  to such  Certificateholder  upon proof of such payment  reasonably
satisfactory to Financial Security).

            (e)   The  Trust   Administrator  shall  promptly  notify  Financial
Security  of  any  proceeding  or the  institution  of any  action  seeking  the
avoidance as a preferential  transfer under applicable  bankruptcy,  insolvency,
receivership or similar law (a "Preference Claim") of any distribution made with
respect to the Class A-12 Certificates as to which it has actual knowledge. Each
Holder of a Class A-12 Certificate, by its purchase of such Certificates and the
Trust  Administrator  hereby  agree  that  Financial  Security  (so  long  as no
Financial  Security  Default exists) may at any time during the  continuation of
any  proceeding  relating to a Preference  Claim direct all matters  relating to
such Preference Claim, including,  without limitation,  (i) the direction of any
appeal of any order relating to any Preference Claim and (ii) the posting of any
surety, supersedeas or performance bond pending any such appeal. In addition and
without  limitation of the foregoing,  Financial Security shall be subrogated to
the  rights of the Trust  Administrator  and each  Holder in the  conduct of any
Preference Claim, including,  without limitation,  all rights of any party to an
adversary  proceeding  or  action  with  respect  to any court  order  issued in
connection with any such Preference Claim.

            (f)   The Trust  Administrator  acknowledges,  and each  Holder of a
Class A-12  Certificate  by its  acceptance  of such  Certificate  agrees,  that
without any further action on the part of Financial Security, Financial Security
shall be  subrogated  to all of the  rights  to  amounts  distributable  to such
Certificateholders   in   respect  of  Class  A  Unpaid   Interest   Shortfalls,
Non-Supported Interest Shortfalls allocated to such Certificates and recoveries,
if any,  with respect to the Class A-12  Principal  Loss Amounts with respect to
amounts paid under the Policy. The Class A-12  Certificateholders  by acceptance
of such  Certificates  assign  their rights as Holders of such  Certificates  to
Financial Security to the extent of Financial  Security's  interest with respect
to amounts paid.

            (g)   The Master  Servicer  shall  designate  a  Financial  Security
Contact  Person  who  shall  be  available  to  Financial  Security  to  provide
reasonable  access to  information  regarding  the Mortgage  Loans.  The initial
Financial Security Contact Person is appointed in Section 11.27.

            (h)   The  Trust   Administrator   shall  surrender  the  Policy  to
Financial  Security  for  cancellation  upon the  expiration  of the term of the
Policy as provided in the Policy.

            (i)   The Trust  Administrator upon receipt from the Master Servicer
shall send to Financial  Security the report  prepared  pursuant to Section 3.05
and the statements prepared pursuant to Section 4.04.

            Section 4.09      Calculation   of   Amounts;   Binding   Effect  of
Interpretations and Actions of Master Servicer.

            The Master Servicer will compute the amount of all  distributions to
be made on the Certificates and all losses to be allocated to the  Certificates.
In  the  event  that  the  Master  Servicer  concludes  that  any  ambiguity  or
uncertainty exists in any provisions of this Agreement relating to distributions
to be made on the Certificates or the allocation of losses to the  Certificates,
the  interpretation  of such  provisions  and any  actions  taken by the  Master
Servicer in good faith to implement  such  interpretation  shall be binding upon
Certificateholders.

            Section 4.10      Determination of LIBOR.

            On each  Rate  Determination  Date,  the Trust  Administrator  shall
determine  LIBOR for the  Distribution  Date occurring in the second  succeeding
month  on the  basis  of the  British  Bankers'  Association  ("BBA")  "Interest
Settlement  Rate" for  one-month  deposits in U.S.  dollars as found on Telerate
page 3750 as of 11:00 A.M. London time on such Rate Determination  Date. As used
herein,  "Telerate  page 3750" means the display  designated as page 3750 on the
Dow Jones Telerate Service.

            If on any Rate Determination Date the Trust  Administrator is unable
to  determine  LIBOR  on the  basis of the  method  set  forth in the  preceding
paragraph LIBOR for the Distribution Date in the second succeeding month will be
whichever  is  higher  of  (x)  LIBOR  as   determined   on  the  previous  Rate
Determination Date or (y) the Reserve Interest Rate. The "Reserve Interest Rate"
will be the rate per annum which the Trust Administrator determines to be either
(A) the arithmetic  mean (rounding such  arithmetic mean upwards if necessary to
the nearest whole multiple of 1/16%) of the one-month  Eurodollar  lending rates
that the Reference Banks are quoting,  on the relevant Rate Determination  Date,
to the  principal  London  offices of at least two  leading  banks in the London
interbank market or (b) in the event that the Trust  Administrator can determine
no such arithmetic mean, the lowest one-month  Eurodollar  lending rate that the
Reference Banks are quoting on such Rate  Determination Date to leading European
banks.

            If on  any  Rate  Determination  Date  the  Trust  Administrator  is
required  but is unable to  determine  the Reserve  Interest  Rate in the manner
provided in the  preceding  paragraph,  LIBOR for the  Distribution  Date in the
second  succeeding  month  will be  LIBOR as  determined  on the  previous  Rate
Determination Date, or, in the case of the first Rate Determination Date, 4.900%
for the Class A-6 and Class A-7  Certificates  and 4.918% for the Class A-14 and
Class A-15 Certificates.

            The establishment of LIBOR by the Trust  Administrator and the Trust
Administrator's  subsequent  calculation of the rates of interest  applicable to
each of the LIBOR  Certificates in the absence of manifest error,  will be final
and binding.  After a Rate  Determination  Date, the Trust  Administrator  shall
provide  the  Pass-Through  Rates  of the  LIBOR  Certificates  for the  related
Distribution  Date to  Beneficial  Owners or Holders of LIBOR  Certificates  who
place a telephone call to the Trust  Administrator  at (704) 383-5272 and make a
request therefor.


<PAGE>






                                    ARTICLE V

                                THE CERTIFICATES

            Section 5.01      The Certificates.

            (a)   The Class A and Class B  Certificates  shall be issued only in
minimum  Denominations  of a Single  Certificate and, except for the Class A-21,
Class A-PO, Class A-R, Class A-LR Certificates,  integral multiples of $1,000 in
excess thereof (except,  if necessary,  for one Certificate of each Class (other
than the Class A-21,  Class A-R,  Class A-LR and Class A-PO  Certificates)  that
evidences one Single  Certificate plus such additional  principal  portion as is
required  in order for all  Certificates  of such  Class to equal the  aggregate
Original  Principal  Balance of such  Class,  as the case may be),  and shall be
substantially  in the respective forms set forth as Exhibits A-1, A-2, A-3, A-4,
A-5, A-6, A-7, A-8, A-9, A-10,  A-11,  A-12, A-13, A-14, A-15, A-16, A-17, A-18,
A-19,  A-20,  A-21,  A-22,  A-PO, A-R, A-LR, B-1, B-2, B-3, B-4, B-5, B-6, and C
(reverse side of Certificates)  hereto. On original issue the Certificates shall
be executed and delivered by the Trust Administrator to or upon the order of the
Seller upon receipt by the Trust Administrator or the Custodian of the documents
specified in Section 2.01. The aggregate  principal portion (or notional amount)
evidenced  by the  Class A and  Class  B  Certificates  shall  be the sum of the
amounts specifically set forth in the respective Certificates.  The Certificates
shall be  executed  by  manual  or  facsimile  signature  on behalf of the Trust
Administrator  by any  Responsible  Officer  thereof.  Certificates  bearing the
manual or facsimile  signatures of  individuals  who were at any time the proper
officers  of  the  Trust   Administrator  shall  bind  the  Trust  Administrator
notwithstanding  that such  individuals  or any of them have ceased to hold such
offices prior to the authentication and delivery of such Certificates or did not
hold such  offices at the date of such  Certificates.  No  Certificate  shall be
entitled  to any  benefit  under this  Agreement,  or be valid for any  purpose,
unless   manually   countersigned   by  a  Responsible   Officer  of  the  Trust
Administrator,  or unless there appears on such  Certificate  a  certificate  of
authentication  executed by the  Authenticating  Agent by manual signature,  and
such  countersignature  or  certificate  upon a Certificate  shall be conclusive
evidence,   and  the  only  evidence,   that  such  Certificate  has  been  duly
authenticated and delivered hereunder.  All Certificates shall be dated the date
of their authentication.

            Until such time as Definitive  Certificates  are issued  pursuant to
Section 5.07, each Book-Entry Certificate shall bear the following legend:

            "Unless   this   certificate   is   presented   by   an   authorized
representative  of  [the  Clearing  Agency]  to  the  Seller  or its  agent  for
registration of transfer,  exchange or payment,  and any  certificate  issued is
registered in the name of [the Clearing  Agency] or such other name as requested
by an authorized representative of [the Clearing Agency] and any payment is made
to [the Clearing Agency], any transfer,  pledge or other use hereof for value or
otherwise by or to any person is wrongful  since the  registered  owner  hereof,
[the Clearing Agency], has an interest herein."

            (b)   Upon original issuance,  the Book-Entry  Certificates shall be
issued in the form of one or more typewritten  certificates,  to be delivered to
The Depository Trust Company,  the initial Clearing Agency, by, or on behalf of,
the Seller.  Such Certificates  shall initially be registered in the Certificate
Register  in the name of the  nominee of the  initial  Clearing  Agency,  and no
Beneficial  Owner  will  receive  a  definitive  certificate  representing  such
Beneficial Owner's interest in the Book-Entry  Certificates,  except as provided
in Section 5.07.  Unless and until  definitive,  fully  registered  certificates
("Definitive  Certificates")  have been issued to Beneficial  Owners pursuant to
Section 5.07:

               (i)     the  provisions of this Section  5.01(b) shall be in full
      force and effect;

               (ii)    the  Seller,   the  Master   Servicer,   the  Certificate
      Registrar and the Trust  Administrator  may deal with the Clearing  Agency
      for all purposes  (including the making of distributions on the Book-Entry
      Certificates  and the  taking of  actions  by the  Holders  of  Book-Entry
      Certificates) as the authorized representative of the Beneficial Owners;

               (iii)   to the extent that the provisions of this Section 5.01(b)
      conflict with any other  provisions of this  Agreement,  the provisions of
      this Section 5.01(b) shall control;

               (iv)    the rights of Beneficial  Owners shall be exercised  only
      through the Clearing  Agency and shall be limited to those  established by
      law, the rules,  regulations  and  procedures  of the Clearing  Agency and
      agreements  between such Beneficial  Owners and the Clearing Agency and/or
      the Clearing Agency Participants,  and all references in this Agreement to
      actions  by  Certificateholders  shall,  with  respect  to the  Book-Entry
      Certificates,   refer  to  actions  taken  by  the  Clearing  Agency  upon
      instructions from the Clearing Agency Participants,  and all references in
      this  Agreement  to  distributions,  notices,  reports and  statements  to
      Certificateholders  shall,  with respect to the  Book-Entry  Certificates,
      refer to  distributions,  notices,  reports and statements to the Clearing
      Agency  or  its  nominee,   as   registered   holder  of  the   Book-Entry
      Certificates, as the case may be, for distribution to Beneficial Owners in
      accordance with the procedures of the Clearing Agency; and

               (v)     the  initial   Clearing   Agency  will  make   book-entry
      transfers among the Clearing Agency  Participants and receive and transmit
      distributions  of  principal  and  interest  on  the  Certificates  to the
      Clearing  Agency  Participants,  for  distribution by such Clearing Agency
      Participants to the Beneficial Owners or their nominees.

            For  purposes  of any  provision  of  this  Agreement  requiring  or
permitting  actions  with the consent  of, or at the  direction  of,  Holders of
Book-Entry Certificates evidencing specified Voting Interests, such direction or
consent  shall  be  given by  Beneficial  Owners  having  the  requisite  Voting
Interests, acting through the Clearing Agency.

            Unless  and  until  Definitive  Certificates  have  been  issued  to
Beneficial  Owners pursuant to Section 5.07, copies of the reports or statements
referred to in Section 4.04 shall be available to Beneficial Owners upon written
request to the Trust Administrator at the Corporate Trust Office.

            Section 5.02      Registration of Certificates.

            (a)   The Trust  Administrator  shall cause to be kept at one of the
offices or  agencies to be  maintained  in  accordance  with the  provisions  of
Section  5.06 a  Certificate  Register  in  which,  subject  to such  reasonable
regulations as it may prescribe,  the Trust  Administrator shall provide for the
registration of  Certificates  and of transfers and exchanges of Certificates as
herein  provided.  The Trust  Administrator  shall act as, or shall  appoint,  a
Certificate Registrar for the purpose of registering  Certificates and transfers
and exchanges of Certificates as herein provided.

            Upon surrender for  registration  of transfer of any  Certificate at
any office or agency  maintained for such purpose  pursuant to Section 5.06 (and
subject to the  provisions of this Section 5.02) the Trust  Administrator  shall
execute,  and shall date,  authenticate  (or cause the  Authenticating  Agent to
authenticate)  and  deliver,  in  the  name  of  the  designated  transferee  or
transferees,  one or more new Certificates of a like aggregate principal portion
or Percentage Interest and of the same Class.

            At  the  option  of  the  Certificateholders,  Certificates  may  be
exchanged for other Certificates of authorized Denominations of a like aggregate
principal portion or Percentage Interest and of the same Class upon surrender of
the  Certificates  to be  exchanged  at any such office or agency.  Whenever any
Certificates  are so surrendered  for exchange,  the Trust  Administrator  shall
execute,  and shall date,  authenticate  (or cause the  Authenticating  Agent to
authenticate) and deliver, the Certificates which the  Certificateholder  making
the exchange is entitled to receive.  Every Certificate presented or surrendered
for transfer or exchange shall (if so required by the  Certificate  Registrar or
the Trust  Administrator)  be duly endorsed by, or be  accompanied  by a written
instrument of transfer in form satisfactory to the Certificate  Registrar,  duly
executed by the Holder thereof or his attorney duly authorized in writing.

            No service  charge  shall be made for any  transfer  or  exchange of
Certificates,  but the Trust  Administrator  or the  Certificate  Registrar  may
require payment of a sum sufficient to cover any tax or governmental charge that
may be imposed in connection with any transfer or exchange of Certificates.

            All  Certificates  surrendered  for transfer  and exchange  shall be
canceled  by  the  Certificate   Registrar,   the  Trust  Administrator  or  the
Authenticating Agent in accordance with their standard procedures.

            (b)   No transfer of a Class A-PO, Class B-4, Class B-5 or Class B-6
Certificate shall be made unless the registration requirements of the Securities
Act of 1933, as amended,  and any applicable  State securities laws are complied
with, or such transfer is exempt from the registration  requirements  under said
Act and laws.  In the event that a transfer  is to be made in  reliance  upon an
exemption from said Act or laws, (i) unless such transfer is made in reliance on
Rule 144A, the Trust  Administrator or the Seller may, if such transfer is to be
made within  three years after the later of (i) the date of the initial  sale of
Certificates or (ii) the last date on which the Seller or any affiliate  thereof
was a Holder of the  Certificates  proposed to be  transferred,  require a Class
A-PO, Class B-4, Class B-5 or Class B-6  Certificateholder  to deliver a written
Opinion of Counsel  acceptable to and in form and substance  satisfactory to the
Trust Administrator and the Seller, to the effect that such transfer may be made
pursuant to an  exemption,  describing  the  applicable  exemption and the basis
therefor, from said Act and laws or is being made pursuant to said Act and laws,
which Opinion of Counsel shall not be an expense of the Trust Administrator, the
Trustee,  the Seller or the Master  Servicer,  and (ii) the Trust  Administrator
shall  require  the  transferee  (other than an  affiliate  of the Seller on the
Closing  Date) to execute an  investment  letter in the form of Exhibit J hereto
certifying to the Seller and the Trust  Administrator the facts surrounding such
transfer,  which  investment  letter  shall  not  be an  expense  of  the  Trust
Administrator,  the Trustee, the Seller or the Master Servicer.  The Holder of a
Class A-PO,  Class B-4,  Class B-5 or Class B-6  Certificate  desiring to effect
such   transfer   shall,   and  does  hereby  agree  to,   indemnify  the  Trust
Administrator, the Trustee, the Seller, the Master Servicer and any Paying Agent
acting on behalf of the  Trustee  against any  liability  that may result if the
transfer  is not so exempt or is not made in  accordance  with such  federal and
state  laws.  Neither  the  Seller  nor the  Trust  Administrator  is  under  an
obligation  to  register  the  Class  A-PO,  Class  B-4,  Class B-5 or Class B-6
Certificates under said Act or any other securities law.

            (c)   No transfer of a Class A-9, Class A-22,  Class A-PO or Class B
Certificate   shall  be  made  (other  than  the  transfer  of  the  Class  A-PO
Certificates to an affiliate of the Seller on the Closing Date) unless the Trust
Administrator  and the Seller shall have  received (i) a  representation  letter
from the  transferee  in the form of  Exhibit J  hereto,  in the case of a Class
A-PO, Class B-4, Class B-5 or Class B-6 Certificate, or in the form of Exhibit K
hereto,  in the case of a Class A-9,  Class A-22,  Class B-1, Class B-2 or Class
B-3  Certificate,  to the  effect  that  either  (a) such  transferee  is not an
employee  benefit  plan or other  retirement  arrangement  subject to Title I of
ERISA or Code Section 4975, or a governmental  plan, as defined in Section 3(32)
of ERISA, subject to any federal, state or local law ("Similar Law") which is to
a material  extent  similar  to the  foregoing  provisions  of ERISA or the Code
(collectively,  a "Plan")  and is not a person  acting on behalf of or using the
assets of any such Plan, which representation  letter shall not be an expense of
the Trust  Administrator,  the Trustee, the Seller or the Master Servicer or (b)
with respect to the Class A-9, Class A-22 or Class B Certificates  only, if such
transferee is an insurance company, (A) the source of funds used to purchase the
Class A-9,  Class A-22 or Class B Certificate is an "insurance  company  general
account"  (as such term is  defined in Section  V(e) of  Prohibited  Transaction
Class  Exemption 95-60 ("PTE 95-60"),  60 Fed. Reg. 35925 (July 12, 1995)),  (B)
there is no Plan with  respect  to which the  amount of such  general  account's
reserves and liabilities  for the contract(s)  held by or on behalf of such Plan
and all other Plans  maintained by the same  employer (or  affiliate  thereof as
defined in Section  V(a)(1) of PTE 95-60) or by the same  employee  organization
exceeds 10% of the total of all reserves and liabilities of such general account
(as such amounts are determined  under Section I(a) of PTE 95-60) at the date of
acquisition  and (C) the purchase  and holding of such Class A-9,  Class A-22 or
Class B  Certificates  are covered by Sections I and III of PTE 95-60 or (ii) in
the case of any such Class A-9,  Class A-22,  Class A-PO or Class B  Certificate
presented for registration in the name of a Plan, or a trustee of any such Plan,
(A) an Opinion of Counsel satisfactory to the Trust Administrator and the Seller
to the effect that the purchase or holding of such Class A-9, Class A-22,  Class
A-PO or Class B  Certificate  will not result in the assets of the Trust  Estate
being  deemed to be "plan  assets"  and  subject to the  prohibited  transaction
provisions  of ERISA,  the Code or Similar  Law and will not  subject  the Trust
Administrator,  the Trustee, the Seller or the Master Servicer to any obligation
in addition to those  undertaken  in this  Agreement,  which  Opinion of Counsel
shall not be an expense of the Trust  Administrator,  the Trustee, the Seller or
the  Master  Servicer  and  (B)  such  other  opinions  of  counsel,   officer's
certificates  and agreements as the Seller or the Master Servicer may require in
connection with such transfer, which opinions of counsel, officers' certificates
and agreements shall not be an expense of the Trust Administrator,  the Trustee,
the Seller or the Master  Servicer.  The Class A-9,  Class A-22,  Class A-PO and
Class B Certificates shall bear a legend referring to the foregoing restrictions
contained in this paragraph.

            (d)   No legal or  beneficial  interest in all or any portion of the
Class A-R or Class A-LR Certificate may be transferred directly or indirectly to
a "disqualified  organization"  within the meaning of Code Section 860E(e)(5) or
an agent  of a  disqualified  organization  (including  a  broker,  nominee,  or
middleman), to a Plan or a Person acting on behalf of or investing the assets of
a Plan (such Plan or Person, an "ERISA Prohibited  Holder") or to an individual,
corporation,  partnership  or other person unless such  transferee  (i) is not a
Non-U.S.  Person or (ii) is a Non-U.S.  Person that holds the Class A-R or Class
A-LR  Certificate in connection  with the conduct of a trade or business  within
the United States and has furnished the transferor  and the Trust  Administrator
with an  effective  Internal  Revenue  Service  Form 4224 or (iii) is a Non-U.S.
Person that has delivered to both the transferor and the Trust  Administrator an
opinion of a nationally  recognized  tax counsel to the effect that the transfer
of the Class  A-R or Class  A-LR  Certificate  to it is in  accordance  with the
requirements  of the Code and the  regulations  promulgated  thereunder and that
such transfer of the Class A-R or Class A-LR Certificate will not be disregarded
for federal  income tax purposes  (any such person who is not covered by clauses
(i), (ii) or (iii) above being  referred to herein as a  "Non-permitted  Foreign
Holder"),  and any such purported transfer shall be void and have no effect. The
Trust Administrator shall not execute,  and shall not authenticate (or cause the
Authenticating Agent to authenticate) and deliver, a new Class A-R or Class A-LR
Certificate in connection with any such transfer to a disqualified  organization
or agent thereof (including a broker, nominee or middleman), an ERISA Prohibited
Holder or a Non-permitted  Foreign Holder, and neither the Certificate Registrar
nor  the  Trust   Administrator   shall  accept  a  surrender  for  transfer  or
registration  of  transfer,  or register the transfer of, the Class A-R or Class
A-LR  Certificate,  unless  the  transferor  shall  have  provided  to the Trust
Administrator  an  affidavit,  substantially  in the form  attached as Exhibit H
hereto, signed by the transferee,  to the effect that the transferee is not such
a  disqualified  organization,   an  agent  (including  a  broker,  nominee,  or
middleman)  for any  entity  as to  which  the  transferee  has not  received  a
substantially  similar affidavit,  an ERISA Prohibited Holder or a Non-permitted
Foreign  Holder,  which affidavit shall contain the consent of the transferee to
any such  amendments of this Agreement as may be required to further  effectuate
the  foregoing  restrictions  on  transfer  of  the  Class  A-R  or  Class  A-LR
Certificate  to  disqualified   organizations,   ERISA  Prohibited   Holders  or
Non-permitted  Foreign Holders.  Such affidavit shall also contain the statement
of the transferee  that (i) the transferee  has  historically  paid its debts as
they have  come due and  intends  to do so in the  future,  (ii) the  transferee
understands  that it may incur  liabilities in excess of cash flows generated by
the residual interest, (iii) the transferee intends to pay taxes associated with
holding the residual  interest as they become due and (iv) the  transferee  will
not transfer the Class A-R or Class A-LR  Certificate to any Person who does not
provide an affidavit substantially in the form attached as Exhibit H hereto.

            The affidavit described in the preceding paragraph,  if not executed
in  connection  with  the  initial  issuance  of the  Class  A-R or  Class  A-LR
Certificate, shall be accompanied by a written statement in the form attached as
Exhibit I hereto, signed by the transferor, to the effect that as of the time of
the transfer,  the transferor  has no actual  knowledge that the transferee is a
disqualified  organization,  ERISA Prohibited  Holder or  Non-permitted  Foreign
Holder,  and has no knowledge or reason to know that the statements  made by the
transferee  with  respect to clauses  (i) and (iii) of the last  sentence of the
preceding  paragraph  are not true.  The Class A-R and Class  A-LR  Certificates
shall bear a legend  referring to the foregoing  restrictions  contained in this
paragraph and the preceding paragraph.

            Upon  notice to the  Master  Servicer  that any legal or  beneficial
interest  in any  portion  of the Class A-R or Class A-LR  Certificate  has been
transferred,  directly or indirectly,  to a disqualified  organization  or agent
thereof  (including a broker,  nominee,  or middleman) in  contravention  of the
foregoing  restrictions,  (i) such transferee  shall be deemed to hold the Class
A-R or Class A-LR Certificate in constructive  trust for the last transferor who
was not a disqualified  organization or agent thereof, and such transferor shall
be  restored  as the  owner of such  Class  A-R or  Class  A-LR  Certificate  as
completely  as if such  transfer had never  occurred,  provided  that the Master
Servicer  may, but is not required to,  recover any  distributions  made to such
transferee with respect to the Class A-R or Class A-LR Certificate, and (ii) the
Master  Servicer  agrees to furnish to the Internal  Revenue  Service and to any
transferor of the Class A-R or Class A-LR  Certificate  or such agent (within 60
days of the  request  therefor  by the  transferor  or agent)  such  information
necessary to the  application of Code Section  860E(e) as may be required by the
Code,  including but not limited to the present  value of the total  anticipated
excess  inclusions  with respect to the Class A-R or Class A-LR  Certificate (or
portion thereof) for periods after such transfer.  At the election of the Master
Servicer,  the cost to the Master  Servicer of  computing  and  furnishing  such
information  may be charged to the  transferor or such agent  referred to above;
however,  the Master  Servicer shall in no event be excused from furnishing such
information.

            Section 5.03      Mutilated, Destroyed, Lost or Stolen Certificates.

            If (i)  any  mutilated  Certificate  is  surrendered  to  the  Trust
Administrator  or the  Authenticating  Agent, or the Trust  Administrator or the
Authenticating  Agent receives  evidence to its satisfaction of the destruction,
loss or theft of any  Certificate,  and (ii)  there is  delivered  to the  Trust
Administrator or the  Authenticating  Agent such security or indemnity as may be
required by them to hold each of them  harmless,  then, in the absence of notice
to the Trust Administrator or the Authenticating Agent that such Certificate has
been acquired by a bona fide purchaser,  the Trust  Administrator  shall execute
and  authenticate  (or  cause  the  Authenticating  Agent to  authenticate)  and
deliver,  in exchange for or in lieu of any such mutilated,  destroyed,  lost or
stolen  Certificate,  a new  Certificate of like tenor and principal  portion or
Percentage  Interest  and of the  same  Class.  Upon  the  issuance  of any  new
Certificate  under this  Section,  the Trust  Administrator  or the  Certificate
Registrar may require the payment of a sum  sufficient to cover any tax or other
governmental  charge  that may be  imposed  in  relation  thereto  and any other
expense  (including  the fees and  expenses  of the Trust  Administrator  or the
Authenticating Agent) in connection therewith.  Any duplicate Certificate issued
pursuant to this Section shall constitute complete and indefeasible  evidence of
ownership in the Trust Estate, as if originally issued, whether or not the lost,
stolen, or destroyed Certificate shall be found at any time.

            Section 5.04      Persons Deemed Owners.

            Prior to the due  presentation of a Certificate for  registration of
transfer, the Seller, the Master Servicer, the Trustee, the Trust Administrator,
the Certificate Registrar and any agent of the Seller, the Master Servicer,  the
Trustee,  the Trust  Administrator  or the  Certificate  Registrar may treat the
Person  in  whose  name  any  Certificate  is  registered  as the  owner of such
Certificate for the purpose of receiving distributions pursuant to Section 4.01,
and for all other  purposes  whatsoever,  and  neither  the  Seller,  the Master
Servicer,  the Trustee, the Trust Administrator,  the Certificate  Registrar nor
any  agent  of  the  Seller,  the  Master  Servicer,   the  Trustee,  the  Trust
Administrator  or the  Certificate  Registrar shall be affected by notice to the
contrary.

            Section  5.05     Access  to List of  Certificateholders'  Names and
Addresses.

            (a)   If the  Trust  Administrator  is  not  acting  as  Certificate
Registrar,  the Certificate  Registrar shall furnish or cause to be furnished to
the  Trust  Administrator,  within  15 days  after  receipt  by the  Certificate
Registrar of a request by the Trust  Administrator  in writing,  a list, in such
form as the  Trust  Administrator  may  reasonably  require,  of the  names  and
addresses of the  Certificateholders  of each Class as of the most recent Record
Date.

            (b)   If five or more Certificateholders (hereinafter referred to as
"applicants") apply in writing to the Trust Administrator,  and such application
states that the applicants  desire to communicate with other  Certificateholders
with respect to their rights under this Agreement or under the  Certificates and
is accompanied by a copy of the communication  which such applicants  propose to
transmit,  then  the  Trust  Administrator  shall,  within  five  Business  Days
following the receipt of such application,  afford such applicants access during
normal business hours to the most recent list of Certificateholders  held by the
Trust Administrator. If such a list is as of the date more than 90 days prior to
the date of receipt of such applicants'  request and the Trust  Administrator is
not the Certificate  Registrar,  the Trust  Administrator shall promptly request
from the  Certificate  Registrar a current  list as provided  in  paragraph  (a)
hereof,  and shall  afford such  applicants  access to such list  promptly  upon
receipt.

            (c)   Every   Certificateholder,   by   receiving   and   holding  a
Certificate,  agrees  with the  Seller,  the Master  Servicer,  the  Certificate
Registrar,  the Trust Administrator and the Trustee that neither the Seller, the
Master Servicer,  the Certificate  Registrar,  the Trust  Administrator  nor the
Trustee  shall be held  accountable  by  reason  of the  disclosure  of any such
information  as  to  the  names,  addresses  and  Percentage  Interests  of  the
Certificateholders   hereunder,   regardless  of  the  source  from  which  such
information was delivered.

            Section 5.06      Maintenance of Office or Agency.

            The Trust Administrator will maintain,  at its expense, an office or
agency where  Certificates  may be surrendered  for  registration of transfer or
exchange and where notices and demands to or upon the  Certificate  Registrar in
respect  of the  Certificates  and  this  Agreement  may be  served.  The  Trust
Administrator  initially designates the Corporate Trust Office and the principal
corporate trust office of the  Authenticating  Agent, if any, as its offices and
agencies for said purposes.

            Section 5.07      Definitive Certificates.

            If (i)(A) the Master  Servicer  advises the Trust  Administrator  in
writing  that the  Clearing  Agency is no longer  willing  or able  properly  to
discharge  its  responsibilities  as depository  with respect to the  Book-Entry
Certificates,  and (B) the  Master  Servicer  is unable  to  locate a  qualified
successor,   (ii)  the  Master  Servicer,  at  its  option,  advises  the  Trust
Administrator  in writing  that it elects to  terminate  the  book-entry  system
through  the  Clearing  Agency,  (iii)  after the  occurrence  of  dismissal  or
resignation of the Master Servicer,  Beneficial  Owners  representing  aggregate
Voting  Interests of not less than 51% of the aggregate Voting Interests of each
outstanding  Class of  Book-Entry  Certificates  advise the Trust  Administrator
through the Clearing Agency and Clearing Agency Participants in writing that the
continuation of a book-entry  system through the Clearing Agency is no longer in
the best interests of the  Beneficial  Owners or (iv) upon the occurrence of the
events  specified in Section  4.07(g) the Trust  Administrator  shall notify the
Beneficial  Owners,  through the Clearing Agency,  of the occurrence of any such
event and of the  availability of Definitive  Certificates to Beneficial  Owners
requesting the same. Upon surrender to the Trust  Administrator  by the Clearing
Agency  of the  Certificates  held of  record  by its  nominee,  accompanied  by
reregistration  instructions  and  directions  to execute and  authenticate  new
Certificates from the Master Servicer, the Trust Administrator shall execute and
authenticate Definitive Certificates for delivery at its Corporate Trust Office.
The Master  Servicer shall arrange for, and will bear all costs of, the printing
and issuance of such  Definitive  Certificates.  Neither the Seller,  the Master
Servicer,  the Trustee nor the Trust Administrator shall be liable for any delay
in delivery of such  instructions  by the Clearing  Agency and may  conclusively
rely on, and shall be protected in relying on, such instructions.

            Section 5.08      Notices to Clearing Agency.

            Whenever notice or other  communication to the Holders of Book-Entry
Certificates  is  required  under this  Agreement,  unless and until  Definitive
Certificates  shall have been issued to  Beneficial  Owners  pursuant to Section
5.07,  the Trust  Administrator  shall give all such notices and  communications
specified  herein  to be given to  Holders  of  Book-Entry  Certificates  to the
Clearing Agency.


<PAGE>






                                   ARTICLE VI

                       THE SELLER AND THE MASTER SERVICER

            Section 6.01      Liability of the Seller and the Master Servicer.

            The  Seller  and  the  Master  Servicer  shall  each  be  liable  in
accordance herewith only to the extent of the obligations  specifically  imposed
by this  Agreement  and  undertaken  hereunder  by the  Seller  and  the  Master
Servicer.

            Section  6.02     Merger  or  Consolidation  of  the  Seller  or the
Master Servicer.

            Subject  to the  following  paragraph,  the  Seller  and the  Master
Servicer each will keep in full effect its existence, rights and franchises as a
corporation  under the laws of the jurisdiction of its  incorporation,  and will
obtain and preserve its qualification to do business as a foreign corporation in
each  jurisdiction  in which  such  qualification  is or shall be  necessary  to
protect the validity and  enforceability of this Agreement,  the Certificates or
any of the  Mortgage  Loans and to  perform  its  respective  duties  under this
Agreement.

            The Seller or the Master Servicer may be merged or consolidated with
or into any Person,  or transfer all or  substantially  all of its assets to any
Person,  in which case any Person  resulting from any merger or consolidation to
which the Seller or Master Servicer shall be a party,  or any Person  succeeding
to the business of the Seller or Master Servicer,  shall be the successor of the
Seller or Master  Servicer  hereunder,  without the  execution  or filing of any
paper or any  further  act on the part of any of the  parties  hereto,  anything
herein to the contrary notwithstanding;  provided, however, that, in the case of
the Master  Servicer,  any such successor or resulting Person shall be qualified
to service mortgage loans for FNMA or FHLMC.

            Section 6.03      Limitation on Liability of the Seller,  the Master
Servicer and Others.

            Neither the Seller nor the Master Servicer nor any subcontractor nor
any of the  partners,  directors,  officers,  employees or agents of any of them
shall be under any liability to the Trust Estate or the  Certificateholders  and
all such Persons shall be held  harmless for any action taken or for  refraining
from the taking of any action in good faith pursuant to this  Agreement,  or for
errors in judgment; provided, however, that this provision shall not protect any
such Person against any breach of warranties or  representations  made herein or
against  any  liability  which would  otherwise  be imposed by reason of willful
misfeasance,  bad faith or gross  negligence in the  performance of duties or by
reason of reckless  disregard of obligations and duties  hereunder.  The Seller,
the Master Servicer,  any  subcontractor,  and any partner,  director,  officer,
employee  or agent of any of them shall be entitled  to  indemnification  by the
Trust Estate and will be held  harmless  against any loss,  liability or expense
incurred in connection  with any legal action  relating to this Agreement or the
Certificates,  other than any loss,  liability or expense  incurred by reason of
willful misfeasance,  bad faith or gross negligence in the performance of his or
its  duties  hereunder  or by  reason  of  reckless  disregard  of  his  or  its
obligations and duties hereunder. The Seller, the Master Servicer and any of the
directors, officers, employees or agents of either may rely in good faith on any
document of any kind which,  prima facie, is properly  executed and submitted by
any Person respecting any matters arising hereunder.  Neither the Seller nor the
Master Servicer shall be under any obligation to appear in,  prosecute or defend
any legal action  unless such action is related to its  respective  duties under
this  Agreement  and which in its opinion  does not involve it in any expense or
liability;  provided, however, that the Seller or the Master Servicer may in its
discretion  undertake  any such action which it may deem  necessary or desirable
with respect to this  Agreement and the rights and duties of the parties  hereto
and the interests of the Certificateholders  hereunder if the Certificateholders
offer to the  Seller  or the  Master  Servicer,  as the case may be,  reasonable
security or indemnity  against the costs,  expenses and liabilities which may be
incurred therein or thereby. In such event, the legal expenses and costs of such
action  and any  liability  resulting  therefrom  shall be  expenses,  costs and
liabilities of the Trust Estate,  and the Seller or the Master Servicer shall be
entitled to be  reimbursed  therefor out of the  Certificate  Account,  and such
amounts shall,  on the following  Distribution  Date or  Distribution  Dates, be
allocated in reduction of  distributions on the Class A and Class B Certificates
in the same manner as Realized Losses are allocated pursuant to Section 4.02(a).

            Section 6.04      Resignation of the Master Servicer.

            The Master Servicer shall not resign from the obligations and duties
hereby imposed on it except upon  determination that its duties hereunder are no
longer permissible under applicable law or are in material conflict by reason of
applicable  law  with  any  other   activities   carried  on  by  it.  Any  such
determination  permitting  the  resignation  of the  Master  Servicer  shall  be
evidenced  by an Opinion of Counsel to such effect  delivered to the Trustee and
the Trust Administrator,  a copy of which shall be delivered, but not addressed,
to Financial  Security.  No such  resignation  shall become  effective until the
Trustee,  the Trust Administrator or a successor servicer shall have assumed the
Master  Servicer's   responsibilities,   duties,   liabilities  and  obligations
hereunder.

            Section 6.05      Compensation to the Master Servicer.

            The Master Servicer shall be entitled to receive a monthly fee equal
to the Master Servicing Fee, as compensation for services rendered by the Master
Servicer under this Agreement.  The Master Servicer also will be entitled to any
late reporting fees paid by a Servicer  pursuant to its Servicing  Agreement and
any  investment  income  on funds  on  deposit  in the  Certificate  Account  as
additional compensation.

            Section 6.06      Assignment  or  Delegation  of  Duties  by  Master
Servicer.

            The Master  Servicer shall not assign or transfer any of its rights,
benefits or privileges under this Agreement to any other Person,  or delegate to
or subcontract  with, or authorize or appoint any other Person to perform any of
the duties,  covenants or  obligations  to be  performed by the Master  Servicer
without the prior  written  consent of the Trustee and the Trust  Administrator,
and any agreement,  instrument or act purporting to effect any such  assignment,
transfer,   delegation  or  appointment  shall  be  void.   Notwithstanding  the
foregoing,  the Master  Servicer  shall have the right without the prior written
consent of the Trustee or the Trust  Administrator  (i) to assign its rights and
delegate its duties and obligations hereunder;  provided,  however, that (a) the
purchaser or transferee  accepting such assignment or delegation is qualified to
service mortgage loans for FNMA or FHLMC, is satisfactory to the Trustee and the
Trust Administrator,  in the exercise of its reasonable  judgment,  and executes
and delivers to the Trustee and the Trust  Administrator  an agreement,  in form
and   substance   reasonably   satisfactory   to  the   Trustee  and  the  Trust
Administrator,  which  contains an assumption by such purchaser or transferee of
the due and punctual  performance  and observance of each covenant and condition
to be performed or observed by the Master Servicer  hereunder from and after the
date of such agreement;  and (b) each  applicable  Rating Agency's rating of any
Certificates in effect immediately prior to such assignment, sale or transfer is
not  reasonably  likely to be qualified,  downgraded or withdrawn as a result of
such assignment, sale or transfer and the Certificates are not reasonably likely
to be placed on credit review status by any such Rating Agency  (without  giving
effect to the guaranty provided by Financial Security); and (ii) to delegate to,
subcontract with,  authorize,  or appoint an affiliate of the Master Servicer to
perform and carry out any duties,  covenants or  obligations to be performed and
carried out by the Master  Servicer under this Agreement and hereby agrees so to
delegate,  subcontract,  authorize  or  appoint  to an  affiliate  of the Master
Servicer any duties, covenants or obligations to be performed and carried out by
the Master Servicer to the extent that such duties, covenants or obligations are
to be  performed  in any state or states in which  the  Master  Servicer  is not
authorized to do business as a foreign corporation but in which the affiliate is
so  authorized.  In  no  case,  however,  shall  any  permitted  assignment  and
delegation  relieve the Master  Servicer of any liability to the Trustee,  Trust
Administrator  or the Seller under this  Agreement,  incurred by it prior to the
time that the conditions contained in clause (i) above are met.

            Section 6.07      Indemnification  of Trustee,  Trust  Administrator
and Seller by Master Servicer.

            The Master  Servicer shall  indemnify and hold harmless the Trustee,
the Trust  Administrator  and the  Seller  and any  director,  officer  or agent
thereof against any loss, liability or expense,  including reasonable attorney's
fees,  arising  out of, in  connection  with or  incurred  by reason of  willful
misfeasance,  bad faith or negligence in the performance of duties of the Master
Servicer  under  this  Agreement  or by  reason  of  reckless  disregard  of its
obligations  and duties  under this  Agreement.  Any  payment  pursuant  to this
Section made by the Master Servicer to the Trustee,  the Trust  Administrator or
the  Seller  shall  be from  such  entity's  own  funds,  without  reimbursement
therefor.  The provisions of this Section 6.07 shall survive the  termination of
this Agreement.

            Section 6.08      Master  Servicer  Covenants  Concerning  Year 2000
Compliance.

            The  Master  Servicer  covenants  that it is  working  to modify its
computer  and other  systems  used in the  performance  of its  duties as Master
Servicer  for the  Certificates  to operate in a manner such that,  on and after
January 1, 2000, the Master  Servicer can perform its duties in accordance  with
the terms of this Agreement.


<PAGE>






                                   ARTICLE VII

                                     DEFAULT

            Section 7.01      Events of Default.

            In case one or more of the following Events of Default by the Master
Servicer shall occur and be continuing, that is to say:

               (i)     any failure by the Master Servicer (a) to remit any funds
      to the Paying  Agent as required by Section 4.03 or (b) to  distribute  or
      cause to be distributed to  Certificateholders  any payment required to be
      made by the Master  Servicer under the terms of this Agreement  which,  in
      either case,  continues  unremedied  for a period of three  business  days
      after the date upon which written  notice of such  failure,  requiring the
      same to be remedied,  shall have been given to the Master  Servicer by the
      Trustee  or to the  Master  Servicer  and the  Trustee  by the  holders of
      Certificates  evidencing  in  the  aggregate  not  less  than  25%  of the
      aggregate Voting Interest represented by all Certificates;

               (ii)    any  failure on the part of the Master  Servicer  duly to
      observe or perform in any material  respect any other of the  covenants or
      agreements on the part of the Master  Servicer in the  Certificates  or in
      this Agreement  which  continues  unremedied for a period of 60 days after
      the date on which written notice of such failure, requiring the same to be
      remedied,  shall have been given to the Master Servicer by the Trustee, or
      to the Master  Servicer  and the  Trustee by the  holders of  Certificates
      evidencing  in the  aggregate  not less than 25% of the  aggregate  Voting
      Interest represented by all Certificates;

               (iii)   a decree  or order of a court or  agency  or  supervisory
      authority  having  jurisdiction  in the premises for the  appointment of a
      trustee,   conservator,   receiver  or  liquidator   in  any   bankruptcy,
      insolvency,  readjustment of debt, marshaling of assets and liabilities or
      similar proceedings,  or for the winding-up or liquidation of its affairs,
      shall have been  entered  against the Master  Servicer  and such decree or
      order shall have remained in force  undischarged and unstayed for a period
      of 60 days;

               (iv)    the Master Servicer shall consent to the appointment of a
      trustee,  conservator,  receiver or liquidator or liquidating committee in
      any bankruptcy, insolvency, readjustment of debt, marshaling of assets and
      liabilities,  voluntary  liquidation or similar proceedings of or relating
      to the Master Servicer,  or of or relating to all or substantially  all of
      its property;

               (v)     the Master  Servicer shall admit in writing its inability
      to pay its debts  generally  as they become  due,  file a petition to take
      advantage  of any  applicable  insolvency,  bankruptcy  or  reorganization
      statute,   make  an  assignment  for  the  benefit  of  its  creditors  or
      voluntarily suspend payment of its obligations;

               (vi)    the Master Servicer shall be dissolved,  or shall dispose
      of all or  substantially  all of its assets;  or consolidate with or merge
      into another entity or shall permit another entity to consolidate or merge
      into it, such that the  resulting  entity does not meet the criteria for a
      successor servicer, as specified in Section 6.02 hereof; or

               (vii)   the Master Servicer and any  subservicer  appointed by it
      becomes ineligible to service for both FNMA and FHLMC, which ineligibility
      continues unremedied for a period of 90 days.

then, and in each and every such case,  subject to applicable law, so long as an
Event of Default shall not have been remedied, either the Trustee or the holders
of  Certificates  evidencing  in the  aggregate  not  less  than  66 2/3% of the
aggregate Voting Interest represented by all Certificates,  by notice in writing
to the Master Servicer and the Trust  Administrator (and to the Trustee if given
by the  Certificateholders)  may terminate all of the rights and  obligations of
the Master Servicer under this Agreement and in and to the Mortgage  Loans,  but
without  prejudice  to any  rights  which the  Master  Servicer  may have to the
aggregate  Master Servicing Fees due prior to the date of transfer of the Master
Servicer's responsibilities  hereunder,  reimbursement of expenses to the extent
permitted by this  Agreement,  Periodic  Advances and other  advances of its own
funds. Upon receipt by the Master Servicer of such written notice, all authority
and power of the Master Servicer under this  Agreement,  whether with respect to
the Certificates or the Mortgage Loans or otherwise, shall pass to and be vested
in the Trust  Administrator  on behalf of the Trustee pursuant to and under this
Section, subject to the provisions of Section 7.05; and, without limitation, the
Trust  Administrator on behalf of the Trustee is hereby authorized and empowered
to execute and deliver, on behalf of the Master Servicer, as attorney-in-fact or
otherwise, any and all documents and other instruments,  and to do or accomplish
all other acts or things necessary or appropriate to effect the purposes of such
notice of  termination,  whether to complete  the transfer  and  endorsement  or
assignment of the Mortgage Loans and related documents or otherwise.  The Master
Servicer  agrees to cooperate  with the Trust  Administrator  and the Trustee in
effecting the termination of the Master Servicer's  responsibilities  and rights
hereunder  and shall  promptly  provide the Trustee  all  documents  and records
reasonably  requested  by it  to  enable  it to  assume  the  Master  Servicer's
functions  hereunder and shall promptly also transfer to the Trust Administrator
on behalf of the Trustee  all  amounts  which then have been or should have been
deposited  in the  Certificate  Account  by the  Master  Servicer  or which  are
thereafter received by the Master Servicer with respect to the Mortgage Loans.

            Section 7.02      Other Remedies of Trustee.

            During  the  continuance  of any Event of  Default,  so long as such
Event of Default shall not have been remedied,  the Trustee,  in addition to the
rights  specified  in Section  7.01,  shall  have the right,  in its own name as
trustee of an express  trust,  to take all actions now or hereafter  existing at
law, in equity or by statute to enforce its rights and  remedies  and to protect
the interests,  and enforce the rights and remedies,  of the  Certificateholders
(including the institution and prosecution of all judicial,  administrative  and
other  proceedings  and the  filing of  proofs  of claim and debt in  connection
therewith).  Except as otherwise expressly provided in this Agreement, no remedy
provided for by this Agreement shall be exclusive of any other remedy,  and each
and every remedy shall be cumulative  and in addition to any other remedy and no
delay or omission to exercise any right or remedy shall impair any such right or
remedy or shall be deemed to be a waiver of any Event of Default.

            Section 7.03      Directions  by  Certificateholders  and  Duties of
Trustee During Event of Default.

            During  the  continuance  of  any  Event  of  Default,   Holders  of
Certificates  evidencing  in the  aggregate  not less than 25% of the  aggregate
Voting Interest  represented by all Certificates may direct the time, method and
place of conducting any proceeding for any remedy  available to the Trustee,  or
exercising any trust or power conferred upon the Trustee,  under this Agreement;
provided,  however,  that the Trustee shall be under no obligation to pursue any
such  remedy,  or to exercise  any of the rights or powers  vested in it by this
agreement (including, without limitation, (i) the conducting or defending of any
administrative action or litigation hereunder or in relation hereto and (ii) the
terminating  of the Master  Servicer  from its  rights  and  duties as  servicer
hereunder) at the request, order or direction of any of the  Certificateholders,
unless such  Certificateholders  shall have  offered to the  Trustee  reasonable
security or indemnity  against the cost,  expenses and liabilities  which may be
incurred  therein  or  thereby  and,  provided  further,  that,  subject  to the
provisions  of  Section  8.01,  the  Trustee  shall have the right to decline to
follow any such  direction  if the  Trustee,  in  accordance  with an Opinion of
Counsel,  determines  that the action or proceeding so directed may not lawfully
be  taken  or if the  Trustee  in good  faith  determines  that  the  action  or
proceeding  so directed  would  involve it in personal  liability or be unjustly
prejudicial to the nonassenting Certificateholders.

            Section 7.04      Action  upon   Certain   Failures  of  the  Master
Servicer and upon Event of Default.

            In the event that the Trustee or the Trust  Administrator shall have
knowledge of any failure of the Master Servicer  specified in Section 7.01(i) or
(ii) which would become an Event of Default upon the Master  Servicer's  failure
to remedy the same after notice, the Trustee or the Trust Administrator may, but
need not if the Trustee or the Trust Administrator, as the case may be, deems it
not in the Certificateholders'  best interest, give notice thereof to the Master
Servicer. For all purposes of this Agreement, in the absence of actual knowledge
by a  corporate  trust  officer of the Trustee or the Trust  Administrator,  the
Trustee or the Trust  Administrator,  as the case may be, shall not be deemed to
have  knowledge  of any failure of the Master  Servicer as  specified in Section
7.01(i) and (ii) or any Event of Default unless  notified  thereof in writing by
the Master Servicer or by a Certificateholder.

            Section 7.05      Trust   Administrator   to  Act;   Appointment  of
Successor.

            When the Master Servicer receives notice of termination  pursuant to
Section 7.01 or the Trustee or the Trust Administrator  receives the resignation
of the Master  Servicer  evidenced by an Opinion of Counsel  pursuant to Section
6.04, the Trust Administrator on behalf of the Trustee shall be the successor in
all  respects to the Master  Servicer in its capacity as master  servicer  under
this Agreement and the  transactions  set forth or provided for herein and shall
have the rights and  powers and be subject to all the  responsibilities,  duties
and liabilities  relating thereto placed on the Master Servicer by the terms and
provisions  hereof and in its  capacity  as such  successor  shall have the same
limitation of liability herein granted to the Master Servicer. In the event that
the Trust  Administrator  is  succeeding  to the Master  Servicer  as the Master
Servicer, as compensation therefor, the Trust Administrator shall be entitled to
receive  monthly such portion of the Master  Servicing  Fee,  together with such
other  servicing  compensation  as is  agreed  to at  such  time  by  the  Trust
Administrator  and the Master  Servicer,  but in no event more than 25%  thereof
until the date of final cessation of the Master Servicer's  servicing activities
hereunder.  Notwithstanding  the above, the Trust Administrator may, if it shall
be  unwilling  to so act,  or  shall,  if it is  unable to so act or to obtain a
qualifying  bid as described  below,  appoint,  or petition a court of competent
jurisdiction  to  appoint,  any housing and home  finance  institution,  bank or
mortgage  servicing  institution having a net worth of not less than $10,000,000
and  meeting  such other  standards  for a  successor  servicer as are set forth
herein,  as the successor to the Master Servicer  hereunder in the assumption of
all or any part of the  responsibilities,  duties or  liabilities  of the Master
Servicer  hereunder;  provided,  however,  that  until such a  successor  master
servicer  is  appointed  and  has  assumed  the  responsibilities,   duties  and
liabilities of the Master  Servicer  hereunder,  the Trust  Administrator  shall
continue  as the  successor  to the  Master  Servicer  as  provided  above.  The
compensation of any successor  master servicer so appointed shall not exceed the
compensation   specified  in  Section  6.05  hereof.  In  the  event  the  Trust
Administrator  is  required  to  solicit  bids  as  provided  above,  the  Trust
Administrator shall solicit, by public announcement,  bids from housing and home
finance  institutions,  banks and mortgage  servicing  institutions  meeting the
qualifications  set forth in the  preceding  sentence  for the  purchase  of the
master  servicing  functions.  Such public  announcement  shall specify that the
successor  master  servicer  shall be  entitled to the full amount of the Master
Servicing Fee as compensation together with the other servicing  compensation in
the form of late reporting fees or otherwise as provided in Section 6.05. Within
30 days  after  any such  public  announcement,  the Trust  Administrator  shall
negotiate and effect the sale,  transfer and assignment of the master  servicing
rights and  responsibilities  hereunder to the qualified  party  submitting  the
highest  qualifying  bid.  The Trust  Administrator  shall  deduct all costs and
expenses of any public  announcement and of any sale, transfer and assignment of
the servicing rights and responsibilities hereunder from any sum received by the
Trust Administrator from the successor to the Master Servicer in respect of such
sale, transfer and assignment.  After such deductions, the remainder of such sum
shall be paid by the Trust  Administrator  to the Master Servicer at the time of
such sale, transfer and assignment to the Master Servicer's successor. The Trust
Administrator  and such successor  shall take such action,  consistent with this
Agreement,  as shall be necessary to effectuate any such succession.  The Master
Servicer  agrees to cooperate  with the Trust  Administrator  and any  successor
servicer  in  effecting  the  termination  of the  Master  Servicer's  servicing
responsibilities  and rights  hereunder  and shall  promptly  provide  the Trust
Administrator or such successor master  servicer,  as applicable,  all documents
and  records  reasonably  requested  by it to  enable it to  assume  the  Master
Servicer's  function  hereunder  and shall  promptly  also transfer to the Trust
Administrator  or such successor  master  servicer,  as applicable,  all amounts
which then have been or should have been deposited in the Certificate Account by
the Master Servicer or which are thereafter received by the Master Servicer with
respect to the Mortgage  Loans.  Neither the Trust  Administrator  nor any other
successor  master servicer shall be deemed to be in default  hereunder by reason
of any failure to make, or any delay in making,  any  distribution  hereunder or
any portion thereof caused by (i) the failure of the Master Servicer to deliver,
or  any  delay  in  delivering,  cash,  documents  or  records  to it,  or  (ii)
restrictions  imposed by any regulatory  authority having  jurisdiction over the
Master Servicer.  Notwithstanding  anything to the contrary contained in Section
7.01 above or this Section  7.05,  the Master  Servicer  shall retain all of its
rights and  responsibilities  hereunder,  and no successor  (including the Trust
Administrator)  shall  succeed  thereto,  if  the  assumption  thereof  by  such
successor  would cause the rating  assigned to any  Certificates  to be revoked,
downgraded or placed on credit review status (other than for possible upgrading)
(without,  in the case of the  Class  A-12  Certificates,  giving  effect to the
guaranty  provided  by  Financial  Security)  by either  Rating  Agency  and the
retention   thereof  by  the  Master  Servicer  would  avert  such   revocation,
downgrading or review.

            Section 7.06      Notification to Certificateholders.

            Upon any  termination  of the Master  Servicer or  appointment  of a
successor  master  servicer,   in  each  case  as  provided  herein,  the  Trust
Administrator shall give prompt written notice thereof to  Certificateholders at
their  respective  addresses  appearing in the Certificate  Register.  The Trust
Administrator  shall also,  within 45 days after the  occurrence of any Event of
Default  known to the  Trust  Administrator,  give  written  notice  thereof  to
Certificateholders  at their respective  addresses  appearing in the Certificate
Register,  unless such Event of Default  shall have been cured or waived  within
said 45 day period.


<PAGE>






                                  ARTICLE VIII

              CONCERNING THE TRUSTEE AND THE TRUST ADMINISTRATOR

            Section 8.01      Duties of Trustee and the Trust Administrator.

            The Trustee and the Trust Administrator,  prior to the occurrence of
an Event of Default and after the curing of all Events of Default which may have
occurred,  undertakes  to  perform  such  duties  and only  such  duties  as are
specifically  set  forth in this  Agreement.  In case an Event  of  Default  has
occurred  (which has not been cured),  the Trustee and the Trust  Administrator,
subject to the provisions of Sections 7.01,  7.03, 7.04 and 7.05, shall exercise
such of the rights and powers vested in it by this  Agreement,  and use the same
degree of care and skill in its exercise as a prudent investor would exercise or
use under the circumstances in the conduct of such investor's own affairs.

            The  Trustee  and  the  Trust  Administrator,  upon  receipt  of all
resolutions,  certificates,  statements, opinions, reports, documents, orders or
other instruments  furnished to the Trustee and the Trust  Administrator,  which
are  specifically  required to be  furnished  pursuant to any  provision of this
Agreement, shall examine them to determine whether they are in the form required
by  this  Agreement;   provided,   however,  that  the  Trustee  and  the  Trust
Administrator  shall not be  responsible  for the  accuracy  or  content  of any
certificate,  statement,  instrument, report, notice or other document furnished
by the Master Servicer or the Servicers pursuant to Articles III, IV and IX.

            No  provision  of this  Agreement  shall be construed to relieve the
Trustee and the Trust Administrator from liability for its own negligent action,
its own  negligent  failure  to act or its  own  willful  misconduct;  provided,
however, that:

               (i)     Prior to the  occurrence of an Event of Default and after
      the curing of all such  Events of  Default  which may have  occurred,  the
      duties and obligations of the Trustee and the Trust Administrator shall be
      determined solely by the express provisions of this Agreement, the Trustee
      and the Trust Administrator shall not be liable except for the performance
      of such  duties  and  obligations  as are  specifically  set forth in this
      Agreement,  no implied  covenants or  obligations  shall be read into this
      Agreement  against  the Trustee  and the Trust  Administrator  and, in the
      absence  of  bad  faith  on  the  part  of  the   Trustee  and  the  Trust
      Administrator,  the Trustee and the Trust  Administrator  may conclusively
      rely,  as to the  truth  of the  statements  and  the  correctness  of the
      opinions expressed therein, upon any certificates or opinions furnished to
      the  Trustee  and  the  Trust   Administrator,   and   conforming  to  the
      requirements of this Agreement;

               (ii)    The  Trustee  and the  Trust  Administrator  shall not be
      personally liable with respect to any action taken, suffered or omitted to
      be taken by it in good faith in  accordance  with the direction of holders
      of  Certificates  which evidence in the aggregate not less than 25% of the
      Voting  Interest  represented  by all  Certificates  relating to the time,
      method and place of conducting any proceeding for any remedy  available to
      the Trustee and the Trust Administrator,  or exercising any trust or power
      conferred  upon  the  Trustee  and the  Trust  Administrator,  under  this
      Agreement; and

               (iii)   The  Trustee  and the  Trust  Administrator  shall not be
      liable  for any  error  of  judgment  made in good  faith  by any of their
      respective  Responsible  Officers,  unless  it  shall be  proved  that the
      Trustee or the Trust  Administrator  or such Responsible  Officer,  as the
      case may be, was negligent in ascertaining the pertinent facts.

            None of the provisions contained in this Agreement shall require the
Trustee or the Trust  Administrator to expend or risk its own funds or otherwise
incur  personal  financial  liability  in the  performance  of any of its duties
hereunder  or in the  exercise  of any of its  rights  or  powers  if  there  is
reasonable  ground  for  believing  that  repayment  of such  funds or  adequate
indemnity against such risk or liability is not reasonably assured to it.

            Section 8.02      Certain  Matters  Affecting  the  Trustee  and the
Trust Administrator.

            Except as otherwise provided in Section 8.01:

               (i)     Each of the  Trustee  and  the  Trust  Administrator  may
      request  and rely and shall be  protected  in acting  or  refraining  from
      acting upon any resolution, Officers' Certificate, certificate of auditors
      or any other certificate,  statement, instrument, opinion, report, notice,
      request,  consent,  order,  appraisal,  bond or other  paper  or  document
      believed by it to be genuine and to have been signed or  presented  by the
      proper  party  or  parties  and  the  manner  of  obtaining  consents  and
      evidencing the  authorization of the execution thereof shall be subject to
      such  reasonable  regulations  as the Trustee or Trust  Administrator,  as
      applicable, may prescribe;

               (ii)    Each of the  Trustee  and  the  Trust  Administrator  may
      consult  with  counsel,  and any  written  advice of such  counsel  or any
      Opinion of Counsel shall be full and complete authorization and protection
      in respect of any action  taken or suffered or omitted by it  hereunder in
      good faith and in accordance with such Opinion of Counsel;

               (iii)   Neither of the Trustee nor the Trust  Administrator shall
      be personally  liable for any action  taken,  suffered or omitted by it in
      good faith and believed by it to be authorized or within the discretion or
      rights or powers conferred upon it by this Agreement;

               (iv)    Subject to Section 7.04,  the Trust  Administrator  shall
      not be accountable, shall have no liability and makes no representation as
      to any acts or omissions  hereunder of the Master Servicer until such time
      as the Trust  Administrator  may be  required  to act as  Master  Servicer
      pursuant to Section 7.05 and  thereupon  only for the acts or omissions of
      the Trust Administrator as successor Master Servicer; and

               (v)     Each of the  Trustee  and  the  Trust  Administrator  may
      execute  any of the  trusts or powers  hereunder  or  perform  any  duties
      hereunder either directly or by or through agents or attorneys.

            Section 8.03      Neither Trustee nor Trust  Administrator  Required
to Make Investigation.

            Prior to the  occurrence of an Event of Default  hereunder and after
the curing of all Events of Default which may have occurred, neither the Trustee
nor the Trust  Administrator  shall be bound to make any investigation  into the
facts or matters stated in any resolution,  certificate,  statement, instrument,
opinion,  report, notice, request,  consent,  order, appraisal,  bond, Mortgage,
Mortgage Note or other paper or document  (provided the same appears  regular on
its face),  unless  requested  in  writing  to do so by holders of  Certificates
evidencing in the aggregate not less than 51% of the Voting Interest represented
by all Certificates;  provided, however, that if the payment within a reasonable
time to the  Trustee  or the  Trust  Administrator  of the  costs,  expenses  or
liabilities  likely to be incurred by it in the making of such investigation is,
in the opinion of the Trustee or the Trust Administrator, not reasonably assured
to the Trustee or the Trust  Administrator by the security afforded to it by the
terms of this  Agreement,  the  Trustee or the Trust  Administrator  may require
reasonable  indemnity  against  such  expense or  liability as a condition to so
proceeding.  The reasonable expense of every such investigation shall be paid by
the Master Servicer or, if paid by the Trustee or the Trust Administrator, shall
be repaid by the Master Servicer upon demand.

            Section 8.04      Neither Trustee nor Trust Administrator Liable for
Certificates or Mortgage Loans.

            The recitals  contained herein and in the  Certificates  (other than
the certificate of  authentication  on the  Certificates)  shall be taken as the
statements  of the Seller,  and neither the Trustee nor the Trust  Administrator
assumes  responsibility  as to the correctness of the same.  Neither the Trustee
nor the Trust  Administrator makes any representation for the correctness of the
same. Neither the Trustee nor the Trust  Administrator  makes any representation
as to the validity or sufficiency of this Agreement or of the Certificates or of
any Mortgage  Loan or related  document.  Subject to Section  2.04,  neither the
Trustee  nor  the  Trust  Administrator  shall  be  accountable  for  the use or
application by the Seller of any of the  Certificates or of the proceeds of such
Certificates,  or for the use or  application  of any funds  paid to the  Master
Servicer in respect of the Mortgage Loans deposited into the Certificate Account
by the Master  Servicer or, in its capacity as trustee,  for  investment  of any
such amounts.

            Section 8.05      Trustee   and   Trust    Administrator   May   Own
Certificates.

            Each of the Trustee,  the Trust Administrator and any agent thereof,
in its  individual  or any other  capacity,  may  become the owner or pledgee of
Certificates  with the same rights it would have if it were not  Trustee,  Trust
Administrator  or such agent and may transact banking and/or trust business with
the Seller, the Master Servicer or their Affiliates.

            Section 8.06      The Master Servicer to Pay Fees and Expenses.

            The  Master  Servicer  covenants  and  agrees  to pay to each of the
Trustee and the Trust  Administrator  from time to time, and each of the Trustee
and  the  Trust   Administrator   shall  be  entitled  to  receive,   reasonable
compensation  (which  shall not be limited by any  provision of law in regard to
the compensation of a trustee of an express trust) for all services  rendered by
it in the  execution  of the  trusts  hereby  created  and in the  exercise  and
performance  of any of the  powers and duties  hereunder  of the  Trustee or the
Trust  Administrator,  as the case may be, and the Master  Servicer  will pay or
reimburse the Trustee or the Trust  Administrator,  as the case may be, upon its
request for all reasonable expenses, disbursements and advances incurred or made
by it in accordance with any of the provisions of this Agreement  (including the
reasonable compensation and the expenses and disbursements of its counsel and of
all persons not regularly in its employ) except any such expense,  disbursement,
or advance as may arise from its negligence or bad faith.

            Section 8.07      Eligibility Requirements.

            Each of the Trustee and the Trust  Administrator  hereunder shall at
all times (i) be a corporation or association  having its principal  office in a
state and city acceptable to the Seller,  organized and doing business under the
laws of such state or the United States of America,  authorized  under such laws
to exercise corporate trust powers,  having a combined capital and surplus of at
least $50,000,000,  or shall be a member of a bank holding system, the aggregate
combined capital and surplus of which is at least $50,000,000, provided that its
separate capital and surplus shall at all times be at least the amount specified
in Section  310(a)(2)  of the Trust  Indenture  Act of 1939,  (ii) be subject to
supervision or examination by federal or state authority and (iii) have a credit
rating or be otherwise  acceptable  to the Rating  Agencies such that neither of
the Rating  Agencies would reduce their  respective  then current ratings of the
Certificates  (or have provided such security from time to time as is sufficient
to avoid such reduction) as evidenced in writing by each Rating Agency.  If such
corporation or  association  publishes  reports of condition at least  annually,
pursuant to law or to the requirements of the aforesaid supervising or examining
authority,  then for the  purposes  of this  Section  the  combined  capital and
surplus of such  corporation or  association  shall be deemed to be its combined
capital  and  surplus as set forth in its most  recent  report of  condition  so
published.  In case at any time the  Trustee  or the Trust  Administrator  shall
cease to be eligible in accordance  with the  provisions  of this Section,  such
entity shall resign  immediately in the manner and with the effect  specified in
Section 8.08.

            Section 8.08      Resignation and Removal.

            Either of the  Trustee  or the Trust  Administrator  may at any time
resign and be discharged  from the trust hereby created by giving written notice
of resignation to the Master Servicer, such resignation to be effective upon the
appointment of a successor trustee or trust  administrator.  Upon receiving such
notice of resignation,  the Master  Servicer shall promptly  appoint a successor
trustee or trust administrator by written instrument,  in duplicate, one copy of
which  instrument shall be delivered to the resigning entity and one copy to its
successor.  If no  successor  trustee  or trust  administrator  shall  have been
appointed and have accepted  appointment within 30 days after the giving of such
notice of resignation, the resigning Trustee or Trust Administrator, as the case
may be, may petition any court of competent  jurisdiction for the appointment of
a successor trustee or trust administrator.

            If at any time the Trustee or the Trust Administrator shall cease to
be eligible in accordance  with the provisions of Section 8.07 and shall fail to
resign after written request for its resignation by the Master  Servicer,  or if
at any time the Trustee or the Trust  Administrator  shall  become  incapable of
acting,  or an order for relief  shall have been  entered in any  bankruptcy  or
insolvency  proceeding with respect to such entity, or a receiver of such entity
or of its property  shall be appointed,  or any public officer shall take charge
or  control of the  Trustee or the Trust  Administrator  or of the  property  or
affairs  of  the  Trustee  or  the  Trust   Administrator  for  the  purpose  of
rehabilitation,  conversion or liquidation, or the Master Servicer shall deem it
necessary  in order to  change  the  situs of the  Trust  Estate  for  state tax
reasons,  then the Master  Servicer  shall  remove the Trustee  and/or the Trust
Administrator,  as the case may be,  and  appoint  a  successor  trustee  and/or
successor trust administrator by written instrument,  in duplicate,  one copy of
which  instrument  shall be delivered to the Trustee or Trust  Administrator  so
removed and one copy to the successor trustee or successor trust  administrator,
as the case may be.

            The Holders of  Certificates  evidencing  in the  aggregate not less
than 51% of the Voting Interests  represented by all  Certificates  (except that
any Certificate registered in the name of the Seller, the Master Servicer or any
affiliate  thereof  will not be taken into  account in  determining  whether the
requisite Voting Interests has been obtained) may at any time remove the Trustee
and/or the Trust  Administrator and appoint a successor by written instrument or
instruments,  in triplicate,  signed by such holders or their  attorneys-in-fact
duly authorized, one complete set of which instruments shall be delivered to the
Master  Servicer,  one complete set of which shall be delivered to the entity or
entities so removed and one  complete  set of which  shall be  delivered  to the
successor so appointed.

            Any resignation or removal of the Trustee or the Trust Administrator
and appointment of a successor pursuant to any of the provisions of this Section
shall become  effective  upon  acceptance  of  appointment  by the  successor as
provided in Section 8.09.

            Section 8.09      Successor.

            Any successor trustee or successor trust administrator  appointed as
provided in Section 8.08 shall  execute,  acknowledge  and deliver to the Master
Servicer and to its predecessor trustee or trust administrator,  as the case may
be, an  instrument  accepting  such  appointment  hereunder,  and  thereupon the
resignation or removal of the predecessor  trustee or trust  administrator shall
become  effective,  and  such  successor,  without  any  further  act,  deed  or
reconveyance,  shall become fully vested with all the rights, powers, duties and
obligations  of its  predecessor  hereunder,  with like effect as if  originally
named as  trustee  or trust  administrator,  as the  case  may be,  herein.  The
predecessor  trustee or trust  administrator  shall deliver to its successor all
Owner  Mortgage  Loan Files and  related  documents  and  statements  held by it
hereunder  (other  than any  Owner  Mortgage  Loan  Files at the time  held by a
Custodian,  which  Custodian  shall  become the agent of any  successor  trustee
hereunder), and the Seller, the Master Servicer and the predecessor entity shall
execute and deliver such  instruments and do such other things as may reasonably
be required for more fully and certainly vesting and confirming in the successor
trustee or successor trust  administrator,  as the case may be, all such rights,
powers,  duties and  obligations.  No  successor  shall  accept  appointment  as
provided in this Section  unless at the time of such  acceptance  such successor
shall be eligible under the provisions of Section 8.07

            Upon  acceptance of  appointment  by a successor as provided in this
Section, the Master Servicer shall mail notice of the succession of such trustee
or  trust  administrator  hereunder  to all  Holders  of  Certificates  at their
addresses as shown in the Certificate  Register. If the Master Servicer fails to
mail such notice within ten days after  acceptance  of the successor  trustee or
successor  trust  administrator,  as the case may be, the  successor  trustee or
trust  administrator  shall cause such notice to be mailed at the expense of the
Master Servicer.

            Section 8.10      Merger or Consolidation.

            Any Person into which either the Trustee or the Trust  Administrator
may be merged or converted or with which it may be consolidated, to which it may
sell or  transfer  its  corporate  trust  business  and  assets  as a  whole  or
substantially  as a  whole  or any  Person  resulting  from  any  merger,  sale,
transfer,  conversion  or  consolidation  to  which  the  Trustee  or the  Trust
Administrator shall be a party, or any Person succeeding to the business of such
entity,  shall be the  successor of the Trustee or Trust  Administrator,  as the
case  may be,  hereunder;  provided,  however,  that (i)  such  Person  shall be
eligible under the  provisions of Section 8.07,  without the execution or filing
of any  paper  or any  further  act on the  part of any of the  parties  hereto,
anything  herein to the  contrary  notwithstanding,  and (ii) the Trustee or the
Trust Administrator,  as the case may be, shall deliver an Opinion of Counsel to
the  Seller  and  the  Master   Servicer  to  the  effect   that  such   merger,
consolidation,  sale or transfer will not subject either the Upper-Tier REMIC or
the  Lower-Tier  REMIC  to  federal,  state or local  tax or  cause  either  the
Upper-Tier  REMIC or the Lower-Tier  REMIC to fail to qualify as a REMIC,  which
Opinion of  Counsel  shall be at the sole  expense  of the  Trustee or the Trust
Administrator, as the case may be.

            Section 8.11      Authenticating Agent.

            The Trust  Administrator may appoint an Authenticating  Agent, which
shall  be   authorized  to  act  on  behalf  of  the  Trust   Administrator   in
authenticating Certificates. Wherever reference is made in this Agreement to the
authentication  of  Certificates  by  the  Trust   Administrator  or  the  Trust
Administrator's  countersignature,  such  reference  shall be deemed to  include
authentication on behalf of the Trust Administrator by the Authenticating  Agent
and  a  certificate   of   authentication   executed  on  behalf  of  the  Trust
Administrator  by the  Authenticating  Agent. The  Authenticating  Agent must be
acceptable  to the  Seller  and the Master  Servicer  and must be a  corporation
organized and doing  business  under the laws of the United States of America or
of any state,  having a  principal  office and place of  business in a state and
city acceptable to the Seller and the Master Servicer, having a combined capital
and surplus of at least  $15,000,000,  authorized  under such laws to do a trust
business  and  subject  to  supervision  or  examination  by  federal  or  state
authorities.

            Any corporation into which the Authenticating Agent may be merged or
converted or with which it may be  consolidated,  or any  corporation  resulting
from any merger,  conversion or consolidation to which the Authenticating  Agent
shall be a party, or any corporation succeeding to the corporate agency business
of the  Authenticating  Agent,  shall be the  Authenticating  Agent  without the
execution  or filing of any  paper or any  further  act on the part of the Trust
Administrator or the Authenticating Agent.

            The  Authenticating  Agent may at any time resign by giving at least
30 days'  advance  written  notice  of  resignation  to the  Trustee,  the Trust
Administrator,  the Seller and the Master Servicer.  The Trust Administrator may
at any time terminate the agency of the  Authenticating  Agent by giving written
notice thereof to the Authenticating  Agent, the Seller and the Master Servicer.
Upon receiving a notice of resignation or upon such a termination, or in case at
any time the Authenticating  Agent shall cease to be eligible in accordance with
the  provisions of this Section 8.11,  the Trust  Administrator  promptly  shall
appoint a  successor  Authenticating  Agent,  which shall be  acceptable  to the
Master  Servicer,  and shall  give  written  notice of such  appointment  to the
Seller, and shall mail notice of such appointment to all Certificateholders. Any
successor  Authenticating  Agent upon  acceptance of its  appointment  hereunder
shall become vested with all the rights,  powers, duties and responsibilities of
its  predecessor  hereunder,   with  like  effect  as  if  originally  named  as
Authenticating  Agent  herein.  No  successor   Authenticating  Agent  shall  be
appointed unless eligible under the provisions of this Section 8.11.

            The  Authenticating  Agent shall have no responsibility or liability
for any action taken by it as such at the direction of the Trust  Administrator.
Any  reasonable  compensation  paid  to  the  Authenticating  Agent  shall  be a
reimbursable expense under Section 8.06.

            Section 8.12      Separate Trustees and Co-Trustees.

            The Trustee shall have the power from time to time to appoint one or
more  persons or  corporations  to act either as  co-trustees  jointly  with the
Trustee,  or as  separate  trustees,  for  the  purpose  of  holding  title  to,
foreclosing or otherwise taking action with respect to any Mortgage Loan outside
the state where the  Trustee has its  principal  place of  business,  where such
separate  trustee or  co-trustee  is necessary  or advisable  (or the Trustee is
advised by the Master  Servicer  that such  separate  trustee or  co-trustee  is
necessary  or  advisable)  under  the laws of any  state  in  which a  Mortgaged
Property  is located or for the  purpose of  otherwise  conforming  to any legal
requirement, restriction or condition in any state in which a Mortgaged Property
is located or in any state in which any portion of the Trust  Estate is located.
The Master Servicer shall advise the Trustee when, in its good faith opinion,  a
separate  trustee or  co-trustee  is necessary or  advisable as  aforesaid.  The
separate  trustees or co-trustees so appointed shall be trustees for the benefit
of all of the Certificateholders and shall have such powers, rights and remedies
as shall be specified in the instrument of appointment;  provided, however, that
no such  appointment  shall, or shall be deemed to,  constitute the appointee an
agent of the Trustee.  The Seller and the Master Servicer shall join in any such
appointment,  but such joining shall not be necessary for the  effectiveness  of
such appointment.

            Every separate trustee and co-trustee shall, to the extent permitted
by law, be appointed and act subject to the following provisions and conditions:

               (i)     all powers, duties, obligations and rights conferred upon
      the  Trustee,  in respect of the  receipt,  custody  and payment of moneys
      shall be exercised solely by the Trustee;

               (ii)    all  other  rights,   powers,   duties  and   obligations
      conferred or imposed  upon the Trustee  shall be conferred or imposed upon
      and  exercised or performed  by the Trustee and such  separate  trustee or
      co-trustee  jointly,  except  to the  extent  that  under  any  law of any
      jurisdiction  in which  any  particular  act or acts  are to be  performed
      (whether  as Trustee  hereunder  or as  successor  to the Master  Servicer
      hereunder) the Trustee shall be incompetent or unqualified to perform such
      act or acts, in which event such rights,  powers,  duties and  obligations
      (including the holding of title to the Trust Estate or any portion thereof
      in any  such  jurisdiction)  shall  be  exercised  and  performed  by such
      separate trustee or co-trustee;

               (iii)   no  separate  trustee or  co-trustee  hereunder  shall be
      personally  liable by reason of any act or omission of any other  separate
      trustee or co-trustee hereunder; and

               (iv)    the Trustee may at any time accept the  resignation of or
      remove any  separate  trustee or  co-trustee  so  appointed by it, if such
      resignation or removal does not violate the other terms of this Agreement.

            Any notice,  request or other  writing given to the Trustee shall be
deemed to have been given to each of the then separate trustees and co-trustees,
as  effectively  as if given to each of them.  Every  instrument  appointing any
separate trustee, co-trustee, or custodian shall refer to this Agreement and the
conditions  of this  Article.  Each separate  trustee and  co-trustee,  upon its
acceptance of the trusts conferred, shall be vested with the estates or property
specified in its instrument of appointment,  either jointly with the Trustee, or
separately,  as may be provided  therein,  subject to all the provisions of this
Agreement,  specifically including every provision of this Agreement relating to
the conduct of,  affecting  the liability  of, or affording  protection  to, the
Trustee. Every such instrument shall be furnished to the Trustee.

            Any separate  trustee,  co-trustee,  or custodian  may, at any time,
constitute  the  Trustee,  its agent or  attorney-in-fact,  with full  power and
authority, to the extent not prohibited by law, to do any lawful act under or in
respect of this Agreement on its behalf and in its name. If any separate trustee
or co-trustee shall die, become incapable of acting,  resign or be removed,  all
of its  estates,  properties,  rights,  remedies and trusts shall vest in and be
exercised by the Trustee to the extent permitted by law, without the appointment
of a new or successor trustee.

            No separate  trustee or  co-trustee  hereunder  shall be required to
meet the  terms  of  eligibility  as a  successor  trustee  under  Section  8.07
hereunder and no notice to  Certificateholders  of the appointment thereof shall
be required under Section 8.09 hereof.

            The  Trustee  agrees to  instruct  its  co-trustees,  if any, to the
extent necessary to fulfill such entity's obligations hereunder.

            The Master  Servicer  shall pay the reasonable  compensation  of the
co-trustees to the extent,  and in accordance  with the standards,  specified in
Section 8.06 hereof.

            Section 8.13      Appointment of Custodians.

            The  Trust  Administrator  may at any time on or after  the  Closing
Date,  with the consent of the Master  Servicer  and the Seller,  appoint one or
more  Custodians  to hold all or a portion of the Owner  Mortgage  Loan Files as
agent for the Trust  Administrator,  by  entering  into a  Custodial  Agreement.
Subject to this Article VIII, the Trust Administrator  agrees to comply with the
terms of each  Custodial  Agreement  and to  enforce  the terms  and  provisions
thereof  against the Custodian for the benefit of the  Certificateholders.  Each
Custodian shall be a depository institution subject to supervision by federal or
state  authority,  shall  have  a  combined  capital  and  surplus  of at  least
$10,000,000  and shall be qualified to do business in the  jurisdiction in which
it holds any Owner Mortgage Loan File.  Each Custodial  Agreement may be amended
only as provided in Section 10.01(a).

            Section 8.14      Tax Matters; Compliance with REMIC Provisions.

            (a)   Each of the Trustee,  the Trust  Administrator  and the Master
Servicer  covenants and agrees that it shall  perform its duties  hereunder in a
manner  consistent  with the REMIC  Provisions  and shall not knowingly take any
action or fail to take any action that would (i) affect the determination of the
Trust Estate's  status as two separate  REMICs;  or (ii) cause the imposition of
any federal,  state or local income,  prohibited  transaction,  contribution  or
other tax on either the  Upper-Tier  REMIC,  the  Lower-Tier  REMIC or the Trust
Estate.  The Master Servicer,  or, in the case of any tax return or other action
required by law to be performed directly by the Trust  Administrator,  the Trust
Administrator,  shall (i) prepare or cause to be  prepared,  timely  cause to be
signed  by the  Trustee  and  file or  cause  to be  filed  annual  federal  and
applicable  state and local income tax returns for each of the Upper-Tier  REMIC
and the  Lower-Tier  REMIC  using a calendar  year as the  taxable  year and the
accrual method of accounting;  (ii) in the first such federal tax returns, make,
or  cause  to be  made,  elections  satisfying  the  requirements  of the  REMIC
Provisions, on behalf of the Trust Estate, to treat each of the Upper-Tier REMIC
and the  Lower-Tier  REMIC as a REMIC;  (iii) prepare,  execute and forward,  or
cause to be prepared,  executed and  forwarded,  to the  Certificateholders  all
information reports or tax returns required with respect to the Trust Estate, as
and when required to be provided to the Certificateholders,  and to the Internal
Revenue  Service  and  any  other  relevant  governmental  taxing  authority  in
accordance with the REMIC Provisions and any other applicable federal,  state or
local  laws,  including  without  limitation  information  reports  relating  to
"original  issue  discount"  and "market  discount" as defined in the Code based
upon the issue  prices,  prepayment  assumption  and cash flows  provided by the
Seller to the Trust Administrator and calculated on a monthly basis by using the
issue prices of the Certificates;  (iv) make available information necessary for
the  application  of any tax imposed on  transferors  of residual  interests  to
"disqualified  organizations"  (as  defined in the REMIC  Provisions);  (v) file
Forms 8811 and apply for an Employee  Identification  Number with a Form SS-4 or
any other permissible method and respond to inquiries by  Certificateholders  or
their nominees  concerning  information  returns,  reports or tax returns;  (vi)
maintain (or cause to be maintained by the Servicers)  such records  relating to
the Upper-Tier REMIC and the Lower-Tier REMIC,  including but not limited to the
income, expenses, individual Mortgage Loans (including REO Mortgage Loans, other
assets and  liabilities  of each REMIC,  and the fair market  value and adjusted
basis of the  property  of each REMIC  determined  at such  intervals  as may be
required by the Code,  as may be necessary to prepare the  foregoing  returns or
information reports; (vii) exercise reasonable care not to allow the creation of
any  "interests" in either the Upper-Tier  REMIC or the Lower-Tier  REMIC within
the  meaning  of  Code  Section  860D(a)(2)  other  than  the  interests  in the
Upper-Tier REMIC  represented by the Class A-1, Class A-2, Class A-3, Class A-4,
Class A-5, Class A-6, Class A-7, Class A-9, Class A-10,  Class A-11, Class A-12,
Class A-13,  Class A-14,  Class A-15,  Class A-16, Class A-17, Class A-18, Class
A-19, Class A-20, Class A-21, Class A-22, Class A-PO and Class A-R Certificates,
each Class A-8 Component,  the Class B-1, Class B-2, Class B-3, Class B-4, Class
B-5 and  Class  B-6  Certificates  and the  interests  in the  Lower-Tier  REMIC
represented by the Class A-L1,  Class A-L2,  Class A-L3, Class A-L4, Class A-L5,
Class A-L6,  Class A-L8,  Class A-L10,  Class A-L12,  Class A-L14,  Class A-L16,
Class A-L20, Class A-LPO, Class A-LUR, Class B-L1, Class B-L2, Class B-L3, Class
B-L4, Class B-L5 and Class B-L6 Interests and the Class A-LR Certificate; (viii)
exercise  reasonable  care  not to  allow  the  occurrence  of  any  "prohibited
transactions"  within the  meaning of Code  Section  860F(a),  unless the Master
Servicer  shall have  provided  an Opinion of Counsel to the  Trustee  that such
occurrence would not (a) result in a taxable gain, (b) otherwise  subject either
the Upper-Tier REMIC or Lower-Tier REMIC or the Trust Estate to tax or (c) cause
the Trust  Estate to fail to  qualify  as two  separate  REMICs;  (ix)  exercise
reasonable care not to allow either the Upper-Tier REMIC or the Lower-Tier REMIC
to receive income from the  performance of services or from assets not permitted
under  the REMIC  Provisions  to be held by a REMIC;  (x) pay (on  behalf of the
Upper-Tier REMIC or the Lower-Tier  REMIC) the amount of any federal income tax,
including, without limitation, prohibited transaction taxes, taxes on net income
from foreclosure  property,  and taxes on certain contributions to a REMIC after
the Startup Day,  imposed on the Upper-Tier  REMIC or Lower-Tier  REMIC,  as the
case may be, when and as the same shall be due and payable (but such  obligation
shall not  prevent  the Master  Servicer  or any other  appropriate  Person from
contesting  any such tax in  appropriate  proceedings  and shall not prevent the
Master Servicer from withholding or depositing payment of such tax, if permitted
by law,  pending  the  outcome of such  proceedings);  and (xi) if  required  or
permitted by the Code and  applicable  law, act as "tax matters  person" for the
Upper-Tier  REMIC  or the  Lower-Tier  REMIC  within  the  meaning  of  Treasury
Regulations Section 1.860F-4(d), and the Master Servicer is hereby designated as
agent of the Class A-R and Class A-LR Certificateholders for such purpose (or if
the Master Servicer is not so permitted,  the Holders of the Class A-R and Class
A-LR  Certificates  shall be tax matters  persons in  accordance  with the REMIC
Provisions).  The Master Servicer shall be entitled to be reimbursed pursuant to
Section  3.02 for any taxes paid by it pursuant  to clause (x) of the  preceding
sentence,  except to the extent  that such taxes are  imposed as a result of the
bad faith, willful misfeasance or gross negligence of the Master Servicer in the
performance of its obligations hereunder. The Trustee's sole duties with respect
to the  Upper-Tier  REMIC  and  Lower  Tier  REMIC  are to sign the tax  returns
referred to in clause (i) of the second  preceding  sentence  and to comply with
written directions from the Master Servicer or the Trust Administrator.

      In order to enable the Master  Servicer,  the Trust  Administrator  or the
Trustee,  as the case may be, to  perform  its  duties as set forth  above,  the
Seller shall provide, or cause to be provided, to the Master Servicer within ten
days after the Closing  Date all  information  or data that the Master  Servicer
determines to be relevant for tax purposes to the valuations and offering prices
of the Certificates, including, without limitation, the price, yield, prepayment
assumption  and  projected  cash  flows of each  Class of  Certificates  and the
Mortgage  Loans in the  aggregate.  Thereafter,  the Seller shall provide to the
Master Servicer,  the Trust  Administrator  or the Trustee,  as the case may be,
promptly upon request therefor, any such additional information or data that the
Master Servicer, the Trust Administrator or the Trustee, as the case may be, may
from time to time request in order to enable the Master  Servicer to perform its
duties as set forth above.  The Seller hereby  indemnifies the Master  Servicer,
the Trust  Administrator  or the  Trustee,  as the case may be, for any  losses,
liabilities,  damages,  claims or  expenses  of the Master  Servicer,  the Trust
Administrator or the Trustee arising from any errors or  miscalculations  by the
Master Servicer, the Trust Administrator or the Trustee pursuant to this Section
that  result  from any  failure  of the  Seller  to  provide,  or to cause to be
provided,  accurate  information  or  data to the  Master  Servicer,  the  Trust
Administrator or the Trustee,  as the case may be, on a timely basis. The Master
Servicer hereby indemnifies the Seller, the Trust  Administrator and the Trustee
for any losses,  liabilities,  damages,  claims or  expenses of the Seller,  the
Trust  Administrator or the Trustee arising from the Master  Servicer's  willful
misfeasance,  bad faith or gross  negligence  in  preparing  any of the federal,
state and local tax  returns of the  Upper-Tier  REMIC and  Lower-Tier  REMIC as
described above. In the event that the Trust  Administrator  prepares any of the
federal, state and local tax returns of the Upper-Tier REMIC or Lower-Tier REMIC
as described above, the Trust  Administrator  hereby indemnifies the Seller, the
Master Servicer and the Trustee for any losses, liabilities,  damages, claims or
expenses of the Seller,  the Master  Servicer  or the Trustee  arising  from the
Trust Administrator's willful misfeasance, bad faith or negligence in connection
with such preparation.

            (b)   Notwithstanding  anything in this  Agreement to the  contrary,
each of the Master Servicer,  the Trust  Administrator and the Trustee shall pay
from its own funds, without any right of reimbursement  therefor,  the amount of
any costs,  liabilities  and expenses  incurred by the Trust Estate  (including,
without limitation,  any and all federal,  state or local taxes, including taxes
imposed on "prohibited transactions" within the meaning of the REMIC Provisions)
if and to the extent  that such costs,  liabilities  and  expenses  arise from a
failure of the Master  Servicer,  the Trust  Administrator  or the  Trustee  to,
respectively, perform its obligations under this Section 8.14.

            Section 8.15      Monthly Advances.

            In the event that Norwest  Mortgage fails to make a Periodic Advance
required to be made pursuant to the Norwest Servicing Agreement on or before the
Distribution  Date,  the Trust  Administrator  shall make a Periodic  Advance as
required by Section  3.03 hereof;  provided,  however,  the Trust  Administrator
shall not be required to make such Periodic  Advances if prohibited by law or if
it determines that such Periodic Advance would be a Nonrecoverable Advance. With
respect  to those  Periodic  Advances  which  should  have been made by  Norwest
Mortgage,  the  Trust  Administrator  shall be  entitled,  pursuant  to  Section
3.02(a)(i),  (ii) or (v) hereof,  to be reimbursed from the Certificate  Account
for Periodic Advances and Nonrecoverable Advances made by it.

            Section 8.16      Trustee Covenants Concerning Year 2000 Compliance.

            The Trustee  covenants that it is working to modify its computer and
other  systems  used  in the  performance  of its  duties  as  trustee  for  the
Certificates to operate in a manner such that, on and after January 1, 2000, the
Trustee can perform its duties in accordance with the terms of this Agreement.

            Section 8.17      Trust Administrator Covenants Concerning Year 2000
Compliance.

            The Trust  Administrator  covenants that it is working to modify its
computer  and  other  systems  used in the  performance  of its  duties as trust
administrator  for the  Certificates  to operate in a manner  such that,  on and
after  January  1,  2000,  the Trust  Administrator  can  perform  its duties in
accordance with the terms of this Agreement.


<PAGE>






                                   ARTICLE IX

                                   TERMINATION

            Section 9.01      Termination   upon   Purchase  by  the  Seller  or
Liquidation of All Mortgage Loans.

            Subject  to   Section   9.02,   the   respective   obligations   and
responsibilities of the Seller, the Master Servicer, the Trust Administrator and
the Trustee created hereby (other than the obligation of the Trust Administrator
to make certain payments after the Final Distribution Date to Certificateholders
and the obligation of the Master Servicer to send certain notices as hereinafter
set forth and the tax reporting obligations under Sections 4.05 and 8.14 hereof)
shall  terminate  upon  the  last  action  required  to be  taken  by the  Trust
Administrator  on the  Final  Distribution  Date  pursuant  to this  Article  IX
following  the earlier of (i) the purchase by the Seller of all  Mortgage  Loans
and all property acquired in respect of any Mortgage Loan remaining in the Trust
Estate at a price equal to the sum of (x) 100% of the unpaid  principal  balance
of each  Mortgage  Loan  (other  than any REO  Mortgage  Loan)  as of the  Final
Distribution  Date,  and (y) the fair  market  value of the  Mortgaged  Property
related to any REO Mortgage Loan (as determined by the Master Servicer as of the
close of business on the third  Business Day next  preceding the date upon which
notice of any such  termination is furnished to  Certificateholders  pursuant to
the third paragraph of this Section 9.01),  plus any accrued and unpaid interest
through the last day of the month  preceding  the month of such  purchase at the
applicable Mortgage Interest Rate less any Fixed Retained Yield on each Mortgage
Loan  (including  any REO  Mortgage  Loan) and (ii) the final  payment  or other
liquidation  (or any advance with  respect  thereto) of the last  Mortgage  Loan
remaining in the Trust Estate  (including  for this purpose the discharge of any
Mortgagor  under a defaulted  Mortgage Loan on which a Servicer is not obligated
to foreclose due to environmental impairment) or the disposition of all property
acquired upon  foreclosure  or deed in lieu of foreclosure of any Mortgage Loan;
provided,  however,  that in no event shall the trust  created  hereby  continue
beyond the  expiration  of 21 years from the death of the last  survivor  of the
descendants  of Joseph P. Kennedy,  the late  ambassador of the United States to
the Court of St. James, living on the date hereof.

            The right of the  Seller  to  purchase  all the  assets of the Trust
Estate pursuant to clause (i) of the preceding  paragraph are subject to Section
9.02 and conditioned upon the Pool Scheduled  Principal  Balance of the Mortgage
Loans as of the Final  Distribution Date being less than the amount set forth in
Section 11.22. In the case of any purchase by the Seller pursuant to said clause
(i),  the Seller  shall  provide to the Trust  Administrator  the  certification
required by Section 3.04 and the Trust  Administrator  and the Custodian  shall,
promptly  following  payment of the  purchase  price,  release to the Seller the
Owner Mortgage Loan Files pertaining to the Mortgage Loans being purchased.

            Notice of any termination,  specifying the Final  Distribution  Date
(which shall be a date that would  otherwise be a Distribution  Date) upon which
the   Certificateholders   may  surrender   their   Certificates  to  the  Trust
Administrator for payment of the final  distribution and cancellation,  shall be
given promptly by the Master Servicer (if it is exercising its right to purchase
the  assets of the Trust  Estate)  or by the Trust  Administrator  (in any other
case) by letter to  Certificateholders  mailed not earlier  than the 15th day of
the month preceding the month of such final  distribution and not later than the
twentieth day of the month of such final  distribution  specifying (A) the Final
Distribution Date upon which final payment of the Certificates will be made upon
presentation  and surrender of Certificates at the office or agency of the Trust
Administrator  therein designated,  (B) the amount of any such final payment and
(C) that the Record Date otherwise  applicable to such  Distribution Date is not
applicable,  payments  being made (except in the case of any Class A Certificate
surrendered  on a prior  Distribution  Date  pursuant to Section 4.01) only upon
presentation  and surrender of the  Certificates  at the office or agency of the
Trust  Administrator  therein specified.  If the Master Servicer is obligated to
give notice to Certificateholders as aforesaid, it shall give such notice to the
Trust  Administrator  and the  Certificate  Registrar at the time such notice is
given to  Certificateholders.  In the event  such  notice is given by the Master
Servicer,  the Master  Servicer shall deposit in the  Certificate  Account on or
before the Final  Distribution  Date in  immediately  available  funds an amount
equal to the purchase price for the assets of the Trust Estate computed as above
provided.  Failure to give notice of termination  as described  herein shall not
entitle a  Certificateholder  to any interest beyond the interest payable on the
Final Distribution Date.

            Upon  presentation  and  surrender  of the  Certificates,  the Trust
Administrator shall cause to be distributed to  Certificateholders  on the Final
Distribution  Date in proportion  to their  respective  Percentage  Interests an
amount equal to (i) as to the Classes of Class A  Certificates,  the  respective
Principal  Balance  together with any related Class A Unpaid Interest  Shortfall
and one month's  interest in an amount equal to the respective  Interest Accrual
Amount, (ii) as to the Classes of Class B Certificates, the respective Principal
Balance  together  with any related  Class B Unpaid  Interest  Shortfall and one
month's  interest in an amount equal to the respective  Interest  Accrual Amount
and (iii) as to the Class A-R and Class A-LR Certificates,  the amounts, if any,
which  remain  on  deposit  in  the  Upper-Tier   Certificate  Account  and  the
Certificate  Account,  respectively (other than amounts retained to meet claims)
after  application  pursuant to clauses (i), (ii) and (iii) above and payment to
the Master Servicer of any amounts it is entitled as  reimbursement or otherwise
hereunder. Such amount shall be distributed in respect of interest and principal
in respect of the  Uncertificated  Lower-Tier  Interests  in the same amounts as
distributed  to their  Corresponding  Upper-Tier  Class or Classes in the manner
specified in Section  4.01(a)(ii).  Notwithstanding the foregoing,  if the price
paid pursuant to clause (i) of the first  paragraph of this Section 9.01,  after
reimbursement to the Servicers,  the Master Servicer and the Trust Administrator
of any Periodic  Advances,  is insufficient to pay in full the amounts set forth
in clauses  (i),  (ii) and (iii) of this  paragraph,  then any  shortfall in the
amount  available for distribution to  Certificateholders  shall be allocated in
reduction of the amounts otherwise  distributable on the Final Distribution Date
in the same manner as Realized Losses are allocated pursuant to Sections 4.02(b)
and 4.02(g) hereof. Such distribution on the Final Distribution Date shall be in
lieu of the distribution otherwise required to be made on such Distribution Date
in respect of each Class of Certificates.

            In the event that all of the Certificateholders  shall not surrender
their  Certificates  for final  payment and  cancellation  within  three  months
following the Final  Distribution  Date, the Trust  Administrator  shall on such
date cause all funds,  if any, in the  Certificate  Account not  distributed  in
final distribution to  Certificateholders to be withdrawn therefrom and credited
to the  remaining  Certificateholders  by  depositing  such  funds in a separate
escrow  account  for the  benefit  of such  Certificateholders,  and the  Master
Servicer (if it exercised  its right to purchase the assets of the Trust Estate)
or the Trust  Administrator  (in any other  case)  shall  give a second  written
notice to the remaining  Certificateholders  to surrender their Certificates for
cancellation and receive the final distribution with respect thereto.  If within
three months after the second  notice all the  Certificates  shall not have been
surrendered  for  cancellation,  the Trust  Administrator  may take  appropriate
steps,  or may  appoint  an agent to take  appropriate  steps,  to  contact  the
remaining Certificateholders concerning surrender of their Certificates, and the
cost thereof shall be paid out of the funds on deposit in such escrow account.

            Section 9.02      Additional Termination Requirements.

            In the event of a termination  of the Trust Estate upon the exercise
by the Seller of its  purchase  option as  provided in Section  9.01,  the Trust
Estate  shall  be  terminated  in  accordance  with  the  following   additional
requirements,  unless the Trust Administrator has received an Opinion of Counsel
to the  effect  that any  other  manner of  termination  (i) will  constitute  a
"qualified  liquidation"  of the Trust Estate within the meaning of Code Section
860F(a)(4)(A)  and (ii) will not  subject  either  the  Upper-Tier  REMIC or the
Lower-Tier  REMIC to federal tax or cause the Trust Estate to fail to qualify as
two separate REMICs at any time that any Certificates are outstanding:

               (i)     The notice  given by the Master  Servicer  under  Section
      9.01 shall provide that such notice  constitutes the adoption of a plan of
      complete  liquidation of the Upper-Tier  REMIC and Lower-Tier  REMIC as of
      the date of such notice (or, if earlier,  the date on which the first such
      notice is mailed to  Certificateholders).  The Master  Servicer shall also
      specify such date in a statement  attached to the final tax returns of the
      Upper-Tier REMIC and Lower-Tier REMIC; and

               (ii)    At or  after  the  time  of  adoption  of  such a plan of
      complete  liquidation and at or prior to the Final  Distribution Date, the
      Trust  Administrator  shall sell all of the assets of the Trust  Estate to
      the Seller for cash at the  purchase  price  specified in Section 9.01 and
      shall  distribute  such cash within 90 days of such adoption in the manner
      specified in Section 9.01.


<PAGE>






                                    ARTICLE X

                            MISCELLANEOUS PROVISIONS

            Section 10.01     Amendment.

            (a)   This Agreement or any Custodial  Agreement may be amended from
time to time by the Seller, the Master Servicer, the Trust Administrator and the
Trustee and with respect to amendments  affecting the rights or  obligations  of
Financial Security, with the consent of Financial Security,  without the consent
of any of the Certificateholders,  (i) to cure any ambiguity or mistake, (ii) to
correct or supplement any provisions herein or therein which may be inconsistent
with any other provisions herein or therein,  (iii) to modify,  eliminate or add
to any of its  provisions  to such extent as shall be  necessary to maintain the
qualification  of the Trust Estate as two separate  REMICs at all times that any
Certificates  are outstanding or to avoid or minimize the risk of the imposition
of any federal tax on the Trust Estate,  the Upper-Tier  REMIC or the Lower-Tier
REMIC  pursuant  to the Code that  would be a claim  against  the Trust  Estate,
provided  that (a) the  Trustee  and the Trust  Administrator  have  received an
Opinion of Counsel to the effect that such action is  necessary  or desirable to
maintain such  qualification  or to avoid or minimize the risk of the imposition
of any such tax and (b) such action  shall not, as  evidenced by such Opinion of
Counsel,  adversely  affect  in  any  material  respect  the  interests  of  any
Certificateholder,  (iv) to change the timing and/or nature of deposits into the
Upper-Tier  Certificate  Account and Certificate  Account provided that (a) such
change shall not, as evidenced by an Opinion of Counsel, adversely affect in any
material  respect the  interests  of any  Certificateholder  and (b) such change
shall not  adversely  affect  the  then-current  rating of the  Certificates  as
evidenced by a letter from each Rating  Agency to such effect  (without,  in the
case of the Class A-12  Certificates,  giving effect to the guaranty provided by
Financial  Security),  (v) to  modify,  eliminate  or add to the  provisions  of
Section  5.02  or  any  other  provisions  hereof  restricting  transfer  of the
Certificates, provided that the Master Servicer for purposes of Section 5.02 has
determined in its sole discretion that any such  modifications to this Agreement
will neither  adversely affect the rating on the Certificates nor give rise to a
risk that  either the  Upper-Tier  REMIC or the  Lower-Tier  REMIC or any of the
Certificateholders  will  be  subject  to  a  tax  caused  by  a  transfer  to a
non-permitted  transferee and (vi) to make any other  provisions with respect to
matters or questions  arising under this Agreement or such  Custodial  Agreement
which  shall  not  be  materially  inconsistent  with  the  provisions  of  this
Agreement,  provided  that such action  shall not, as evidenced by an Opinion of
Counsel,  adversely  affect  in  any  material  respect  the  interests  of  any
Certificateholder.

            This  Agreement or any Custodial  Agreement may also be amended from
time to time by the Seller, the Master Servicer, the Trust Administrator and the
Trustee with the consent of Financial  Security (only with respect to amendments
affecting the rights or  obligations  of Financial  Security) and the Holders of
Certificates  evidencing in the aggregate not less than 66-2/3% of the aggregate
Voting Interests of each Class of Certificates  affected thereby for the purpose
of adding any provisions to or changing in any manner or eliminating  any of the
provisions of this Agreement or such Custodial  Agreement or of modifying in any
manner  the rights of the  Holders  of  Certificates  of such  Class;  provided,
however, that no such amendment shall (i) reduce in any manner the amount of, or
delay the timing of,  payments  received on Mortgage Loans which are required to
be  distributed  on any  Certificate  without  the consent of the Holder of such
Certificate,  (ii) adversely  affect in any material respect the interest of the
Holders of  Certificates  of any Class in a manner  other than as  described  in
clause (i) hereof without the consent of Holders of  Certificates  of such Class
evidencing, as to such Class, Voting Interests aggregating not less than 66-2/3%
or (iii)  reduce  the  aforesaid  percentage  of  Certificates  of any Class the
Holders of which are  required  to consent to any such  amendment,  without  the
consent of the Holders of all Certificates of such Class then outstanding.

            Notwithstanding  any contrary  provision of this Agreement,  neither
the Trustee nor the Trust  Administrator  shall consent to any amendment to this
Agreement  unless it shall  have  first  received  an  Opinion of Counsel to the
effect that such amendment  will not subject either the Upper-Tier  REMIC or the
Lower-Tier  REMIC to tax or cause either the Upper-Tier  REMIC or the Lower-Tier
REMIC  to fail to  qualify  as a REMIC at any time  that  any  Certificates  are
outstanding.

            Promptly after the execution of any amendment  requiring the consent
of   Certificateholders,   the  Trust   Administrator   shall  furnish   written
notification of the substance of such amendment to each Certificateholder.

            It shall not be  necessary  for the  consent  of  Certificateholders
under this  Section  10.01(a) to approve  the  particular  form of any  proposed
amendment,  but it  shall  be  sufficient  if such  consent  shall  approve  the
substance  thereof.  The manner of obtaining such consents and of evidencing the
authorization of the execution thereof by Certificateholders shall be subject to
such reasonable regulations as the Trust Administrator may prescribe.

            (b)   Notwithstanding any contrary provision of this Agreement,  the
Master  Servicer may,  from time to time,  amend  Schedule I hereto  without the
consent  of any  Certificateholder,  the Trust  Administrator,  the  Trustee  or
Financial Security; provided, however, (i) that such amendment does not conflict
with any provisions of the related  Servicing  Agreement,  (ii) that the related
Servicing  Agreement  provides for the  remittance  of each type of  Unscheduled
Principal  Receipts received by such Servicer during the Applicable  Unscheduled
Principal  Receipt Period (as so amended) related to each  Distribution  Date to
the  Master  Servicer  no later  than the  24th day of the  month in which  such
Distribution Date occurs and (iii) that such amendment is for the purpose of:

               (i)     changing the  Applicable  Unscheduled  Principal  Receipt
      Period for Exhibit F-1 Mortgage  Loans to a Mid-Month  Receipt Period with
      respect to all Unscheduled Principal Receipts; or

               (ii)    changing the  Applicable  Unscheduled  Principal  Receipt
      Period for all  Mortgage  Loans  serviced  by any  Servicer to a Mid-Month
      Receipt Period with respect to Full Unscheduled  Principal Receipts and to
      a Prior Month Receipt Period with respect to Partial Unscheduled Principal
      Receipts.

            A copy of any  amendment  to  Schedule  I pursuant  to this  Section
10.01(b) shall be promptly forwarded to the Trust Administrator.

            Section 10.02     Recordation of Agreement.

            This  Agreement  (or  an  abstract  hereof,  if  acceptable  to  the
applicable recording office) is subject to recordation in all appropriate public
offices  for  real  property  records  in all  the  towns  or  other  comparable
jurisdictions in which any or all of the Mortgaged Properties are situated,  and
in any other  appropriate  public office or elsewhere,  such  recordation  to be
effected by the Master  Servicer  and at its expense on  direction  by the Trust
Administrator,  but only upon direction  accompanied by an Opinion of Counsel to
the  effect  that such  recordation  materially  and  beneficially  affects  the
interests of the Certificateholders.

            For the purpose of facilitating the recordation of this Agreement as
herein  provided  and  for  other  purposes,  this  Agreement  may  be  executed
simultaneously in any number of counterparts,  each of which  counterparts shall
be deemed to be an original,  and such counterparts shall constitute but one and
the same instrument.

            Section 10.03     Limitation on Rights of Certificateholders.

            The death or incapacity of any  Certificateholder  shall not operate
to   terminate   this   Agreement  or  the  Trust   Estate,   nor  entitle  such
Certificateholder's  legal  representatives  or heirs to claim an  accounting or
take any action or  proceeding in any court for a partition or winding up of the
Trust Estate,  nor otherwise  affect the rights,  obligations and liabilities of
the parties hereto or any of them.

            Except as otherwise expressly provided herein, no Certificateholder,
solely by virtue of its status as a  Certificateholder,  shall have any right to
vote or in any manner  otherwise  control the  operation  and  management of the
Trust Estate,  or the  obligations  of the parties  hereto,  nor shall  anything
herein set forth, or contained in the terms of the Certificates, be construed so
as to constitute the Certificateholders from time to time as partners or members
of an association, nor shall any Certificateholder be under any liability to any
third  person by reason of any action  taken by the  parties  to this  Agreement
pursuant to any provision hereof.

            No   Certificateholder,   solely  by   virtue   of  its   status  as
Certificateholder,  shall  have  any  right  by  virtue  or by  availing  of any
provision of this  Agreement  to institute  any suit,  action or  proceeding  in
equity or at law upon or under or with  respect to this  Agreement,  unless such
Holder  previously shall have given to the Trust  Administrator a written notice
of default and of the continuance thereof, as hereinbefore  provided, and unless
also the  Holders  of  Certificates  evidencing  not less than 25% of the Voting
Interest  represented by all  Certificates  shall have made written request upon
the Trust  Administrator to institute such action, suit or proceeding in its own
name as Trust  Administrator  hereunder  and  shall  have  offered  to the Trust
Administrator  such  reasonable  indemnity  as it may require  against the cost,
expenses  and  liabilities  to be  incurred  therein or  thereby,  and the Trust
Administrator,  for 60 days after its receipt of such notice,  request and offer
of indemnity, shall have neglected or refused to institute any such action, suit
or proceeding;  it being understood and intended, and being expressly covenanted
by each  Certificateholder  with  every  other  Certificateholder  and the Trust
Administrator,  that no one or more Holders of Certificates shall have any right
in any  manner  whatever  by  virtue or by  availing  of any  provision  of this
Agreement to affect, disturb or prejudice the rights of the Holders of any other
of such Certificates, or to obtain or seek to obtain priority over or preference
to any other such Holder,  or to enforce any right under this Agreement,  except
in the manner herein provided and for the benefit of all Certificateholders. For
the protection and enforcement of the provisions of this Section, each and every
Certificateholder  and the Trust  Administrator shall be entitled to such relief
as can be given either at law or in equity.

            Section 10.04     Governing Law; Jurisdiction.

            This Agreement shall be construed in accordance with the laws of the
State of New York  (without  regard to  conflicts of laws  principles),  and the
obligations, rights and remedies of the parties hereunder shall be determined in
accordance with such laws.

            Section 10.05     Notices.

            All  demands,  notices  and  communications  hereunder  shall  be in
writing and shall be deemed to have been duly given if  personally  delivered at
or mailed by certified or registered mail,  return receipt  requested (i) in the
case of the Seller,  to Norwest Asset Securities  Corporation,  7485 New Horizon
Way,  Frederick,  Maryland 21703,  Attention:  Chief Executive Officer,  or such
other  address as may hereafter be furnished to the Master  Servicer,  the Trust
Administrator and the Trustee in writing by the Seller,  (ii) in the case of the
Master  Servicer,  to Norwest Bank  Minnesota,  National  Association,  7485 New
Horizon Way, Frederick,  Maryland 21703, Attention: Vice President or such other
address as may  hereafter  be furnished to the Seller and the Trustee in writing
by the Master Servicer, (iii) in the case of the Trustee, to the Corporate Trust
Office,  (iv) in the case of the Trust  Administrator,  to the  Corporate  Trust
Office,  or such other  address as may  hereafter be furnished to the Seller and
the Master  Servicer  in writing by the Trustee or the Trust  Administrator,  in
each case Attention: Corporate Trust Department and (v) in the case of Financial
Security, to Financial Security Assurance,  Inc., 350 Park Avenue, New York, New
York 10022, Attention:  Senior Vice President,  Transaction Oversight re: NASCOR
Series   1999-18;   Confirmation:   212-826-0100;   Telecopy:   212-339-3518  or
212-339-3529  (in each case in which notice or other  communication to Financial
Security  refers to an Event of  Default  or a claim  under  the  policy or with
respect to which  failure on the part of Financial  Security to respond shall be
deemed to constitute consent or acceptance,  then a copy of such notice or other
communication  should also be sent to the  attention of the General  Counsel and
shall be marked to indicate "URGENT MATERIAL  ENCLOSED".  Any notice required or
permitted  to be mailed  to a  Certificateholder  shall be given by first  class
mail, postage prepaid, at the address of such Holder as shown in the Certificate
Register.  Any notice mailed or transmitted  within the time  prescribed in this
Agreement shall be conclusively presumed to have been duly given, whether or not
the addressee receives such notice,  provided,  however, that any demand, notice
or  communication  to or  upon  the  Seller,  the  Master  Servicer,  the  Trust
Administrator or the Trustee shall not be effective until received.

            For all  purposes  of  this  Agreement,  in the  absence  of  actual
knowledge by an officer of the Master Servicer, the Master Servicer shall not be
deemed to have  knowledge  of any act or failure to act of any  Servicer  unless
notified  thereof in  writing  by the  Trustee,  the Trust  Administrator,  such
Servicer or a Certificateholder.

            Section 10.06     Severability of Provisions.

            If any one or more of the covenants, agreements, provisions or terms
of this Agreement  shall be for any reason  whatsoever  held invalid,  then such
covenants,  agreements,  provisions or terms shall be deemed  severable from the
remaining covenants, agreements, provisions or terms of this Agreement and shall
in no way affect the validity or  enforceability of the other provisions of this
Agreement or of the Certificates or the rights of the Holders thereof.

            Section 10.07     Special   Notices  to  Rating   Agencies   and
Financial Security.

            (a)   The  Trust  Administrator  shall  give  prompt  notice to each
Rating Agency and Financial  Security of the  occurrence of any of the following
events of which it has notice:

               (i)     any  amendment  to this  Agreement  pursuant  to  Section
      10.01(a);

               (ii)    any sale or transfer of the Class B Certificates pursuant
      to Section 5.02 to an affiliate of the Seller;

               (iii)   any  assignment by the Master  Servicer of its rights and
      delegation of its duties pursuant to Section 6.06;

               (iv)    any  resignation  of  the  Master  Servicer  pursuant  to
      Section 6.04;

               (v)     the occurrence of any of the Events of Default  described
      in Section 7.01;

               (vi)    any notice of  termination  given to the Master  Servicer
      pursuant to Section 7.01;

               (vii)   the  appointment of any successor to the Master  Servicer
      pursuant to Section 7.05; or

               (viii)  the making of a final payment pursuant to Section 9.01.

            (b)   The Master  Servicer  shall give prompt  notice to each Rating
Agency and Financial Security of the occurrence of any of the following events:

               (i)     the appointment of a Custodian pursuant to Section 2.02;

               (ii)    the  resignation  or removal of the  Trustee or the Trust
      Administrator pursuant to Section 8.08;

               (iii)   the   appointment   of  a  successor   trustee  or  trust
      administrator pursuant to Section 8.09; or

               (iv)    the  sale,  transfer  or  other  disposition  in a single
      transaction of 50% or more of the equity interests in the Master Servicer.

            (c)   The Master  Servicer  shall  deliver to each Rating Agency and
Financial Security:

               (i)     reports prepared pursuant to Section 3.05; and

               (ii)    statements prepared pursuant to Section 4.04.

            Section 10.08     Covenant of Seller.

            The  Seller  shall not amend  Article  Third of its  Certificate  of
Incorporation without the prior written consent of each Rating Agency rating the
Certificates.

            Section 10.09     Recharacterization.

            The Parties  intend the  conveyance  by the Seller to the Trustee of
all of its right,  title and interest in and to the Mortgage  Loans  pursuant to
this Agreement to constitute a purchase and sale and not a loan. Notwithstanding
the  foregoing,  to the extent that such  conveyance is held not to constitute a
sale under applicable law, it is intended that this Agreement shall constitute a
security  agreement under  applicable law and that the Seller shall be deemed to
have  granted to the Trustee a first  priority  security  interest in all of the
Seller's right, title and interest in and to the Mortgage Loans.




<PAGE>






                                   ARTICLE XI

                             TERMS FOR CERTIFICATES

            Section 11.01     Class A Fixed Pass-Through Rate.

            The Class A Fixed Pass-Through Rate is 6.50% per annum.

            Section 11.02     Cut-Off Date.

            The Cut-Off Date for the Certificates is June 1, 1999.

            Section 11.03     Cut-Off Date Aggregate Principal Balance.

            The Cut-Off Date Aggregate Principal Balance is $850,069,757.10

            Section 11.04     Original Class A Percentage.

            The Original Class A Percentage is 95.99373117%

            Section 11.05     Original  Principal  Balances  of the  Classes  of
Class A Certificates and Components.

            As to the following  Classes of Class A Certificates and Components,
the  Principal  Balance of such Class or  Component as of the Cut-Off  Date,  as
follows:
                                            Original
                  Class                 Principal Balance
                  -----                 -----------------
            Class A-1                   $ 71,229,000.00
            Class A-2                   $ 53,772,000.00
            Class A-3                   $  2,831,000.00
            Class A-4                   $103,499,000.00
            Class A-5                   $  4,550,000.00
            Class A-6                   $ 25,165,473.00
            Class A-7                   $  9,679,027.00
            Class A-9                   $    686,500.00
            Class A-10                  $335,500,000.00
            Class A-11                  $  7,286,000.00
            Class A-12                  $ 24,073,000.00
            Class A-13                  $  1,106,000.00
            Class A-14                  $ 11,943,176.00
            Class A-15                  $  3,096,379.00
            Class A-16                  $ 15,243,000.00
            Class A-17                  $ 37,144,000.00
            Class A-18                  $ 19,196,370.00
            Class A-19                  $ 29,547,000.00
            Class A-22                  $    506,500.00
            Class A-PO                  $  1,328,709.03
            Class A-R                   $        100.00
            Class A-LR                  $        100.00

                  Component
                  ---------
            Class A-8 Accrual           $ 40,064,000.00
            Class A-20A                 $ 14,730,945.00
            Class A-20B                 $  3,889,630.00

      Section 11.05(a).       Original  Class A-21 Notional  Amount and Original
Class A-8 IO Notional Amounts.

            The Original Class A-21 Notional Amount is $ 293,134.62

            The  Original  Class  A-8A  IO  Component   Notional   Amount  is  $
71,229,000.00

            The  Original  Class  A-8B  IO  Component   Notional   Amount  is  $
53,772,000.00

            The  Original  Class  A-8C  IO  Component   Notional   Amount  is  $
2,831,000.00

            The  Original  Class  A-8D  IO  Component   Notional   Amount  is  $
103,499,000.00

            Section 11.06     Original Class A Non-PO Principal Balance.

            The Original Class A Non-PO Principal Balance is $814,738,200.00.

            Section 11.07     Original Subordinated Percentage.

            The Original Subordinated Percentage is 4.00626883%.

            Section 11.08     Original Class B-1 Percentage.

            The Original Class B-1 Percentage is 2.25345528%.

            Section 11.09     Original Class B-2 Percentage.

            The Original Class B-2 Percentage is 0.70115614%.

            Section 11.10     Original Class B-3 Percentage.

            The Original Class B-3 Percentage is 0.35051916%.

            Section 11.11     Original Class B-4 Percentage.

            The Original Class B-4 Percentage is 0.30044500%.

            Section 11.12     Original Class B-5 Percentage.

            The Original Class B-5 Percentage is 0.17025216%.

            Section 11.13     Original Class B-6 Percentage.

            The Original Class B-6 Percentage is 0.23044108%.

            Section 11.14     Original Class B Principal Balance.

            The Original Class B Principal Balance is $34,002,848.07

            Section 11.15     Original  Principal  Balances  of the  Classes  of
Class B Certificates.

            As to the following  Classes of Class B  Certificate,  the Principal
Balance of such Class as of the Cut-Off Date, is as follows:

                                                 Original
                  Class                     Principal Balance
                  -----                     -----------------
              Class B-1                    $ 19,126,000.00
              Class B-2                    $  5,951,000.00
              Class B-3                    $  2,975,000.00
              Class B-4                    $  2,550,000.00
              Class B-5                    $  1,445,000.00
              Class B-6                    $  1,955,848.07

            Section 11.16     Original Class B-1 Fractional Interest.

            The Original Class B-1 Fractional Interest is 1.75281354%.

            Section 11.17     Original Class B-2 Fractional Interest.

            The Original Class B-2 Fractional Interest is 1.05165740%.

            Section 11.18     Original Class B-3 Fractional Interest.

            The Original Class B-3 Fractional Interest is 0.70113824%.

            Section 11.19     Original Class B-4 Fractional Interest.

            The Original Class B-4 Fractional Interest is 0.40069324%.

            Section 11.20     Original Class B-5 Fractional Interest.

            The Original Class B-5 Fractional Interest is 0.23044108%.

            Section 11.21     Closing Date.

            The Closing Date is June 29, 1999.

            Section 11.22     Right to Purchase.

            The  right of the  Seller  to  purchase  all of the  Mortgage  Loans
pursuant to Section 9.01 hereof  shall be  conditioned  upon the Pool  Scheduled
Principal Balance of the Mortgage Loans being less than  $85,006,975.71  (10% of
the Cut-Off Date Aggregate Principal Balance) at the time of any such purchase.

            Section 11.23     Wire Transfer Eligibility.

            With respect to the Class A (other than the Class A-21,  Class A-PO,
Class A-R and Class A-LR Certificates) and the Class B Certificates, the minimum
Denomination  eligible for wire transfer on each  Distribution Date is $500,000.
With  respect  to the  Class  A-21 and  Class  A-PO  Certificates,  the  minimum
Denomination  eligible  for  wire  transfer  on each  Distribution  Date is 100%
Percentage Interest.  The Class A-R and Class A-LR Certificates are not eligible
for wire transfer.

            Section 11.24     Single Certificate.

            A Single  Certificate for each Class of Class A Certificates  (other
than  the  Class  A-12,  Class  A-21,  Class  A-PO,  Class  A-R and  Class  A-LR
Certificates)  and each Class of the Class B Certificates  (other than the Class
B-4, Class B-5 and Class B-6 Certificates) represents a $100,000 Denomination. A
Single  Certificate  for  the  Class  A-12  Certificates   represents  a  $1,000
Denomination.  A Single Certificate for the Class A-21 Certificates represents a
$293,134.62 Denomination.  A Single Certificate for the Class A-R and Class A-LR
Certificates represents a $100 Denomination.  A Single Certificate for the Class
B-4, Class B-5 and Class B-6 Certificates represents a $250,000 Denomination.  A
Single  Certificate for the Class A-PO  Certificates  represents a $1,328,709.03
Denomination.

            Section 11.25     Servicing Fee Rate.

            The rate used to calculate  the  Servicing Fee is equal to such rate
as is set forth on the Mortgage Loan Schedule with respect to a Mortgage Loan.

            Section 11.26     Master Servicing Fee Rate.

            The  rate  used to  calculate  the  Master  Servicing  Fee for  each
Mortgage Loan is 0.017% per annum.

            Section 11.27     Financial Security Contact Person.

            The Initial  Financial  Security Contact Person is Patrick Greene,
Vice President of the Seller.



<PAGE>




            IN WITNESS  WHEREOF,  the  Seller,  the Master  Servicer,  the Trust
Administrator  and the Trustee  have caused  their names to be signed  hereto by
their respective officers thereunto duly authorized,  all as of the day and year
first above written.


                                       NORWEST ASSET SECURITIES CORPORATION
                                         as Seller



                                       By:
                                           --------------------------------
                                          Name:  Alan S. McKenney
                                          Title:  Vice President



                                       NORWEST BANK MINNESOTA, NATIONAL
                                          ASSOCIATION
                                          as Master Servicer




                                       By:
                                           --------------------------------
                                          Name:
                                          Title:


                                       FIRST UNION NATIONAL BANK
                                          as Trust Administrator



                                       By:
                                           --------------------------------
                                          Name:
                                          Title:


Attest:
By:
   ---------------------------
Name:
     -------------------------
Title:
      ------------------------


                                       UNITED STATES TRUST COMPANY
                                          OF NEW YORK
                                          as Trustee



                                       By:
                                           --------------------------------
                                          Name:
                                          Title:




<PAGE>







STATE OF MARYLAND       )
                           ss.:
COUNTY OF FREDERICK     )


            On this 29th day of June,  1999,  before me, a notary  public in and
for the State of Maryland,  personally appeared Alan McKenney,  known to me who,
being by me duly sworn, did depose and say that he resides at McLean,  Virginia;
that he is a Vice President of Norwest Asset Securities Corporation,  a Delaware
corporation, one of the parties that executed the foregoing instrument; and that
he  signed  his  name  thereto  by  order  of the  Board  of  Directors  of said
corporation.


- -------------------------
Notary Public

[NOTARIAL SEAL]



<PAGE>







STATE OF MARYLAND       )
                           ss.:
COUNTY OF FREDERICK     )


            On this 29th day of June,  1999,  before me, a notary  public in and
for the State of Maryland,  personally  appeared  Nancy E. Burgess,  known to me
who,  being by me duly sworn,  did depose and say that she resides at Frederick,
Maryland;  that she is a Vice  President  of Norwest  Bank  Minnesota,  National
Association,  a national banking  association,  one of the parties that executed
the foregoing  instrument;  and that she signed her name thereto by order of the
Board of Directors of said corporation.


- -------------------------
Notary Public

[NOTARIAL SEAL]



<PAGE>







STATE OF _____________  )
                           ss.:
COUNTY OF               )


            On this 29th day of June,  1999,  before me, a notary  public in and
for _________________, personally appeared ___________________, known to me who,
being  by  me  duly   sworn,   did   depose   and  say  that  s/he   resides  at
_________________,  _________________;  that s/he is a  ____________________  of
United States Trust Company of New York, a ________________,  one of the parties
that  executed  the  foregoing  instrument;  and that s/he signed  his/her  name
thereto by order of the Board of Directors of said corporation.


- -------------------------
Notary Public

[NOTARIAL SEAL]





<PAGE>







STATE OF NORTH CAROLINA      )
                                ss.:
COUNTY OF                    )


            On this 29th day of June,  1999,  before me, a notary  public in and
for the  State of North  Carolina,  personally  appeared  _____________________,
known to me who,  being by me duly sworn,  did depose and say that he resides at
__________________,  North Carolina; that he is a _____________________ of First
Union National  Bank, a national  banking  association,  one of the parties that
executed  the  foregoing  instrument;  and that s/he signed his name  thereto by
order of the Board of Directors of said corporation.


- -------------------------
Notary Public

[NOTARIAL SEAL]


<PAGE>







                                   SCHEDULE I


    Norwest Asset Securities Corporation, Mortgage Pass-Through Certificates,
                                 Series 1999-18
                 Applicable Unscheduled Principal Receipt Period

                                       Full Unscheduled    Partial Unscheduled
Servicer                              Principal Receipts    Principal Receipts
- ------------------------------------  ------------------    ------------------
Norwest Mortgage, Inc. Exhibit F-(1)      Prior Month          Prior Month
Norwest Mortgage, Inc. Exhibit F-(2)       Mid Month            Mid Month
Bank United                                Mid Month           Prior Month
First Union Mortgage Corporation           Mid Month           Prior Month
Corporation.                               Mid Month           Prior Month
Countrywide Home Loans, Inc.              Prior Month          Prior Month
SunTrust Mortgage, Inc.                    Mid Month           Prior Month
Merrill Lynch Credit Corporation           Mid Month           Prior Month
National City Mortgage Company.            Mid Month           Prior Month
FT Mortgage Companies                      Mid Month           Prior Month
NOVUS Financial Corporation               Prior Month          Prior Month
Hibernia National Bank                     Mid Month           Prior Month
The Huntington Mortgage Company            Mid Month           Prior Month
HomeSide Lending                          Prior Month          Prior Month
Cascade Bank                               Mid Month           Prior Month
Chase Manhattan Mortgage Corporation       Mid Month           Prior Month
Plymouth Savings Bank                      Mid Month            Mid Month



<PAGE>



                                   EXHIBIT A-1
                     [FORM OF FACE OF CLASS A-1 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-1

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                     four-family residential mortgage loans,
                    which may include loans secured by shares
                          issued by cooperative housing
                              corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                          Cut-Off Date:  June 1, 1999

CUSIP No.:                                First Distribution Date: July 26, 1999

Percentage Interest evidenced by this     Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029


            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-1  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-1 Certificates required to be distributed to
Holders of the Class A-1  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-1 Certificates  applicable to each  Distribution Date will be 6.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-1 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer

<PAGE>





                                   EXHIBIT A-2
                     [FORM OF FACE OF CLASS A-2 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-2

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination: $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029


            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-2  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-2 Certificates required to be distributed to
Holders of the Class A-2  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-2 Certificates  applicable to each  Distribution Date will be 6.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-2 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 98.24767%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  1.81900000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  6.37%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.01866117%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
  Trust Administrator



By
   ------------------------
   Authorized Officer





<PAGE>





                                   EXHIBIT A-3
                     [FORM OF FACE OF CLASS A-3 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-3

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                        four-family residential mortgage
                     loans, which may include loans secured
                     by shares issued by cooperative housing
                             corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029


            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-3  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-3 Certificates required to be distributed to
Holders of the Class A-3  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-3 Certificates  applicable to each  Distribution Date will be 6.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-3 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 94.49767%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  5.56900000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  6.90%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.03707965%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer



<PAGE>





                                   EXHIBIT A-4
                     [FORM OF FACE OF CLASS A-4 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-4

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                  four-family residential mortgage loans, which
                  may include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029


            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-4  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-4 Certificates required to be distributed to
Holders of the Class A-4  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-4 Certificates  applicable to each  Distribution Date will be 6.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-4 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 97.59167%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  2.47500000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  6.90%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.05274921%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ---------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   -----------------------
   Authorized Officer



<PAGE>





                                   EXHIBIT A-5
                     [FORM OF FACE OF CLASS A-5 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-5

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                  four-family residential mortgage loans, which
                 may include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            UNTIL THE APPLICABLE  ACCRETION  TERMINATION DATE, THE INTEREST THAT
ACCRUES  ON THE  PRINCIPAL  BALANCE  OF THIS  CERTIFICATE  WILL NOT BE  PAYABLE.
BECAUSE  SUCH  UNPAID  INTEREST  IS  ADDED  TO THE  PRINCIPAL  BALANCE  OF  THIS
CERTIFICATE AND BECAUSE DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE WILL
BE MADE IN THE MANNER  DESCRIBED  IN THE  AGREEMENT  (AS  DEFINED  HEREIN),  THE
OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE  AT ANY TIME MAY BE MORE OR
LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.


Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>





            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-5  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-5 Certificates required to be distributed to
Holders of the Class A-5  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-5 Certificates  applicable to each  Distribution Date will be 6.500% per
annum.  Prior to the applicable  Accretion  Termination Date, no distribution of
interest on this  Certificate  will be made.  Prior to the applicable  Accretion
Termination  Date,   interest  otherwise  available  for  distribution  on  this
Certificate will be added to the Principal Balance of the Class A-5 Certificates
on each  Distribution  Date.  The  amount  of  interest  which  accrues  on this
Certificate  in any month  will be  subject  to  reduction  with  respect to any
Non-Supported  Interest  Shortfall and the interest  portion of certain Realized
Losses allocated to the Class A-5 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
90.00556%, including accrued interest, and a stated redemption price at maturity
equal to the sum of its initial principal balance and all interest distributions
hereon (whether current or accrued),  and is issued with original issue discount
("OID") for federal income tax purposes.  Assuming that this Certificate pays in
accordance  with  projected cash flows  reflecting the prepayment  assumption of
275% SPA (as  defined in the  Prospectus  Supplement  dated  June 24,  1999 with
respect  to the  offering  of the Class A  Certificates  (except  the Class A-PO
Certificates),  Class B-1, Class B-2 and Class B-3  Certificates)  used to price
this Certificate: (i) the amount of OID as a percentage of the initial principal
balance of this Certificate is approximately 14.37012906%; (ii) the annual yield
to maturity of this Certificate,  compounded monthly,  is approximately  23.20%;
and (iii) the amount of OID  allocable to the short first  accrual  period (June
29, 1999 to July 25, 1999) as a percentage of the initial  principal  balance of
this   Certificate,   calculated  using  the  exact  method,   is  approximately
1.50630400%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>




                                   EXHIBIT A-6
                     [FORM OF FACE OF CLASS A-6 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-6

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029


<PAGE>



            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-6  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-6 Certificates required to be distributed to
Holders of the Class A-6  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-6 Certificates  applicable to each  Distribution Date will be a floating
rate  of  interest  determined  as  provided  herein  and  as  specified  in the
Agreement.  The  pass-through  rate applicable with respect to the  Distribution
Date in July 1999 will be 5.750% per  annum.  Thereafter,  with  respect to each
Distribution  Date,  the  pass-through  rate will be a per annum  rate  equal to
0.850%  plus  LIBOR  as  determined  on the  second  business  day  prior to the
beginning  of the month  preceding  the month in which  such  Distribution  Date
occurs,  subject to a minimum rate of 0.850% and a maximum  rate of 9.000%.  The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated  to the Class A-6
Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>




                                   EXHIBIT A-7
                     [FORM OF FACE OF CLASS A-7 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-7

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>



            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-7  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-7 Certificates required to be distributed to
Holders of the Class A-7  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-7 Certificates  applicable to each  Distribution Date will be a floating
rate  of  interest  determined  as  provided  herein  and  as  specified  in the
Agreement.  The  pass-through  rate applicable with respect to the  Distribution
Date in July 1999 will be 8.450% per  annum.  Thereafter,  with  respect to each
Distribution  Date, the pass-through  rate will be a per annum rate equal to (i)
21.190%  minus (ii) the product of 2.600 and LIBOR,  as determined on the second
business day prior to the  beginning of the month  preceding  the month in which
such Distribution Date occurs, subject to a minimum rate of 0.000% and a maximum
rate of 21.190%. The amount of interest which accrues on this Certificate in any
month will be subject to reduction  with respect to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-7 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 84.81322%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
initial  pass-through  rate  hereon),  is issued with  original  issue  discount
("OID") for federal income tax purposes. Assuming (a) that this Certificate pays
in accordance with projected cash flows reflecting the prepayment  assumption of
275% SPA (as  defined in the  Prospectus  Supplement  dated  June 24,  1999 with
respect  to the  offering  of the Class A  Certificates  (except  the Class A-PO
Certificates),  Class B-1, Class B-2 and Class B-3  Certificates)  used to price
this  Certificate  and (b) that the  interest  rate at  which  distributions  of
interest on this Certificate  actually will be made will be determined as though
the pass-through rate on this Certificate  applicable to the first  Distribution
Date will not change  thereafter:  (i) the amount of OID as a percentage  of the
initial  principal  balance of this Certificate is  approximately  15.28066667%;
(ii) the annual yield to maturity of this Certificate,  compounded  monthly,  is
approximately  10.45%;  and (iii) the amount of OID allocable to the short first
accrual  period (June 29, 1999 to July 25, 1999) as a percentage  of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.02916693%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>




                                   EXHIBIT A-8
                     [FORM OF FACE OF CLASS A-8 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-8

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            UNTIL THE APPLICABLE  ACCRETION  TERMINATION DATE, THE INTEREST THAT
ACCRUES  ON THE  PRINCIPAL  BALANCE  OF THIS  CERTIFICATE  WILL NOT BE  PAYABLE.
BECAUSE  SUCH  UNPAID  INTEREST  IS  ADDED  TO THE  PRINCIPAL  BALANCE  OF  THIS
CERTIFICATE AND BECAUSE DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE WILL
BE MADE IN THE MANNER  DESCRIBED  IN THE  AGREEMENT  (AS  DEFINED  HEREIN),  THE
OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE  AT ANY TIME MAY BE MORE OR
LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.


Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>



            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-8  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-8 Certificates required to be distributed to
Holders of the Class A-8  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement. For the purposes of determining
distributions of interest and in reduction of Principal  Balance,  the Class A-8
Certificates  consist of five components  (each, a "Component" and individually,
the  "Class  A-8A IO  Component",  "Class  A-8B IO  Component",  "Class  A-8C IO
Component",  "Class A-8D IO Component"  and the "Class A-8 Accrual  Component").
The amount of interest which accrues on the Class A-8  Certificates in any month
will equal the sum of the interest  which  accrues on the Class A-8  Components.
The component  rate (the  "Component  Rate") on each of the Class A-8 Components
(other  than the Class A-8  Accrual  Componet)  will be 0.500% per annum and the
Component  Rate on the Class A-8  Accural  Component  will be 6.500%  per annum.
Interest  with  respect to each  Component  will accrue  during each month in an
amount  equal  to the  product  of (i)  1/12th  of the  Component  Rate for such
Component and (ii) the  outstanding  Principal  Balance in the case of the Class
A-8 Accrual Component or the applicable  outstanding notional amount in the case
of the Class A-8A IO, Class A-8B IO, Class A-8C IO and Class A-8D IO Components.
Prior to the applicable Accretion  Termination Date, the interest accrued on the
Class  A-8  Accrual  Component  will  not be  distributed  as  interest  on this
Certificate. Prior to the applicable Accretion Termination Date, the interest on
the Class A-8 Accrual  Component  otherwise  available for  distribution on this
Certificate will be added to the Component  Principal  Balance of such Component
on each  Distribution  Date.  The  amount  of  interest  which  accrues  on this
Certificate  in any month  will be  subject  to  reduction  with  respect to any
Non-Supported  Interest  Shortfall and the interest  portion of certain Realized
Losses allocated to the Class A-8 Certificates with respect to their Components.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above, the final  distribution in reduction on this
Certificate  will be made after due notice of the pendency of such  distribution
and only upon  presentation  and surrender of this  Certificate at the office or
agency  specified by the Trust  Administrator  for that purpose in the notice of
final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
100.24610%,  including  accrued  interest,  and a  stated  redemption  price  at
maturity  equal to the sum of its initial  principal  balance  and all  interest
distributions  hereon (whether current or accrued),  and is issued with original
issue  discount  ("OID") for federal  income tax  purposes.  Assuming  that this
Certificate  pays  in  accordance  with  projected  cash  flows  reflecting  the
prepayment assumption of 275% SPA (as defined in the Prospectus Supplement dated
June 24, 1999 with respect to the offering of the Class A  Certificates  (except
the Class A-PO  Certificates),  Class B-1, Class B-2 and Class B-3 Certificates)
used to price this  Certificate:  (i) the amount of OID as a  percentage  of the
initial  principal  balance of this Certificate is  approximately  79.20304839%;
(ii) the annual yield to maturity of this Certificate,  compounded  monthly,  is
approximately  7.67%;  and (iii) the amount of OID  allocable to the short first
accrual  period (June 29, 1999 to July 25, 1999) as a percentage  of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.55502385%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>




                                   EXHIBIT A-9
                     [FORM OF FACE OF CLASS A-9 CERTIFICATE]

            AFTER THE CROSS-OVER DATE, THE PRINCIPAL PORTION OF REALIZED LOSSES,
OTHER THAN EXCESS  LOSSES,  THAT WOULD  OTHERWISE  BE ALLOCATED TO THE CLASS A-8
CERTIFICATES  WILL BE BORNE BY THE CLASS A-9  CERTIFICATES  AS  DESCRIBED IN THE
POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>






                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-9

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029




<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-9  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-9 Certificates required to be distributed to
Holders of the Class A-9  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-9 Certificates  applicable to each  Distribution Date will be 6.500% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-9 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class A-9  Certificate  will be made  unless  the
Holder  hereof  desiring to make any such  transfer  shall  deliver to the Trust
Administrator  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 96.20856%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  3.86366667%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.04%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.01932856%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>





                                  EXHIBIT A-10
                    [FORM OF FACE OF CLASS A-10 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-10

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                         Cut-Off Date:  June 1, 1999

CUSIP No.:                              First Distribution Date: July 26, 1999

Percentage Interest evidenced           Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029


<PAGE>



            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-10  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-10 Certificates  required to be distributed
to Holders of the Class A-10 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-10 Certificates  applicable to each Distribution Date will be 6.750% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-10 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 98.99400%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  1.08100000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.11%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.02073970%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                          ---------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-11
                    [FORM OF FACE OF CLASS A-11 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-11

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            UNTIL THE APPLICABLE  ACCRETION  TERMINATION DATE, THE INTEREST THAT
ACCRUES  ON THE  PRINCIPAL  BALANCE  OF THIS  CERTIFICATE  WILL NOT BE  PAYABLE.
BECAUSE  SUCH  UNPAID  INTEREST  IS  ADDED  TO THE  PRINCIPAL  BALANCE  OF  THIS
CERTIFICATE AND BECAUSE DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE WILL
BE MADE IN THE MANNER  DESCRIBED  IN THE  AGREEMENT  (AS  DEFINED  HEREIN),  THE
OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE  AT ANY TIME MAY BE MORE OR
LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>





            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-11  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-11 Certificates  required to be distributed
to Holders of the Class A-11 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-11 Certificates  applicable to each Distribution Date will be 6.750% per
annum.  Prior to the applicable  Accretion  Termination Date, no distribution of
interest on this  Certificate  will be made.  Prior to the applicable  Accretion
Termination  Date,   interest  otherwise  available  for  distribution  on  this
Certificate  will  be  added  to  the  Principal   Balance  of  the  Class  A-11
Certificates on each Distribution  Date. The amount of interest which accrues on
this  Certificate  in any month will be subject to reduction with respect to any
Non-Supported  Interest  Shortfall and the interest  portion of certain Realized
Losses allocated to the Class A-11 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
90.88400%, including accrued interest, and a stated redemption price at maturity
equal to the sum of its initial principal balance and all interest distributions
hereon (whether current or accrued),  and is issued with original issue discount
("OID") for federal income tax purposes.  Assuming that this Certificate pays in
accordance  with  projected cash flows  reflecting the prepayment  assumption of
275% SPA (as  defined in the  Prospectus  Supplement  dated  June 24,  1999 with
respect  to the  offering  of the Class A  Certificates  (except  the Class A-PO
Certificates),  Class B-1, Class B-2 and Class B-3  Certificates)  used to price
this Certificate: (i) the amount of OID as a percentage of the initial principal
balance of this Certificate is approximately 81.55830867%; (ii) the annual yield
to maturity of this Certificate, compounded monthly, is approximately 7.95%; and
(iii) the amount of OID  allocable to the short first  accrual  period (June 29,
1999 to July 25, 1999) as a percentage of the initial  principal balance of this
Certificate, calculated using the exact method, is approximately 0.52155619%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator

By
- ------------------------
Authorized Officer

<PAGE>





                                  EXHIBIT A-12
                    [FORM OF FACE OF CLASS A-12 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-12

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR (EXCEPT AS PROVIDED HEREIN) PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029


<PAGE>



            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-12  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage  Interest evidenced by this Certificate and the amount
of  interest to be  distributed  to Holders of Class A-12  Certificates  on such
Distribution Date as specified in the Agreement. Distributions of principal will
be made to the Holders of the Class A-12  Certificates as described below and in
the  Agreement.  Prior to the  Distribution  Date,  if any,  on which  Financial
Security  fails to make a payment  with  respect  to a Class  A-12  Distribution
Deficiency,  distributions  in  reduction  of  the  Principal  Balance  of  this
Certificate  (including  amounts paid in respect of such losses under the Policy
as defined  below) will be made only in lots equal to $1,000  initial  principal
balance  and in  accordance  with the  priorities  and  procedures  set forth in
Section 4.07 of the Agreement (i) at the request of Deceased Holders (ii) at the
request  of  Living  Holders  and  (iii)  by  random  lot.  On  and  after  such
Distribution Date,  distributions in reduction of principal balance will be made
as  provided in the  Agreement.  Distributions  in  reduction  of the  Principal
Balance of certain Classes of Class A Certificates may not commence on the first
Distribution Date specified above.  Distributions of principal will be allocated
among the Classes of Class A Certificates  in accordance  with the provisions of
the Agreement.  The pass-through rate on the Class A-12 Certificates  applicable
to each Distribution Date will be 7.000% per annum. The amount of interest which
accrues on this  Certificate  in any month will be  subject  to  reduction  with
respect to any  Non-Supported  Interest  Shortfall  and the interest  portion of
certain Realized Losses allocated to the Class A-12  Certificates,  as described
in the Agreement.  Any Non-Supported  Interest Shortfall  allocated to the Class
A-12  Certificates  will be covered,  to the extent  available,  by funds in the
Reserve  Fund,  to the extent  described in the Agreement and then by the Policy
described below.

            The Class A-12  Certificates  will be entitled to the  benefits of a
Financial  Guaranty Insurance Policy issued by Financial Security Assurance Inc.
(the "Policy") to the extent described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>





                                  EXHIBIT A-13
                    [FORM OF FACE OF CLASS A-13 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-13

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                          Cut-Off Date:  June 1, 1999

CUSIP No.:                                First Distribution Date: July 26, 1999

Percentage Interest evidenced by this     Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>





            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-13  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-13 Certificates  required to be distributed
to Holders of the Class A-13 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance  with the  provisions of the Agreement.  The Class A-13  Certificates
will not be entitled to distributions in respect of interest.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
37.79700%  and a stated  redemption  price  at  maturity  equal  to its  initial
principal  balance,  and is issued  with  original  issue  discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 62.20300000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  8.05%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.21974034%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>





                                  EXHIBIT A-14
                    [FORM OF FACE OF CLASS A-14 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-14

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date: July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029

<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-14  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-14 Certificates  required to be distributed
to Holders of the Class A-14 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-14 Certificates  applicable to each Distribution Date will be a floating
rate  of  interest  determined  as  provided  herein  and  as  specified  in the
Agreement.  The  pass-through  rate applicable with respect to the  Distribution
Date in July 1999 will be 5.918% per  annum.  Thereafter,  with  respect to each
Distribution  Date,  the  pass-through  rate will be a per annum  rate  equal to
1.000%  plus  LIBOR  as  determined  on the  second  business  day  prior to the
beginning  of the month  preceding  the month in which  such  Distribution  Date
occurs,  subject to a minimum rate of 1.000% and a maximum  rate of 8.500%.  The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated to the Class A-14
Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                          ---------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-15
                    [FORM OF FACE OF CLASS A-15 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-15

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date: July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date: July 25, 2029



<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-15  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust  Administrator"),  and the United States Trust Company
of New York, as trustee (the  "Trustee"),  a summary of certain of the pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-15 Certificates  required to be distributed
to Holders of the Class A-15 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-15 Certificates  applicable to each Distribution Date will be a floating
rate  of  interest  determined  as  provided  herein  and  as  specified  in the
Agreement.  The  pass-through  rate applicable with respect to the  Distribution
Date in July 1999 will be 9.9591430% per annum. Thereafter, with respect to each
Distribution  Date, the pass-through  rate will be a per annum rate equal to (i)
28.9285714286%  minus (ii) the product of 3.8571428571  and LIBOR, as determined
on the second  business day prior to the  beginning of the month  preceding  the
month in which such  Distribution  Date  occurs,  subject  to a minimum  rate of
0.000%  and a maximum  rate of  28.9285714286%.  The  amount of  interest  which
accrues on this  Certificate  in any month will be  subject  to  reduction  with
respect to any  Non-Supported  Interest  Shortfall  and the interest  portion of
certain Realized Losses allocated to the Class A-15  Certificates,  as described
in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 90.27460%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
initial  pass-through  rate  hereon),  is issued with  original  issue  discount
("OID") for federal income tax purposes. Assuming (a) that this Certificate pays
in accordance with projected cash flows reflecting the prepayment  assumption of
275% SPA (as  defined in the  Prospectus  Supplement  dated  June 24,  1999 with
respect  to the  offering  of the Class A  Certificates  (except  the Class A-PO
Certificates),  Class B-1, Class B-2 and Class B-3  Certificates)  used to price
this  Certificate  and (b) that the  interest  rate at  which  distributions  of
interest on this Certificate  actually will be made will be determined as though
the pass-through rate on this Certificate  applicable to the first  Distribution
Date will not change  thereafter:  (i) the amount of OID as a percentage  of the
initial principal balance of this Certificate is approximately 9.83605713%; (ii)
the  annual  yield to  maturity  of this  Certificate,  compounded  monthly,  is
approximately  11.55%;  and (iii) the amount of OID allocable to the short first
accrual  period (June 29, 1999 to July 25, 1999) as a percentage  of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.03312265%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                         ----------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-16
                    [FORM OF FACE OF CLASS A-16 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-16

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date: July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029


<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-16  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust  Administrator"),  and the United States Trust Company
of New York, as trustee (the  "Trustee"),  a summary of certain of the pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-16 Certificates  required to be distributed
to Holders of the Class A-16 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-16 Certificates  applicable to each Distribution Date will be 6.625% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-16 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                         ----------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   -----------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-17
                    [FORM OF FACE OF CLASS A-17 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-17

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date: June 1, 1999

CUSIP No.:                               First Distribution Date: July 26, 1999

Percentage Interest evidenced            Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:
July 25, 2029


<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-17  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-17 Certificates  required to be distributed
to Holders of the Class A-17 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-17 Certificates  applicable to each Distribution Date will be 6.750% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-17 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                          ---------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-18
                    [FORM OF FACE OF CLASS A-18 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-18

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029

<PAGE>



            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-18  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-18 Certificates  required to be distributed
to Holders of the Class A-18 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-18 Certificates  applicable to each Distribution Date will be 6.750% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-18 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                          ---------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-19
                    [FORM OF FACE OF CLASS A-19 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-19

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            UNTIL THE APPLICABLE  ACCRETION  TERMINATION DATE, THE INTEREST THAT
ACCRUES  ON THE  PRINCIPAL  BALANCE  OF THIS  CERTIFICATE  WILL NOT BE  PAYABLE.
BECAUSE  SUCH  UNPAID  INTEREST  IS  ADDED  TO THE  PRINCIPAL  BALANCE  OF  THIS
CERTIFICATE AND BECAUSE DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE WILL
BE MADE IN THE MANNER  DESCRIBED  IN THE  AGREEMENT  (AS  DEFINED  HEREIN),  THE
OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE  AT ANY TIME MAY BE MORE OR
LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-19  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-19 Certificates  required to be distributed
to Holders of the Class A-19 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-19 Certificates  applicable to each Distribution Date will be 6.750% per
annum.  Prior to the applicable  Accretion  Termination Date, no distribution of
interest on this  Certificate  will be made.  Prior to the applicable  Accretion
Termination  Date,   interest  otherwise  available  for  distribution  on  this
Certificate  will  be  added  to  the  Principal   Balance  of  the  Class  A-19
Certificates on each Distribution  Date. The amount of interest which accrues on
this  Certificate  in any month will be subject to reduction with respect to any
Non-Supported  Interest  Shortfall and the interest  portion of certain Realized
Losses allocated to the Class A-19 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
92.94700%, including accrued interest, and a stated redemption price at maturity
equal to the sum of its initial principal balance and all interest distributions
hereon (whether current or accrued),  and is issued with original issue discount
("OID") for federal income tax purposes.  Assuming that this Certificate pays in
accordance  with  projected cash flows  reflecting the prepayment  assumption of
275% SPA (as  defined in the  Prospectus  Supplement  dated  June 24,  1999 with
respect  to the  offering  of the Class A  Certificates  (except  the Class A-PO
Certificates),  Class B-1, Class B-2 and Class B-3  Certificates)  used to price
this Certificate: (i) the amount of OID as a percentage of the initial principal
balance of this  Certificate  is  approximately  129.82263455%;  (ii) the annual
yield to maturity of this  Certificate,  compounded  monthly,  is  approximately
7.42%;  and (iii) the amount of OID allocable to the short first accrual  period
(June  29,  1999 to July 25,  1999) as a  percentage  of the  initial  principal
balance of this Certificate, calculated using the exact method, is approximately
0.49782103%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                         ----------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-20
                    [FORM OF FACE OF CLASS A-20 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-20

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-20  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-20 Certificates  required to be distributed
to Holders of the Class A-20 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement. For the purposes of determining
distributions  in reduction of Principal  Balance,  the Class A-20  Certificates
consist of two components  (each,  a "Component"  and  individually,  the "Class
A-20A  Component" and the "Class A-20B  Component").  Neither  Component will be
entitled to distributions in respect of interest.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
67.75000%  and a stated  redemption  price  at  maturity  equal  to its  initial
principal  balance,  and is issued  with  original  issue  discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 32.25000000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.50%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.36663001%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                          ---------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-21
                    [FORM OF FACE OF CLASS A-21 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-21

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            THE  NOTIONAL  AMOUNT OF THIS  CERTIFICATE  WILL BE REDUCED IN THE
MANNER  DESCRIBED IN THE POOLING AND  SERVICING  AGREEMENT.  ACCORDINGLY,  THE
OUTSTANDING  NOTIONAL AMOUNT OF THIS  CERTIFICATE AT ANY TIME MAY BE LESS THAN
THE INITIAL NOTIONAL AMOUNT REPRESENTED HEREBY.


Certificate No.                           Cut-Off Date:  June 1, 1999

CUSIP No.:  ______                        First Distribution Date: July 26, 1999

Percentage Interest evidenced             Denomination:   $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-21  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-21 Certificates  required to be distributed
to Holders of the Class A-21 Certificates on such Distribution  Date, subject to
adjustment  in certain  events as  specified  in the  Agreement.  The Class A-21
Certificates are not entitled to distributions in respect of principal. Interest
will accrue on the Class A-21  Certificates each month in an amount equal to the
product of (i) 1/12th of 6.500%  and (ii) the Class A-21  Notional  Amount as of
the related  Distribution  Date.  The amount of interest  which  accrues on this
Certificate  in any month  will be  subject  to  reduction  with  respect to any
Non-Supported  Interest  Shortfall and the interest  portion of certain Realized
Losses allocated to the Class A-21 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution on this Certificate
will be made after due notice of the pendency of such distribution and only upon
presentation and surrender of this Certificate at the office or agency specified
by the Trust Administrator for that purpose in the notice of final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
24.89656% of the initial Class A-21 Notional Amount, including accrued interest,
and a stated  redemption  price at maturity equal to all interest  distributions
hereon,  and is issued with original issue  discount  ("OID") for federal income
tax purposes.  Assuming that this  Certificate pays in accordance with projected
cash flows  reflecting the prepayment  assumption of 275% SPA (as defined in the
Prospectus  Supplement  dated June 24, 1999 with  respect to the offering of the
Class A (except the Class A-PO Certificates), Class B-1, Class B-2 and Class B-3
Certificates)  used  to  price  this  Certificate:  (i) the  amount  of OID as a
percentage  of  the  initial  Class  A-21  Notional   Amount  is   approximately
7.34980279%;  (ii) the annual yield to maturity of this Certificate,  compounded
monthly,  is  approximately  9.30%; and (iii) the amount of OID allocable to the
short first  accrual  period (June 29, 1999 to July 25, 1999) as a percentage of
the initial Class A-21 Notional Amount,  calculated  using the exact method,  is
approximately 0.16722382%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                         ----------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-22
                    [FORM OF FACE OF CLASS A-22 CERTIFICATE]

            AFTER THE CROSS-OVER DATE, THE PRINCIPAL PORTION OF REALIZED LOSSES,
OTHER THAN EXCESS  LOSSES,  THAT WOULD  OTHERWISE BE ALLOCATED TO THE CLASS A-19
CERTIFICATES  WILL BE BORNE BY THE CLASS A-22  CERTIFICATES  AS DESCRIBED IN THE
POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                                  EXHIBIT A-22
                    [FORM OF FACE OF CLASS A-22 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-22

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-22  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-22 Certificates  required to be distributed
to Holders of the Class A-22 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-22 Certificates  applicable to each Distribution Date will be 6.500% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-22 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class A-22  Certificate  will be made  unless the
Holder  hereof  desiring to make any such  transfer  shall  deliver to the Trust
Administrator  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 96.69356%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  3.37866667%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  6.97%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.01697769%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                         ----------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-PO
                    [FORM OF FACE OF CLASS A-PO CERTIFICATE]

            THIS  CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED  UNDER THE
SECURITIES ACT OF 1933, AS AMENDED,  OR THE SECURITIES LAWS OF ANY STATE AND MAY
NOT BE RESOLD OR  TRANSFERRED  UNLESS IT IS REGISTERED  PURSUANT TO SUCH ACT AND
LAWS  OR  IS  SOLD  OR  TRANSFERRED  IN  TRANSACTIONS   WHICH  ARE  EXEMPT  FROM
REGISTRATION UNDER SUCH ACT AND UNDER APPLICABLE STATE LAW AND IS TRANSFERRED IN
ACCORDANCE  WITH THE  PROVISIONS  OF SECTION  5.02 OF THE POOLING AND  SERVICING
AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN  OR  OTHER  RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974, AS AMENDED ("ERISA") OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986,
AS AMENDED (THE "CODE"),  OR A GOVERNMENTAL PLAN, AS DEFINED IN SECTION 3(32) OF
ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL LAW  WHICH  IS, TO A  MATERIAL
EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE (COLLECTIVELY,
A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN.



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-PO

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                          Cut-Off Date:  June 1, 1999

CUSIP No.:                                First Distribution Date: July 26, 1999

Percentage Interest evidenced by this     Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-PO  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator  (the "Trust  Administrator"),  and United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-PO Certificates  required to be distributed
to Holders of the Class A-PO Certificates on such Distribution  Date, subject to
adjustment  in certain  events as  specified  in the  Agreement.  The Class A-PO
Certificates will not be entitled to distributions in respect of interest.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class A-PO  Certificate  will be made unless such
transfer is exempt from the  registration  requirements of the Securities Act of
1933,  as  amended,  and  any  applicable  state  securities  laws or is made in
accordance  with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof,  (i) the transferee will be required to execute
an  investment  letter in the form  described in the  Agreement and (ii) if such
transfer  is to be made  within  three  years  from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any  affiliate  thereof  was  a  Holder  of  the  Certificates  proposed  to  be
transferred,  and unless  such  transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended,  the Trust  Administrator  or the Seller may
require  the Holder to deliver an opinion of counsel  acceptable  to and in form
and substance  satisfactory to the Trust  Administrator and the Seller that such
transfer is exempt (describing the applicable  exemption and the basis therefor)
from  or is  being  made  pursuant  to  the  registration  requirements  of  the
Securities Act of 1933, as amended,  and of any applicable statute of any state.
The Holder hereof desiring to effect such transfer shall,  and does hereby agree
to,  indemnify  the Trustee,  the Trust  Administrator,  the Seller,  the Master
Servicer,  and any Paying  Agent  acting on behalf of the  Trustee  against  any
liability  that may  result if the  transfer  is not so exempt or is not made in
accordance  with  such  Federal  and state  laws.  In  connection  with any such
transfer, the Trust Administrator will also require (i) a representation letter,
in the form as described in the Agreement,  stating that the transferee is not a
Plan and is not  acting on  behalf  of a Plan or using  the  assets of a Plan to
effect such  purchase or (ii) if such  transferee  is a Plan,  (a) an opinion of
counsel  acceptable  to and in form  and  substance  satisfactory  to the  Trust
Administrator  and the Seller with respect to certain matters and (b) such other
documentation as the Seller or the Master Servicer may require,  as described in
the Agreement.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
67.25000%  and a stated  redemption  price  at  maturity  equal  to its  initial
principal  balance,  and is issued  with  original  issue  discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 32.75000000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.51%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.36437245%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                            Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
    Authorized Officer



<PAGE>






                                   EXHIBIT A-R
                     [Form of Face of Class A-R Certificate]

            FOR  U.S.  FEDERAL  INCOME  TAX  PURPOSES,  THIS  CERTIFICATE  IS  A
"RESIDUAL  INTEREST" IN A "REAL  ESTATE  MORTGAGE  INVESTMENT  CONDUIT" AS THOSE
TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G(a)(2) AND 860D OF THE INTERNAL
REVENUE CODE OF 1986, AS AMENDED (THE "CODE"). A TRANSFEREE OF THIS CERTIFICATE,
BY ACCEPTANCE  HEREOF,  IS DEEMED TO HAVE ACCEPTED THIS  CERTIFICATE  SUBJECT TO
CERTAIN RESTRICTIONS ON TRANSFERABILITY,  AS SET FORTH IN SECTION 5.02(d) OF THE
POOLING AND SERVICING  AGREEMENT,  AND SHALL BE REQUIRED TO FURNISH AN AFFIDAVIT
TO THE TRANSFEROR AND THE TRUST  ADMINISTRATOR  TO THE EFFECT THAT,  AMONG OTHER
THINGS, IT IS NOT A DISQUALIFIED  ORGANIZATION,  AS SUCH TERM IS DEFINED IN CODE
SECTION  860E(e)(5),  AN AGENT (INCLUDING A BROKER,  NOMINEE OR OTHER MIDDLEMAN)
FOR A DISQUALIFIED ORGANIZATION OR A NON-PERMITTED FOREIGN HOLDER, AS DEFINED IN
SECTION  5.02(d) OF THE POOLING AND  SERVICING  AGREEMENT  AND TO HAVE AGREED TO
SUCH  AMENDMENTS  TO THE POOLING AND  SERVICING  AGREEMENT AS MAY BE REQUIRED TO
FURTHER EFFECTUATE THE RESTRICTIONS ON TRANSFERS TO DISQUALIFIED  ORGANIZATIONS,
AGENTS THEREOF OR NON-PERMITTED FOREIGN HOLDERS.

            THE HOLDER OF THIS CLASS A-R CERTIFICATE,  BY ACCEPTANCE  HEREOF, IS
DEEMED TO HAVE AGREED TO THE  DESIGNATION OF THE MASTER SERVICER AS ITS AGENT TO
ACT AS "TAX MATTERS PERSON" OF THE UPPER-TIER  REMIC TO PERFORM THE FUNCTIONS OF
A "TAX MATTERS PARTNER" FOR PURPOSES OF SUBCHAPTER C OF CHAPTER 63 OF SUBTITLE F
OF THE CODE, OR, IF SO REQUESTED BY THE MASTER  SERVICER,  TO ACT AS TAX MATTERS
PERSON OF THE UPPER-TIER REMIC.

            THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR  TRANSFERRED  TO ANY
PERSON WHICH IS AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT ARRANGEMENT SUBJECT
TO TITLE I OF THE EMPLOYEE  RETIREMENT  INCOME  SECURITY ACT OF 1974, AS AMENDED
("ERISA"),  OR SECTION 4975 OF THE CODE OR A  GOVERNMENTAL  PLAN,  AS DEFINED IN
SECTION 3(32) OF ERISA SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A
MATERIAL  EXTENT,  SIMILAR  TO THE  FOREGOING  PROVISIONS  OF  ERISA OR THE CODE
(COLLECTIVELY,  A "PLAN"),  OR ANY PERSON  ACTING ON BEHALF OF OR INVESTING  THE
ASSETS OF A PLAN.



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS A-R

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $100.00
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS  CERTIFIES  THAT  __________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions to the Holder of the Class A-R Certificate with respect to a Trust
Estate consisting of a pool of fixed interest rate,  conventional,  monthly pay,
fully amortizing,  first lien, one- to four-family  residential  mortgage loans,
other than the Fixed Retained Yield, if any, with respect thereto, and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of June 29, 1999 (the  "Agreement")  among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First Union  National  Bank, as trust  administrator  (the
"Trust  Administrator")  and the United  States  Trust  Company of New York,  as
trustee (the  "Trustee"),  a summary of certain of the  pertinent  provisions of
which  is  set  forth  hereinafter.  To  the  extent  not  defined  herein,  the
capitalized  terms used herein have the  meanings  ascribed to such terms in the
Agreement.  This  Certificate  is issued  under  and is  subject  to the  terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-R Certificate  required to be distributed to
the Holder of the Class A-R Certificate on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-R Certificate  applicable to each  Distribution  Date will be 6.500% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-R Certificate, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as  such  name  and  address   shall   appear  on  the   Certificate   Register.
Notwithstanding  the above,  the final  distribution on this Certificate will be
made  after  due  notice  of the  pendency  of such  distribution  and only upon
presentation and surrender of this Certificate at the office or agency specified
by the Trust Administrator for that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer



<PAGE>






                                  EXHIBIT A-LR
                    [Form of Face of Class A-LR Certificate]

            FOR  U.S.  FEDERAL  INCOME  TAX  PURPOSES,  THIS  CERTIFICATE  IS  A
"RESIDUAL  INTEREST" IN A "REAL  ESTATE  MORTGAGE  INVESTMENT  CONDUIT" AS THOSE
TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G(a)(2) AND 860D OF THE INTERNAL
REVENUE CODE OF 1986, AS AMENDED (THE "CODE"). A TRANSFEREE OF THIS CERTIFICATE,
BY ACCEPTANCE  HEREOF,  IS DEEMED TO HAVE ACCEPTED THIS  CERTIFICATE  SUBJECT TO
CERTAIN RESTRICTIONS ON TRANSFERABILITY,  AS SET FORTH IN SECTION 5.02(d) OF THE
POOLING AND SERVICING  AGREEMENT,  AND SHALL BE REQUIRED TO FURNISH AN AFFIDAVIT
TO THE TRANSFEROR AND THE TRUST  ADMINISTRATOR  TO THE EFFECT THAT,  AMONG OTHER
THINGS, IT IS NOT A DISQUALIFIED  ORGANIZATION,  AS SUCH TERM IS DEFINED IN CODE
SECTION  860E(e)(5),  AN AGENT (INCLUDING A BROKER,  NOMINEE OR OTHER MIDDLEMAN)
FOR A DISQUALIFIED ORGANIZATION OR A NON-PERMITTED FOREIGN HOLDER, AS DEFINED IN
SECTION  5.02(d) OF THE POOLING AND  SERVICING  AGREEMENT  AND TO HAVE AGREED TO
SUCH  AMENDMENTS  TO THE POOLING AND  SERVICING  AGREEMENT AS MAY BE REQUIRED TO
FURTHER EFFECTUATE THE RESTRICTIONS ON TRANSFERS TO DISQUALIFIED  ORGANIZATIONS,
AGENTS THEREOF OR NON-PERMITTED FOREIGN HOLDERS.

            THE HOLDER OF THIS CLASS A-LR CERTIFICATE,  BY ACCEPTANCE HEREOF, IS
DEEMED TO HAVE AGREED TO THE  DESIGNATION OF THE MASTER SERVICER AS ITS AGENT TO
ACT AS "TAX MATTERS PERSON" OF THE LOWER-TIER  REMIC TO PERFORM THE FUNCTIONS OF
A "TAX MATTERS PARTNER" FOR PURPOSES OF SUBCHAPTER C OF CHAPTER 63 OF SUBTITLE F
OF THE CODE, OR, IF SO REQUESTED BY THE MASTER  SERVICER,  TO ACT AS TAX MATTERS
PERSON OF THE LOWER-TIER REMIC.

            THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR  TRANSFERRED  TO ANY
PERSON WHICH IS AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT ARRANGEMENT SUBJECT
TO TITLE I OF THE EMPLOYEE  RETIREMENT  INCOME  SECURITY ACT OF 1974, AS AMENDED
("ERISA"),  OR SECTION 4975 OF THE CODE OR A  GOVERNMENTAL  PLAN,  AS DEFINED IN
SECTION 3(32) OF ERISA SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A
MATERIAL  EXTENT,  SIMILAR  TO THE  FOREGOING  PROVISIONS  OF  ERISA OR THE CODE
(COLLECTIVELY,  A "PLAN"),  OR ANY PERSON  ACTING ON BEHALF OF OR INVESTING  THE
ASSETS OF A PLAN.



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 1999-18, CLASS A-LR

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $100.00
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS  CERTIFIES  THAT  __________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holder of the Class  A-LR  Certificate  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-LR Certificate required to be distributed to
the Holder of the Class A-LR Certificate on such Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-LR Certificate  applicable to each  Distribution Date will be 6.500% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-LR Certificate, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as  such  name  and  address   shall   appear  on  the   Certificate   Register.
Notwithstanding  the above,  the final  distribution on this Certificate will be
made  after  due  notice  of the  pendency  of such  distribution  and only upon
presentation and surrender of this Certificate at the office or agency specified
by the Trust Administrator for that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                          First Union National Bank,
                                          Trust Administrator



                                          By
                                             ----------------------------
                                          Authorized Officer

Countersigned:



   First Union National Bank,
   Trust Administrator



   By
      ------------------------
   Authorized Officer



<PAGE>






                                   EXHIBIT B-1
                     [FORM OF FACE OF CLASS B-1 CERTIFICATE]

            THIS  CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS
A  CERTIFICATES  AND  FINANCIAL  SECURITY  AS  DESCRIBED  IN THE  POOLING  AND
SERVICING AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS B-1

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final  Scheduled  Maturity Date:
July 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-1  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates and Financial Security as specified
in the Agreement,  any Class B-1 Distribution  Amount required to be distributed
to Holders of the Class B-1 Certificates on such Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-1 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-1 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-1  Certificate  will be made  unless  the
Holder  hereof  desiring to make any such  transfer  shall  deliver to the Trust
Administrator  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 92.78681%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  7.28541667%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.54%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.03555593%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                            Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
    ------------------------
   Authorized Officer



<PAGE>






                                   EXHIBIT B-2
                     [FORM OF FACE OF CLASS B-2 CERTIFICATE]

            THIS  CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES,  FINANCIAL SECURITY AND THE CLASS B-1 CERTIFICATES AS DESCRIBED IN
THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS B-2

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination: $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-2  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates,  Financial Security and each Class
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-2 Distribution  Amount required to be distributed to
Holders of the Class B-2  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-2 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-2 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-2  Certificate  will be made  unless  the
Holder  hereof  desiring to make any such  transfer  shall  deliver to the Trust
Administrator  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 91.16181%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  8.91041667%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.79%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.04300523%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer



<PAGE>






                                   EXHIBIT B-3
                     [FORM OF FACE OF CLASS B-3 CERTIFICATE]

            THIS  CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES,  FINANCIAL SECURITY,  THE CLASS B-1 CERTIFICATES AND THE CLASS B-2
CERTIFICATES  AS DESCRIBED IN THE POOLING AND  SERVICING  AGREEMENT  REFERRED TO
HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS B-3

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS   CERTIFIES   THAT   _______________________________   is   the
registered  owner of the Percentage  Interest  evidenced by this  Certificate in
monthly  distributions to the Holders of the Class B-3 Certificates with respect
to a Trust Estate  consisting of a pool of fixed  interest  rate,  conventional,
monthly pay,  fully  amortizing,  first lien,  one- to  four-family  residential
mortgage  loans,  other than the Fixed  Retained  Yield,  if any,  with  respect
thereto,  and which may include loans  secured by shares  issued by  cooperative
housing  corporations  (the "Mortgage Loans") formed by Norwest Asset Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates,  Financial Security and each Class
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-3 Distribution  Amount required to be distributed to
Holders of the Class B-3  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-3 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-3 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-3  Certificate  will be made  unless  the
Holder  hereof  desiring to make any such  transfer  shall  deliver to the Trust
Administrator  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 85.38056%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 14.69166667%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  8.72%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.06811102%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator


                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
  ------------------------
   Authorized Officer



<PAGE>






                                   EXHIBIT B-4
                     [FORM OF FACE OF CLASS B-4 CERTIFICATE]

            THIS  CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES,  FINANCIAL  SECURITY,  THE CLASS B-1  CERTIFICATES,  THE CLASS B-2
CERTIFICATES  AND THE CLASS B-3  CERTIFICATES  AS  DESCRIBED  IN THE POOLING AND
SERVICING AGREEMENT REFERRED TO HEREIN.

            THIS  CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED  UNDER THE
SECURITIES ACT OF 1933, AS AMENDED,  OR THE SECURITIES LAWS OF ANY STATE AND MAY
NOT BE RESOLD OR  TRANSFERRED  UNLESS IT IS REGISTERED  PURSUANT TO SUCH ACT AND
LAWS  OR  IS  SOLD  OR  TRANSFERRED  IN  TRANSACTIONS   WHICH  ARE  EXEMPT  FROM
REGISTRATION UNDER SUCH ACT AND UNDER APPLICABLE STATE LAW AND IS TRANSFERRED IN
ACCORDANCE  WITH THE  PROVISIONS  OF SECTION  5.02 OF THE POOLING AND  SERVICING
AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS B-4

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-4  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates,  Financial Security and each Class
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-4 Distribution  Amount required to be distributed to
Holders of the Class B-4  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-4 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-4 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-4  Certificate  will be made  unless such
transfer is exempt from the  registration  requirements of the Securities Act of
1933,  as  amended,  and  any  applicable  state  securities  laws or is made in
accordance  with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof,  (i) the transferee will be required to execute
an  investment  letter in the form  described in the  Agreement and (ii) if such
transfer  is to be made  within  three  years  from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any  affiliate  thereof  was  a  Holder  of  the  Certificates  proposed  to  be
transferred,  and unless  such  transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended,  the Trust  Administrator  or the Seller may
require  the Holder to deliver an opinion of counsel  acceptable  to and in form
and substance  satisfactory to the Trust  Administrator and the Seller that such
transfer is exempt (describing the applicable  exemption and the basis therefor)
from  or is  being  made  pursuant  to  the  registration  requirements  of  the
Securities Act of 1933, as amended,  and of any applicable statute of any state.
The Holder hereof desiring to effect such transfer shall,  and does hereby agree
to,  indemnify  the Trustee,  the Trust  Administrator,  the Seller,  the Master
Servicer,  and any  Paying  Agent  acting on  behalf of the Trust  Administrator
against any liability that may result if the transfer is not so exempt or is not
made in accordance with such Federal and state laws. In connection with any such
transfer, the Trust Administrator will also require (i) a representation letter,
in the  form  as  described  in the  Agreement,  stating  either  (a)  that  the
transferee  is not a Plan and is not  acting  on  behalf  of a Plan or using the
assets of a Plan to effect such  purchase  or (b) subject to certain  conditions
described  in the  Agreement,  that the  source of funds used to  purchase  this
Certificate  is  an  "insurance  company  general  account,"  or  (ii)  if  such
transferee  is a Plan,  (a) an opinion of counsel  acceptable to and in form and
substance satisfactory to the Trust Administrator and the Seller with respect to
certain  matters  and (b) such other  documentation  as the Seller or the Master
Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 70.19306%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 29.87916667%;  (ii) the annual yield to maturity of
this Certificate,  compounded  monthly,  is approximately  11.69%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.12254431%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer



<PAGE>





                                   EXHIBIT B-5
                     [FORM OF FACE OF CLASS B-5 CERTIFICATE]

            THIS  CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES,  FINANCIAL  SECURITY,  THE CLASS B-1  CERTIFICATES,  THE CLASS B-2
CERTIFICATES,  THE CLASS B-3  CERTIFICATES  AND THE  CLASS B-4  CERTIFICATES  AS
DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

            THIS  CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED  UNDER THE
SECURITIES ACT OF 1933, AS AMENDED,  OR THE SECURITIES LAWS OF ANY STATE AND MAY
NOT BE RESOLD OR  TRANSFERRED  UNLESS IT IS REGISTERED  PURSUANT TO SUCH ACT AND
LAWS  OR  IS  SOLD  OR  TRANSFERRED  IN  TRANSACTIONS   WHICH  ARE  EXEMPT  FROM
REGISTRATION UNDER SUCH ACT AND UNDER APPLICABLE STATE LAW AND IS TRANSFERRED IN
ACCORDANCE  WITH THE  PROVISIONS  OF SECTION  5.02 OF THE POOLING AND  SERVICING
AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS B-5

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-5  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates,  Financial Security and each Class
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-5 Distribution  Amount required to be distributed to
Holders of the Class B-5  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-5 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-5 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-5  Certificate  will be made  unless such
transfer is exempt from the  registration  requirements of the Securities Act of
1933,  as  amended,  and  any  applicable  state  securities  laws or is made in
accordance  with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof,  (i) the transferee will be required to execute
an  investment  letter in the form  described in the  Agreement and (ii) if such
transfer  is to be made  within  three  years  from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any  affiliate  thereof  was  a  Holder  of  the  Certificates  proposed  to  be
transferred,  and unless  such  transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended,  the Trust  Administrator  or the Seller may
require  the Holder to deliver an opinion of counsel  acceptable  to and in form
and substance  satisfactory to the Trust  Administrator and the Seller that such
transfer is exempt (describing the applicable  exemption and the basis therefor)
from  or is  being  made  pursuant  to  the  registration  requirements  of  the
Securities Act of 1933, as amended,  and of any applicable statute of any state.
The Holder hereof desiring to effect such transfer shall,  and does hereby agree
to,  indemnify  the Trustee,  the Trust  Administrator,  the Seller,  the Master
Servicer,  and any  Paying  Agent  acting on  behalf of the Trust  Administrator
against any liability that may result if the transfer is not so exempt or is not
made in accordance with such Federal and state laws. In connection with any such
transfer, the Trust Administrator will also require (i) a representation letter,
in the  form  as  described  in the  Agreement,  stating  either  (a)  that  the
transferee  is not a Plan and is not  acting  on  behalf  of a Plan or using the
assets of a Plan to effect such  purchase  or (b) subject to certain  conditions
described  in the  Agreement,  that the  source of funds used to  purchase  this
Certificate  is  an  "insurance  company  general  account,"  or  (ii)  if  such
transferee  is a Plan,  (a) an opinion of counsel  acceptable to and in form and
substance satisfactory to the Trust Administrator and the Seller with respect to
certain  matters  and (b) such other  documentation  as the Seller or the Master
Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 53.53681%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 46.53541667%;  (ii) the annual yield to maturity of
this Certificate,  compounded  monthly,  is approximately  16.27%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.15900409%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer



<PAGE>






                                   EXHIBIT B-6
                     [FORM OF FACE OF CLASS B-6 CERTIFICATE]

            THIS  CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES,  FINANCIAL  SECURITY,  THE CLASS B-1  CERTIFICATES,  THE CLASS B-2
CERTIFICATES,  THE CLASS B-3  CERTIFICATES,  THE CLASS B-4  CERTIFICATES AND THE
CLASS B-5  CERTIFICATES  AS  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN.

            THIS  CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED  UNDER THE
SECURITIES ACT OF 1933, AS AMENDED,  OR THE SECURITIES LAWS OF ANY STATE AND MAY
NOT BE RESOLD OR  TRANSFERRED  UNLESS IT IS REGISTERED  PURSUANT TO SUCH ACT AND
LAWS  OR  IS  SOLD  OR  TRANSFERRED  IN  TRANSACTIONS   WHICH  ARE  EXEMPT  FROM
REGISTRATION UNDER SUCH ACT AND UNDER APPLICABLE STATE LAW AND IS TRANSFERRED IN
ACCORDANCE  WITH THE  PROVISIONS  OF SECTION  5.02 OF THE POOLING AND  SERVICING
AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS B-6

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-6  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates,  Financial Security and each Class
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-6 Distribution  Amount required to be distributed to
Holders of the Class B-6  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-6 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-6 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-6  Certificate  will be made  unless such
transfer is exempt from the  registration  requirements of the Securities Act of
1933,  as  amended,  and  any  applicable  state  securities  laws or is made in
accordance  with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof,  (i) the transferee will be required to execute
an  investment  letter in the form  described in the  Agreement and (ii) if such
transfer  is to be made  within  three  years  from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any  affiliate  thereof  was  a  Holder  of  the  Certificates  proposed  to  be
transferred,  and unless  such  transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended,  the Trust  Administrator  or the Seller may
require  the Holder to deliver an opinion of counsel  acceptable  to and in form
and substance  satisfactory to the Trust  Administrator and the Seller that such
transfer is exempt (describing the applicable  exemption and the basis therefor)
from  or is  being  made  pursuant  to  the  registration  requirements  of  the
Securities Act of 1933, as amended,  and of any applicable statute of any state.
The Holder hereof desiring to effect such transfer shall,  and does hereby agree
to,  indemnify  the Trustee,  the Trust  Administrator,  the Seller,  the Master
Servicer,  and any  Paying  Agent  acting on  behalf of the Trust  Administrator
against any liability that may result if the transfer is not so exempt or is not
made in accordance with such Federal and state laws. In connection with any such
transfer, the Trust Administrator will also require (i) a representation letter,
in the  form  as  described  in the  Agreement,  stating  either  (a)  that  the
transferee  is not a Plan and is not  acting  on  behalf  of a Plan or using the
assets of a Plan to effect such  purchase  or (b) subject to certain  conditions
described  in the  Agreement,  that the  source of funds used to  purchase  this
Certificate  is  an  "insurance  company  general  account,"  or  (ii)  if  such
transferee  is a Plan,  (a) an opinion of counsel  acceptable to and in form and
substance satisfactory to the Trust Administrator and the Seller with respect to
certain  matters  and (b) such other  documentation  as the Seller or the Master
Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 24.50556%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 75.56666667%;  (ii) the annual yield to maturity of
this Certificate,  compounded  monthly,  is approximately  34.42%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.13858197%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer



<PAGE>






                                    EXHIBIT C
                [Form of Reverse of Series 1999-18 Certificates]

                      NORWEST ASSET SECURITIES CORPORATION
                       MORTGAGE PASS-THROUGH CERTIFICATES
                                 SERIES 1999-18

            This  Certificate is one of a duly authorized  issue of Certificates
issued in several Classes  designated as Mortgage  Pass-Through  Certificates of
the Series specified hereon (herein collectively called the "Certificates").

            The  Certificates  are  limited  in  right  of  payment  to  certain
collections  and  recoveries   respecting  the  Mortgage  Loans,   all  as  more
specifically  set forth  herein  and in the  Agreement.  In the event  funds are
advanced with respect to any Mortgage Loan by a Servicer, the Master Servicer or
the Trust  Administrator,  such advances are reimbursable to such Servicer,  the
Master  Servicer  or the  Trust  Administrator  to the  extent  provided  in the
Agreement, from related recoveries on such Mortgage Loan or from other cash that
would have been distributable to Certificateholders.

            As  provided  in the  Agreement,  withdrawals  from the  Certificate
Account created for the benefit of Certificateholders  may be made by the Master
Servicer  from  time  to  time  for  purposes   other  than   distributions   to
Certificateholders,  such purposes  including  reimbursement to a Servicer,  the
Master Servicer or the Trust Administrator,  as applicable,  of advances made by
such Servicer, the Master Servicer or the Trust Administrator.

            The Agreement permits, with certain exceptions therein provided, the
amendment of the Agreement and the modification of the rights and obligations of
the Seller, the Master Servicer, the Trust Administrator and the Trustee and the
rights of the Certificateholders  under the Agreement at any time by the Seller,
the Master Servicer, the Trust Administrator and the Trustee with the consent of
the Holders of Certificates evidencing in the aggregate not less than 66 2/3% of
the Voting Interests of each Class of Certificates  affected  thereby.  Any such
consent by the Holder of this  Certificate  shall be  conclusive  and binding on
such  Holder  and  upon  all  future  holders  of  this  Certificate  and of any
Certificate  issued upon the  transfer  hereof or in exchange  hereof or in lieu
hereof whether or not notation of such consent is made upon the Certificate. The
Agreement also permits the amendment  thereof in certain  circumstances  without
the consent of the Holders of any of the Certificates.

            As provided  in the  Agreement  and  subject to certain  limitations
therein  set forth,  the  transfer of this  Certificate  is  registrable  in the
Certificate  Register upon surrender of this  Certificate  for  registration  of
transfer  at the office or agency  appointed  by the Trust  Administrator,  duly
endorsed by, or  accompanied by an assignment in the form below or other written
instrument of transfer in form  satisfactory to the Trust  Administrator and the
Certificate  Registrar,  duly  executed  by the Holder  hereof or such  Holder's
attorney duly authorized in writing,  and thereupon one or more new Certificates
of authorized  Denominations  evidencing the same Class and aggregate Percentage
Interest will be issued to the designated transferee or transferees.

            The  Certificates  are  issuable  only  as  registered  Certificates
without  coupons in Classes and  Denominations  specified in the  Agreement.  As
provided in the Agreement and subject to certain  limitations therein set forth,
Certificates are  exchangeable for new Certificates of authorized  Denominations
evidencing the same Class and aggregate Percentage Interest, as requested by the
Holder surrendering the same.

            No service charge will be made for any such registration of transfer
or  exchange,  but the Trust  Administrator  or the  Certificate  Registrar  may
require  payment  of a sum  sufficient  to cover  any tax or other  governmental
charge payable in connection therewith.

            The  Seller,  the  Master  Servicer,  the Trust  Administrator,  the
Trustee and the Certificate  Registrar,  and any agent of the Seller, the Master
Servicer, the Trust Administrator, the Trustee or the Certificate Registrar, may
treat the  Person in whose  name this  Certificate  is  registered  as the owner
hereof for all purposes,  and neither the Seller, the Master Servicer, the Trust
Administrator,  the Trustee, the Certificate  Registrar nor any such agent shall
be affected by notice to the contrary.

            The  obligations   created  by  the  Agreement  in  respect  of  the
Certificates  and the Trust Estate created thereby shall terminate upon the last
action required to be taken by the Trust Administrator on the Final Distribution
Date pursuant to the Agreement following the earlier of (i) the payment or other
liquidation (or advance with respect  thereto) of the last Mortgage Loan subject
thereto or the disposition of all property  acquired upon foreclosure or deed in
lieu of  foreclosure  of any Mortgage  Loan, and (ii) the purchase by the Seller
from the Trust Estate of all remaining  Mortgage Loans and all property acquired
in respect of such Mortgage Loans; provided, however, that the Trust Estate will
in no event  continue  beyond the  expiration  of 21 years from the death of the
last survivor of the  descendants of Joseph P. Kennedy,  the late  ambassador of
the  United  States  to the  Court  of St.  James,  living  on the  date  of the
Agreement.  The Agreement permits,  but does not require, the Seller to purchase
all  remaining  Mortgage  Loans and all  property  acquired  in  respect  of any
Mortgage Loan at a price  determined as provided in the Agreement.  The exercise
of such option will effect early  retirement of the  Certificates,  the Seller's
right to exercise  such option  being  subject to the Pool  Scheduled  Principal
Balance  of the  Mortgage  Loans as of the  Distribution  Date  upon  which  the
proceeds of such repurchase are  distributed  being less than ten percent of the
Cut-Off Date Aggregate Principal Balance.



<PAGE>




                                   ASSIGNMENT

FOR VALUE RECEIVED,  the undersigned  hereby sell(s),  assign(s) and transfer(s)
unto
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

            (Please print or typewrite name and address  including  postal zip
code of assignee)

the  beneficial   interest   evidenced  by  the  within  Mortgage   Pass-Through
Certificate and hereby  authorizes the transfer of registration of such interest
to assignee on the Certificate Register of the Trust Estate.

            I (We)  further  direct  the  Certificate  Registrar  to issue a new
Certificate  of a like  Denomination  or Percentage  Interest and Class,  to the
above named assignee and deliver such Certificate to the following address:

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

Social Security or other Identifying Number of Assignee:


- --------------------------------------------------------------------------------

Dated:





                                       -----------------------------------
                                          Signature by or on behalf of
                                          assignor


                                       -----------------------------------
                                          Signature Guaranteed



<PAGE>




                            DISTRIBUTION INSTRUCTIONS

            The  assignee   should   include  the   following  for  purposes  of
distribution:

            Distributions  shall be made, if the assignee is eligible to receive
distributions in immediately available funds, by wire transfer or otherwise,  in
immediately  available funds to  ______________________________________  for the
account  of   _______________________________________________   account   number
_________________________________,     or,    if    mailed    by    check,    to
_____________________________________________.  Applicable  statements should be
mailed to _________________________________________________________________.

            This information is provided by ______________________, the assignee
named above, or ___________________________________, as its agent.



<PAGE>





                                    EXHIBIT D

                                    RESERVED



<PAGE>






                                    EXHIBIT E

                               CUSTODIAL AGREEMENT

            THIS CUSTODIAL  AGREEMENT (as amended and supplemented  from time to
time,  the  "Agreement"),  dated as of  _____________,  by and among FIRST UNION
NATIONAL BANK, not individually,  but solely as Trust  Administrator  (including
its successors  under the Pooling and Servicing  Agreement  defined  below,  the
"Trust Administrator"),  NORWEST ASSET SECURITIES CORPORATION (together with any
successor  in  interest,  the  "Seller"),   NORWEST  BANK  MINNESOTA,   NATIONAL
ASSOCIATION  (together  with any  successor in interest or  successor  under the
Pooling and Servicing  Agreement  referred to below, the "Master  Servicer") and
___________________________  (together  with any  successor  in  interest or any
successor appointed hereunder, the "Custodian").

                               W I T N E S S E T H

            WHEREAS,  the Seller, the Master Servicer,  the Trust  Administrator
and United  States Trust  Company of New York,  as trustee,  have entered into a
Pooling  and  Servicing  Agreement  dated as of June 29,  1999  relating  to the
issuance of Mortgage Pass-Through Certificates,  Series 1999-18 (as in effect on
the date of this Agreement, the "Original Pooling and Servicing Agreement",  and
as amended  and  supplemented  from time to time,  the  "Pooling  and  Servicing
Agreement"); and

            WHEREAS,  the  Custodian  has  agreed  to act as agent for the Trust
Administrator  for the purposes of receiving and holding  certain  documents and
other  instruments  delivered  by the Seller  under the  Pooling  and  Servicing
Agreement,  all upon the terms and  conditions  and  subject to the  limitations
hereinafter set forth;

            NOW,  THEREFORE,  in  consideration  of the  premises and the mutual
covenants and agreements  hereinafter set forth,  the Trust  Administrator,  the
Seller, the Master Servicer and the Custodian hereby agree as follows:

                                    ARTICLE I

                                   DEFINITIONS

            Capitalized  terms used in this  Agreement  and not  defined  herein
shall  have  the  meanings  assigned  in  the  Original  Pooling  and  Servicing
Agreement, unless otherwise required by the context herein.

                                   ARTICLE II

                          CUSTODY OF MORTGAGE DOCUMENTS

            Section  2.1  Custodian  to Act as Agent;  Acceptance  of  Custodial
Files. The Custodian, as the duly appointed agent of the Trust Administrator for
these purposes,  acknowledges receipt of the Mortgage Notes, the Mortgages,  the
assignments and other documents relating to the Mortgage Loans identified on the
schedule  attached hereto and declares that it holds and will hold such Mortgage
Notes,  Mortgages,  assignments  and other  documents and any similar  documents
received  by  the  Trust  Administrator  subsequent  to  the  date  hereof  (the
"Custodial Files") as agent for the Trust  Administrator,  in trust, for the use
and  benefit  of  all  present  and  future   Certificateholders.

            Section  2.2  Recordation  of  Assignments.  If any  Custodial  File
includes one or more  assignments to the Trust  Administrator  of Mortgage Notes
and related Mortgages that have not been recorded, each such assignment shall be
delivered by the  Custodian to the Seller for the purpose of recording it in the
appropriate  public  office for real  property  records,  and the Seller,  at no
expense to the Custodian, shall promptly cause to be recorded in the appropriate
public office for real property  records each such  assignment and, upon receipt
thereof  from such  public  office,  shall  return each such  assignment  to the
Custodian.

            Section 2.3 Review of Custodial Files. The Custodian agrees, for the
benefit of  Certificateholders,  to review, in accordance with the provisions of
Section 2.01 of the Pooling and Servicing Agreement,  each Custodial File. If in
performing  the review  required  by this  Section 2.3 the  Custodian  finds any
document or documents  constituting  a part of a Custodial File to be missing or
defective in any material  respect,  the Custodian  shall promptly so notify the
Seller,   the  Master  Servicer  and  the  Trust   Administrator.

            Section  2.4  Notification  of  Breaches  of   Representations   and
Warranties. Upon discovery by the Custodian of a breach of any representation or
warranty  made by the Seller or the Master  Servicer as set forth in the Pooling
and Servicing  Agreement,  the Custodian shall give prompt written notice to the
Seller, the Master Servicer and the Trust  Administrator.

            Section 2.5 Custodian to Cooperate; Release of Custodial Files. Upon
the payment in full of any Mortgage Loan, or the receipt by the Master  Servicer
of a  notification  that payment in full will be escrowed in a manner  customary
for such purposes, the Master Servicer shall immediately notify the Custodian by
a  certification  (which  certification  shall include a statement to the effect
that all amounts  received or to be received  in  connection  with such  payment
which are  required  to be  deposited  in the  Certificate  Account  pursuant to
Section  3.02 of the Pooling  and  Servicing  Agreement  have been or will be so
deposited)  of a  Servicing  Officer  and shall  request  delivery  to it of the
Custodial File. The Custodian  agrees,  upon receipt of such  certification  and
request, promptly to release the related Custodial File to the Master Servicer.

            From time to time as is appropriate for the servicing or foreclosure
of any Mortgage  Loan,  the Master  Servicer  shall  deliver to the  Custodian a
certificate of a Servicing  Officer  requesting  that  possession of all, or any
document  constituting  part of, the  Custodial  File be  released to the Master
Servicer and  certifying as to the reason for such release and that such release
will not invalidate any insurance  coverage  provided in respect of the Mortgage
Loan. With such certificate,  the Master Servicer shall deliver to the Custodian
a receipt signed by a Servicing  Officer on behalf of the Master  Servicer,  and
upon receipt of the foregoing, the Custodian shall deliver the Custodial File or
such  document  to the Master  Servicer.  The Master  Servicer  shall cause each
Custodial  File or any  document  therein  so  released  to be  returned  to the
Custodian when the need therefor by the Master Servicer no longer exists, unless
(i) the Mortgage Loan has been liquidated and the Liquidation  Proceeds relating
to the  Mortgage  Loan have been  deposited  in the  Certificate  Account to the
extent  required by the Pooling and  Servicing  Agreement or (ii) the  Custodial
File or such document has been delivered to an attorney,  or to a public trustee
or other  public  official as required by law,  for  purposes of  initiating  or
pursuing legal action or other  proceedings for the foreclosure of the Mortgaged
Property  either  judicially  or  non-judicially,  and the Master  Servicer  has
delivered to the Custodian a certificate of a Servicing Officer certifying as to
the name and address of the Person to which such Custodial File or such document
were delivered and the purpose or purposes of such delivery. In the event of the
liquidation of a Mortgage  Loan,  the Custodian  shall deliver such receipt with
respect thereto to the Master  Servicer upon deposit of the related  Liquidation
Proceeds in the  Certificate  Account to the extent  required by the Pooling and
Servicing Agreement.  Section 2.6 Assumption  Agreements.  In the event that any
assumption agreement or substitution of liability agreement is entered into with
respect to any Mortgage Loan subject to this  Agreement in  accordance  with the
terms and provisions of the Pooling and Servicing Agreement, the Master Servicer
shall notify the Custodian that such  assumption or  substitution  agreement has
been completed by forwarding to the Custodian the original of such assumption or
substitution agreement,  which copy shall be added to the related Custodial File
and, for all purposes,  shall be considered a part of such Custodial File to the
same extent as all other documents and instruments  constituting  parts thereof.

                                  ARTICLE III

                            CONCERNING THE CUSTODIAN

            Section 3.1 Custodian a Bailee and Agent of the Trust Administrator.
With respect to each Mortgage Note,  Mortgage and other  documents  constituting
each  Custodian  File which are  delivered to the  Custodian,  the  Custodian is
exclusively  the  bailee  and  agent  of the  Trust  Administrator,  holds  such
documents for the benefit of  Certificateholders  and undertakes to perform such
duties and only such  duties as are  specifically  set forth in this  Agreement.
Except upon compliance with the provisions of Section 2.5 of this Agreement,  no
Mortgage  Note,  Mortgage or other  document  constituting a part of a Custodial
File shall be delivered by the Custodian to the Seller or the Master Servicer or
otherwise   released  from  the  possession  of  the   Custodian.

            Section 3.2  Indemnification.  The Seller hereby agrees to indemnify
and hold the  Custodian  harmless  from and  against  all  claims,  liabilities,
losses,  actions,  suits  or  proceedings  at law  or in  equity,  or any  other
expenses,  fees or charges of any  character or nature,  which the Custodian may
incur or with which the  Custodian may be threatened by reasons of its acting as
custodian  under this  Agreement,  including  indemnification  of the  Custodian
against  any and all  expenses,  including  attorney's  fees if counsel  for the
Custodian has been approved by the Seller, and the cost of defending any action,
suit or proceedings or resisting any claim. Notwithstanding the foregoing, it is
specifically  understood and agreed that in the event any such claim, liability,
loss,  action,  suit or proceeding or other expense,  fees, or charge shall have
been caused by reason of any negligent act, negligent failure to act, or willful
misconduct  on the part of the  Custodian,  or which shall  constitute a willful
breach of its duties hereunder, the indemnification provisions of this Agreement
shall not apply.

            Section 3.3  Custodian  May Own  Certificates.  The Custodian in its
individual or any other capacity may become the owner or pledgee of Certificates
with the same rights it would have if it were not Custodian.

            Section 3.4 Master  Servicer to Pay  Custodian's  Fees and Expenses.
The Master  Servicer  covenants and agrees to pay to the Custodian  from time to
time, and the Custodian shall be entitled to,  reasonable  compensation  for all
services rendered by it in the exercise and performance of any of the powers and
duties hereunder of the Custodian, and the Master Servicer will pay or reimburse
the Custodian upon its request for all reasonable  expenses,  disbursements  and
advances  incurred  or made  by the  Custodian  in  accordance  with  any of the
provisions of this  Agreement  (including the  reasonable  compensation  and the
expenses and  disbursements  of its counsel and of all persons not  regularly in
its employ), except any such expense,  disbursement or advance as may arise from
its  negligence  or  bad  faith.

            Section 3.5 Custodian  May Resign;  Trust  Administrator  May Remove
Custodian.  The  Custodian  may resign from the  obligations  and duties  hereby
imposed upon it as such obligations and duties relate to its acting as Custodian
of the Mortgage  Loans.  Upon  receiving such notice of  resignation,  the Trust
Administrator  shall either take custody of the Custodial  Files itself and give
prompt notice  thereof to the Seller,  the Master  Servicer and the Custodian or
promptly appoint a successor Custodian by written instrument,  in duplicate, one
copy of which instrument  shall be delivered to the resigning  Custodian and one
copy to the successor Custodian. If the Trust Administrator shall not have taken
custody of the  Custodial  Files and no successor  Custodian  shall have been so
appointed and have accepted  resignation,  the resigning  Custodian may petition
any  court  of  competent  jurisdiction  for  the  appointment  of  a  successor
Custodian.

            The Trust  Administrator  may remove the  Custodian at any time.  In
such  event,  the Trust  Administrator  shall  appoint,  or  petition a court of
competent  jurisdiction  to  appoint,  a  successor  Custodian  hereunder.   Any
successor Custodian shall be a depository  institution subject to supervision or
examination by federal or state authority and shall be able to satisfy the other
requirements contained in Section 3.7.

            Any  resignation  or removal of the Custodian and  appointment  of a
successor  Custodian pursuant to any of the provisions of this Section 3.5 shall
become effective upon acceptance of appointment by the successor Custodian.  The
Trust  Administrator  shall  give  prompt  notice to the  Seller  and the Master
Servicer of the appointment of any successor  Custodian.  No successor Custodian
shall have been appointed and accepted  appointment  by the Trust  Administrator
without the prior  approval of the Seller and the Master  Servicer.

            Section 3.6 Merger or  Consolidation  of Custodian.  Any Person into
which  the  Custodian  may be  merged  or  converted  or  with  which  it may be
consolidated,   or  any  Person   resulting  from  any  merger,   conversion  or
consolidation to which the Custodian shall be a party, or any Person  succeeding
to the  business  of the  Custodian,  shall be the  successor  of the  Custodian
hereunder,  without the  execution  or filing of any paper or any further act on
the  part  of  any  of the  parties  hereto,  anything  herein  to the  contrary
notwithstanding.

            Section 3.7  Representations of the Custodian.  The Custodian hereby
represents  that  it is a  depository  institution  subject  to  supervision  or
examination by a federal or state authority,  has a combined capital and surplus
of at least  $10,000,000 and is qualified to do business in the  jurisdiction in
which it will hold any Custodian File.

                                   ARTICLE IV

                            MISCELLANEOUS PROVISIONS

            Section 4.1 Notices. All notices, requests, consents and demands and
other  communications  required  under this  Agreement  or pursuant to any other
instrument  or document  delivered  hereunder  shall be in writing  and,  unless
otherwise  specifically  provided,  may be delivered personally,  by telegram or
telex,  or by registered or certified  mail,  postage  prepaid,  return  receipt
requested,  at the  addresses  specified on the  signature  page hereof  (unless
changed by the particular party whose address is stated herein by similar notice
in writing),  in which case the notice will be deemed  delivered  when received.


            Section  4.2   Amendments.   No  modification  or  amendment  of  or
supplement to this Agreement  shall be valid or effective  unless the same is in
writing and signed by all  parties  hereto,  and neither the Seller,  the Master
Servicer  nor the Trust  Administrator  shall  enter into any  amendment  hereof
except  as  permitted  by  the  Pooling  and  Servicing  Agreement.   The  Trust
Administrator  shall give prompt  notice to the  Custodian  of any  amendment or
supplement to the Pooling and Servicing Agreement and furnish the Custodian with
written  copies  thereof.

            Section 4.3 Governing Law. This Agreement shall be deemed a contract
made under the laws of the State of New York and shall be construed and enforced
in  accordance  with and governed by the laws of the State of New York.

            Section 4.4  Recordation  of Agreement.  To the extent  permitted by
applicable  law, this  Agreement is subject to  recordation  in all  appropriate
public offices for real property records in all the counties or other comparable
jurisdictions in which any or all of the properties subject to the Mortgages are
situated,  and in any other  appropriate  public  recording office or elsewhere,
such  recordation  to be effected by the Master  Servicer  and at its expense on
direction by the Trust Administrator,  but only upon direction accompanied by an
Opinion  of  Counsel  to  the  effect  that  such  recordation   materially  and
beneficially affects the interests of the Certificateholders.

            For the purpose of facilitating the recordation of this Agreement as
herein  provided  and  for  other  purposes,  this  Agreement  may  be  executed
simultaneously in any number of counterparts,  each of which  counterparts shall
be deemed to be an original,  and such counterparts shall constitute but one and
the same instrument.

            Section 4.5  Severability  of Provisions.  If any one or more of the
covenants,  agreements,  provisions or terms of this Agreement  shall be for any
reason whatsoever held invalid, then such covenants,  agreements,  provisions or
terms  shall be  deemed  severable  from the  remaining  covenants,  agreements,
provisions or terms of this Agreement and shall in no way affect the validity or
enforceability  of the other provisions of this Agreement or of the Certificates
or the rights of the holders thereof.



<PAGE>




            IN WITNESS WHEREOF,  this Agreement is executed as of the date first
above written.


Address:                                 FIRST UNION NATIONAL BANK

230 South Tryon Street                   By:
                                            ------------------------------
Charlotte, North Carolina, 28288         Name:
                                              ----------------------------
                                         Title:
                                               ---------------------------

Address:                                 NORWEST ASSET SECURITIES
                                            CORPORATION
7485 New Horizon Way
Frederick, Maryland 21703                By:
                                            ------------------------------
                                         Name:
                                              ----------------------------
                                         Title:
                                               ---------------------------

Address:                                 NORWEST BANK MINNESOTA, NATIONAL
                                            ASSOCIATION
7485 New Horizon Way
Frederick, Maryland 21703                By:
                                            ------------------------------
                                         Name:
                                             -----------------------------
                                         Title:
                                               ---------------------------

Address:                                 [CUSTODIAN]

                                         By:
                                            ------------------------------
                                         Name:
                                              ----------------------------
                                         Title:
                                               ---------------------------




<PAGE>




STATE OF          )
                  :  ss.:
COUNTY OF         )

            On this ____ day of _________,  19__,  before me, a notary public in
and for the State of ____________, personally appeared _______________, known to
me  who,  being  by me duly  sworn,  did  depose  and say  that  he  resides  at
__________________________;   that  he  is  the   __________  of  Norwest  Asset
Securities Corporation a Delaware corporation,  one of the parties that executed
the  foregoing  instrument;  and that he signed his name thereto by order of the
Board of Directors of said corporation.



                                             -----------------------------------
                                                      Notary Public



[NOTARIAL SEAL]



<PAGE>




STATE OF          )
                  :  ss.:
COUNTY OF         )

            On this ____ day of _________,  19__,  before me, a notary public in
and for the State of ____________, personally appeared _______________, known to
me  who,  being  by me duly  sworn,  did  depose  and say  that  he  resides  at
__________________________; that he is the __________ of Norwest Bank Minnesota,
National  Association,  a national banking association,  one of the parties that
executed the foregoing instrument;  and that he signed his name thereto by order
of the Board of Directors of said corporation.



                                             -----------------------------------
                                                      Notary Public



[NOTARIAL SEAL]



<PAGE>




STATE OF          )
                  :  ss.:
COUNTY OF         )

            On this ___ day of ________, 19__, before me, a notary public in and
for the State of ____________,  personally appeared __________ _________,  known
to me who,  being  by me duly  sworn,  did  depose  and say that he  resides  at
__________________________;  that he is the  ____________________ of First Union
National Bank, a national banking association,  one of the parties that executed
the  foregoing  instrument;  and that he signed his name thereto by order of the
Board of Directors of said association.



                                             -----------------------------------

                                                      Notary Public



[NOTARIAL SEAL]



<PAGE>




STATE OF          )
                  :  ss.:
COUNTY OF         )

            On this ____ day of ________, 19 , before me, a notary public in and
for the State of __________, personally appeared __________ __________, known to
me  who,  being  by me duly  sworn,  did  depose  and say  that  he  resides  at
__________________________;   that   he  is   the   _______________________   of
______________________,  a  _________________________,  one of the parties  that
executed the foregoing instrument;  and that he signed his name thereto by order
of the Board of Directors of said association.



                                             -----------------------------------

                                                      Notary Public



[NOTARIAL SEAL]



<PAGE>






                                   EXHIBIT F-1

            [Schedule of Mortgage Loans Serviced by Norwest Mortgage
                 from locations other than Frederick, Maryland]


<TABLE>
NASCOR
NMI / 1999-18 Exhibit F-1
30 YEAR FIXED RATE NON-RELOCATION LOANS
<CAPTION>


(i)             (ii)                                        (iii)       (iv)        (v)          (vi)          (vii)       (viii)
- -----           ---------------------------       -----   --------    --------    --------    ----------     --------    ----------
                                                                                    NET
MORTGAGE                                                              MORTGAGE    MORTGAGE     CURRENT       ORIGINAL     SCHEDULED
LOAN                                               ZIP    PROPERTY    INTEREST    INTEREST     MONTHLY        TERM TO     MATURITY
NUMBER          CITY                 STATE        CODE      TYPE        RATE        RATE       PAYMENT       MATURITY       DATE
- --------        ----------------------------------------------------- --------    --------    ----------     --------    -----------
<S>            <C>                  <C>         <C>        <C>       <C>         <C>        <C>               <C>       <C>
7366607         AURORA                 IL         60504      PUD       7.500       6.500      $1,809.57         360       1-Apr-29
7574960         HOFFMAN ESTATES        IL         60195      SFD       7.000       6.500      $1,922.73         360       1-Feb-29
7579116         KILDEER                IL         60047      SFD       7.375       6.500      $2,002.96         360       1-Apr-29
7644664         GOLDEN VALLEY          MN         55416      SFD       7.125       6.500      $2,455.70         360       1-May-29
7644956         ORLAND PARK            IL         60462      SFD       7.125       6.500      $2,526.44         360       1-May-29
7682336         LOWER MERION TWP       PA         19072      SFD       7.250       6.500      $2,032.89         360       1-May-29
7698955         EAGAN                  MN         55123      SFD       6.875       6.500      $1,691.70         360       1-May-29


</TABLE>

<TABLE>

NASCOR
NMI / 1999-18 Exhibit F-1
30 YEAR FIXED RATE NON-RELOCATION LOANS

(continued)
<CAPTION>

(i)               (ix)         (x)        (xi)     (xii)           (xiii)        (xIv)       (xv)       (xvI)
- -----         -------------- ------     ---------  ----------     --------    ----------- --------------------
                CUT-OFF
MORTGAGE          DATE                             MORTGAGE                     T.O.P.      MASTER      FIXED
LOAN           PRINCIPAL                           INSURANCE      SERVICE      MORTGAGE    SERVICE    RETAINED
NUMBER          BALANCE        LTV       SUBSIDY   CODE             FEE          LOAN        FEE        YIELD
- --------      -------------- ------     ---------  ----------     --------    ----------- --------------------
<S>         <C>             <C>         <C>         <C>          <C>         <C>         <C>          <C>
7366607       $ 258,414.66    90.00                         24     0.250                    0.017       0.733
7574960       $ 287,588.83    72.25                                0.250                    0.017       0.233
7579116       $ 289,557.31    80.00                                0.250                    0.017       0.608
7644664       $ 364,208.52    90.00                         06     0.250                    0.017       0.358
7644956       $ 374,700.12    65.22                                0.250                    0.017       0.358
7682336       $ 297,767.53    76.41                                0.250                    0.017       0.483
7698955       $ 257,300.66    88.03                         06     0.250                    0.017       0.108

             $2,129,537.63


COUNT:                         7
WAC:                 7.174889702
WAM:                 358.3375377
WALTV:               79.74477533


</TABLE>



<PAGE>
                                  EXHIBIT F-2

           [Schedule of Mortgage Loans Serviced by Norwest Mortgage in
                              Frederick, Maryland]




<TABLE>
NASCOR
NMI / 1999-18 Exhibit F-2
30 YEAR FIXED RATE NON-RELOCATION LOANS
<CAPTION>


(i)                   (ii)                                               (iii)        (iv)          (v)           (vi)      (vii)
- -----                 -----------------------------        -----        --------    --------      --------     ---------- --------
                                                                                                    NET
MORTGAGE                                                                            MORTGAGE      MORTGAGE       CURRENT  ORIGINAL
LOAN                                                        ZIP         PROPERTY    INTEREST      INTEREST       MONTHLY   TERM TO
NUMBER                CITY                    STATE         CODE          TYPE        RATE          RATE         PAYMENT  MATURITY
- --------              ----------------------------------------------------------    --------      --------     ---------- --------
<S>                  <C>                      <C>        <C>            <C>         <C>          <C>          <C>          <C>
6518705               JONESBORO                GA          30236          SFD         7.125        6.500        $2,048.10    360
6593778               DALY CITY                CA          94014          SFD         7.125        6.500        $2,108.74    360
6615468               WINTER PARK              CO          80482          SFD         7.000        6.500        $1,989.25    360
6667853               DRIPPING SPRINGS         TX          78620          PUD         7.250        6.500        $1,937.38    360
6691861               CAMARILLO                CA          93012          SFD         7.375        6.500        $1,673.16    360
6713160               BRIDGEWATER              NJ          08807          SFD         7.250        6.500        $3,820.19    360
6734357               SHOREVIEW                MN          55126          SFD         7.250        6.500        $2,708.24    360
6765188               CHESTER TWP              NJ          07930          SFD         7.750        6.500        $2,745.29    360
6790957               NIWOT                    CO          80503          PUD         7.000        6.500        $3,326.51    360
6792141               HOPEWELL TWP             NJ          08540          SFD         7.500        6.500        $3,327.62    360
6802031               COLLEGE STATION          TX          77845          SFD         7.625        6.500        $2,180.00    360
6802407               FREDERICKSBURG           VA          22407          PUD         7.250        6.500        $1,705.44    360
6827238               LANDENBERG               PA          19350          SFD         6.625        6.358        $1,803.12    360
6829093               CORNELIUS                NC          28031          SFD         7.125        6.500        $1,684.30    360
6835944               SANDIA PARK              NM          87047          SFD         7.250        6.500        $2,236.17    360
6853704               MESA                     AZ          85207          PUD         7.375        6.500        $2,171.14    360
6855056               PLATTEVILLE              CO          80651          SFD         7.000        6.500        $2,568.07    360
6879890               CAMARILLO                CA          93010          SFD         6.625        6.358        $2,626.56    360
6880358               STILLWATER               MN          55082          SFD         7.125        6.500        $2,775.72    360
6896945               ALISO VIEJO              CA          92656          LCO         7.500        6.500        $1,677.77    360
6898485               ALTADENA                 CA          91001          PUD         7.250        6.500        $3,106.04    360
6901875               MAMMOTH LAKES            CA          93546          SFD         7.250        6.500        $2,380.80    360
6914338               LIVERMORE                CA          94550          SFD         7.125        6.500        $2,147.66    360
6934246               SAN DIEGO                CA          92131          PUD         7.250        6.500        $3,376.77    360
6943858               DAVIS                    CA          95616          PUD         7.500        6.500        $2,181.55    360
6944663               SAN PEDRO                CA          90732          LCO         7.125        6.500        $1,564.04    360
6948016               CHAPEL HILL              NC          27514          SFD         7.500        6.500        $2,796.86    360
6956720               IRVINE                   CA          92620          SFD         7.375        6.500        $3,716.18    360
7021737               SCOTTSDALE               AZ          85255          SFD         7.125        6.500        $2,174.36    360
7022390               STERLING HEIGHTS         MI          48317          SFD         7.250        6.500        $1,882.81    360
7024348               LOVELAND                 CO          80537          SFD         6.875        6.500        $2,079.18    360
7024762               SUGAR LAND               TX          77479          PUD         6.875        6.500        $2,627.72    360
7034765               SN JN CAPISTRANO         CA          92675          SFD         7.500        6.500        $1,889.00    360
7037809               SANTA FE                 NM          87501          SFD         7.125        6.500        $1,953.78    360
7046652               CHESTER                  VA          23831          SFD         7.000        6.500        $1,745.75    360
7047630               TRACY                    CA          95376          SFD         7.250        6.500        $1,803.16    360
7072590               AVONDALE                 PA          19311          SFD         6.750        6.483        $2,270.09    360
7072868               LEXINGTON                KY          40509          SFD         6.750        6.483        $1,546.91    360
7073284               GERMANTOWN               TN          38138          SFD         6.750        6.483        $2,244.15    360
7075360               WASHINGTON TWP           NJ          07853          SFD         7.250        6.500        $3,083.44    360
7076888               CHINO HILLS              CA          91709          SFD         7.125        6.500        $3,497.95    360
7084680               PARK CITY                UT          84098          SFD         7.125        6.500        $2,358.01    360
7094296               PACIFICA                 CA          94044          SFD         7.125        6.500        $2,748.93    360
7098290               BASALT                   CO          81621          SFD         7.250        6.500        $3,410.88    360
7110536               CARLSBAD                 CA          92009          SFD         7.125        6.500        $2,408.54    360
7111419               NEW YORK                 NY          10031          SFD         7.500        6.500        $2,543.39    360
7117092               NAPLES                   FL          34105          PUD         7.125        6.500        $2,021.16    360
7122192               LOVELAND                 CO          80538          SFD         7.000        6.500        $1,829.58    360
7123990               MARTINSBURG              WV          25401          SFD         7.500        6.500        $1,794.32    360
7138265               PHOENIX                  AZ          85045          PUD         7.250        6.500        $2,042.81    360
7141908               SAN DIEGO                CA          92130          SFD         7.000        6.500        $3,610.26    360
7142752               SAN JOSE                 CA          95117          LCO         7.000        6.500         $793.37     360
7143276               CARNELIAN BAY            CA          96140          SFD         7.250        6.500        $2,460.35    360
7154496               CALABASAS                CA          91302          SFD         7.375        6.500        $2,392.50    360
7165792               DIVIDE                   CO          80814          SFD         7.625        6.500        $1,104.16    360
7169345               COTTONWOOD               CA          96022          SFD         7.500        6.500        $2,936.70    360
7184777               WALPOLE                  MA          02081          SFD         6.750        6.483        $3,473.24    360
7185018               SUNSET HILLS             MO          63128          SFD         7.250        6.500        $2,948.95    360
7189071               DENVER                   CO          80203          HCO         7.125        6.500        $1,684.30    360
7189072               SEA ISLE CITY            NJ          08243          LCO         7.750        6.500         $895.52     360
7201196               OLD BRIDGE               NJ          08857          PUD         7.750        6.500         $838.20     360
7201530               GILROY                   CA          95020          SFD         6.875        6.500        $1,911.66    360
7201882               SAN DIEGO                CA          92130          SFD         7.000        6.500        $3,541.07    360
7205497               KALAMAZOO                MI          49009          SFD         6.750        6.483        $1,232.34    360
7214290               WEST LINN                OR          97068          SFD         7.250        6.500        $5,413.75    360
7215298               CHANHASSEN               MN          55317          PUD         7.000        6.500        $1,962.64    360
7227154               WINCHESTER               VA          22601          SFD         7.375        6.500        $1,989.14    360
7229545               UPPER FREEHOLD TW        NJ          08501          SFD         7.125        6.500        $1,711.58    360
7235901               BOULDER                  CO          80302          SFD         7.375        6.500        $1,705.31    360
7259014               GRANGER                  IA          50109          SFD         7.000        6.500        $1,962.64    360
7283222               MT OLIVE TWP             NJ          07828          SFD         7.250        6.500        $1,818.34    360
7283498               LAKE ALMANOR             CA          96137          SFD         7.375        6.500         $725.21     360
7286170               DARNESTOWN               MD          20878          SFD         6.750        6.483        $1,945.79    360
7316278               PRINCETON JCT            NJ          08550          SFD         7.000        6.500        $3,126.92    360
7323134               READINGTON TWP           NJ          08889          SFD         7.375        6.500        $3,037.67    360
7325165               YORBA LINDA              CA          92887          SFD         6.625        6.358        $3,900.77    360
7328806               LAKE FOREST              CA          92630          SFD         7.125        6.500        $1,645.99    312
7330237               DARNESTOWN               MD          20878          SFD         6.750        6.483        $2,918.69    360
7330287               SAN DIEGO                CA          92130          SFD         7.000        6.500        $3,197.11    360
7352434               HEBER CITY               UT          84032          SFD         7.000        6.500        $1,969.30    360
7355351               YORBA LINDA              CA          92887          SFD         7.000        6.500        $1,829.58    360
7373266               SAN DIEGO                CA          92121          PUD         6.875        6.500        $2,323.56    360
7380308               SANTA ROSA               CA          95409          SFD         7.000        6.500        $2,246.47    360
7381263               VALENCIA                 CA          91354          LCO         7.000        6.500         $798.36     360
7382045               CHESTERFIELD             MO          63017          SFD         7.250        6.500        $2,319.40    360
7389459               ROCKVILLE                MD          20850          SFD         7.000        6.500        $2,760.01    360
7391326               FORT COLLINS             CO          80528          SFD         6.875        6.500        $1,988.35    360
7400056               HALF MOON BAY            CA          94019          SFD         6.875        6.500        $3,187.42    360
7409542               LOS ANGELES              CA          90068          LCO         7.750        6.500         $671.64     360
7409797               CLARKSTON                MI          48348          SFD         7.250        6.500        $3,056.83    360
7416490               SEATTLE                  WA          98112          SFD         7.625        6.500        $4,848.39    360
7420497               COULTERVILLE             CA          95311          SFD         7.125        6.500        $1,037.53    360
7430734               ROCKVILLE                MD          20850          SFD         7.000        6.500        $3,065.05    360
7440280               LANGHORNE                PA          19047          PUD         7.625        6.500        $1,248.12    360
7440512               WEST HILLS               CA          91367          SFD         7.375        6.500        $3,588.28    360
7442551               OAK PARK                 CA          91301          SFD         6.750        6.483        $3,576.37    360
7442649               CAMARILLO                CA          93012          SFD         7.375        6.500        $2,425.31    360
7443914               MURRIETA                 CA          93562          SFD         7.250        6.500        $1,723.52    360
7448102               HOPKINS                  MN          55343          SFD         7.000        6.500        $2,208.80    360
7448568               MAMMOTH LAKES            CA          93546          LCO         7.250        6.500         $361.55     360
7450930               CRYSTAL LAKE             IL          60012          SFD         7.250        6.500        $1,898.50    360
7455285               SAN DIEGO                CA          92173          PUD         6.625        6.358        $1,913.57    360
7455408               RIDGWAY                  CO          81432          SFD         7.250        6.500        $2,387.62    360
7462083               BENICIA                  CA          94510          SFD         7.375        6.500        $1,937.58    360
7462561               CRANFORD                 NJ          07016          SFD         7.375        6.500        $2,486.43    360
7465216               MORGAN HILL              CA          95037          SFD         7.250        6.500        $2,232.08    360
7467954               FAWNSKIN                 CA          92333          SFD         7.500        6.500         $922.96     360
7469005               OAK PARK                 CA          91301          SFD         6.625        6.358        $2,509.38    360
7482734               SAN DIEGO                CA          92131          PUD         6.875        6.500        $2,956.18    360
7482806               LAUREL                   MD          20707          SFD         7.625        6.500        $1,971.21    360
7491478               IRVINE                   CA          92606          SFD         7.000        6.500        $1,992.76    360
7493609               ALPHARETTA               GA          30022          SFD         7.250        6.500        $2,070.52    360
7495072               CASTLE ROCK              CO          80104          PUD         7.375        6.500        $3,453.38    360
7508145               EAGLE                    ID          83616          SFD         7.000        6.500        $1,886.27    360
7513750               CARLSBAD                 CA          92009          PUD         7.000        6.500        $1,663.26    360
7520997               SNOWMASS                 CO          81654          PUD         7.125        6.500        $2,209.80    360
7525792               SANTEE                   CA          92071          SFD         7.500        6.500        $2,097.64    360
7529063               DEEPHAVEN                MN          55391          SFD         6.750        6.483        $1,899.10    360
7529946               PALO ALTO                CA          94303          SFD         6.875        6.500        $2,890.49    360
7531624               CAMARILLO                CA          93012          SFD         7.250        6.500        $1,837.78    360
7535075               DALY CITY                CA          94014          SFD         7.125        6.500        $2,012.84    360
7540564               MISSION VIEJO            CA          92692          PUD         7.125        6.500        $2,502.80    360
7542575               SANTA CLARA              CA          95051          SFD         7.375        6.500        $1,968.42    360
7542921               ST CHARLES               IL          60175          SFD         7.125        6.500        $2,304.12    360
7544354               LITTLETON                CO          80128          SFD         7.000        6.500        $2,260.03    360
7545213               SALINAS                  CA          93907          SFD         7.625        6.500        $1,781.87    360
7549433               BEVERLY HILLS            CA          90212          LCO         7.250        6.500         $832.26     360
7550599               HOUSTON                  TX          77006          SFD         7.125        6.500        $2,371.49    360
7551587               CLE ELUM                 WA          98922          SFD         7.625        6.500        $1,061.69    360
7560700               CARLSBAD                 CA          92009          PUD         7.250        6.500        $3,107.31    360
7561529               LOS ANGELES              CA          91340          LCO         8.000        6.500         $247.65     360
7561535               TELLURIDE                CO          81435          LCO         7.375        6.500        $1,712.87    360
7562115               BEDMINSTER               NJ          07921          SFD         7.750        6.500        $2,052.52    360
7563480               MAHWAH                   NJ          07670          LCO         7.250        6.500        $2,312.58    360
7563830               FALLS CHURCH             VA          22046          SFD         6.500        6.233        $2,528.27    360
7565358               EDGEWATER                MD          21037          SFD         7.250        6.500        $1,773.66    360
7565752               EMERYVILLE               CA          94608          LCO         7.500        6.500        $2,622.05    360
7566373               PLEASANTON               CA          94566          PUD         7.375        6.500        $3,971.38    360
7566768               CAMARILLO                CA          93012          SFD         7.125        6.500        $2,135.01    360
7568183               ATKINSON                 NH          03811          SFD         7.250        6.500        $2,046.53    360
7568658               SAN DIEGO                CA          92130          PUD         7.000        6.500        $2,362.82    360
7569674               BRISBANE                 CA          94005          LCO         7.250        6.500        $1,868.48    360
7569844               GLENVIEW                 IL          60025          SFD         7.000        6.500        $2,528.15    360
7570149               REDDING                  CA          96001          SFD         7.000        6.500        $1,969.30    360
7571629               GLENDALE                 CA          91214          SFD         7.500        6.500        $1,943.82    360
7572575               YONKERS                  NY          10705          SFD         7.375        6.500        $1,421.06    360
7573137               FALLS CHURCH             VA          22046          SFD         6.500        6.233        $3,255.15    360
7573563               HOLUALOA                 HI          96725          LCO         7.375        6.500         $411.64     360
7579331               CAMARILLO                CA          93012          SFD         7.250        6.500        $1,798.22    360
7579978               ROCHESTER                MI          48307          SFD         7.125        6.500        $2,593.82    360
7580261               EDEN PRAIRIE             MN          55347          PUD         7.750        6.500         $716.41     360
7580383               UNION CITY               CA          94587          SFD         7.250        6.500        $2,014.52    360
7584049               MURRIETA                 CA          92562          SFD         7.625        6.500        $1,811.95    360
7585262               BENICIA                  CA          94510          SFD         6.875        6.500        $2,140.41    360
7587498               THOUSAND OAKS            CA          91320          PUD         7.000        6.500        $1,975.95    360
7589106               ASPEN                    CO          81611          LCO         7.125        6.500        $4,333.36    360
7589365               SAN DEIGO                CA          90402          SFD         7.250        6.500        $4,945.78    360
7590390               CARLSBAD                 CA          92009          SFD         7.000        6.500        $1,794.92    360
7590589               ALISO VIEJO AREA         CA          92656          PUD         7.375        6.500        $2,943.66    360
7591725               NEENAH                   WI          54956          SFD         6.750        6.483        $1,852.40    360
7592412               ARLINGTON HEIGHTS        IL          60005          SFD         7.375        6.500        $1,933.89    360
7593170               CHULA VISTA              CA          91915          SFD         7.125        6.500        $1,810.28    360
7596229               COROLLA                  NC          27927          SFD         7.500        6.500        $3,496.07    360
7597480               ASPEN                    CO          81611          LCO         7.125        6.500        $1,347.44    360
7597513               BARRINGTON               IL          60010          SFD         7.500        6.500        $1,963.39    360
7598203               PLEASANTON               CA          94566          PUD         7.250        6.500        $1,807.77    360
7599108               CORONA                   CA          91719          SFD         7.000        6.500        $1,716.65    360
7599312               HOUSTON                  TX          77095          PUD         7.000        6.500        $2,457.52    360
7604211               PALM BEACH               FL          33480          SFD         6.750        6.483        $2,294.09    360
7604818               FORT COLLINS             CO          80524          SFD         7.000        6.500        $2,298.62    360
7605875               OAK RIDGE                NC          27310          SFD         6.875        6.500        $1,653.82    360
7605980               SAN FRANCISCO            CA          94112          SFD         6.750        6.483        $1,783.64    360
7606493               ATASCADERO               CA          93422          SFD         7.500        6.500        $2,272.45    360
7606544               DULUTH                   GA          30097          PUD         7.250        6.500        $1,870.51    360
7608155               POOLESVILLE              MD          20837          SFD         7.250        6.500        $2,488.58    360
7610281               NEW CANAAN               CT          06840          SFD         7.125        6.500        $2,122.21    360
7610472               WEST BLOOMFIELD          MI          48323          SFD         7.125        6.500        $4,732.87    360
7610724               SALT LAKE CITY           UT          84109          SFD         7.250        6.500        $2,728.71    360
7612340               SANTA ANA                CA          92705          SFD         7.125        6.500        $1,852.73    360
7614664               FREMONT                  CA          94536          SFD         7.375        6.500        $2,022.30    360
7615076               DANVILLE                 CA          94506          PUD         7.125        6.500        $2,893.53    360
7615129               FREMONT                  CA          94539          SFD         7.375        6.500        $3,323.97    360
7615476               WASHINGTON               DC          20015          SFD         7.500        6.500        $1,817.26    360
7616255               CHULA VISTA              CA          91915          SFD         7.375        6.500        $1,851.01    360
7616602               HUNTSVILLE               TX          77340          SFD         6.875        6.500        $2,627.72    360
7617195               LAS VEGAS                NV          89117          SFD         8.125        6.500         $885.43     360
7617781               TENAFLY BOROUGH          NJ          07670          SFD         7.125        6.500        $3,466.28    360
7618681               RYE BROOK                NY          10573          SFD         7.375        6.500        $2,331.03    360
7619822               LORTON                   VA          22079          SFD         6.875        6.500        $1,786.06    360
7620296               WESTHAMPTON              NY          11977          SFD         7.125        6.500        $1,812.98    360
7620360               AKRON                    OH          44333          SFD         6.875        6.500        $2,496.33    360
7620930               NEWPORT COAST            CA          92657          SFD         7.250        6.500        $4,303.71    360
7621196               VIRGINIA BEACH           VA          23456          SFD         7.500        6.500        $1,705.73    360
7621240               EDEN PRAIRIE             MN          55346          SFD         7.250        6.500        $2,428.55    360
7622122               CYPRESS                  CA          90630          SFD         7.500        6.500        $2,328.38    360
7622697               THOUSAND OAKS            CA          91362          SFD         6.875        6.500        $1,182.47    360
7622737               FALLS CHURCH             VA          22044          SFD         7.000        6.500        $2,328.56    360
7622912               MORRISON                 CO          80465          SFD         7.750        6.500         $938.50     360
7622934               AVALON                   NJ          08202          SFD         6.500        6.233        $3,160.34    360
7624760               PISMO BEACH              CA          93449          SFD         7.250        6.500        $2,217.07    360
7625926               SAN DIEGO                CA          92173          SFD         7.125        6.500        $1,933.24    360
7626203               ATLANTA                  GA          30327          SFD         8.000        6.500        $2,316.86    360
7629781               LIBERTYVILLE             IL          60048          SFD         7.250        6.500        $3,796.31    360
7629947               PHOENIX                  AZ          85013          SFD         6.750        6.483        $2,107.94    360
7630443               INVER GROVE HEIGH        MN          55075          SFD         7.250        6.500        $1,855.52    360
7630634               IRVINE                   CA          92602          SFD         6.875        6.500        $1,970.79    360
7630636               SILVERTHORNE             CO          80498          SFD         7.250        6.500        $1,023.26    360
7631084               PASADENA                 CA          91105          SFD         7.375        6.500        $2,558.95    360
7631998               SAN JOSE                 CA          95117          SFD         7.125        6.500        $1,778.62    360
7633448               SAN FRANCISCO            CA          94133          LCO         7.375        6.500        $2,636.31    360
7633809               MAHWAH                   NJ          07430          LCO         7.250        6.500        $2,578.63    360
7633978               WASHINGTON               DC          20007          SFD         7.250        6.500        $3,547.32    360
7635306               DENVER                   CO          80236          SFD         7.500        6.500        $1,590.71    360
7636731               SAN JOSE                 CA          95133          SFD         7.000        6.500        $1,962.64    360
7637187               PARK CITY                UT          84098          SFD         7.625        6.500        $1,064.52    360
7637927               RANCHO MIRAGE            CA          92270          SFD         7.125        6.500        $2,344.54    360
7638543               DANA POINT               CA          92629          PUD         7.000        6.500        $2,960.60    360
7639472               BATTLE CREEK             MI          49017          SFD         7.000        6.500        $1,916.07    360
7639606               CHINO HILLS              CA          91709          SFD         7.125        6.500        $2,332.75    360
7640454               FAIRFAX                  CA          94930          SFD         8.000        6.500        $2,344.38    360
7641928               COLORADO SPRINGS         CO          80919          SFD         7.250        6.500        $1,910.09    360
7642554               CHINO HILLS              CA          91709          SFD         6.875        6.500        $2,397.79    360
7642613               CAMDEN                   ME          04843          SFD         7.250        6.500        $2,575.22    360
7642615               OAKLAND                  CA          94611          SFD         6.875        6.500        $2,131.73    360
7642777               MORAGA                   CA          94556          SFD         7.000        6.500        $2,967.25    360
7642839               CHARLESTOWN              MA          02129          LCO         6.875        6.500        $2,680.27    360
7642877               MINNETONKA               MN          55305          SFD         7.250        6.500        $2,455.83    360
7642898               CAPISTRANO BEACH         CA          92624          SFD         7.000        6.500        $2,288.64    360
7642921               SAN CLEMENTE             CA          92673          SFD         7.125        6.500        $5,423.43    360
7643464               HAWORTH BOROUGH          NJ          07624          SFD         7.250        6.500        $1,910.09    360
7643493               PRINCETON TWP            NJ          08540          SFD         7.125        6.500        $3,301.22    360
7643572               WILMINGTON               DE          19807          SFD         6.500        6.233        $2,673.65    360
7644372               SCOTTSDALE               AZ          85255          SFD         7.250        6.500        $1,943.86    360
7644648               JOHNSTON                 IA          50131          SFD         7.125        6.500        $2,432.12    360
7644874               BENICIA                  CA          94510          SFD         7.125        6.500        $2,564.98    360
7644883               LONGMONT                 CO          80503          SFD         7.125        6.500        $2,863.30    360
7646936               CLARKSTON                MI          48346          LCO         7.625        6.500        $2,434.81    360
7647092               OAK PARK                 CA          91377          PUD         7.125        6.500        $3,306.27    360
7647947               TUSTIN                   CA          92782          SFD         7.125        6.500        $1,583.24    360
7648815               CUMMING                  GA          30041          SFD         7.500        6.500        $2,363.35    360
7649344               SANTA ANA                CA          92705          SFD         7.250        6.500        $2,558.16    360
7649412               CUPERTINO                CA          95014          SFD         7.250        6.500        $3,438.17    360
7650105               ATLANTA                  GA          30342          SFD         6.875        6.500        $1,970.79    360
7650140               LOS ANGELES              CA          90066          SFD         7.375        6.500        $3,341.14    360
7652242               BURNSVILLE               MN          55306          SFD         7.250        6.500        $2,421.73    360
7652331               MORRIS TOWNSHIP          NJ          07960          SFD         7.375        6.500        $2,175.63    360
7652476               PHILADELPHIA             PA          19118          SFD         7.500        6.500        $4,419.04    360
7653222               WABAN                    MA          02468          SFD         7.875        6.500        $2,102.70    360
7653463               WINTER GARDEN            FL          34787          PUD         7.500        6.500        $3,034.59    360
7653590               MONTROSE                 CO          81401          SFD         7.125        6.500        $1,751.67    360
7654009               BELLEVUE                 WA          98008          SFD         7.500        6.500        $3,272.32    360
7654715               LAKEVILLE                MN          55044          SFD         7.250        6.500        $1,855.18    360
7654868               MORGAN HILL              CA          95037          SFD         7.500        6.500        $2,150.08    360
7655003               AFTON                    OK          74331          SFD         7.500        6.500        $2,804.55    360
7655358               ENGLEWOOD                NJ          07631          SFD         7.625        6.500        $2,831.17    360
7655439               BASALT                   CO          81621          PUD         7.125        6.500        $1,832.51    360
7656555               CARMEL                   CA          93923          SFD         7.000        6.500        $3,326.51    360
7657036               BOULDER                  CO          80303          SFD         7.125        6.500        $5,187.63    360
7657100               BELLEVUE                 WA          98006          SFD         7.375        6.500        $3,453.38    360
7657987               BENICIA                  CA          94510          SFD         7.250        6.500        $2,056.76    360
7658258               MISSION VIEJO            CA          92692          SFD         6.750        6.483        $2,334.95    360
7658401               TARPON SPRINGS           FL          34689          SFD         8.125        6.500        $2,208.93    360
7658413               ATLANTA                  GA          30328          SFD         7.250        6.500        $1,800.95    360
7658646               WALNUT CREEK             CA          94596          SFD         7.375        6.500        $4,489.39    360
7658975               TRINIDAD                 CO          81082          SFD         7.750        6.500         $952.83     360
7659125               SAN RAFAEL               CA          94901          SFD         7.500        6.500        $1,809.22    360
7659238               FAIRFAX                  CA          94930          SFD         7.375        6.500        $2,417.36    360
7659384               BRIGHTON                 CO          80601          SFD         7.000        6.500        $2,262.03    360
7659589               WESTPORT                 CT          06880          SFD         7.000        6.500        $6,653.03    360
7659800               SAN DIMAS                CA          91773          SFD         6.875        6.500        $2,463.48    360
7660125               WESTON                   FL          33327          PUD         7.000        6.500        $2,542.45    360
7660492               ALBUQUERQUE              NM          87111          SFD         7.250        6.500        $2,408.63    360
7660737               CHARLOTTE                NC          28211          SFD         7.000        6.500        $2,641.25    360
7661009               MINNEAPOLIS              MN          55414          LCO         7.375        6.500        $1,740.50    360
7661200               ASPEN                    CO          81611          LCO         7.375        6.500        $2,719.53    360
7661519               HOLMDEL                  NJ          07733          SFD         7.375        6.500        $2,762.70    360
7661672               ANAHEIM                  CA          92808          SFD         7.125        6.500        $2,425.39    360
7662928               DANVILLE                 CA          94526          SFD         7.250        6.500        $2,259.37    360
7663073               CASTRO VALLEY            CA          94552          PUD         7.500        6.500        $2,422.78    360
7663634               MIAMI BEACH              FL          33140          SFD         7.000        6.500        $3,073.70    360
7663799               SNOWMASS VILLAGE         CO          81615          LCO         7.250        6.500        $4,202.21    360
7664511               PLEASANTON               CA          94566          SFD         6.875        6.500        $2,159.98    360
7664803               ATLANTA                  GA          30307          SFD         7.000        6.500        $2,086.39    360
7665262               MINNETONKA               MN          55391          SFD         7.375        6.500        $1,449.90    360
7665390               STILLWATER               MN          55082          SFD         7.375        6.500        $2,659.10    360
7665567               GOLDEN                   CO          80401          PUD         7.125        6.500        $1,852.73    360
7665654               LITTLETON                CO          80121          SFD         7.250        6.500        $2,974.29    360
7665822               SHERMAN OAKS             CA          91403          SFD         7.250        6.500        $3,410.88    360
7665852               PARADISE VALLEY          AZ          85253          SFD         8.000        6.500        $7,337.65    360
7666399               COSTA MESA               CA          92627          LCO         7.375        6.500        $1,087.81    360
7666432               SACRAMENTO               CA          95831          SFD         7.000        6.500        $2,528.15    360
7666555               OAK PARK                 CA          91377          SFD         7.000        6.500        $3,315.20    360
7666682               CAMPBELL                 CA          95008          SFD         7.000        6.500        $2,069.09    360
7666974               DAYTON                   OH          45458          SFD         7.125        6.500        $2,829.62    360
7667127               GLENDALE                 AZ          85308          SFD         6.875        6.500        $1,744.15    360
7667565               CHINO HILLS              CA          91709          SFD         7.125        6.500        $2,139.73    360
7668356               ARLINGTON HEIGHTS        IL          60004          SFD         7.250        6.500        $2,217.07    360
7668557               SAN JOSE                 CA          95131          SFD         7.500        6.500        $1,879.84    360
7669017               RANCHO SANTA MARG        CA          92688          SFD         7.000        6.500        $1,615.35    360
7669046               PLEASANTON               CA          94588          SFD         7.250        6.500        $2,373.97    360
7669076               RESTON                   VA          20191          SFD         6.750        6.483        $1,712.30    360
7670125               YORBA LINDA              CA          92886          SFD         7.250        6.500        $3,097.08    360
7670941               OKLAHOMA CITY            OK          73120          SFD         7.875        6.500        $2,719.01    360
7671977               TORRANCE                 CA          90505          SFD         7.250        6.500        $2,148.86    360
7672085               WICHITA FALLS            TX          76309          SFD         6.875        6.500        $3,843.03    360
7672102               EVANSTON                 IL          60201          SFD         7.500        6.500        $2,901.74    360
7672376               BELLEVUE                 WA          98006          SFD         7.500        6.500        $4,894.50    360
7672435               FORT COLLINS             CO          80528          SFD         7.125        6.500        $2,139.73    360
7672671               LOS ANGELES              CA          90039          SFD         7.125        6.500        $2,088.53    360
7672695               SALINAS                  CA          93908          SFD         6.875        6.500        $2,353.43    360
7672816               ACTON                    CA          93510          SFD         7.750        6.500        $2,552.22    360
7672905               ALISO VIEJO AREA         CA          92656          SFD         7.250        6.500        $3,129.82    360
7672953               HONOLULU                 HI          96822          SFD         6.875        6.500        $3,284.64    360
7673200               WILMINGTON               NC          28409          SFD         7.000        6.500        $1,942.68    360
7673487               CORONADO                 CA          92118          SFD         7.750        6.500        $1,647.75    360
7675155               BETHESDA                 MD          20817          SFD         6.750        6.483        $1,759.00    360
7675158               WASHINGTON               DC          20009          SFD         7.125        6.500        $2,123.56    360
7675501               CARLSBAD                 CA          92009          LCO         7.000        6.500         $685.26     360
7675688               MILLBURN                 NJ          07078          SFD         7.375        6.500        $2,486.43    360
7675715               WILMETTE                 IL          60091          SFD         7.625        6.500        $4,317.54    360
7675799               GILROY                   CA          95020          SFD         7.250        6.500        $2,260.48    240
7676323               BERNARDS TWP             NJ          07920          SFD         7.500        6.500        $2,237.49    360
7676989               PARK CITY                UT          84060          SFD         7.000        6.500        $3,173.49    360
7677320               HAYWARD                  CA          94544          SFD         7.125        6.500        $1,728.09    360
7677714               EL SEGUNDO               CA          90245          MF2         7.375        6.500        $2,237.79    360
7677858               REDMOND                  WA          98053          SFD         6.750        6.483        $2,542.50    360
7678011               CHAPEL HILL              NC          27514          SFD         7.250        6.500        $2,046.53    360
7678734               SNOWMASS VILLAGE         CO          81615          SFD         7.250        6.500        $3,390.42    360
7678836               COCOA BEACH              FL          32931          SFD         6.750        6.483        $1,919.85    360
7678906               NORFOLK                  VA          23508          SFD         6.875        6.500        $2,266.40    360
7678928               MILL VALLEY              CA          94941          SFD         7.000        6.500        $5,156.09    360
7679399               TROY                     MI          48098          SFD         6.875        6.500        $1,642.32    360
7679559               BASALT                   CO          81621          SFD         7.375        6.500        $2,002.96    360
7680133               PALOUSE                  WA          99161          SFD         7.500        6.500        $1,859.91    360
7680557               SAN JOSE                 CA          95123          SFD         7.125        6.500        $2,299.74    360
7682030               CINCINNATI               OH          45243          SFD         7.250        6.500        $3,194.63    360
7682116               PAYETTE                  ID          83661          SFD         6.500        6.233        $1,800.13    360
7682150               LONGMONT                 CO          80501          PUD         7.500        6.500        $1,893.12    360
7682465               PACIFICA                 CA          94044          SFD         7.500        6.500        $2,181.55    360
7682596               CHICAGO                  IL          60657          HCO         7.375        6.500        $2,458.80    360
7682696               NEW HARMONY              UT          84757          SFD         7.500        6.500        $2,027.72    360
7682715               IRVINE                   CA          92620          SFD         7.250        6.500        $2,967.47    360
7682726               BONITA                   CA          91902          SFD         7.000        6.500        $1,910.73    240
7682824               RENO                     NV          89509          SFD         7.250        6.500        $2,223.89    360
7682844               PALM DESERT              CA          92211          SFD         7.625        6.500         $867.05     360
7682906               LAS VEGAS                NV          89134          SFD         7.125        6.500        $1,697.77    360
7682923               LITTLETON                CO          80123          SFD         7.125        6.500        $2,105.71    360
7683003               LAGUNA BEACH             CA          92651          SFD         7.375        6.500        $3,453.38    360
7683177               PISMO BEACH              CA          93449          SFD         7.125        6.500        $1,785.35    360
7683256               WOODLAND HILLS           CA          91364          SFD         7.000        6.500        $1,763.05    360
7683282               NOVATO                   CA          94945          SFD         6.625        6.358        $3,150.33    360
7683393               REHOBOTH BEACH           DE          19971          SFD         7.625        6.500        $3,335.12    360
7683912               CINCINNATI               OH          45242          SFD         7.250        6.500        $2,947.00    360
7684026               ASPEN                    CO          81611          LCO         7.250        6.500        $1,136.51    360
7684361               EDINA                    MN          55424          SFD         7.125        6.500        $3,665.03    360
7684652               OAKLAND                  CA          94611          SFD         7.250        6.500        $2,302.35    360
7684718               TEANECK TWNSP            NJ          07666          SFD         7.250        6.500        $1,166.52    360
7684844               EULESS                   TX          76039          SFD         6.875        6.500         $693.72     360
7685141               NEWPORT BEACH            CA          92657          SFD         7.250        6.500        $6,821.76    360
7685496               COLORADO SPRINGS         CO          80906          SFD         7.250        6.500        $1,978.31    360
7686301               HOLLISTER                CA          95023          SFD         6.875        6.500        $1,959.89    360
7686970               SAN FRANCISCO            CA          94131          SFD         7.250        6.500        $4,434.15    360
7687459               SCOTTSDALE               AZ          85259          SFD         7.125        6.500        $3,132.79    360
7687735               THE WOODLANDS            TX          77382          SFD         7.125        6.500        $2,656.47    360
7687846               ROWLAND HEIGHTS          CA          91748          SFD         7.250        6.500        $2,335.77    360
7687877               EL CAJON                 CA          92020          SFD         7.250        6.500        $1,964.67    360
7688225               ALEXANDRIA               VA          22302          SFD         7.125        6.500        $1,765.14    360
7688274               ANN ARBOR                MI          48103          SFD         7.000        6.500        $1,743.09    360
7688388               CAMPBELL                 CA          95008          SFD         6.875        6.500        $3,232.09    360
7688451               RENO                     NV          89511          SFD         7.500        6.500        $2,340.97    360
7688480               MOUNTAIN VIEW            CA          94040          SFD         7.250        6.500        $1,862.34    360
7688740               GRAPEVINE                TX          76051          PUD         6.875        6.500        $1,576.63    360
7688904               SOUTH PASADENA           CA          91030          SFD         6.875        6.500        $5,255.43    360
7688958               NIWOT                    CO          80503          SFD         6.750        6.483        $2,630.71    360
7689000               LEXINGTON                MA          02173          SFD         7.375        6.500        $1,730.14    360
7689756               AURORA                   CO          80015          SFD         7.750        6.500        $2,887.14    360
7689990               SAUSALITO                CA          94939          SFD         7.250        6.500        $6,821.76    360
7690374               SAN JOSE                 CA          95133          SFD         7.375        6.500        $1,933.89    360
7690626               DOVE CANYON              CA          92679          PUD         7.250        6.500        $2,401.26    360
7690638               PEBBLE BEACH             CA          93953          SFD         7.000        6.500        $5,854.66    360
7690890               DANVILLE                 CA          94526          SFD         7.250        6.500        $2,150.22    360
7690914               RIVERSIDE                CA          92506          SFD         7.000        6.500        $2,538.13    360
7690919               MANASSAS                 VA          20111          SFD         7.500        6.500        $2,080.16    360
7690963               PACIFIC GROVE            CA          93950          SFD         7.250        6.500        $2,174.44    360
7691035               LA VERNE (AREA)          CA          91750          SFD         7.250        6.500        $2,510.41    360
7691060               REDWOOD CITY             CA          94062          SFD         7.000        6.500        $2,494.88    360
7691321               ATLANTA                  GA          30319          SFD         7.375        6.500        $2,204.63    360
7691681               SSAQUAH                  WA          98027          SFD         7.250        6.500        $1,719.08    360
7691979               SAN JOSE                 CA          95125          SFD         7.125        6.500        $2,021.16    360
7692519               ST CHARLES               IL          60174          SFD         6.000        5.733        $2,062.45    360
7692521               MAPLE GROVE              MN          55311          SFD         6.875        6.500        $1,863.84    360
7692962               VIRGINIA BEACH           VA          23457          SFD         7.125        6.500        $2,182.85    360
7693414               PARADISE VALLEY          AZ          85253          SFD         7.250        6.500        $2,728.71    360
7693423               DANVILLE                 CA          92506          SFD         7.500        6.500        $2,847.20    360
7693482               HOLLISTER                CA          95023          SFD         6.750        6.483        $2,189.41    360
7693792               FOLSOM                   CA          95630          SFD         7.375        6.500        $2,072.03    360
7693970               BARRINGTON               IL          60010          SFD         7.000        6.500        $3,406.35    360
7694835               PACIFIC PALASADES        CA          90272          LCO         7.375        6.500        $2,724.71    360
7695278               BENICIA                  CA          94510          SFD         7.500        6.500        $2,285.73    360
7695333               BENICIA                  CA          94510          SFD         7.500        6.500        $2,051.50    360
7696759               BENICIA                  CA          94510          SFD         7.250        6.500        $2,133.85    360
7696878               WALTHAM                  MA          02451          LCO         6.875        6.500        $2,012.83    360
7696984               MILL VALLEY              CA          94941          PUD         7.250        6.500        $2,046.53    360
7697129               SAN JOSE                 CA          95129          SFD         7.000        6.500        $1,936.03    360
7697666               UNION CITY               CA          94587          SFD         7.000        6.500        $1,796.32    360
7697871               ELK GROVE                CA          95758          PUD         6.750        6.483        $1,797.38    360
7697918               FAIRFIELD                CA          94533          PUD         7.375        6.500        $1,755.01    360
7698176               ANDOVER                  MN          55304          SFD         7.500        6.500        $1,982.27    360
7698596               PORTLAND                 OR          97229          SFD         7.375        6.500        $3,729.65    360
7698605               CORONADO                 CA          92118          SFD         7.375        6.500        $2,486.43    360
7698638               STEAMBOAT SPRINGS        CO          80477          SFD         7.000        6.500        $6,553.23    360
7698764               MAHWAH TOWNSHIP          NJ          07430          SFD         7.500        6.500        $2,209.52    360
7698803               SANTA CRUZ               CA          95060          SFD         6.875        6.500        $3,153.26    360
7699025               PALOS VERDES EST         CA          90274          SFD         6.875        6.500        $2,463.48    360
7699094               MANHATTAN BEACH          CA          90266          SFD         7.000        6.500        $6,486.70    360
7699806               LAGUNA NIGUEL            CA          92677          SFD         7.500        6.500        $2,359.50    360
7700072               TELLURIDE                CO          81435          SFD         7.375        6.500        $2,513.60    240
7700824               LOS ALTOS                CA          94022          SFD         6.875        6.500        $2,709.83    360
7701129               CARY                     IL          60013          SFD         7.250        6.500        $2,182.96    360
7701311               EDINA                    MN          55424          SFD         7.000        6.500        $2,069.09    360
7701650               LITHONIA                 GA          30058          SFD         7.500        6.500        $1,992.76    360
7702625               EVANSTON                 IL          60202          SFD         8.000        6.500        $4,769.47    360
7703131               WOODSTOCK                GA          30189          PUD         6.875        6.500        $2,062.76    360
7703241               SEAL BEACH               CA          90740          SFD         6.875        6.500        $1,701.45    360
7703469               DECATUR                  GA          30033          SFD         6.875        6.500        $1,848.60    360
7703543               BURLINGAME               CA          94010          SFD         7.000        6.500        $2,494.88    360
7704515               PARK CITY                UT          84098          SFD         7.375        6.500        $2,009.86    360
7704552               WALNUT CREEK             CA          94596          SFD         7.000        6.500        $1,756.40    360
7704851               CHEVY CHASE              MD          20815          LCO         6.875        6.500        $2,956.18    360
7705139               BEND                     OR          97702          SFD         7.500        6.500        $1,959.55    360
7705186               SHERWOOD                 OR          97140          SFD         7.500        6.500        $1,727.06    360
7705595               STOCKTON                 CA          95212          SFD         7.375        6.500        $2,279.23    360
7705617               HOT SPRGS VILLAGE        AR          71909          SFD         7.250        6.500        $2,017.88    360
7706073               HOPKINTON                NH          03229          SFD         7.625        6.500        $2,286.17    360
7706381               STEAMBOAT SPRINGS        CO          80477          SFD         7.250        6.500        $2,955.87    360
7707109               SOLON                    IA          52333          SFD         7.250        6.500        $2,073.82    360
7707743               SNOWMASS                 CO          81654          SFD         7.125        6.500        $2,694.87    360
7707860               MT. AIRY                 MD          21771          SFD         7.875        6.500        $2,175.21    360
7707896               PARK CITY                UT          84060          PUD         7.125        6.500        $2,273.19    360
7708305               WALLINGFORD              CT          06492          SFD         7.375        6.500        $2,635.62    360
7708496               LAGUNA NIGUEL            CA          92677          SFD         7.250        6.500        $2,221.36    288
7708831               LAS VEAGS                NV          89107          SFD         7.500        6.500        $2,202.53    360
7709454               PLEASANTON               CA          94566          SFD         6.500        6.233        $4,108.44    360
7709576               ATLANTA                  GA          30306          MF2         7.250        6.500        $2,240.95    360
7709684               DURANGO                  CO          81301          SFD         7.000        6.500        $4,397.65    360
7709755               LOS ANGELES              CA          91364          SFD         7.500        6.500        $2,696.17    360
7710036               ESCONDIDO                CA          92026          SFD         7.375        6.500        $1,933.89    360
7710152               POWAY                    CA          92064          SFD         7.125        6.500        $2,452.34    360
7710856               MICHIGAN CITY            IN          46360          SFD         7.750        6.500        $2,435.80    360
7710988               BASALT                   CO          81621          SFD         7.250        6.500        $2,521.32    360
7711189               DURANGO                  CO          81301          SFD         7.250        6.500        $3,001.58    360
7711831               GRANITE BAY              CA          95746          PUD         6.875        6.500        $2,326.18    360
7711977               WESTLAKE VILLAGE         CA          91362          SFD         7.125        6.500        $2,155.90    360
7711978               LAKE FOREST              CA          92630          PUD         6.875        6.500        $2,254.58    360
7712030               PLAYA DEL REY            CA          90293          SFD         7.125        6.500        $3,368.59    360
7712289               YORBA LINDA              CA          92886          SFD         7.250        6.500        $2,016.51    360
7712759               ANN ARBOR                MI          48105          SFD         7.375        6.500        $1,983.62    360
7713061               SARATOGA                 CA          95070          SFD         7.000        6.500        $3,911.98    360
7713764               LITTLETON                CO          80123          SFD         7.375        6.500        $2,590.03    360
7713871               BOULDER                  CO          80302          SFD         7.000        6.500        $6,297.01    360
7713939               SAN DIEGO                CA          92037          SFD         7.500        6.500        $6,607.58    360
7714282               REDWOOD CITY             CA          94062          PUD         7.375        6.500        $3,108.04    360
7714377               ORANGE                   CA          92867          PUD         7.375        6.500        $5,276.76    360
7714589               DANVILLE                 CA          94506          SFD         7.125        6.500        $3,638.08    360
7715474               BROKEN ARROW             OK          74012          SFD         7.375        6.500        $2,439.81    360
7715639               BLAIRSTOWN               NJ          07825          SFD         7.875        6.500        $2,030.19    360
7715777               CHANDLER                 AZ          85224          SFD         7.125        6.500        $2,042.71    360
7715797               IRVINE                   CA          92604          SFD         7.125        6.500        $1,943.74    240
7716573               SAN JOSE                 CA          95123          SFD         7.500        6.500        $2,083.66    360
7717099               ATLANTA                  GA          30319          SFD         7.250        6.500        $1,880.76    360
7717149               RENO                     NV          89509          SFD         7.500        6.500        $2,912.23    360
7717191               MOUND                    MN          55364          SFD         7.125        6.500        $2,051.47    360
7718093               AVALON                   CA          90704          SFD         7.125        6.500        $2,155.90    360
7718428               COTO DE CAZA AREA        CA          92679          SFD         7.125        6.500        $2,169.37    360
7718528               FORT COLLINS             CO          80524          SFD         6.875        6.500        $2,429.98    360
7718638               SAN CLEMENTE             CA          92673          SFD         7.250        6.500        $5,147.02    360
7718941               BOULDER                  CO          80304          SFD         7.000        6.500        $1,995.91    360
7719053               NOVATO                   CA          94949          SFD         7.375        6.500        $2,127.28    360
7719479               CLARKSVILLE              MD          21029          SFD         6.750        6.483        $2,205.23    360
7720136               LAFAYETTE                CO          80026          SFD         7.875        6.500        $1,363.13    360
7720191               MARIETTA                 GA          30068          SFD         6.750        6.483        $2,903.51    360
7720225               ATLANTA                  GA          30309          SFD         6.750        6.483        $2,633.31    360
7720918               STOCKTON                 CA          95212          SFD         6.875        6.500        $1,944.51    360
7721226               SAN JOSE                 CA          95123          SFD         7.000        6.500        $2,029.17    360
7721413               BERKELEY                 CA          94705          SFD         7.375        6.500        $3,142.57    360
7722451               DOYLESTOWN               PA          18901          SFD         7.500        6.500        $1,929.83    360
7722699               BELMONT                  CA          94002          SFD         7.000        6.500        $2,561.41    360
7722920               SEATTLE                  WA          98118          SFD         7.000        6.500        $2,050.60    360
7723470               KILDEER                  IL          60047          SFD         7.125        6.500        $2,260.33    360
7723605               GLENBROOK                NV          89413          SFD         7.875        6.500        $2,175.21    360
7723739               ST CHARLES               MO          63304          SFD         7.000        6.500        $3,459.57    360
7723892               DES MOINES               IA          50312          SFD         6.875        6.500        $3,012.02    360
7724106               LAS VEGAS                NV          89117          SFD         7.125        6.500        $3,570.71    360
7724218               BALD HEAD ISLAND         NC          28461          SFD         7.125        6.500        $2,661.19    360
7724260               DENVER                   CO          80210          SFD         7.250        6.500         $866.70     360
7724698               MILLER PLACE             NY          11764          SFD         7.125        6.500        $2,748.77    360
7724987               LAS VEGAS                NV          89117          SFD         7.875        6.500        $1,911.28    360
7725054               CARBONDALE               CO          81623          SFD         7.250        6.500        $2,966.96    360
7725499               SAN RAFAEL               CA          94903          SFD         7.000        6.500        $1,783.01    360
7725529               WALNUT CREEK             CA          94598          SFD         7.375        6.500        $2,458.80    360
7725595               GLENDALE                 CA          91202          SFD         7.500        6.500        $3,146.47    360
7725608               ATLANTA                  GA          30306          MF3         6.875        6.500        $2,522.61    360
7725670               SAN MATEO                CA          94402          SFD         7.375        6.500        $6,043.41    360
7725683               BETHESDA                 MD          20817          SFD         7.000        6.500        $1,678.00    360
7726024               BRIGHTON                 CO          80601          SFD         7.375        6.500        $1,897.93    360
7726202               KIRKLAND                 WA          98034          SFD         7.250        6.500        $3,069.79    360
7726386               LOS OSOS                 CA          93402          SFD         7.000        6.500        $2,395.09    360
7726403               BENICIA                  CA          94510          SFD         7.250        6.500        $1,969.78    360
7726499               NEWPORT BEACH            CA          92660          SFD         7.125        6.500        $1,870.58    360
7726505               FOUNTAIN HILLS           AZ          85268          SFD         7.375        6.500        $2,538.23    360
7726809               SAN MATEO                CA          94403          SFD         6.875        6.500        $2,470.05    360
7726878               SALT LAKE CITY           UT          84105          SFD         7.125        6.500        $1,995.89    360
7727642               POTOMAC                  MD          20854          SFD         7.375        6.500        $2,714.35    360
7727804               BLOOMFIELD HILLS         MI          48301          SFD         7.250        6.500        $3,187.47    360
7728340               MORRISVILLE              NC          27560          SFD         7.375        6.500        $2,103.99    360
7729343               FALLS CHURCH             VA          22042          SFD         6.500        6.233        $1,896.20    360
7729440               MCKINNEY                 TX          75069          SFD         7.625        6.500        $1,942.89    360
7729557               SAN MATEO                CA          94402          SFD         7.000        6.500        $1,929.38    360
7729973               GLENVIEW                 IL          60025          SFD         7.125        6.500        $3,031.06    360
7730085               DALLAS                   TX          75218          SFD         7.750        6.500        $1,192.11    360
7730424               FARMINGTON HILLS         MI          48331          LCO         7.375        6.500        $4,373.35    360
7730529               ATLANTA                  GA          30318          SFD         7.250        6.500        $1,872.57    360
7730751               BRECKENRIDGE             CO          80424          PUD         7.000        6.500        $3,326.51    360
7730942               GLEN ALLEN               VA          23060          PUD         7.000        6.500        $1,909.42    360
7731186               SEAL BEACH               CA          90740          SFD         7.000        6.500        $2,070.75    360
7731579               SAN DIEGO                CA          92130          SFD         6.875        6.500        $2,153.08    360
7731618               DURHAM                   NC          27703          SFD         6.500        6.233        $1,580.17    360
7731651               ATLANTA                  GA          30309          SFD         7.000        6.500        $2,533.47    360
7731971               MILL VALLEY              CA          94941          SFD         7.375        6.500        $2,686.73    360
7732327               LINCOLN                  CA          95648          SFD         7.250        6.500        $1,768.20    360
7734045               LAFAYETTE                CA          94549          PUD         6.875        6.500        $3,100.70    360
7734074               SAUSALITO                CA          94965          SFD         7.375        6.500        $3,764.18    360
7734327               SAN DIEGO                CA          92037          SFD         7.125        6.500        $6,376.07    360
7734533               MONUMENT                 CO          80132          SFD         6.750        6.483        $1,816.07    360
7734565               WEST BLOOMFIELD          MI          48324          SFD         7.125        6.500        $2,382.63    312
7734979               INDIAN HARBOUR BE        FL          32937          SFD         7.375        6.500        $2,072.03    360
7735239               SAN DIEGO                CA          92128          SFD         7.000        6.500        $2,136.95    360
7736034               ZIONSVILLE               IN          46077          SFD         7.250        6.500        $2,886.97    360
7736233               TUSTIN                   CA          92782          SFD         7.250        6.500        $2,210.25    360
7736303               MILPITAS                 CA          95035          SFD         6.875        6.500        $2,308.45    360
7736341               LOS ALTOS                CA          94024          SFD         6.875        6.500        $2,562.02    360
7736851               DANVILLE                 CA          94506          SFD         6.875        6.500        $2,299.25    360
7737375               CASTLE ROCK              CO          80104          SFD         7.000        6.500        $5,003.07    360
7737482               NORCROSS                 GA          30092          SFD         6.875        6.500        $1,806.55    360
7737563               SANTA CRUZ               CA          95066          SFD         7.250        6.500        $3,813.37    360
7738650               LOMA                     CO          81524          SFD         7.250        6.500        $1,717.38    360
7738688               VENTURA                  CA          93003          SFD         7.250        6.500        $3,438.17    360
7738816               ANAHEIM                  CA          92807          SFD         7.250        6.500        $1,023.26    360
7739610               ALPHARETTA               GA          30005          PUD         8.125        6.500        $1,989.04    360
7740281               LAGUNA HILLS             CA          92653          SFD         7.000        6.500        $5,322.42    360
7740779               PISMO BEACH              CA          93449          SFD         7.500        6.500        $4,195.29    360
7741634               KELLER                   TX          76248          SFD         7.000        6.500        $2,221.71    360
7742590               OCEAN CITY               NJ          08226          SFD         7.500        6.500        $2,293.42    360
7743109               WILSONVILLE              OR          97070          SFD         6.500        6.233        $2,054.22    360
7744588               SAN JOSE                 CA          95135          SFD         7.125        6.500        $2,996.03    360
7745060               STONE HARBOR             NJ          08247          SFD         7.500        6.500        $3,654.37    360
7745262               SAN CLEMENTE             CA          92672          SFD         7.125        6.500        $1,913.36    360
7745295               ATLANTA                  GA          30305          SFD         7.750        6.500        $2,149.24    360
7745885               BELLEVUE                 WA          98006          SFD         6.875        6.500        $6,569.29    360
7747729               NORTHVILLE               MI          48167          SFD         7.500        6.500        $2,440.26    360
7747882               DISCOVERY BAY            CA          94514          SFD         7.375        6.500        $1,895.21    360
7749357               SAN JOSE                 CA          95125          SFD         7.250        6.500        $2,908.80    360
7749987               SAN JOSE                 CA          95124          SFD         7.125        6.500        $1,987.47    360
7749993               BASALT                   CO          81621          SFD         7.375        6.500        $2,272.32    360
7750601               SALT LAKE CITY           UT          84109          SFD         7.375        6.500        $2,299.22    360
7754011               NEWPORT COAST            CA          92657          PUD         7.250        6.500        $2,046.53    360
7755935               THE WOODLANDS            TX          77382          PUD         7.000        6.500        $2,655.89    360
7758519               WASHINGTON CROSSI        PA          18977          SFD         7.125        6.500        $3,179.95    360
7758822               SARATOGA                 CA          95070          SFD         7.750        6.500        $3,223.85    360
7759879               SAN CLEMENTE             CA          92673          PUD         7.500        6.500        $2,674.50    360
7761611               SUNRISE BEACH            TX          78643          SFD         7.625        6.500        $2,799.32    360
7762430               SAN JOSE                 CA          95132          SFD         7.625        6.500        $2,163.02    360
7776651               LAFAYETTE                CO          80026          SFD         7.250        6.500        $3,410.88    360
7782199               MORGAN HILL              CA          95037          SFD         7.625        6.500        $1,861.50    360
7791052               LOS ANGELES              CA          90027          SFD         7.875        6.500        $2,737.86    360
4643081               MIDWAY CITY              CA          92655          SFD         7.750        6.500         $558.94     300
4785090               BASTROP                  TX          78602          SFD         7.000        6.500        $2,162.24    360
4801065               LEANDER                  TX          78645          SFD         7.375        6.500        $3,660.58    360
4828023               NEW CANAAN               CT          06840          SFD         7.250        6.500        $1,875.99    360
4837378               BONITA SPRINGS           FL          34134          SFD         6.875        6.500        $2,299.26    360
4844529               BROOKLYN                 NY          11229          SFD         7.625        6.500        $1,840.26    360
4845900               BOERNE                   TX          78006          SFD         7.125        6.500        $1,819.05    360
4848055               HINSDALE                 IL          60521          SFD         7.250        6.500        $3,228.06    360
4850523               LITTLETON                NC          27850          SFD         7.500        6.500        $1,748.04    360
4851685               WILTON                   CT          06897          LCO         7.000        6.500        $2,634.60    360
4853775               MONROVIA                 CA          91016          SFD         6.875        6.500        $3,424.57    360
4866388               HUNTINGTON               NY          11743          SFD         7.500        6.500        $1,957.10    360
4866607               SHERMAN OAKS             CA          91423          SFD         6.875        6.500        $2,296.63    360
4868764               STATEN ISLAND            NY          10309          SFD         7.000        6.500        $1,618.35    360
4872103               CHURCHVILLE              PA          18966          SFD         6.750        6.483        $2,340.15    360
4881077               LAGUNA NIGUEL            CA          92677          SFD         7.375        6.500        $2,072.03    360
4882250               EL CAJON                 CA          92019          SFD         7.350        6.500        $1,918.10    360
4888980               AUSTIN                   TX          78735          SFD         7.000        6.500        $2,062.44    360
4893295               NEW YORK                 NY          10014          HCO         6.625        6.358        $2,561.25    360
4898743               LOS ANGELES              CA          90024          SFD         7.250        6.500        $2,660.49    360
4898799               ATLANTIC BEACH           NY          11509          SFD         7.625        6.500        $2,123.39    360
4900438               NEWHALL                  CA          91321          SFD         7.375        6.500        $2,382.83    360
4901752               LOS ANGELES              CA          90064          SFD         7.125        6.500        $1,920.10    360
4909747               SAN JOSE                 CA          95135          SFD         7.125        6.500        $2,021.16    360
4910020               HILLSBORO                VA          20134          SFD         7.500        6.500        $3,803.73    360
4917266               HUNTINGTON BEACH         CA          92648          SFD         7.750        6.500        $2,807.26    360
4917360               IDAHO FALLS              ID          83404          SFD         7.000        6.500        $3,566.38    240
4925498               LEESBURG                 VA          20176          SFD         6.750        6.483        $2,189.02    360
4926158               CHICAGO                  IL          60622          LCO         7.625        6.500        $2,123.39    360
4927442               CANYON COUNTRY           CA          91351          SFD         7.250        6.500         $900.47     360
4927619               COMMACK                  NY          11725          SFD         7.625        6.500        $2,000.23    360
4929148               BURLESON                 TX          76028          SFD         6.500        6.233        $1,633.90    360
4930597               NEW MARKET TOWNSHIP      MN          55044          SFD         7.125        6.500        $2,212.49    360
4931152               BROOKLYN                 NY          11204          MF2         7.875        6.500        $3,473.08    360
4931338               SAN DIEGO                CA          92110          SFD         6.875        6.500        $1,803.93    360
4933391               BRADLEY BEACH            NJ          07720          SFD         6.500        6.233        $1,678.14    360
4933899               SAN JOSE                 CA          95131          SFD         7.375        6.500        $1,958.07    360
4934866               CAMBRIDGE                MA          02139          LCO         7.000        6.500        $1,676.57    360
4934998               SAN DIEGO                CA          92127          SFD         7.125        6.500        $1,914.03    360
4937013               FORT LAUDERDALE          FL          33315          SFD         7.500        6.500        $2,237.49    360
4937889               BLACKLICK                OH          43004          SFD         6.500        6.233        $1,763.47    360
4939879               NEW YORK                 NY          10014          HCO         7.000        6.500        $3,991.82    360
4940569               BALTIMORE                MD          21230          LCO         7.250        6.500        $1,020.54    360
4940807               ORINDA                   CA          94563          SFD         7.125        6.500        $2,681.40    360
4942673               BALTIMORE                MD          21231          HCO         7.750        6.500        $1,524.53    360
4949126               BEAUMONT                 TX          77706          SFD         7.000        6.500        $1,796.32    360
4950160               WASHINGTON               DC          20016          SFD         7.000        6.500        $1,975.95    360
4951328               NEW YORK                 NY          10013          HCO         7.125        6.500        $2,694.88    360
4951509               DENVER                   CO          82220          SFD         7.250        6.500        $2,612.05    360
4952126               EL CERRITO               CA          94530          SFD         7.250        6.500        $1,418.93    360
4953714               VIRGINIA BEACH           VA          23454          SFD         7.125        6.500        $3,031.73    360
4953780               SAN LEANDRO              CA          94578          SFD         7.375        6.500        $1,392.41    360
4956473               ALISO VIEJO              CA          92656          SFD         7.125        6.500        $3,035.10    360
4958592               LOS ANGELES              CA          91601          SFD         7.250        6.500        $1,814.59    360
4958810               SEDONA                   AZ          86336          SFD         7.000        6.500        $1,808.29    360
4961907               AUBURN                   WA          98092          SFD         7.500        6.500        $1,725.32    360
4962287               REDONDO BEACH            CA          90278          SFD         6.875        6.500        $1,891.96    360
4964607               ORLANDO                  FL          32821          SFD         7.250        6.500        $2,993.05    360
4965725               MCKINNEY                 TX          75069          SFD         7.250        6.500        $2,876.97    240
4965781               TARZANA                  CA          91356          SFD         7.250        6.500        $2,897.89    360
4966914               SOUTHLAKE                TX          76092          SFD         7.125        6.500        $2,058.89    360
4968094               GROSSE POINTE            MI          48230          SFD         7.625        6.500        $2,399.43    360
4968405               SOMERS                   NY          10589          LCO         7.625        6.500         $707.80     360
4968521               SAN JOSE                 CA          95138          SFD         6.750        6.483        $3,243.00    360
4968811               NEW YORK                 NY          10013          HCO         7.125        6.500        $2,694.88    360
4968905               EASTON                   CT          06612          SFD         7.000        6.500        $4,324.47    360
4969177               MILPITAS                 CA          95035          SFD         7.250        6.500        $1,991.96    360
4969508               BENTONVILLE              AR          72712          SFD         7.000        6.500        $2,514.84    360
4970119               HOLLAND                  PA          18966          SFD         7.500        6.500        $1,793.49    360
4970295               JAMAICA                  NY          11432          SFD         7.000        6.500        $2,328.56    360
4971307               SAN JOSE                 CA          95138          SFD         7.125        6.500        $4,049.05    360
4971399               NOVATO                   CA          94945          SFD         7.375        6.500        $1,602.37    360
4971944               BERKELEY HEIGHTS         NJ          07922          SFD         7.250        6.500        $1,933.97    360
4972864               SCOTTSDALE               AZ          85253          SFD         7.000        6.500        $1,745.76    360
4973682               MERRICK                  NY          11566          SFD         7.250        6.500        $2,135.22    360
4974273               WEST LAFAYETTE           IN          47906          SFD         7.500        6.500        $3,146.47    360
4974629               FREMONT                  CA          94539          SFD         7.500        6.500        $3,261.14    360
4974989               MEDFORD                  NJ          08055          SFD         7.250        6.500        $2,012.42    360
4975085               ALPHARETTA               GA          30022          SFD         7.250        6.500        $2,365.79    360
4975539               SAINT GEORGE             UT          84770          SFD         7.125        6.500        $1,994.21    360
4975578               STAMFORD                 CT          06902          SFD         6.375        6.108        $2,632.74    360
4975866               MASSAPEQUA               NY          11758          SFD         6.875        6.500        $2,326.48    240
4976753               GLEN COVE                NY          11542          SFD         7.500        6.500        $1,363.47    360
4976776               ROCKVILLE CENTRE         NY          11570          SFD         6.875        6.500        $1,839.41    360
4977384               ELMSFORD                 NY          10523          SFD         7.250        6.500        $2,728.71    360
4977488               CARBONDALE               IL          62901          SFD         7.250        6.500        $2,285.29    360
4977544               SOUTH SAN FRANCISCO      CA          94080          SFD         7.125        6.500        $2,021.16    360
4977546               MUTTONTOWN               NY          11791          SFD         6.250        5.983        $3,478.81    360
4977961               BOLTON                   MA          01740          SFD         7.000        6.500        $2,627.95    360
4978300               GLEN ROCK                NJ          07452          SFD         6.875        6.500        $1,654.81    360
4979145               WILTON                   CT          06897          SFD         7.000        6.500        $3,454.26    360
4979574               WALL TOWNSHIP            NJ          07719          SFD         7.625        6.500        $2,862.32    360
4979727               WHITE PLAINS             NY          10605          SFD         7.250        6.500        $3,240.34    360
4979797               FREMONT                  CA          94538          SFD         7.125        6.500        $2,256.96    360
4980261               BLOOMFIELD HILLS         MI          48304          SFD         7.250        6.500        $6,733.08    360
4980524               ESTES PARK               CO          80517          SFD         7.250        6.500        $1,773.66    360
4980733               FAIRFAX                  VA          22039          SFD         6.500        6.233        $2,199.60    360
4981183               SOUTHBURY                CT          06488          SFD         6.750        6.483        $1,686.36    360
4981310               SUNNYVALE                CA          94087          SFD         6.875        6.500        $2,923.34    360
4981440               PINE BROOK               NJ          07058          SFD         7.500        6.500        $1,925.64    360
4982087               HAMPTON BAYS             NY          11946          SFD         6.625        6.358        $1,920.93    360
4982323               HERMOSA BEACH            CA          90254          SFD         7.250        6.500        $3,410.89    360
4982575               ORINDA                   CA          94563          SFD         7.500        6.500        $3,209.40    360
4983069               NEW YORK                 NY          10003          COP         7.375        6.500        $1,346.82    360
4984178               MARSHALL                 VA          20115          SFD         7.125        6.500        $1,879.68    360
4984218               SUNNYVALE                CA          94087          SFD         7.250        6.500        $2,592.27    360
4984755               MERRICK                  NY          11566          SFD         7.375        6.500         $835.72     360
4984849               COLLEYVILLE              TX          76034          SFD         7.000        6.500        $2,528.15    360
4985491               CARDIFF BY THE SEA       CA          92007          LCO         7.125        6.500        $2,543.29    360
4985532               DALLAS                   TX          75287          SFD         6.750        6.483        $4,215.89    360
4985703               SAN DIEGO                CA          92123          SFD         7.000        6.500        $2,075.74    360
4985922               RUMSON                   NJ          07760          SFD         7.125        6.500        $3,031.74    360
4985932               NEW YORK                 NY          10128          HCO         7.125        6.500        $3,368.60    360
4985946               NEW CANAAN               CT          06840          SFD         7.000        6.500        $3,659.17    360
4986289               FRISCO                   TX          75034          SFD         7.000        6.500        $1,995.91    360
4986361               MONTGOMERY               NJ          08802          SFD         7.250        6.500        $2,061.88    360
4986888               COTO DE CAZA             CA          92679          SFD         6.875        6.500        $4,266.76    360
4987189               LEXINGTON                MA          02421          SFD         7.125        6.500        $2,358.02    360
4987344               WEST LAFAYETTE           IN          47906          SFD         6.875        6.500        $2,653.99    360
4987387               SUPERIOR                 CO          80027          SFD         7.000        6.500        $1,827.25    360
4987391               SODDY DAISY              TN          37379          SFD         7.250        6.500        $1,978.31    360
4987449               LIVERMORE                CA          94550          SFD         7.125        6.500        $3,660.32    360
4987529               GREENWICH                CT          06830          SFD         7.000        6.500        $4,324.47    360
4987803               NANTUCKET                MA          02554          SFD         7.250        6.500        $1,971.49    360
4987815               JERICHO                  NY          11753          SFD         7.250        6.500        $1,829.09    360
4988000               WEST HARTFORD            CT          06117          SFD         7.125        6.500        $1,751.67    360
4988039               PLYMOUTH                 MN          55442          SFD         7.000        6.500        $1,969.30    360
4988119               BULVERDE                 TX          78163          SFD         7.000        6.500        $1,862.85    360
4988204               GREENSBORO               GA          30642          SFD         6.875        6.500        $1,970.79    360
4988303               STERLING                 VA          20165          SFD         6.500        6.233        $2,022.62    360
4988724               MEDINA                   MN          55391          SFD         7.125        6.500        $2,640.98    360
4988803               FISHERS                  IN          46038          SFD         7.375        6.500        $2,646.55    352
4989155               ARLINGTON                VA          22205          SFD         7.500        6.500        $1,900.47    360
4989287               PLEASANTVILLE            NY          10570          SFD         7.000        6.500        $3,293.25    360
4989483               WALNUT CREEK             CA          94598          SFD         7.000        6.500        $1,902.77    360
4989518               EVERETT                  WA          98201          SFD         7.125        6.500        $1,886.41    360
4990003               OLDSMAR                  FL          34677          SFD         7.250        6.500        $2,694.60    360
4990063               PLYMOUTH                 MN          55446          SFD         7.250        6.500        $2,491.31    360
4990146               PORTOLA VALLEY           CA          94028          SFD         7.250        6.500        $2,046.53    360
4990197               STUDIO CITY              CA          91604          SFD         7.250        6.500        $2,510.41    360
4990215               SILVER SPRING            MD          20905          SFD         6.750        6.483        $3,109.71    360
4990359               BROWNSBURG               IN          46112          SFD         7.250        6.500        $2,051.36    357
4990402               LAKE ZURICH              IL          60047          SFD         7.125        6.500        $1,805.57    360
4990521               MANHASSET                NY          11030          SFD         7.250        6.500        $4,348.87    360
4990639               LIVERMORE                CA          94550          SFD         7.000        6.500        $1,795.99    360
4990645               SAN JOSE                 CA          95129          SFD         6.875        6.500        $3,027.13    360
4990816               MONTVALE                 NJ          07645          SFD         7.250        6.500        $2,373.98    360
4991057               HARTSDALE                NY          11043          SFD         7.375        6.500        $2,099.65    360
4991272               SOUTHLAKE                TX          76092          SFD         7.375        6.500        $2,729.55    360
4991526               NEWTON                   MA          02158          SFD         7.125        6.500        $2,883.52    360
4991880               MILLBURN                 NJ          07041          SFD         7.375        6.500        $2,044.40    360
4992181               SOUTHAMPTON              NY          11968          SFD         7.250        6.500        $2,319.40    360
4992185               NORTH EASTON             MA          02356          SFD         7.500        6.500        $2,034.72    360
4992433               NEW YORK                 NY          10014          LCO         7.375        6.500        $2,417.37    360
4992623               WESTFIELD                NJ          07090          SFD         7.250        6.500        $1,931.25    360
4992981               FAIRFIELD                CT          06430          SFD         6.875        6.500        $2,299.26    360
4993137               LA QUINTA                CA          92253          LCO         7.625        6.500        $2,226.29    240
4993164               VICTORIA                 MN          55386          SFD         7.250        6.500        $2,080.64    360
4993197               EAGAN                    MN          55123          SFD         7.375        6.500        $2,895.31    360
4993199               BOONTON                  NJ          07005          SFD         6.500        6.233        $2,370.26    360
4993200               TAOS                     NM          87571          SFD         7.625        6.500        $3,170.92    360
4993272               ARLINGTON                VA          22202          SFD         7.375        6.500        $1,920.08    360
4993427               DENVILLE                 NJ          07834          SFD         7.000        6.500        $1,972.63    360
4993456               FAIRFIELD                CT          06490          SFD         7.000        6.500        $3,003.85    360
4993480               DENVER                   CO          80220          SFD         7.375        6.500        $1,824.76    360
4993620               MOUNTAIN VIEW            CA          94041          SFD         7.250        6.500        $2,253.92    360
4993868               KAILUA                   HI          96734          SFD         7.250        6.500        $3,378.48    360
4993922               NORTH HILLS              NY          11030          SFD         7.500        6.500        $4,543.15    360
4994328               BETHESDA                 MD          20816          LCO         6.875        6.500        $2,140.28    360
4994451               HOLLISTER                CA          95023          SFD         7.000        6.500        $2,208.14    360
4994585               SOUTH DENNIS             MA          02660          SFD         7.750        6.500        $3,152.22    360
4994627               WESTFIELD                NJ          07090          SFD         7.250        6.500        $2,619.56    360
4994724               FULLERTON                CA          92833          SFD         6.875        6.500        $1,718.53    360
4994751               SANTA BARBARA            CA          93111          SFD         7.250        6.500        $1,893.04    360
4994772               THE WOODLANDS            TX          77380          SFD         7.250        6.500        $2,046.53    360
4994846               DARIEN                   CT          06820          SFD         6.750        6.483        $2,587.91    360
4994906               SEATTLE                  WA          98177          SFD         7.375        6.500        $3,453.38    360
4994999               MANASSAS                 VA          20111          SFD         6.500        6.233        $2,930.27    360
4995384               PLEASANTON               CA          94566          SFD         7.375        6.500        $4,489.39    360
4995449               ROCKFORD                 IL          61107          SFD         7.375        6.500        $2,072.03    360
4995468               PELHAM                   NY          10803          SFD         7.250        6.500        $2,586.82    360
4995685               BOCA RATON               FL          33496          SFD         7.375        6.500        $1,967.39    360
4995709               SAN DIEGO                CA          92129          LCO         6.875        6.500         $604.37     360
4995872               CHARLOTTE                NC          28211          SFD         6.750        6.483        $1,135.05    360
4995874               WATERBURY                VT          05676          SFD         6.875        6.500        $2,553.82    360
4995906               PRINCETON                NJ          08540          SFD         7.250        6.500        $2,201.39    360
4995955               COHASSET                 MA          02025          SFD         6.875        6.500        $1,970.79    360
4995990               HOLLIDAYSBURG            PA          16648          SFD         7.500        6.500        $1,908.86    360
4996142               JACKSON                  MS          39211          SFD         7.250        6.500        $2,728.71    360
4996421               HOPEWELL TWP             NJ          08560          SFD         7.250        6.500        $1,773.66    360
4996513               LOS ALTOS                CA          94022          SFD         7.250        6.500        $6,821.77    360
4996709               MURPHYS                  CA          95247          SFD         7.625        6.500        $1,097.09    360
4996726               CARMEL VALLEY            CA          93924          SFD         7.500        6.500        $3,143.67    360
4996785               UNION CITY               CA          94587          SFD         7.125        6.500        $1,990.84    360
4996799               ALPHARETTA               GA          30004          SFD         6.625        6.358        $1,984.96    360
4996824               PACIFICA                 CA          94044          SFD         7.000        6.500        $1,630.00    360
4996901               BELMONT                  CA          94002          SFD         7.125        6.500        $1,819.05    360
4996904               FOX RIVER GROVE          IL          60021          SFD         7.250        6.500        $1,850.07    360
4997061               HINGHAM                  MA          02043          SFD         6.875        6.500        $2,660.56    360
4997130               SUNNYVALE                CA          94087          SFD         7.250        6.500        $2,762.82    360
4997134               BELMONT                  CA          94002          SFD         7.375        6.500        $2,127.28    360
4997172               BOCA RATON               FL          33496          SFD         7.375        6.500        $2,262.66    360
4997217               SOUTHPORT                CT          06490          SFD         7.125        6.500        $3,873.89    360
4997266               FAIRFIELD                CT          06430          SFD         7.000        6.500        $2,248.73    360
4997344               BELLE MEAD               NJ          08502          SFD         7.250        6.500        $1,964.67    360
4997354               RIDGEWOOD                NJ          07450          SFD         6.875        6.500        $2,186.26    360
4997710               ST. FRANCISVILLE         LA          70775          SFD         7.125        6.500        $2,155.90    360
4997732               SAN JOSE                 CA          95117          SFD         7.875        6.500        $1,986.70    360
4997735               HAWORTH                  NJ          07641          SFD         7.500        6.500        $3,295.05    360
4997744               CHANTILLY                VA          20151          SFD         6.875        6.500        $1,773.71    360
4997768               EAST HILLS               NY          11577          SFD         7.375        6.500        $2,072.03    360
4997813               EL DORADO HILLS          CA          95762          SFD         7.125        6.500        $2,267.07    360
4997890               EVANSTON                 IL          60201          SFD         7.375        6.500        $2,002.96    360
4998013               FOSTER CITY              CA          94404          SFD         7.125        6.500        $2,754.44    360
4998072               EL GRANADA               CA          94019          SFD         7.375        6.500        $1,906.27    360
4998162               EASTON                   CT          06612          SFD         7.250        6.500        $3,329.03    360
4998190               LONGWOOD                 FL          32779          SFD         7.125        6.500        $2,258.31    360
4998347               FRANKLIN TOWNSHIP        NJ          08867          SFD         7.125        6.500        $2,031.27    360
4998461               AMAGANSETT               NY          11930          SFD         7.500        6.500        $3,093.89    360
4998481               CHILMARK                 MA          02535          SFD         7.250        6.500        $2,558.17    360
4998530               BARRINGTON HILLS         IL          60010          SFD         7.375        6.500        $6,651.21    360
4999041               NEW YORK                 NY          10024          HCO         7.125        6.500        $1,743.25    360
4999047               NEW YORK                 NY          10016          LCO         6.875        6.500        $2,220.42    360
4999057               LUDLOW                   VT          05149          LCO         7.875        6.500        $2,283.97    360
4999164               MADISON                  CT          06443          SFD         6.875        6.500        $2,187.58    360
4999244               DOVER                    MA          02030          SFD         7.375        6.500        $2,154.91    360
4999263               SANTA BARBARA            CA          93105          SFD         7.125        6.500        $2,425.39    360
4999446               IRVINE                   CA          92620          SFD         7.125        6.500        $2,336.46    360
4999488               TEANECK                  NJ          07666          SFD         7.625        6.500        $2,236.63    360
4999523               WESTPORT                 CT          06880          SFD         7.125        6.500        $4,042.32    360
4999664               BOSTON                   MA          02116          LCO         7.250        6.500        $2,046.53    360
4999787               RYE                      NY          10580          SFD         7.125        6.500        $3,112.58    360
5000006               HANOVER                  MA          02339          SFD         6.625        6.358        $1,917.74    360
5000028               MINNETONKA               MN          55345          SFD         7.250        6.500        $1,991.87    349
5000137               EAST SANDWICH            MA          02537          SFD         7.250        6.500        $2,504.27    360
5000176               NAPERVILLE               IL          60540          SFD         7.500        6.500        $2,158.48    360
5000246               BRIELLE                  NJ          08730          SFD         7.375        6.500        $2,099.65    360
5000297               BOSTON                   MA          02116          LCO         7.250        6.500        $2,510.41    360
5000437               SHOREWOOD                MN          55331          SFD         7.250        6.500        $2,438.63    321
5000450               DUBLIN                   OH          43017          SFD         7.000        6.500        $1,622.68    360
5000560               PARAGOULD                AR          72450          SFD         6.875        6.500        $2,759.10    360
5000576               SEABROOK                 MD          20706          SFD         7.250        6.500         $960.50     360
5000584               DARIEN                   CT          06820          SFD         6.625        6.358        $3,265.59    360
5000588               FARMERS BRANCH           TX          75234          SFD         7.375        6.500         $569.12     360
5000626               MOUNTAIN VIEW            CA          94040          SFD         7.375        6.500        $1,857.92    360
5000738               MELROSE                  MA          02176          SFD         7.375        6.500        $1,899.36    360
5000772               SANTA CLARA              CA          95051          SFD         7.000        6.500        $2,299.29    360
5000788               UNION CITY               CA          94587          SFD         7.125        6.500        $2,555.42    360
5000905               BRIDGEPORT               TX          76426          SFD         7.000        6.500         $325.67     360
5000974               NEWARK                   DE          19711          SFD         6.500        6.233        $1,795.08    360
5000976               BALTIMORE                MD          21219          SFD         7.375        6.500        $2,002.27    360
5001132               CAMBRIDGE                MA          02138          SFD         6.625        6.358        $3,201.56    360
5001211               MANHASSET                NY          11030          SFD         6.750        6.483        $2,419.28    360
5001346               CHICAGO                  IL          60600          LCO         6.625        6.358        $2,881.40    360
5001372               MANHASSET                NY          11030          SFD         7.125        6.500        $2,492.76    360
5001383               LONG BEACH               NY          11561          HCO         7.250        6.500        $2,401.26    360
5001397               GREAT NECK               NY          11021          SFD         7.375        6.500        $3,280.71    360
5001497               MARLBORO                 NJ          07746          SFD         7.375        6.500        $1,812.33    360
5001585               PLEASANTON               CA          94566          SFD         6.750        6.483        $4,196.43    360
5001623               FRANKLIN                 TN          37069          SFD         7.125        6.500        $4,286.19    360
5001701               RIDGEFIELD               CT          06877          SFD         6.625        6.358        $1,587.97    360
5001713               BYRON                    CA          94514          SFD         6.875        6.500        $2,774.87    360
5001783               BLUE BELL                PA          19422          SFD         6.500        6.233        $2,063.70    360
5001808               FRANKLIN                 TN          37067          SFD         7.000        6.500        $1,951.34    360
5001816               CAMARILLO                CA          93010          SFD         7.750        6.500        $2,411.45    360
5001993               EDWARDS                  CO          81632          SFD         7.375        6.500        $3,038.97    360
5002122               LA JOLLA                 CA          92037          LCO         7.125        6.500        $2,021.16    360
5002123               LEBANON                  OH          45036          SFD         7.250        6.500        $1,964.67    360
5002200               RED BANK                 NJ          07701          SFD         7.250        6.500        $1,684.98    360
5002224               MOUNTAIN VIEW            CA          94043          SFD         7.250        6.500        $1,764.45    360
5002251               VALENCIA                 CA          91354          SFD         7.250        6.500        $2,650.94    360
5002320               LOS ANGELES              CA          90027          SFD         7.375        6.500        $4,489.39    360
5002334               TACOMA                   WA          98422          SFD         7.250        6.500        $2,455.84    360
5002424               BETHESDA                 MD          20814          SFD         7.000        6.500        $2,900.72    360
5002437               NIWOT                    CO          80503          SFD         7.125        6.500        $1,812.31    360
5002507               SAN JOSE                 CA          95136          SFD         7.375        6.500        $1,773.66    360
5002549               LARCHMONT                NY          10538          SFD         6.625        6.358        $3,169.54    360
5002559               SANTA CRUZ               CA          95060          SFD         6.750        6.483        $2,357.13    240
5002627               CHICAGO                  IL          60640          LCO         7.000        6.500        $1,611.03    360
5002700               FALLS CHURCH             VA          22043          SFD         6.625        6.358        $2,212.92    360
5002772               WESTPORT                 CT          06880          SFD         7.125        6.500        $2,526.45    360
5002779               FRESNO                   CA          93711          SFD         6.875        6.500        $3,941.58    360
5002784               NAPERVILLE               IL          60540          SFD         7.250        6.500        $1,983.87    348
5002789               FREMONT                  CA          94539          SFD         7.375        6.500        $2,590.04    360
5002793               VIRGINIA BEACH           VA          23451          SFD         7.000        6.500        $2,328.56    360
5002894               NEWPORT BEACH            CA          92660          PUD         7.125        6.500        $4,244.43    360
5002931               ANDOVER                  NJ          07821          SFD         7.750        6.500        $1,397.01    360
5003027               OAKLAND                  CA          94618          SFD         7.125        6.500        $3,732.41    360
5003048               SAN MATEO                CA          94062          SFD         7.250        6.500        $3,811.66    360
5003064               TIERRA VERDE             FL          33715          SFD         7.000        6.500        $2,095.71    360
5003100               GLENDALE                 CA          91201          SFD         7.250        6.500        $2,974.29    360
5003128               SOUTH ORANGE             NJ          07079          SFD         7.500        6.500        $2,006.05    360
5003165               BROOKEVILLE              MD          20833          SFD         7.250        6.500        $5,846.26    360
5003168               WINTER PARK              FL          32789          SFD         7.000        6.500        $1,989.26    360
5003246               NEW YORK                 NY          10016          COP         7.625        6.500         $566.24     360
5003261               NEW YORK                 NY          10000          HCO         7.500        6.500        $1,787.20    360
5003368               JONESBORO                GA          30236          SFD         7.250        6.500        $2,145.09    240
5003372               OSSINING                 NY          10562          LCO         7.250        6.500        $1,753.19    360
5003432               WOODBURY                 NY          11797          LCO         6.875        6.500        $3,416.03    360
5003464               FERNANDINA BEACH         FL          32034          SFD         7.000        6.500        $1,633.99    360
5003529               HUNTINGTON BEACH         CA          92649          SFD         7.125        6.500        $1,953.79    360
5003557               WESTLAKE VILLAGE         CA          91361          SFD         7.375        6.500        $5,076.47    360
5003624               HOUSTON                  TX          77056          SFD         7.125        6.500        $2,231.36    360
5003630               CARPINTERIA              CA          93013          LCO         7.375        6.500        $2,345.54    360
5003735               RIDGEWOOD                NJ          07450          SFD         6.625        6.358        $2,273.11    360
5003749               HOPKINTON                MA          01748          SFD         7.000        6.500        $2,203.49    360
5003811               TALLAHASSEE              FL          32308          SFD         7.250        6.500        $1,887.59    360
5003884               FAIRFIELD                CT          06432          SFD         7.250        6.500        $1,944.21    360
5003908               OAKLAND                  CA          94641          SFD         7.375        6.500        $1,768.13    360
5004030               NORWOOD                  NJ          07648          SFD         7.250        6.500        $1,811.86    360
5004055               LOMBARD                  IL          60148          SFD         7.625        6.500        $1,785.06    360
5004160               LA JOLLA                 CA          92037          SFD         7.375        6.500        $2,417.37    360
5004274               ALPHARETTA               GA          30022          SFD         7.000        6.500        $2,333.79    360
5004305               MARLBOROUGH              MA          01752          SFD         7.625        6.500        $1,932.28    360
5004336               VERONA                   NJ          07044          SFD         7.500        6.500         $699.22     360
5004346               SOUTHOLD                 NY          11971          SFD         7.000        6.500        $1,708.50    360
5004574               SAN JOSE                 CA          95124          SFD         6.625        6.358        $1,903.01    360
5004637               EDMOND                   OK          73013          SFD         7.125        6.500        $3,522.69    240
5004760               COMMACK                  NY          11725          SFD         7.125        6.500        $2,021.16    360
5004855               LINCOLN                  MA          01773          SFD         7.250        6.500        $3,110.73    360
5004885               STAMFORD                 CT          06902          SFD         7.250        6.500        $1,702.71    360
5004891               SCARSDALE                NY          10583          SFD         7.375        6.500        $1,723.93    360
5004934               MIAMI                    FL          33157          SFD         7.250        6.500        $2,210.26    360
5004935               WALNUT CREEK             CA          94598          SFD         6.875        6.500        $3,941.58    360
5004936               FRANKLIN LAKES           NJ          07417          SFD         7.250        6.500        $2,592.27    360
5004983               WATERMILL                NY          11976          SFD         7.000        6.500        $2,474.93    360
5005026               SAN CARLOS               CA          94070          SFD         7.375        6.500        $2,852.49    360
5005273               SAN MATEO                CA          94402          SFD         7.000        6.500        $4,623.86    360
5005318               SANTA ROSA               CA          95401          SFD         7.500        6.500        $2,324.89    360
5005390               SUNNYVALE                CA          94087          SFD         7.000        6.500        $2,308.60    360
5005557               SHERMAN OAKS             CA          91403          SFD         7.125        6.500        $2,367.12    360
5005598               HEMPSTEAD                NY          11550          SFD         7.375        6.500        $2,030.59    360
5005777               WHITE PLAINS             NY          10605          SFD         7.000        6.500        $3,126.93    360
5005837               EAST HAMPTON             NY          11937          SFD         7.250        6.500        $2,813.98    360
5005909               GILROY                   CA          95020          SFD         7.250        6.500        $5,653.54    360
5005937               AUSTIN                   TX          78735          SFD         6.875        6.500        $2,627.72    360
5005941               HOUSTON                  TX          77030          SFD         6.875        6.500        $2,706.55    360
5006026               MAHOPAC                  NY          10541          SFD         7.750        6.500         $897.31     360
5006029               HILLSBOROUGH             CA          94010          SFD         7.250        6.500        $6,139.59    360
5006076               WESTON                   MA          02193          SFD         7.250        6.500        $2,128.39    360
5006184               WESTPORT                 CT          06880          SFD         7.375        6.500        $5,870.74    360
5006250               IRVINE                   CA          92606          SFD         7.000        6.500        $1,822.93    360
5006387               VILLA PARK               CA          92861          SFD         7.500        6.500        $2,740.93    360
5006419               HAGERSTOWN               MD          21742          SFD         7.125        6.500        $2,526.44    360
5006443               ROUND ROCK               TX          78681          SFD         6.625        6.358        $3,271.57    240
5006478               NEW YORK                 NY          10016          HCO         7.375        6.500        $1,761.23    360
5006570               SAN MARINO               CA          91108          SFD         7.375        6.500        $2,659.10    360
5006789               CASTRO VALLEY            CA          94552          SFD         7.750        6.500        $2,262.79    360
5006831               MILL VALLEY              CA          94941          SFD         7.625        6.500        $4,706.83    360
5006852               LITTLETON                CO          80123          SFD         6.875        6.500        $2,245.98    360
5006906               ISLAMORADA               FL          33036          SFD         7.375        6.500        $1,933.89    360
5007202               WESTLAKE VILLAGE         CA          91362          SFD         7.250        6.500        $2,155.68    360
5007264               CHESTERFIELD             MO          63005          SFD         7.250        6.500        $1,773.66    360
5007293               HILLSBOROUGH             CA          94010          SFD         7.125        6.500        $3,368.60    360
5007384               NEWTOWN                  PA          18940          SFD         7.000        6.500        $2,395.09    360
5007411               RIO RANCHO               NM          87124          SFD         7.000        6.500        $1,743.09    360
5007430               RAVENSDALE               WA          98051          SFD         7.250        6.500        $1,684.64    360
5007447               SAN RAFAEL               CA          94903          SFD         6.875        6.500        $2,529.18    360
5007462               CASTLE ROCK              CO          80104          SFD         7.125        6.500        $2,105.38    360
5007476               WESTON                   CT          06883          SFD         7.125        6.500        $2,640.98    360
5007502               GLEN COVE                NY          11542          SFD         7.125        6.500        $1,832.51    360
5007540               LANDENBERG               PA          19350          SFD         6.875        6.500        $2,060.13    360
5007586               FOREST HILLS             NY          11375          MF2         7.500        6.500        $3,188.42    360
5007589               WASHINGTON               DC          20016          SFD         7.375        6.500        $2,762.71    360
5007602               CHESTERFIELD             MO          63017          SFD         7.250        6.500        $1,973.20    360
5007607               KAYSVILLE                UT          84037          SFD         7.125        6.500        $3,732.40    360
5007624               ROSEVILLE                CA          95746          SFD         7.250        6.500        $2,351.47    360
5007628               OSSINING                 NY          10562          LCO         7.375        6.500        $1,857.92    360
5007647               WALNUT CREEK             CA          94598          SFD         7.000        6.500        $2,543.12    360
5007682               ST. AUGUSTINE            FL          32095          SFD         6.625        6.358        $1,864.59    360
5007747               LA CRESCENTA AREA        CA          91214          SFD         7.125        6.500        $1,293.54    360
5007784               WESTPORT                 CT          06880          SFD         7.000        6.500        $3,246.68    360
5007787               PASADENA                 CA          91105          SFD         7.000        6.500        $2,181.86    360
5007790               WEST HOLLYWOOD           CA          90048          SFD         7.500        6.500        $3,015.37    360
5007804               SAN JOSE                 CA          95125          SFD         7.000        6.500        $1,969.30    360
5007834               SANTA BARBARA            CA          93111          SFD         7.000        6.500        $1,829.59    360
5007977               NEW YORK                 NY          10014          HCO         7.125        6.500        $3,367.92    360
5008084               ALPHARETTA               GA          30004          SFD         7.750        6.500        $1,753.07    360
5008091               MCKINNEY                 TX          75070          SFD         7.000        6.500        $2,581.38    360
5008185               LOS ALTOS                CA          94024          SFD         7.125        6.500        $1,899.89    360
5008302               SAN JOSE                 CA          95124          SFD         7.250        6.500        $2,182.97    360
5008344               SAN CARLOS               CA          94070          SFD         7.000        6.500        $1,796.32    360
5008362               FAIRFIELD                CT          06430          SFD         7.125        6.500        $2,263.70    360
5008570               HAYWARD                  CA          94542          SFD         7.625        6.500        $2,236.63    360
5008592               EL CAJON                 CA          92019          SFD         6.875        6.500        $3,284.65    360
5008635               NEW CANAAN               CT          06840          SFD         7.375        6.500        $5,245.68    360
5008658               SUNNYVALE                CA          94086          SFD         7.250        6.500        $2,251.19    360
5008781               SAN JOSE                 CA          95125          SFD         7.625        6.500        $2,321.56    360
5008828               VIENNA                   VA          22181          SFD         7.000        6.500        $2,182.20    360
5008915               SEATTLE                  WA          98112          SFD         7.125        6.500        $3,179.95    360
5008916               EDMONDS                  WA          98020          SFD         7.000        6.500        $1,995.91    360
5008961               HOUSTON                  TX          77005          SFD         7.000        6.500        $2,140.28    360
5009151               TALLAHASSEE              FL          32312          SFD         8.000        6.500         $572.34     360
5009240               CHESTNUT HILL            MA          02167          SFD         7.375        6.500        $2,493.34    360
5009357               FISHERS                  IN          46038          SFD         7.500        6.500        $3,496.07    360
5009510               SIMI VALLEY              CA          93065          SFD         7.375        6.500        $1,968.43    360
5009614               DIX HILLS                NY          11746          SFD         7.500        6.500        $3,524.05    360
5009617               VIENNA                   VA          22182          SFD         7.250        6.500        $2,182.96    360
5009849               DALLAS                   TX          75230          SFD         7.125        6.500        $2,614.03    360
5009876               DALLAS                   TX          75205          SFD         7.250        6.500        $1,937.39    360
5009927               EAST NORTHPORT           NY          11731          SFD         7.250        6.500        $1,725.91    360
5010012               SAN JOSE                 CA          95129          SFD         7.875        6.500        $2,001.20    360
5010036               SNOHOMISH                WA          98290          SFD         7.000        6.500        $2,102.36    360
5010108               FOUNTAIN VALLEY          CA          92708          SFD         7.875        6.500        $2,328.93    360
5010134               NOVATO                   CA          94947          SFD         7.375        6.500        $2,023.68    360
5010166               PALO ALTO                CA          94303          SFD         7.250        6.500        $2,387.62    360
5010211               STONE MOUNTAIN           GA          30087          SFD         7.250        6.500        $2,308.88    360
5010242               GOLETA                   CA          93117          SFD         7.125        6.500        $2,122.22    360
5010287               ROGERS                   AR          72758          SFD         7.125        6.500        $2,243.48    360
5010315               EAST HAMPTON             NY          11937          SFD         7.750        6.500        $2,489.54    360
5010498               CLAREMONT                CA          91711          SFD         7.000        6.500        $1,729.79    360
5010567               NEWTON                   MA          02159          SFD         7.250        6.500        $3,410.89    360
5010662               LARKSPUR                 CA          94939          SFD         7.125        6.500        $2,793.92    360
5010729               MOUNT PLEASANT           SC          29464          SFD         7.000        6.500        $2,095.71    360
5010754               YORKVILLE                CA          95494          SFD         7.000        6.500        $2,937.98    360
5010758               LOS ANGELES              CA          90048          SFD         7.000        6.500        $2,953.95    360
5010790               DALLAS                   TX          75230          SFD         6.875        6.500        $1,740.87    360
5010794               RIVERSIDE                CA          92506          SFD         7.500        6.500        $3,211.49    360
5010800               CLEARWATER               FL          33767          SFD         7.125        6.500        $2,694.88    360
5010824               RIDGEFIELD               NJ          07657          SFD         7.000        6.500        $2,295.30    360
5010853               PLANO                    TX          75093          SFD         7.000        6.500        $2,007.89    360
5010882               WALNUT CREEK             CA          94596          SFD         7.375        6.500        $2,873.21    360
5010886               OXNARD                   CA          93030          SFD         6.875        6.500        $2,230.28    360
5011009               SAN DIEGO                CA          92131          SFD         6.750        6.483        $4,202.92    360
5011075               STAMFORD                 CT          06902          SFD         7.375        6.500        $2,348.30    360
5011214               DALLAS                   TX          75230          SFD         6.875        6.500        $1,708.02    360
5011388               SAN ANTONIO              TX          78112          SFD         6.750        6.483        $4,215.89    360
5011460               NORTHPORT                MI          49670          SFD         7.375        6.500        $4,489.39    360
5011476               LOS GATOS                CA          95032          SFD         6.875        6.500        $3,032.39    360
5011640               TUSTIN                   CA          92782          SFD         6.625        6.358        $1,920.94    360
5011709               LONG VALLEY              NJ          07853          SFD         7.250        6.500        $2,046.53    360
5011757               BLUFFTON                 SC          29910          SFD         7.250        6.500        $3,069.80    360
5011803               EVERETT                  WA          98203          SFD         7.000        6.500        $2,245.40    360
5011822               NORMANDY PARK            WA          98166          SFD         7.000        6.500        $1,676.57    360
5011838               IRVINE                   CA          92602          SFD         7.375        6.500        $2,230.89    360
5011844               CARMEL                   CA          93923          SFD         7.375        6.500        $3,387.77    360
5011989               MOUNTAIN VIEW            CA          94040          SFD         7.250        6.500        $2,831.04    360
5012036               LEBANON                  NJ          08833          SFD         7.500        6.500        $2,796.86    360
5012063               LUDLOW                   VT          05149          LCO         7.500        6.500        $2,041.71    360
5012143               PALO ALTO                CA          94303          SFD         7.375        6.500        $6,216.08    360
5012154               SARATOGA                 CA          95070          SFD         6.500        6.233        $3,792.41    360
5012192               MANHATTAN BEACH          CA          90266          SFD         7.625        6.500        $2,307.41    360
5012229               LAKE MARY                FL          32746          SFD         7.375        6.500        $2,253.33    360
5012352               MISSION VIEJO            CA          92692          SFD         7.625        6.500        $2,431.28    360
5012376               LOS OSOS                 CA          93402          SFD         7.375        6.500        $1,852.05    360
5012474               OAKLAND                  CA          94609          SFD         7.625        6.500        $1,846.64    360
5012511               OAKLAND                  CA          94611          SFD         7.375        6.500        $4,489.39    360
5012598               RIVERSIDE                CA          92056          SFD         7.375        6.500        $2,148.00    360
5012661               ESCALON                  CA          95320          SFD         7.875        6.500        $1,819.93    360
5012668               SAN JOSE                 CA          95129          SFD         7.125        6.500        $2,883.52    360
5012724               YORBA LINDA              CA          92886          SFD         7.250        6.500        $1,998.78    360
5012792               FULLERTON                CA          92831          SFD         6.750        6.483        $1,764.19    360
5012941               AUSTIN                   TX          78733          SFD         6.750        6.483        $2,270.10    360
5013000               HUNTINGTON BEACH         CA          92649          LCO         7.125        6.500        $2,593.82    360
5013002               SAN JUAN CAPISTRANO      CA          92675          SFD         7.000        6.500        $1,729.79    360
5013066               ARCADIA                  CA          91006          SFD         6.750        6.483        $4,864.49    360
5013102               SEAL BEACH               CA          90740          SFD         7.000        6.500        $2,022.52    360
5013195               SATELLITE BEACH          FL          32937          SFD         7.250        6.500        $2,251.19    360
5013340               MANHASSET                NY          11030          SFD         6.875        6.500        $2,759.11    360
5013605               NAGS HEAD                NC          27959          SFD         7.500        6.500        $3,496.08    360
5013635               BRENTWOOD                MO          63144          SFD         7.500        6.500        $1,849.43    360
5013675               UNIVERSITY PARK          TX          75205          SFD         6.875        6.500        $2,943.04    360
5013817               BRADENGTON               FL          34202          SFD         7.250        6.500        $1,697.94    360
5013822               LIGHTHOUSE POINT         FL          33064          SFD         7.250        6.500        $1,891.00    360
5014003               LAFAYETTE                CA          94549          SFD         6.875        6.500        $1,970.79    360
5014053               SAN JOSE                 CA          95129          SFD         7.250        6.500        $3,110.73    360
5014192               MILPITAS                 CA          95035          SFD         6.875        6.500        $1,934.00    360
5014223               MOUNTAIN VIEW            CA          94043          PUD         7.875        6.500        $2,349.23    360
5014264               CRARYVILLE               NY          12521          SFD         7.375        6.500        $1,004.94    360
5014291               SAN RAMON                CA          94583          SFD         7.250        6.500        $2,046.53    360
5014296               MILL VALLEY              CA          94941          SFD         6.875        6.500        $2,286.12    360
5014313               SUNNYVALE                CA          94087          SFD         7.125        6.500        $1,886.42    360
5014355               KEY WEST                 FL          33040          SFD         7.250        6.500        $2,155.68    360
5014417               SANTA BARBARA            CA          93108          SFD         7.375        6.500        $4,938.33    360
5014420               SEATTLE                  WA          98112          SFD         7.000        6.500        $3,339.82    360
5014460               WASHINGTON               DC          20007          SFD         7.125        6.500        $2,189.59    360
5014489               PHOENIX                  AZ          85028          SFD         6.875        6.500        $2,299.25    360
5014512               CAMARILLO                CA          93012          SFD         7.250        6.500        $2,360.33    360
5014516               LANOKA HARBOR            NJ          08734          SFD         7.500        6.500        $1,901.87    360
5014538               RENTON                   WA          98059          SFD         6.875        6.500        $1,658.75    360
5014551               NEWPORT COAST            CA          92657          SFD         7.875        6.500        $2,537.75    360
5014614               SANTA BARBARA            CA          93105          SFD         7.250        6.500        $2,455.84    360
5014713               ALAMEDA                  CA          94501          SFD         8.000        6.500        $2,436.10    360
5014719               CONCORD                  MA          01742          SFD         7.250        6.500        $2,967.47    360
5014769               SAN CLEMENTE             CA          92672          HCO         7.875        6.500        $2,229.59    360
5014814               MILL VALLEY              CA          94941          SFD         7.000        6.500        $4,324.47    360
5014827               PLEASANTON               CA          94566          SFD         7.125        6.500        $1,872.94    360
5014959               SAN JOSE                 CA          95131          SFD         7.875        6.500        $2,687.11    360
5015142               CAMBRIDGE                MA          02139          SFD         7.125        6.500        $4,850.78    360
5015149               LAGUNA NIGUEL            CA          92677          SFD         7.000        6.500        $2,464.29    360
5015174               SAN MATEO                CA          94402          SFD         7.000        6.500        $3,991.82    360
5015295               MARCO ISLAND             FL          34145          HCO         7.750        6.500         $361.08     360
5015327               RANCHO PALOS VERDES      CA          90275          SFD         7.250        6.500        $4,570.59    360
5015457               CAMBRIDGE                MA          02138          SFD         7.250        6.500        $5,027.64    360
5015471               LOS ALTOS                CA          94022          SFD         6.625        6.358        $3,521.72    360
5015519               SAN JOSE                 CA          95125          SFD         7.000        6.500        $3,259.98    360
5015543               HOUSTON                  TX          77005          SFD         7.500        6.500        $1,745.24    360
5015577               SANTA CRUZ               CA          95062          SFD         6.750        6.483        $2,036.60    360
5015583               SAN JOSE                 CA          95112          SFD         7.375        6.500        $2,092.75    360
5015585               SALEM                    VA          24153          SFD         7.000        6.500        $1,860.19    360
5015652               CAROLINA BEACH           NC          28428          SFD         7.000        6.500        $2,015.87    360
5015657               HOUSTON                  TX          77005          SFD         6.875        6.500        $1,826.27    360
5015668               SAN JOSE                 CA          95123          SFD         8.000        6.500        $3,287.27    360
5015678               SANTA CLARA              CA          95050          SFD         7.750        6.500        $2,005.96    360
5015725               FREMONT                  CA          94539          SFD         7.125        6.500        $3,368.60    360
5015727               NORTHRIDGE               CA          91326          SFD         7.000        6.500        $2,993.87    360
5015924               GLENN DALE               MD          20769          SFD         7.000        6.500        $1,649.96    360
5015952               SAINT PETERSBURG         FL          33701          SFD         7.125        6.500        $2,061.58    360
5016032               TACOMA                   WA          98406          SFD         6.750        6.483        $1,790.14    360
5016034               IRVINE                   CA          92620          SFD         7.750        6.500        $2,041.78    360
5016051               BELLEVUE                 WA          98006          SFD         6.875        6.500        $2,029.92    360
5016059               SEATTLE                  WA          98109          SFD         7.000        6.500        $1,993.92    360
5016063               TRACY                    CA          95376          SFD         7.125        6.500        $1,765.15    360
5016074               HAYWARD                  CA          94541          SFD         7.250        6.500        $2,483.13    360
5016102               FORT LAUDERDALE          FL          33308          SFD         6.875        6.500        $2,627.72    360
5016114               LOS ALTOS HILLS          CA          94022          SFD         7.250        6.500        $2,435.37    360
5016145               GRASS VALLEY             CA          95949          SFD         7.375        6.500        $3,384.31    360
5016146               WATAUGA                  TX          76148          SFD         7.000        6.500         $489.66     360
5016165               SAN FRANCISCO            CA          94107          HCO         7.500        6.500        $2,321.40    360
5016173               PARK CITY                UT          84060          LCO         7.125        6.500        $2,560.14    360
5016252               SAN JOSE                 CA          95131          PUD         7.000        6.500        $1,809.63    360
5016260               SAN FRANCISCO            CA          94112          SFD         7.000        6.500        $2,395.09    360
5016316               TAMPA                    FL          33606          SFD         7.000        6.500        $2,328.56    360
5016324               GLENMOORE                PA          19343          SFD         6.500        6.233        $1,588.71    360
5016350               DUXBURY                  MA          02332          SFD         7.375        6.500        $1,864.83    360
5016355               MILPITAS                 CA          95035          SFD         7.250        6.500        $1,862.35    360
5016356               AURORA                   CO          80015          SFD         7.500        6.500        $1,966.19    360
5016376               TIBURON                  CA          94920          LCO         7.375        6.500        $2,334.49    360
5016444               BEDFORD                  MA          01730          SFD         7.000        6.500        $2,564.75    360
5016476               LOS ALTOS                CA          94024          SFD         7.125        6.500        $2,492.76    360
5016481               FOSTER CITY              CA          94404          SFD         7.375        6.500        $2,257.13    360
5016482               SAINT GEORGE             UT          84790          SFD         7.000        6.500        $1,756.40    360
5016486               FREMONT                  CA          94536          SFD         7.250        6.500        $1,719.09    360
5016494               SANTA FE                 NM          87501          SFD         7.000        6.500        $2,102.36    360
5016522               MORAGA                   CA          94556          SFD         7.375        6.500        $2,697.78    360
5016526               SAN JOSE                 CA          95148          SFD         6.625        6.358        $2,894.21    360
5016561               TAVERNIER                FL          33070          SFD         7.000        6.500        $1,789.67    360
5016565               WATSONVILLE              CA          95076          SFD         6.500        6.233        $3,520.62    360
5016573               SARATOGA                 CA          95070          SFD         7.375        6.500        $2,002.96    360
5016598               DALLAS                   TX          75209          SFD         7.000        6.500        $2,597.35    360
5016606               SAN JOSE                 CA          95136          SFD         7.000        6.500        $1,995.91    360
5016760               AGOURA HILLS             CA          91301          SFD         7.125        6.500        $1,818.37    360
5016766               NAPERVILLE               IL          60565          SFD         6.500        6.233        $1,825.42    360
5016768               SANTA BARBARA            CA          93111          SFD         7.375        6.500        $2,673.20    240
5016771               REDWOOD CITY             CA          94061          LCO         7.500        6.500        $2,122.12    360
5016786               DANVILLE                 CA          94506          SFD         7.250        6.500        $1,875.99    360
5016790               BENICIA                  CA          94510          SFD         6.875        6.500        $1,839.40    360
5016805               ROLLING HILLS            CA          90274          SFD         7.875        6.500        $6,699.65    360
5016825               COLUMBUS                 OH          43220          SFD         7.375        6.500        $2,072.03    360
5016828               SAN RAMON                CA          94583          SFD         7.375        6.500        $1,954.61    360
5016835               BURBANK                  CA          91501          SFD         6.750        6.483        $2,231.18    360
5016945               NEWBURY PARK             CA          91320          SFD         6.625        6.358        $1,992.65    360
5016946               CUPERTINO                CA          95014          SFD         7.125        6.500        $2,118.85    360
5016950               SAN DIEGO                CA          92131          SFD         7.125        6.500        $2,370.82    360
5016973               ALLENDALE                NJ          07401          SFD         6.875        6.500        $2,332.10    360
5016997               NORTH HOLLYWOOD          CA          91606          SFD         7.500        6.500        $2,307.41    360
5017018               SAN ANTONIO              TX          78209          SFD         6.875        6.500        $5,912.36    360
5017029               LOS ALTOS                CA          94024          SFD         7.375        6.500        $1,989.15    360
5017040               PORTOLA VALLEY           CA          94028          SFD         7.000        6.500        $1,995.91    360
5017066               SAN DIEGO                CA          92131          SFD         7.250        6.500        $1,893.04    360
5017068               CUPERTINO                CA          95014          SFD         7.250        6.500        $2,162.50    360
5017085               LIVERMORE                CA          94550          SFD         7.125        6.500        $2,007.69    360
5017088               LA CRESCENTA             CA          91214          SFD         7.250        6.500        $1,901.23    360
5017234               OAKLAND                  CA          94610          SFD         7.125        6.500        $2,091.22    360
5017251               LONG BEACH               CA          90803          SFD         7.000        6.500        $3,166.84    360
5017258               SAN RAMON                CA          94583          SFD         7.250        6.500        $1,991.96    360
5017271               HAYWARD                  CA          94544          SFD         7.375        6.500        $1,809.22    360
5017272               SANTA ROSA               CA          95404          SFD         6.750        6.483        $2,477.64    360
5017284               SAN JOSE                 CA          95132          SFD         6.875        6.500        $1,740.87    360
5017286               SAN FRANCISCO            CA          94114          SFD         7.125        6.500        $2,465.81    360
5017308               LOS ALTOS                CA          94024          SFD         7.250        6.500        $2,865.15    360
5017344               ALHAMBRA                 CA          91803          LCO         7.250        6.500         $682.18     360
5017413               LEE'S SUMMIT             MO          64063          SFD         6.875        6.500        $2,690.13    360
5017420               REDWOOD CITY             CA          94065          SFD         7.500        6.500        $3,296.80    360
5017451               GAINESVILLE              VA          20155          SFD         6.875        6.500        $3,613.11    360
5017513               SAN ANTONIO              TX          78257          SFD         7.000        6.500        $3,659.17    360
5017627               CUPERTINO                CA          95014          SFD         7.125        6.500        $2,231.04    240
5017647               PLEASANTON               CA          94588          SFD         7.250        6.500        $1,790.72    360
5017788               IRVINE                   CA          92714          PUD         7.250        6.500        $2,315.99    360
5017799               REDWOOD CITY             CA          94062          SFD         7.500        6.500        $2,408.80    360
5017829               LOVELAND                 OH          45140          SFD         7.125        6.500        $2,102.01    360
5017834               MOUNTAIN VIEW            CA          94040          SFD         7.250        6.500        $2,517.24    360
5017839               REDLANDS                 CA          92373          SFD         7.125        6.500        $1,967.26    360
5017849               SAN JOSE                 CA          95129          SFD         7.250        6.500        $1,944.21    360
5017875               LOS ALTOS                CA          94024          SFD         6.750        6.483        $3,178.14    360
5017890               WALNUT CREEK             CA          94598          SFD         6.875        6.500        $2,342.94    360
5017897               PALO ALTO                CA          94306          SFD         7.125        6.500        $3,348.39    360
5017908               SAN JOSE                 CA          95125          SFD         7.250        6.500        $1,910.10    360
5017935               RICHMOND                 CA          94803          SFD         7.375        6.500        $1,833.75    360
5017957               SAN RAMON                CA          94583          SFD         7.500        6.500        $2,531.16    360
5017970               YORBA LINDA              CA          92887          SFD         7.375        6.500        $2,196.35    360
5018004               SAN JOSE                 CA          95136          SFD         7.500        6.500        $2,167.57    360
5018021               STAMFORD                 CT          06902          SFD         6.750        6.483        $5,188.79    360
5018032               HUNTINGTON BEACH         CA          92648          SFD         7.500        6.500        $2,095.55    360
5018053               HAYWARD                  CA          94542          SFD         7.500        6.500        $1,852.92    360
5018085               GENEVA                   IL          60134          SFD         7.000        6.500        $1,736.44    360
5018112               LA CANADA FLINTRIDGE     CA          91011          SFD         7.500        6.500        $2,118.62    360
5018141               HONOLULU                 HI          96825          SFD         7.375        6.500        $3,591.52    360
5018148               SAN JOSE                 CA          95119          SFD         7.500        6.500        $1,966.55    360
5018160               SARATOGA                 CA          95070          SFD         7.250        6.500        $2,994.76    360
5018164               SANTA CLARA              CA          95051          SFD         7.250        6.500        $2,041.08    360
5018173               FREMONT                  CA          94536          SFD         7.250        6.500        $1,875.99    360
5018187               SAN RAFAEL               CA          94901          SFD         6.750        6.483        $1,822.57    360
5018210               RANCHO PALOS VERDES      CA          90275          SFD         7.375        6.500        $2,451.90    360
5018283               NAPLES                   FL          34108          HCO         7.250        6.500        $2,148.86    360
5018335               SUNNYVALE                CA          94087          SFD         7.250        6.500        $2,108.95    360
5018349               NORTHBROOK               IL          60062          SFD         7.250        6.500        $3,247.16    360
5018364               AGOURA                   CA          91301          SFD         7.125        6.500        $1,748.30    360
5018382               DANA POINT               CA          92629          SFD         6.500        6.233        $2,017.56    360
5018385               REDDING                  CA          96001          SFD         7.750        6.500        $2,149.24    360
5018403               REDDING                  CA          96001          SFD         7.125        6.500        $1,717.98    360
5018405               CORRALES                 NM          87048          SFD         7.250        6.500        $2,428.55    360
5018411               UNION TOWNSHIP           OH          45069          SFD         7.250        6.500        $1,921.01    360
5018433               ISLAMORADA               FL          33036          SFD         7.375        6.500        $2,451.90    360
5018450               SANTA BARBARA            CA          93103          SFD         7.000        6.500        $1,796.32    360
5018468               SAN FRANCISCO            CA          94116          SFD         6.625        6.358        $2,305.12    360
5018470               LA CANADA-FLINTRIDGE     CA          91011          SFD         7.500        6.500        $2,076.67    360
5018479               BALTIMORE                MD          21218          SFD         7.375        6.500        $3,038.97    360
5018509               CARSON                   CA          90745          SFD         7.375        6.500        $1,139.27    360
5018518               LIVERMORE                CA          94550          SFD         7.375        6.500        $1,519.49    360
5018590               SARATOGA                 CA          95070          SFD         7.375        6.500        $3,453.38    360
5018606               MENLO PARK               CA          94025          SFD         7.250        6.500        $1,794.13    360
5018621               DUBLIN                   CA          94568          SFD         7.250        6.500        $1,916.92    360
5018631               FALLS CHURCH             VA          22046          SFD         6.375        6.108        $1,696.62    360
5018634               LOS ALTOS                CA          94024          SFD         7.125        6.500        $4,379.18    360
5018636               GARDEN CITY              NY          11530          SFD         6.750        6.483        $1,816.08    360
5018682               POWAY                    CA          92064          SFD         7.375        6.500        $2,486.44    360
5018695               SAN CARLOS               CA          94070          SFD         7.000        6.500        $2,661.21    360
5018711               SAN DIEGO                CA          92129          SFD         7.125        6.500        $2,560.14    360
5018713               SAN JOSE                 CA          95125          SFD         7.125        6.500        $2,492.76    360
5018747               LOS ANGELES              CA          90024          SFD         6.625        6.358        $4,162.03    360
5018748               EASTON                   CT          06612          SFD         7.125        6.500        $3,179.96    360
5018789               LOS ALTOS                CA          94024          SFD         7.125        6.500        $4,109.69    360
5018794               SAN JOSE                 CA          95135          SFD         8.000        6.500        $2,348.05    360
5018798               RANCHO SANTA MARGARITA   CA          92688          SFD         7.250        6.500        $1,691.46    360
5018873               CUPERTINO                CA          95014          SFD         7.750        6.500        $4,656.68    360
5018885               SHORT HILLS              NJ          07078          SFD         6.750        6.483        $2,594.40    360
5018887               MOUNTAIN VIEW            CA          94041          SFD         6.750        6.483        $2,088.49    360
5018912               PORTLAND                 OR          97219          SFD         6.875        6.500        $1,751.71    360
5018915               MASSAPEQUA               NY          11758          SFD         7.250        6.500        $1,555.36    360
5018960               LAGUNA BEACH             CA          92651          SFD         7.000        6.500        $2,714.44    360
5019081               DALY CITY                CA          94015          SFD         7.000        6.500        $2,607.99    360
5019172               LA MESA                  CA          91941          SFD         7.250        6.500        $1,855.52    360
5019174               HIGHLAND PARK            TX          75205          SFD         6.750        6.483        $1,829.05    360
5019191               GWYNEDD VALLEY           PA          19437          SFD         7.375        6.500        $2,313.77    360
5019209               LIVERMORE                CA          94550          SFD         7.250        6.500        $1,800.95    360
5019243               FREMONT                  CA          94539          SFD         7.625        6.500        $3,078.91    360
5019263               LA JOLLA                 CA          92037          LCO         7.500        6.500        $1,999.76    360
5019278               LOS ANGELES              CA          90049          SFD         7.250        6.500        $3,090.26    360
5019295               NACOGDOCHES              TX          75964          SFD         6.875        6.500         $436.86     360
5019311               FARMINGTON HILLS         MI          48331          SFD         7.125        6.500        $2,453.01    360
5019320               LOS GATOS                CA          95032          SFD         7.125        6.500        $3,035.11    360
5019333               FOSTER CITY              CA          94404          SFD         7.250        6.500        $2,080.64    360
5019340               TENAFLY                  NJ          07670          SFD         7.250        6.500        $2,360.33    360
5019351               MORRISON                 CO          80465          SFD         7.500        6.500        $1,922.84    360
5019387               RIVER HILLS              WI          53217          SFD         6.875        6.500        $1,905.10    360
5019398               ST CHARLES               MO          63304          SFD         7.250        6.500        $2,046.53    360
5019420               SUNNYVALE                CA          94087          SFD         7.875        6.500        $2,233.22    360
5019466               SAN PEDRO                CA          90732          SFD         7.250        6.500        $1,896.46    360
5019479               WEST CHESTER             PA          19382          SFD         6.625        6.358        $1,869.71    360
5019483               LAGUNA HILLS             CA          92653          SFD         7.125        6.500        $2,189.59    360
5019528               SUNNYVALE                CA          94087          SFD         7.125        6.500        $1,785.36    360
5019553               DANA POINT               CA          92629          SFD         6.875        6.500        $1,702.76    360
5019586               WALNUT CREEK             CA          94596          SFD         6.875        6.500        $1,764.19    360
5019619               MISSION VIEJO            CA          92692          SFD         7.000        6.500        $1,869.51    360
5019620               ESCONDIDO                CA          92025          SFD         7.000        6.500        $2,262.03    360
5019639               SAN DIEGO                CA          92130          SFD         7.000        6.500        $2,980.56    360
5019648               SAN JOSE                 CA          95136          SFD         7.500        6.500        $1,762.03    360
5019649               LAGUNA NIGUEL            CA          92677          SFD         7.750        6.500        $7,156.96    360
5019669               LOS ALTOS                CA          94024          SFD         7.125        6.500        $3,368.60    360
5019677               LAFAYETTE                CA          94549          SFD         6.750        6.483        $2,983.56    360
5019679               KENTFIELD                CA          94904          SFD         7.250        6.500        $3,772.44    360
5019687               LOS GATOS                CA          95032          SFD         7.250        6.500        $2,264.83    360
5019706               COS COB                  CT          06807          SFD         7.125        6.500        $2,694.88    360
5019750               NEWARK                   CA          94560          SFD         7.500        6.500        $1,845.65    360
5019865               NEWPORT BEACH            CA          92657          LCO         7.500        6.500        $1,398.43    360
5019894               HOUSTON                  TX          77079          SFD         7.375        6.500        $2,004.69    360
5019938               MISSION VIEJO            CA          92692          SFD         7.000        6.500        $2,070.43    360
5019947               BRONX                    NY          10463          SFD         7.375        6.500        $2,348.30    360
5019957               SUNNYVALE                CA          94086          SFD         7.250        6.500        $1,807.77    360
5019964               DALLAS                   TX          75225          SFD         6.750        6.483        $2,853.84    360
5020064               FOSTER CITY              CA          94404          LCO         6.875        6.500        $2,029.92    360
5020099               FULLERTON                CA          92832          SFD         7.125        6.500        $2,694.88    360
5020105               LAWRENCEVILLE            GA          30043          SFD         6.875        6.500        $1,836.12    360
5020122               LA CANADA FLINTRIDGE     CA          91011          SFD         7.000        6.500        $2,328.56    360
5020174               SUNNYVALE                CA          94086          SFD         7.375        6.500        $1,961.52    360
5020241               CALABASAS                CA          91302          SFD         7.500        6.500        $1,748.04    360
5020263               TIBURON                  CA          94920          SFD         7.125        6.500        $2,755.85    360
5020280               GLENCOE                  IL          60022          SFD         7.125        6.500        $5,726.61    360
5020308               MOUNTAIN VIEW            CA          94043          SFD         7.125        6.500        $2,149.17    360
5020311               WATSONVILLE              CA          95076          SFD         6.500        6.233        $2,224.88    360
5020373               POTOMAC                  MD          20854          SFD         6.750        6.483        $2,270.10    360
5020455               COOPER CITY              FL          33026          SFD         7.250        6.500        $1,828.24    360
5020513               SAN RAMON                CA          94583          SFD         6.500        6.233        $1,946.77    360
5020528               NEWPORT BEACH            CA          92660          SFD         6.875        6.500        $2,443.78    360
5020549               MORGAN HILL              CA          95037          SFD         7.125        6.500        $2,411.91    360
5020592               KATONAH                  NY          10536          SFD         6.750        6.483        $1,945.80    360
5020596               BELLEVIEW                WA          98006          SFD         7.625        6.500        $1,154.41    360
5020622               NAPLES                   FL          34109          SFD         7.000        6.500        $1,829.58    360
5020658               MORGAN HILL              CA          95037          SFD         6.625        6.358        $3,142.65    360
5020692               SAN RAMON                CA          94583          SFD         7.000        6.500        $1,712.49    360
5020707               GLENDALE                 CA          91206          SFD         7.125        6.500        $2,277.17    360
5020809               KATONAH                  NY          10536          SFD         7.125        6.500        $3,031.74    360
5020842               SUPERIOR                 CO          80027          SFD         7.000        6.500        $1,873.82    360
5020879               MERIDIAN                 ID          83642          SFD         7.000        6.500        $3,108.29    360
5020880               WEST CHESTER             PA          19382          SFD         6.500        6.233        $2,002.40    360
5020926               FREMONT                  CA          94536          SFD         7.125        6.500        $2,649.74    360
5020927               SUNNYVALE                CA          94087          SFD         7.250        6.500        $2,360.33    360
5020963               FREMONT                  CA          94536          SFD         7.375        6.500        $2,002.96    360
5021029               ORINDA                   CA          94563          SFD         6.625        6.358        $3,457.68    360
5021053               PIEDMONT                 CA          94611          SFD         7.000        6.500        $3,659.17    360
5021060               SAN JOSE                 CA          95129          SFD         8.000        6.500        $2,678.25    360
5021067               YORBA LINDA              CA          92887          SFD         7.250        6.500        $2,043.12    360
5021070               SAN JOSE                 CA          95128          SFD         7.250        6.500        $2,101.11    360
5021091               LOS GATOS                CA          95032          SFD         7.250        6.500        $2,148.86    360
5021154               SANTA BARBARA            CA          93105          SFD         6.500        6.233        $1,776.12    360
5021163               FRANKLIN LAKES           NJ          07417          SFD         7.000        6.500        $2,807.58    360
5021193               SARATOGA                 CA          95070          SFD         7.000        6.500        $3,665.82    360
5021236               MOUNTAIN VIEW            CA          94043          SFD         8.000        6.500        $3,287.27    360
5021268               SAN JOSE                 CA          95129          SFD         8.125        6.500        $2,747.24    360
5021269               REDWOOD CITY             CA          94062          SFD         7.500        6.500        $5,653.15    360
5021287               SAN JOSE                 CA          95135          SFD         7.250        6.500        $2,217.08    360
5021292               NOBLESVILLE              IN          46060          SFD         7.500        6.500        $3,670.88    360
5021323               FOSTER CITY              CA          94404          SFD         7.250        6.500        $1,760.02    360
5021342               CUPERTINO                CA          95014          SFD         7.000        6.500        $3,281.94    360
5021398               COMMACK                  NY          11725          SFD         7.125        6.500        $2,003.31    360
5021404               SAN FRANCISCO            CA          94112          SFD         7.125        6.500        $1,915.39    360
5021411               SAN FRANCISCO            CA          94116          SFD         6.875        6.500        $2,430.64    360
5021418               FAIRFIELD                CT          06430          SFD         6.875        6.500        $2,460.53    360
5021422               TOPANGA                  CA          90290          SFD         7.125        6.500        $3,287.75    360
5021455               PORT WASHINGTON          NY          11050          SFD         7.125        6.500        $1,792.09    360
5021460               MANHATTAN BEACH          CA          90266          SFD         6.875        6.500        $3,284.65    360
5021463               DALLAS                   TX          75225          SFD         6.875        6.500        $3,278.07    360
5021485               LAKE GROVE               NY          11755          SFD         7.125        6.500        $2,225.63    360
5021496               CUPERTINO                CA          95014          SFD         7.500        6.500        $1,887.88    360
5021513               DOUGLASTON               NY          11362          SFD         7.000        6.500        $1,397.14    360
5021545               NEW YORK                 NY          10023          HCO         7.250        6.500        $2,442.19    360
5021573               STUDIO CITY              CA          91604          SFD         7.000        6.500        $2,123.65    360
5021575               YORBA LINDA              CA          92886          SFD         7.125        6.500        $2,414.61    360
5021584               LOS ANGELES              CA          90210          SFD         7.000        6.500        $6,653.03    360
5021585               SEATTLE                  WA          98105          SFD         7.000        6.500        $1,820.93    360
5021586               SAN FRANCISCO            CA          94112          SFD         6.875        6.500        $1,478.09    360
5021632               WALNUT CREEK             CA          94595          SFD         7.500        6.500        $3,744.30    360
5021673               SAN JOSE                 CA          95129          SFD         8.000        6.500        $2,326.04    360
5021679               MOUNT KISCO              NY          10549          SFD         7.250        6.500        $2,395.81    360
5021680               MARLBORO                 NJ          07751          SFD         6.625        6.358        $2,273.11    360
5021701               LOS ALTOS                CA          94022          SFD         7.000        6.500        $3,113.62    360
5021703               ESSEX FELLS              NJ          07021          SFD         6.625        6.358        $1,760.86    360
5021713               NEWTOWN                  CT          06470          SFD         7.125        6.500        $2,223.27    360
5021721               MINEOLA                  NY          11501          SFD         7.750        6.500        $1,783.87    360
5021811               BOCA RATON               FL          33498          SFD         7.375        6.500        $3,172.00    360
5021817               FREMONT                  CA          94539          SFD         7.125        6.500        $2,492.76    360
5021835               TORRANCE                 CA          90505          SFD         7.500        6.500        $2,198.34    360
5021905               MILL VALLEY              CA          94941          SFD         7.750        6.500        $2,915.80    360
5021913               HARTSDALE                NY          10530          SFD         6.875        6.500        $2,044.37    360
5021929               SAN MATEO                CA          94402          SFD         6.875        6.500        $3,823.33    360
5021930               CLIFTON                  VA          20124          SFD         6.500        6.233        $3,033.93    360
5022030               PALM SPRINGS             CA          92264          LCO         7.125        6.500         $504.62     360
5022035               REDWOOD CITY             CA          94062          SFD         7.125        6.500        $1,864.18    360
5022040               LOS ANGELES              CA          90046          SFD         7.375        6.500        $2,175.63    360
5022054               LOS ANGELES              CA          90025          LCO         7.500        6.500        $1,925.64    360
5022078               UPPER MARLBORO           MD          20772          SFD         7.250        6.500        $2,522.01    360
5022085               HOLLYWOOD                CA          90069          SFD         7.125        6.500        $2,425.39    360
5022109               ENGLEWOOD                CO          80111          SFD         7.000        6.500        $2,580.05    360
5022156               STONY BROOK              NY          11790          SFD         6.625        6.358        $2,049.00    360
5022158               SAN JOSE                 CA          95135          SFD         7.125        6.500        $2,459.08    360
5022177               TAHOE CITY               CA          96145          SFD         7.375        6.500        $2,590.04    360
5022347               YORBA LINDA              CA          92886          PUD         7.125        6.500        $3,068.79    360
5022363               GAITHERSBURG             MD          20878          SFD         7.000        6.500        $3,595.96    360
5022367               SAN JOSE                 CA          95125          SFD         7.500        6.500        $2,657.02    360
5022379               RAMSEY                   NJ          07446          SFD         7.250        6.500        $1,910.10    360
5022399               PALO ALTO                CA          94303          SFD         7.125        6.500        $3,705.46    360
5022412               EAST HAMPTON             NY          11937          SFD         7.000        6.500        $2,827.54    360
5022427               OXNARD                   CA          93035          SFD         7.000        6.500        $2,639.93    360
5022459               SAN JOSE                 CA          95120          SFD         7.125        6.500        $1,761.78    360
5022520               ANNANDALE                VA          22003          SFD         7.500        6.500        $1,766.92    360
5022535               SAN JOSE                 CA          95135          SFD         7.125        6.500        $2,358.02    360
5022542               CORONADO                 CA          92118          SFD         6.875        6.500        $2,174.44    360
5022544               OAKLAND                  CA          94618          SFD         7.125        6.500        $1,785.36    360
5022568               COTO DE CAZA             CA          92679          SFD         7.125        6.500        $1,741.57    360
5022602               SANTA CRUZ               CA          95060          SFD         7.250        6.500        $2,217.08    360
5022626               MOUNTAIN VIEW            CA          94040          SFD         7.250        6.500        $3,820.19    360
5022894               NOVATO                   CA          94947          SFD         7.000        6.500        $3,825.49    360
5022929               ALAMO                    CA          94507          SFD         7.000        6.500        $3,315.87    360
5022946               FAIRFAX                  VA          22030          SFD         7.500        6.500        $2,234.00    360
5022956               HUNTINGTON BEACH         CA          92648          PUD         7.125        6.500        $2,236.75    360
5023043               GOLDEN VALLEY            MN          55425          SFD         7.125        6.500        $2,021.16    360
5023131               ENGLEWOOD CLIFFS         NJ          07632          SFD         7.250        6.500        $2,046.53    360
5023142               SAN FRANCISCO            CA          94122          SFD         7.250        6.500        $2,728.71    360
5023143               FREMONT                  CA          94539          SFD         7.375        6.500        $3,590.82    360
5023172               REDWOOD CITY             CA          94062          SFD         7.250        6.500        $2,217.07    360
5023174               LA MIRADA                CA          90638          SFD         7.250        6.500        $1,852.11    360
5023211               COS COB GREENWICH        CT          06807          SFD         7.000        6.500        $3,757.63    360
5023239               WEST  HILLS              CA          91304          SFD         7.250        6.500        $2,626.38    360
5023256               MANHATTAN BEACH          CA          90266          LCO         7.000        6.500        $3,013.82    360
5023294               SHARON                   MA          02067          SFD         6.750        6.483        $2,338.20    360
5023324               CLAYTON                  CA          94517          SFD         7.750        6.500        $2,206.55    360
5023382               MARLBORO                 NJ          07746          SFD         7.250        6.500        $2,012.43    360
5023384               GLEN HEAD                NY          11545          SFD         7.125        6.500        $1,347.44    360
5023435               LOS ANGELES              CA          90005          SFD         7.250        6.500        $3,445.00    360
5023462               SAN JOSE                 CA          95135          SFD         7.250        6.500        $2,728.71    360
5023470               LAGUNA NIGUEL            CA          92677          SFD         7.625        6.500        $3,815.01    360
5023512               LAGUNA NIGUEL            CA          92677          SFD         7.875        6.500        $2,124.46    360
5023602               MOUNTAIN VIEW            CA          94040          SFD         7.250        6.500        $1,760.02    360
5023622               LEES SUMMIT              MO          64064          SFD         7.125        6.500        $2,054.85    360
5023623               ALAMO                    CA          94507          SFD         7.125        6.500        $3,328.17    360
5023626               ANNAPOLIS                MD          21403          SFD         7.250        6.500        $4,297.72    360
5023641               SARATOGA                 CA          95070          SFD         7.375        6.500        $2,707.45    360
5023649               MILPITAS                 CA          95035          SFD         8.125        6.500        $2,116.12    360
5023849               READING                  MA          01867          SFD         6.875        6.500        $2,115.31    360
5023897               SAN FRANCISCO            CA          94109          HCO         7.375        6.500        $3,108.04    360
5023997               EL CERRITO               CA          94530          SFD         7.875        6.500        $1,990.68    360
5024015               AURORA                   CO          80016          SFD         7.000        6.500        $2,911.36    360
5024068               SAN FRANCISCO            CA          94100          LCO         7.250        6.500        $2,597.73    360
5024069               PACIFIC PALISADES        CA          90272          SFD         7.375        6.500        $2,279.23    360
5024140               OAKLAND                  CA          94602          SFD         6.750        6.483        $1,705.82    360
5024147               SAN FRANCISCO            CA          94127          SFD         7.000        6.500        $2,361.83    360
5024173               LONG BEACH               CA          90803          SFD         7.000        6.500        $3,265.32    300
5024186               POUGHQUAG                NY          12570          SFD         7.375        6.500        $1,796.45    360
5024252               UNIVERSITY PARK          TX          75225          SFD         7.000        6.500        $2,145.61    360
5024272               PLEASANTON               CA          94566          SFD         6.875        6.500        $4,171.50    360
5024280               LAFAYETTE                CA          94549          SFD         7.500        6.500        $2,272.17    360
5024384               PALO ALTO                CA          94303          SFD         7.125        6.500        $4,163.58    360
5024392               LONG VALLEY              NJ          07853          SFD         7.125        6.500        $1,717.99    360
5024433               COMMACK                  NY          11725          SFD         7.000        6.500        $1,809.63    360
5024531               ARLINGTON                TX          76016          SFD         7.125        6.500        $3,656.27    360
5024640               HOUSTON                  TX          77055          SFD         7.125        6.500        $1,805.57    360
5024643               LONG BEACH               CA          90814          LCO         7.375        6.500        $1,878.64    360
5024644               CAMBRIDGE                MA          02138          SFD         7.125        6.500        $3,031.74    360
5024671               MORAGA                   CA          94556          SFD         7.250        6.500        $2,824.21    360
5024679               SUNNYVALE                CA          94087          SFD         7.250        6.500        $1,828.24    360
5024702               SAN RAMON                CA          94583          SFD         7.500        6.500        $1,877.40    360
5024705               POUND RIDGE              NY          10576          SFD         6.875        6.500        $2,936.48    360
5024867               HUNTINGTON BEACH         CA          92646          SFD         7.250        6.500        $2,032.89    360
5024905               GRANADA HILLS AREA  L    CA          91344          SFD         7.000        6.500        $3,632.56    360
5024971               SAN BRUNO                CA          94066          SFD         7.375        6.500        $1,900.74    360
5024993               NAPLES                   FL          34109          SFD         7.250        6.500        $3,192.58    360
5025007               MARCO ISLAND             FL          34145          SFD         6.750        6.483        $3,210.57    360
5025026               STONE HARBOR             NJ          08247          SFD         7.250        6.500        $4,030.98    360
5025027               SUNNYVALE                CA          94087          SFD         7.875        6.500        $3,045.30    360
5025037               SAN JOSE                 CA          95135          SFD         7.250        6.500        $2,949.05    360
5025066               SEATTLE                  WA          98166          SFD         7.875        6.500        $3,915.37    360
5025143               SOUTHOLD                 NY          11971          SFD         7.250        6.500        $1,910.10    360
5025211               FOSTER CITY              CA          94404          SFD         7.625        6.500        $2,176.47    360
5025243               CHATSWORTH               CA          91311          SFD         7.500        6.500        $2,922.72    360
5025282               FREMONT                  CA          94555          SFD         8.125        6.500        $2,264.62    360
5025287               SAN FRANCISCO            CA          94131          SFD         7.375        6.500        $1,726.69    360
5025329               HUNTINGTON BEACH         CA          92646          PUD         7.000        6.500        $2,914.03    360
5025365               SEATTLE                  WA          98103          SFD         6.875        6.500        $1,744.15    360
5025370               UNION CITY               CA          94587          SFD         7.375        6.500        $2,030.59    360
5025393               CHESTER SPRINGS          PA          19425          SFD         7.250        6.500        $2,431.96    360
5025400               MANDEVILLE               LA          70471          SFD         7.250        6.500        $1,760.02    360
5025542               SAN DIEGO                CA          92131          SFD         7.375        6.500        $1,820.62    360
5025559               BOSTON                   MA          02118          MF2         6.750        6.483        $3,243.00    360
5025595               MOUNTAIN VIEW            CA          94041          SFD         7.250        6.500        $2,336.46    360
5025606               DALLAS                   TX          75230          SFD         7.500        6.500        $2,125.62    360
5025800               SAN JOSE                 CA          95138          SFD         8.000        6.500        $4,035.71    360
5025823               DANVILLE                 CA          94526          SFD         7.250        6.500        $1,935.34    360
5025826               PLEASANTON               CA          94588          SFD         7.000        6.500        $1,955.99    360
5025830               ALAMO                    CA          94507          SFD         6.875        6.500        $3,251.80    360
5025848               SUPERIOR                 CO          80027          SFD         7.125        6.500        $2,021.16    360
5025852               WALNUT CREEK             CA          94598          SFD         7.250        6.500        $2,401.27    360
5025873               ENCINO                   CA          91316          SFD         6.750        6.483        $2,464.68    360
5025890               SUNNYVALE                CA          94087          SFD         8.125        6.500        $2,769.52    360
5025902               LITTLETON                CO          80121          SFD         6.875        6.500        $2,562.03    360
5025906               RANCHO PALOS VERDE       CA          90275          SFD         7.250        6.500        $2,680.96    360
5025921               MORGAN HILL              CA          95037          SFD         7.250        6.500        $3,451.82    360
5025924               FINKSBURG                MD          21048          SFD         6.875        6.500        $2,068.67    360
5025953               LOS ANGELES              CA          90066          SFD         7.000        6.500        $2,987.21    360
5025971               PLEASANTON               CA          94566          SFD         7.375        6.500        $1,933.90    360
5025987               WOODSIDE                 CA          94062          SFD         7.375        6.500        $1,913.18    360
5026005               SPRINGFIELD              VA          22151          SFD         7.125        6.500        $1,885.74    360
5026071               FORT WORTH               TX          76107          SFD         7.125        6.500        $2,155.90    360
5026079               LEANDER                  TX          78641          SFD         6.875        6.500        $2,463.16    360
5026184               DIX HILLS                NY          11746          SFD         7.125        6.500        $2,425.39    360
5026194               SAN JOSE                 CA          95135          SFD         7.125        6.500        $3,099.11    360
5026292               SUNNYVALE                CA          94086          SFD         7.500        6.500        $2,155.68    360
5026319               ROSLYN HEIGHTS           NY          11577          LCO         7.000        6.500        $2,448.32    360
5026329               LA CANADA FLINTRIDGE     CA          91011          SFD         7.250        6.500        $2,837.86    360
5026352               ALAMEDA                  CA          94501          SFD         7.250        6.500        $2,032.89    360
5026369               PALO ALTO                CA          94306          SFD         6.875        6.500        $2,102.18    360
5026375               REDONDO BEACH            CA          90277          SFD         7.000        6.500        $3,991.82    360
5026415               SAN JOSE                 CA          95131          SFD         7.250        6.500        $2,155.68    360
5026437               EL CAJON                 CA          92019          SFD         6.750        6.483        $1,783.65    360
5026517               SAN JOSE                 CA          95130          SFD         7.375        6.500        $2,293.74    360
5026571               OAK BROOK                IL          60521          SFD         7.000        6.500        $2,361.83    360
5026574               DULUTH                   GA          30097          SFD         7.125        6.500        $4,176.39    360
5026586               PALMDALE                 CA          93551          SFD         7.250        6.500        $1,739.55    360
5026587               SUNNYVALE                CA          94086          SFD         7.750        6.500        $2,149.24    360
5026623               DEL MAR                  CA          92014          SFD         7.000        6.500        $6,356.97    360
5026653               SAN JOSE                 CA          95120          SFD         7.250        6.500        $2,592.27    360
5026687               SAN JOSE                 CA          95129          SFD         7.250        6.500        $2,394.44    360
5026703               SAN JOSE                 CA          95129          SFD         7.125        6.500        $2,425.39    360
5026706               LOS ALTOS                CA          94024          SFD         7.250        6.500        $4,297.71    360
5026708               LOS GATOS                CA          95032          SFD         7.250        6.500        $1,773.66    360
5026728               MILLBRAE                 CA          94030          SFD         7.250        6.500        $2,190.47    360
5026729               DALLAS                   TX          75225          SFD         6.875        6.500        $1,970.79    360
5026730               ANAHEIM                  CA          92808          PUD         7.250        6.500        $2,459.25    360
5026734               OVILLA                   TX          75154          SFD         6.625        6.358        $1,767.26    360
5026739               PALO ALTO                CA          94303          SFD         7.250        6.500        $3,479.10    360
5026800               FOSTER CITY              CA          94404          SFD         7.250        6.500        $1,910.10    360
5026823               BONITA SPRINGS           FL          34134          SFD         7.000        6.500        $1,995.91    360
5026853               BOERNE                   TX          78006          SFD         7.000        6.500        $2,168.89    360
5026870               PELL CITY                AL          35128          SFD         7.000        6.500        $2,488.24    360
5026949               SANTA MONICA             CA          90405          LCO         7.000        6.500        $1,946.01    360
5026996               YORBA LINDA              CA          92886          SFD         7.500        6.500        $1,859.57    360
5027007               DARIEN                   CT          06820          SFD         7.125        6.500        $5,551.45    360
5027078               VIRGINIA BEACH           VA          23456          SFD         7.750        6.500        $1,038.80    360
5027091               AURORA                   CO          80016          SFD         7.000        6.500        $2,744.38    360
5027103               HOUSTON                  TX          77024          SFD         7.125        6.500        $2,290.65    360
5027119               BUMPASS                  VA          23024          SFD         7.500        6.500        $2,237.49    360
5027156               FREMONT                  CA          94539          SFD         7.125        6.500        $2,560.14    360
5027159               MISSION VIEJO            CA          92692          SFD         7.375        6.500        $2,817.96    360
5027217               DEL MAR                  CA          92014          SFD         7.125        6.500        $2,863.31    360
5027237               EAST MORICHES            NY          11940          SFD         7.125        6.500        $2,021.16    360
5027266               SAN JOSE                 CA          95131          SFD         8.125        6.500        $2,004.75    360
5027270               LEAWOOD                  KS          66211          SFD         7.000        6.500        $4,304.51    360
5027275               FREMONT                  CA          94539          SFD         7.875        6.500        $3,248.32    360
5027279               LOS ANGELES              CA          90046          SFD         6.875        6.500        $2,117.94    360
5027314               HALF MOON BAY            CA          94019          SFD         7.000        6.500        $1,729.79    360
5027343               SANTA BARBARA            CA          93103          SFD         6.875        6.500        $2,121.89    360
5027361               VENICE                   CA          90291          SFD         7.250        6.500        $1,872.58    360
5027413               GOLETA                   CA          93117          SFD         7.500        6.500        $1,859.92    360
5027414               CONCORD                  CA          94521          SFD         7.500        6.500        $2,013.74    360
5027506               SOUTHAMPTON              NY          11968          SFD         7.250        6.500        $1,773.66    360
5027593               SAN ANTONIO              TX          78212          SFD         7.000        6.500        $2,315.26    360
5027788               LOS ALTOS                CA          94022          SFD         6.875        6.500        $4,138.66    360
5027869               ALAMO                    CA          94507          SFD         7.125        6.500        $3,496.60    360
5027884               NEW YORK                 NY          10022          MF2         7.875        6.500        $5,655.55    360
5027888               DANVILLE                 CA          94506          SFD         7.125        6.500        $3,078.90    360
5027938               OAKLAND                  CA          94618          SFD         7.125        6.500        $2,344.55    360
5027972               PORTOLA VALLEY           CA          94028          SFD         7.250        6.500        $2,728.71    360
5027973               MILL VALLEY              CA          94941          SFD         7.375        6.500        $1,878.64    360
5027986               POWAY                    CA          92064          SFD         6.875        6.500        $1,970.79    360
5028104               MANHATTAN BEACH          CA          90266          SFD         7.250        6.500        $4,424.60    360
5028158               SUWANEE                  GA          30024          SFD         7.500        6.500        $2,097.65    360
5028204               FREMONT                  CA          94539          SFD         7.125        6.500        $2,526.45    360
5028352               MILL VALLEY              CA          94941          SFD         7.500        6.500        $2,525.54    240
5028423               SAN JOSE                 CA          95119          SFD         7.125        6.500        $1,999.60    360
5028458               POTOMAC                  MD          20854          SFD         7.375        6.500        $2,445.00    360
5028479               MARYSVILLE               WA          98271          SFD         6.875        6.500        $2,764.03    360
5028630               BOCA RATON               FL          33486          SFD         7.125        6.500        $1,697.78    360
5028635               BELMONT                  CA          94002          SFD         7.500        6.500        $3,566.00    360
5028654               SAN ANTONIO              TX          78258          SFD         7.000        6.500        $1,962.65    360
5028685               GREENBRAE                CA          94904          SFD         7.000        6.500        $3,077.03    360
5028708               HOUSTON                  TX          77096          SFD         7.000        6.500        $1,676.57    360
5028711               WALNUT CREEK             CA          94596          SFD         7.375        6.500        $2,072.03    360
5028764               SAN JOSE                 CA          95125          SFD         7.250        6.500        $1,855.52    360
5028836               MILPITAS                 CA          95035          SFD         7.375        6.500        $2,158.36    360
5028922               BEVERLY HILLS            CA          90211          LCO         7.375        6.500        $3,453.38    360
5029073               SUNNYVALE                CA          94087          SFD         6.875        6.500        $1,905.10    360
5029091               CUPERTINO                CA          95014          SFD         8.125        6.500        $2,598.75    360
5029107               FREMONT                  CA          94539          SFD         7.375        6.500        $2,210.17    360
5029133               FREMONT                  CA          94539          SFD         8.125        6.500        $3,920.39    360
5029268               GREAT NECK               NY          11021          SFD         7.500        6.500        $2,076.67    360
5029284               PALO ALTO                CA          94306          SFD         8.000        6.500        $3,364.32    360
5029301               MESA                     AZ          85207          SFD         7.500        6.500        $1,887.88    360
5029305               CAMANO ISLAND            WA          98292          SFD         7.125        6.500        $2,467.16    360
5029329               IRVINE                   CA          92606          SFD         7.000        6.500        $2,021.85    360
5029341               SANIBEL                  FL          33957          LCO         7.375        6.500        $2,106.56    360
5029354               SARATOGA                 CA          95070          SFD         7.125        6.500        $2,694.87    360
5029361               OCEANSIDE                CA          92057          SFD         7.000        6.500        $1,689.87    360
5029366               NAPERVILLE               IL          60540          SFD         7.500        6.500        $1,887.88    360
5029374               MURPHYS                  CA          95247          SFD         7.375        6.500        $2,762.70    360
5029385               MONTEREY PARK            CA          91754          SFD         7.000        6.500        $1,784.34    360
5029419               SOUTH SAN FRANCISCO      CA          94080          SFD         7.000        6.500        $2,894.07    360
5029433               LOS ANGELES              CA          90732          SFD         7.250        6.500        $2,715.06    360
5029474               ALAMO                    CA          94507          SFD         7.125        6.500        $2,856.57    360
5029481               SARATOGA                 CA          95070          SFD         7.375        6.500        $2,672.92    360
5029552               AUSTIN                   TX          78759          SFD         7.500        6.500        $2,070.38    360
5029625               MANHATTAN BEACH          CA          90266          SFD         7.500        6.500        $1,922.84    360
5029746               CUPERTINO                CA          95014          SFD         7.375        6.500        $2,555.50    360
5029761               SAN JOSE                 CA          95120          SFD         6.750        6.483        $2,140.38    360
5029805               GAMBRILLS                MD          21054          SFD         7.500        6.500        $1,650.15    360
5029950               DURANGO                  CO          81301          SFD         7.375        6.500        $2,082.39    360
5030131               SAN ANSELMO              CA          94960          SFD         7.125        6.500        $3,301.23    360
5030190               SAN RAMON                CA          94583          SFD         7.375        6.500        $2,862.16    360
5030208               SAN JOSE                 CA          95123          SFD         8.000        6.500        $2,707.60    360
5030254               LOS ANGELES              CA          90036          SFD         7.375        6.500        $2,102.42    360
5030269               SAN FRANCISCO            CA          94115          LCO         7.125        6.500        $3,321.44    360
5030274               TULSA                    OK          74136          SFD         7.500        6.500        $2,517.18    360
5030275               LOS GATOS                CA          95032          SFD         6.750        6.483        $2,727.36    360
5030299               GIG HARBOR               WA          98335          SFD         7.500        6.500        $2,517.18    360
5030300               PASADENA                 CA          91106          SFD         7.250        6.500        $1,731.37    360
5030320               CASTRO VALLEY            CA          94552          SFD         6.750        6.483        $1,718.79    360
5030334               LONGWOOD                 FL          32750          SFD         7.000        6.500        $1,756.40    360
5030344               DANA POINT               CA          92629          SFD         7.000        6.500        $1,975.95    360
5030370               RIVERSIDE AREA           CA          92562          SFD         7.250        6.500        $2,121.57    360
5030379               PETALUMA                 CA          94952          SFD         6.875        6.500        $2,575.17    360
5030385               SAN DIEGO                CA          92121          SFD         7.250        6.500        $1,835.06    360
5030417               BELLEVUE                 WA          98006          SFD         7.250        6.500        $1,705.45    360
5030425               DEL MAR                  CA          92014          SFD         6.750        6.483        $2,594.39    360
5030436               LOS ANGELES              CA          90045          SFD         8.000        6.500        $3,727.53    360
5030438               LOS ANGELES  NORTHRID    CA          91326          SFD         7.250        6.500        $1,925.11    360
5030469               CALABASAS                CA          91302          SFD         7.375        6.500        $3,142.58    360
5030479               NEW ROCHELLE             NY          10801          SFD         7.375        6.500        $1,579.92    360
5030496               DANA POINT               CA          92629          SFD         7.125        6.500        $2,358.02    360
5030519               LAGUNA BEACH             CA          92651          SFD         7.250        6.500        $3,521.74    360
5030522               SACRAMENTO               CA          95819          SFD         7.375        6.500        $2,175.63    360
5030541               SANTA ANA AREA  ORANG    CA          92705          SFD         7.250        6.500        $1,910.10    360
5030547               NORTH ANDOVER            MA          01845          SFD         6.625        6.358        $1,741.65    360
5030554               NOVATO                   CA          94947          SFD         7.250        6.500        $2,496.77    360
5030559               CALABASAS                CA          91302          SFD         7.000        6.500        $2,907.38    360
5030581               SAUSALITO                CA          94965          SFD         7.625        6.500        $2,906.21    360
5030647               MURRIETA                 CA          92562          SFD         7.375        6.500        $2,094.13    360
5030688               SUNSET HILLS             MO          63128          SFD         7.250        6.500        $2,387.62    360
5030719               CUPERTINO                CA          95014          SFD         7.500        6.500        $2,517.18    360
5030754               SANTA BARBARA            CA          93105          SFD         7.125        6.500        $2,021.16    360
5030795               ALAMO                    CA          94507          SFD         7.375        6.500        $3,453.38    360
5030802               MILL VALLEY              CA          94941          SFD         7.250        6.500        $3,013.18    360
5030955               SAN JOSE                 CA          95120          SFD         7.875        6.500        $2,385.48    360
5031026               STAMFORD                 CT          06905          SFD         7.500        6.500        $1,811.66    360
5031106               MILLBRAE                 CA          94030          SFD         7.375        6.500        $2,296.50    360
5031200               PASADENA                 CA          91107          SFD         7.375        6.500        $1,935.62    360
5031291               SANTA BARBARA            CA          93110          SFD         7.000        6.500        $1,949.34    360
5031293               SOLVANG                  CA          93463          SFD         7.375        6.500        $2,679.82    360
5031309               CHINO HILLS              CA          91709          SFD         6.375        6.108        $3,493.68    360
5031312               PACIFIC PALISADES ARE    CA          90272          SFD         7.000        6.500        $2,632.61    360
5031327               LAS FLORES AREA          CA          92688          SFD         7.500        6.500        $1,748.04    360
5031343               SAN MATEO                CA          94402          SFD         7.250        6.500        $2,329.64    360
5031345               BUCKLEY                  WA          98321          SFD         6.875        6.500        $1,852.54    360
5031382               FOSTER CITY              CA          94404          SFD         7.000        6.500        $2,215.46    360
5031401               SARATOGA                 CA          95070          SFD         7.125        6.500        $3,368.60    360
5031402               OAKLAND                  CA          94618          SFD         6.875        6.500        $3,153.26    360
5031408               VIRGINIA BEACH           VA          23454          SFD         6.750        6.483        $1,660.42    360
5031465               SEATTLE                  WA          98166          SFD         7.250        6.500        $2,348.40    360
5031472               CLEARWATER               FL          34615          SFD         7.500        6.500        $3,496.08    360
5031475               BARRINGTON               IL          60010          LCO         7.500        6.500        $1,957.80    360
5031523               GRESHAM                  OR          97030          SFD         7.250        6.500        $1,882.81    360
5031531               LONG BEACH               CA          90803          SFD         7.250        6.500        $3,080.71    360
5031560               DOYLESTOWN               PA          18901          SFD         6.375        6.108        $2,146.11    360
5031586               SAN JOSE                 CA          95120          SFD         7.125        6.500        $2,630.20    360
5031602               SUNNYVALE                CA          94087          SFD         6.625        6.358        $2,786.64    360
5031619               NEW ROCHELLE             NY          10804          SFD         7.375        6.500        $2,417.37    360
5031621               ORLANDO                  FL          32836          SFD         7.000        6.500        $2,228.77    360
5031628               LEXINGTON                MA          02420          SFD         7.375        6.500        $2,141.10    360
5031651               HUMMELSTOWN              PA          17036          SFD         6.750        6.483        $1,910.12    360
5031684               KIRKWOOD                 MO          63122          SFD         7.000        6.500        $1,995.91    360
5031750               NORTH SALT LAKE          UT          84054          SFD         7.000        6.500        $1,842.89    360
5031882               SANTA CLARA              CA          95051          SFD         7.125        6.500        $1,872.94    360
5031956               WALNUT CREEK             CA          94598          SFD         6.500        6.233        $2,386.69    360
5031979               SANTA CRUZ               CA          95060          SFD         6.875        6.500        $2,102.18    360
5032050               APTOS                    CA          95003          SFD         7.250        6.500        $2,114.75    360
5032095               MILPITAS                 CA          95035          SFD         8.125        6.500        $2,116.12    360
5032096               SAN JOSE                 CA          95135          SFD         8.125        6.500        $2,828.92    360
5032100               CASTRO VALLEY            CA          94552          SFD         7.375        6.500        $2,624.57    360
5032269               DIAMOND BAR              CA          91765          SFD         7.000        6.500        $2,388.44    360
5032280               COLORADO SPRINGS         CO          80919          SFD         7.000        6.500        $1,949.34    360
5032282               SEATTLE                  WA          98115          SFD         6.750        6.483        $1,816.08    360
5032301               SEATTLE                  WA          98112          SFD         6.875        6.500        $2,759.11    360
5032311               PORTLAND                 OR          97229          SFD         7.000        6.500        $2,042.48    360
5032319               ATLANTA                  GA          30342          SFD         7.000        6.500        $2,508.19    360
5032322               CUPERTINO                CA          95014          SFD         7.500        6.500        $2,447.26    360
5032338               SANTA ROSA               CA          95409          SFD         7.125        6.500        $3,590.92    360
5032347               SAN PEDRO                CA          90731          SFD         7.375        6.500        $2,175.63    360
5032350               MASON                    OH          45040          SFD         7.500        6.500        $1,970.74    360
5032372               SACRAMENTO               CA          95818          SFD         7.125        6.500        $1,934.92    360
5032383               SANTA ROSA               CA          95404          SFD         7.125        6.500        $3,402.28    360
5032410               SAN MARCOS               CA          92069          SFD         7.000        6.500        $1,829.25    360
5032441               RANCHO PALOS VERDES      CA          90275          SFD         7.500        6.500        $2,922.72    360
5032463               JOPLIN                   MO          64804          SFD         7.125        6.500        $2,069.66    360
5032465               SPRINGDALE               AR          72764          SFD         6.875        6.500        $2,128.45    360
5032536               CASTRO VALLEY            CA          94546          SFD         7.125        6.500        $1,872.94    360
5032556               BIG SKY                  MT          59716          PUD         7.375        6.500        $2,182.53    360
5032559               DANA POINT               CA          92629          SFD         7.000        6.500        $2,017.87    360
5032568               SAN JOSE                 CA          95148          SFD         7.125        6.500        $2,091.56    360
5032584               CHICAGO                  IL          60610          SFD         7.125        6.500        $1,987.47    360
5032598               BLOOMFIELD TOWNSHIP      MI          48301          SFD         7.125        6.500        $1,858.45    360
5032614               NORTH ANDOVER            MA          01845          SFD         7.000        6.500        $1,862.85    360
5032637               SANTA ROSA               CA          95404          SFD         7.375        6.500        $3,474.10    360
5032658               MILPITAS                 CA          95035          SFD         7.250        6.500        $2,278.47    360
5032667               SAN JOSE                 CA          95124          SFD         6.750        6.483        $1,805.70    360
5032727               GREENWICH                CT          06870          SFD         7.125        6.500        $3,368.59    360
5032728               SPRING LAKE              NJ          07762          SFD         7.625        6.500        $3,170.92    360
5032745               DALLAS                   TX          75214          SFD         7.125        6.500        $1,994.21    360
5032753               WEXFORD                  PA          15090          SFD         6.875        6.500        $2,299.25    360
5032824               SAN ANSELMO              CA          94960          SFD         6.750        6.483        $2,853.84    360
5032828               ALPHARETTA               GA          30022          SFD         6.750        6.483        $2,594.40    360
5032982               SUGAR LAND               TX          77479          SFD         6.875        6.500        $3,678.81    360
5033008               SAN JOSE                 CA          95129          SFD         8.125        6.500        $2,903.17    360
5033077               MOUNTAIN VIEW            CA          94040          SFD         7.500        6.500        $2,936.71    360
5033123               PASADENA                 MD          21122          SFD         6.750        6.483        $1,746.03    360
5033127               SUISUN CITY              CA          94585          SFD         7.000        6.500        $2,114.34    360
5033145               SCITUATE                 MA          02066          SFD         7.125        6.500        $2,155.90    360
5033166               OAKLAND                  CA          94605          SFD         7.000        6.500        $1,862.85    360
5033179               MOORPARK                 CA          93021          SFD         7.500        6.500        $1,940.33    360
5033209               FALLS CHURCH             VA          22046          SFD         6.250        5.983        $1,797.90    360
5033219               SAN JOSE                 CA          95124          SFD         7.000        6.500        $2,474.93    360
5033230               PORTLAND                 OR          97210          SFD         6.875        6.500        $1,951.08    360
5033260               RICHMOND                 VA          23229          SFD         7.125        6.500        $1,912.69    360
5033270               BOLTON                   MA          01740          SFD         7.375        6.500        $2,470.90    360
5033278               LOS ALTOS                CA          94024          SFD         7.250        6.500        $2,387.62    360
5033309               WESTBOROUGH              MA          01581          SFD         6.500        6.233        $1,959.42    360
5033340               BROOKLINE                MA          02446          LCO         7.000        6.500        $2,607.99    360
5033362               WARRENTON                VA          20186          SFD         7.250        6.500        $1,773.66    360
5033367               HERMOSA BEACH            CA          90254          SFD         7.625        6.500        $2,434.81    360
5033377               CHESTERFIELD             MO          63005          SFD         6.875        6.500        $2,318.97    360
5033411               HUTCHINSON               KS          67502          SFD         7.000        6.500        $2,461.62    360
5033479               CHESAPEAKE               VA          23320          SFD         7.000        6.500        $2,259.37    360
5033509               TORRANCE                 CA          90505          SFD         6.875        6.500        $2,259.84    360
5033585               RIVERSIDE                IL          60546          SFD         7.000        6.500        $1,962.65    360
5033639               SOLANA BEACH             CA          92075          SFD         6.750        6.483        $3,064.63    360
5033673               FORT COLLINS             CO          80525          SFD         6.750        6.483        $2,010.66    360
5033686               IRVINE                   CA          92614          SFD         7.000        6.500        $2,022.52    360
5033746               BETHESDA                 MD          20817          SFD         7.250        6.500        $1,991.96    360
5033772               BELLAIRE                 TX          77401          SFD         7.125        6.500        $3,915.99    360
5033798               LAGUNA BEACH             CA          92651          SFD         7.125        6.500        $3,233.85    360
5033811               CHARLOTTESVILLE          VA          22901          SFD         6.750        6.483        $1,900.40    360
5033851               SAN BRUNO                CA          94066          SFD         6.875        6.500        $1,689.63    360
5033871               GREENBRAE                CA          94904          SFD         7.125        6.500        $2,122.21    360
5033887               FREMONT                  CA          94539          SFD         7.250        6.500        $3,281.27    360
5033910               BURBANK                  CA          91505          SFD         7.250        6.500         $648.07     360
5033919               FOUNTAIN VALLEY          CA          92708          SFD         7.250        6.500        $1,903.27    360
5033927               OAKLAND                  CA          94611          SFD         7.250        6.500        $3,410.55    360
5033934               SANTA CLARA              CA          95054          SFD         7.125        6.500        $1,956.48    360
5033947               YORBA LINDA              CA          92886          SFD         7.500        6.500        $1,824.95    360
5033958               SAN RAMON                CA          94583          SFD         6.875        6.500        $1,773.71    360
5033984               CASTRO VALLEY            CA          94546          SFD         6.875        6.500        $1,806.55    360
5033994               ROCKLIN                  CA          95765          SFD         7.125        6.500        $1,909.99    360
5034002               DEL MAR                  CA          92014          LCO         7.250        6.500        $2,738.94    360
5034014               DANVILLE                 CA          94506          SFD         7.250        6.500        $2,217.08    360
5034055               LOS GATOS                CA          95030          SFD         7.000        6.500        $6,320.38    360
5034058               AUSTIN                   TX          78733          SFD         6.875        6.500        $2,535.09    360
5034290               LITTLETON                CO          80123          SFD         7.125        6.500        $2,140.41    360
5034360               WEATHERFORD              TX          76008          SFD         7.500        6.500        $2,936.00    360
5034369               IRVINE                   CA          92612          LCO         7.250        6.500        $2,210.26    360
5034383               NORTH BETHESDA           MD          20852          SFD         7.000        6.500        $2,328.56    360
5034387               ALPHARETTA               GA          30022          SFD         7.375        6.500        $2,154.22    360
5034550               SAN DIEGO                CA          92130          SFD         7.375        6.500        $2,051.31    360
5034572               MOUNTAIN VIEW            CA          94040          SFD         7.000        6.500        $2,328.56    360
5034585               HOLLISTER                CA          95023          SFD         7.125        6.500        $2,473.89    360
5034594               LOS GATOS                CA          95030          SFD         6.500        6.233        $3,792.41    360
5034608               LEAWOOD                  KS          66211          SFD         6.625        6.358        $1,920.93    360
5034625               SAN FRANCISCO            CA          94109          SFD         6.875        6.500        $1,970.79    360
5034634               CHESTER SPRINGS          PA          19425          SFD         6.500        6.233        $2,418.93    360
5034636               SAN JOSE                 CA          95123          SFD         7.000        6.500        $1,756.40    360
5034641               LA VERNE                 CA          91750          SFD         7.125        6.500        $1,836.89    360
5034644               MOUNTAIN VIEW            CA          94043          SFD         7.250        6.500        $1,732.73    360
5034650               HUNTINGTON BEACH         CA          92648          SFD         7.000        6.500        $2,208.80    360
5034690               SAN JOSE                 CA          95120          SFD         6.875        6.500        $2,517.36    360
5034725               ALPHARETTA               GA          30004          SFD         7.000        6.500        $1,995.91    360
5034742               SAN FRANCISCO            CA          94123          HCO         7.000        6.500        $3,991.82    360
5034748               IRVING                   TX          75063          SFD         7.000        6.500        $1,853.53    360
5034749               OAKLAND                  CA          94619          SFD         7.375        6.500        $1,947.71    360
5034842               FREMONT                  CA          94539          SFD         7.000        6.500        $2,701.13    360
5035121               BELLEVUE                 WA          98006          SFD         7.625        6.500        $1,781.87    360
5035156               NEWPORT BEACH AREA       CA          92657          LCO         7.375        6.500        $2,244.70    360
5035166               GLEN ALLEN               VA          23060          SFD         7.625        6.500        $2,066.76    360
5035185               LA CANADA                CA          91011          SFD         7.125        6.500        $3,227.12    360
5035206               CYPRESS                  CA          90630          SFD         7.250        6.500        $1,858.94    360
5035216               RANCHO PALOS VERDES      CA          90275          SFD         7.250        6.500        $3,172.12    360
5035226               TUSTIN                   CA          92782          SFD         7.250        6.500        $2,401.27    360
5035230               SAN JOSE                 CA          95120          SFD         7.000        6.500        $2,175.54    360
5035258               LAGUNA NIGUEL            CA          92677          SFD         6.625        6.358        $2,305.12    360
5035275               FOOTHILL RANCH AREA      CA          92610          SFD         7.000        6.500        $1,985.27    360
5035294               BURLINGAME               CA          94010          SFD         7.375        6.500        $1,864.83    360
5035354               MALIBU                   CA          90265          SFD         6.500        6.233        $2,191.01    360
5035368               VENTURA                  CA          93003          SFD         7.250        6.500        $1,749.79    360
5035389               LONG BEACH               CA          90803          SFD         7.000        6.500        $2,194.17    360
5035405               DANVILLE                 CA          94526          SFD         7.000        6.500        $3,941.92    360
5035416               CHESTERTON               IN          46304          SFD         6.875        6.500        $2,299.26    360
5035426               REDONDO BEACH            CA          90278          SFD         7.000        6.500        $2,894.07    360
5035432               SAN JOSE                 CA          95118          SFD         7.000        6.500        $2,215.46    360
5035438               CULVER CITY              CA          90230          SFD         7.375        6.500        $1,754.32    360
5035444               DANA POINT               CA          92629          SFD         7.000        6.500        $1,916.08    360
5035454               OLD LYME                 CT          06371          SFD         7.000        6.500        $2,015.87    360
5035469               YORBA LINDA              CA          92887          SFD         7.500        6.500        $2,674.50    360
5035476               LOS ANGELES              CA          90046          LCO         7.000        6.500        $2,827.54    360
5035486               MISSION VIEJO            CA          92691          SFD         6.750        6.483        $1,621.50    360
5035496               RANCHO SANTA MARGARITA ARCA          92688          SFD         7.250        6.500        $1,923.74    360
5035505               MOUNT VERNON             NY          10708          SFD         7.250        6.500        $3,956.62    360
5035547               LA MESA                  CA          91941          SFD         7.125        6.500        $2,863.31    360
5035566               SANTA CRUZ               CA          95062          SFD         7.375        6.500        $3,364.97    360
5035586               LOS ANGELES              CA          90039          SFD         7.000        6.500        $2,448.32    360
5035590               CASTRO VALLEY            CA          94552          SFD         7.250        6.500        $2,111.34    360
5035598               SANTA MONICA             CA          90405          LCO         7.250        6.500        $2,687.78    360
5035601               LONG BEACH               CA          90803          SFD         7.250        6.500        $2,305.76    360
5035676               ISSAQUAH                 WA          98029          SFD         6.875        6.500        $2,069.33    360
5035681               ORINDA                   CA          94563          SFD         8.125        6.500        $2,583.90    360
5035685               LOS ANGELES              CA          90025          HCO         7.375        6.500        $2,434.63    360
5035731               IRVINE                   CA          92606          SFD         7.500        6.500        $2,569.61    360
5035752               NASHVILLE                TN          37215          SFD         7.250        6.500        $1,904.98    360
5035773               CHINO HILLS              CA          91709          SFD         7.500        6.500        $2,203.93    360
5035792               ROCHESTER                MI          48306          SFD         7.000        6.500        $2,235.42    360
5035813               ACTON                    MA          01720          SFD         7.250        6.500        $2,142.04    360
5035833               TORRANCE                 CA          90505          SFD         7.125        6.500        $1,643.87    360
5035838               BLOOMINGDALE             IL          60108          SFD         7.000        6.500        $1,889.46    360
5035841               AUSTIN                   TX          78731          SFD         7.250        6.500        $1,916.92    360
5035855               DANA POINT               CA          92629          SFD         7.125        6.500        $2,910.46    360
5035877               SAN FRANCISCO            CA          94115          LCO         7.250        6.500        $2,210.25    360
5035892               NORTHVILLE               MI          48167          SFD         7.250        6.500        $2,019.24    360
5035897               VENTURA                  CA          93003          SFD         7.000        6.500        $2,198.16    360
5035903               SAN RAMON                CA          94583          SFD         6.750        6.483        $2,088.49    360
5035925               HUDSON                   MA          01749          SFD         6.750        6.483        $2,244.15    360
5035934               VIENNA                   VA          22181          SFD         7.500        6.500        $2,500.75    360
5035942               EAST GREENWICH           RI          02818          SFD         7.125        6.500        $1,706.19    360
5035965               WESTWOOD                 MA          02090          SFD         6.875        6.500        $2,049.62    360
5036037               DARIEN                   CT          06820          SFD         6.750        6.483        $2,205.24    360
5036057               RESTON                   VA          20194          SFD         7.250        6.500        $1,869.17    360
5036174               LONG BEACH               CA          90803          SFD         6.875        6.500        $2,144.22    360
5036218               SAN JUAN CAPISTRANO      CA          92675          SFD         7.000        6.500        $4,265.92    360
5036227               CITY OF LOS ANGELES  WOODCA          91364          SFD         7.375        6.500        $1,848.94    360
5036240               THOUSAND OAKS            CA          91362          SFD         7.250        6.500        $1,944.21    360
5036261               LOS ANGELES              CA          90732          SFD         7.500        6.500        $1,776.71    360
5036262               YORBA LINDA              CA          92687          SFD         7.250        6.500        $1,964.67    360
5036276               TOWNSHIP OF LOWER MAKEFIEPA          19067          SFD         7.000        6.500        $2,029.18    360
5036278               LINCOLN                  MA          01773          SFD         7.000        6.500        $1,871.17    360
5036291               MANHATTAN BEACH          CA          90266          SFD         7.250        6.500        $2,062.22    360
5036302               CHINO HILLS              CA          91709          SFD         7.375        6.500        $1,712.88    360
5036323               GILBERT                  AZ          85234          SFD         7.125        6.500        $2,452.34    360
5036352               WALNUT AREA              CA          91789          SFD         7.000        6.500        $1,689.87    360
5036373               LOS ANGELES              CA          90045          SFD         7.250        6.500        $2,339.86    360
5036377               TORRANCE                 CA          90503          SFD         6.625        6.358        $1,694.27    360
5036401               LAGUNA HILLS             CA          92653          SFD         7.250        6.500        $2,237.54    360
5036453               SIMI VALLEY              CA          93063          SFD         7.375        6.500        $1,993.98    360
5036468               SAN DIEGO                CA          92131          SFD         7.000        6.500        $1,812.62    360
5036486               CORONA                   CA          91719          SFD         7.000        6.500        $2,213.80    360
5036491               MANHATTAN BEACH          CA          90266          SFD         7.125        6.500        $1,953.79    360
5036500               COVINA AREA              CA          91724          SFD         7.000        6.500        $3,060.40    360
5036512               DANA POINT               CA          92624          SFD         7.125        6.500        $1,939.64    360
5036514               UPLAND                   CA          91784          SFD         7.250        6.500        $2,029.48    360
5036526               INGLEWOOD                CA          90302          SFD         7.250        6.500        $1,937.39    360
5036547               LOS ANGELES              CA          90004          SFD         6.750        6.483        $4,154.28    360
5036582               HOUSTON                  TX          77098          HCO         6.875        6.500        $2,049.62    360
5036592               LONG BEACH               CA          90803          SFD         7.000        6.500        $1,829.59    360
5036644               RIVERTON                 UT          84065          SFD         7.000        6.500        $1,697.86    360
5036657               LOS ANGELES              CA          90272          SFD         7.000        6.500        $4,317.82    360
5036684               ENCINO AREA  LOS ANGELES CA          91436          SFD         7.000        6.500        $2,511.52    360
5036688               PALO ALTO                CA          94303          SFD         8.000        6.500        $3,133.18    360
5036697               FURLONG                  PA          18925          SFD         7.250        6.500        $1,910.10    360
5036709               SANTA CLARITA            CA          91355          SFD         6.875        6.500        $1,872.25    360
5036724               CARLSBAD                 CA          92009          SFD         7.000        6.500        $2,281.99    360
5036735               GLENDORA                 CA          91741          SFD         7.000        6.500        $1,783.01    360
5036737               DECATUR                  GA          30030          SFD         7.250        6.500        $1,806.41    360
5036762               BIRMINGHAM               AL          35242          SFD         6.500        6.233        $1,769.79    360
5036766               SAN DIEGO                CA          92106          SFD         7.125        6.500        $2,488.38    360
5036823               SHELTON                  CT          06484          SFD         7.125        6.500        $2,290.65    360
5036846               BROOKLYN                 NY          11234          SFD         7.000        6.500        $3,326.51    360
5036858               TULSA                    OK          74114          SFD         7.000        6.500        $2,128.97    360
5036919               LOS ANGELES              CA          90049          SFD         7.250        6.500        $3,854.30    360
5037129               MERCER ISLAND            WA          98040          SFD         6.875        6.500        $2,463.49    360
5037130               SARATOGA                 CA          95070          SFD         7.375        6.500        $2,210.17    360
5037209               ANAHEIM                  CA          92808          SFD         7.000        6.500        $1,796.32    360
5037218               MONARCH BEACH AREA       CA          92629          SFD         7.000        6.500        $2,661.21    360
5037234               LONG BEACH               CA          90803          SFD         7.375        6.500        $2,248.15    360
5037283               SHADOW HILLS             CA          91040          SFD         7.000        6.500        $2,341.87    360
5037313               GALT                     CA          95632          SFD         7.375        6.500        $2,072.03    360
5037339               NEWPORT BEACH            CA          92660          SFD         7.250        6.500        $2,182.97    360
5037366               FREMONT                  CA          94539          SFD         7.500        6.500        $3,180.73    360
5037382               REDONDO BEACH            CA          90277          SFD         7.000        6.500        $2,484.91    360
5037403               AZLE                     TX          76020          SFD         6.750        6.483        $3,035.44    360
5037405               SAN RAMON                CA          94583          SFD         7.750        6.500        $2,124.88    360
5037408               TRABUCO CANYON           CA          92679          SFD         7.000        6.500        $2,348.52    360
5037430               ORANGE                   CA          92867          SFD         7.000        6.500        $2,262.03    360
5037448               MALIBU                   CA          90265          SFD         7.375        6.500        $3,259.99    360
5037466               SANTA ANA AREA           CA          92705          SFD         6.500        6.233        $3,247.25    360
5037470               LAGUNA NIGUEL            CA          92677          SFD         7.000        6.500        $2,049.14    360
5037479               POMPANO BEACH            FL          33062          SFD         7.125        6.500        $1,819.05    360
5037485               SAN DIEGO                CA          92131          SFD         7.500        6.500        $2,261.61    360
5037495               FULLERTON                CA          92831          SFD         7.000        6.500        $1,862.85    360
5037504               RANCHO CUCAMONGA         CA          91739          SFD         7.000        6.500        $1,663.26    360
5037523               LAGUNA BEACH             CA          92651          SFD         7.000        6.500        $2,993.87    360
5037652               IRVINGTON                NY          10533          SFD         7.625        6.500        $1,889.81    360
5037736               PORTLAND                 OR          97221          SFD         7.250        6.500        $1,740.91    360
5037753               HUNTINGTON BAY           NY          11743          SFD         7.375        6.500        $4,489.39    360
5037815               WESTPORT                 CT          06880          SFD         7.250        6.500        $2,182.96    360
5037937               SAN CARLOS               CA          94070          SFD         7.375        6.500        $2,037.50    360
5038205               GALLUP                   NM          87301          SFD         7.125        6.500        $1,650.62    360
5038206               MCKINNEY                 TX          75070          SFD         7.000        6.500        $2,089.05    360
5038273               ALPINE                   CA          91901          SFD         7.250        6.500        $2,237.54    360
5038295               LOS ANGELES              CA          91325          SFD         7.000        6.500        $1,729.79    360
5038320               RIDGEWOOD                NJ          07458          SFD         7.250        6.500        $1,790.72    360
5038337               LIVERMORE                CA          94550          SFD         7.125        6.500        $2,290.65    360
5038366               HUNTINGTON BEACH         CA          92647          SFD         7.250        6.500        $2,264.83    360
5038393               DOVE CANYON              CA          92679          SFD         6.750        6.483        $1,867.97    360
5038406               ORANGE                   CA          92869          SFD         7.250        6.500        $2,421.73    360
5038561               LAFAYETTE                CA          94549          SFD         7.375        6.500        $2,693.64    360
5038667               ATHENS                   GA          30605          SFD         7.125        6.500        $2,689.48    360
5038678               FERNANDINA BEACH         FL          32034          HCO         7.500        6.500        $3,496.08    360
5039190               SAN JUAN CAPISTRANO      CA          92675          SFD         7.000        6.500        $2,224.78    360
5039209               WALNUT                   CA          91789          SFD         7.375        6.500        $1,667.99    360
5039223               ANAHIEM                  CA          92867          SFD         7.125        6.500        $1,888.77    360
5039242               CINCINNATI               OH          45230          SFD         7.000        6.500        $1,856.20    360
5039262               YORBA LINDA              CA          92887          SFD         6.625        6.358        $1,898.53    360
5039317               SAN FRANCISCO            CA          94132          LCO         7.125        6.500        $2,371.49    360
5039366               LA VERNE                 CA          91750          SFD         7.250        6.500        $1,896.46    360
5039385               GLENDALE                 CA          91206          SFD         7.375        6.500        $2,590.04    360
5039406               LOS ANGELES              CA          91403          SFD         7.250        6.500        $2,831.04    360
5039432               NEWPORT BEACH            CA          92663          SFD         7.125        6.500        $3,476.39    360
5039437               WARWICK                  NY          10990          SFD         7.125        6.500        $1,792.10    360
5039521               AVONDALE                 PA          19311          SFD         6.625        6.358        $2,300.00    360
5039707               HOLMES BEACH             FL          34217          SFD         7.000        6.500        $3,326.52    360
5039721               MESA                     AZ          85205          SFD         7.625        6.500         $804.05     360
5039759               PORTLAND                 OR          97219          SFD         7.375        6.500         $794.28     360
5039835               PLANO                    TX          75025          SFD         7.250        6.500        $1,782.83    360
5039843               BROOKLYN                 NY          11234          SFD         7.375        6.500        $2,417.36    360
5039849               MOUNTAIN VIEW            CA          94040          SFD         7.500        6.500        $3,160.45    360
5039853               MISSION                  TX          78572          SFD         7.375        6.500        $1,812.34    360
5040141               VALENCIA                 CA          91355          SFD         7.375        6.500        $4,144.06    360
5040236               CARMEL VALLEY            CA          93024          SFD         6.875        6.500        $2,167.87    360
5040253               SEATTLE                  WA          98122          SFD         7.000        6.500        $1,871.17    360
5040347               RENTON                   WA          98059          SFD         7.750        6.500        $1,375.52    360
5040374               OVEIDO                   FL          32765          SFD         7.500        6.500         $538.40     360
5040383               LOS ANGELES              CA          91311          SFD         7.500        6.500        $1,727.06    360
5040403               LOS ANGELES              CA          90046          SFD         7.125        6.500        $2,188.24    360
5040413               PASADENA                 CA          91104          SFD         7.375        6.500        $2,044.40    360
5040579               HUNTINGTON               CA          92646          SFD         7.250        6.500        $2,063.59    360
5040614               SANIBEL                  FL          33957          SFD         7.000        6.500        $2,185.52    360
5040634               FOLSOM                   CA          95630          SFD         7.625        6.500        $2,066.76    360
5040643               MORGAN HILL              CA          95037          SFD         7.750        6.500        $2,836.99    360
5040678               NEPONSIT                 NY          11694          SFD         7.250        6.500        $3,069.80    360
5040706               KANSAS CITY              MO          64113          SFD         7.500        6.500        $3,635.92    360
5040750               SAN JOSE                 CA          95131          SFD         7.750        6.500        $2,062.91    360
5040785               SCOTTSDALE               AZ          85260          SFD         7.625        6.500        $1,748.25    360
5040797               DUBLIN                   CA          94568          SFD         7.250        6.500        $1,991.95    360
5040798               ROCKLIN                  CA          95677          SFD         7.375        6.500        $1,138.24    360
5040807               AUSTIN                   TX          78726          SFD         7.375        6.500        $2,099.66    360
5040810               PETALUMA                 CA          94952          SFD         7.500        6.500        $1,223.63    360
5040812               WOODLAND HILLS           CA          91364          SFD         7.500        6.500        $2,097.65    360
5041160               RIVERSIDE                CA          92506          SFD         7.250        6.500        $1,749.10    360
5041183               VALENCIA                 CA          91354          SFD         7.375        6.500        $1,781.95    360
5041202               LOS ANGELES              CA          90045          SFD         7.375        6.500        $1,978.10    360
5041233               LOS ANGELES              CA          91602          SFD         7.625        6.500        $3,362.03    360
5041333               BOWIE                    MD          20721          SFD         7.375        6.500        $2,279.23    360
5041514               SAN DIEGO                CA          92122          LCO         7.250        6.500        $1,749.79    360
5041547               ACTON                    CA          93510          SFD         7.250        6.500        $2,106.57    360
5041692               MENIFEE                  CA          92584          SFD         7.250        6.500        $1,964.67    360
5041709               DANA POINT               CA          92629          SFD         6.875        6.500        $3,829.90    360
5041952               CORONA                   CA          91719          SFD         7.750        6.500        $2,371.32    360
5041962               SAN FRANCISCO            CA          94116          SFD         6.500        6.233        $2,839.57    360
5041971               SAN DIEGO                CA          92128          SFD         7.500        6.500        $2,545.14    360
5042002               MURRIETA                 CA          92562          SFD         7.000        6.500        $3,592.64    360
5042026               LOS ANGELES              CA          90066          SFD         7.125        6.500        $1,994.21    360
5042037               VALENCIA                 CA          91354          SFD         7.000        6.500        $1,798.32    360
5042050               FAIRVIEW TOWNSHIP        PA          17319          SFD         7.375        6.500        $2,027.14    360
5042052               MILL VALLEY              CA          94941          SFD         7.125        6.500        $4,379.18    360
5042069               THOUSAND OAKS            CA          91362          SFD         7.125        6.500        $1,926.84    360
5042087               CALABASAS                CA          91302          SFD         7.625        6.500        $1,776.57    360
5042108               FULLERTON                CA          92833          SFD         6.875        6.500        $1,882.11    360
5042185               LOS ALTOS                CA          94024          SFD         7.375        6.500        $3,764.18    360
5042195               ARCADIA                  CA          91007          SFD         7.125        6.500        $1,893.15    360
5042482               LAS VEGAS                NV          89102          SFD         7.625        6.500        $2,229.56    360
5042485               NEW HARMONY              UT          84757          SFD         7.000        6.500        $1,729.79    360
5042576               ARCADIA                  CA          91006          SFD         7.000        6.500        $1,463.67    360
5042578               ESCONDIDO                CA          92026          SFD         7.250        6.500        $1,186.30    360
5042913               EAST MORICHES            NY          11940          LCO         8.375        6.500         $760.07     360
5042930               NOVATO                   CA          94947          SFD         7.000        6.500        $2,195.50    360
5042953               WESTPORT                 CT          06880          SFD         6.500        6.233        $2,370.26    360
5042971               LOS ANGELES              CA          90008          SFD         7.000        6.500        $1,969.30    360
5043006               ESCONDIDO                CA          92029          SFD         7.000        6.500        $2,162.24    360
5043064               DALLAS                   TX          75230          SFD         6.875        6.500        $2,604.72    360
5043065               KIRKLAND                 WA          98033          SFD         7.500        6.500        $3,279.07    360
5043086               SAN JOSE                 CA          95116          LCO         7.000        6.500         $532.25     360
5043106               PALO ALTO                CA          94306          SFD         7.250        6.500        $2,728.71    360
5043352               SAN DIEGO                CA          92109          SFD         7.250        6.500        $2,046.53    360
5043361               SUDBURY                  MA          01776          SFD         7.125        6.500        $1,798.83    360
5043431               WEST ORANGE              NJ          07052          SFD         7.375        6.500        $1,616.19    360
5043510               ST. PETERSBURG           FL          33703          PUD         7.625        6.500        $1,776.56    360
5043549               MANALAPAN                NJ          07726          SFD         7.625        6.500        $1,663.32    360
5043576               IRVINGTON                NY          10533          SFD         7.000        6.500        $4,324.47    360
5043839               LA JOLLA                 CA          92037          SFD         7.000        6.500        $2,262.03    360
5043889               SOUTH SAN FRANCISCO      CA          94080          SFD         7.625        6.500        $2,010.13    360
5043969               MILPITAS                 CA          95035          SFD         7.125        6.500        $1,770.53    360
5044286               ROGERS                   AR          72758          SFD         6.875        6.500        $1,950.09    360
5044288               FAYETTEVILLE             AR          72703          SFD         6.875        6.500        $3,132.24    360
5047319               JAMUL                    CA          91935          SFD         7.125        6.500        $1,724.72    360
5047370               SAN DIEGO                CA          92130          SFD         7.250        6.500        $2,305.76    360
5047391               THOUSAND OAKS            CA          91362          SFD         6.750        6.483        $1,939.31    360
5047397               THOUSAND OAKS            CA          91361          SFD         7.000        6.500        $2,459.60    300
5047401               EL TORO AREA             CA          92630          SFD         7.000        6.500        $1,995.91    360
5047409               LOS ANGELES              CA          90039          SFD         7.000        6.500        $1,949.34    360
5047410               CULVER CITY              CA          90230          SFD         7.375        6.500        $2,565.86    360
5047426               CARLSBAD                 CA          92008          SFD         7.125        6.500        $2,856.57    360
5047440               SAN MATEO                CA          94402          SFD         7.000        6.500        $1,995.91    360
5047455               SAN DIEGO                CA          92122          SFD         7.000        6.500        $2,079.08    360
5047459               WHITTIER                 CA          90602          SFD         7.000        6.500        $2,029.18    360
5047465               CYPRESS                  CA          90630          SFD         7.375        6.500        $2,396.65    360
5047468               TIBURON                  CA          94920          SFD         7.000        6.500        $2,104.69    360
5047474               HACIENDA HEIGHTS AREA    CA          91745          SFD         7.000        6.500        $1,973.29    360
5047490               VILLA PARK               CA          92681          SFD         7.375        6.500        $2,369.02    360
5047515               LOS ANGELES              CA          91302          SFD         7.125        6.500        $3,584.19    360
5047517               FOSTER CITY              CA          94404          SFD         7.500        6.500        $2,307.41    360
5047542               LOS ANGELES              CA          91316          SFD         6.875        6.500        $2,548.89    360
5047580               TORRANCE                 CA          90277          SFD         7.125        6.500        $2,230.01    360
5047699               LOS ANGELES              CA          90035          SFD         7.000        6.500        $2,594.68    360
5047702               LOS ANGELES              CA          90039          SFD         7.125        6.500        $2,068.32    360
5047716               WELLESLEY                MA          02181          SFD         7.250        6.500        $2,353.51    360
5047720               CHARLOTTE                NC          28207          LCO         7.625        6.500         $535.10     360
5047737               HONOLULU                 HI          96822          HCO         6.875        6.500        $2,713.12    360
5047771               LOS ANGELES              CA          90290          SFD         7.000        6.500        $3,133.58    360
5047801               THOUSAND OAKS            CA          91362          SFD         7.375        6.500        $2,654.96    360
5047812               MILLBRAE                 CA          94030          SFD         7.250        6.500        $2,421.73    360
5047828               ROLLING HILLS ESTATES    CA          90274          SFD         7.500        6.500        $2,181.55    360
5047845               LOS ALTOS                CA          94024          SFD         7.375        6.500        $2,624.57    360
5047850               AUBURN                   CA          95603          SFD         7.000        6.500        $2,500.21    360
5047874               LOS ANGELES              CA          90291          SFD         7.000        6.500        $2,794.28    360
5047891               OAKLAND                  CA          94610          SFD         7.000        6.500        $2,927.34    360
5047916               LAFAYETTE                CA          94549          SFD         7.000        6.500        $2,128.97    360
5047951               LAS VEGAS                NV          89117          SFD         7.000        6.500        $1,676.57    360
5047958               LAFAYETTE                CA          94549          SFD         7.125        6.500        $3,914.31    360
5047984               SAN DIEGO                CA          92120          SFD         7.375        6.500        $1,664.53    360
5048022               CHINO HILLS              CA          91709          SFD         7.000        6.500        $1,643.30    360
5048026               SAN DIEGO                CA          92129          SFD         7.375        6.500        $1,905.92    360
5049097               VENTURA                  CA          93004          SFD         7.625        6.500        $1,769.48    360
5054590               MONMOUTH BEACH           NJ          07750          SFD         7.125        6.500        $3,584.19    360
7623550               PLEASANTON               CA          94588          SFD         7.375        6.500        $2,072.03    360



</TABLE>


<TABLE>
NASCOR
NMI / 1999-18 Exhibit F-2
30 YEAR FIXED RATE NON-RELOCATION LOANS
(continued)
<CAPTION>



(i)           (viii)             (ix)            (x)        (xi)         (xii)        (xiii)      (xiv)         (xv)          (xvi)
- -----       ----------      --------------      ------    ---------   ----------     --------  -----------   -----------   --------
                                CUT-OFF
MORTGAGE     SCHEDULED           DATE                                  MORTGAGE                   T.O.P.       MASTER         FIXED
LOAN         MATURITY          PRINCIPAL                               INSURANCE     SERVICE     MORTGAGE      SERVICE      RETAINED
NUMBER         DATE             BALANCE          LTV       SUBSIDY       CODE          FEE         LOAN          FEE          YIELD
- --------    -----------     --------------      ------    ---------   ----------     --------  -----------   -----------   --------
<S>        <C>             <C>               <C>          <C>         <C>           <C>         <C>          <C>           <C>
6518705      1-Apr-29        $ 303,420.12      79.86 2                  2             0.250                     0.017         0.358
6593778      1-May-29        $ 312,749.70      79.98 0                  0             0.250                     0.017         0.358
6615468      1-Apr-29        $ 298,407.82      66.44 2                  2             0.250                     0.017         0.233
6667853      1-Apr-29        $ 283,052.54      80.00 4                  4             0.250                     0.017         0.483
6691861      1-Mar-28        $ 239,362.86      89.99 6                  6 17          0.250                     0.017         0.608
6713160      1-Jun-29        $ 560,000.00      72.26 0                  0             0.250                     0.017         0.483
6734357      1-Jun-29        $ 397,000.00      78.61 0                  0             0.250                     0.017         0.483
6765188      1-May-29        $ 382,929.54      79.86 4                  4             0.250                     0.017         0.983
6790957      1-Apr-29        $ 499,177.93      65.21 3                  3             0.250                     0.017         0.233
6792141      1-Jun-29        $ 475,908.00      80.00 0                  0             0.250                     0.017         0.733
6802031      1-May-29        $ 306,977.08      79.48 8                  8             0.250                     0.017         0.858
6802407      1-May-29        $ 249,804.98      57.47 8                  8             0.250                     0.017         0.483
6827238      1-May-29        $ 281,351.55      79.99 5                  5             0.250                     0.017         0.000
6829093      1-May-29        $ 249,800.08      41.12 8                  8             0.250                     0.017         0.358
6835944      1-May-29        $ 327,544.29      79.95 9                  9             0.250                     0.017         0.483
6853704      1-Apr-29        $ 313,870.13      89.99 3                  3 01          0.250                     0.017         0.608
6855056      1-Jun-29        $ 386,000.00      61.76 0                  0             0.250                     0.017         0.233
6879890      1-Jan-29        $ 408,370.35      79.99 5                  5             0.250                     0.017         0.000
6880358      1-May-29        $ 411,670.53      80.00 3                  3             0.250                     0.017         0.358
6896945      1-Oct-28        $ 238,493.77      95.00 7                  7 16          0.250                     0.017         0.733
6898485      1-Jul-28        $ 451,286.78      80.00 8                  8             0.250                     0.017         0.483
6901875      1-May-29        $ 347,059.30      79.32 0                  0             0.250                     0.017         0.483
6914338      1-Apr-29        $ 318,265.64      80.00 4                  4             0.250                     0.017         0.358
6934246      1-Aug-28        $ 491,031.86      80.01 6                  6             0.250                     0.017         0.483
6943858      1-May-29        $ 311,768.45      80.00 5                  5             0.250                     0.017         0.733
6944663      1-Oct-28        $ 230,552.55      89.98 5                  5 12          0.250                     0.017         0.358
6948016      1-Jun-29        $ 400,000.00      88.89 0                  0 11          0.250                     0.017         0.733
6956720      1-Dec-28        $ 535,555.47      79.93 7                  7             0.250                     0.017         0.608
7021737      1-May-29        $ 322,481.91      90.00 1                  1 01          0.250                     0.017         0.358
7022390      1-May-29        $ 275,784.69      78.45 9                  9             0.250                     0.017         0.483
7024348      1-May-29        $ 316,234.10      78.15 0                  0             0.250                     0.017         0.108
7024762      1-May-29        $ 399,663.95      80.00 5                  5             0.250                     0.017         0.108
7034765      1-Dec-28        $ 268,713.97      80.00 7                  7             0.250                     0.017         0.733
7037809      1-May-29        $ 289,768.10      68.24 0                  0             0.250                     0.017         0.358
7046652      1-May-29        $ 262,184.92      80.00 2                  2             0.250                     0.017         0.233
7047630      1-Mar-29        $ 263,702.66      95.00 6                  6 24          0.250                     0.017         0.483
7072590      1-May-29        $ 349,698.66      61.83 6                  6             0.250                     0.017         0.000
7072868      1-Apr-29        $ 238,088.15      90.00 5                  5 33          0.250                     0.017         0.000
7073284      1-Mar-29        $ 345,101.26      80.00 6                  6             0.250                     0.017         0.000
7075360      1-May-29        $ 451,647.39      80.00 9                  9             0.250                     0.017         0.483
7076888      1-Apr-29        $ 518,367.13      79.99 3                  3             0.250                     0.017         0.358
7084680      1-May-29        $ 349,720.12      67.05 2                  2             0.250                     0.017         0.358
7094296      1-Jun-29        $ 408,023.00      80.00 0                  0             0.250                     0.017         0.358
7098290      1-Jun-29        $ 500,000.00      80.00 0                  0             0.250                     0.017         0.483
7110536      1-Jun-29        $ 357,500.00      80.00 0                  0             0.250                     0.017         0.358
7111419      1-Nov-28        $ 361,616.91      75.00 1                  1             0.250                     0.017         0.733
7117092      1-May-29        $ 299,560.09      38.36 9                  9             0.250                     0.017         0.358
7122192      1-Jun-29        $ 275,000.00      67.57 0                  0             0.250                     0.017         0.233
7123990      1-May-29        $ 256,429.56      85.54 6                  6 11          0.250                     0.017         0.733
7138265      1-Jun-29        $ 299,455.00      80.00 0                  0             0.250                     0.017         0.483
7141908      1-Mar-29        $ 541,307.79      79.99 9                  9             0.250                     0.017         0.233
7142752      1-Oct-28        $ 118,451.86      75.00 6                  6             0.250                     0.017         0.233
7143276      1-Apr-29        $ 360,097.60      80.00 0                  0             0.250                     0.017         0.483
7154496      1-Nov-28        $ 344,520.57      80.00 7                  7             0.250                     0.017         0.608
7165792      1-Dec-28        $ 154,802.09      69.33 9                  9             0.250                     0.017         0.858
7169345      1-May-29        $ 419,688.30      80.00 0                  0             0.250                     0.017         0.733
7184777      1-May-29        $ 535,038.95      85.00 5                  5 06          0.250                     0.017         0.000
7185018      1-Jun-29        $ 432,286.00      80.00 0                  0             0.250                     0.017         0.483
7189071      1-May-29        $ 249,800.08      76.92 8                  8             0.250                     0.017         0.358
7189072      1-Jun-29        $ 125,000.00      52.11 0                  0             0.250                     0.017         0.983
7201196      1-Jan-29        $ 116,581.74      75.00 4                  4             0.250                     0.017         0.983
7201530      1-Jun-29        $ 291,000.00      78.32 0                  0             0.250                     0.017         0.108
7201882      1-Mar-29        $ 530,933.52      80.00 2                  2             0.250                     0.017         0.233
7205497      1-May-29        $ 189,836.41      72.18 1                  1             0.250                     0.017         0.000
7214290      1-Jun-29        $ 793,600.00      79.36 0                  0             0.250                     0.017         0.483
7215298      1-May-29        $ 294,758.19      74.66 9                  9             0.250                     0.017         0.233
7227154      1-May-29        $ 287,780.86      80.00 6                  6             0.250                     0.017         0.608
7229545      1-May-29        $ 253,846.84      69.99 4                  4             0.250                     0.017         0.358
7235901      1-May-29        $ 246,717.13      95.00 3                  3 33          0.250                     0.017         0.608
7259014      1-May-29        $ 294,758.19      74.68 9                  9             0.250                     0.017         0.233
7283222      1-May-29        $ 266,342.07      78.28 7                  7             0.250                     0.017         0.483
7283498      1-Dec-28        $ 104,513.19      75.00 9                  9             0.250                     0.017         0.608
7286170      1-May-29        $ 299,741.71      77.14 1                  1             0.250                     0.017         0.000
7316278      1-May-29        $ 469,614.75      79.97 5                  5             0.250                     0.017         0.233
7323134      1-May-29        $ 439,477.34      80.00 4                  4             0.250                     0.017         0.608
7325165      1-Jun-29        $ 609,200.00      79.99 0                  0             0.250                     0.017         0.000
7328806      1-Nov-24        $ 231,327.92      71.85 2                  2             0.250                     0.017         0.358
7330237      1-Jun-29        $ 450,000.00      74.66 0                  0             0.250                     0.017         0.000
7330287      1-Mar-29        $ 479,361.39      80.00 9                  9             0.250                     0.017         0.233
7352434      1-May-29        $ 295,757.37      80.00 7                  7             0.250                     0.017         0.233
7355351      1-May-29        $ 274,774.59      41.70 9                  9             0.250                     0.017         0.233
7373266      1-May-29        $ 353,402.85      89.99 5                  5 17          0.250                     0.017         0.108
7380308      1-Jun-29        $ 337,661.00      80.00 0                  0             0.250                     0.017         0.233
7381263      1-Apr-29        $ 119,802.71      51.77 1                  1             0.250                     0.017         0.233
7382045      1-Jun-29        $ 340,000.00      80.00 0                  0             0.250                     0.017         0.483
7389459      1-May-29        $ 414,509.95      73.00 5                  5             0.250                     0.017         0.233
7391326      1-May-29        $ 302,419.72      80.00 2                  2             0.250                     0.017         0.108
7400056      1-May-29        $ 484,792.37      80.00 7                  7             0.250                     0.017         0.108
7409542      1-Dec-28         $ 93,346.50      75.00 0                  0             0.250                     0.017         0.983
7409797      1-May-29        $ 447,750.44      77.26 4                  4             0.250                     0.017         0.483
7416490      1-May-29        $ 684,504.21      69.19 1                  1             0.250                     0.017         0.858
7420497      1-Dec-28        $ 153,250.02      70.00 2                  2             0.250                     0.017         0.358
7430734      1-May-29        $ 460,322.37      80.00 7                  7             0.250                     0.017         0.233
7440280      1-Apr-29        $ 175,965.48      75.00 8                  8             0.250                     0.017         0.858
7440512      1-Jan-29        $ 517,530.94      80.00 4                  4             0.250                     0.017         0.608
7442551      1-Apr-29        $ 550,447.84      79.99 4                  4             0.250                     0.017         0.000
7442649      1-May-29        $ 350,882.80      89.99 0                  0 17          0.250                     0.017         0.608
7443914      1-Apr-29        $ 252,254.63      89.98 3                  3 33          0.250                     0.017         0.483
7448102      1-Jan-29        $ 330,623.37      80.00 7                  7             0.250                     0.017         0.233
7448568      1-Feb-29         $ 52,833.13      62.35 3                  3             0.250                     0.017         0.483
7450930      1-Jun-29        $ 278,300.00      84.99 0                  0 06          0.250                     0.017         0.483
7455285      1-May-29        $ 297,228.88      80.00 8                  8             0.250                     0.017         0.000
7455408      1-May-29        $ 349,726.96      68.63 6                  6             0.250                     0.017         0.483
7462083      1-May-29        $ 280,320.54      80.00 4                  4             0.250                     0.017         0.608
7462561      1-May-29        $ 359,726.07      80.00 7                  7             0.250                     0.017         0.608
7465216      1-May-29        $ 326,944.75      80.00 5                  5             0.250                     0.017         0.483
7467954      1-Jan-29        $ 131,504.04      68.75 4                  4             0.250                     0.017         0.733
7469005      1-Apr-29        $ 390,484.57      79.99 7                  7             0.250                     0.017         0.000
7482734      1-May-29        $ 449,621.95      60.31 5                  5             0.250                     0.017         0.108
7482806      1-May-29        $ 278,275.42      94.99 2                  2 11          0.250                     0.017         0.858
7491478      1-May-29        $ 299,281.48      80.00 8                  8             0.250                     0.017         0.233
7493609      1-May-29        $ 303,280.23      90.00 3                  3 11          0.250                     0.017         0.483
7495072      1-Feb-29        $ 498,464.07      80.00 7                  7             0.250                     0.017         0.608
7508145      1-Mar-29        $ 282,819.73      80.00 3                  3             0.250                     0.017         0.233
7513750      1-May-29        $ 249,795.07      78.97 7                  7             0.250                     0.017         0.233
7520997      1-May-29        $ 327,737.70      80.00 0                  0             0.250                     0.017         0.358
7525792      1-May-29        $ 299,777.36      94.96 6                  6 11          0.250                     0.017         0.733
7529063      1-Apr-29        $ 292,294.38      80.00 8                  8             0.250                     0.017         0.000
7529946      1-May-29        $ 439,630.34      80.00 4                  4             0.250                     0.017         0.108
7531624      1-May-29        $ 269,189.85      80.00 5                  5             0.250                     0.017         0.483
7535075      1-Apr-29        $ 298,076.15      80.00 5                  5             0.250                     0.017         0.358
7540564      1-Apr-29        $ 370,886.84      80.00 4                  4             0.250                     0.017         0.358
7542575      1-Mar-29        $ 284,345.42      95.00 2                  2 17          0.250                     0.017         0.608
7542921      1-May-29        $ 341,726.51      79.91 1                  1             0.250                     0.017         0.358
7544354      1-May-29        $ 339,421.55      79.44 5                  5             0.250                     0.017         0.233
7545213      1-Jun-29        $ 251,750.00      95.00 0                  0 17          0.250                     0.017         0.858
7549433      1-Mar-29        $ 121,712.74      40.67 4                  4             0.250                     0.017         0.483
7550599      1-Jun-29        $ 352,000.00      80.00 0                  0             0.250                     0.017         0.358
7551587      1-Apr-29        $ 149,782.19      69.77 9                  9             0.250                     0.017         0.858
7560700      1-Mar-29        $ 454,427.55      80.00 5                  5             0.250                     0.017         0.483
7561529      1-Mar-29         $ 33,681.40      75.00 0                  0             0.250                     0.017         1.233
7561535      1-Apr-29        $ 247,621.44      58.35 4                  4             0.250                     0.017         0.608
7562115      1-May-29        $ 286,297.79      75.99 9                  9             0.250                     0.017         0.983
7563480      1-May-29        $ 338,735.55      77.22 5                  5             0.250                     0.017         0.483
7563830      1-Mar-29        $ 398,909.31      60.88 1                  1             0.250                     0.017         0.000
7565358      1-Mar-29        $ 259,387.84      56.77 4                  4             0.250                     0.017         0.483
7565752      1-May-29        $ 374,721.70      68.65 0                  0             0.250                     0.017         0.733
7566373      1-May-29        $ 574,562.47      63.89 7                  7             0.250                     0.017         0.608
7566768      1-Jun-29        $ 316,900.00      79.99 0                  0             0.250                     0.017         0.358
7568183      1-May-29        $ 299,765.97      76.94 7                  7             0.250                     0.017         0.483
7568658      1-Apr-29        $ 354,566.08      80.00 8                  8             0.250                     0.017         0.233
7569674      1-May-29        $ 273,686.33      79.99 3                  3             0.250                     0.017         0.483
7569844      1-May-29        $ 379,688.52      80.00 2                  2             0.250                     0.017         0.233
7570149      1-May-29        $ 295,757.37      78.31 7                  7             0.250                     0.017         0.233
7571629      1-May-29        $ 277,793.68      79.20 8                  8             0.250                     0.017         0.733
7572575      1-Apr-29        $ 205,435.93      74.82 3                  3             0.250                     0.017         0.608
7573137      1-May-29        $ 514,534.43      77.44 3                  3             0.250                     0.017         0.000
7573563      1-Mar-29         $ 59,463.11      74.97 1                  1             0.250                     0.017         0.608
7579331      1-May-29        $ 263,394.36      79.99 6                  6             0.250                     0.017         0.483
7579978      1-May-29        $ 384,692.12      74.60 2                  2             0.250                     0.017         0.358
7580261      1-Mar-29         $ 99,786.90      74.13 0                  0             0.250                     0.017         0.983
7580383      1-Jun-29        $ 295,308.00      80.00 0                  0             0.250                     0.017         0.483
7584049      1-Jun-29        $ 256,000.00      94.98 0                  0 33          0.250                     0.017         0.858
7585262      1-Jun-29        $ 325,821.00      80.00 0                  0             0.250                     0.017         0.108
7587498      1-May-29        $ 296,756.55      74.25 5                  5             0.250                     0.017         0.233
7589106      1-Jun-29        $ 643,200.00      80.00 0                  0             0.250                     0.017         0.358
7589365      1-Apr-29        $ 723,865.44      46.77 4                  4             0.250                     0.017         0.483
7590390      1-May-29        $ 269,568.85      90.00 5                  5 17          0.250                     0.017         0.233
7590589      1-May-29        $ 425,875.69      79.99 9                  9             0.250                     0.017         0.608
7591725      1-Apr-29        $ 285,106.82      80.00 2                  2             0.250                     0.017         0.000
7592412      1-May-29        $ 279,786.94      80.00 4                  4             0.250                     0.017         0.608
7593170      1-Mar-29        $ 268,051.55      79.99 5                  5             0.250                     0.017         0.358
7596229      1-Jun-29        $ 500,000.00      63.29 0                  0             0.250                     0.017         0.733
7597480      1-Apr-29        $ 199,679.17      28.57 7                  7             0.250                     0.017         0.358
7597513      1-May-29        $ 280,591.61      80.00 1                  1             0.250                     0.017         0.733
7598203      1-May-29        $ 264,793.27      72.60 7                  7             0.250                     0.017         0.483
7599108      1-May-29        $ 257,814.50      75.00 0                  0             0.250                     0.017         0.233
7599312      1-May-29        $ 369,081.22      80.00 2                  2             0.250                     0.017         0.233
7604211      1-Apr-29        $ 353,089.23      32.15 3                  3             0.250                     0.017         0.000
7604818      1-May-29        $ 345,216.80      73.51 0                  0             0.250                     0.017         0.233
7605875      1-May-29        $ 251,538.50      95.00 0                  0 01          0.250                     0.017         0.108
7605980      1-May-29        $ 274,763.24      62.50 4                  4             0.250                     0.017         0.000
7606493      1-May-29        $ 324,758.80      63.41 0                  0             0.250                     0.017         0.733
7606544      1-May-29        $ 273,983.10      80.00 0                  0             0.250                     0.017         0.483
7608155      1-May-29        $ 364,515.42      79.99 2                  2             0.250                     0.017         0.483
7610281      1-May-29        $ 314,748.10      52.07 0                  0             0.250                     0.017         0.358
7610472      1-May-29        $ 701,561.00      58.54 0                  0             0.250                     0.017         0.358
7610724      1-May-29        $ 399,687.96      64.00 6                  6             0.250                     0.017         0.483
7612340      1-Apr-29        $ 274,558.86      44.07 6                  6             0.250                     0.017         0.358
7614664      1-Jun-29        $ 292,800.00      80.00 0                  0             0.250                     0.017         0.608
7615076      1-Jun-29        $ 429,486.00      80.00 0                  0             0.250                     0.017         0.358
7615129      1-May-29        $ 480,897.80      80.00 0                  0             0.250                     0.017         0.608
7615476      1-May-29        $ 259,707.12      79.97 2                  2             0.250                     0.017         0.733
7616255      1-May-29        $ 267,796.07      73.42 7                  7             0.250                     0.017         0.608
7616602      1-Apr-29        $ 399,325.97      79.21 7                  7             0.250                     0.017         0.108
7617195      1-Apr-29        $ 119,093.45      74.58 5                  5             0.250                     0.017         1.358
7617781      1-May-29        $ 514,088.56      70.00 6                  6             0.250                     0.017         0.358
7618681      1-May-29        $ 337,243.19      75.00 9                  9             0.250                     0.017         0.608
7619822      1-May-29        $ 271,651.59      80.00 9                  9             0.250                     0.017         0.108
7620296      1-May-29        $ 268,884.80      90.00 0                  0 12          0.250                     0.017         0.358
7620360      1-May-29        $ 379,680.75      69.09 5                  5             0.250                     0.017         0.108
7620930      1-May-29        $ 630,386.85      80.00 5                  5             0.250                     0.017         0.483
7621196      1-May-29        $ 243,768.96      95.00 6                  6 13          0.250                     0.017         0.733
7621240      1-May-29        $ 355,722.28      80.00 8                  8             0.250                     0.017         0.483
7622122      1-May-29        $ 332,752.87      69.38 7                  7             0.250                     0.017         0.733
7622697      1-Apr-29        $ 179,696.68      45.00 8                  8             0.250                     0.017         0.108
7622737      1-May-29        $ 349,713.11      66.67 1                  1             0.250                     0.017         0.233
7622912      1-Apr-29        $ 130,814.48      73.18 8                  8             0.250                     0.017         0.983
7622934      1-May-29        $ 499,547.99      57.14 9                  9             0.250                     0.017         0.000
7624760      1-May-29        $ 324,746.47      72.22 7                  7             0.250                     0.017         0.483
7625926      1-May-29        $ 286,720.53      94.99 3                  3 17          0.250                     0.017         0.358
7626203      1-Apr-29        $ 315,324.87      75.00 7                  7             0.250                     0.017         1.233
7629781      1-May-29        $ 556,062.19      69.56 9                  9             0.250                     0.017         0.483
7629947      1-May-29        $ 324,720.19      68.42 9                  9             0.250                     0.017         0.000
7630443      1-Jun-29        $ 272,000.00      75.24 0                  0             0.250                     0.017         0.483
7630634      1-May-29        $ 299,747.96      75.00 6                  6             0.250                     0.017         0.108
7630636      1-Apr-29        $ 149,654.37      31.91 7                  7             0.250                     0.017         0.483
7631084      1-May-29        $ 370,218.08      75.00 8                  8             0.250                     0.017         0.608
7631998      1-May-29        $ 263,788.88      80.00 8                  8             0.250                     0.017         0.358
7633448      1-May-29        $ 381,409.55      41.04 5                  5             0.250                     0.017         0.608
7633809      1-May-29        $ 377,705.12      70.00 2                  2             0.250                     0.017         0.483
7633978      1-May-29        $ 519,525.33      80.00 3                  3             0.250                     0.017         0.483
7635306      1-Apr-29        $ 227,000.77      84.89 7                  7             0.250                     0.017         0.733
7636731      1-May-29        $ 294,658.19      72.84 9                  9             0.250                     0.017         0.233
7637187      1-Apr-29        $ 150,181.61      80.00 1                  1             0.250                     0.017         0.858
7637927      1-May-29        $ 347,576.41      80.00 1                  1             0.250                     0.017         0.358
7638543      1-May-29        $ 444,635.23      52.48 3                  3             0.250                     0.017         0.233
7639472      1-May-29        $ 287,763.93      90.00 3                  3 06          0.250                     0.017         0.233
7639606      1-May-29        $ 343,667.57      87.66 7                  7 24          0.250                     0.017         0.358
7640454      1-Jun-29        $ 319,500.00      75.00 0                  0             0.250                     0.017         1.233
7641928      1-May-29        $ 279,781.58      80.00 8                  8             0.250                     0.017         0.483
7642554      1-May-29        $ 364,693.36      67.59 6                  6             0.250                     0.017         0.108
7642613      1-May-29        $ 377,205.51      62.92 1                  1             0.250                     0.017         0.483
7642615      1-May-29        $ 324,227.38      52.76 8                  8             0.250                     0.017         0.108
7642777      1-May-29        $ 445,634.42      71.94 2                  2             0.250                     0.017         0.233
7642839      1-May-29        $ 407,657.23      80.00 3                  3             0.250                     0.017         0.108
7642877      1-May-29        $ 359,719.17      66.06 7                  7             0.250                     0.017         0.483
7642898      1-Apr-29        $ 343,434.41      80.00 1                  1             0.250                     0.017         0.233
7642921      1-May-29        $ 804,356.26      70.00 6                  6             0.250                     0.017         0.358
7643464      1-May-29        $ 279,781.58      74.67 8                  8             0.250                     0.017         0.483
7643493      1-May-29        $ 489,608.16      70.00 6                  6             0.250                     0.017         0.358
7643572      1-May-29        $ 422,617.60      79.83 0                  0             0.250                     0.017         0.000
7644372      1-Jun-29        $ 284,950.00      79.99 0                  0             0.250                     0.017         0.483
7644648      1-May-29        $ 360,711.32      95.00 2                  2 11          0.250                     0.017         0.358
7644874      1-Jun-29        $ 380,720.00      80.00 0                  0             0.250                     0.017         0.358
7644883      1-May-29        $ 424,660.14      62.50 4                  4             0.250                     0.017         0.358
7646936      1-May-29        $ 343,751.02      80.00 2                  2             0.250                     0.017         0.858
7647092      1-Apr-29        $ 489,962.79      80.00 9                  9             0.250                     0.017         0.358
7647947      1-Jun-29        $ 235,000.00      53.31 0                  0             0.250                     0.017         0.358
7648815      1-May-29        $ 337,749.15      72.69 5                  5             0.250                     0.017         0.733
7649344      1-May-29        $ 374,707.47      52.45 7                  7             0.250                     0.017         0.483
7649412      1-May-29        $ 503,606.83      80.00 3                  3             0.250                     0.017         0.483
7650105      1-May-29        $ 299,747.96      43.67 6                  6             0.250                     0.017         0.108
7650140      1-May-29        $ 483,381.91      75.00 1                  1             0.250                     0.017         0.608
7652242      1-May-29        $ 354,723.06      77.17 6                  6             0.250                     0.017         0.483
7652331      1-May-29        $ 314,760.31      73.60 1                  1             0.250                     0.017         0.608
7652476      1-Jun-29        $ 632,000.00      80.00 0                  0             0.250                     0.017         0.733
7653222      1-Apr-29        $ 289,599.55      65.17 5                  5             0.250                     0.017         1.108
7653463      1-Jun-29        $ 434,000.00      70.00 0                  0             0.250                     0.017         0.733
7653590      1-May-29        $ 259,792.08      80.00 8                  8             0.250                     0.017         0.358
7654009      1-May-29        $ 467,652.68      80.00 8                  8             0.250                     0.017         0.733
7654715      1-May-29        $ 271,737.85      90.00 5                  5 01          0.250                     0.017         0.483
7654868      1-Apr-29        $ 307,042.17      75.00 7                  7             0.250                     0.017         0.733
7655003      1-Apr-29        $ 400,502.79      70.00 9                  9             0.250                     0.017         0.733
7655358      1-Jun-29        $ 400,000.00      56.74 0                  0             0.250                     0.017         0.858
7655439      1-May-29        $ 271,782.49      80.00 9                  9             0.250                     0.017         0.358
7656555      1-May-29        $ 499,590.16      19.61 6                  6             0.250                     0.017         0.233
7657036      1-May-29        $ 769,384.25      70.00 5                  5             0.250                     0.017         0.358
7657100      1-May-29        $ 499,619.54      62.34 4                  4             0.250                     0.017         0.608
7657987      1-May-29        $ 301,264.80      90.00 0                  0 06          0.250                     0.017         0.483
7658258      1-May-29        $ 359,690.05      69.23 5                  5             0.250                     0.017         0.000
7658401      1-Apr-29        $ 297,109.47      70.00 7                  7             0.250                     0.017         1.358
7658413      1-May-29        $ 263,794.05      80.00 5                  5             0.250                     0.017         0.483
7658646      1-Jun-29        $ 650,000.00      78.31 0                  0             0.250                     0.017         0.608
7658975      1-May-29        $ 132,906.13      53.20 3                  3             0.250                     0.017         0.983
7659125      1-May-29        $ 258,557.97      75.00 7                  7             0.250                     0.017         0.733
7659238      1-May-29        $ 349,733.68      46.67 8                  8             0.250                     0.017         0.608
7659384      1-May-29        $ 339,721.30      80.00 0                  0             0.250                     0.017         0.233
7659589      1-Jun-29       $ 1,000,000.00     66.67 0                  0             0.250                     0.017         0.233
7659800      1-May-29        $ 374,684.96      68.18 6                  6             0.250                     0.017         0.108
7660125      1-Apr-29        $ 381,521.69      79.99 9                  9             0.250                     0.017         0.233
7660492      1-May-29        $ 352,633.54      80.00 4                  4             0.250                     0.017         0.483
7660737      1-May-29        $ 396,674.58      69.89 8                  8             0.250                     0.017         0.233
7661009      1-Jun-29        $ 252,000.00      80.00 0                  0             0.250                     0.017         0.608
7661200      1-May-29        $ 393,450.39      75.00 9                  9             0.250                     0.017         0.608
7661519      1-May-29        $ 399,695.63      74.77 3                  3             0.250                     0.017         0.608
7661672      1-May-29        $ 359,712.11      80.00 1                  1             0.250                     0.017         0.358
7662928      1-May-29        $ 330,941.63      80.00 3                  3             0.250                     0.017         0.483
7663073      1-Apr-29        $ 345,984.09      77.00 9                  9             0.250                     0.017         0.733
7663634      1-Jun-29        $ 462,000.00      65.07 0                  0             0.250                     0.017         0.233
7663799      1-May-29        $ 615,519.46      77.97 6                  6             0.250                     0.017         0.483
7664511      1-May-29        $ 328,523.77      52.61 7                  7             0.250                     0.017         0.108
7664803      1-May-29        $ 313,342.94      80.00 4                  4             0.250                     0.017         0.233
7665262      1-May-29        $ 209,765.26      75.00 6                  6             0.250                     0.017         0.608
7665390      1-Apr-29        $ 380,184.19      60.16 9                  9             0.250                     0.017         0.608
7665567      1-May-29        $ 274,780.08      62.50 8                  8             0.250                     0.017         0.358
7665654      1-May-29        $ 435,659.88      80.00 8                  8             0.250                     0.017         0.483
7665822      1-May-29        $ 499,609.95      69.93 5                  5             0.250                     0.017         0.483
7665852      1-May-29        $ 999,329.02      37.04 2                  2             0.250                     0.017         1.233
7666399      1-Apr-29        $ 157,259.58      75.00 8                  8             0.250                     0.017         0.608
7666432      1-May-29        $ 379,688.52      66.09 2                  2             0.250                     0.017         0.233
7666555      1-Jun-29        $ 498,300.00      80.00 0                  0             0.250                     0.017         0.233
7666682      1-May-29        $ 310,745.08      78.73 8                  8             0.250                     0.017         0.233
7666974      1-May-29        $ 419,664.13      80.00 3                  3             0.250                     0.017         0.358
7667127      1-May-29        $ 265,276.94      90.00 4                  4 01          0.250                     0.017         0.108
7667565      1-May-29        $ 317,346.02      80.00 2                  2             0.250                     0.017         0.358
7668356      1-Apr-29        $ 324,491.41      78.59 1                  1             0.250                     0.017         0.483
7668557      1-Jun-29        $ 268,850.00      95.00 0                  0 17          0.250                     0.017         0.733
7669017      1-May-29        $ 242,600.98      80.00 8                  8             0.250                     0.017         0.233
7669046      1-May-29        $ 347,728.53      80.00 3                  3             0.250                     0.017         0.483
7669076      1-May-29        $ 263,772.70      80.00 0                  0             0.250                     0.017         0.000
7670125      1-May-29        $ 453,645.84      80.00 4                  4             0.250                     0.017         0.483
7670941      1-May-29        $ 374,741.93      75.00 3                  3             0.250                     0.017         1.108
7671977      1-May-29        $ 314,754.27      75.00 7                  7             0.250                     0.017         0.483
7672085      1-May-29        $ 584,508.53      65.00 3                  3             0.250                     0.017         0.108
7672102      1-May-29        $ 414,692.01      87.37 1                  1 17          0.250                     0.017         0.733
7672376      1-Jun-29        $ 700,000.00      69.90 0                  0             0.250                     0.017         0.733
7672435      1-May-29        $ 317,346.02      80.00 2                  2             0.250                     0.017         0.358
7672671      1-May-29        $ 309,752.10      44.93 0                  0             0.250                     0.017         0.358
7672695      1-May-29        $ 357,947.03      80.00 3                  3             0.250                     0.017         0.108
7672816      1-May-29        $ 355,998.56      95.00 6                  6 01          0.250                     0.017         0.983
7672905      1-May-29        $ 458,442.10      79.99 0                  0             0.250                     0.017         0.483
7672953      1-Jun-29        $ 500,000.00      80.00 0                  0             0.250                     0.017         0.108
7673200      1-Jun-29        $ 292,000.00      78.92 0                  0             0.250                     0.017         0.233
7673487      1-Apr-29        $ 229,674.29      58.97 9                  9             0.250                     0.017         0.983
7675155      1-May-29        $ 270,966.50      80.00 0                  0             0.250                     0.017         0.000
7675158      1-May-29        $ 314,947.94      80.00 4                  4             0.250                     0.017         0.358
7675501      1-May-29        $ 102,915.57      55.08 7                  7             0.250                     0.017         0.233
7675688      1-Jun-29        $ 360,000.00      37.04 0                  0             0.250                     0.017         0.608
7675715      1-Jun-29        $ 610,000.00      79.32 0                  0             0.250                     0.017         0.858
7675799      1-May-19        $ 285,467.44      79.89 4                  4             0.250                     0.017         0.483
7676323      1-Jun-29        $ 320,000.00      66.39 0                  0             0.250                     0.017         0.733
7676989      1-May-29        $ 476,609.01      64.46 1                  1             0.250                     0.017         0.233
7677320      1-May-29        $ 256,244.88      90.00 8                  8 13          0.250                     0.017         0.358
7677714      1-May-29        $ 323,753.46      80.00 6                  6             0.250                     0.017         0.608
7677858      1-Jun-29        $ 392,000.00      70.00 0                  0             0.250                     0.017         0.000
7678011      1-May-29        $ 299,765.97      80.00 7                  7             0.250                     0.017         0.483
7678734      1-May-29        $ 496,612.29      70.00 9                  9             0.250                     0.017         0.483
7678836      1-May-29        $ 295,745.15      80.00 5                  5             0.250                     0.017         0.000
7678906      1-May-29        $ 344,710.16      78.41 6                  6             0.250                     0.017         0.108
7678928      1-May-29        $ 774,364.74      23.48 4                  4             0.250                     0.017         0.233
7679399      1-May-29        $ 249,489.97      68.68 7                  7             0.250                     0.017         0.108
7679559      1-May-29        $ 289,779.33      74.36 3                  3             0.250                     0.017         0.608
7680133      1-Jun-29        $ 266,000.00      95.00 0                  0 33          0.250                     0.017         0.733
7680557      1-May-29        $ 340,976.77      70.00 7                  7             0.250                     0.017         0.358
7682030      1-May-29        $ 467,934.68      69.90 8                  8             0.250                     0.017         0.483
7682116      1-Jun-29        $ 284,800.00      80.00 0                  0             0.250                     0.017         0.000
7682150      1-Apr-29        $ 270,346.88      95.00 8                  8 33          0.250                     0.017         0.733
7682465      1-May-29        $ 311,768.45      76.10 5                  5             0.250                     0.017         0.733
7682596      1-May-29        $ 355,729.12      79.99 2                  2             0.250                     0.017         0.608
7682696      1-May-29        $ 289,784.78      80.00 8                  8             0.250                     0.017         0.733
7682715      1-May-29        $ 434,660.66      71.31 6                  6             0.250                     0.017         0.483
7682726      1-May-19        $ 245,977.90      72.49 0                  0             0.250                     0.017         0.233
7682824      1-May-29        $ 325,745.69      80.00 9                  9             0.250                     0.017         0.483
7682844      1-May-29        $ 122,411.34      64.47 4                  4             0.250                     0.017         0.858
7682906      1-May-29        $ 251,798.48      80.00 8                  8             0.250                     0.017         0.358
7682923      1-May-29        $ 312,300.06      70.24 6                  6             0.250                     0.017         0.358
7683003      1-May-29        $ 499,619.54      74.07 4                  4             0.250                     0.017         0.608
7683177      1-May-29        $ 264,788.09      57.61 9                  9             0.250                     0.017         0.358
7683256      1-May-29        $ 264,782.78      66.25 8                  8             0.250                     0.017         0.233
7683282      1-May-29        $ 491,565.92      49.20 2                  2             0.250                     0.017         0.000
7683393      1-Jun-29        $ 471,200.00      80.00 0                  0             0.250                     0.017         0.858
7683912      1-Jun-29        $ 432,000.00      80.00 0                  0             0.250                     0.017         0.483
7684026      1-May-29        $ 166,470.03      70.00 3                  3             0.250                     0.017         0.483
7684361      1-May-29        $ 543,564.97      80.00 7                  7             0.250                     0.017         0.358
7684652      1-May-29        $ 337,236.71      75.00 1                  1             0.250                     0.017         0.483
7684718      1-May-29        $ 170,866.61      75.00 1                  1             0.250                     0.017         0.483
7684844      1-May-29        $ 105,503.77      80.00 7                  7             0.250                     0.017         0.108
7685141      1-May-29        $ 999,219.91      33.33 1                  1             0.250                     0.017         0.483
7685496      1-May-29        $ 289,773.77      80.00 7                  7             0.250                     0.017         0.483
7686301      1-Apr-29        $ 297,763.05      80.00 5                  5             0.250                     0.017         0.108
7686970      1-May-29        $ 649,492.93      59.09 3                  3             0.250                     0.017         0.483
7687459      1-May-29        $ 464,628.15      72.66 5                  5             0.250                     0.017         0.358
7687735      1-May-29        $ 393,984.69      80.00 9                  9             0.250                     0.017         0.358
7687846      1-May-29        $ 342,132.90      80.00 0                  0             0.250                     0.017         0.483
7687877      1-May-29        $ 287,775.33      80.00 3                  3             0.250                     0.017         0.483
7688225      1-May-29        $ 261,790.49      80.00 9                  9             0.250                     0.017         0.358
7688274      1-May-29        $ 261,514.48      68.77 8                  8             0.250                     0.017         0.233
7688388      1-Jun-29        $ 492,000.00      80.00 0                  0             0.250                     0.017         0.108
7688451      1-Jun-29        $ 334,800.00      90.00 0                  0 33          0.250                     0.017         0.733
7688480      1-May-29        $ 272,787.04      62.76 4                  4             0.250                     0.017         0.483
7688740      1-May-29        $ 239,798.37      79.95 7                  7             0.250                     0.017         0.108
7688904      1-May-29        $ 799,327.90      57.14 0                  0             0.250                     0.017         0.108
7688958      1-May-29        $ 405,250.79      80.00 9                  9             0.250                     0.017         0.000
7689000      1-May-29        $ 250,309.39      79.52 9                  9             0.250                     0.017         0.608
7689756      1-May-29        $ 402,715.57      84.31 7                  7 33          0.250                     0.017         0.983
7689990      1-May-29        $ 999,219.91      74.35 1                  1             0.250                     0.017         0.483
7690374      1-Jun-29        $ 280,000.00      93.33 0                  0 17          0.250                     0.017         0.608
7690626      1-May-29        $ 351,725.41      63.20 1                  1             0.250                     0.017         0.483
7690638      1-May-29        $ 879,278.67      31.13 7                  7             0.250                     0.017         0.233
7690890      1-May-29        $ 314,954.11      80.00 1                  1             0.250                     0.017         0.483
7690914      1-May-29        $ 381,187.29      73.93 9                  9             0.250                     0.017         0.233
7690919      1-May-29        $ 297,279.22      79.33 2                  2             0.250                     0.017         0.733
7690963      1-May-29        $ 318,501.34      75.00 4                  4             0.250                     0.017         0.483
7691035      1-May-29        $ 367,712.92      80.00 2                  2             0.250                     0.017         0.483
7691060      1-May-29        $ 374,692.62      60.98 2                  2             0.250                     0.017         0.233
7691321      1-May-29        $ 318,778.31      95.00 1                  1 17          0.250                     0.017         0.608
7691681      1-May-29        $ 251,803.42      80.00 2                  2             0.250                     0.017         0.483
7691979      1-May-29        $ 299,760.09      66.67 9                  9             0.250                     0.017         0.358
7692519      1-May-29        $ 343,657.55      80.00 5                  5             0.250                     0.017         0.000
7692521      1-May-29        $ 283,481.64      90.00 4                  4 33          0.250                     0.017         0.108
7692962      1-May-29        $ 323,552.48      90.00 8                  8 01          0.250                     0.017         0.358
7693414      1-May-29        $ 399,687.96      61.54 6                  6             0.250                     0.017         0.483
7693423      1-May-29        $ 406,897.80      80.00 0                  0             0.250                     0.017         0.733
7693482      1-Jun-29        $ 337,560.00      80.00 0                  0             0.250                     0.017         0.000
7693792      1-May-29        $ 299,771.72      80.00 2                  2             0.250                     0.017         0.608
7693970      1-May-29        $ 511,580.32      80.00 2                  2             0.250                     0.017         0.233
7694835      1-May-29        $ 392,713.27      79.70 7                  7             0.250                     0.017         0.608
7695278      1-May-29        $ 326,657.40      68.10 0                  0             0.250                     0.017         0.733
7695333      1-May-29        $ 293,182.25      64.48 5                  5             0.250                     0.017         0.733
7696759      1-May-29        $ 312,555.98      80.00 8                  8             0.250                     0.017         0.483
7696878      1-May-29        $ 306,142.59      80.00 9                  9             0.250                     0.017         0.108
7696984      1-May-29        $ 299,765.97      80.00 7                  7             0.250                     0.017         0.483
7697129      1-May-29        $ 290,761.47      44.09 7                  7             0.250                     0.017         0.233
7697666      1-May-29        $ 269,778.68      65.06 8                  8             0.250                     0.017         0.233
7697871      1-May-29        $ 276,879.41      80.00 1                  1             0.250                     0.017         0.000
7697918      1-May-29        $ 253,906.65      79.99 5                  5             0.250                     0.017         0.608
7698176      1-May-29        $ 283,289.61      82.17 1                  1 06          0.250                     0.017         0.733
7698596      1-Jun-29        $ 540,000.00      80.00 0                  0             0.250                     0.017         0.608
7698605      1-May-29        $ 359,726.07      54.55 7                  7             0.250                     0.017         0.608
7698638      1-May-29        $ 984,192.60      57.94 0                  0             0.250                     0.017         0.233
7698764      1-May-29        $ 315,765.48      60.19 8                  8             0.250                     0.017         0.733
7698803      1-May-29        $ 479,596.74      71.86 4                  4             0.250                     0.017         0.108
7699025      1-Jun-29        $ 375,000.00      50.00 0                  0             0.250                     0.017         0.108
7699094      1-May-29        $ 974,200.80      64.57 0                  0             0.250                     0.017         0.233
7699806      1-May-29        $ 337,199.56      89.99 6                  6 01          0.250                     0.017         0.733
7700072      1-May-19        $ 314,422.34      38.18 4                  4             0.250                     0.017         0.608
7700824      1-May-29        $ 412,153.45      66.00 5                  5             0.250                     0.017         0.108
7701129      1-May-29        $ 319,750.37      72.74 7                  7             0.250                     0.017         0.483
7701311      1-Jun-29        $ 311,000.00      54.09 0                  0             0.250                     0.017         0.233
7701650      1-Jun-29        $ 285,000.00      95.00 0                  0 17          0.250                     0.017         0.733
7702625      1-May-29        $ 649,563.86      57.02 6                  6             0.250                     0.017         1.233
7703131      1-May-29        $ 313,736.20      83.62 0                  0 33          0.250                     0.017         0.108
7703241      1-May-29        $ 258,782.40      75.07 0                  0             0.250                     0.017         0.108
7703469      1-May-29        $ 281,163.59      70.00 9                  9             0.250                     0.017         0.108
7703543      1-May-29        $ 374,692.62      51.02 2                  2             0.250                     0.017         0.233
7704515      1-May-29        $ 290,778.58      57.62 8                  8             0.250                     0.017         0.608
7704552      1-May-29        $ 263,740.00      80.00 0                  0             0.250                     0.017         0.233
7704851      1-May-29        $ 449,621.95      56.62 5                  5             0.250                     0.017         0.108
7705139      1-Jun-29        $ 280,250.00      95.00 0                  0 13          0.250                     0.017         0.733
7705186      1-May-29        $ 246,816.69      95.00 9                  9 01          0.250                     0.017         0.733
7705595      1-May-29        $ 329,748.89      62.86 9                  9             0.250                     0.017         0.608
7705617      1-May-29        $ 295,569.25      85.00 5                  5 06          0.250                     0.017         0.483
7706073      1-May-29        $ 322,766.23      75.12 3                  3             0.250                     0.017         0.858
7706381      1-May-29        $ 432,961.98      71.62 8                  8             0.250                     0.017         0.483
7707109      1-May-29        $ 303,762.85      80.00 5                  5             0.250                     0.017         0.483
7707743      1-May-29        $ 399,680.13      33.33 3                  3             0.250                     0.017         0.358
7707860      1-Jun-29        $ 300,000.00      94.59 0                  0 11          0.250                     0.017         1.108
7707896      1-Jun-29        $ 337,410.00      90.00 0                  0 13          0.250                     0.017         0.358
7708305      1-Jun-29        $ 381,600.00      90.00 0                  0 01          0.250                     0.017         0.608
7708496      1-May-23        $ 302,408.06      64.43 6                  6             0.250                     0.017         0.483
7708831      1-May-29        $ 314,766.22      90.00 2                  2 33          0.250                     0.017         0.733
7709454      1-May-29        $ 649,412.39      61.61 9                  9             0.250                     0.017         0.000
7709576      1-Jun-29        $ 328,500.00      90.00 0                  0 13          0.250                     0.017         0.483
7709684      1-May-29        $ 650,399.85      62.36 5                  5             0.250                     0.017         0.233
7709755      1-May-29        $ 385,313.83      80.00 3                  3             0.250                     0.017         0.733
7710036      1-May-29        $ 279,786.94      80.00 4                  4             0.250                     0.017         0.608
7710152      1-May-29        $ 363,708.91      80.00 1                  1             0.250                     0.017         0.358
7710856      1-May-29        $ 339,760.03      57.63 3                  3             0.250                     0.017         0.983
7710988      1-May-29        $ 369,311.68      80.00 8                  8             0.250                     0.017         0.483
7711189      1-May-29        $ 439,656.75      80.00 5                  5             0.250                     0.017         0.483
7711831      1-Jun-29        $ 354,099.00      78.86 0                  0             0.250                     0.017         0.108
7711977      1-May-29        $ 319,744.10      61.54 0                  0             0.250                     0.017         0.358
7711978      1-May-29        $ 342,911.67      80.00 7                  7             0.250                     0.017         0.108
7712030      1-Jun-29        $ 500,000.00      80.00 0                  0             0.250                     0.017         0.358
7712289      1-May-29        $ 295,369.41      80.00 1                  1             0.250                     0.017         0.483
7712759      1-May-29        $ 286,981.46      80.00 6                  6             0.250                     0.017         0.608
7713061      1-Jun-29        $ 588,000.00      80.00 0                  0             0.250                     0.017         0.233
7713764      1-May-29        $ 374,714.66      62.50 6                  6             0.250                     0.017         0.608
7713871      1-May-29        $ 945,712.17      55.68 7                  7             0.250                     0.017         0.233
7713939      1-Jun-29        $ 945,000.00      78.75 0                  0             0.250                     0.017         0.733
7714282      1-May-29        $ 449,657.58      75.00 8                  8             0.250                     0.017         0.608
7714377      1-Jun-29        $ 764,000.00      80.00 0                  0             0.250                     0.017         0.608
7714589      1-Jun-29        $ 540,000.00      80.00 0                  0             0.250                     0.017         0.358
7715474      1-May-29        $ 352,981.21      90.00 1                  1 17          0.250                     0.017         0.608
7715639      1-Jun-29        $ 280,000.00      71.79 0                  0             0.250                     0.017         1.108
7715777      1-May-29        $ 302,957.54      89.99 4                  4 01          0.250                     0.017         0.358
7715797      1-May-19        $ 247,403.17      77.59 7                  7             0.250                     0.017         0.358
7716573      1-May-29        $ 297,778.84      74.50 4                  4             0.250                     0.017         0.733
7717099      1-Jun-29        $ 275,700.00      68.93 0                  0             0.250                     0.017         0.483
7717149      1-May-29        $ 416,190.90      85.00 0                  0 33          0.250                     0.017         0.733
7717191      1-Jun-29        $ 304,500.00      70.00 0                  0             0.250                     0.017         0.358
7718093      1-May-29        $ 319,744.10      80.00 0                  0             0.250                     0.017         0.358
7718428      1-Jun-29        $ 322,000.00      57.50 0                  0             0.250                     0.017         0.358
7718528      1-Jun-29        $ 369,900.00      58.71 0                  0             0.250                     0.017         0.108
7718638      1-May-29        $ 753,911.42      62.88 2                  2             0.250                     0.017         0.483
7718941      1-Jun-29        $ 300,000.00      50.00 0                  0             0.250                     0.017         0.233
7719053      1-Jun-29        $ 308,000.00      80.00 0                  0             0.250                     0.017         0.608
7719479      1-Jun-29        $ 340,000.00      72.81 0                  0             0.250                     0.017         0.000
7720136      1-May-29        $ 187,870.62      72.31 2                  2             0.250                     0.017         1.108
7720191      1-May-29        $ 447,274.58      90.00 8                  8 06          0.250                     0.017         0.000
7720225      1-May-29        $ 405,650.44      70.00 4                  4             0.250                     0.017         0.000
7720918      1-May-29        $ 295,751.32      56.38 2                  2             0.250                     0.017         0.108
7721226      1-May-29        $ 304,750.00      63.54 0                  0             0.250                     0.017         0.233
7721413      1-Jun-29        $ 455,000.00      70.00 0                  0             0.250                     0.017         0.608
7722451      1-Jun-29        $ 276,000.00      84.99 0                  0 06          0.250                     0.017         0.733
7722699      1-Jun-29        $ 385,000.00      67.54 0                  0             0.250                     0.017         0.233
7722920      1-May-29        $ 307,967.35      90.00 5                  5 06          0.250                     0.017         0.233
7723470      1-May-29        $ 335,231.70      76.77 0                  0             0.250                     0.017         0.358
7723605      1-Jun-29        $ 300,000.00      44.61 0                  0             0.250                     0.017         1.108
7723739      1-Jun-29        $ 520,000.00      80.00 0                  0             0.250                     0.017         0.233
7723892      1-May-29        $ 458,114.80      60.33 0                  0             0.250                     0.017         0.108
7724106      1-May-29        $ 529,576.17      79.94 7                  7             0.250                     0.017         0.358
7724218      1-Jun-29        $ 395,000.00      79.80 0                  0             0.250                     0.017         0.358
7724260      1-May-29        $ 126,950.89      70.00 9                  9             0.250                     0.017         0.483
7724698      1-May-29        $ 407,673.73      80.00 3                  3             0.250                     0.017         0.358
7724987      1-May-29        $ 263,418.60      89.99 0                  0 01          0.250                     0.017         1.108
7725054      1-Jun-29        $ 434,925.00      75.00 0                  0             0.250                     0.017         0.483
7725499      1-Jun-29        $ 268,000.00      69.25 0                  0             0.250                     0.017         0.233
7725529      1-May-29        $ 355,729.12      80.00 2                  2             0.250                     0.017         0.608
7725595      1-May-29        $ 449,666.03      75.00 3                  3             0.250                     0.017         0.733
7725608      1-May-29        $ 383,677.39      80.00 9                  9             0.250                     0.017         0.108
7725670      1-Jun-29        $ 875,000.00      64.81 0                  0             0.250                     0.017         0.608
7725683      1-May-29        $ 252,009.26      80.00 6                  6             0.250                     0.017         0.233
7726024      1-May-29        $ 274,584.91      95.00 1                  1 33          0.250                     0.017         0.608
7726202      1-May-29        $ 449,648.96      75.00 6                  6             0.250                     0.017         0.483
7726386      1-Jun-29        $ 360,000.00      60.00 0                  0             0.250                     0.017         0.233
7726403      1-Jun-29        $ 288,750.00      75.00 0                  0             0.250                     0.017         0.483
7726499      1-May-29        $ 277,427.97      49.58 7                  7             0.250                     0.017         0.358
7726505      1-May-29        $ 367,220.36      70.00 6                  6             0.250                     0.017         0.608
7726809      1-May-29        $ 375,684.12      80.00 2                  2             0.250                     0.017         0.108
7726878      1-May-29        $ 296,013.09      75.00 9                  9             0.250                     0.017         0.358
7727642      1-May-29        $ 392,700.96      68.35 6                  6             0.250                     0.017         0.608
7727804      1-Jun-29        $ 467,250.00      75.00 0                  0             0.250                     0.017         0.483
7728340      1-Jun-29        $ 304,628.00      79.12 0                  0             0.250                     0.017         0.608
7729343      1-May-29        $ 299,728.80      80.00 0                  0             0.250                     0.017         0.000
7729440      1-May-29        $ 274,301.33      90.00 3                  3 17          0.250                     0.017         0.858
7729557      1-May-29        $ 289,762.29      61.70 9                  9             0.250                     0.017         0.233
7729973      1-Jun-29        $ 449,900.00      59.20 0                  0             0.250                     0.017         0.358
7730085      1-May-29        $ 166,282.56      80.00 6                  6             0.250                     0.017         0.983
7730424      1-May-29        $ 632,718.19      79.15 9                  9             0.250                     0.017         0.608
7730529      1-Jun-29        $ 274,500.00      90.00 0                  0 13          0.250                     0.017         0.483
7730751      1-May-29        $ 499,590.16      69.54 6                  6             0.250                     0.017         0.233
7730942      1-May-29        $ 286,764.75      71.13 5                  5             0.250                     0.017         0.233
7731186      1-Jun-29        $ 311,250.00      75.00 0                  0             0.250                     0.017         0.233
7731579      1-May-29        $ 327,474.65      75.00 5                  5             0.250                     0.017         0.108
7731618      1-Jun-29        $ 250,000.00      66.67 0                  0             0.250                     0.017         0.000
7731651      1-May-29        $ 380,487.86      70.00 6                  6             0.250                     0.017         0.233
7731971      1-Jun-29        $ 389,000.00      50.19 0                  0             0.250                     0.017         0.608
7732327      1-Jun-29        $ 259,200.00      90.00 0                  0 17          0.250                     0.017         0.483
7734045      1-Jun-29        $ 472,000.00      69.41 0                  0             0.250                     0.017         0.108
7734074      1-Jun-29        $ 545,000.00      72.67 0                  0             0.250                     0.017         0.608
7734327      1-May-29        $ 945,643.18      80.00 8                  8             0.250                     0.017         0.358
7734533      1-Jun-29        $ 280,000.00      80.00 0                  0             0.250                     0.017         0.000
7734565      1-May-25        $ 337,624.25      68.98 5                  5             0.250                     0.017         0.358
7734979      1-Jun-29        $ 300,000.00      69.77 0                  0             0.250                     0.017         0.608
7735239      1-May-29        $ 320,936.72      90.00 2                  2 01          0.250                     0.017         0.233
7736034      1-May-29        $ 422,869.86      80.00 6                  6             0.250                     0.017         0.483
7736233      1-Jun-29        $ 324,000.00      80.00 0                  0             0.250                     0.017         0.483
7736303      1-Jun-29        $ 351,401.00      75.00 0                  0             0.250                     0.017         0.108
7736341      1-May-29        $ 389,672.36      45.61 6                  6             0.250                     0.017         0.108
7736851      1-May-29        $ 349,705.96      48.33 6                  6             0.250                     0.017         0.108
7737375      1-Jun-29        $ 752,000.00      80.00 0                  0             0.250                     0.017         0.233
7737482      1-Jun-29        $ 275,000.00      69.62 0                  0             0.250                     0.017         0.108
7737563      1-May-29        $ 558,563.92      65.00 2                  2             0.250                     0.017         0.483
7738650      1-Jun-29        $ 251,750.00      95.00 0                  0 33          0.250                     0.017         0.483
7738688      1-May-29        $ 503,606.83      64.99 3                  3             0.250                     0.017         0.483
7738816      1-May-29        $ 149,882.99      66.67 9                  9             0.250                     0.017         0.483
7739610      1-May-29        $ 267,709.76      90.00 6                  6 33          0.250                     0.017         1.358
7740281      1-Jun-29        $ 800,000.00      57.14 0                  0             0.250                     0.017         0.233
7740779      1-Jun-29        $ 600,000.00      54.55 0                  0             0.250                     0.017         0.733
7741634      1-May-29        $ 333,666.27      80.00 7                  7             0.250                     0.017         0.233
7742590      1-Jun-29        $ 328,000.00      80.00 0                  0             0.250                     0.017         0.733
7743109      1-Jun-29        $ 325,000.00      68.42 0                  0             0.250                     0.017         0.000
7744588      1-May-29        $ 444,344.38      80.00 8                  8             0.250                     0.017         0.358
7745060      1-Jun-29        $ 522,640.00      80.00 0                  0             0.250                     0.017         0.733
7745262      1-Jun-29        $ 284,000.00      80.00 0                  0             0.250                     0.017         0.358
7745295      1-Jun-29        $ 300,000.00      94.34 0                  0 13          0.250                     0.017         0.983
7745885      1-Jun-29       $ 1,000,000.00     79.05 0                  0             0.250                     0.017         0.108
7747729      1-Jun-29        $ 349,000.00      71.22 0                  0             0.250                     0.017         0.733
7747882      1-Jun-29        $ 274,400.00      80.00 0                  0             0.250                     0.017         0.608
7749357      1-Jun-29        $ 426,400.00      80.00 0                  0             0.250                     0.017         0.483
7749987      1-Jun-29        $ 295,000.00      54.63 0                  0             0.250                     0.017         0.358
7749993      1-May-29        $ 328,749.66      74.94 6                  6             0.250                     0.017         0.608
7750601      1-Jun-29        $ 332,895.00      78.33 0                  0             0.250                     0.017         0.608
7754011      1-Jun-29        $ 300,000.00      51.16 0                  0             0.250                     0.017         0.483
7755935      1-Jun-29        $ 399,200.00      80.00 0                  0             0.250                     0.017         0.233
7758519      1-Jun-29        $ 472,000.00      80.00 0                  0             0.250                     0.017         0.358
7758822      1-Jun-29        $ 450,000.00      46.39 0                  0             0.250                     0.017         0.983
7759879      1-Jun-29        $ 382,500.00      75.00 0                  0             0.250                     0.017         0.733
7761611      1-Jun-29        $ 395,500.00      70.00 0                  0             0.250                     0.017         0.858
7762430      1-Jun-29        $ 305,600.00      80.00 0                  0             0.250                     0.017         0.858
7776651      1-Jun-29        $ 500,000.00      53.49 0                  0             0.250                     0.017         0.483
7782199      1-Jun-29        $ 263,000.00      54.23 0                  0             0.250                     0.017         0.858
7791052      1-Jun-29        $ 377,600.00      80.00 0                  0             0.250                     0.017         1.108
4643081      1-Oct-22         $ 72,108.17      56.49 7                  7             0.250                     0.017         0.983
4785090      1-May-29        $ 324,733.59      78.50 9                  9             0.250                     0.017         0.233
4801065      1-Jun-29        $ 530,000.00      79.10 0                  0             0.250                     0.017         0.608
4828023      1-Jun-29        $ 275,000.00      45.91 0                  0             0.250                     0.017         0.483
4837378      1-Jun-29        $ 350,000.00      62.00 0                  0             0.250                     0.017         0.108
4844529      1-Nov-28        $ 258,657.37      80.00 7                  7             0.250                     0.017         0.858
4845900      1-Jun-29        $ 270,000.00      75.00 0                  0             0.250                     0.017         0.358
4848055      1-Jun-29        $ 473,200.00      80.00 0                  0             0.250                     0.017         0.483
4850523      1-Jun-29        $ 250,000.00      75.05 0                  0             0.250                     0.017         0.733
4851685      1-Jun-29        $ 396,000.00      63.87 0                  0             0.250                     0.017         0.233
4853775      1-Mar-29        $ 519,978.59      74.47 9                  9             0.250                     0.017         0.108
4866388      1-Oct-28        $ 278,201.39      79.99 9                  9             0.250                     0.017         0.733
4866607      1-May-29        $ 349,306.29      80.00 9                  9             0.250                     0.017         0.108
4868764      1-May-29        $ 242,899.68      89.99 8                  8 17          0.250                     0.017         0.233
4872103      1-May-29        $ 360,274.35      80.00 5                  5             0.250                     0.017         0.000
4881077      1-Oct-28        $ 298,130.16      75.00 6                  6             0.250                     0.017         0.608
4882250      1-Sep-28        $ 276,435.47      80.00 7                  7             0.250                     0.017         0.583
4888980      1-Jun-29        $ 310,000.00      46.97 0                  0             0.250                     0.017         0.233
4893295      1-Jun-29        $ 400,000.00      52.63 0                  0             0.250                     0.017         0.000
4898743      1-Nov-28        $ 387,524.92      65.00 2                  2             0.250                     0.017         0.483
4898799      1-Dec-28        $ 298,676.28      65.22 8                  8             0.250                     0.017         0.858
4900438      1-Nov-28        $ 343,128.15      65.71 5                  5             0.250                     0.017         0.608
4901752      1-Nov-28        $ 283,375.91      75.00 1                  1             0.250                     0.017         0.358
4909747      1-May-29        $ 299,760.09      59.58 9                  9             0.250                     0.017         0.358
4910020      1-Nov-28        $ 541,120.13      80.00 3                  3             0.250                     0.017         0.733
4917266      1-Nov-28        $ 389,876.14      90.00 4                  4 33          0.250                     0.017         0.983
4917360      1-May-19        $ 459,116.95      79.17 5                  5             0.250                     0.017         0.233
4925498      1-Jun-29        $ 337,500.00      80.00 0                  0             0.250                     0.017         0.000
4926158      1-Jun-29        $ 300,000.00      93.75 0                  0 06          0.250                     0.017         0.858
4927442      1-Nov-28        $ 131,254.32      80.00 2                  2             0.250                     0.017         0.483
4927619      1-Mar-29        $ 281,903.12      85.64 2                  2 33          0.250                     0.017         0.858
4929148      1-Nov-28        $ 256,837.34      79.54 4                  4             0.250                     0.017         0.000
4930597      1-Jan-29        $ 327,071.25      80.00 5                  5             0.250                     0.017         0.358
4931152      1-Jun-29        $ 479,000.00      59.88 0                  0             0.250                     0.017         1.108
4931338      1-Dec-28        $ 272,359.46      89.99 6                  6 06          0.250                     0.017         0.108
4933391      1-Mar-29        $ 264,776.04      90.00 4                  4 11          0.250                     0.017         0.000
4933899      1-May-29        $ 283,284.27      90.00 7                  7 33          0.250                     0.017         0.608
4934866      1-May-29        $ 251,793.43      80.00 3                  3             0.250                     0.017         0.233
4934998      1-Dec-28        $ 282,617.94      79.97 4                  4             0.250                     0.017         0.358
4937013      1-Jan-29        $ 318,440.37      76.19 7                  7             0.250                     0.017         0.733
4937889      1-May-29        $ 278,747.78      90.00 8                  8 33          0.250                     0.017         0.000
4939879      1-Jun-29        $ 600,000.00      67.80 0                  0             0.250                     0.017         0.233
4940569      1-Dec-28        $ 148,693.48      80.00 8                  8             0.250                     0.017         0.483
4940807      1-Jun-29        $ 398,000.00      54.52 0                  0             0.250                     0.017         0.358
4942673      1-Dec-28        $ 211,884.15      80.00 5                  5             0.250                     0.017         0.983
4949126      1-May-29        $ 269,778.68      90.00 8                  8 06          0.250                     0.017         0.233
4950160      1-Feb-29        $ 296,017.64      90.00 4                  4 12          0.250                     0.017         0.233
4951328      1-Jun-29        $ 400,000.00      53.69 0                  0             0.250                     0.017         0.358
4951509      1-Jun-29        $ 382,900.00      78.95 0                  0             0.250                     0.017         0.483
4952126      1-Jan-29        $ 207,178.83      80.00 3                  3             0.250                     0.017         0.483
4953714      1-May-29        $ 449,640.15      75.00 5                  5             0.250                     0.017         0.358
4953780      1-Jan-29        $ 200,823.46      80.00 6                  6             0.250                     0.017         0.608
4956473      1-Mar-29        $ 449,412.79      80.00 9                  9             0.250                     0.017         0.358
4958592      1-Dec-28        $ 264,736.00      89.86 0                  0 33          0.250                     0.017         0.483
4958810      1-Mar-29        $ 271,127.72      90.00 2                  2 24          0.250                     0.017         0.233
4961907      1-Jun-29        $ 246,750.00      80.00 0                  0             0.250                     0.017         0.733
4962287      1-May-29        $ 287,758.04      80.00 4                  4             0.250                     0.017         0.108
4964607      1-Feb-29        $ 437,368.47      75.00 7                  7             0.250                     0.017         0.483
4965725      1-May-19        $ 363,322.20      70.00 0                  0             0.250                     0.017         0.483
4965781      1-May-29        $ 424,468.61      80.91 1                  1 17          0.250                     0.017         0.483
4966914      1-Feb-29        $ 304,510.15      80.00 5                  5             0.250                     0.017         0.358
4968094      1-May-29        $ 338,754.64      69.90 4                  4             0.250                     0.017         0.858
4968405      1-Apr-29         $ 99,854.78      33.11 8                  8             0.250                     0.017         0.858
4968521      1-Jun-29        $ 500,000.00      68.98 0                  0             0.250                     0.017         0.000
4968811      1-Jun-29        $ 400,000.00      56.34 0                  0             0.250                     0.017         0.358
4968905      1-Jun-29        $ 650,000.00      76.16 0                  0             0.250                     0.017         0.233
4969177      1-Jun-29        $ 292,000.00      48.67 0                  0             0.250                     0.017         0.483
4969508      1-Jan-24        $ 350,034.44      80.43 4                  4             0.250                     0.017         0.233
4970119      1-Apr-29        $ 256,118.08      67.50 8                  8             0.250                     0.017         0.733
4970295      1-Jun-29        $ 350,000.00      87.50 0                  0 17          0.250                     0.017         0.233
4971307      1-Jun-29        $ 601,000.00      79.97 0                  0             0.250                     0.017         0.358
4971399      1-Feb-29        $ 231,287.32      80.00 2                  2             0.250                     0.017         0.608
4971944      1-May-29        $ 283,278.84      90.00 4                  4 01          0.250                     0.017         0.483
4972864      1-Jun-29        $ 262,400.00      80.00 0                  0             0.250                     0.017         0.233
4973682      1-May-29        $ 312,755.82      76.34 2                  2             0.250                     0.017         0.483
4974273      1-Apr-29        $ 449,329.97      58.06 7                  7             0.250                     0.017         0.733
4974629      1-May-29        $ 466,053.86      74.99 6                  6             0.250                     0.017         0.733
4974989      1-Mar-29        $ 294,305.43      67.82 3                  3             0.250                     0.017         0.483
4975085      1-May-29        $ 346,529.46      80.00 6                  6             0.250                     0.017         0.483
4975539      1-Jun-29        $ 296,000.00      80.00 0                  0             0.250                     0.017         0.358
4975578      1-Mar-29        $ 420,821.17      68.62 7                  7             0.250                     0.017         0.000
4975866      1-Jun-19        $ 303,000.00      75.37 0                  0             0.250                     0.017         0.108
4976753      1-May-29        $ 194,855.28      75.00 8                  8             0.250                     0.017         0.733
4976776      1-Apr-29        $ 279,528.17      66.51 7                  7             0.250                     0.017         0.108
4977384      1-May-29        $ 399,687.96      89.89 6                  6 01          0.250                     0.017         0.483
4977488      1-Apr-29        $ 334,475.75      76.14 5                  5             0.250                     0.017         0.483
4977544      1-Jun-29        $ 300,000.00      52.59 0                  0             0.250                     0.017         0.358
4977546      1-Jun-29        $ 565,000.00      66.47 0                  0             0.250                     0.017         0.000
4977961      1-May-29        $ 394,676.22      79.80 2                  2             0.250                     0.017         0.233
4978300      1-Jun-29        $ 251,900.00      90.00 0                  0 01          0.250                     0.017         0.108
4979145      1-May-29        $ 518,774.41      80.00 1                  1             0.250                     0.017         0.233
4979574      1-Jun-29        $ 404,400.00      74.99 0                  0             0.250                     0.017         0.858
4979727      1-Apr-29        $ 474,256.66      79.70 6                  6             0.250                     0.017         0.483
4979797      1-May-29        $ 334,732.10      60.36 0                  0             0.250                     0.017         0.358
4980261      1-May-29        $ 986,230.05      34.03 5                  5             0.250                     0.017         0.483
4980524      1-Jun-29        $ 260,000.00      80.00 0                  0             0.250                     0.017         0.483
4980733      1-Apr-29        $ 347,369.10      79.09 0                  0             0.250                     0.017         0.000
4981183      1-Jun-29        $ 260,000.00      89.35 0                  0 17          0.250                     0.017         0.000
4981310      1-May-29        $ 444,626.14      79.18 4                  4             0.250                     0.017         0.108
4981440      1-Apr-29        $ 274,989.94      90.00 4                  4 01          0.250                     0.017         0.733
4982087      1-May-29        $ 299,735.32      80.00 2                  2             0.250                     0.017         0.000
4982323      1-Jun-29        $ 500,000.00      69.44 0                  0             0.250                     0.017         0.483
4982575      1-Jun-29        $ 459,000.00      76.50 0                  0             0.250                     0.017         0.733
4983069      1-May-29        $ 194,851.62      45.88 2                  2             0.250                     0.017         0.608
4984178      1-Apr-29        $ 278,552.45      81.50 5                  5 11          0.250                     0.017         0.358
4984218      1-Jun-29        $ 380,000.00      80.00 0                  0             0.250                     0.017         0.483
4984755      1-May-29        $ 120,907.93      37.81 3                  3             0.250                     0.017         0.608
4984849      1-May-29        $ 379,688.52      80.00 2                  2             0.250                     0.017         0.233
4985491      1-May-29        $ 377,198.12      72.25 2                  2             0.250                     0.017         0.358
4985532      1-Jun-29        $ 650,000.00      59.09 0                  0             0.250                     0.017         0.000
4985703      1-Apr-29        $ 311,487.03      79.99 3                  3             0.250                     0.017         0.233
4985922      1-Jun-29        $ 450,000.00      56.25 0                  0             0.250                     0.017         0.358
4985932      1-Jun-29        $ 500,000.00      52.63 0                  0             0.250                     0.017         0.358
4985946      1-Jun-29        $ 550,000.00      63.22 0                  0             0.250                     0.017         0.233
4986289      1-May-29        $ 299,754.09      79.12 9                  9             0.250                     0.017         0.233
4986361      1-Jun-29        $ 302,250.00      75.00 0                  0             0.250                     0.017         0.483
4986888      1-May-29        $ 648,921.09      69.95 9                  9             0.250                     0.017         0.108
4987189      1-Jun-29        $ 350,000.00      64.83 0                  0             0.250                     0.017         0.358
4987344      1-May-29        $ 403,660.59      80.00 9                  9             0.250                     0.017         0.108
4987387      1-May-29        $ 274,424.87      80.00 7                  7             0.250                     0.017         0.233
4987391      1-Mar-29        $ 289,317.22      79.89 2                  2             0.250                     0.017         0.483
4987449      1-Jun-29        $ 543,300.00      80.00 0                  0             0.250                     0.017         0.358
4987529      1-May-29        $ 649,467.20      34.53 0                  0             0.250                     0.017         0.233
4987803      1-May-29        $ 288,774.55      52.55 5                  5             0.250                     0.017         0.483
4987815      1-May-29        $ 267,915.83      75.00 3                  3             0.250                     0.017         0.483
4988000      1-May-29        $ 259,792.08      80.00 8                  8             0.250                     0.017         0.358
4988039      1-Jun-29        $ 296,000.00      80.00 0                  0             0.250                     0.017         0.233
4988119      1-Jun-29        $ 280,000.00      80.00 0                  0             0.250                     0.017         0.233
4988204      1-May-29        $ 299,747.96      63.16 6                  6             0.250                     0.017         0.108
4988303      1-May-29        $ 319,710.71      70.06 1                  1             0.250                     0.017         0.000
4988724      1-May-29        $ 391,686.52      80.00 2                  2             0.250                     0.017         0.358
4988803      1-Aug-28        $ 377,983.34      79.96 4                  4             0.250                     0.017         0.608
4989155      1-May-29        $ 271,598.28      90.00 8                  8 12          0.250                     0.017         0.733
4989287      1-May-29        $ 494,594.25      66.44 5                  5             0.250                     0.017         0.233
4989483      1-May-29        $ 285,765.56      66.82 6                  6             0.250                     0.017         0.233
4989518      1-Apr-29        $ 279,550.86      70.00 6                  6             0.250                     0.017         0.358
4990003      1-Apr-29        $ 394,381.86      79.00 6                  6             0.250                     0.017         0.483
4990063      1-Apr-29        $ 364,628.49      80.00 9                  9             0.250                     0.017         0.483
4990146      1-May-29        $ 299,765.97      36.14 7                  7             0.250                     0.017         0.483
4990197      1-May-29        $ 367,712.92      66.91 2                  2             0.250                     0.017         0.483
4990215      1-Jun-29        $ 479,450.00      80.00 0                  0             0.250                     0.017         0.000
4990359      1-Jan-29        $ 299,519.20      78.87 0                  0             0.250                     0.017         0.483
4990402      1-Jun-29        $ 268,000.00      80.00 0                  0             0.250                     0.017         0.358
4990521      1-May-29        $ 637,002.69      75.00 9                  9             0.250                     0.017         0.483
4990639      1-Jun-29        $ 269,950.00      89.99 0                  0 01          0.250                     0.017         0.233
4990645      1-May-29        $ 460,412.87      80.00 7                  7             0.250                     0.017         0.108
4990816      1-Jun-29        $ 348,000.00      80.00 0                  0             0.250                     0.017         0.483
4991057      1-May-29        $ 303,768.68      83.75 8                  8             0.250                     0.017         0.608
4991272      1-May-29        $ 394,899.28      80.00 8                  8             0.250                     0.017         0.608
4991526      1-May-29        $ 427,657.73      80.00 3                  3             0.250                     0.017         0.358
4991880      1-May-29        $ 295,774.77      80.00 7                  7             0.250                     0.017         0.608
4992181      1-Jun-29        $ 340,000.00      80.00 0                  0             0.250                     0.017         0.483
4992185      1-May-29        $ 290,784.03      62.58 3                  3             0.250                     0.017         0.733
4992433      1-May-29        $ 349,733.67      57.85 7                  7             0.250                     0.017         0.608
4992623      1-May-29        $ 282,879.15      79.99 5                  5             0.250                     0.017         0.483
4992981      1-Jun-29        $ 350,000.00      63.75 0                  0             0.250                     0.017         0.108
4993137      1-Jun-19        $ 273,750.00      57.03 0                  0             0.250                     0.017         0.858
4993164      1-May-29        $ 304,762.07      69.79 7                  7             0.250                     0.017         0.483
4993197      1-Jun-29        $ 419,200.00      80.00 0                  0             0.250                     0.017         0.608
4993199      1-May-29        $ 374,660.99      75.00 9                  9             0.250                     0.017         0.000
4993200      1-May-29        $ 447,675.75      64.00 5                  5             0.250                     0.017         0.858
4993272      1-Jun-29        $ 278,000.00      74.13 0                  0             0.250                     0.017         0.608
4993427      1-Jun-29        $ 296,500.00      66.63 0                  0             0.250                     0.017         0.233
4993456      1-Jun-29        $ 451,500.00      70.00 0                  0             0.250                     0.017         0.233
4993480      1-May-29        $ 263,998.97      79.99 7                  7             0.250                     0.017         0.608
4993620      1-May-29        $ 330,142.25      80.00 5                  5             0.250                     0.017         0.483
4993868      1-May-29        $ 494,863.66      79.24 6                  6             0.250                     0.017         0.483
4993922      1-May-29        $ 649,267.79      70.00 9                  9             0.250                     0.017         0.733
4994328      1-Jun-29        $ 325,800.00      90.00 0                  0 33          0.250                     0.017         0.108
4994451      1-May-29        $ 331,627.94      80.00 4                  4             0.250                     0.017         0.233
4994585      1-Jun-29        $ 440,000.00      78.22 0                  0             0.250                     0.017         0.983
4994627      1-May-29        $ 383,700.44      80.00 4                  4             0.250                     0.017         0.483
4994724      1-May-29        $ 261,380.22      80.00 2                  2             0.250                     0.017         0.108
4994751      1-Apr-29        $ 277,065.73      75.00 3                  3             0.250                     0.017         0.483
4994772      1-Jun-29        $ 300,000.00      82.19 0                  0 06          0.250                     0.017         0.483
4994846      1-May-29        $ 398,656.47      70.00 7                  7             0.250                     0.017         0.000
4994906      1-May-29        $ 499,619.54      80.00 4                  4             0.250                     0.017         0.608
4994999      1-May-29        $ 463,180.90      80.00 0                  0             0.250                     0.017         0.000
4995384      1-May-29        $ 649,505.40      76.59 0                  0             0.250                     0.017         0.608
4995449      1-May-29        $ 299,771.72      68.03 2                  2             0.250                     0.017         0.608
4995468      1-May-29        $ 378,904.18      80.00 8                  8             0.250                     0.017         0.483
4995685      1-May-29        $ 284,633.25      90.00 5                  5             0.250                     0.017         0.608
4995709      1-Mar-29         $ 91,766.81      77.97 1                  1             0.250                     0.017         0.108
4995872      1-May-29        $ 174,849.33      33.02 3                  3             0.250                     0.017         0.000
4995874      1-Jun-29        $ 388,750.00      79.34 0                  0             0.250                     0.017         0.108
4995906      1-May-29        $ 322,448.26      49.65 6                  6             0.250                     0.017         0.483
4995955      1-Jun-29        $ 300,000.00      63.29 0                  0             0.250                     0.017         0.108
4995990      1-May-29        $ 272,797.39      69.77 9                  9             0.250                     0.017         0.733
4996142      1-Apr-29        $ 399,374.03      80.00 3                  3             0.250                     0.017         0.483
4996421      1-May-29        $ 259,797.17      80.00 7                  7             0.250                     0.017         0.483
4996513      1-May-29        $ 999,219.90      58.65 0                  0             0.250                     0.017         0.483
4996709      1-May-29        $ 154,884.90      65.96 0                  0             0.250                     0.017         0.858
4996726      1-May-29        $ 449,266.33      80.00 3                  3             0.250                     0.017         0.733
4996785      1-Feb-29        $ 294,546.32      75.00 2                  2             0.250                     0.017         0.358
4996799      1-May-29        $ 309,726.50      51.67 0                  0             0.250                     0.017         0.000
4996824      1-Jan-29        $ 243,984.05      76.56 5                  5             0.250                     0.017         0.233
4996901      1-May-29        $ 269,784.08      68.35 8                  8             0.250                     0.017         0.358
4996904      1-Jun-29        $ 271,200.00      80.00 0                  0             0.250                     0.017         0.483
4997061      1-May-29        $ 404,659.76      66.94 6                  6             0.250                     0.017         0.108
4997130      1-Jun-29        $ 405,000.00      75.00 0                  0             0.250                     0.017         0.483
4997134      1-Jun-29        $ 308,000.00      80.00 0                  0             0.250                     0.017         0.608
4997172      1-Jun-29        $ 327,600.00      80.00 0                  0             0.250                     0.017         0.608
4997217      1-Jun-29        $ 575,000.00      47.92 0                  0             0.250                     0.017         0.358
4997266      1-Jun-29        $ 338,000.00      65.00 0                  0             0.250                     0.017         0.233
4997344      1-May-29        $ 287,775.33      80.00 3                  3             0.250                     0.017         0.483
4997354      1-Jun-29        $ 332,800.00      80.00 0                  0             0.250                     0.017         0.108
4997710      1-Apr-29        $ 319,486.68      80.00 8                  8             0.250                     0.017         0.358
4997732      1-May-29        $ 273,811.43      83.03 3                  3 06          0.250                     0.017         1.108
4997735      1-May-29        $ 470,900.27      65.00 7                  7             0.250                     0.017         0.733
4997744      1-May-29        $ 269,773.17      78.19 7                  7             0.250                     0.017         0.108
4997768      1-May-29        $ 299,771.72      64.52 2                  2             0.250                     0.017         0.608
4997813      1-May-29        $ 336,230.90      87.40 0                  0 06          0.250                     0.017         0.358
4997890      1-Jun-29        $ 290,000.00      75.32 0                  0             0.250                     0.017         0.608
4998013      1-May-29        $ 408,513.05      80.00 5                  5             0.250                     0.017         0.358
4998072      1-May-29        $ 275,789.98      80.00 8                  8             0.250                     0.017         0.608
4998162      1-May-29        $ 487,619.30      80.00 0                  0             0.250                     0.017         0.483
4998190      1-May-29        $ 334,931.94      80.00 4                  4             0.250                     0.017         0.358
4998347      1-May-29        $ 301,258.89      90.00 9                  9 01          0.250                     0.017         0.358
4998461      1-Jun-29        $ 442,480.00      80.00 0                  0             0.250                     0.017         0.733
4998481      1-May-29        $ 374,707.46      34.09 6                  6             0.250                     0.017         0.483
4998530      1-May-29        $ 962,267.23      62.13 3                  3             0.250                     0.017         0.608
4999041      1-May-29        $ 258,543.08      75.00 8                  8             0.250                     0.017         0.358
4999047      1-Apr-29        $ 337,430.45      60.79 5                  5             0.250                     0.017         0.108
4999057      1-May-29        $ 314,783.22      90.00 2                  2 33          0.250                     0.017         1.108
4999164      1-Jun-29        $ 333,000.00      90.00 0                  0 06          0.250                     0.017         0.108
4999244      1-May-29        $ 311,762.59      80.00 9                  9             0.250                     0.017         0.608
4999263      1-May-29        $ 359,712.11      80.00 1                  1             0.250                     0.017         0.358
4999446      1-May-29        $ 346,522.67      79.99 7                  7             0.250                     0.017         0.358
4999488      1-May-29        $ 315,771.29      75.96 9                  9             0.250                     0.017         0.858
4999523      1-May-29        $ 599,520.18      56.21 8                  8             0.250                     0.017         0.358
4999664      1-May-29        $ 299,765.97      67.42 7                  7             0.250                     0.017         0.483
4999787      1-Jun-29        $ 462,000.00      69.47 0                  0             0.250                     0.017         0.358
5000006      1-May-29        $ 299,235.75      76.79 5                  5             0.250                     0.017         0.000
5000028      1-Mar-28        $ 288,422.51      72.35 1                  1             0.250                     0.017         0.483
5000137      1-May-29        $ 366,813.63      80.00 3                  3             0.250                     0.017         0.483
5000176      1-May-29        $ 308,470.90      90.00 0                  0 13          0.250                     0.017         0.733
5000246      1-May-29        $ 303,768.68      80.00 8                  8             0.250                     0.017         0.608
5000297      1-May-29        $ 367,712.92      80.00 2                  2             0.250                     0.017         0.483
5000437      1-Nov-25        $ 343,831.31      77.11 1                  1             0.250                     0.017         0.483
5000450      1-May-29        $ 243,700.07      76.96 7                  7             0.250                     0.017         0.233
5000560      1-Jun-29        $ 420,000.00      70.00 0                  0             0.250                     0.017         0.108
5000576      1-Mar-29        $ 140,468.51      80.00 1                  1             0.250                     0.017         0.483
5000584      1-Jun-29        $ 510,000.00      51.00 0                  0             0.250                     0.017         0.000
5000588      1-Mar-29         $ 82,210.73      80.00 3                  3             0.250                     0.017         0.608
5000626      1-May-29        $ 268,795.31      48.91 1                  1             0.250                     0.017         0.608
5000738      1-Jun-29        $ 275,000.00      68.75 0                  0             0.250                     0.017         0.608
5000772      1-May-29        $ 345,316.71      80.00 1                  1             0.250                     0.017         0.233
5000788      1-May-29        $ 378,996.67      79.98 7                  7             0.250                     0.017         0.358
5000905      1-Mar-29         $ 48,828.92      79.98 2                  2             0.250                     0.017         0.233
5000974      1-Jun-29        $ 284,000.00      80.00 0                  0             0.250                     0.017         0.000
5000976      1-Jun-29        $ 289,900.00      83.30 0                  0 17          0.250                     0.017         0.608
5001132      1-Jun-29        $ 500,000.00      54.05 0                  0             0.250                     0.017         0.000
5001211      1-Jun-29        $ 373,000.00      63.44 0                  0             0.250                     0.017         0.000
5001346      1-Jun-29        $ 450,000.00      78.26 0                  0             0.250                     0.017         0.000
5001372      1-May-29        $ 369,204.12      61.67 2                  2             0.250                     0.017         0.358
5001383      1-Apr-29        $ 351,449.15      80.00 5                  5             0.250                     0.017         0.483
5001397      1-Jun-29        $ 475,000.00      57.58 0                  0             0.250                     0.017         0.608
5001497      1-May-29        $ 262,200.34      80.00 4                  4             0.250                     0.017         0.608
5001585      1-May-29        $ 646,442.95      59.91 5                  5             0.250                     0.017         0.000
5001623      1-Jun-29        $ 636,200.00      70.69 0                  0             0.250                     0.017         0.358
5001701      1-Jun-29        $ 248,000.00      67.95 0                  0             0.250                     0.017         0.000
5001713      1-May-29        $ 422,045.13      80.00 3                  3             0.250                     0.017         0.108
5001783      1-May-29        $ 326,204.85      81.63 5                  5 33          0.250                     0.017         0.000
5001808      1-May-29        $ 293,059.58      89.73 8                  8 17          0.250                     0.017         0.233
5001816      1-May-29        $ 336,362.42      90.00 2                  2 33          0.250                     0.017         0.983
5001993      1-May-29        $ 439,665.20      46.03 0                  0             0.250                     0.017         0.608
5002122      1-Jun-29        $ 300,000.00      80.00 0                  0             0.250                     0.017         0.358
5002123      1-May-29        $ 287,775.33      80.00 3                  3             0.250                     0.017         0.483
5002200      1-Jun-29        $ 247,000.00      77.21 0                  0             0.250                     0.017         0.483
5002224      1-May-29        $ 258,448.23      52.79 3                  3             0.250                     0.017         0.483
5002251      1-May-29        $ 388,296.85      90.00 5                  5 01          0.250                     0.017         0.483
5002320      1-May-29        $ 649,394.79      79.27 9                  9             0.250                     0.017         0.608
5002334      1-Apr-29        $ 359,436.62      80.00 2                  2             0.250                     0.017         0.483
5002424      1-May-29        $ 435,642.61      78.42 1                  1             0.250                     0.017         0.233
5002437      1-May-29        $ 268,784.88      79.59 8                  8             0.250                     0.017         0.358
5002507      1-May-29        $ 256,604.59      80.00 9                  9             0.250                     0.017         0.608
5002549      1-Jun-29        $ 495,000.00      64.71 0                  0             0.250                     0.017         0.000
5002559      1-May-19        $ 309,386.62      45.55 2                  2             0.250                     0.017         0.000
5002627      1-Jun-29        $ 242,150.00      95.00 0                  0 17          0.250                     0.017         0.233
5002700      1-May-29        $ 345,295.08      86.40 8                  8 33          0.250                     0.017         0.000
5002772      1-Jun-29        $ 375,000.00      68.81 0                  0             0.250                     0.017         0.358
5002779      1-May-29        $ 599,495.92      54.55 2                  2             0.250                     0.017         0.108
5002784      1-Feb-28        $ 287,015.64      80.00 4                  4             0.250                     0.017         0.483
5002789      1-May-29        $ 374,714.65      75.00 5                  5             0.250                     0.017         0.608
5002793      1-Jun-29        $ 350,000.00      77.78 0                  0             0.250                     0.017         0.233
5002894      1-Jun-29        $ 630,000.00      69.69 0                  0             0.250                     0.017         0.358
5002931      1-May-29        $ 194,862.36      73.58 6                  6             0.250                     0.017         0.983
5003027      1-May-29        $ 553,556.97      69.25 7                  7             0.250                     0.017         0.358
5003048      1-May-29        $ 558,314.12      75.00 2                  2             0.250                     0.017         0.483
5003064      1-May-29        $ 314,741.79      63.00 9                  9             0.250                     0.017         0.233
5003100      1-May-29        $ 435,659.88      80.00 8                  8             0.250                     0.017         0.483
5003128      1-May-29        $ 286,687.08      95.00 8                  8 01          0.250                     0.017         0.733
5003165      1-Jun-29        $ 857,000.00      68.56 0                  0             0.250                     0.017         0.483
5003168      1-Jun-29        $ 299,000.00      69.53 0                  0             0.250                     0.017         0.233
5003246      1-Jun-29         $ 80,000.00      52.29 0                  0             0.250                     0.017         0.858
5003261      1-Jun-29        $ 255,600.00      90.00 0                  0 01          0.250                     0.017         0.733
5003368      1-Apr-19        $ 270,386.19      89.87 9                  9 01          0.250                     0.017         0.483
5003372      1-Apr-29        $ 256,597.83      79.96 3                  3             0.250                     0.017         0.483
5003432      1-Jun-29        $ 520,000.00      80.00 0                  0             0.250                     0.017         0.108
5003464      1-May-29        $ 245,398.68      73.31 8                  8             0.250                     0.017         0.233
5003529      1-May-29        $ 289,768.09      68.24 9                  9             0.250                     0.017         0.358
5003557      1-May-29        $ 734,440.72      72.06 2                  2             0.250                     0.017         0.608
5003624      1-May-29        $ 330,935.14      79.62 4                  4             0.250                     0.017         0.358
5003630      1-May-29        $ 339,341.58      79.91 8                  8             0.250                     0.017         0.608
5003735      1-Jun-29        $ 355,000.00      78.91 0                  0             0.250                     0.017         0.000
5003749      1-Jun-29        $ 331,200.00      80.00 0                  0             0.250                     0.017         0.233
5003811      1-Apr-29        $ 276,266.97      89.98 7                  7 24          0.250                     0.017         0.483
5003884      1-May-29        $ 284,244.46      75.00 6                  6             0.250                     0.017         0.483
5003908      1-May-29        $ 255,805.20      72.11 0                  0             0.250                     0.017         0.608
5004030      1-Jun-29        $ 265,600.00      80.00 0                  0             0.250                     0.017         0.483
5004055      1-May-29        $ 252,017.46      79.79 6                  6             0.250                     0.017         0.858
5004160      1-May-29        $ 349,733.67      49.30 7                  7             0.250                     0.017         0.608
5004274      1-Jun-29        $ 350,785.00      80.00 0                  0             0.250                     0.017         0.233
5004305      1-Jun-29        $ 273,000.00      69.11 0                  0             0.250                     0.017         0.858
5004336      1-Jun-29        $ 100,000.00      37.88 0                  0             0.250                     0.017         0.733
5004346      1-Jun-29        $ 256,800.00      80.00 0                  0             0.250                     0.017         0.233
5004574      1-May-29        $ 296,937.78      80.00 8                  8             0.250                     0.017         0.000
5004637      1-May-19        $ 449,149.19      64.75 9                  9             0.250                     0.017         0.358
5004760      1-May-29        $ 299,760.09      80.00 9                  9             0.250                     0.017         0.358
5004855      1-May-29        $ 455,644.27      80.00 7                  7             0.250                     0.017         0.483
5004885      1-May-29        $ 249,405.29      80.00 9                  9             0.250                     0.017         0.483
5004891      1-May-29        $ 249,410.07      79.87 7                  7             0.250                     0.017         0.608
5004934      1-May-29        $ 323,747.24      80.00 4                  4             0.250                     0.017         0.483
5004935      1-May-29        $ 599,495.92      65.93 2                  2             0.250                     0.017         0.108
5004936      1-Jun-29        $ 380,000.00      69.09 0                  0             0.250                     0.017         0.483
5004983      1-Jun-29        $ 372,000.00      80.00 0                  0             0.250                     0.017         0.233
5005026      1-May-29        $ 412,685.74      70.00 4                  4             0.250                     0.017         0.608
5005273      1-May-29        $ 694,430.31      52.85 1                  1             0.250                     0.017         0.233
5005318      1-May-29        $ 332,253.24      70.00 4                  4             0.250                     0.017         0.733
5005390      1-May-29        $ 346,715.57      58.22 7                  7             0.250                     0.017         0.233
5005557      1-May-29        $ 351,069.02      70.27 2                  2             0.250                     0.017         0.358
5005598      1-May-29        $ 293,776.28      79.46 8                  8             0.250                     0.017         0.608
5005777      1-May-29        $ 469,614.74      80.00 4                  4             0.250                     0.017         0.233
5005837      1-Jun-29        $ 412,500.00      75.00 0                  0             0.250                     0.017         0.483
5005909      1-May-29        $ 828,103.49      65.00 9                  9             0.250                     0.017         0.483
5005937      1-May-29        $ 399,663.95      68.38 5                  5             0.250                     0.017         0.108
5005941      1-Jun-29        $ 412,000.00      80.00 0                  0             0.250                     0.017         0.108
5006026      1-May-29        $ 125,161.60      75.00 0                  0             0.250                     0.017         0.983
5006029      1-May-29        $ 899,297.91      52.02 1                  1             0.250                     0.017         0.483
5006076      1-Jun-29        $ 312,000.00      65.68 0                  0             0.250                     0.017         0.483
5006184      1-Jun-29        $ 850,000.00      47.35 0                  0             0.250                     0.017         0.608
5006250      1-May-29        $ 273,775.40      60.89 0                  0             0.250                     0.017         0.233
5006387      1-May-29        $ 391,709.07      78.40 7                  7             0.250                     0.017         0.733
5006419      1-Apr-29        $ 374,398.46      83.33 6                  6 06          0.250                     0.017         0.358
5006443      1-Jun-19        $ 434,454.22      79.00 2                  2             0.250                     0.017         0.000
5006478      1-Jun-29        $ 255,000.00      75.00 0                  0             0.250                     0.017         0.608
5006570      1-Jun-29        $ 385,000.00      49.04 0                  0             0.250                     0.017         0.608
5006789      1-May-29        $ 315,613.57      89.99 7                  7 11          0.250                     0.017         0.983
5006831      1-May-29        $ 664,518.69      59.38 9                  9             0.250                     0.017         0.858
5006852      1-Apr-29        $ 341,314.89      80.00 9                  9             0.250                     0.017         0.108
5006906      1-May-29        $ 279,786.94      74.67 4                  4             0.250                     0.017         0.608
5007202      1-May-29        $ 315,753.49      80.00 9                  9             0.250                     0.017         0.483
5007264      1-May-29        $ 259,797.17      63.03 7                  7             0.250                     0.017         0.483
5007293      1-May-29        $ 499,600.15      22.36 5                  5             0.250                     0.017         0.358
5007384      1-Jun-29        $ 360,000.00      52.94 0                  0             0.250                     0.017         0.233
5007411      1-May-29        $ 261,785.24      76.50 4                  4             0.250                     0.017         0.233
5007430      1-May-29        $ 246,757.35      95.00 5                  5 11          0.250                     0.017         0.483
5007447      1-Jun-29        $ 385,000.00      66.72 0                  0             0.250                     0.017         0.108
5007462      1-May-29        $ 312,250.09      76.97 9                  9             0.250                     0.017         0.358
5007476      1-Jun-29        $ 392,000.00      70.00 0                  0             0.250                     0.017         0.358
5007502      1-May-29        $ 271,782.49      72.53 9                  9             0.250                     0.017         0.358
5007540      1-May-29        $ 313,336.54      80.00 4                  4             0.250                     0.017         0.108
5007586      1-May-29        $ 455,661.58      80.00 8                  8             0.250                     0.017         0.733
5007589      1-Jun-29        $ 400,000.00      68.14 0                  0             0.250                     0.017         0.608
5007602      1-Jun-29        $ 289,250.00      80.00 0                  0             0.250                     0.017         0.483
5007607      1-Apr-29        $ 553,111.32      68.33 2                  2             0.250                     0.017         0.358
5007624      1-Jun-29        $ 344,700.00      79.61 0                  0             0.250                     0.017         0.483
5007628      1-Apr-29        $ 268,589.36      66.57 6                  6             0.250                     0.017         0.608
5007647      1-Jun-29        $ 382,250.00      58.36 0                  0             0.250                     0.017         0.233
5007682      1-May-29        $ 290,943.08      80.00 8                  8             0.250                     0.017         0.000
5007747      1-Mar-29        $ 191,444.98      80.00 8                  8             0.250                     0.017         0.358
5007784      1-May-29        $ 487,599.99      71.76 9                  9             0.250                     0.017         0.233
5007787      1-May-29        $ 327,681.18      69.04 8                  8             0.250                     0.017         0.233
5007790      1-May-29        $ 430,929.94      73.09 4                  4             0.250                     0.017         0.733
5007804      1-Apr-29        $ 295,513.32      80.00 2                  2             0.250                     0.017         0.233
5007834      1-May-29        $ 274,774.58      69.62 8                  8             0.250                     0.017         0.233
5007977      1-Jun-29        $ 499,900.00      70.41 0                  0             0.250                     0.017         0.358
5008084      1-Apr-29        $ 244,353.46      94.98 6                  6 06          0.250                     0.017         0.983
5008091      1-May-29        $ 387,681.95      80.00 5                  5             0.250                     0.017         0.233
5008185      1-May-29        $ 281,774.49      18.19 9                  9             0.250                     0.017         0.358
5008302      1-May-29        $ 319,750.36      61.66 6                  6             0.250                     0.017         0.483
5008344      1-May-29        $ 269,778.68      59.34 8                  8             0.250                     0.017         0.233
5008362      1-May-29        $ 335,731.30      80.00 0                  0             0.250                     0.017         0.358
5008570      1-May-29        $ 315,771.29      68.70 9                  9             0.250                     0.017         0.858
5008592      1-Jun-29        $ 500,000.00      67.96 0                  0             0.250                     0.017         0.108
5008635      1-Jun-29        $ 759,500.00      70.00 0                  0             0.250                     0.017         0.608
5008658      1-May-29        $ 329,742.56      67.35 6                  6             0.250                     0.017         0.483
5008781      1-Jun-29        $ 328,000.00      80.00 0                  0             0.250                     0.017         0.858
5008828      1-Jun-29        $ 328,000.00      75.40 0                  0             0.250                     0.017         0.233
5008915      1-May-29        $ 471,622.55      80.00 5                  5             0.250                     0.017         0.358
5008916      1-May-29        $ 299,754.09      76.92 9                  9             0.250                     0.017         0.233
5008961      1-May-29        $ 321,436.30      69.18 0                  0             0.250                     0.017         0.233
5009151      1-May-29         $ 77,947.66      70.27 6                  6             0.250                     0.017         1.233
5009240      1-May-29        $ 360,725.31      41.02 1                  1             0.250                     0.017         0.608
5009357      1-May-29        $ 499,628.93      76.93 3                  3             0.250                     0.017         0.733
5009510      1-May-29        $ 284,783.13      77.03 3                  3             0.250                     0.017         0.608
5009614      1-Jun-29        $ 504,000.00      80.00 0                  0             0.250                     0.017         0.733
5009617      1-Apr-29        $ 319,499.24      80.00 4                  4             0.250                     0.017         0.483
5009849      1-May-29        $ 387,689.72      80.00 2                  2             0.250                     0.017         0.358
5009876      1-May-29        $ 283,778.44      80.00 4                  4             0.250                     0.017         0.483
5009927      1-May-29        $ 252,792.43      84.33 3                  3 17          0.250                     0.017         0.483
5010012      1-May-29        $ 275,810.05      86.25 5                  5 06          0.250                     0.017         1.108
5010036      1-May-29        $ 315,740.98      79.20 8                  8             0.250                     0.017         0.233
5010108      1-May-29        $ 320,978.95      89.97 5                  5 01          0.250                     0.017         1.108
5010134      1-May-29        $ 292,777.05      57.45 5                  5             0.250                     0.017         0.608
5010166      1-May-29        $ 349,726.96      68.23 6                  6             0.250                     0.017         0.483
5010211      1-May-29        $ 338,192.96      69.07 6                  6             0.250                     0.017         0.483
5010242      1-May-29        $ 314,748.09      49.22 9                  9             0.250                     0.017         0.358
5010287      1-May-29        $ 332,733.71      90.00 1                  1 24          0.250                     0.017         0.358
5010315      1-Jun-29        $ 347,500.00      34.75 0                  0             0.250                     0.017         0.983
5010498      1-May-29        $ 259,786.88      74.29 8                  8             0.250                     0.017         0.233
5010567      1-May-29        $ 499,609.94      65.36 4                  4             0.250                     0.017         0.483
5010662      1-May-29        $ 414,368.36      66.89 6                  6             0.250                     0.017         0.358
5010729      1-May-29        $ 314,741.79      63.00 9                  9             0.250                     0.017         0.233
5010754      1-May-29        $ 441,238.02      70.10 2                  2             0.250                     0.017         0.233
5010758      1-May-29        $ 443,636.05      69.92 5                  5             0.250                     0.017         0.233
5010790      1-May-29        $ 264,777.36      72.60 6                  6             0.250                     0.017         0.108
5010794      1-Apr-29        $ 458,214.89      90.00 9                  9 33          0.250                     0.017         0.733
5010800      1-May-29        $ 399,680.12      80.00 2                  2             0.250                     0.017         0.358
5010824      1-Jun-29        $ 345,000.00      75.00 0                  0             0.250                     0.017         0.233
5010853      1-May-29        $ 301,552.61      74.98 1                  1             0.250                     0.017         0.233
5010882      1-May-29        $ 415,683.46      80.00 6                  6             0.250                     0.017         0.608
5010886      1-May-29        $ 339,214.77      70.00 7                  7             0.250                     0.017         0.108
5011009      1-May-29        $ 647,442.08      80.00 8                  8             0.250                     0.017         0.000
5011075      1-May-29        $ 339,741.28      44.48 8                  8             0.250                     0.017         0.608
5011214      1-May-29        $ 259,781.56      80.00 6                  6             0.250                     0.017         0.108
5011388      1-Jun-29        $ 650,000.00      59.09 0                  0             0.250                     0.017         0.000
5011460      1-May-29        $ 649,505.40      61.90 0                  0             0.250                     0.017         0.608
5011476      1-May-29        $ 461,212.19      72.13 9                  9             0.250                     0.017         0.108
5011640      1-Jun-29        $ 300,000.00      69.36 0                  0             0.250                     0.017         0.000
5011709      1-Jun-29        $ 300,000.00      53.57 0                  0             0.250                     0.017         0.483
5011757      1-May-29        $ 449,648.95      75.00 5                  5             0.250                     0.017         0.483
5011803      1-May-29        $ 337,223.35      90.00 5                  5 11          0.250                     0.017         0.233
5011822      1-May-29        $ 251,793.43      90.00 3                  3 06          0.250                     0.017         0.233
5011838      1-Jun-29        $ 323,000.00      88.99 0                  0 11          0.250                     0.017         0.608
5011844      1-May-29        $ 490,126.76      57.71 6                  6             0.250                     0.017         0.608
5011989      1-May-29        $ 414,676.25      58.04 5                  5             0.250                     0.017         0.483
5012036      1-May-29        $ 399,703.14      83.33 4                  4 01          0.250                     0.017         0.733
5012063      1-Jun-29        $ 292,000.00      80.00 0                  0             0.250                     0.017         0.733
5012143      1-May-29        $ 899,315.17      55.21 7                  7             0.250                     0.017         0.608
5012154      1-May-29        $ 599,457.59      49.38 9                  9             0.250                     0.017         0.000
5012192      1-May-29        $ 325,764.05      69.36 5                  5             0.250                     0.017         0.858
5012229      1-May-29        $ 326,001.75      75.00 5                  5             0.250                     0.017         0.608
5012352      1-Jun-29        $ 343,500.00      69.39 0                  0             0.250                     0.017         0.858
5012376      1-May-29        $ 267,945.96      67.04 6                  6             0.250                     0.017         0.608
5012474      1-Jun-29        $ 260,900.00      94.98 0                  0 33          0.250                     0.017         0.858
5012511      1-May-29        $ 649,505.40      54.39 0                  0             0.250                     0.017         0.608
5012598      1-May-29        $ 310,763.35      74.94 5                  5             0.250                     0.017         0.608
5012661      1-May-29        $ 250,827.26      86.55 6                  6 06          0.250                     0.017         1.108
5012668      1-May-29        $ 427,657.73      80.00 3                  3             0.250                     0.017         0.358
5012724      1-May-29        $ 292,771.43      89.88 3                  3 11          0.250                     0.017         0.483
5012792      1-Jun-29        $ 272,000.00      68.43 0                  0             0.250                     0.017         0.000
5012941      1-Jun-29        $ 350,000.00      58.33 0                  0             0.250                     0.017         0.000
5013000      1-May-29        $ 384,692.12      79.38 2                  2             0.250                     0.017         0.358
5013002      1-May-29        $ 259,786.88      80.00 8                  8             0.250                     0.017         0.233
5013066      1-May-29        $ 749,354.26      42.86 6                  6             0.250                     0.017         0.000
5013102      1-May-29        $ 303,750.81      80.00 1                  1             0.250                     0.017         0.233
5013195      1-Jun-29        $ 330,000.00      76.74 0                  0             0.250                     0.017         0.483
5013340      1-Jun-29        $ 420,000.00      60.39 0                  0             0.250                     0.017         0.108
5013605      1-Jun-29        $ 500,000.00      66.23 0                  0             0.250                     0.017         0.733
5013635      1-Jun-29        $ 264,500.00      75.57 0                  0             0.250                     0.017         0.733
5013675      1-May-29        $ 447,623.63      80.00 3                  3             0.250                     0.017         0.108
5013817      1-May-29        $ 248,705.84      89.99 4                  4 11          0.250                     0.017         0.483
5013822      1-May-29        $ 276,957.50      89.42 0                  0 17          0.250                     0.017         0.483
5014003      1-May-29        $ 299,747.96      63.16 6                  6             0.250                     0.017         0.108
5014053      1-May-29        $ 455,644.27      80.00 7                  7             0.250                     0.017         0.483
5014192      1-May-29        $ 294,152.67      80.00 7                  7             0.250                     0.017         0.108
5014223      1-May-29        $ 323,777.02      72.00 2                  2             0.250                     0.017         1.108
5014264      1-Jun-29        $ 145,500.00      54.29 0                  0             0.250                     0.017         0.608
5014291      1-May-29        $ 299,765.97      65.93 7                  7             0.250                     0.017         0.483
5014296      1-May-29        $ 347,707.63      80.00 3                  3             0.250                     0.017         0.108
5014313      1-Jun-29        $ 280,000.00      41.79 0                  0             0.250                     0.017         0.358
5014355      1-May-29        $ 315,753.49      80.00 9                  9             0.250                     0.017         0.483
5014417      1-Jun-29        $ 715,000.00      32.50 0                  0             0.250                     0.017         0.608
5014420      1-May-29        $ 501,588.51      80.00 1                  1             0.250                     0.017         0.233
5014460      1-May-29        $ 324,740.10      77.38 0                  0             0.250                     0.017         0.358
5014489      1-Apr-29        $ 349,410.23      60.87 3                  3             0.250                     0.017         0.108
5014512      1-May-29        $ 345,730.09      65.28 9                  9             0.250                     0.017         0.483
5014516      1-Jun-29        $ 272,000.00      85.00 0                  0 17          0.250                     0.017         0.733
5014538      1-May-29        $ 252,287.86      75.94 6                  6             0.250                     0.017         0.108
5014551      1-May-29        $ 349,759.13      56.45 3                  3             0.250                     0.017         1.108
5014614      1-May-29        $ 359,719.16      69.90 6                  6             0.250                     0.017         0.483
5014713      1-Jun-29        $ 332,000.00      78.12 0                  0             0.250                     0.017         1.233
5014719      1-Jun-29        $ 435,000.00      61.40 0                  0             0.250                     0.017         0.483
5014769      1-May-29        $ 307,288.38      75.00 8                  8             0.250                     0.017         1.108
5014814      1-May-29        $ 649,467.20      51.59 0                  0             0.250                     0.017         0.233
5014827      1-May-29        $ 277,777.69      69.50 9                  9             0.250                     0.017         0.358
5014959      1-May-29        $ 370,344.95      79.99 5                  5             0.250                     0.017         1.108
5015142      1-May-29        $ 719,424.22      74.23 2                  2             0.250                     0.017         0.358
5015149      1-May-29        $ 370,096.38      80.00 8                  8             0.250                     0.017         0.233
5015174      1-May-29        $ 599,508.18      80.00 8                  8             0.250                     0.017         0.233
5015295      1-Jun-29         $ 50,400.00      70.00 0                  0             0.250                     0.017         0.983
5015327      1-May-29        $ 669,477.33      64.73 3                  3             0.250                     0.017         0.483
5015457      1-May-29        $ 736,425.07      29.48 7                  7             0.250                     0.017         0.483
5015471      1-May-29        $ 549,514.74      69.18 4                  4             0.250                     0.017         0.000
5015519      1-May-29        $ 489,598.35      75.50 5                  5             0.250                     0.017         0.233
5015543      1-May-29        $ 249,414.76      64.02 6                  6             0.250                     0.017         0.733
5015577      1-May-29        $ 313,729.65      69.78 5                  5             0.250                     0.017         0.000
5015583      1-May-29        $ 302,769.44      54.01 4                  4             0.250                     0.017         0.608
5015585      1-Jun-29        $ 279,600.00      77.24 0                  0             0.250                     0.017         0.233
5015652      1-May-29        $ 302,751.63      75.75 3                  3             0.250                     0.017         0.233
5015657      1-Jun-29        $ 278,000.00      80.00 0                  0             0.250                     0.017         0.108
5015668      1-Jun-29        $ 448,000.00      80.00 0                  0             0.250                     0.017         1.233
5015678      1-May-29        $ 279,802.37      80.00 7                  7             0.250                     0.017         0.983
5015725      1-Jun-29        $ 500,000.00      80.00 0                  0             0.250                     0.017         0.358
5015727      1-May-29        $ 449,631.13      79.93 3                  3             0.250                     0.017         0.233
5015924      1-Jun-29        $ 248,000.00      68.32 0                  0             0.250                     0.017         0.233
5015952      1-Jun-29        $ 306,000.00      90.00 0                  0 01          0.250                     0.017         0.358
5016032      1-May-29        $ 275,762.36      80.00 6                  6             0.250                     0.017         0.000
5016034      1-May-29        $ 284,798.84      75.00 4                  4             0.250                     0.017         0.983
5016051      1-May-29        $ 308,740.39      67.32 9                  9             0.250                     0.017         0.108
5016059      1-May-29        $ 299,317.91      90.82 1                  1 11          0.250                     0.017         0.233
5016063      1-May-29        $ 261,790.48      62.09 8                  8             0.250                     0.017         0.358
5016074      1-May-29        $ 363,716.04      62.98 4                  4             0.250                     0.017         0.483
5016102      1-Jun-29        $ 400,000.00      39.02 0                  0             0.250                     0.017         0.108
5016114      1-May-29        $ 356,721.51      36.84 1                  1             0.250                     0.017         0.483
5016145      1-May-29        $ 489,627.15      66.22 5                  5             0.250                     0.017         0.608
5016146      1-Apr-29         $ 73,478.99      80.00 9                  9             0.250                     0.017         0.233
5016165      1-Jun-29        $ 332,000.00      69.89 0                  0             0.250                     0.017         0.733
5016173      1-May-29        $ 379,696.11      59.84 1                  1             0.250                     0.017         0.358
5016252      1-May-29        $ 271,777.04      80.00 4                  4             0.250                     0.017         0.233
5016260      1-Jun-29        $ 360,000.00      73.92 0                  0             0.250                     0.017         0.233
5016316      1-May-29        $ 349,713.11      78.48 1                  1             0.250                     0.017         0.233
5016324      1-Jun-29        $ 251,350.00      89.82 0                  0 17          0.250                     0.017         0.000
5016350      1-May-29        $ 269,794.54      64.59 4                  4             0.250                     0.017         0.608
5016355      1-May-29        $ 272,787.03      60.40 3                  3             0.250                     0.017         0.483
5016356      1-Jun-29        $ 281,200.00      90.00 0                  0 12          0.250                     0.017         0.733
5016376      1-Jun-29        $ 338,000.00      38.63 0                  0             0.250                     0.017         0.608
5016444      1-Jun-29        $ 385,500.00      59.22 0                  0             0.250                     0.017         0.233
5016476      1-May-29        $ 369,704.12      45.96 2                  2             0.250                     0.017         0.358
5016481      1-May-29        $ 326,551.33      68.80 3                  3             0.250                     0.017         0.608
5016482      1-Jun-29        $ 264,000.00      75.43 0                  0             0.250                     0.017         0.233
5016486      1-May-29        $ 251,803.41      56.63 1                  1             0.250                     0.017         0.483
5016494      1-May-29        $ 315,740.97      60.19 7                  7             0.250                     0.017         0.233
5016522      1-Jun-29        $ 390,600.00      63.51 0                  0             0.250                     0.017         0.608
5016526      1-May-29        $ 451,601.21      80.00 1                  1             0.250                     0.017         0.000
5016561      1-Jun-29        $ 269,000.00      89.67 0                  0 17          0.250                     0.017         0.233
5016565      1-May-29        $ 556,496.46      59.57 6                  6             0.250                     0.017         0.000
5016573      1-Jun-29        $ 290,000.00      33.96 0                  0             0.250                     0.017         0.608
5016598      1-May-29        $ 390,079.98      47.90 8                  8             0.250                     0.017         0.233
5016606      1-Jun-29        $ 300,000.00      69.77 0                  0             0.250                     0.017         0.233
5016760      1-Apr-29        $ 269,467.05      90.00 5                  5 01          0.250                     0.017         0.358
5016766      1-Jun-29        $ 288,800.00      80.00 0                  0             0.250                     0.017         0.000
5016768      1-Jun-19        $ 335,000.00      69.79 0                  0             0.250                     0.017         0.608
5016771      1-Apr-29        $ 303,048.11      89.95 1                  1 13          0.250                     0.017         0.733
5016786      1-Jun-29        $ 275,000.00      51.59 0                  0             0.250                     0.017         0.483
5016790      1-Apr-29        $ 279,528.19      80.00 9                  9             0.250                     0.017         0.108
5016805      1-May-29        $ 923,364.10      54.35 0                  0             0.250                     0.017         1.108
5016825      1-May-29        $ 299,771.72      71.60 2                  2             0.250                     0.017         0.608
5016828      1-Apr-29        $ 282,568.00      79.05 0                  0             0.250                     0.017         0.608
5016835      1-Jun-29        $ 344,000.00      80.00 0                  0             0.250                     0.017         0.000
5016945      1-May-29        $ 310,925.43      80.00 3                  3             0.250                     0.017         0.000
5016946      1-May-29        $ 314,248.49      59.34 9                  9             0.250                     0.017         0.358
5016950      1-May-29        $ 351,618.59      80.00 9                  9             0.250                     0.017         0.358
5016973      1-Jun-29        $ 355,000.00      61.74 0                  0             0.250                     0.017         0.108
5016997      1-May-29        $ 329,755.09      76.74 9                  9             0.250                     0.017         0.733
5017018      1-Jun-29        $ 900,000.00      68.18 0                  0             0.250                     0.017         0.108
5017029      1-May-29        $ 287,780.85      30.97 5                  5             0.250                     0.017         0.608
5017040      1-Mar-29        $ 299,257.96      37.50 6                  6             0.250                     0.017         0.233
5017066      1-Apr-29        $ 277,065.74      69.38 4                  4             0.250                     0.017         0.483
5017068      1-May-29        $ 316,752.71      74.94 1                  1             0.250                     0.017         0.483
5017085      1-May-29        $ 297,761.69      73.58 9                  9             0.250                     0.017         0.358
5017088      1-May-29        $ 278,482.58      79.63 8                  8             0.250                     0.017         0.483
5017234      1-Apr-29        $ 309,902.09      80.00 9                  9             0.250                     0.017         0.358
5017251      1-Apr-29        $ 475,217.38      80.00 8                  8             0.250                     0.017         0.233
5017258      1-May-29        $ 291,772.21      80.00 1                  1             0.250                     0.017         0.483
5017271      1-Apr-29        $ 261,550.15      88.80 5                  5 17          0.250                     0.017         0.608
5017272      1-Mar-29        $ 381,007.77      73.46 7                  7             0.250                     0.017         0.000
5017284      1-Apr-29        $ 264,553.44      60.23 4                  4             0.250                     0.017         0.108
5017286      1-May-29        $ 365,707.32      65.36 2                  2             0.250                     0.017         0.358
5017308      1-May-29        $ 419,672.35      49.12 5                  5             0.250                     0.017         0.483
5017344      1-May-29         $ 99,921.99      71.94 9                  9             0.250                     0.017         0.483
5017413      1-Jun-29        $ 409,500.00      70.00 0                  0             0.250                     0.017         0.108
5017420      1-May-29        $ 471,150.08      84.95 8                  8 11          0.250                     0.017         0.733
5017451      1-Jun-29        $ 550,000.00      64.71 0                  0             0.250                     0.017         0.108
5017513      1-May-29        $ 549,549.16      68.75 6                  6             0.250                     0.017         0.233
5017627      1-May-19        $ 284,461.15      49.83 5                  5             0.250                     0.017         0.358
5017647      1-Jun-29        $ 262,500.00      70.00 0                  0             0.250                     0.017         0.483
5017788      1-May-29        $ 339,235.16      69.29 6                  6             0.250                     0.017         0.483
5017799      1-Jun-29        $ 344,500.00      79.93 0                  0             0.250                     0.017         0.733
5017829      1-Jun-29        $ 312,000.00      80.00 0                  0             0.250                     0.017         0.358
5017834      1-Jun-29        $ 369,000.00      57.21 0                  0             0.250                     0.017         0.483
5017839      1-Jun-29        $ 292,000.00      80.00 0                  0             0.250                     0.017         0.358
5017849      1-May-29        $ 282,677.67      61.96 7                  7             0.250                     0.017         0.483
5017875      1-Jun-29        $ 490,000.00      52.69 0                  0             0.250                     0.017         0.000
5017890      1-Jun-29        $ 356,650.00      70.00 0    GD 3YR 0                    0.250                     0.017         0.108
5017897      1-May-29        $ 496,602.55      66.27 5                  5             0.250                     0.017         0.358
5017908      1-Jun-29        $ 280,000.00      65.88 0                  0             0.250                     0.017         0.483
5017935      1-Jun-29        $ 265,500.00      75.00 0                  0             0.250                     0.017         0.608
5017957      1-May-29        $ 361,731.34      77.85 4                  4             0.250                     0.017         0.733
5017970      1-May-29        $ 317,758.02      76.63 2                  2             0.250                     0.017         0.608
5018004      1-Jun-29        $ 310,000.00      79.28 0                  0             0.250                     0.017         0.733
5018021      1-Jun-29        $ 800,000.00      60.61 0                  0             0.250                     0.017         0.000
5018032      1-May-29        $ 299,477.58      67.35 8                  8             0.250                     0.017         0.733
5018053      1-May-29        $ 264,803.33      79.10 3                  3             0.250                     0.017         0.733
5018085      1-May-29        $ 260,786.06      90.00 6                  6 01          0.250                     0.017         0.233
5018112      1-Jun-29        $ 303,000.00      76.71 0                  0             0.250                     0.017         0.733
5018141      1-Jun-29        $ 520,000.00      80.00 0                  0             0.250                     0.017         0.608
5018148      1-May-29        $ 281,041.26      75.00 6                  6             0.250                     0.017         0.733
5018160      1-Jun-29        $ 439,000.00      60.14 0                  0             0.250                     0.017         0.483
5018164      1-Jun-29        $ 299,200.00      80.00 0                  0             0.250                     0.017         0.483
5018173      1-May-29        $ 274,585.47      69.97 7                  7             0.250                     0.017         0.483
5018187      1-May-29        $ 280,758.06      74.93 6                  6             0.250                     0.017         0.000
5018210      1-May-29        $ 354,729.87      56.80 7                  7             0.250                     0.017         0.608
5018283      1-May-29        $ 314,754.27      75.00 7                  7             0.250                     0.017         0.483
5018335      1-May-29        $ 308,908.83      53.77 3                  3             0.250                     0.017         0.483
5018349      1-May-29        $ 472,530.60      68.00 0                  0             0.250                     0.017         0.483
5018364      1-Jun-29        $ 259,500.00      79.85 0                  0             0.250                     0.017         0.358
5018382      1-Apr-29        $ 318,621.32      70.00 2                  2             0.250                     0.017         0.000
5018385      1-Apr-29        $ 299,575.15      78.95 5                  5             0.250                     0.017         0.983
5018403      1-Apr-29        $ 254,590.96      69.67 6                  6             0.250                     0.017         0.358
5018405      1-Apr-29        $ 355,442.90      80.00 0                  0             0.250                     0.017         0.483
5018411      1-Apr-29        $ 281,159.33      90.00 3                  3 06          0.250                     0.017         0.483
5018433      1-Jun-29        $ 355,000.00      74.74 0                  0             0.250                     0.017         0.608
5018450      1-Apr-29        $ 269,556.07      37.24 7                  7             0.250                     0.017         0.233
5018468      1-Jun-29        $ 360,000.00      57.97 0                  0             0.250                     0.017         0.000
5018470      1-Apr-29        $ 296,557.78      90.00 8                  8 12          0.250                     0.017         0.733
5018479      1-Apr-29        $ 439,328.34      80.00 4                  4             0.250                     0.017         0.608
5018509      1-Apr-29        $ 164,536.49      76.72 9                  9             0.250                     0.017         0.608
5018518      1-Apr-29        $ 219,664.16      80.00 6                  6             0.250                     0.017         0.608
5018590      1-Jun-29        $ 500,000.00      60.98 0                  0             0.250                     0.017         0.608
5018606      1-May-29        $ 262,794.83      51.27 3                  3             0.250                     0.017         0.483
5018621      1-May-29        $ 280,780.79      75.95 9                  9             0.250                     0.017         0.483
5018631      1-May-29        $ 271,698.11      79.99 1                  1             0.250                     0.017         0.000
5018634      1-May-29        $ 649,480.20      63.35 0                  0             0.250                     0.017         0.358
5018636      1-Jun-29        $ 280,000.00      65.12 0                  0             0.250                     0.017         0.000
5018682      1-Jun-29        $ 360,000.00      75.00 0                  0             0.250                     0.017         0.608
5018695      1-May-29        $ 399,672.12      61.54 2                  2             0.250                     0.017         0.233
5018711      1-Jun-29        $ 380,000.00      69.09 0                  0             0.250                     0.017         0.358
5018713      1-May-29        $ 369,704.12      60.66 2                  2             0.250                     0.017         0.358
5018747      1-May-29        $ 649,426.51      65.00 1                  1             0.250                     0.017         0.000
5018748      1-May-29        $ 471,622.54      80.00 4                  4             0.250                     0.017         0.358
5018789      1-May-29        $ 609,512.19      69.71 9                  9             0.250                     0.017         0.358
5018794      1-Jun-29        $ 320,000.00      68.09 0                  0             0.250                     0.017         1.233
5018798      1-May-29        $ 247,756.57      79.99 7                  7             0.250                     0.017         0.483
5018873      1-Jun-29        $ 650,000.00      67.01 0                  0             0.250                     0.017         0.983
5018885      1-Jun-29        $ 400,000.00      67.80 0                  0             0.250                     0.017         0.000
5018887      1-May-29        $ 321,722.76      67.79 6                  6             0.250                     0.017         0.000
5018912      1-May-29        $ 266,425.98      66.91 8                  8             0.250                     0.017         0.108
5018915      1-Jun-29        $ 228,000.00      49.57 0                  0             0.250                     0.017         0.483
5018960      1-Jun-29        $ 408,000.00      68.00 0                  0             0.250                     0.017         0.233
5019081      1-May-29        $ 391,678.68      80.00 8                  8             0.250                     0.017         0.233
5019172      1-Apr-29        $ 271,574.35      80.00 5                  5             0.250                     0.017         0.483
5019174      1-May-29        $ 281,757.20      80.00 0                  0             0.250                     0.017         0.000
5019191      1-Jun-29        $ 335,000.00      62.62 0                  0             0.250                     0.017         0.608
5019209      1-Jun-29        $ 264,000.00      80.00 0                  0             0.250                     0.017         0.483
5019243      1-May-29        $ 434,685.15      69.60 5                  5             0.250                     0.017         0.858
5019263      1-May-29        $ 285,787.74      61.51 4                  4             0.250                     0.017         0.733
5019278      1-May-29        $ 452,646.62      62.48 2                  2             0.250                     0.017         0.483
5019295      1-Jun-29         $ 66,500.00      89.99 0                  0 06          0.250                     0.017         0.108
5019311      1-Jun-29        $ 364,100.00      77.47 0                  0             0.250                     0.017         0.358
5019320      1-May-29        $ 450,139.73      55.07 3                  3             0.250                     0.017         0.358
5019333      1-May-29        $ 304,762.07      73.49 7                  7             0.250                     0.017         0.483
5019340      1-Jun-29        $ 346,000.00      69.90 0                  0             0.250                     0.017         0.483
5019351      1-May-29        $ 274,795.91      58.52 1                  1             0.250                     0.017         0.733
5019387      1-Jun-29        $ 290,000.00      46.77 0                  0             0.250                     0.017         0.108
5019398      1-Mar-29        $ 299,293.65      73.17 5                  5             0.250                     0.017         0.483
5019420      1-Jun-29        $ 308,000.00      71.63 0                  0             0.250                     0.017         1.108
5019466      1-May-29        $ 277,783.12      65.41 2                  2             0.250                     0.017         0.483
5019479      1-Jun-29        $ 292,000.00      80.00 0                  0             0.250                     0.017         0.000
5019483      1-Jun-29        $ 325,000.00      62.08 0                  0             0.250                     0.017         0.358
5019528      1-Jun-29        $ 265,000.00      67.60 0                  0             0.250                     0.017         0.358
5019553      1-May-29        $ 258,982.24      80.00 4                  4             0.250                     0.017         0.108
5019586      1-Jun-29        $ 268,550.00      73.58 0                  0             0.250                     0.017         0.108
5019619      1-May-29        $ 280,769.66      61.76 6                  6             0.250                     0.017         0.233
5019620      1-Jun-29        $ 340,000.00      69.39 0                  0             0.250                     0.017         0.233
5019639      1-Jun-29        $ 448,000.00      80.00 0                  0             0.250                     0.017         0.233
5019648      1-May-29        $ 251,812.97      63.16 7                  7             0.250                     0.017         0.733
5019649      1-May-29        $ 998,294.91      52.58 1                  1             0.250                     0.017         0.983
5019669      1-Jun-29        $ 500,000.00      55.56 0                  0             0.250                     0.017         0.358
5019677      1-Jun-29        $ 460,000.00      69.70 0                  0             0.250                     0.017         0.000
5019679      1-May-29        $ 551,568.60      67.03 0                  0             0.250                     0.017         0.483
5019687      1-May-29        $ 329,225.90      68.45 0                  0             0.250                     0.017         0.483
5019706      1-Jun-29        $ 400,000.00      64.52 0                  0             0.250                     0.017         0.358
5019750      1-Jun-29        $ 263,960.00      80.00 0                  0             0.250                     0.017         0.733
5019865      1-Jun-29        $ 200,000.00      31.01 0                  0             0.250                     0.017         0.733
5019894      1-Jun-29        $ 290,250.00      90.00 0                  0 11          0.250                     0.017         0.608
5019938      1-Jun-29        $ 311,200.00      80.00 0                  0             0.250                     0.017         0.233
5019947      1-May-29        $ 339,741.28      80.00 8                  8             0.250                     0.017         0.608
5019957      1-Jun-29        $ 265,000.00      55.79 0                  0             0.250                     0.017         0.483
5019964      1-May-29        $ 439,621.16      42.31 6                  6             0.250                     0.017         0.000
5020064      1-May-29        $ 308,740.39      77.44 9                  9             0.250                     0.017         0.108
5020099      1-Jun-29        $ 400,000.00      80.00 0                  0             0.250                     0.017         0.358
5020105      1-May-29        $ 279,265.18      69.99 8                  8             0.250                     0.017         0.108
5020122      1-Jun-29        $ 350,000.00      58.33 0                  0             0.250                     0.017         0.233
5020174      1-May-29        $ 283,783.90      80.00 0                  0             0.250                     0.017         0.608
5020241      1-Jun-29        $ 250,000.00      72.46 0                  0             0.250                     0.017         0.733
5020263      1-May-29        $ 408,722.88      55.65 8                  8             0.250                     0.017         0.358
5020280      1-Jun-29        $ 850,000.00      61.15 0                  0             0.250                     0.017         0.358
5020308      1-Jun-29        $ 319,000.00      74.19 0                  0             0.250                     0.017         0.358
5020311      1-Mar-29        $ 350,695.43      78.22 3                  3             0.250                     0.017         0.000
5020373      1-Jun-29        $ 350,000.00      59.12 0                  0             0.250                     0.017         0.000
5020455      1-May-29        $ 267,790.93      80.00 3                  3             0.250                     0.017         0.483
5020513      1-Mar-29        $ 307,106.93      71.63 3                  3             0.250                     0.017         0.000
5020528      1-May-29        $ 371,687.47      59.81 7                  7             0.250                     0.017         0.108
5020549      1-Apr-29        $ 357,425.74      80.00 4                  4             0.250                     0.017         0.358
5020592      1-Jun-29        $ 300,000.00      63.69 0                  0             0.250                     0.017         0.000
5020596      1-May-29        $ 162,981.95      74.99 5                  5             0.250                     0.017         0.858
5020622      1-Jun-29        $ 275,000.00      64.71 0                  0             0.250                     0.017         0.233
5020658      1-May-29        $ 490,366.97      80.00 7                  7             0.250                     0.017         0.000
5020692      1-Jun-29        $ 257,400.00      51.48 0                  0             0.250                     0.017         0.233
5020707      1-Jun-29        $ 338,000.00      56.33 0                  0             0.250                     0.017         0.358
5020809      1-Jun-29        $ 450,000.00      69.77 0                  0             0.250                     0.017         0.358
5020842      1-May-29        $ 281,419.14      79.99 4                  4             0.250                     0.017         0.233
5020879      1-May-29        $ 466,817.04      80.00 4                  4             0.250                     0.017         0.233
5020880      1-Jun-29        $ 316,800.00      80.00 0                  0             0.250                     0.017         0.000
5020926      1-Jun-29        $ 393,300.00      80.00 0                  0             0.250                     0.017         0.358
5020927      1-Jun-29        $ 346,000.00      69.90 0                  0             0.250                     0.017         0.483
5020963      1-Jun-29        $ 290,000.00      69.05 0                  0             0.250                     0.017         0.608
5021029      1-May-29        $ 539,523.57      60.00 7                  7             0.250                     0.017         0.000
5021053      1-May-29        $ 549,549.16      68.75 6                  6             0.250                     0.017         0.233
5021060      1-Jun-29        $ 365,000.00      78.33 0                  0             0.250                     0.017         1.233
5021067      1-May-29        $ 299,266.36      46.72 6                  6             0.250                     0.017         0.483
5021070      1-Jun-29        $ 308,000.00      77.97 0                  0             0.250                     0.017         0.483
5021091      1-Jun-29        $ 315,000.00      53.39 0                  0             0.250                     0.017         0.483
5021154      1-Jun-29        $ 281,000.00      48.87 0                  0             0.250                     0.017         0.000
5021163      1-Jun-29        $ 422,000.00      64.92 0                  0             0.250                     0.017         0.233
5021193      1-May-29        $ 550,548.35      36.73 5                  5             0.250                     0.017         0.233
5021236      1-Jun-29        $ 448,000.00      77.91 0                  0             0.250                     0.017         1.233
5021268      1-Jun-29        $ 370,000.00      74.75 0                  0             0.250                     0.017         1.358
5021269      1-Jun-29        $ 808,500.00      70.00 0                  0             0.250                     0.017         0.733
5021287      1-May-29        $ 324,746.46      66.06 6                  6             0.250                     0.017         0.483
5021292      1-May-29        $ 524,610.37      75.00 7                  7             0.250                     0.017         0.733
5021323      1-May-29        $ 257,798.73      44.10 3                  3             0.250                     0.017         0.483
5021342      1-May-29        $ 492,895.64      57.70 4                  4             0.250                     0.017         0.233
5021398      1-May-29        $ 297,112.21      95.00 1                  1 06          0.250                     0.017         0.358
5021404      1-May-29        $ 283,872.64      58.62 4                  4             0.250                     0.017         0.358
5021411      1-Jun-29        $ 370,000.00      61.56 0                  0             0.250                     0.017         0.108
5021418      1-Apr-29        $ 373,918.86      47.11 6                  6             0.250                     0.017         0.108
5021422      1-May-29        $ 487,609.75      69.71 5                  5             0.250                     0.017         0.358
5021455      1-Apr-29        $ 265,573.31      62.59 1                  1             0.250                     0.017         0.358
5021460      1-May-29        $ 499,579.93      54.05 3                  3             0.250                     0.017         0.108
5021463      1-Jun-29        $ 499,000.00      71.39 0                  0             0.250                     0.017         0.108
5021485      1-Apr-29        $ 329,820.08      90.00 8                  8 01          0.250                     0.017         0.358
5021496      1-Jun-29        $ 270,000.00      56.84 0                  0             0.250                     0.017         0.733
5021513      1-Apr-29        $ 209,654.72      72.41 2                  2             0.250                     0.017         0.233
5021545      1-Apr-29        $ 357,439.77      42.87 7                  7             0.250                     0.017         0.483
5021573      1-Jun-29        $ 319,200.00      80.00 0                  0             0.250                     0.017         0.233
5021575      1-May-29        $ 358,113.39      70.00 9                  9             0.250                     0.017         0.358
5021584      1-May-29        $ 999,180.30      44.44 0                  0             0.250                     0.017         0.233
5021585      1-May-29        $ 273,475.65      74.99 5                  5             0.250                     0.017         0.233
5021586      1-May-29        $ 224,810.97      59.21 7                  7             0.250                     0.017         0.108
5021632      1-Jun-29        $ 535,500.00      70.00 0                  0             0.250                     0.017         0.733
5021673      1-Jun-29        $ 317,000.00      69.67 0                  0             0.250                     0.017         1.233
5021679      1-Apr-29        $ 350,650.40      80.00 0                  0             0.250                     0.017         0.483
5021680      1-Apr-29        $ 354,371.85      69.61 5                  5             0.250                     0.017         0.000
5021701      1-Jun-29        $ 468,000.00      55.06 0                  0             0.250                     0.017         0.233
5021703      1-Apr-29        $ 274,513.40      78.57 0                  0             0.250                     0.017         0.000
5021713      1-Apr-29        $ 329,470.65      73.33 5                  5             0.250                     0.017         0.358
5021721      1-Mar-29        $ 248,469.37      89.89 7                  7 01          0.250                     0.017         0.983
5021811      1-Jun-29        $ 459,260.00      75.00 0                  0             0.250                     0.017         0.608
5021817      1-May-29        $ 369,704.12      69.94 2                  2             0.250                     0.017         0.358
5021835      1-Jun-29        $ 314,400.00      79.59 0                  0             0.250                     0.017         0.733
5021905      1-May-29        $ 406,712.74      77.08 4                  4             0.250                     0.017         0.983
5021913      1-Apr-29        $ 310,473.31      80.00 1                  1             0.250                     0.017         0.108
5021929      1-May-29        $ 581,511.05      48.50 5                  5             0.250                     0.017         0.108
5021930      1-Apr-29        $ 479,129.79      63.16 9                  9             0.250                     0.017         0.000
5022030      1-May-29         $ 74,840.10      70.00 0                  0             0.250                     0.017         0.358
5022035      1-May-29        $ 276,478.73      37.19 3                  3             0.250                     0.017         0.358
5022040      1-May-29        $ 314,760.31      57.27 1                  1             0.250                     0.017         0.608
5022054      1-Jun-29        $ 275,400.00      77.58 0                  0             0.250                     0.017         0.733
5022078      1-May-29        $ 369,411.60      79.33 0                  0             0.250                     0.017         0.483
5022085      1-Jun-29        $ 360,000.00      54.55 0                  0             0.250                     0.017         0.358
5022109      1-Jun-29        $ 387,800.00      71.81 0                  0             0.250                     0.017         0.233
5022156      1-Apr-29        $ 319,433.78      87.67 8                  8 01          0.250                     0.017         0.000
5022158      1-Jun-29        $ 365,000.00      68.87 0                  0             0.250                     0.017         0.358
5022177      1-Jun-29        $ 375,000.00      67.57 0                  0             0.250                     0.017         0.608
5022347      1-Apr-29        $ 454,769.33      75.92 3                  3             0.250                     0.017         0.358
5022363      1-May-29        $ 540,056.95      65.12 5                  5             0.250                     0.017         0.233
5022367      1-Jun-29        $ 380,000.00      76.77 0                  0             0.250                     0.017         0.733
5022379      1-Jun-29        $ 280,000.00      80.00 0                  0             0.250                     0.017         0.483
5022399      1-Jun-29        $ 550,000.00      59.33 0                  0             0.250                     0.017         0.358
5022412      1-Jun-29        $ 425,000.00      43.63 0                  0             0.250                     0.017         0.233
5022427      1-Jun-29        $ 396,800.00      80.00 0                  0             0.250                     0.017         0.233
5022459      1-Jun-29        $ 261,500.00      68.82 0                  0             0.250                     0.017         0.358
5022520      1-May-29        $ 252,512.46      95.00 6                  6 01          0.250                     0.017         0.733
5022535      1-Jun-29        $ 350,000.00      60.07 0                  0             0.250                     0.017         0.358
5022542      1-Jun-29        $ 331,000.00      49.40 0                  0             0.250                     0.017         0.108
5022544      1-Jun-29        $ 265,000.00      62.35 0                  0             0.250                     0.017         0.358
5022568      1-Jun-29        $ 258,500.00      68.03 0                  0             0.250                     0.017         0.358
5022602      1-May-29        $ 324,746.46      69.59 6                  6             0.250                     0.017         0.483
5022626      1-Jun-29        $ 560,000.00      70.00 0                  0             0.250                     0.017         0.483
5022894      1-Jun-29        $ 575,000.00      61.17 0                  0             0.250                     0.017         0.233
5022929      1-Jun-29        $ 498,400.00      80.00 0                  0             0.250                     0.017         0.233
5022946      1-May-29        $ 319,262.88      90.00 8                  8 33          0.250                     0.017         0.733
5022956      1-Jun-29        $ 332,000.00      80.00 0                  0             0.250                     0.017         0.358
5023043      1-May-29        $ 299,760.09      55.02 9                  9             0.250                     0.017         0.358
5023131      1-Jun-29        $ 300,000.00      60.00 0                  0             0.250                     0.017         0.483
5023142      1-Jun-29        $ 400,000.00      79.21 0                  0             0.250                     0.017         0.483
5023143      1-Apr-29        $ 519,106.37      79.99 7                  7             0.250                     0.017         0.608
5023172      1-Apr-29        $ 324,491.42      51.18 2                  2             0.250                     0.017         0.483
5023174      1-Jun-29        $ 271,500.00      90.00 0                  0 33          0.250                     0.017         0.483
5023211      1-May-29        $ 564,337.04      80.00 4                  4             0.250                     0.017         0.233
5023239      1-Apr-29        $ 384,249.39      73.33 9                  9             0.250                     0.017         0.483
5023256      1-Apr-29        $ 452,255.19      53.29 9                  9             0.250                     0.017         0.233
5023294      1-Apr-29        $ 359,581.39      70.00 9                  9             0.250                     0.017         0.000
5023324      1-May-29        $ 307,782.62      80.00 2                  2             0.250                     0.017         0.983
5023382      1-Jun-29        $ 295,000.00      79.95 0                  0             0.250                     0.017         0.483
5023384      1-Apr-29        $ 199,679.17      54.79 7                  7             0.250                     0.017         0.358
5023435      1-May-29        $ 504,606.04      73.72 4                  4             0.250                     0.017         0.483
5023462      1-May-29        $ 399,687.96      79.91 6                  6             0.250                     0.017         0.483
5023470      1-Jun-29        $ 539,000.00      70.00 0                  0             0.250                     0.017         0.858
5023512      1-May-29        $ 292,798.35      48.51 5                  5             0.250                     0.017         1.108
5023602      1-May-29        $ 257,798.73      60.00 3                  3             0.250                     0.017         0.483
5023622      1-Jun-29        $ 305,000.00      57.89 0                  0             0.250                     0.017         0.358
5023623      1-Jun-29        $ 494,000.00      66.76 0                  0             0.250                     0.017         0.358
5023626      1-Jun-29        $ 630,000.00      70.00 0                  0             0.250                     0.017         0.483
5023641      1-Jun-29        $ 392,000.00      80.00 0                  0             0.250                     0.017         0.608
5023649      1-Jun-29        $ 285,000.00      72.15 0                  0             0.250                     0.017         1.358
5023849      1-May-29        $ 321,729.49      59.08 9                  9             0.250                     0.017         0.108
5023897      1-May-29        $ 449,657.58      71.43 8                  8             0.250                     0.017         0.608
5023997      1-May-29        $ 274,361.05      95.00 5                  5 33          0.250                     0.017         1.108
5024015      1-May-29        $ 437,241.31      80.00 1                  1             0.250                     0.017         0.233
5024068      1-Jun-29        $ 380,800.00      80.00 0                  0             0.250                     0.017         0.483
5024069      1-May-29        $ 327,750.75      42.58 5                  5             0.250                     0.017         0.608
5024140      1-May-29        $ 262,773.56      68.13 6                  6             0.250                     0.017         0.000
5024147      1-Jun-29        $ 355,000.00      67.62 0                  0             0.250                     0.017         0.233
5024173      1-May-24        $ 461,429.68      71.08 8                  8             0.250                     0.017         0.233
5024186      1-Jun-29        $ 260,100.00      90.00 0                  0 01          0.250                     0.017         0.608
5024252      1-May-29        $ 322,235.64      53.88 4                  4             0.250                     0.017         0.233
5024272      1-Jun-29        $ 635,000.00      55.22 0                  0             0.250                     0.017         0.108
5024280      1-Jun-29        $ 324,959.00      66.32 0                  0             0.250                     0.017         0.733
5024384      1-May-29        $ 617,505.80      70.27 0                  0             0.250                     0.017         0.358
5024392      1-Apr-29        $ 254,590.94      62.96 4                  4             0.250                     0.017         0.358
5024433      1-Apr-29        $ 271,552.78      78.84 8                  8             0.250                     0.017         0.233
5024531      1-Jun-29        $ 542,700.00      78.65 0                  0             0.250                     0.017         0.358
5024640      1-May-29        $ 267,785.68      80.00 8                  8             0.250                     0.017         0.358
5024643      1-Jun-29        $ 272,000.00      80.00 0                  0             0.250                     0.017         0.608
5024644      1-Jun-29        $ 450,000.00      60.40 0                  0             0.250                     0.017         0.358
5024671      1-Jun-29        $ 414,000.00      78.11 0                  0             0.250                     0.017         0.483
5024679      1-Jun-29        $ 268,000.00      50.57 0                  0             0.250                     0.017         0.483
5024702      1-Jun-29        $ 268,500.00      62.44 0                  0             0.250                     0.017         0.733
5024705      1-Jun-29        $ 447,000.00      62.96 0                  0             0.250                     0.017         0.108
5024867      1-May-29        $ 297,767.53      69.30 3                  3             0.250                     0.017         0.483
5024905      1-May-29        $ 545,552.44      78.00 4                  4             0.250                     0.017         0.233
5024971      1-May-29        $ 274,990.59      80.00 9                  9             0.250                     0.017         0.608
5024993      1-Jun-29        $ 468,000.00      80.00 0                  0             0.250                     0.017         0.483
5025007      1-May-29        $ 494,573.81      69.72 1                  1             0.250                     0.017         0.000
5025026      1-May-29        $ 590,439.04      53.72 4                  4             0.250                     0.017         0.483
5025027      1-Jun-29        $ 420,000.00      56.00 0                  0             0.250                     0.017         1.108
5025037      1-Jun-29        $ 432,300.00      80.00 0                  0             0.250                     0.017         0.483
5025066      1-Jun-29        $ 540,000.00      79.41 0                  0             0.250                     0.017         1.108
5025143      1-Jun-29        $ 280,000.00      80.00 0                  0             0.250                     0.017         0.483
5025211      1-May-29        $ 307,277.44      53.02 4                  4             0.250                     0.017         0.858
5025243      1-Jun-29        $ 418,000.00      83.60 0                  0 01          0.250                     0.017         0.733
5025282      1-Jun-29        $ 305,000.00      74.39 0                  0             0.250                     0.017         1.358
5025287      1-Jun-29        $ 250,000.00      41.67 0                  0             0.250                     0.017         0.608
5025329      1-May-29        $ 437,640.97      67.38 7                  7             0.250                     0.017         0.233
5025365      1-May-29        $ 265,276.94      90.00 4                  4 11          0.250                     0.017         0.108
5025370      1-May-29        $ 293,776.28      73.50 8                  8             0.250                     0.017         0.608
5025393      1-Jun-29        $ 356,500.00      72.02 0                  0             0.250                     0.017         0.483
5025400      1-May-29        $ 257,798.73      73.71 3                  3             0.250                     0.017         0.483
5025542      1-Apr-29        $ 263,197.61      90.00 1                  1 24          0.250                     0.017         0.608
5025559      1-Jun-29        $ 500,000.00      50.00 0                  0             0.250                     0.017         0.000
5025595      1-Jun-29        $ 342,500.00      69.90 0                  0             0.250                     0.017         0.483
5025606      1-May-29        $ 303,774.38      80.00 8                  8             0.250                     0.017         0.733
5025800      1-Jun-29        $ 550,000.00      73.83 0                  0             0.250                     0.017         1.233
5025823      1-Jun-29        $ 283,700.00      64.48 0                  0             0.250                     0.017         0.483
5025826      1-Jun-29        $ 294,000.00      70.00 0                  0             0.250                     0.017         0.233
5025830      1-Jun-29        $ 495,000.00      66.44 0                  0             0.250                     0.017         0.108
5025848      1-Jun-29        $ 300,000.00      79.08 0                  0             0.250                     0.017         0.358
5025852      1-Jun-29        $ 352,000.00      74.11 0                  0             0.250                     0.017         0.483
5025873      1-Jun-29        $ 380,000.00      57.58 0                  0             0.250                     0.017         0.000
5025890      1-Jun-29        $ 373,000.00      71.05 0                  0             0.250                     0.017         1.358
5025902      1-Jun-29        $ 390,000.00      52.00 0                  0             0.250                     0.017         0.108
5025906      1-May-29        $ 392,693.42      68.95 2                  2             0.250                     0.017         0.483
5025921      1-Jun-29        $ 506,000.00      60.96 0                  0             0.250                     0.017         0.483
5025924      1-Jun-29        $ 314,900.00      69.21 0                  0             0.250                     0.017         0.108
5025953      1-May-29        $ 448,631.96      79.47 6                  6             0.250                     0.017         0.233
5025971      1-Jun-29        $ 280,000.00      40.00 0                  0             0.250                     0.017         0.608
5025987      1-Jun-29        $ 277,000.00      44.32 0                  0             0.250                     0.017         0.608
5026005      1-May-29        $ 279,676.17      79.99 7                  7             0.250                     0.017         0.358
5026071      1-May-29        $ 319,744.10      80.00 0                  0             0.250                     0.017         0.358
5026079      1-Jun-29        $ 374,950.00      76.36 0                  0             0.250                     0.017         0.108
5026184      1-Jun-29        $ 360,000.00      80.00 0                  0             0.250                     0.017         0.358
5026194      1-Jun-29        $ 460,000.00      67.15 0                  0             0.250                     0.017         0.358
5026292      1-May-29        $ 308,071.20      89.88 0                  0 17          0.250                     0.017         0.733
5026319      1-May-29        $ 367,698.35      62.91 5                  5             0.250                     0.017         0.233
5026329      1-Jun-29        $ 416,000.00      61.18 0                  0             0.250                     0.017         0.483
5026352      1-Jun-29        $ 298,000.00      77.40 0                  0             0.250                     0.017         0.483
5026369      1-Jun-29        $ 320,000.00      54.98 0                  0             0.250                     0.017         0.108
5026375      1-May-29        $ 599,508.18      58.54 8                  8             0.250                     0.017         0.233
5026415      1-Jun-29        $ 316,000.00      79.98 0                  0             0.250                     0.017         0.483
5026437      1-May-29        $ 274,763.23      68.75 3                  3             0.250                     0.017         0.000
5026517      1-Jun-29        $ 332,100.00      78.14 0                  0             0.250                     0.017         0.608
5026571      1-Jun-29        $ 355,000.00      61.10 0                  0             0.250                     0.017         0.233
5026574      1-May-29        $ 619,404.27      80.00 7                  7             0.250                     0.017         0.358
5026586      1-May-29        $ 254,801.08      78.46 8                  8             0.250                     0.017         0.483
5026587      1-Jun-29        $ 300,000.00      63.83 0                  0             0.250                     0.017         0.983
5026623      1-Jun-29        $ 955,500.00      65.00 0                  0             0.250                     0.017         0.233
5026653      1-Jun-29        $ 380,000.00      54.68 0                  0             0.250                     0.017         0.483
5026687      1-Jun-29        $ 351,000.00      68.16 0                  0             0.250                     0.017         0.483
5026703      1-Jun-29        $ 360,000.00      69.90 0                  0             0.250                     0.017         0.358
5026706      1-Jun-29        $ 630,000.00      69.00 0                  0             0.250                     0.017         0.483
5026708      1-Jun-29        $ 260,000.00      77.61 0                  0             0.250                     0.017         0.483
5026728      1-Jun-29        $ 321,100.00      60.02 0                  0             0.250                     0.017         0.483
5026729      1-May-29        $ 299,747.96      61.86 6                  6             0.250                     0.017         0.108
5026730      1-May-29        $ 360,218.77      72.10 7                  7             0.250                     0.017         0.483
5026734      1-Jun-29        $ 276,000.00      80.00 0                  0             0.250                     0.017         0.000
5026739      1-May-29        $ 509,602.15      53.68 5                  5             0.250                     0.017         0.483
5026800      1-Jun-29        $ 280,000.00      43.08 0                  0             0.250                     0.017         0.483
5026823      1-May-29        $ 299,754.09      47.24 9                  9             0.250                     0.017         0.233
5026853      1-Jun-29        $ 326,000.00      67.92 0                  0             0.250                     0.017         0.233
5026870      1-Jun-29        $ 374,000.00      76.33 0                  0             0.250                     0.017         0.233
5026949      1-Jun-29        $ 292,500.00      90.00 0                  0 11          0.250                     0.017         0.233
5026996      1-Jun-29        $ 265,950.00      69.99 0                  0             0.250                     0.017         0.733
5027007      1-Jun-29        $ 824,000.00      56.44 0                  0             0.250                     0.017         0.358
5027078      1-Jun-29        $ 145,000.00      51.79 0                  0             0.250                     0.017         0.983
5027091      1-May-29        $ 412,161.87      58.93 7                  7             0.250                     0.017         0.233
5027103      1-Jun-29        $ 340,000.00      80.00 0                  0             0.250                     0.017         0.358
5027119      1-Jun-29        $ 320,000.00      80.00 0                  0             0.250                     0.017         0.733
5027156      1-May-29        $ 379,696.11      61.49 1                  1             0.250                     0.017         0.358
5027159      1-Jun-29        $ 408,000.00      74.18 0                  0             0.250                     0.017         0.608
5027217      1-May-29        $ 424,660.13      50.00 3                  3             0.250                     0.017         0.358
5027237      1-Jun-29        $ 300,000.00      60.01 0                  0             0.250                     0.017         0.358
5027266      1-Jun-29        $ 270,000.00      73.97 0                  0             0.250                     0.017         1.358
5027270      1-Jun-29        $ 647,000.00      62.82 0                  0             0.250                     0.017         0.233
5027275      1-Jun-29        $ 448,000.00      80.00 0                  0             0.250                     0.017         1.108
5027279      1-Jun-29        $ 322,400.00      80.00 0                  0             0.250                     0.017         0.108
5027314      1-Jun-29        $ 260,000.00      80.00 0                  0             0.250                     0.017         0.233
5027343      1-Jun-29        $ 323,000.00      43.07 0                  0             0.250                     0.017         0.108
5027361      1-Jun-29        $ 274,500.00      62.39 0                  0             0.250                     0.017         0.483
5027413      1-Jun-29        $ 266,000.00      60.45 0                  0             0.250                     0.017         0.733
5027414      1-May-29        $ 287,786.26      80.00 6                  6             0.250                     0.017         0.733
5027506      1-May-29        $ 259,797.17      80.00 7                  7             0.250                     0.017         0.483
5027593      1-Jun-29        $ 348,000.00      80.00 0                  0             0.250                     0.017         0.233
5027788      1-Jun-29        $ 630,000.00      70.00 0                  0             0.250                     0.017         0.108
5027869      1-Jun-29        $ 519,000.00      53.23 0                  0             0.250                     0.017         0.358
5027884      1-Jun-29        $ 780,000.00      65.00 0                  0             0.250                     0.017         1.108
5027888      1-Jun-29        $ 457,000.00      64.37 0                  0             0.250                     0.017         0.358
5027938      1-Jun-29        $ 348,000.00      39.10 0                  0             0.250                     0.017         0.358
5027972      1-Jun-29        $ 400,000.00      28.07 0                  0             0.250                     0.017         0.483
5027973      1-Jun-29        $ 272,000.00      59.78 0                  0             0.250                     0.017         0.608
5027986      1-Jun-29        $ 300,000.00      61.22 0                  0             0.250                     0.017         0.108
5028104      1-May-29        $ 648,094.03      79.68 3                  3             0.250                     0.017         0.483
5028158      1-May-29        $ 299,776.76      93.64 6                  6 01          0.250                     0.017         0.733
5028204      1-May-29        $ 374,700.11      55.56 1                  1             0.250                     0.017         0.358
5028352      1-Jun-19        $ 313,500.00      62.08 0                  0             0.250                     0.017         0.733
5028423      1-May-29        $ 296,562.65      80.00 5                  5             0.250                     0.017         0.358
5028458      1-Jun-29        $ 354,000.00      76.13 0                  0             0.250                     0.017         0.608
5028479      1-May-29        $ 420,396.52      85.00 2                  2 01          0.250                     0.017         0.108
5028630      1-May-29        $ 251,798.47      79.50 7                  7             0.250                     0.017         0.358
5028635      1-Jun-29        $ 510,000.00      56.98 0                  0             0.250                     0.017         0.733
5028654      1-Jun-29        $ 295,000.00      47.58 0                  0             0.250                     0.017         0.233
5028685      1-Jun-29        $ 462,500.00      76.76 0                  0             0.250                     0.017         0.233
5028708      1-Jun-29        $ 252,000.00      80.00 0                  0             0.250                     0.017         0.233
5028711      1-Jun-29        $ 300,000.00      60.00 0                  0             0.250                     0.017         0.608
5028764      1-Jun-29        $ 272,000.00      53.33 0                  0             0.250                     0.017         0.483
5028836      1-Jun-29        $ 312,500.00      75.76 0                  0             0.250                     0.017         0.608
5028922      1-Jun-29        $ 500,000.00      73.53 0                  0             0.250                     0.017         0.608
5029073      1-Jun-29        $ 290,000.00      78.38 0                  0             0.250                     0.017         0.108
5029091      1-Jun-29        $ 350,000.00      48.61 0                  0             0.250                     0.017         1.358
5029107      1-Jun-29        $ 320,000.00      63.24 0                  0             0.250                     0.017         0.608
5029133      1-Jun-29        $ 528,000.00      80.00 0                  0             0.250                     0.017         1.358
5029268      1-May-29        $ 296,779.58      68.28 8                  8             0.250                     0.017         0.733
5029284      1-Jun-29        $ 458,500.00      76.42 0                  0             0.250                     0.017         1.233
5029301      1-May-29        $ 269,799.62      60.40 2                  2             0.250                     0.017         0.733
5029305      1-Jun-29        $ 366,200.00      53.85 0                  0             0.250                     0.017         0.358
5029329      1-May-29        $ 303,650.90      79.99 0                  0             0.250                     0.017         0.233
5029341      1-Jun-29        $ 305,000.00      69.32 0                  0             0.250                     0.017         0.608
5029354      1-May-29        $ 399,680.13      49.94 3                  3             0.250                     0.017         0.358
5029361      1-May-29        $ 252,504.07      67.73 7                  7             0.250                     0.017         0.233
5029366      1-May-29        $ 269,799.62      79.41 2                  2             0.250                     0.017         0.733
5029374      1-May-29        $ 399,695.63      80.00 3                  3             0.250                     0.017         0.608
5029385      1-May-29        $ 267,980.16      90.00 6                  6 13          0.250                     0.017         0.233
5029419      1-Jun-29        $ 435,000.00      71.83 0                  0             0.250                     0.017         0.233
5029433      1-May-29        $ 397,689.52      80.00 2                  2             0.250                     0.017         0.483
5029474      1-May-29        $ 423,660.93      66.77 3                  3             0.250                     0.017         0.358
5029481      1-Jun-29        $ 387,000.00      46.91 0                  0             0.250                     0.017         0.608
5029552      1-Jun-29        $ 296,100.00      90.00 0                  0 13          0.250                     0.017         0.733
5029625      1-Jun-29        $ 275,000.00      65.48 0                  0             0.250                     0.017         0.733
5029746      1-Jun-29        $ 370,000.00      53.24 0                  0             0.250                     0.017         0.608
5029761      1-Jun-29        $ 330,000.00      52.38 0                  0             0.250                     0.017         0.000
5029805      1-Jun-29        $ 236,000.00      74.92 0                  0             0.250                     0.017         0.733
5029950      1-May-29        $ 301,270.58      90.00 8                  8 01          0.250                     0.017         0.608
5030131      1-Jun-29        $ 490,000.00      59.39 0                  0             0.250                     0.017         0.358
5030190      1-May-29        $ 414,084.68      80.00 8                  8             0.250                     0.017         0.608
5030208      1-Jun-29        $ 369,000.00      79.87 0                  0             0.250                     0.017         1.233
5030254      1-May-29        $ 304,168.38      67.64 8                  8             0.250                     0.017         0.608
5030269      1-May-29        $ 492,605.75      68.95 5                  5             0.250                     0.017         0.358
5030274      1-Jun-29        $ 360,000.00      90.00 0                  0 13          0.250                     0.017         0.733
5030275      1-May-29        $ 420,137.95      56.82 5                  5             0.250                     0.017         0.000
5030299      1-Dec-28        $ 358,371.67      86.96 7                  7 11          0.250                     0.017         0.733
5030300      1-May-29        $ 253,602.01      57.68 1                  1             0.250                     0.017         0.483
5030320      1-May-29        $ 264,771.84      58.89 4                  4             0.250                     0.017         0.000
5030334      1-Jun-29        $ 264,000.00      74.79 0                  0             0.250                     0.017         0.233
5030344      1-May-29        $ 296,756.55      49.50 5                  5             0.250                     0.017         0.233
5030370      1-May-29        $ 310,757.39      51.83 9                  9             0.250                     0.017         0.483
5030379      1-Jun-29        $ 392,000.00      80.00 0                  0             0.250                     0.017         0.108
5030385      1-May-29        $ 268,790.15      67.25 5                  5             0.250                     0.017         0.483
5030417      1-May-29        $ 249,785.24      67.75 4                  4             0.250                     0.017         0.483
5030425      1-May-29        $ 399,655.61      43.72 1                  1             0.250                     0.017         0.000
5030436      1-Jun-29        $ 508,000.00      80.00 0                  0             0.250                     0.017         1.233
5030438      1-May-29        $ 281,979.85      59.41 5                  5             0.250                     0.017         0.483
5030469      1-May-29        $ 454,653.77      70.00 7                  7             0.250                     0.017         0.608
5030479      1-Jun-29        $ 228,750.00      75.00 0                  0             0.250                     0.017         0.608
5030496      1-May-29        $ 349,720.11      74.47 1                  1             0.250                     0.017         0.358
5030519      1-May-29        $ 515,847.27      64.53 7                  7             0.250                     0.017         0.483
5030522      1-May-29        $ 314,760.31      90.00 1                  1 01          0.250                     0.017         0.608
5030541      1-May-29        $ 279,781.57      65.88 7                  7             0.250                     0.017         0.483
5030547      1-May-29        $ 271,760.02      64.76 2                  2             0.250                     0.017         0.000
5030554      1-May-29        $ 365,714.48      80.00 8                  8             0.250                     0.017         0.483
5030559      1-May-29        $ 436,641.79      65.71 9                  9             0.250                     0.017         0.233
5030581      1-Jun-29        $ 410,600.00      80.00 0                  0             0.250                     0.017         0.858
5030647      1-May-29        $ 302,969.29      80.00 9                  9             0.250                     0.017         0.608
5030688      1-May-29        $ 349,726.96      75.36 6                  6             0.250                     0.017         0.483
5030719      1-May-29        $ 359,732.82      75.00 2                  2             0.250                     0.017         0.733
5030754      1-Jun-29        $ 300,000.00      80.00 0                  0             0.250                     0.017         0.358
5030795      1-Jun-29        $ 500,000.00      68.49 0                  0             0.250                     0.017         0.608
5030802      1-Jun-29        $ 441,700.00      66.92 0                  0             0.250                     0.017         0.483
5030955      1-Jun-29        $ 329,000.00      68.54 0                  0             0.250                     0.017         1.108
5031026      1-Jun-29        $ 259,100.00      79.97 0                  0             0.250                     0.017         0.733
5031106      1-Jun-29        $ 332,500.00      63.33 0                  0             0.250                     0.017         0.608
5031200      1-Jun-29        $ 280,250.00      95.00 0                  0 06          0.250                     0.017         0.608
5031291      1-May-29        $ 292,759.83      63.70 3                  3             0.250                     0.017         0.233
5031293      1-Jun-29        $ 388,000.00      49.43 0                  0             0.250                     0.017         0.608
5031309      1-May-29        $ 559,481.32      80.00 2                  2             0.250                     0.017         0.000
5031312      1-May-29        $ 395,375.64      53.33 4                  4             0.250                     0.017         0.233
5031327      1-May-29        $ 249,762.50      62.50 0                  0             0.250                     0.017         0.733
5031343      1-May-29        $ 341,233.59      52.54 9                  9             0.250                     0.017         0.483
5031345      1-May-29        $ 281,763.09      58.14 9                  9             0.250                     0.017         0.108
5031382      1-Jun-29        $ 333,000.00      57.91 0                  0             0.250                     0.017         0.233
5031401      1-May-29        $ 498,730.57      54.05 7                  7             0.250                     0.017         0.358
5031402      1-Jun-29        $ 480,000.00      80.00 0                  0             0.250                     0.017         0.108
5031408      1-Jun-29        $ 256,000.00      88.28 0                  0 11          0.250                     0.017         0.000
5031465      1-Dec-28        $ 340,188.26      85.00 6                  6 11          0.250                     0.017         0.483
5031472      1-Jun-29        $ 500,000.00      64.52 0                  0             0.250                     0.017         0.733
5031475      1-Jan-29        $ 278,749.08      80.00 8                  8             0.250                     0.017         0.733
5031523      1-Apr-29        $ 275,568.08      80.00 8                  8             0.250                     0.017         0.483
5031531      1-Jun-29        $ 451,600.00      69.48 0                  0             0.250                     0.017         0.483
5031560      1-Feb-29        $ 342,715.37      73.98 7                  7             0.250                     0.017         0.000
5031586      1-Apr-29        $ 389,773.75      80.00 5                  5             0.250                     0.017         0.358
5031602      1-Apr-29        $ 434,429.94      80.00 4                  4             0.250                     0.017         0.000
5031619      1-Jun-29        $ 350,000.00      63.41 0                  0             0.250                     0.017         0.608
5031621      1-Mar-29        $ 334,171.38      50.38 8                  8             0.250                     0.017         0.233
5031628      1-Apr-29        $ 309,426.16      72.94 6                  6             0.250                     0.017         0.608
5031651      1-Apr-29        $ 293,991.46      70.96 6                  6             0.250                     0.017         0.000
5031684      1-Mar-29        $ 299,257.97      74.63 7                  7             0.250                     0.017         0.233
5031750      1-Apr-29        $ 276,544.56      79.14 6                  6             0.250                     0.017         0.233
5031882      1-Jun-29        $ 278,000.00      67.80 0                  0             0.250                     0.017         0.358
5031956      1-Jun-29        $ 377,600.00      80.00 0                  0             0.250                     0.017         0.000
5031979      1-Apr-29        $ 319,355.06      66.67 6                  6             0.250                     0.017         0.108
5032050      1-Jun-29        $ 310,000.00      56.47 0                  0             0.250                     0.017         0.483
5032095      1-Jun-29        $ 285,000.00      78.08 0                  0             0.250                     0.017         1.358
5032096      1-Jun-29        $ 381,000.00      78.56 0                  0             0.250                     0.017         1.358
5032100      1-Jun-29        $ 380,000.00      80.00 0                  0             0.250                     0.017         0.608
5032269      1-May-29        $ 358,705.73      54.39 3                  3             0.250                     0.017         0.233
5032280      1-May-29        $ 292,759.83      86.18 3                  3 01          0.250                     0.017         0.233
5032282      1-May-29        $ 279,758.92      80.00 2                  2             0.250                     0.017         0.000
5032301      1-May-29        $ 419,647.14      80.00 4                  4             0.250                     0.017         0.108
5032311      1-Jun-29        $ 307,000.00      89.77 0                  0 11          0.250                     0.017         0.233
5032319      1-Apr-29        $ 376,380.14      79.96 4                  4             0.250                     0.017         0.233
5032322      1-Jun-29        $ 350,000.00      46.36 0                  0             0.250                     0.017         0.733
5032338      1-Apr-29        $ 532,145.01      77.25 1                  1             0.250                     0.017         0.358
5032347      1-Apr-29        $ 314,519.13      88.73 3                  3 17          0.250                     0.017         0.608
5032350      1-May-29        $ 281,640.83      94.92 3                  3             0.250                     0.017         0.733
5032372      1-Apr-29        $ 286,548.25      80.00 5                  5             0.250                     0.017         0.358
5032383      1-Apr-29        $ 504,189.91      72.14 1                  1             0.250                     0.017         0.358
5032410      1-Apr-29        $ 274,497.94      90.00 4                  4 06          0.250                     0.017         0.233
5032441      1-Jun-29        $ 418,000.00      74.64 0                  0             0.250                     0.017         0.733
5032463      1-May-29        $ 306,954.34      80.00 4                  4             0.250                     0.017         0.358
5032465      1-Mar-29        $ 323,171.23      90.00 3                  3 24          0.250                     0.017         0.108
5032536      1-Apr-29        $ 277,554.04      80.00 4                  4             0.250                     0.017         0.358
5032556      1-Apr-29        $ 315,517.63      80.00 3                  3             0.250                     0.017         0.608
5032559      1-May-29        $ 303,051.38      90.00 8                  8 01          0.250                     0.017         0.233
5032568      1-Apr-29        $ 309,941.93      90.00 3                  3 11          0.250                     0.017         0.358
5032584      1-Apr-29        $ 294,526.79      78.67 9                  9             0.250                     0.017         0.358
5032598      1-Mar-29        $ 275,184.30      62.69 0                  0             0.250                     0.017         0.358
5032614      1-Mar-29        $ 279,307.43      67.63 3                  3             0.250                     0.017         0.233
5032637      1-May-29        $ 502,617.25      79.97 5                  5             0.250                     0.017         0.608
5032658      1-Feb-29        $ 332,948.31      60.73 1                  1             0.250                     0.017         0.483
5032667      1-Apr-29        $ 277,919.26      80.00 6                  6             0.250                     0.017         0.000
5032727      1-May-29        $ 499,600.16      21.74 6                  6             0.250                     0.017         0.358
5032728      1-Apr-29        $ 447,349.44      74.67 4                  4             0.250                     0.017         0.858
5032745      1-Jun-29        $ 296,000.00      80.00 0                  0             0.250                     0.017         0.358
5032753      1-Apr-29        $ 349,410.24      68.63 4                  4             0.250                     0.017         0.108
5032824      1-Jun-29        $ 440,000.00      64.71 0                  0             0.250                     0.017         0.000
5032828      1-May-29        $ 399,655.60      42.02 0                  0             0.250                     0.017         0.000
5032982      1-Jun-29        $ 560,000.00      80.00 0                  0             0.250                     0.017         0.108
5033008      1-Jun-29        $ 391,000.00      52.84 0                  0             0.250                     0.017         1.358
5033077      1-Jun-29        $ 420,000.00      68.29 0                  0             0.250                     0.017         0.733
5033123      1-Apr-29        $ 268,735.14      77.13 4                  4             0.250                     0.017         0.000
5033127      1-May-29        $ 317,539.49      53.41 9                  9             0.250                     0.017         0.233
5033145      1-Apr-29        $ 319,486.69      79.21 9                  9             0.250                     0.017         0.358
5033166      1-May-29        $ 279,770.48      70.00 8                  8             0.250                     0.017         0.233
5033179      1-Apr-29        $ 277,086.81      75.00 1                  1             0.250                     0.017         0.733
5033209      1-Apr-29        $ 291,444.43      80.00 3                  3             0.250                     0.017         0.000
5033219      1-Mar-29        $ 370,810.29      75.15 9                  9             0.250                     0.017         0.233
5033230      1-Apr-29        $ 296,499.54      66.29 4                  4             0.250                     0.017         0.108
5033260      1-Mar-29        $ 283,214.85      79.99 5                  5             0.250                     0.017         0.358
5033270      1-Apr-29        $ 357,203.87      75.00 7                  7             0.250                     0.017         0.608
5033278      1-Jun-29        $ 350,000.00      46.67 0                  0             0.250                     0.017         0.483
5033309      1-Apr-29        $ 309,437.98      80.00 8                  8             0.250                     0.017         0.000
5033340      1-Apr-29        $ 391,355.49      80.00 9                  9             0.250                     0.017         0.233
5033362      1-Apr-29        $ 259,593.12      80.00 2                  2             0.250                     0.017         0.483
5033367      1-Apr-29        $ 343,500.47      80.00 7                  7             0.250                     0.017         0.858
5033377      1-Apr-29        $ 352,405.16      67.88 6                  6             0.250                     0.017         0.108
5033411      1-Apr-29        $ 369,089.91      79.57 1                  1             0.250                     0.017         0.233
5033479      1-Mar-29        $ 338,760.02      80.00 2                  2             0.250                     0.017         0.233
5033509      1-Nov-28        $ 341,696.01      80.00 1                  1             0.250                     0.017         0.108
5033585      1-Apr-29        $ 294,514.96      65.56 6                  6             0.250                     0.017         0.233
5033639      1-Apr-29        $ 471,684.08      75.00 8                  8             0.250                     0.017         0.000
5033673      1-Apr-29        $ 309,464.68      62.00 8                  8             0.250                     0.017         0.000
5033686      1-Apr-29        $ 303,500.17      80.00 7                  7             0.250                     0.017         0.233
5033746      1-May-29        $ 291,772.21      80.00 1                  1             0.250                     0.017         0.483
5033772      1-Apr-29        $ 580,313.57      75.00 7                  7             0.250                     0.017         0.358
5033798      1-Mar-29        $ 478,841.60      80.00 0                  0             0.250                     0.017         0.358
5033811      1-Apr-29        $ 292,494.04      67.51 4                  4             0.250                     0.017         0.000
5033851      1-Apr-29        $ 256,766.59      80.00 9                  9             0.250                     0.017         0.108
5033871      1-May-29        $ 314,748.10      64.29 0                  0             0.250                     0.017         0.358
5033887      1-May-29        $ 480,624.77      68.71 7                  7             0.250                     0.017         0.483
5033910      1-May-29         $ 94,925.89      42.41 9                  9             0.250                     0.017         0.483
5033919      1-May-29        $ 278,782.36      69.75 6                  6             0.250                     0.017         0.483
5033927      1-May-29        $ 499,559.98      69.44 8                  8             0.250                     0.017         0.483
5033934      1-May-29        $ 290,167.77      80.00 7                  7             0.250                     0.017         0.358
5033947      1-Jun-29        $ 261,000.00      60.00 0                  0             0.250                     0.017         0.733
5033958      1-May-29        $ 269,773.17      64.92 7                  7             0.250                     0.017         0.108
5033984      1-May-29        $ 274,768.97      69.49 7                  7             0.250                     0.017         0.108
5033994      1-Apr-29        $ 283,045.24      90.00 4                  4 06          0.250                     0.017         0.358
5034002      1-May-29        $ 401,186.79      74.35 9                  9             0.250                     0.017         0.483
5034014      1-Jun-29        $ 325,000.00      67.71 0                  0             0.250                     0.017         0.483
5034055      1-Jun-29        $ 950,000.00      60.61 0                  0             0.250                     0.017         0.233
5034058      1-Jun-29        $ 385,900.00      52.15 0                  0             0.250                     0.017         0.108
5034290      1-May-29        $ 317,445.94      80.00 4                  4             0.250                     0.017         0.358
5034360      1-Jun-29        $ 419,900.00      79.83 0                  0             0.250                     0.017         0.733
5034369      1-May-29        $ 323,747.24      80.00 4                  4             0.250                     0.017         0.483
5034383      1-Apr-29        $ 349,424.55      66.54 5                  5             0.250                     0.017         0.233
5034387      1-Jun-29        $ 311,900.00      79.99 0                  0             0.250                     0.017         0.608
5034550      1-May-29        $ 296,774.00      67.50 0                  0             0.250                     0.017         0.608
5034572      1-Apr-29        $ 349,424.55      67.96 5                  5             0.250                     0.017         0.233
5034585      1-May-29        $ 366,906.36      79.84 6                  6             0.250                     0.017         0.358
5034594      1-Apr-29        $ 598,912.25      72.73 5                  5             0.250                     0.017         0.000
5034608      1-Apr-29        $ 299,469.18      40.00 8                  8             0.250                     0.017         0.000
5034625      1-Apr-29        $ 299,494.48      58.16 8                  8             0.250                     0.017         0.108
5034634      1-Apr-29        $ 382,006.19      80.00 9                  9             0.250                     0.017         0.000
5034636      1-Apr-29        $ 263,565.94      80.00 4                  4             0.250                     0.017         0.233
5034641      1-Apr-29        $ 272,212.65      95.00 5                  5 13          0.250                     0.017         0.358
5034644      1-Apr-29        $ 253,602.51      76.74 1                  1             0.250                     0.017         0.483
5034650      1-Apr-29        $ 331,454.15      77.23 5                  5             0.250                     0.017         0.233
5034690      1-Apr-29        $ 382,554.28      80.00 8                  8             0.250                     0.017         0.108
5034725      1-Feb-29        $ 299,007.73      55.56 3                  3             0.250                     0.017         0.233
5034742      1-Apr-29        $ 599,013.50      32.88 0                  0             0.250                     0.017         0.233
5034748      1-Jun-29        $ 278,600.00      80.00 0                  0             0.250                     0.017         0.233
5034749      1-May-29        $ 281,785.41      77.90 1                  1             0.250                     0.017         0.608
5034842      1-Apr-29        $ 405,332.47      72.50 7                  7             0.250                     0.017         0.233
5035121      1-Jun-29        $ 251,750.00      95.00 0                  0 06          0.250                     0.017         0.858
5035156      1-May-29        $ 324,752.70      54.17 0                  0             0.250                     0.017         0.608
5035166      1-May-29        $ 291,788.66      80.00 6                  6             0.250                     0.017         0.858
5035185      1-May-29        $ 478,616.95      73.69 5                  5             0.250                     0.017         0.358
5035206      1-May-29        $ 272,287.42      70.78 2                  2             0.250                     0.017         0.483
5035216      1-May-29        $ 464,637.26      79.49 6                  6             0.250                     0.017         0.483
5035226      1-May-29        $ 351,725.40      67.05 0                  0             0.250                     0.017         0.483
5035230      1-May-29        $ 326,731.96      58.39 6                  6             0.250                     0.017         0.233
5035258      1-May-29        $ 359,682.38      64.29 8                  8             0.250                     0.017         0.000
5035275      1-May-29        $ 298,155.40      80.00 0                  0             0.250                     0.017         0.233
5035294      1-May-29        $ 269,794.54      47.37 4                  4             0.250                     0.017         0.608
5035354      1-May-29        $ 346,326.62      49.52 2                  2             0.250                     0.017         0.000
5035368      1-May-29        $ 256,299.90      77.73 0                  0             0.250                     0.017         0.483
5035389      1-May-29        $ 329,529.67      68.00 7                  7             0.250                     0.017         0.233
5035405      1-May-29        $ 592,014.33      75.00 3                  3             0.250                     0.017         0.233
5035416      1-May-29        $ 349,705.95      78.83 5                  5             0.250                     0.017         0.108
5035426      1-May-29        $ 434,643.43      79.82 3                  3             0.250                     0.017         0.233
5035432      1-Jun-29        $ 333,000.00      64.04 0                  0             0.250                     0.017         0.233
5035438      1-May-29        $ 253,806.72      75.15 2                  2             0.250                     0.017         0.608
5035444      1-May-29        $ 287,763.92      80.00 2                  2             0.250                     0.017         0.233
5035454      1-May-29        $ 302,751.63      74.81 3                  3             0.250                     0.017         0.233
5035469      1-May-29        $ 382,216.13      70.83 3                  3             0.250                     0.017         0.733
5035476      1-May-29        $ 424,651.63      73.28 3                  3             0.250                     0.017         0.233
5035486      1-May-29        $ 249,784.75      72.46 5                  5             0.250                     0.017         0.000
5035496      1-May-29        $ 281,780.01      79.44 1                  1             0.250                     0.017         0.483
5035505      1-May-29        $ 579,547.55      80.00 5                  5             0.250                     0.017         0.483
5035547      1-May-29        $ 424,660.13      73.91 3                  3             0.250                     0.017         0.358
5035566      1-May-29        $ 486,829.28      80.00 8                  8             0.250                     0.017         0.608
5035586      1-May-29        $ 367,698.35      73.16 5                  5             0.250                     0.017         0.233
5035590      1-May-29        $ 309,258.56      79.97 6                  6             0.250                     0.017         0.483
5035598      1-May-29        $ 393,692.64      74.34 4                  4             0.250                     0.017         0.483
5035601      1-May-29        $ 337,736.32      75.96 2                  2             0.250                     0.017         0.483
5035676      1-May-29        $ 314,735.36      68.19 6                  6             0.250                     0.017         0.108
5035681      1-Jun-29        $ 348,000.00      58.00 0                  0             0.250                     0.017         1.358
5035685      1-Jun-29        $ 352,500.00      75.00 0                  0             0.250                     0.017         0.608
5035731      1-Jun-28        $ 364,112.30      79.99 0                  0             0.250                     0.017         0.733
5035752      1-Apr-29        $ 278,813.00      78.66 0                  0             0.250                     0.017         0.483
5035773      1-Jun-29        $ 315,200.00      79.20 0                  0             0.250                     0.017         0.733
5035792      1-Apr-29        $ 335,447.56      80.00 6                  6             0.250                     0.017         0.233
5035813      1-Apr-29        $ 313,508.61      72.35 1                  1             0.250                     0.017         0.483
5035833      1-May-29        $ 243,804.88      80.00 8                  8             0.250                     0.017         0.358
5035838      1-Mar-29        $ 283,297.55      77.81 5                  5             0.250                     0.017         0.233
5035841      1-Apr-29        $ 280,560.26      79.15 6                  6             0.250                     0.017         0.483
5035855      1-May-29        $ 431,654.54      80.00 4                  4             0.250                     0.017         0.358
5035877      1-May-29        $ 323,747.25      80.00 5                  5             0.250                     0.017         0.483
5035892      1-Apr-29        $ 295,536.79      80.00 9                  9             0.250                     0.017         0.483
5035897      1-May-29        $ 330,129.17      80.00 7                  7             0.250                     0.017         0.233
5035903      1-Mar-29        $ 321,163.60      80.00 0                  0             0.250                     0.017         0.000
5035925      1-Apr-29        $ 345,402.53      79.90 3                  3             0.250                     0.017         0.000
5035934      1-Apr-29        $ 357,117.47      80.00 7                  7             0.250                     0.017         0.733
5035942      1-Mar-29        $ 252,638.83      43.51 3                  3             0.250                     0.017         0.358
5035965      1-Feb-29        $ 310,941.71      80.00 1                  1             0.250                     0.017         0.108
5036037      1-Jun-29        $ 340,000.00      56.06 0                  0             0.250                     0.017         0.000
5036057      1-Jun-29        $ 274,000.00      67.65 0                  0             0.250                     0.017         0.483
5036174      1-Jun-29        $ 326,400.00      59.35 0                  0             0.250                     0.017         0.108
5036218      1-May-29        $ 640,674.42      74.99 2                  2             0.250                     0.017         0.233
5036227      1-May-29        $ 267,496.30      74.36 0                  0             0.250                     0.017         0.608
5036240      1-May-29        $ 284,777.67      60.64 7                  7             0.250                     0.017         0.483
5036261      1-May-29        $ 253,911.42      75.18 2                  2             0.250                     0.017         0.733
5036262      1-May-29        $ 287,775.33      72.00 3                  3             0.250                     0.017         0.483
5036276      1-May-29        $ 304,749.99      79.22 9                  9             0.250                     0.017         0.233
5036278      1-May-29        $ 281,019.45      75.00 5                  5             0.250                     0.017         0.233
5036291      1-May-29        $ 302,064.18      59.27 8                  8             0.250                     0.017         0.483
5036302      1-May-29        $ 247,811.29      80.00 9                  9             0.250                     0.017         0.608
5036323      1-May-29        $ 363,708.91      79.13 1                  1             0.250                     0.017         0.358
5036352      1-May-29        $ 253,791.80      76.51 0                  0             0.250                     0.017         0.233
5036373      1-May-29        $ 342,732.43      60.18 3                  3             0.250                     0.017         0.483
5036377      1-May-29        $ 264,366.55      70.00 5                  5             0.250                     0.017         0.000
5036401      1-May-29        $ 327,744.13      55.59 3                  3             0.250                     0.017         0.483
5036453      1-May-29        $ 288,480.33      84.91 3                  3 06          0.250                     0.017         0.608
5036468      1-May-29        $ 272,226.68      69.86 8                  8             0.250                     0.017         0.233
5036486      1-May-29        $ 332,477.24      44.37 4                  4             0.250                     0.017         0.233
5036491      1-May-29        $ 289,768.09      46.77 9                  9             0.250                     0.017         0.358
5036500      1-May-29        $ 459,622.93      71.88 3                  3             0.250                     0.017         0.233
5036512      1-May-29        $ 287,669.77      82.26 7                  7 01          0.250                     0.017         0.358
5036514      1-May-29        $ 297,267.92      85.00 2                  2 33          0.250                     0.017         0.483
5036526      1-May-29        $ 283,778.45      78.45 5                  5             0.250                     0.017         0.483
5036547      1-May-29        $ 639,948.54      49.27 4                  4             0.250                     0.017         0.000
5036582      1-Apr-29        $ 311,474.26      80.00 6                  6             0.250                     0.017         0.108
5036592      1-May-29        $ 274,774.58      61.11 8                  8             0.250                     0.017         0.233
5036644      1-Mar-29        $ 254,562.69      80.00 9                  9             0.250                     0.017         0.233
5036657      1-May-29        $ 648,468.02      59.00 2                  2             0.250                     0.017         0.233
5036684      1-May-29        $ 377,190.56      78.65 6                  6             0.250                     0.017         0.233
5036688      1-Jun-29        $ 427,000.00      79.07 0                  0             0.250                     0.017         1.233
5036697      1-Apr-29        $ 279,561.82      77.89 2                  2             0.250                     0.017         0.483
5036709      1-May-29        $ 284,760.56      71.97 6                  6             0.250                     0.017         0.108
5036724      1-May-29        $ 342,718.84      70.00 4                  4             0.250                     0.017         0.233
5036735      1-Jan-29        $ 266,888.73      80.00 3                  3             0.250                     0.017         0.233
5036737      1-May-29        $ 264,593.42      80.00 2                  2             0.250                     0.017         0.483
5036762      1-Apr-29        $ 279,371.37      79.43 7                  7             0.250                     0.017         0.000
5036766      1-May-29        $ 369,054.64      89.00 4                  4 11          0.250                     0.017         0.358
5036823      1-Apr-29        $ 339,454.59      80.00 9                  9             0.250                     0.017         0.358
5036846      1-Jun-29        $ 500,000.00      78.13 0                  0             0.250                     0.017         0.233
5036858      1-Apr-29        $ 319,473.87      80.00 7                  7             0.250                     0.017         0.233
5036919      1-May-29        $ 564,559.24      74.34 4                  4             0.250                     0.017         0.483
5037129      1-Jun-29        $ 375,000.00      50.40 0                  0             0.250                     0.017         0.108
5037130      1-Jun-29        $ 320,000.00      39.02 0                  0             0.250                     0.017         0.608
5037209      1-May-29        $ 269,778.68      73.97 8                  8             0.250                     0.017         0.233
5037218      1-May-29        $ 399,672.13      71.43 3                  3             0.250                     0.017         0.233
5037234      1-May-29        $ 325,252.32      52.08 2                  2             0.250                     0.017         0.608
5037283      1-May-29        $ 351,711.46      88.00 6                  6 33          0.250                     0.017         0.233
5037313      1-May-29        $ 299,771.72      75.38 2                  2             0.250                     0.017         0.608
5037339      1-May-29        $ 319,750.37      67.37 7                  7             0.250                     0.017         0.483
5037366      1-May-29        $ 454,562.40      62.74 0                  0             0.250                     0.017         0.733
5037382      1-May-29        $ 373,193.84      90.00 4                  4 33          0.250                     0.017         0.233
5037403      1-May-29        $ 467,597.06      78.00 6                  6             0.250                     0.017         0.000
5037405      1-Jun-29        $ 296,600.00      89.89 0                  0 17          0.250                     0.017         0.983
5037408      1-May-29        $ 352,710.65      74.32 5                  5             0.250                     0.017         0.233
5037430      1-May-29        $ 339,721.30      70.83 0                  0             0.250                     0.017         0.233
5037448      1-May-29        $ 471,640.85      69.93 5                  5             0.250                     0.017         0.608
5037466      1-May-29        $ 513,285.57      75.00 7                  7             0.250                     0.017         0.000
5037470      1-May-29        $ 307,747.53      73.33 3                  3             0.250                     0.017         0.233
5037479      1-Jun-29        $ 270,000.00      90.00 0                  0 33          0.250                     0.017         0.358
5037485      1-May-29        $ 323,209.95      69.56 5                  5             0.250                     0.017         0.733
5037495      1-May-29        $ 279,770.48      73.68 8                  8             0.250                     0.017         0.233
5037504      1-May-29        $ 249,795.07      79.37 7                  7             0.250                     0.017         0.233
5037523      1-May-29        $ 449,631.13      54.55 3                  3             0.250                     0.017         0.233
5037652      1-May-29        $ 266,806.75      93.68 5                  5 11          0.250                     0.017         0.858
5037736      1-Jun-29        $ 255,200.00      80.00 0                  0             0.250                     0.017         0.483
5037753      1-Jun-29        $ 650,000.00      60.47 0                  0             0.250                     0.017         0.608
5037815      1-May-29        $ 319,750.37      59.53 7                  7             0.250                     0.017         0.483
5037937      1-Jun-29        $ 295,000.00      69.41 0                  0             0.250                     0.017         0.608
5038205      1-May-29        $ 244,804.07      77.29 7                  7             0.250                     0.017         0.358
5038206      1-Jun-29        $ 314,000.00      75.85 0                  0             0.250                     0.017         0.233
5038273      1-May-29        $ 327,744.13      80.00 3                  3             0.250                     0.017         0.483
5038295      1-May-29        $ 259,786.88      68.42 8                  8             0.250                     0.017         0.233
5038320      1-Jun-29        $ 262,500.00      73.94 0                  0             0.250                     0.017         0.483
5038337      1-May-29        $ 339,728.10      74.40 0                  0             0.250                     0.017         0.358
5038366      1-May-29        $ 331,741.00      80.00 0                  0             0.250                     0.017         0.483
5038393      1-May-29        $ 287,752.03      80.00 3                  3             0.250                     0.017         0.000
5038406      1-May-29        $ 354,723.06      78.89 6                  6             0.250                     0.017         0.483
5038561      1-Jun-29        $ 390,000.00      69.64 0                  0             0.250                     0.017         0.608
5038667      1-Apr-29        $ 398,559.65      80.00 5                  5             0.250                     0.017         0.358
5038678      1-Jun-29        $ 500,000.00      67.11 0                  0             0.250                     0.017         0.733
5039190      1-Jun-29        $ 334,400.00      79.62 0                  0             0.250                     0.017         0.233
5039209      1-May-29        $ 241,316.23      69.20 3                  3             0.250                     0.017         0.608
5039223      1-Jun-29        $ 280,350.00      89.00 0                  0 33          0.250                     0.017         0.358
5039242      1-May-29        $ 278,771.30      79.71 0                  0             0.250                     0.017         0.233
5039262      1-May-29        $ 296,238.40      79.07 0                  0             0.250                     0.017         0.000
5039317      1-May-29        $ 351,718.51      80.00 1                  1             0.250                     0.017         0.358
5039366      1-May-29        $ 277,783.13      79.43 3                  3             0.250                     0.017         0.483
5039385      1-May-29        $ 374,714.65      75.00 5                  5             0.250                     0.017         0.608
5039406      1-May-29        $ 414,676.25      78.30 5                  5             0.250                     0.017         0.483
5039432      1-May-29        $ 515,587.36      80.00 6                  6             0.250                     0.017         0.358
5039437      1-Jun-29        $ 266,000.00      82.35 0                  0 33          0.250                     0.017         0.358
5039521      1-Jan-29        $ 355,975.62      79.82 2                  2             0.250                     0.017         0.000
5039707      1-Jun-29        $ 500,000.00      79.21 0                  0             0.250                     0.017         0.233
5039721      1-May-29        $ 113,517.79      80.00 9                  9             0.250                     0.017         0.858
5039759      1-May-29        $ 114,912.50      37.58 0                  0             0.250                     0.017         0.608
5039835      1-May-29        $ 261,140.12      80.00 2                  2             0.250                     0.017         0.483
5039843      1-Jun-29        $ 350,000.00      65.42 0                  0             0.250                     0.017         0.608
5039849      1-Jun-29        $ 452,000.00      62.34 0                  0             0.250                     0.017         0.733
5039853      1-May-29        $ 262,200.33      80.00 3                  3             0.250                     0.017         0.608
5040141      1-Jun-29        $ 600,000.00      80.00 0                  0             0.250                     0.017         0.608
5040236      1-May-29        $ 329,722.76      78.38 6                  6             0.250                     0.017         0.108
5040253      1-Jun-29        $ 281,250.00      90.00 0                  0 06          0.250                     0.017         0.233
5040347      1-May-29        $ 191,864.48      80.00 8                  8             0.250                     0.017         0.983
5040374      1-May-29         $ 76,942.85      50.33 5                  5             0.250                     0.017         0.733
5040383      1-May-29        $ 246,816.69      56.14 9                  9             0.250                     0.017         0.733
5040403      1-May-29        $ 324,540.26      80.00 6                  6             0.250                     0.017         0.358
5040413      1-May-29        $ 295,774.77      78.31 7                  7             0.250                     0.017         0.608
5040579      1-May-29        $ 302,264.02      74.69 2                  2             0.250                     0.017         0.483
5040614      1-Jun-29        $ 328,500.00      42.39 0                  0             0.250                     0.017         0.233
5040634      1-Apr-29        $ 291,575.98      68.71 8                  8             0.250                     0.017         0.858
5040643      1-May-29        $ 395,720.51      77.65 1                  1             0.250                     0.017         0.983
5040678      1-Jun-29        $ 450,000.00      50.00 0                  0             0.250                     0.017         0.483
5040706      1-Apr-29        $ 519,225.75      80.00 5                  5             0.250                     0.017         0.733
5040750      1-May-29        $ 287,746.77      80.00 7                  7             0.250                     0.017         0.983
5040785      1-May-29        $ 246,821.23      75.30 3                  3             0.250                     0.017         0.858
5040797      1-May-29        $ 291,772.22      74.49 2                  2             0.250                     0.017         0.483
5040798      1-May-29        $ 164,674.60      80.00 0                  0             0.250                     0.017         0.608
5040807      1-May-29        $ 303,768.68      80.00 8                  8             0.250                     0.017         0.608
5040810      1-May-29        $ 174,870.12      69.44 2                  2             0.250                     0.017         0.733
5040812      1-May-29        $ 299,777.35      79.68 5                  5             0.250                     0.017         0.733
5041160      1-May-29        $ 256,199.99      72.23 9                  9             0.250                     0.017         0.483
5041183      1-Jun-29        $ 258,000.00      78.18 0                  0             0.250                     0.017         0.608
5041202      1-Jun-29        $ 286,400.00      77.41 0                  0             0.250                     0.017         0.608
5041233      1-May-29        $ 474,656.20      25.00 0                  0             0.250                     0.017         0.858
5041333      1-Jun-29        $ 330,000.00      75.00 0                  0             0.250                     0.017         0.608
5041514      1-May-29        $ 256,299.90      90.00 0                  0 12          0.250                     0.017         0.483
5041547      1-May-29        $ 308,559.10      80.00 0                  0             0.250                     0.017         0.483
5041692      1-May-29        $ 287,775.33      90.00 3                  3 01          0.250                     0.017         0.483
5041709      1-May-29        $ 582,510.21      74.74 1                  1             0.250                     0.017         0.108
5041952      1-Aug-28        $ 328,594.81      73.56 1                  1             0.250                     0.017         0.983
5041962      1-Mar-29        $ 448,025.00      75.00 0                  0             0.250                     0.017         0.000
5041971      1-Apr-29        $ 363,458.04      79.48 4                  4             0.250                     0.017         0.733
5042002      1-Jun-29        $ 540,000.00      80.00 0                  0             0.250                     0.017         0.233
5042026      1-Jun-29        $ 296,000.00      74.94 0                  0             0.250                     0.017         0.358
5042037      1-Jun-29        $ 270,300.00      71.13 0                  0             0.250                     0.017         0.233
5042050      1-May-29        $ 293,276.67      94.98 7                  7 33          0.250                     0.017         0.608
5042052      1-Apr-29        $ 648,957.31      79.46 1                  1             0.250                     0.017         0.358
5042069      1-Jun-29        $ 286,000.00      73.33 0                  0             0.250                     0.017         0.358
5042087      1-May-29        $ 250,818.33      79.94 3                  3             0.250                     0.017         0.858
5042108      1-May-29        $ 286,259.30      76.40 0                  0             0.250                     0.017         0.108
5042185      1-Jun-29        $ 545,000.00      57.37 0                  0             0.250                     0.017         0.608
5042195      1-Jun-29        $ 281,000.00      53.52 0                  0             0.250                     0.017         0.358
5042482      1-May-29        $ 314,772.01      87.50 1                  1 06          0.250                     0.017         0.858
5042485      1-May-29        $ 259,786.88      74.24 8                  8             0.250                     0.017         0.233
5042576      1-May-29        $ 219,819.67      29.33 7                  7             0.250                     0.017         0.233
5042578      1-May-29        $ 173,764.35      74.99 5                  5             0.250                     0.017         0.483
5042913      1-Jun-29        $ 100,000.00      55.56 0                  0             0.250                     0.017         1.608
5042930      1-Jun-29        $ 330,000.00      60.55 0                  0             0.250                     0.017         0.233
5042953      1-Jun-29        $ 375,000.00      75.00 0                  0             0.250                     0.017         0.000
5042971      1-May-29        $ 295,757.37      89.70 7                  7 33          0.250                     0.017         0.233
5043006      1-Jun-29        $ 325,000.00      72.22 0                  0             0.250                     0.017         0.233
5043064      1-Mar-29        $ 395,494.95      58.74 5                  5             0.250                     0.017         0.108
5043065      1-Jun-29        $ 468,965.00      70.00 0                  0             0.250                     0.017         0.733
5043086      1-May-29         $ 79,934.42      61.54 2                  2             0.250                     0.017         0.233
5043106      1-May-29        $ 399,687.96      72.07 6                  6             0.250                     0.017         0.483
5043352      1-Jan-29        $ 297,899.20      65.22 0                  0             0.250                     0.017         0.483
5043361      1-Apr-29        $ 266,571.70      70.45 0                  0             0.250                     0.017         0.358
5043431      1-Dec-28        $ 232,915.06      90.00 6                  6 12          0.250                     0.017         0.608
5043510      1-Sep-28        $ 249,026.76      68.02 6                  6             0.250                     0.017         0.858
5043549      1-Feb-29        $ 233,732.29      57.32 9                  9             0.250                     0.017         0.858
5043576      1-Mar-29        $ 648,347.70      76.47 0                  0             0.250                     0.017         0.233
5043839      1-Jun-29        $ 340,000.00      53.97 0                  0             0.250                     0.017         0.233
5043889      1-May-29        $ 283,794.46      80.00 6                  6             0.250                     0.017         0.858
5043969      1-May-29        $ 262,589.85      90.00 5                  5             0.250                     0.017         0.358
5044286      1-May-29        $ 296,600.62      88.61 2                  2 13          0.250                     0.017         0.108
5044288      1-Jun-29        $ 476,800.00      80.00 0                  0             0.250                     0.017         0.108
5047319      1-Jun-29        $ 256,000.00      80.00 0                  0             0.250                     0.017         0.358
5047370      1-May-29        $ 337,736.33      79.53 3                  3             0.250                     0.017         0.483
5047391      1-Jun-29        $ 299,000.00      74.75 0                  0             0.250                     0.017         0.000
5047397      1-May-24        $ 347,570.40      80.00 0                  0             0.250                     0.017         0.233
5047401      1-Jun-29        $ 300,000.00      75.00 0                  0             0.250                     0.017         0.233
5047409      1-Jun-29        $ 293,000.00      65.11 0                  0             0.250                     0.017         0.233
5047410      1-Jun-29        $ 371,500.00      72.84 0                  0             0.250                     0.017         0.608
5047426      1-Jun-29        $ 424,000.00      78.52 0                  0             0.250                     0.017         0.358
5047440      1-Jun-29        $ 300,000.00      63.83 0                  0             0.250                     0.017         0.233
5047455      1-Jun-29        $ 312,500.00      65.10 0                  0             0.250                     0.017         0.233
5047459      1-Jun-29        $ 305,000.00      74.39 0                  0             0.250                     0.017         0.233
5047465      1-Jun-29        $ 347,000.00      78.86 0                  0             0.250                     0.017         0.608
5047468      1-Jun-29        $ 316,350.00      66.60 0                  0             0.250                     0.017         0.233
5047474      1-Jun-29        $ 296,600.00      70.79 0                  0             0.250                     0.017         0.233
5047490      1-Jun-29        $ 343,000.00      65.96 0                  0             0.250                     0.017         0.608
5047515      1-Jun-29        $ 532,000.00      59.78 0                  0             0.250                     0.017         0.358
5047517      1-Jun-29        $ 330,000.00      67.35 0                  0             0.250                     0.017         0.733
5047542      1-Jun-29        $ 388,000.00      80.00 0                  0             0.250                     0.017         0.108
5047580      1-Jun-29        $ 331,000.00      56.10 0                  0             0.250                     0.017         0.358
5047699      1-Jun-29        $ 390,000.00      48.75 0                  0             0.250                     0.017         0.233
5047702      1-Jun-29        $ 307,000.00      60.79 0                  0             0.250                     0.017         0.358
5047716      1-Jun-29        $ 345,000.00      67.38 0                  0             0.250                     0.017         0.483
5047720      1-Jun-29         $ 75,600.00      70.00 0                  0             0.250                     0.017         0.858
5047737      1-Jun-29        $ 413,000.00      64.23 0                  0             0.250                     0.017         0.108
5047771      1-Jun-29        $ 471,000.00      72.46 0                  0             0.250                     0.017         0.233
5047801      1-Jun-29        $ 384,400.00      78.45 0                  0             0.250                     0.017         0.608
5047812      1-Jun-29        $ 355,000.00      72.45 0                  0             0.250                     0.017         0.483
5047828      1-Jun-29        $ 312,000.00      52.00 0                  0             0.250                     0.017         0.733
5047845      1-Jun-29        $ 380,000.00      39.38 0                  0             0.250                     0.017         0.608
5047850      1-May-29        $ 375,491.96      34.16 6                  6             0.250                     0.017         0.233
5047874      1-Jun-29        $ 420,000.00      76.36 0                  0             0.250                     0.017         0.233
5047891      1-Jun-29        $ 440,000.00      80.00 0                  0             0.250                     0.017         0.233
5047916      1-Jun-29        $ 320,000.00      74.42 0                  0             0.250                     0.017         0.233
5047951      1-Jun-29        $ 252,000.00      80.00 0                  0             0.250                     0.017         0.233
5047958      1-Jun-29        $ 581,000.00      77.47 0                  0             0.250                     0.017         0.358
5047984      1-Jun-29        $ 241,000.00      79.02 0                  0             0.250                     0.017         0.608
5048022      1-Jun-29        $ 247,000.00      79.42 0                  0             0.250                     0.017         0.233
5048026      1-Jun-29        $ 275,950.00      79.99 0                  0             0.250                     0.017         0.608
5049097      1-Jun-29        $ 250,000.00      86.81 0                  0 33          0.250                     0.017         0.858
5054590      1-Jun-29        $ 532,000.00      80.00 0                  0             0.250                     0.017         0.358
7623550      1-Apr-29        $ 299,391.12      94.64 2                  2 11          0.250                     0.017         0.608

            $ 712,759,563.61                     1


COUNT:                                1981
WAC:                           7.173711633
WAM:                           358.0321408
WALTV:                         71.29066849

</TABLE>


<PAGE>

                                   EXHIBIT F-3

            [Schedule of Mortgage Loans Serviced by Other Servicers]


<TABLE>
NASCOR
NMI / 1999-18 Exhibit F-3 (Part A)
30 YEAR FIXED RATE NON-RELOCATION LOANS

<CAPTION>

(i)         (ii)                                       (iii)     (iv)      (v)        (vi)         (vii)       (viii)
- -----       ---------------------------     -----    --------  -------- --------   ----------    --------    ----------
                                                                           NET
MORTGAGE                                                       MORTGAGE MORTGAGE     CURRENT     ORIGINAL    SCHEDULED
LOAN                                         ZIP     PROPERTY  INTEREST INTEREST     MONTHLY      TERM TO     MATURITY
NUMBER      CITY                  STATE      CODE      TYPE      RATE     RATE       PAYMENT     MATURITY       DATE
- --------    ----------------------------------------------------------- --------   ----------    --------   -----------
<S>        <C>                   <C>       <C>        <C>      <C>       <C>       <C>            <C>       <C>
4836563     BROOKLYN               NY       11215       COP     7.625     6.500     $ 1,953.51     360      1-Jun-28
4859300     FRESNO                 CA       93706       SFD     7.375     6.500     $ 2,434.64     360      1-Jun-28
4906133     ALTA                   WY       83422       SFD     7.625     6.500     $ 9,909.11     360      1-Sep-28
4944998     PEBBLE BEACH           CA       93953       SFD     7.250     6.500    $ 11,453.74     360      1-Oct-28
4959907     DELUTH                 GA       30136       SFD     6.875     6.500     $ 3,270.84     339      1-Jun-26
4961205     RAMONA                 CA       92065       SFD     7.125     6.500     $ 1,684.30     360      1-Dec-28
4962689     KAILUA                 HI       96734       SFD     6.875     6.500     $ 2,622.45     360      1-Nov-28
4962792     INTERLAKEN ESTATES     NJ       07712       SFD     7.375     6.500     $ 2,072.02     360      1-Dec-28
4962859     ALEXANDRIA             VA       22314       SFD     7.375     6.500     $ 3,453.37     360      1-Nov-28
4963238     CHAPEL HILL            NC       27514       SFD     7.500     6.500     $ 3,348.65     360      1-Dec-28
4963288     DISNEY                 OK       74340       SFD     7.000     6.500     $ 1,746.41     360      1-Dec-28
4963322     DOUGLAS                MI       49406       SFD     7.375     6.500     $ 1,830.28     360      1-Nov-28
4963337     HENDERSON              NV       89012       SFD     7.375     6.500     $ 1,933.89     360      1-Oct-28
4963362     NAPLES                 FL       34109       SFD     6.250     5.983     $ 1,970.29     360      1-Nov-28
4963395     SAN FRANCISCO          CA       94114       LCO     7.125     6.500     $ 2,155.89     360      1-Dec-28
4967917     BROOKLINE              MA       02446       SFD     7.250     6.500     $ 2,421.73     360      1-Jan-29
4972463     PEACHTREE CITY         GA       30269       SFD     7.125     6.500     $ 2,019.35     334      1-Jul-26
4972529     BOYNTON BEACH          FL       33436       LCO     7.750     6.500     $ 2,090.98     360      1-May-28
4972575     DELAND                 FL       32724       SFD     6.875     6.500     $ 1,863.35     306      1-Jun-24
4975828     LODI TOWNSHIP          MI       48176       SFD     7.250     6.500     $ 1,903.96     360      1-Nov-28
4977055     BRUNSWICK              GA       31520       SFD     7.250     6.500     $ 1,552.94     360      1-Sep-28
4981357     TIBURON                CA       94920       SFD     7.500     6.500    $ 13,984.30     360      1-Jan-29
4981400     INDIAN WELLS           CA       92210       SFD     7.625     6.500    $ 14,638.57     240      1-Aug-18
4984536     RANCHO MIRAGE          CA       92270       LCO     7.375     6.500     $ 1,699.93     360      1-Jan-29
4984553     COLFAX                 CA       95736       SFD     7.500     6.500     $ 2,342.36     360      1-Feb-29
4984591     BENSENVILLE            IL       60106       SFD     6.875     6.500     $ 2,380.71     360      1-Jan-29
4984596     INVERNESS              IL       60010       SFD     7.750     6.500     $ 1,922.85     360      1-Jan-29
4987703     JACKSONVILLE           FL       32224       SFD     7.375     6.500     $ 1,706.62     263      1-Aug-20
4988563     SAINT SIMONS ISLAND    GA       31522       LCO     7.500     6.500     $ 1,957.80     360      1-May-28
4992024     BALL GROUND            GA       30107       SFD     7.000     6.500     $ 2,744.37     360      1-Mar-29
4992193     DUNSTABLE              MA       01827       SFD     7.000     6.500     $ 1,656.61     360      1-Jun-29
4992232     NASHVILLE              TN       37221       SFD     7.000     6.500     $ 1,961.98     360      1-Feb-29
4992487     OCALA                  FL       34471       SFD     6.500     6.233     $ 1,580.17     360      1-Feb-29
4997486     PORT ST. LUCIE         FL       34986       PUD     7.250     6.500     $ 2,038.20     355      1-Apr-28
4997682     TAMPA                  FL       33606       SFD     7.125     6.500     $ 3,114.00     341      1-Jul-27
4997693     ORMOND BEACH           FL       32176       SFD     7.375     6.500     $ 2,748.70     277      1-Aug-21
4997699     BOCA RATON             FL       33428       SFD     7.125     6.500     $ 2,004.99     360      1-Jan-29
4997707     JACKSONVILLE           FL       32256       SFD     6.750     6.483     $ 3,587.89     316      1-Apr-25
4999192     BRIGHTON               CO       80601       SFD     6.875     6.500     $ 1,944.51     360      1-Feb-29
4999421     PEPPER PIKE            OH       44124       SFD     7.500     6.500     $ 2,072.48     360      1-May-29
5001135     MADISON                AL       35758       SFD     7.250     6.500     $ 2,046.53     360      1-May-29
5001616     SOUTHERN SHORES        NC       27949       SFD     7.000     6.500     $ 1,995.91     360      1-Oct-28
5001630     HERNDON                VA       20171       SFD     6.875     6.500     $ 1,616.05     360      1-Mar-29
5001653     PORTLAND               OR       97219       SFD     7.000     6.500     $ 1,783.02     360      1-Mar-29
5001829     MIDDLETOWN             MD       21769       SFD     6.875     6.500     $ 1,786.85     360      1-Mar-29
5001834     BETHUSDA               MD       20816       SFD     7.250     6.500     $ 2,135.22     360      1-Mar-29
5001841     HOPKINTON              MA       01748       SFD     7.125     6.500     $ 3,503.34     360      1-Mar-29
5001873     CAMPBELL               CA       95008       SFD     7.250     6.500     $ 1,841.88     360      1-Mar-29
5001879     PARKER                 CO       80134       SFD     7.125     6.500     $ 2,442.23     360      1-Oct-28
5001890     MCLEAN                 VA       22101       SFD     6.750     6.483     $ 1,699.33     360      1-Mar-29
5001919     BELLEVUE               WA       98006       SFD     7.125     6.500     $ 1,960.53     360      1-Mar-29
5001922     MENLO PARK             CA       94025       SFD     7.250     6.500     $ 2,967.47     360      1-Mar-29
5001926     HARRISBURG             PA       17112       SFD     6.750     6.483     $ 2,852.22     360      1-Mar-29
5001929     MCLEAN                 VA       22102       SFD     7.125     6.500     $ 1,768.52     360      1-Mar-29
5001934     SCOTTSDALE             AZ       85262       SFD     6.750     6.483     $ 3,236.51     360      1-Mar-29
5001948     SISTERS                OR       97759       SFD     6.875     6.500     $ 2,759.11     360      1-Mar-29
5001949     WARRENTON              VA       20187       SFD     7.125     6.500     $ 1,711.25     360      1-Mar-29
5001992     MARIETTA               GA       30062       SFD     6.875     6.500     $ 2,259.84     360      1-Mar-29
5001998     ISSAQUAH               WA       98029       SFD     7.000     6.500     $ 4,191.41     360      1-Feb-29
5002029     ATLANTA                GA       30328       SFD     6.875     6.500     $ 1,631.82     360      1-Mar-29
5002047     EASTON                 MD       21601       SFD     7.250     6.500     $ 2,012.42     360      1-Mar-29
5002063     OAKTON                 VA       22124       SFD     6.875     6.500     $ 2,217.80     360      1-Mar-29
5002082     PORTLAND               OR       97229       SFD     6.875     6.500     $ 3,192.68     360      1-Mar-29
5002088     BEND                   OR       97701       SFD     7.125     6.500     $ 3,200.17     360      1-Mar-29
5002102     JACKSON                TN       38305       SFD     7.250     6.500     $ 2,088.01     360      1-Mar-29
5002106     EUGENE                 OR       97401       SFD     7.250     6.500     $ 2,501.88     360      1-Mar-29
5002107     PHOENIX                AZ       85021       SFD     7.000     6.500     $ 4,018.43     360      1-Mar-29
5002112     VANCOUVER              WA       98665       SFD     6.875     6.500     $ 1,773.71     360      1-Mar-29
5002124     GENEVA                 IL       60134       SFD     7.375     6.500     $ 1,756.39     360      1-Mar-29
5002129     SCOTTSDALE             AZ       85259       SFD     6.875     6.500     $ 2,562.02     360      1-Mar-29
5002133     POTOMAC                MD       20854       SFD     6.875     6.500     $ 3,898.88     360      1-Mar-29
5002140     MANASSAS               VA       20112       SFD     7.000     6.500     $ 1,995.91     360      1-Mar-29
5002141     DUVALL                 WA       98019       SFD     6.875     6.500     $ 1,996.74     360      1-Mar-29
5002151     GREEN BROOK            NJ       08812       SFD     7.000     6.500     $ 2,162.24     360      1-Mar-29
5002919     RENO                   NV       89509       SFD     7.000     6.500     $ 1,922.72     360      1-Mar-29
5002921     GAITHERSBURG           MD       20878       SFD     6.875     6.500     $ 3,284.64     360      1-Mar-29
5002932     PORTLAND               OR       97210       SFD     6.875     6.500     $ 2,496.33     360      1-Mar-29
5002943     LOS ALTOS              CA       94022       SFD     7.250     6.500     $ 2,885.61     360      1-Mar-29
5002966     SAN FRANCISCO          CA       94127       SFD     7.250     6.500     $ 2,435.37     360      1-Feb-29
5002974     SAN JOSE               CA       95120       SFD     7.125     6.500     $ 2,742.04     360      1-Mar-29
5003053     LIBERTYVILLE           IL       60048       SFD     7.000     6.500     $ 1,889.46     360      1-Feb-29
5003072     RIVER FOREST           IL       60305       SFD     7.000     6.500     $ 2,320.58     360      1-Mar-29
5003085     ELDERSBURG             MD       21784       SFD     7.125     6.500     $ 1,565.05     360      1-Mar-29
5003088     NEW LENOX              IL       60451       SFD     7.250     6.500     $ 1,684.98     360      1-Mar-29
5003093     LOS ALTOS              CA       94403       SFD     6.750     6.483     $ 2,107.95     360      1-Mar-29
5003105     NEWCASTLE              WA       98058       SFD     7.000     6.500     $ 1,756.40     360      1-Mar-29
5003122     WAYNE                  IL       60184       SFD     6.875     6.500     $ 1,690.28     360      1-Feb-29
5003567     DALLAS                 TX       75252       SFD     7.500     6.500     $ 1,771.81     360      1-Mar-29
5003582     PLEASANTON             CA       94588       SFD     7.000     6.500     $ 2,421.71     360      1-Mar-29
5003612     PLEASANTON             CA       94588       SFD     6.875     6.500     $ 1,786.85     360      1-Mar-29
5003623     DREXEL HILL            PA       19026       SFD     7.250     6.500     $ 1,903.27     360      1-Mar-29
5003706     PALO ALTO              CA       94306       SFD     7.125     6.500     $ 2,053.50     360      1-Mar-29
5003738     WOODSTOCK              MD       21163       SFD     7.125     6.500     $ 2,166.01     360      1-Mar-29
5003743     EL SOBRANTE            CA       94803       SFD     6.625     6.358     $ 1,782.63     360      1-Mar-29
5003764     SALEM                  OR       97303       SFD     6.875     6.500     $ 2,575.17     360      1-Mar-29
5003778     CARLISLE               MA       01741       SFD     7.250     6.500     $ 2,884.88     240      1-Mar-19
5003783     SANTA CLARA            CA       95050       SFD     7.250     6.500     $ 2,087.46     360      1-Mar-29
5003784     APEX                   NC       27502       SFD     6.875     6.500     $ 1,796.05     360      1-Mar-29
5003787     FAIRFAX STATION        VA       22039       SFD     7.125     6.500     $ 1,802.88     360      1-Mar-29
5003796     UNION CITY             CA       94587       SFD     6.875     6.500     $ 1,997.06     360      1-Mar-29
5003798     PHOENIX                AZ       85018       SFD     7.000     6.500     $ 3,129.59     360      1-Mar-29
5003800     FOLSOM                 CA       95630       SFD     7.375     6.500     $ 2,417.37     360      1-Mar-29
5003813     TUCSON                 AZ       85737       SFD     7.500     6.500     $ 2,640.93     360      1-Mar-29
5003819     POTOMAC                MD       20854       SFD     6.875     6.500     $ 3,967.85     360      1-Nov-28
5003828     PORTLAND               OR       97229       SFD     6.875     6.500     $ 2,029.13     360      1-Apr-29
5003833     SAN JOSE               CA       95125       SFD     6.875     6.500     $ 2,627.72     360      1-Mar-29
5003854     EL DORADO HILLS        CA       95762       SFD     6.875     6.500     $ 2,207.28     360      1-Feb-29
5003860     SPOKANE                WA       99208       SFD     7.250     6.500     $ 1,886.22     360      1-Mar-29
5003886     FRANKLIN               TN       37067       SFD     7.000     6.500     $ 1,969.30     360      1-Mar-29
5003901     PORTLAND               OR       97266       SFD     6.875     6.500     $ 1,943.99     360      1-Mar-29
5003910     BELLEAIR               FL       33756       SFD     7.125     6.500     $ 2,358.01     360      1-Mar-29
5003983     LORTON                 VA       22079       SFD     6.625     6.358     $ 1,654.89     360      1-Mar-29
5004366     GLENDALE               CA       91208       SFD     7.500     6.500     $ 2,796.86     360      1-Jan-29
5004371     READING                PA       19605       SFD     6.500     6.233      $ 670.00      360      1-Feb-29
5004385     MONTEREY               CA       93940       SFD     7.375     6.500     $ 2,348.29     360      1-Feb-29
5004548     BABYLON                NY       11702       SFD     7.000     6.500     $ 1,037.87     360      1-Mar-26
5004693     LOS ANGELES            CA       90056       SFD     7.500     6.500     $ 2,007.62     287      1-Nov-22
5004762     TEMECULA               CA       92592       SFD     7.375     6.500      $ 794.28      360      1-Feb-29
5005075     ROHNERT PARK           CA       94928       SFD     7.250     6.500     $ 1,746.37     360      1-Oct-28
5005165     FAIRFAX                VA       22033       SFD     6.750     6.483     $ 2,137.78     360      1-Feb-29
5005227     STANWOOD               WA       98292       SFD     6.875     6.500     $ 2,200.72     360      1-Mar-29
5005280     HOUSTON                TX       77070       SFD     7.750     6.500     $ 1,644.17     360      1-Dec-28
5005456     REDONDO BEACH          CA       90278       SFD     7.125     6.500     $ 1,422.89     360      1-Mar-29
5005536     ROCKLAND               DE       19732       SFD     7.125     6.500     $ 1,807.59     360      1-Mar-29
5005583     WESTWOOD               MA       02090       SFD     7.125     6.500     $ 2,027.22     360      1-Mar-29
5005868     SUNNYVALE              CA       94089       SFD     8.625     6.500     $ 2,800.04     360      1-Nov-27
5005986     ISSAQUAH               WA       98029       SFD     7.125     6.500     $ 1,987.47     360      1-Oct-28
5006160     CAPE MAY               NJ       08204       SFD     8.750     6.500     $ 2,021.82     360      1-Jul-28
5006731     BATON ROUGE            LA       70810       SFD     6.875     6.500     $ 2,627.72     360      1-May-29
5007740     TAMPA                  FL       33629       SFD     7.250     6.500     $ 3,034.08     350      1-Apr-28
5007765     NASHVILLE              TN       37215       SFD     6.500     6.233     $ 2,000.88     346      1-Oct-27
5007770     SAVANNAH               GA       31405       SFD     7.125     6.500     $ 1,684.30     360      1-Oct-28
5008434     JACKSONVILLE           FL       32225       SFD     7.500     6.500     $ 2,393.72     351      1-Dec-27
5008451     FORT LAUDERDALE        FL       33301       SFD     7.000     6.500     $ 3,648.41     360      1-Feb-29
5008558     LOUDON                 TN       37774       SFD     6.875     6.500     $ 2,154.73     360      1-Mar-29
5009225     BRENTWOOD              TN       37027       SFD     6.625     6.358     $ 2,829.20     350      1-Jan-28
5009372     EAST ELMHURST          NY       11369       SFD     7.500     6.500      $ 929.41      264      1-Dec-20
5009587     NEW YORK               NY       10010       COP     7.500     6.500      $ 996.38      360      1-Jan-29
5009619     MALONE                 NY       12953       SFD     8.125     6.500      $ 710.01      360      1-Feb-29
5009662     SCARSDALE              NY       10583       SFD     7.375     6.500     $ 3,056.23     360      1-Mar-29
5010186     HOLLYWOOD              FL       33019       SFD     7.625     6.500     $ 2,272.02     360      1-Mar-29
5011145     ATLANTA                GA       30342       SFD     7.000     6.500     $ 2,054.45     360      1-Mar-29
5011191     OVIEDO                 FL       32765       SFD     6.750     6.483     $ 1,608.52     360      1-Apr-29
5011237     ATHENS                 GA       30607       SFD     7.000     6.500     $ 2,894.07     360      1-Mar-29
5011238     RALEIGH                NC       27615       SFD     6.875     6.500     $ 1,839.40     360      1-Apr-29
5011257     ATLANTA                GA       30328       SFD     7.125     6.500     $ 3,115.27     360      1-Dec-28
5011283     INDIAN SHORES          FL       34635       HCO     7.750     6.500     $ 1,755.21     314      1-Jan-25
5011290     ATLANTA                GA       30305       SFD     6.750     6.483     $ 2,432.24     360      1-Nov-28
5011298     ATLANTA                GA       30309       SFD     6.750     6.483     $ 4,215.89     360      1-Nov-28
5023152     BOULDER                CO       80301       SFD     6.750     6.483     $ 2,756.54     360      1-Feb-29
5023181     ENGLEWOOD              CO       80110       SFD     7.250     6.500     $ 2,387.62     360      1-Mar-29
5023197     SAN RAFAEL             CA       94901       SFD     7.125     6.500     $ 2,142.42     360      1-Apr-29
5023245     SANTA ROSA             CA       95405       SFD     7.250     6.500     $ 1,084.66     360      1-Mar-29
5023255     ARCADIA                CA       91007       SFD     7.250     6.500     $ 2,449.01     360      1-Mar-29
5023266     MIDDLETOWN             OH       45044       SFD     6.875     6.500      $ 549.19      360      1-Apr-29
5023277     SNOWMASS VILLAGE       CO       81615       SFD     7.000     6.500     $ 1,995.91     360      1-Mar-29
5023282     LEWISVILLE             TX       75067       SFD     7.250     6.500      $ 741.53      360      1-Apr-29
5023283     SOUTH JORDAN           UT       84095       SFD     7.375     6.500     $ 1,381.36     360      1-Mar-29
5023298     SAN MARINO             CA       91108       SFD     7.750     6.500     $ 5,086.53     360      1-Mar-29
5023308     LAFAYETTE              CO       80026       SFD     7.125     6.500     $ 1,765.14     360      1-Mar-29
5023319     BARRINGTON             RI       02806       SFD     7.750     6.500     $ 1,045.96     360      1-Mar-29
5023323     PASADENA               CA       91104       SFD     7.250     6.500     $ 1,773.66     360      1-Mar-29
5023331     GLENWOOD SPRINGS       CO       81601       PUD     7.500     6.500     $ 3,496.07     360      1-Apr-29
5023332     SEAL BEACH             CA       90743       SFD     7.000     6.500     $ 1,995.91     360      1-Mar-29
5023337     ENCINO                 CA       91316       SFD     7.250     6.500     $ 4,174.92     360      1-Apr-29
5023341     EDWARDS                CO       81632       SFD     7.125     6.500     $ 2,273.80     360      1-Mar-29
5023348     BARRINGTON             RI       02806       SFD     7.625     6.500     $ 1,058.15     360      1-Apr-29
5023351     SCOTTSDALE             AZ       85259       SFD     7.500     6.500      $ 769.14      360      1-Apr-29
5023354     LAS VEGAS              NV       89128       SFD     7.500     6.500      $ 524.42      360      1-Mar-29
5023358     ENCINITAS              CA       92024       SFD     7.125     6.500     $ 2,189.59     360      1-Apr-29
5023362     BEAVERTON              OR       97008       SFD     7.250     6.500     $ 1,893.72     360      1-Apr-29
5023375     DALLAS                 TX       75225       PUD     7.000     6.500     $ 2,120.65     360      1-Mar-29
5023385     SAN FRANCISCO          CA       94110       SFD     7.625     6.500     $ 2,236.63     360      1-Mar-28
5023395     BEAVER CREEK           CO       81620       LCO     7.875     6.500     $ 4,415.67     360      1-Apr-29
5023397     EUGENE                 OR       97405       SFD     7.125     6.500      $ 606.35      360      1-Mar-29
5023407     DANVILLE               CA       94506       SFD     7.125     6.500     $ 1,077.95     360      1-Mar-29
5023409     SCOTTSDALE             AZ       85253       SFD     7.625     6.500     $ 1,323.58     360      1-Apr-29
5023419     PHOENIX                AZ       85027       SFD     7.375     6.500     $ 1,899.36     360      1-Mar-29
5023422     PORTLAND               OR       97225       LCO     7.375     6.500      $ 531.82      360      1-Apr-29
5023427     PARK CITY              UT       84060       SFD     7.500     6.500     $ 1,936.82     360      1-Jan-29
5023432     HOUSTON                TX       77024       SFD     7.000     6.500     $ 1,790.99     360      1-Apr-29
5023440     SEATTLE                WA       98115       SFD     6.625     6.358     $ 2,561.24     360      1-Feb-29
5023496     IRVINE                 CA       92612       LCO     7.250     6.500     $ 2,251.18     360      1-Apr-29
5023520     PRESCOTT               AZ       86303       SFD     7.125     6.500     $ 2,270.44     360      1-Apr-29
5023532     SCOTTSDALE             AZ       85255       PUD     7.375     6.500      $ 932.42      360      1-Apr-29
5023709     PALO ALTO              CA       94306       SFD     7.375     6.500     $ 2,969.90     360      1-Mar-29
5023719     HOUSTON                TX       77098       SFD     6.875     6.500     $ 2,920.71     360      1-Mar-29
5023729     ORANGE                 CA       92869       SFD     7.250     6.500     $ 2,796.92     360      1-Feb-29
5023736     AVON                   CO       81620       SFD     7.250     6.500     $ 1,875.98     360      1-Feb-29
5023744     SEABROOK               TX       77586       SFD     7.125     6.500     $ 2,102.00     360      1-Feb-29
5023747     HALF MOON BAY          CA       94019       SFD     7.000     6.500     $ 2,428.35     360      1-Feb-29
5023760     AVON                   CO       81620       SFD     7.500     6.500     $ 1,520.79     360      1-Mar-29
5023774     LAFUNA NIGUEL          CA       92677       SFD     7.375     6.500     $ 2,632.85     360      1-Feb-29
5023782     MONTE SERENO           CA       95030       PUD     7.000     6.500     $ 1,696.52     360      1-Mar-29
5023788     SURPRISE               AZ       85374       SFD     7.250     6.500      $ 511.63      360      1-Oct-28
5023790     SOQUEL                 CA       95073       SFD     7.500     6.500     $ 2,796.86     360      1-Mar-29
5023796     MEDFORD                OR       97504       SFD     7.125     6.500      $ 639.02      360      1-Feb-29
5023803     ARCADIA                CA       91006       SFD     7.375     6.500     $ 2,762.70     360      1-Feb-29
5023804     ARCADIA                CA       91007       SFD     7.375     6.500     $ 2,762.70     360      1-Feb-29
5023810     PORTLAND               OR       97266       SFD     7.000     6.500     $ 3,233.37     360      1-Mar-29
5023813     EL CERRITO             CA       94530       SFD     7.375     6.500     $ 2,614.90     360      1-Feb-29
5023826     EL CAJON               CA       92020       SFD     7.000     6.500     $ 1,204.20     360      1-Feb-29
5023827     AURORA                 CO       80015       SFD     6.750     6.483     $ 1,186.93     360      1-Feb-29
5023828     TEMECULA               CA       92592       SFD     7.000     6.500      $ 820.32      360      1-Mar-29
5023834     PORTLAND               OR       97206       SFD     7.500     6.500      $ 540.85      360      1-Mar-29
5023839     VAIL                   CO       81657       LCO     7.000     6.500      $ 738.49      360      1-Mar-29
5023843     PHOENIX                AZ       85253       SFD     7.125     6.500     $ 3,233.18     360      1-Mar-29
5023845     ROGUE RIVER            OR       97537       SFD     7.250     6.500     $ 1,093.53     360      1-Mar-29
5023852     PARK CITY              UT       84098       SFD     7.000     6.500      $ 838.29      360      1-Feb-29
5023853     CHARLOTTE              NC       28211       SFD     7.250     6.500     $ 2,558.16     360      1-Feb-29
5023855     SANVILLE               CA       94506       SFD     7.250     6.500     $ 2,723.93     360      1-Mar-29
5023868     PRINDA                 CA       94563       SFD     7.000     6.500     $ 4,324.47     360      1-Mar-29
5023872     SALT LAKE CITY         UT       84108       SFD     7.000     6.500     $ 1,876.16     360      1-Feb-29
5023880     JAMUL                  CA       91935       PUD     7.500     6.500     $ 2,076.67     360      1-Aug-28
5023881     PAONIA                 CO       81428       SFD     7.500     6.500      $ 445.75      360      1-Mar-29
5023885     WILTON                 CT       06897       SFD     7.125     6.500     $ 3,705.45     360      1-Mar-29
5023888     ROGUE RIVER            OR       97537       SFD     7.500     6.500      $ 656.56      360      1-Mar-29
5023894     BEND                   OR       97701       SFD     7.375     6.500     $ 3,626.04     360      1-Feb-29
5023896     MONUMENT               CO       80132       SFD     7.250     6.500     $ 2,084.39     360      1-Feb-29
5023911     AVON                   CT       06001       SFD     7.375     6.500     $ 2,975.84     360      1-Mar-29
5023913     ENCINITAS              CA       92024       SFD     6.875     6.500     $ 1,724.44     360      1-Mar-29
5023918     ORINDA                 CA       94563       SFD     7.375     6.500     $ 6,423.28     360      1-Mar-29
5023920     GRESHAM                OR       97080       SFD     7.500     6.500     $ 2,447.25     360      1-Feb-29
5023928     BOULDER                CO       80304       SFD     7.000     6.500     $ 1,763.05     360      1-Feb-29
5023929     FREMONT                CA       94536       SFD     7.500     6.500     $ 1,838.93     360      1-Oct-28
5023935     ARCADIA                CA       91006       SFD     7.000     6.500     $ 2,049.13     360      1-Feb-29
5023938     SCOTTSDALE             AZ       85255       SFD     7.125     6.500     $ 3,072.16     360      1-Feb-29
5023941     LOS GATOS              CA       95030       SFD     7.875     6.500     $ 6,199.34     360      1-Feb-29
5023942     SUMNER                 WA       99390       SFD     7.000     6.500     $ 1,763.05     360      1-Feb-29
5023946     TAHOMA                 CA       96142       SFD     7.250     6.500     $ 1,937.38     360      1-Feb-29
5023951     MORAGA                 CA       94556       SFD     7.000     6.500     $ 1,916.07     360      1-Nov-28
5023955     ENCINO                 CA       91436       SFD     7.000     6.500     $ 3,393.04     360      1-Feb-29
5023966     SHERMAN                CT       06784       SFD     7.375     6.500     $ 1,484.95     360      1-Feb-29
5023972     PHEONIX                AZ       85048       SFD     7.625     6.500     $ 1,544.41     360      1-Mar-29
5023995     BELLAIRE               TX       77401       SFD     7.375     6.500     $ 2,900.84     360      1-Apr-29
5024008     SOUTH WELLFLEET        MA       02663       SFD     7.750     6.500     $ 1,024.47     360      1-Mar-29
5024010     ESCONDIDO              CA       92025       SFD     7.625     6.500     $ 2,172.93     360      1-Apr-29
5024024     MONTGOMERY             TX       77356       SFD     7.000     6.500     $ 2,262.03     360      1-Feb-29
5024026     DEL MAR                CA       92014       SFD     7.250     6.500     $ 2,718.47     360      1-Apr-29
5024057     ANAHEIM                CA       90620       SFD     7.375     6.500     $ 1,978.78     360      1-Mar-29
5024067     TELLURIDE              CO       81435       SFD     7.000     6.500     $ 2,494.88     360      1-Mar-29
5024078     MONTGOMERY             TX       77356       SFD     7.000     6.500     $ 3,637.38     360      1-Apr-29
5024085     EDWARDS                CO       81632       SFD     7.250     6.500     $ 1,816.29     360      1-Apr-29
5024093     BORING                 OR       97009       SFD     7.125     6.500     $ 2,176.11     360      1-Mar-29
5024103     YARDLEY                PA       19067       SFD     7.125     6.500     $ 1,819.04     360      1-Feb-29
5024114     KINGWOOD               TX       77345       SFD     7.125     6.500     $ 2,021.16     360      1-Jan-29
5024180     DURANGO                CO       81301       SFD     7.250     6.500     $ 2,694.60     360      1-Feb-29
5024207     MESA                   AZ       85215       SFD     7.125     6.500     $ 1,795.47     360      1-Feb-29
5024286     PARADISE VALLEY        AZ       85253       SFD     7.000     6.500     $ 2,427.03     360      1-Mar-29
5024308     SAN DIEGO              CA       92131       SFD     7.375     6.500     $ 1,886.58     360      1-Feb-29
5024340     PARK CITY              UT       84098       SFD     7.375     6.500     $ 2,268.87     360      1-Feb-29
5024345     PARADISE               AZ       85253       SFD     7.500     6.500     $ 1,908.86     360      1-Apr-29
5024360     MEDFORD                OR       97501       SFD     7.125     6.500      $ 673.72      360      1-Apr-29
5024378     HOUSTON                TX       77005       SFD     7.250     6.500     $ 1,726.59     360      1-Feb-29
5024379     SANTA ROSA             CA       95404       SFD     7.250     6.500     $ 4,140.81     360      1-Mar-29
5024386     GILBERT                AZ       85296       SFD     6.875     6.500      $ 984.08      360      1-Feb-29
5024400     PORTLAND               OR       97229       SFD     7.500     6.500     $ 2,489.20     360      1-Feb-29
5024404     FOSTER CITY            CA       94404       SFD     7.250     6.500     $ 3,042.51     360      1-Mar-29
5024412     DRAPER                 UT       84020       SFD     7.250     6.500     $ 1,738.19     360      1-Feb-29
5024420     SAN DIEGO              CA       92129       SFD     7.125     6.500     $ 1,179.01     360      1-Mar-29
5024429     SANDY                  UT       84093       SFD     7.500     6.500     $ 1,475.35     360      1-Feb-29
5024440     PHOENIX                AZ       85020       SFD     7.250     6.500     $ 4,433.81     360      1-Mar-29
5024443     BRENTWOOD              TN       37027       SFD     7.500     6.500     $ 1,713.08     360      1-Apr-29
5024450     JUPITER                FL       33477       SFD     7.250     6.500     $ 3,121.92     360      1-Feb-29
5024451     SHERMAN OAKS           CA       91423       SFD     7.625     6.500     $ 2,505.59     360      1-Apr-29
5024467     PARK CITY              UT       84060       SFD     7.125     6.500     $ 2,374.86     360      1-Jan-29
5024486     SALMON                 ID       83467       SFD     7.625     6.500      $ 884.74      360      1-Apr-29
5024503     SUNRIVER               OR       97707       LCO     7.625     6.500      $ 517.40      360      1-Apr-29
5024508     SCOTTSDALE             AZ       85260       PUD     7.250     6.500      $ 750.40      360      1-Apr-29
5024513     KALISPELL              MT       59901       SFD     7.375     6.500      $ 668.57      360      1-Apr-29
5024521     HAILEY                 ID       83333       SFD     7.250     6.500     $ 1,262.03     360      1-Feb-29
5024522     MINTURN                CO       81645       SFD     7.250     6.500      $ 750.40      360      1-Feb-29
5024530     PORTLAND               OR       97201       SFD     7.250     6.500     $ 3,069.79     360      1-Feb-29
5024542     PROVO                  UT       84604       SFD     7.000     6.500     $ 2,075.75     360      1-Feb-29
5024543     PALO ALTO              CA       94303       SFD     7.250     6.500     $ 3,670.11     360      1-Mar-29
5024554     KEYSTONE               CO       80435       HCO     7.875     6.500     $ 1,722.76     360      1-Feb-29
5024556     SAN DIEGO              CA       92111       SFD     7.250     6.500     $ 1,398.46     360      1-Feb-29
5024562     EDGARTOWN              MA       02539       SFD     7.625     6.500     $ 1,592.54     360      1-Mar-29
5024563     GLENDALE               AZ       85308       PUD     7.375     6.500     $ 3,080.41     360      1-Feb-29
5024847     HOUSTON                TX       77098       SFD     7.000     6.500     $ 2,235.42     360      1-Mar-29
5025111     POWDER SPRINGS         GA       30127       SFD     7.000     6.500     $ 2,281.99     360      1-Nov-28
5025166     CHULUOTA               FL       32766       SFD     7.000     6.500     $ 2,478.25     360      1-Mar-29
5025185     SARASOTA               FL       34233       SFD     7.000     6.500     $ 1,875.40     352      1-Feb-28
5025334     CARY                   NC       27511       SFD     7.125     6.500     $ 1,832.52     360      1-Apr-29
5025352     CHAMBLEE               GA       30341       SFD     7.500     6.500     $ 2,058.49     360      1-Mar-29
5025508     FRANKLIN               TN       37069       SFD     7.000     6.500     $ 3,619.98     351      1-Apr-28
5025514     HENDERSON              TN       37075       SFD     7.125     6.500     $ 2,658.83     360      1-Mar-29
5026228     SAN DIEGO              CA       92109       MF2     7.375     6.500     $ 2,762.71     360      1-Jan-28
5026357     DANVILLE               KY       40422       SFD     7.000     6.500     $ 2,395.09     360      1-Apr-29
5026394     BETHANY                CT       06524       SFD     6.625     6.358     $ 1,602.06     360      1-Apr-29
5026436     RIDGEFIELD             CT       06877       SFD     7.250     6.500     $ 1,760.02     360      1-Apr-29
5026450     LAUDERDALE             FL       33304       SFD     7.250     6.500     $ 3,410.88     360      1-Jul-28
5026476     EASTON                 CT       06612       SFD     7.250     6.500     $ 2,067.00     360      1-Apr-29
5026486     WESTFORD               MA       01886       SFD     7.250     6.500     $ 2,117.48     360      1-Mar-29
5026498     GROSSE POINTE SHORES   MI       48236       SFD     7.250     6.500     $ 3,410.89     360      1-Mar-29
5026524     ORLANDO                FL       32836       SFD     6.750     6.483     $ 3,242.99     360      1-Jan-29
5026532     OCEANSIDE              CA       92056       SFD     6.750     6.483     $ 1,965.25     360      1-Apr-29
5026552     KNOXVILLE              TN       37922       SFD     6.875     6.500     $ 1,735.00     360      1-Dec-27
5026561     LAWRENCE               NY       11559       SFD     7.125     6.500     $ 2,358.02     360      1-Apr-29
5026589     FAIRFIELD              CT       06430       SFD     6.750     6.483     $ 1,809.59     360      1-Apr-29
5026600     LIBERTYVILLE           IL       60048       SFD     7.250     6.500     $ 2,046.53     360      1-Mar-29
5026604     LITTLE ROCK            AR       72207       SFD     7.250     6.500     $ 3,581.43     360      1-Apr-29
5026617     LAKE FOREST            IL       60045       SFD     7.125     6.500     $ 2,570.24     360      1-Apr-29
5026630     MONROE                 LA       71201       SFD     6.875     6.500     $ 1,708.01     360      1-Apr-29
5026642     CARLSBAD               CA       92009       SFD     7.250     6.500     $ 2,063.59     360      1-Mar-29
5026647     SCOTTSDALE             AZ       85262       SFD     7.625     6.500     $ 2,043.75     360      1-Apr-29
5026651     STAMFORD               CT       06905       SFD     7.125     6.500     $ 1,819.04     360      1-Mar-29
5026671     WILTON                 CT       06897       SFD     7.125     6.500     $ 2,019.68     240      1-Apr-19
5026690     WESTPORT               CT       06880       SFD     7.375     6.500     $ 2,103.11     360      1-Apr-29
5026707     SUNNYVALE              CA       94087       SFD     7.375     6.500     $ 2,232.27     360      1-Apr-29
5026911     FOND DU LAC            WI       54935       SFD     6.750     6.483     $ 2,417.96     240      1-Mar-19
5026972     YOUNGSVILLE            LA       70592       SFD     7.000     6.500     $ 2,794.28     360      1-Jan-29
5027023     LONGMONT               CO       80501       SFD     7.125     6.500     $ 1,846.53     360      1-Apr-29
5027030     DUBLIN                 CA       94568       SFD     6.875     6.500     $ 2,548.88     360      1-Apr-29
5027036     LOS ANGELES            CA       91326       SFD     7.250     6.500     $ 2,035.27     360      1-Apr-29
5027045     RANCHO SANTA MARGARIT  CA       92688       SFD     7.625     6.500     $ 2,123.38     360      1-Apr-29
5027058     TINLEY PARK            IL       60477       SFD     7.500     6.500     $ 1,877.39     360      1-Apr-29
5027068     MORGANTOWN             WV       26508       SFD     7.250     6.500     $ 1,889.63     360      1-Mar-29
5027097     SAN DIEGO              CA       92110       SFD     7.500     6.500     $ 1,756.78     360      1-Apr-29
5027102     MARIETTA               GA       30067       SFD     6.875     6.500     $ 2,049.62     360      1-Mar-29
5027108     OKLAHOMA CITY          OK       73131       SFD     6.875     6.500     $ 1,666.30     360      1-Mar-29
5027121     SHEBOYGAN FALLS        WI       53085       SFD     7.250     6.500     $ 1,773.66     360      1-Nov-28
5027147     ST LOUIS               MO       63105       SFD     6.875     6.500     $ 2,149.80     360      1-Mar-29
5027155     MONTGOMERY             AL       36111       SFD     7.000     6.500     $ 2,198.16     360      1-Apr-29
5027160     HERNDON                VA       20171       SFD     7.000     6.500     $ 1,993.92     360      1-Mar-29
5027170     PROSPECT HEIGHTS       IL       60070       SFD     7.125     6.500     $ 2,506.24     360      1-Apr-29
5027186     PEACHTREE CITY         GA       30269       SFD     7.000     6.500     $ 1,696.53     360      1-Mar-29
5027210     SIMONS ISLAND          GA       31522       PUD     7.000     6.500     $ 2,661.22     360      1-Mar-29
5027218     SIMI VALLEY            CA       93065       SFD     7.000     6.500     $ 2,112.34     360      1-Mar-29
5027231     WESTPORT               CT       06880       SFD     6.750     6.483     $ 1,751.22     360      1-Apr-29
5027236     RICHMOND               VA       23233       SFD     6.750     6.483     $ 1,969.14     360      1-Apr-29
5027282     MADISONVILLE           LA       70447       SFD     6.625     6.358     $ 2,081.02     360      1-Apr-29
5027320     SAN DIEGO              CA       92131       SFD     7.375     6.500     $ 2,583.13     360      1-Apr-29
5027326     WHEATON                IL       60187       SFD     7.125     6.500     $ 1,920.10     360      1-Apr-29
5027329     BELLAIRE               MI       49615       SFD     7.500     6.500     $ 2,020.73     360      1-Feb-29
5027344     AMELIA ISLAND          FL       32034       SFD     6.875     6.500     $ 2,207.28     360      1-Apr-29
5027394     PHOENIX                AZ       85016       SFD     7.250     6.500     $ 2,204.30     348      1-Mar-28
5027399     YORBA LINDA            CA       92887       SFD     6.875     6.500     $ 2,824.79     360      1-Apr-29
5027402     WHITE HALL             MD       21161       SFD     7.250     6.500     $ 1,982.40     360      1-Apr-29
5027406     OWENSBORO              KY       42303       SFD     7.125     6.500     $ 2,627.51     360      1-Mar-29
5027422     FORT WORTH             TX       76109       SFD     7.125     6.500     $ 2,236.75     360      1-Apr-29
5027423     PHOENIX                AZ       85045       SFD     7.250     6.500     $ 1,893.72     360      1-Mar-29
5027490     EAST SETAUKEY          NY       11733       SFD     7.250     6.500     $ 1,742.96     360      1-Feb-29
5027498     PHOENIX                MD       21131       SFD     7.250     6.500     $ 1,991.95     360      1-Mar-29
5027522     JERICHO                NY       11753       SFD     7.750     6.500     $ 1,869.84     360      1-Apr-29
5027548     WAYNESBORO             VA       22980       SFD     7.250     6.500     $ 3,983.50     240      1-Mar-19
5027549     VISTA                  CA       92084       SFD     7.000     6.500     $ 1,696.53     360      1-Apr-29
5027611     SCOTTS VALLEY          CA       95066       SFD     6.875     6.500     $ 2,154.40     360      1-Nov-28
5027648     LEXINGTON              KY       40502       SFD     7.500     6.500     $ 3,146.47     360      1-Feb-29
5027650     TELLURIDE              CO       81435       SFD     7.500     6.500     $ 2,237.49     360      1-Mar-29
5027657     SAN ANTONIO            TX       78261       SFD     6.875     6.500     $ 1,937.95     360      1-Mar-29
5027658     ESCONDIDO              CA       92025       SFD     7.000     6.500     $ 1,969.30     360      1-Mar-29
5027662     DAYTON                 OH       45409       SFD     7.375     6.500     $ 2,016.78     360      1-Apr-29
5027681     PINEHURST              NC       28374       SFD     7.250     6.500     $ 4,720.66     360      1-May-29
5027688     POWELL                 OH       43065       SFD     6.750     6.483     $ 3,784.57     360      1-Mar-29
5027703     PALO ALTO              CA       94306       SFD     7.250     6.500     $ 2,619.56     360      1-Apr-29
5027717     SALT LAKE CITY         UT       84108       SFD     7.000     6.500     $ 1,896.11     360      1-Mar-29
5027731     WELLESLEY              MA       02481       SFD     7.375     6.500     $ 2,175.63     360      1-Apr-29
5027736     COLORADO SPRINGS       CO       80906       SFD     7.000     6.500     $ 2,854.81     360      1-Jan-29
5027741     PHOENIX                AZ       85018       SFD     7.000     6.500     $ 2,914.03     360      1-Mar-29
5027759     PROVIDENCE             RI       02906       SFD     6.750     6.483     $ 1,777.16     360      1-Apr-29
5027800     PHOENIX                AZ       85028       SFD     7.125     6.500     $ 2,856.57     360      1-Mar-29
5027801     LEESBURG               VA       20176       SFD     7.375     6.500     $ 2,414.26     360      1-Mar-29
5027803     LITTLETON              CO       80127       SFD     7.250     6.500     $ 2,011.06     360      1-Apr-29
5027804     WESTERN SPRINGS        IL       60558       SFD     7.125     6.500     $ 2,576.98     360      1-Mar-29
5027812     MONKTON                MD       21111       SFD     7.500     6.500     $ 3,496.08     360      1-Apr-29
5027818     HARBOR SPRINGS         MI       49740       SFD     7.625     6.500     $ 2,123.38     360      1-Apr-29
5027823     ST LOUIS               MO       63127       SFD     7.125     6.500     $ 2,903.74     360      1-Apr-29
5027829     SAINT JOSEPH           MO       64505       SFD     7.125     6.500     $ 1,869.57     360      1-Apr-29
5027837     NEWTON                 MA       02166       SFD     7.250     6.500     $ 3,912.29     360      1-Mar-29
5027850     LA VERNE               CA       91750       SFD     6.875     6.500     $ 1,966.52     360      1-Apr-29
5027868     LAKEWOOD               CO       80226       SFD     6.750     6.483     $ 2,659.25     360      1-Apr-29
5027871     AUSTIN                 TX       78743       SFD     7.000     6.500     $ 2,152.26     360      1-Apr-29
5027873     MARIETTA               OH       45750       SFD     7.250     6.500     $ 1,719.09     360      1-Apr-29
5028868     BIRMINGHAM             AL       35223       SFD     7.250     6.500     $ 3,432.71     360      1-Apr-29
5032693     PROVIDENCE             RI       02906       SFD     6.750     6.483     $ 3,242.99     360      1-Apr-29
5032705     ORLANDO                FL       32836       SFD     7.375     6.500     $ 2,151.29     337      1-Mar-27
5032729     ALEXANDRIA             VA       22314       SFD     6.875     6.500     $ 2,102.18     360      1-Nov-28
5032732     KENNESAW               GA       30144       SFD     6.500     6.233     $ 3,099.66     360      1-Nov-28
5032749     LEXINGTON              KY       40515       SFD     6.875     6.500     $ 2,364.94     360      1-Mar-29
5032765     MARIETTA               GA       30068       SFD     6.750     6.483     $ 3,924.96     356      1-Jul-28
5032783     SAN MARTIN             CA       95046       SFD     7.125     6.500     $ 2,587.08     360      1-Apr-29
5032788     MURFREESBORO           TN       37127       SFD     6.750     6.483     $ 1,759.00     360      1-Mar-29
5032807     WINTER HAVEN           FL       33881       SFD     7.375     6.500     $ 1,838.84     290      1-Dec-22
5032835     ATLANTA                GA       30307       SFD     7.000     6.500     $ 1,759.01     360      1-Feb-29
5033776     ACWORTH                GA       30101       PUD     7.000     6.500     $ 1,862.85     360      1-Apr-29
5033805     ST PETERSBURG          FL       33703       SFD     7.375     6.500     $ 1,917.47     348      1-Apr-28
5033827     BRADENTON              FL       34202       SFD     7.000     6.500     $ 1,726.86     351      1-Jul-28
5033835     SAVANNAH               GA       31411       SFD     6.875     6.500     $ 2,410.93     360      1-Apr-29
5033841     BIRMINGHAM             AL       35223       SFD     7.250     6.500     $ 2,319.40     360      1-Feb-29
5033883     PACE                   FL       32571       SFD     7.125     6.500     $ 1,697.77     360      1-Mar-29
5033903     DAVIE                  FL       33328       PUD     7.500     6.500     $ 1,656.94     354      1-Jun-28
5034499     FLOWERY BRANCH         GA       30542       SFD     6.875     6.500     $ 1,760.57     360      1-Mar-29
5034514     ATHENS                 GA       30606       SFD     7.250     6.500     $ 1,981.04     360      1-Apr-29
5034534     MIAMI                  FL       33133       SFD     7.125     6.500     $ 2,122.21     360      1-Apr-29
5034645     ATLANTA                GA       30309       SFD     7.125     6.500     $ 3,732.67     317      1-Jan-25
5034666     CORAL GABLES           FL       33134       SFD     7.250     6.500     $ 1,719.08     360      1-Mar-29
5034805     LIGHTHOUSE POINT       FL       33064       SFD     7.250     6.500     $ 2,139.30     360      1-May-29
5036921     CHARLOTTE              NC       28226       SFD     7.000     6.500     $ 1,995.24     360      1-Apr-29

</TABLE>


<TABLE>
NASCOR
NMI / 1999-18 Exhibit F-3 (Part A)
30 YEAR FIXED RATE NON-RELOCATION LOANS

<CAPTION>


(i)         (ix)                 (x)        (xi)       (xii)     (xiii)     (xIv)       (xv)      (xvI)
- -----       --------------     ------    ---------  ----------  -------- ----------- ------------------
            CUT-OFF
MORTGAGE    DATE                                     MORTGAGE              T.O.P.      MASTER     FIXED
LOAN        PRINCIPAL                                INSURANCE  SERVICE   MORTGAGE    SERVICE    RETAIN
NUMBER      BALANCE              LTV      SUBSIDY      CODE       FEE       LOAN        FEE       YIELD
- --------    --------------     ------    ---------  ----------  -------- ----------- ------------------
<S>          <C>              <C>         <C>       <C>        <C>       <C>         <C>        <C>
4836563         $ 273,517.30    80.00                            0.250                 0.017      0.858
4859300         $ 349,041.50    61.30                            0.250                 0.017      0.608
4906133       $ 1,386,997.70    65.12                            0.250                 0.017      0.858
4944998       $ 1,660,826.89    69.96                            0.250                 0.017      0.483
4959907         $ 481,228.14    78.17                            0.250                 0.017      0.108
4961205         $ 248,314.21    69.44                            0.250                 0.017      0.358
4962689         $ 396,811.70    80.00                            0.250                 0.017      0.108
4962792         $ 298,372.35    68.18                            0.250                 0.017      0.608
4962859         $ 497,287.23    99.01                            0.250                 0.017      0.608
4963238         $ 476,749.97    99.98                            0.250                 0.017      0.733
4963288         $ 261,190.06   100.00                            0.250                 0.017      0.233
4963322         $ 263,562.28    88.33                            0.250                 0.017      0.608
4963337         $ 278,258.44    98.25                            0.250                 0.017      0.608
4963362         $ 317,841.15    86.49                            0.250                 0.017      0.000
4963395         $ 317,524.97   100.00                            0.250                 0.017      0.358
4967917         $ 353,531.54    73.20                            0.250                 0.017      0.483
4972463         $ 289,206.65    72.42                            0.250                 0.017      0.358
4972529         $ 289,077.01    81.07                            0.250                 0.017      0.983
4972575         $ 266,640.44    53.51                            0.250                 0.017      0.108
4975828         $ 277,547.98    90.62                   06       0.250                 0.017      0.483
4977055         $ 226,006.80    68.98                            0.250                 0.017      0.483
4981357       $ 1,992,485.15    57.14                            0.250                 0.017      0.733
4981400       $ 1,767,058.10    45.00                            0.250                 0.017      0.858
4984536         $ 245,178.02    98.45                            0.250                 0.017      0.608
4984553         $ 333,996.20   100.00                            0.250                 0.017      0.733
4984591         $ 360,739.76    80.00                            0.250                 0.017      0.108
4984596         $ 267,440.52    80.00                            0.250                 0.017      0.983
4987703         $ 219,117.29    64.24                            0.250                 0.017      0.608
4988563         $ 277,194.93    80.00                            0.250                 0.017      0.733
4992024         $ 411,479.71    75.00                            0.250                 0.017      0.233
4992193         $ 249,000.00    65.01                            0.250                 0.017      0.233
4992232         $ 293,818.96    73.73                            0.250                 0.017      0.233
4992487         $ 248,822.51    78.90                            0.250                 0.017      0.000
4997486         $ 295,385.22    80.00                            0.250                 0.017      0.483
4997682         $ 453,130.71    79.79                            0.250                 0.017      0.358
4997693         $ 359,598.45    53.72                            0.250                 0.017      0.608
4997699         $ 296,395.85    79.98                            0.250                 0.017      0.358
4997707         $ 525,587.91    55.73                            0.250                 0.017      0.000
4999192         $ 294,883.28    80.00                            0.250                 0.017      0.108
4999421         $ 296,180.02    87.18                   11       0.250                 0.017      0.733
5001135         $ 299,765.97    74.07                            0.250                 0.017      0.483
5001616         $ 297,991.53    72.29                            0.250                 0.017      0.233
5001630         $ 245,376.42    80.00                            0.250                 0.017      0.108
5001653         $ 267,337.08    63.06                            0.250                 0.017      0.233
5001829         $ 271,310.51    80.00                            0.250                 0.017      0.108
5001834         $ 312,263.03    79.24                            0.250                 0.017      0.483
5001841         $ 516,570.55    77.61                            0.250                 0.017      0.358
5001873         $ 269,364.29    72.97                            0.250                 0.017      0.483
5001879         $ 360,132.13    80.00                            0.250                 0.017      0.358
5001890         $ 261,319.45    69.68                            0.250                 0.017      0.000
5001919         $ 290,297.69    70.46                            0.250                 0.017      0.358
5001922         $ 433,975.80    55.41                            0.250                 0.017      0.483
5001926         $ 438,559.39    66.13                            0.250                 0.017      0.000
5001929         $ 261,866.47    70.00                            0.250                 0.017      0.358
5001934         $ 497,300.45    78.79                            0.250                 0.017      0.000
5001948         $ 418,935.35    80.00                            0.250                 0.017      0.108
5001949         $ 253,286.42    84.67                   06       0.250                 0.017      0.358
5001992         $ 343,128.00    68.80                            0.250                 0.017      0.108
5001998         $ 627,916.22    57.27                            0.250                 0.017      0.233
5002029         $ 247,770.33    94.99                   06       0.250                 0.017      0.108
5002047         $ 294,305.43    56.08                            0.250                 0.017      0.483
5002063         $ 336,744.22    80.00                            0.250                 0.017      0.108
5002082         $ 484,352.24    75.94                            0.250                 0.017      0.108
5002088         $ 473,853.65    74.80                            0.250                 0.017      0.358
5002102         $ 305,359.33    61.83                            0.250                 0.017      0.483
5002106         $ 365,079.20    58.21                            0.250                 0.017      0.483
5002107         $ 600,797.79    73.21                            0.250                 0.017      0.233
5002112         $ 269,315.60    73.57                            0.250                 0.017      0.108
5002124         $ 253,715.92    94.40                   12       0.250                 0.017      0.608
5002129         $ 389,011.43    72.22                            0.250                 0.017      0.108
5002133         $ 591,995.55    61.82                            0.250                 0.017      0.108
5002140         $ 299,257.96    84.03                   06       0.250                 0.017      0.233
5002141         $ 303,179.53    80.00                            0.250                 0.017      0.108
5002151         $ 324,196.11    73.86                            0.250                 0.017      0.233
5002919         $ 288,285.18    74.29                            0.250                 0.017      0.233
5002921         $ 498,732.59    42.74                            0.250                 0.017      0.108
5002932         $ 378,827.64    51.91                            0.250                 0.017      0.108
5002943         $ 422,004.06    68.78                            0.250                 0.017      0.483
5002966         $ 355,875.88    74.84                            0.250                 0.017      0.483
5002974         $ 405,239.27    67.83                            0.250                 0.017      0.358
5003053         $ 283,060.65    94.98                   12       0.250                 0.017      0.233
5003072         $ 347,937.25    80.00                            0.250                 0.017      0.233
5003085         $ 231,523.78    79.98                            0.250                 0.017      0.358
5003088         $ 245,912.38    83.73                   06       0.250                 0.017      0.483
5003093         $ 324,155.80    42.29                            0.250                 0.017      0.000
5003105         $ 263,336.89    80.00                            0.250                 0.017      0.233
5003122         $ 256,427.88    88.72                            0.250                 0.017      0.108
5003567         $ 252,832.28    75.64                            0.250                 0.017      0.733
5003582         $ 363,099.63    80.00                            0.250                 0.017      0.233
5003612         $ 271,310.51    79.77                            0.250                 0.017      0.108
5003623         $ 278,343.09    90.00                   01       0.250                 0.017      0.483
5003706         $ 304,064.40    80.00                            0.250                 0.017      0.358
5003738         $ 319,867.95    76.73                            0.250                 0.017      0.358
5003743         $ 277,659.03    80.00                            0.250                 0.017      0.000
5003764         $ 391,006.32    80.00                            0.250                 0.017      0.108
5003778         $ 362,948.64    67.59                            0.250                 0.017      0.483
5003783         $ 305,279.54    53.22                            0.250                 0.017      0.483
5003784         $ 272,706.95    89.71                   06       0.250                 0.017      0.108
5003787         $ 266,954.17    66.90                            0.250                 0.017      0.358
5003796         $ 303,027.71    80.00                            0.250                 0.017      0.108
5003798         $ 469,236.47    66.25                            0.250                 0.017      0.233
5003800         $ 349,196.09    63.64                            0.250                 0.017      0.608
5003813         $ 376,853.82    89.99                   06       0.250                 0.017      0.733
5003819         $ 600,386.34    72.34                            0.250                 0.017      0.108
5003828         $ 308,359.51    82.37                            0.250                 0.017      0.108
5003833         $ 398,784.34    72.99                            0.250                 0.017      0.108
5003854         $ 334,861.14    80.00                            0.250                 0.017      0.108
5003860         $ 275,754.11    77.89                            0.250                 0.017      0.483
5003886         $ 295,267.85    79.96                            0.250                 0.017      0.233
5003901         $ 295,036.42    80.00                            0.250                 0.017      0.108
5003910         $ 349,155.35    49.30                            0.250                 0.017      0.358
5003983         $ 257,762.12    79.99                            0.250                 0.017      0.000
5004366         $ 398,497.03    75.47                            0.250                 0.017      0.733
5004371         $ 105,613.55   100.00                            0.250                 0.017      0.000
5004385         $ 338,955.58    76.40                            0.250                 0.017      0.608
5004548         $ 139,519.51   100.00                            0.250                 0.017      0.233
5004693         $ 265,443.41   100.00                            0.250                 0.017      0.733
5004762         $ 114,646.72    96.23                            0.250                 0.017      0.608
5005075         $ 254,114.44    80.00                            0.250                 0.017      0.483
5005165         $ 328,201.02    80.00                            0.250                 0.017      0.000
5005227         $ 334,150.84    74.44                            0.250                 0.017      0.108
5005280         $ 228,512.28    90.00                   06       0.250                 0.017      0.983
5005456         $ 210,690.32    80.00                            0.250                 0.017      0.358
5005536         $ 267,652.50    70.61                            0.250                 0.017      0.358
5005583         $ 300,173.83    77.15                            0.250                 0.017      0.358
5005868         $ 355,689.56    90.00                   06       0.250                 0.017      1.858
5005986         $ 291,853.74    55.69                            0.250                 0.017      0.358
5006160         $ 254,670.92    79.81                            0.250                 0.017      1.983
5006731         $ 399,663.95    62.99                            0.250                 0.017      0.108
5007740         $ 439,712.60    80.00                            0.250                 0.017      0.483
5007765         $ 310,532.75    28.40                            0.250                 0.017      0.000
5007770         $ 248,366.97    62.50                            0.250                 0.017      0.358
5008434         $ 337,520.17    62.26                            0.250                 0.017      0.733
5008451         $ 546,570.19    66.47                            0.250                 0.017      0.233
5008558         $ 327,168.57    59.64                            0.250                 0.017      0.108
5009225         $ 434,917.37    76.15                            0.250                 0.017      0.000
5009372         $ 118,906.51    58.54                            0.250                 0.017      0.733
5009587         $ 141,957.22    71.25                            0.250                 0.017      0.733
5009619          $ 95,372.25    75.00                            0.250                 0.017      1.358
5009662         $ 441,483.68    75.00                            0.250                 0.017      0.608
5010186         $ 320,298.57    89.78                   06       0.250                 0.017      0.858
5011145         $ 308,036.21    80.00                            0.250                 0.017      0.233
5011191         $ 247,571.76    80.00                            0.250                 0.017      0.000
5011237         $ 433,924.04    51.18                            0.250                 0.017      0.233
5011238         $ 279,528.19    68.80                            0.250                 0.017      0.108
5011257         $ 460,148.18    80.00                            0.250                 0.017      0.358
5011283         $ 234,112.88    62.05                            0.250                 0.017      0.983
5011290         $ 372,701.45    31.25                            0.250                 0.017      0.000
5011298         $ 646,015.78    65.00                            0.250                 0.017      0.000
5023152         $ 423,523.96    38.64                            0.250                 0.017      0.000
5023181         $ 349,175.92    70.00                            0.250                 0.017      0.483
5023197         $ 317,489.91    62.97                            0.250                 0.017      0.358
5023245         $ 158,625.65    70.04                            0.250                 0.017      0.483
5023255         $ 358,154.76    55.66                            0.250                 0.017      0.483
5023266          $ 83,408.04    48.32                            0.250                 0.017      0.108
5023277         $ 299,257.96    37.50                            0.250                 0.017      0.233
5023282         $ 108,529.89    74.97                            0.250                 0.017      0.483
5023283         $ 199,540.64    47.62                            0.250                 0.017      0.608
5023298         $ 708,486.93    67.62                            0.250                 0.017      0.983
5023308         $ 261,367.72    65.50                            0.250                 0.017      0.358
5023319         $ 145,688.87    74.87                            0.250                 0.017      0.983
5023323         $ 259,387.84    66.67                            0.250                 0.017      0.483
5023331         $ 499,255.54    54.95                            0.250                 0.017      0.733
5023332         $ 299,257.96    74.07                            0.250                 0.017      0.233
5023337         $ 611,042.28    80.00                            0.250                 0.017      0.483
5023341         $ 336,685.50    59.00                            0.250                 0.017      0.358
5023348         $ 149,282.91    58.63                            0.250                 0.017      0.858
5023351         $ 109,836.21    59.46                            0.250                 0.017      0.733
5023354          $ 74,831.97    53.96                            0.250                 0.017      0.733
5023358         $ 324,478.65    68.42                            0.250                 0.017      0.358
5023362         $ 277,165.59    80.00                            0.250                 0.017      0.483
5023375         $ 317,961.59    75.00                            0.250                 0.017      0.233
5023385         $ 312,412.43    80.00                            0.250                 0.017      0.858
5023395         $ 608,159.03    62.46                            0.250                 0.017      1.108
5023397          $ 89,762.56    54.05                            0.250                 0.017      0.358
5023407         $ 159,613.87    47.76                            0.250                 0.017      0.358
5023409         $ 186,728.44    56.67                            0.250                 0.017      0.858
5023419         $ 274,368.36    32.35                            0.250                 0.017      0.608
5023422          $ 76,882.46    74.76                            0.250                 0.017      0.608
5023427         $ 275,959.22    71.03                            0.250                 0.017      0.733
5023432         $ 268,757.40    79.99                            0.250                 0.017      0.233
5023440         $ 398,576.64    42.11                            0.250                 0.017      0.000
5023496         $ 329,483.58    69.92                            0.250                 0.017      0.483
5023520         $ 336,459.42    72.47                            0.250                 0.017      0.358
5023532         $ 134,753.52    22.50                            0.250                 0.017      0.608
5023709         $ 429,012.38    71.67                            0.250                 0.017      0.608
5023719         $ 443,460.41    76.66                            0.250                 0.017      0.108
5023729         $ 408,709.01    54.67                            0.250                 0.017      0.483
5023736         $ 274,134.11    58.51                            0.250                 0.017      0.483
5023744         $ 310,993.08    80.00                            0.250                 0.017      0.358
5023747         $ 363,792.76    66.36                            0.250                 0.017      0.233
5023760         $ 217,012.73    50.00                            0.250                 0.017      0.733
5023774         $ 380,029.03    70.33                            0.250                 0.017      0.608
5023782         $ 254,369.27    25.50                            0.250                 0.017      0.233
5023788          $ 74,521.96    42.90                            0.250                 0.017      0.483
5023790         $ 399,103.84    49.08                            0.250                 0.017      0.733
5023796          $ 94,543.89    74.98                            0.250                 0.017      0.358
5023803         $ 398,771.26    72.73                            0.250                 0.017      0.608
5023804         $ 398,771.26    69.32                            0.250                 0.017      0.608
5023810         $ 484,797.91    64.80                            0.250                 0.017      0.233
5023813         $ 377,436.98    51.16                            0.250                 0.017      0.608
5023826         $ 180,097.80    74.79                            0.250                 0.017      0.233
5023827         $ 182,364.45    73.20                            0.250                 0.017      0.000
5023828         $ 122,995.02    72.53                            0.250                 0.017      0.233
5023834          $ 77,176.72    59.96                            0.250                 0.017      0.733
5023839         $ 110,221.41    87.68                   13       0.250                 0.017      0.233
5023843         $ 478,741.84    76.19                            0.250                 0.017      0.358
5023845         $ 159,922.57    67.92                            0.250                 0.017      0.483
5023852         $ 125,583.25    56.00                            0.250                 0.017      0.233
5023853         $ 373,650.33    63.03                            0.250                 0.017      0.483
5023855         $ 398,359.87    74.92                            0.250                 0.017      0.483
5023868         $ 648,392.25    54.17                            0.250                 0.017      0.233
5023872         $ 279,853.21    54.76                            0.250                 0.017      0.233
5023880         $ 294,732.76    75.19                            0.250                 0.017      0.733
5023881          $ 63,607.17    74.13                            0.250                 0.017      0.733
5023885         $ 548,424.94    55.00                            0.250                 0.017      0.358
5023888          $ 93,689.64    63.02                            0.250                 0.017      0.733
5023894         $ 523,387.30    75.00                            0.250                 0.017      0.608
5023896         $ 304,587.88    79.36                            0.250                 0.017      0.483
5023911         $ 429,344.15    75.59                            0.250                 0.017      0.608
5023913         $ 261,834.60    75.00                            0.250                 0.017      0.108
5023918         $ 927,219.67    62.00                            0.250                 0.017      0.608
5023920         $ 348,951.22    58.72                            0.250                 0.017      0.733
5023928         $ 264,123.50    49.07                            0.250                 0.017      0.233
5023929         $ 261,403.97    73.46                            0.250                 0.017      0.733
5023935         $ 306,981.27    80.00                            0.250                 0.017      0.233
5023938         $ 454,528.32    80.00                            0.250                 0.017      0.358
5023941         $ 852,623.13    45.00                            0.250                 0.017      1.108
5023942         $ 264,123.50    88.33                   11       0.250                 0.017      0.233
5023946         $ 283,105.74    80.00                            0.250                 0.017      0.483
5023951         $ 285,901.55    69.40                            0.250                 0.017      0.233
5023955         $ 507,437.69    79.07                            0.250                 0.017      0.233
5023966         $ 214,339.56    51.56                            0.250                 0.017      0.608
5023972         $ 217,723.20    72.61                            0.250                 0.017      0.858
5023995         $ 419,358.86    80.00                            0.250                 0.017      0.608
5024008         $ 142,695.25    57.20                            0.250                 0.017      0.983
5024010         $ 306,554.19    76.75                            0.250                 0.017      0.858
5024024         $ 338,875.42    79.07                            0.250                 0.017      0.233
5024026         $ 397,876.39    48.30                            0.250                 0.017      0.483
5024057         $ 281,762.19    75.00                            0.250                 0.017      0.608
5024067         $ 374,072.47    53.57                            0.250                 0.017      0.233
5024078         $ 545,826.08    77.22                            0.250                 0.017      0.233
5024085         $ 265,833.35    79.72                            0.250                 0.017      0.483
5024093         $ 322,220.50    70.22                            0.250                 0.017      0.358
5024103         $ 269,128.62    66.50                            0.250                 0.017      0.358
5024114         $ 298,786.12    57.69                            0.250                 0.017      0.358
5024180         $ 393,756.22    52.32                            0.250                 0.017      0.483
5024207         $ 265,510.04    74.03                            0.250                 0.017      0.358
5024286         $ 363,897.70    80.00                            0.250                 0.017      0.233
5024308         $ 272,310.92    76.09                            0.250                 0.017      0.608
5024340         $ 327,490.89    90.00                   13       0.250                 0.017      0.608
5024345         $ 272,593.51    70.00                            0.250                 0.017      0.733
5024360          $ 99,839.59    40.82                            0.250                 0.017      0.358
5024378         $ 252,303.04    74.99                            0.250                 0.017      0.483
5024379         $ 605,570.84    55.18                            0.250                 0.017      0.483
5024386         $ 148,984.27    71.39                            0.250                 0.017      0.108
5024400         $ 354,731.37    70.50                            0.250                 0.017      0.733
5024404         $ 444,949.90    74.33                            0.250                 0.017      0.483
5024412         $ 253,997.68    89.40                   11       0.250                 0.017      0.483
5024420         $ 174,577.66    69.17                            0.250                 0.017      0.358
5024429         $ 210,367.75    74.04                            0.250                 0.017      0.733
5024440         $ 648,419.73    59.09                            0.250                 0.017      0.483
5024443         $ 244,635.20    74.47                            0.250                 0.017      0.733
5024450         $ 456,196.21    73.22                            0.250                 0.017      0.483
5024451         $ 353,485.95    60.00                            0.250                 0.017      0.858
5024467         $ 351,073.71    75.00                            0.250                 0.017      0.358
5024486         $ 124,818.49    43.10                            0.250                 0.017      0.858
5024503          $ 72,993.84    74.97                            0.250                 0.017      0.858
5024508         $ 109,827.86    64.71                            0.250                 0.017      0.483
5024513          $ 96,652.24    80.00                            0.250                 0.017      0.608
5024521         $ 184,417.47    62.71                            0.250                 0.017      0.483
5024522         $ 109,653.64    27.85                            0.250                 0.017      0.483
5024530         $ 448,583.07    75.00                            0.250                 0.017      0.483
5024542         $ 310,968.05    64.46                            0.250                 0.017      0.233
5024543         $ 536,733.30    50.05                            0.250                 0.017      0.483
5024554         $ 236,854.83    90.00                   13       0.250                 0.017      1.108
5024556         $ 201,703.54    70.69                            0.250                 0.017      0.483
5024562         $ 199,634.21    53.57                            0.250                 0.017      0.858
5024563         $ 444,629.97    61.94                            0.250                 0.017      0.608
5024847         $ 335,168.91    80.00                            0.250                 0.017      0.233
5025111         $ 340,997.12    85.75                            0.250                 0.017      0.233
5025166         $ 371,275.37    72.33                            0.250                 0.017      0.233
5025185         $ 278,023.46    80.00                            0.250                 0.017      0.233
5025334         $ 271,563.67    80.00                            0.250                 0.017      0.358
5025352         $ 293,740.42    95.00                   01       0.250                 0.017      0.733
5025508         $ 537,622.53    75.00                            0.250                 0.017      0.233
5025514         $ 393,697.58    79.89                            0.250                 0.017      0.358
5026228         $ 394,563.18    70.80                            0.250                 0.017      0.608
5026357         $ 359,408.10    80.00                            0.250                 0.017      0.233
5026394         $ 249,757.28    72.73                            0.250                 0.017      0.000
5026436         $ 257,565.50    77.01                            0.250                 0.017      0.483
5026450         $ 480,704.41    77.52                            0.250                 0.017      0.483
5026476         $ 302,525.83    79.74                            0.250                 0.017      0.483
5026486         $ 309,669.16    80.00                            0.250                 0.017      0.483
5026498         $ 498,822.75    62.19                            0.250                 0.017      0.483
5026524         $ 497,823.19    75.76                            0.250                 0.017      0.000
5026532         $ 302,476.79    77.69                            0.250                 0.017      0.000
5026552         $ 259,913.57    63.64                            0.250                 0.017      0.108
5026561         $ 349,438.55    51.85                            0.250                 0.017      0.358
5026589         $ 278,518.22    88.57                   12       0.250                 0.017      0.000
5026600         $ 299,092.45    70.59                            0.250                 0.017      0.483
5026604         $ 524,178.42    70.00                            0.250                 0.017      0.483
5026617         $ 380,888.02    61.53                            0.250                 0.017      0.358
5026630         $ 259,561.89    52.53                            0.250                 0.017      0.108
5026642         $ 301,787.75    78.57                            0.250                 0.017      0.483
5026647         $ 288,289.43    75.00                            0.250                 0.017      0.858
5026651         $ 269,348.40    90.00                   12       0.250                 0.017      0.358
5026671         $ 257,021.50    60.71                            0.250                 0.017      0.358
5026690         $ 304,035.17    50.75                            0.250                 0.017      0.608
5026707         $ 322,706.61    71.19                            0.250                 0.017      0.608
5026911         $ 315,936.27    74.82                            0.250                 0.017      0.000
5026972         $ 418,258.40    75.00                            0.250                 0.017      0.233
5027023         $ 273,640.34    80.00                            0.250                 0.017      0.358
5027030         $ 387,346.21    80.00                            0.250                 0.017      0.108
5027036         $ 297,883.12    80.00                            0.250                 0.017      0.483
5027045         $ 299,564.36    66.67                            0.250                 0.017      0.858
5027058         $ 268,100.23    75.00                            0.250                 0.017      0.733
5027068         $ 276,347.81    66.11                            0.250                 0.017      0.483
5027097         $ 250,875.90    75.00                            0.250                 0.017      0.733
5027102         $ 311,209.13    77.04                            0.250                 0.017      0.108
5027108         $ 253,007.03    95.00                   13       0.250                 0.017      0.108
5027121         $ 258,554.22    77.84                            0.250                 0.017      0.483
5027147         $ 326,420.47    76.82                            0.250                 0.017      0.108
5027155         $ 329,856.74    80.00                            0.250                 0.017      0.233
5027160         $ 298,958.69    90.00                   11       0.250                 0.017      0.233
5027170         $ 371,403.25    78.65                            0.250                 0.017      0.358
5027186         $ 254,218.36    70.25                            0.250                 0.017      0.233
5027210         $ 399,010.59    62.02                            0.250                 0.017      0.233
5027218         $ 316,714.67    79.99                            0.250                 0.017      0.233
5027231         $ 269,533.75    71.05                            0.250                 0.017      0.000
5027236         $ 303,075.75    78.86                            0.250                 0.017      0.000
5027282         $ 324,424.92    50.90                            0.250                 0.017      0.000
5027320         $ 373,429.07    80.00                            0.250                 0.017      0.608
5027326         $ 284,542.82    73.08                            0.250                 0.017      0.358
5027329         $ 288,134.00    85.00                   11       0.250                 0.017      0.733
5027344         $ 335,433.82    44.80                            0.250                 0.017      0.108
5027394         $ 319,182.18    80.00                            0.250                 0.017      0.483
5027399         $ 429,275.43    73.88                            0.250                 0.017      0.108
5027402         $ 290,145.25    76.47                            0.250                 0.017      0.483
5027406         $ 389,058.78    79.92                            0.250                 0.017      0.358
5027422         $ 331,467.42    80.00                            0.250                 0.017      0.358
5027423         $ 276,946.41    79.88                            0.250                 0.017      0.483
5027490         $ 254,695.49    70.97                            0.250                 0.017      0.483
5027498         $ 291,312.52    80.00                            0.250                 0.017      0.483
5027522         $ 260,630.38    90.00                   06       0.250                 0.017      0.983
5027548         $ 501,096.86    61.31                            0.250                 0.017      0.483
5027549         $ 254,580.72    76.12                            0.250                 0.017      0.233
5027611         $ 325,987.89    80.00                            0.250                 0.017      0.108
5027648         $ 448,651.54    75.00                            0.250                 0.017      0.733
5027650         $ 319,283.07    76.19                            0.250                 0.017      0.733
5027657         $ 294,252.19    73.75                            0.250                 0.017      0.108
5027658         $ 295,267.85    74.00                            0.250                 0.017      0.233
5027662         $ 291,554.24    57.25                            0.250                 0.017      0.608
5027681         $ 691,460.17    80.00                            0.250                 0.017      0.483
5027688         $ 581,984.36    66.04                            0.250                 0.017      0.000
5027703         $ 383,399.07    67.37                            0.250                 0.017      0.483
5027717         $ 284,295.08    95.00                            0.250                 0.017      0.233
5027731         $ 314,519.14    74.47                            0.250                 0.017      0.608
5027736         $ 427,320.72    84.14                   11       0.250                 0.017      0.233
5027741         $ 436,916.62    74.87                            0.250                 0.017      0.233
5027759         $ 198,526.85    80.00                            0.250                 0.017      0.000
5027800         $ 422,976.74    80.00                            0.250                 0.017      0.358
5027801         $ 348,406.82    84.64                   12       0.250                 0.017      0.608
5027803         $ 294,338.65    72.43                            0.250                 0.017      0.483
5027804         $ 381,576.88    85.96                   12       0.250                 0.017      0.358
5027812         $ 499,255.52    64.27                            0.250                 0.017      0.733
5027818         $ 299,351.35    40.00                            0.250                 0.017      0.858
5027823         $ 430,308.60    74.96                            0.250                 0.017      0.358
5027829         $ 277,054.86    75.00                            0.250                 0.017      0.358
5027837         $ 572,149.69    74.87                            0.250                 0.017      0.483
5027850         $ 298,811.91    75.00                            0.250                 0.017      0.108
5027868         $ 409,292.01    43.62                            0.250                 0.017      0.000
5027871         $ 322,968.10    77.95                            0.250                 0.017      0.233
5027873         $ 251,605.63    80.00                            0.250                 0.017      0.483
5028868         $ 502,412.55    80.00                            0.250                 0.017      0.483
5032693         $ 499,136.60    80.00                            0.250                 0.017      0.000
5032705         $ 304,539.35    71.92                            0.250                 0.017      0.608
5032729         $ 318,085.42    74.07                            0.250                 0.017      0.108
5032732         $ 487,245.83    80.00                            0.250                 0.017      0.000
5032749         $ 359,087.47    73.47                            0.250                 0.017      0.108
5032765         $ 599,250.11    55.84                            0.250                 0.017      0.000
5032783         $ 383,384.02    80.00                            0.250                 0.017      0.358
5032788         $ 270,495.56    79.07                            0.250                 0.017      0.000
5032807         $ 241,541.14    57.81                            0.250                 0.017      0.608
5032835         $ 263,518.32    70.69                            0.250                 0.017      0.233
5033776         $ 279,539.62    80.00                            0.250                 0.017      0.233
5033805         $ 274,543.87    76.39                            0.250                 0.017      0.608
5033827         $ 257,150.31    79.73                            0.250                 0.017      0.233
5033835         $ 366,381.58    69.25                            0.250                 0.017      0.108
5033841         $ 338,929.41    80.00                            0.250                 0.017      0.483
5033883         $ 251,391.84    80.00                            0.250                 0.017      0.358
5033903         $ 234,787.36    88.68                   06       0.250                 0.017      0.733
5034499         $ 267,298.02    72.83                            0.250                 0.017      0.108
5034514         $ 289,945.55    80.00                            0.250                 0.017      0.483
5034534         $ 314,494.71    91.30                   06       0.250                 0.017      0.358
5034645         $ 526,335.88    76.06                            0.250                 0.017      0.358
5034666         $ 251,406.69    80.00                            0.250                 0.017      0.483
5034805         $ 313,355.37    84.99                   06       0.250                 0.017      0.483
5036921         $ 299,406.92    57.67                            0.250                 0.017      0.233
             $135,180,655.86


COUNT:                        399
WAC:                  7.169508707
WAM:                  351.2761348
WALTV:                 69.8733542


</TABLE>

NASCOR
NMI / 1999-18 Exhibit F-3 (Part B)
30 YEAR FIXED RATE NON-RELOCATION LOANS


(i)            (xvii)                          (xviii)
- -----          -----------                     -----------

MORTGAGE                                       NMI
LOAN                                           LOAN
NUMBER         SERVICER                        SELLER
- --------       ----------------------------------------------------------------
4836563        CHASE MANHATTAN BANK            CHASE MANHATTAN BANK
4859300        NATIONAL CITY MORTGAGE CO.      NATIONAL CITY MORTGAGE CO.
4906133        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
4944998        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
4959907        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4961205        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
4962689        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
4962792        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
4962859        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
4963238        MERRILL LYNCH CREDIT CORP       MERRILL LYNCH CREDIT CORP
4963288        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
4963322        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
4963337        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
4963362        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
4963395        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
4967917        COUNTRYWIDE FUNDING CORP.       COUNTRYWIDE FUNDING CORP.
4972463        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4972529        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4972575        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4975828        FIRST UNION MORTGAGE CORP       FIRST UNION MORTGAGE CORP
4977055        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4981357        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
4981400        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
4984536        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
4984553        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
4984591        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
4984596        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
4987703        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4988563        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4992024        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4992193        PLYMOUTH SAVINGS BANK           PLYMOUTH SAVINGS BANK
4992232        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4992487        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4997486        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4997682        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4997693        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4997699        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4997707        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
4999192        FIRST UNION MORTGAGE CORP       FIRST UNION MORTGAGE CORP
4999421        HUNTINGTON MORTGAGE COMPANY     HUNTINGTON MORTGAGE COMPANY
5001135        HIBERNIA NATIONAL BANK          HIBERNIA NATIONAL BANK
5001616        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001630        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001653        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001829        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001834        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001841        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001873        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001879        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001890        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001919        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001922        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001926        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001929        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001934        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001948        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001949        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001992        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5001998        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002029        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002047        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002063        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002082        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002088        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002102        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002106        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002107        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002112        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002124        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002129        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002133        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002140        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002141        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002151        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002919        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002921        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002932        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002943        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002966        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5002974        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003053        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003072        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003085        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003088        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003093        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003105        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003122        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003567        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003582        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003612        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003623        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003706        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003738        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003743        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003764        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003778        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003783        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003784        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003787        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003796        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003798        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003800        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003813        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003819        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003828        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003833        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003854        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003860        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003886        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003901        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003910        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5003983        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5004366        MERRILL LYNCH CREDIT CORP.      MERRILL LYNCH CREDIT CORP.
5004371        MERRILL LYNCH CREDIT CORP.      MERRILL LYNCH CREDIT CORP.
5004385        MERRILL LYNCH CREDIT CORP.      MERRILL LYNCH CREDIT CORP.
5004548        MERRILL LYNCH CREDIT CORP.      MERRILL LYNCH CREDIT CORP.
5004693        MERRILL LYNCH CREDIT CORP.      MERRILL LYNCH CREDIT CORP.
5004762        MERRILL LYNCH CREDIT CORP.      MERRILL LYNCH CREDIT CORP.
5005075        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5005165        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5005227        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5005280        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5005456        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5005536        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5005583        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5005868        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5005986        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5006160        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5006731        HIBERNIA NATIONAL BANK          HIBERNIA NATIONAL BANK
5007740        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5007765        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5007770        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5008434        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5008451        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5008558        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5009225        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5009372        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
5009587        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
5009619        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
5009662        NOVUS FINANCIAL CORPORATION     NOVUS FINANCIAL CORPORATION
5010186        FT MORTGAGE COMPANIES           FT MORTGAGE COMPANIES
5011145        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5011191        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5011237        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5011238        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5011257        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5011283        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5011290        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5011298        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5023152        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023181        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023197        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023245        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023255        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023266        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023277        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023282        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023283        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023298        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023308        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023319        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023323        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023331        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023332        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023337        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023341        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023348        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023351        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023354        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023358        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023362        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023375        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023385        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023395        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023397        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023407        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023409        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023419        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023422        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023427        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023432        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023440        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023496        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023520        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023532        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023709        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023719        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023729        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023736        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023744        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023747        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023760        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023774        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023782        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023788        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023790        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023796        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023803        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023804        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023810        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023813        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023826        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023827        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023828        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023834        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023839        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023843        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023845        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023852        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023853        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023855        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023868        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023872        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023880        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023881        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023885        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023888        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023894        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023896        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023911        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023913        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023918        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023920        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023928        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023929        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023935        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023938        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023941        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023942        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023946        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023951        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023955        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023966        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023972        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5023995        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024008        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024010        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024024        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024026        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024057        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024067        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024078        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024085        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024093        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024103        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024114        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024180        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024207        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024286        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024308        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024340        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024345        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024360        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024378        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024379        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024386        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024400        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024404        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024412        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024420        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024429        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024440        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024443        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024450        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024451        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024467        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024486        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024503        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024508        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024513        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024521        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024522        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024530        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024542        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024543        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024554        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024556        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024562        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024563        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5024847        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5025111        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5025166        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5025185        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5025334        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5025352        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5025508        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5025514        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5026228        BANK UNITED OF TEXAS            BANK UNITED OF TEXAS
5026357        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026394        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026436        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026450        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5026476        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026486        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026498        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026524        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5026532        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026552        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5026561        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026589        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026600        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026604        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026617        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026630        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026642        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026647        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026651        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026671        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026690        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026707        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026911        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5026972        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027023        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027030        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027036        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027045        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027058        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027068        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027097        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027102        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027108        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027121        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027147        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027155        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027160        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027170        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027186        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027210        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027218        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027231        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027236        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027282        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027320        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027326        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027329        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027344        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027394        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027399        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027402        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027406        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027422        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027423        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027490        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027498        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027522        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027548        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027549        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027611        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027648        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027650        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027657        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027658        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027662        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027681        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5027688        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027703        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027717        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027731        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027736        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027741        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027759        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027800        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027801        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027803        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027804        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027812        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027818        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027823        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027829        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027837        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027850        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027868        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027871        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5027873        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5028868        HIBERNIA NATIONAL BANK          HIBERNIA NATIONAL BANK
5032693        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5032705        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5032729        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5032732        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5032749        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5032765        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5032783        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5032788        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5032807        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5032835        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5033776        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5033805        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5033827        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5033835        BANCBOSTON MORTGAGE CORP.       BANCBOSTON MORTGAGE CORP.
5033841        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5033883        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5033903        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5034499        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5034514        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5034534        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5034645        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5034666        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5034805        SUNTRUST MORTGAGE, INC.         SUNTRUST MORTGAGE, INC.
5036921        FIRST UNION MORTGAGE CORP       FIRST UNION MORTGAGE CORP






<PAGE>

                                    EXHIBIT G

                               REQUEST FOR RELEASE
                       (for Trust Administrator/Custodian)



Loan Information

      Name of Mortgagor:                  _____________________________

      Servicer
      Loan No.:                           _____________________________



Custodian/Trust Administrator

      Name:                               _____________________________

      Address:                            _____________________________

      Custodian/Trustee                   _____________________________

      Mortgage File No.:                  _____________________________



Seller

      Name:                               _____________________________

      Address:                            _____________________________

      Certificates:
                                          Mortgage Pass-Through Certificates,
                                          Series 1999-18

            The  undersigned  Master Servicer  hereby  acknowledges  that it has
received from First Union National Bank, as Trust  Administrator for the Holders
of Mortgage Pass-Through Certificates, Series 1999-18, the documents referred to
below (the  "Documents").  All capitalized  terms not otherwise  defined in this
Request  for  Release  shall have the  meanings  given them in the  Pooling  and
Servicing  Agreement  dated as of June 29,  1999  (the  "Pooling  and  Servicing
Agreement") among the Trust  Administrator,  the Seller, the Master Servicer and
the United States Trust Company of New York, as Trustee.

( )   Promissory Note dated ______________, 199__, in the original principal sum
      of $___________, made by ____________________,  payable to, or endorsed to
      the order of, the Trustee.


( )   Mortgage   recorded   on    _____________________    as   instrument   no.
      ______________   in  the  County   Recorder's  Office  of  the  County  of
      ____________________, State of _______________________ in book/reel/docket
      ____________________ of official records at page/image ------------.


( )   Deed  of  Trust  recorded  on   ____________________   as  instrument  no.
      _________________  in  the  County  Recorder's  Office  of the  County  of
      ___________________,   State  of   _________________  in  book/reel/docket
      ____________________ of official records at page/image ____________.


( )   Assignment  of  Mortgage  or Deed of Trust  to the  Trustee,  recorded  on
      ______________________________  as instrument  no.  ______________  in the
      County Recorder's Office of the County of ______________________, State of
      _____________________ in book/reel/docket ____________________ of official
      records at page/image ____________.


( )   Other   documents,   including  any   amendments,   assignments  or  other
      assumptions of the Mortgage Note or Mortgage.

      ( ) ---------------------------------------------

      ( ) ---------------------------------------------

      ( ) ---------------------------------------------

      ( ) ---------------------------------------------

      The undersigned Master Servicer hereby acknowledges and agrees as follows:

            (1) The Master  Servicer  shall hold and  retain  possession  of the
      Documents in trust for the benefit of the Trustee, solely for the purposes
      provided in the Agreement.

            (2) The Master  Servicer  shall not cause or permit the Documents to
      become subject to, or encumbered by, any claim, liens,  security interest,
      charges,  writs of  attachment or other  impositions  nor shall the Master
      Servicer  assert  or seek to assert  any  claims or rights of setoff to or
      against the Documents or any proceeds thereof.

            (3) The Master  Servicer  shall  return the  Documents  to the Trust
      Administrator when the need therefor no longer exists, unless the Mortgage
      Loan  relating  to the  Documents  has been  liquidated  and the  proceeds
      thereof  have been  remitted  to the  Certificate  Account  and  except as
      expressly provided in the Agreement.

            (4) The Documents and any proceeds  thereof,  including any proceeds
      of proceeds,  coming into the possession or control of the Master Servicer
      shall  at  all  times  be   earmarked   for  the   account  of  the  Trust
      Administrator,  on behalf of the Trustee,  and the Master  Servicer  shall
      keep the Documents  and any proceeds  separate and distinct from all other
      property in the Master Servicer's possession, custody or control.


                                       NORWEST BANK MINNESOTA, NATIONAL
                                          ASSOCIATION



                                       By:
                                          -----------------------------


                                       Title:
                                             --------------------------

Date: ________________, 19__



<PAGE>






                                    EXHIBIT H

                                          AFFIDAVIT    PURSUANT   TO   SECTION
                                          860E(e)(4)  OF THE INTERNAL  REVENUE
                                          CODE OF 1986,  AS  AMENDED,  AND FOR
                                          NON-ERISA INVESTORS

STATE OF          ) )
                    ) ss:
COUNTY OF         ) )

            [NAME OF OFFICER], being first duly sworn, deposes and says:

            1.  That he is  [Title  of  Officer]  of  [Name of  Purchaser]  (the
"Purchaser"),  a  [description  of type of entity] duly  organized  and existing
under the laws of the [State of ] [United  States],  on behalf of which he makes
this affidavit.

            2. That the Purchaser's  Taxpayer  Identification  Number is [ ].

            3. That the Purchaser is not a  "disqualified  organization"  within
the meaning of Section  860E(e)(5),of  the  Internal  Revenue  Code of 1986,  as
amended  (the  "Code"),  or an  ERISA  Prohibited  Holder,  and  will  not  be a
"disqualified  organization"  or an  ERISA  Prohibited  Holder,  as of  [date of
transfer],  and that the  Purchaser is not acquiring  Norwest  Asset  Securities
Corporation   Mortgage   Pass-Through   Certificates,   Series  1999-18,   Class
[A-R][A-LR]  Certificate (the "Class  [A-R][A-LR]  Certificate") for the account
of, or as agent  (including  a broker,  nominee,  or other  middleman)  for, any
person or entity from which it has not  received an affidavit  substantially  in
the form of this affidavit.  For these purposes,  a "disqualified  organization"
means the United States, any state or political subdivision thereof, any foreign
government, any international organization, any agency or instrumentality of any
of the foregoing  (other than an  instrumentality  if all of its  activities are
subject to tax and a majority of its board of  directors is not selected by such
governmental entity), any cooperative organization furnishing electric energy or
providing  telephone  service  to persons in rural  areas as  described  in Code
Section  1381(a)(2)(C),  or any organization (other than a farmers'  cooperative
described  in Code  Section  521) that is exempt  from  taxation  under the Code
unless such  organization  is subject to the tax on  unrelated  business  income
imposed by Code Section 511. For these purposes,  an "ERISA  Prohibited  Holder"
means an employee benefit plan or other retirement  arrangement subject to Title
I of the Employee  Retirement Income Security Act of 1974, as amended ("ERISA"),
or Code  Section 4975 or a  governmental  plan,  as defined in Section  3(32) of
ERISA,  subject  to any  federal,  state or local law  which  is, to a  material
extent,  similar to the foregoing provisions of ERISA or the Code (collectively,
a "Plan")  or a Person  acting on behalf of or  investing  the  assets of such a
Plan.

            4. That the Purchaser  historically  has paid its debts as they have
come due and  intends  to pay its debts as they come due in the  future  and the
Purchaser  intends to pay taxes  associated  with holding the Class  [A-R][A-LR]
Certificate  as they become due.

            5. That the Purchaser  understands that it may incur tax liabilities
with  respect  to the Class  [A-R][A-LR]  Certificate  in  excess of cash  flows
generated by the Class [A-R][A-LR]  Certificate.

            6.  That the  Purchaser  will not  transfer  the  Class  [A-R][A-LR]
Certificate to any person or entity from which the Purchaser has not received an
affidavit  substantially  in the  form of this  affidavit  and as to  which  the
Purchaser has actual knowledge that the requirements set forth in paragraph 3, 4
or 7 hereof are not  satisfied or that the Purchaser has reason to know does not
satisfy the requirements set forth in paragraph 4 hereof.

            7. That the Purchaser (i) is a U.S. Person or (ii) is a person other
than a U.S.  Person (a  "Non-U.S.  Person")  that  holds  the Class  [A-R][A-LR]
Certificate  in  connection  with the conduct of a trade or business  within the
United States and has furnished the transferor and the Trust  Administrator with
an effective  Internal  Revenue  Service Form 4224 or successor form at the time
and in the manner  required  by the Code or (iii) is a Non-U.S.  Person that has
delivered to both the  transferor  and the Trust  Administrator  an opinion of a
nationally  recognized  tax counsel to the effect that the transfer of the Class
[A-R][A-LR] Certificate to it is in accordance with the requirements of the Code
and the regulations  promulgated  thereunder and that such transfer of the Class
[A-R][A-LR] Certificate will not be disregarded for federal income tax purposes.
"U.S. Person" means a citizen or resident of the United States, a corporation or
partnership  (unless,  in the case of a partnership,  Treasury  regulations  are
adopted  that provide  otherwise),  created or organized in or under the laws of
the United States,  any state thereof or the District of Columbia,  including an
entity treated as a corporation or partnership  for federal income tax purposes,
an estate whose income is subject to United States federal income tax regardless
of its  source,  or a trust  if a court  within  the  United  States  is able to
exercise primary  supervision over the  administration of such trust, and one or
more such U.S.  Persons have the authority to control all substantial  decisions
of such trust (or, to the extent  provided in applicable  Treasury  regulations,
certain trusts in existence on August 20, 1996 which are eligible to elect to be
treated as U.S. Persons).

            8. That the Purchaser  agrees to such  amendments of the Pooling and
Servicing Agreement as may be required to further effectuate the restrictions on
transfer  of  the  Class   [A-R][A-LR]   Certificate  to  such  a  "disqualified
organization,"  an agent thereof,  an ERISA  Prohibited  Holder or a person that
does not satisfy the  requirements  of paragraph 4,  paragraph 5 and paragraph 7
hereof.

            9. That the  Purchaser  consents  to the  designation  of the Master
Servicer as its agent to act as "tax matters person" of the  [Upper-Tier  REMIC]
[Lower-Tier  REMIC]  pursuant  to  Section  3.01 of the  Pooling  and  Servicing
Agreement,  and if such  designation is not permitted by the Code and applicable
law, to act as tax matters person if requested to do so.



<PAGE>




            IN WITNESS  WHEREOF,  the Purchaser has caused this instrument to be
executed on its behalf,  pursuant to authority of its Board of Directors, by its
[Title of Officer] this ___ day of , 19 __.


                                       [NAME OF PURCHASER]



                                       By:
                                          --------------------------
                                          [Name of Officer]
                                          [Title of Officer]

            Personally  appeared  before me the  above-named  [Name of Officer],
known  or  proved  to me to be  the  same  person  who  executed  the  foregoing
instrument and to be the [Title of Officer], of the Purchaser,  and acknowledged
to me that he [she]  executed  the same as his  [her]  free act and deed and the
free act and deed of the Purchaser.

            Subscribed and sworn before me this __ day of _________, 19 __.



- -----------------------------
NOTARY PUBLIC

COUNTY OF ____________________

STATE OF _____________________

My commission expires the __ day of __________, 19__.



<PAGE>




                                    EXHIBIT I





            [Letter from Transferor of Class [A-R][A-LR] Certificate]





                                     [Date]

First Union National Bank
230 South Tryon Street
Charlotte, North Carolina 28288
     Re:   Norwest Asset Securities Corporation,
           Series 1999-18, Class [A-R][A-LR]

Ladies and Gentlemen:

            [Transferor]  has reviewed the attached  affidavit of  [Transferee],
and has no actual knowledge that such affidavit is not true and has no reason to
know that the information contained in paragraph 4 thereof is not true.


                                       Very truly yours,


                                       [Transferor]



                                       ----------------------



<PAGE>






                                    EXHIBIT J

                      NORWEST ASSET SECURITIES CORPORATION

                       MORTGAGE PASS-THROUGH CERTIFICATES
                                 SERIES 1999-18
                    CLASS [A-PO][B-4][B-5][B-6] CERTIFICATES

                               TRANSFEREE'S LETTER



                                                    ----------------- --, ----

First Union National Bank
230 South Tryon Street
Charlotte, North Carolina 28288

Norwest Asset Securities Corporation
7485 New Horizon Way
Frederick, Maryland 21703

            The undersigned (the "Purchaser") proposes to purchase Norwest Asset
Securities Corporation Mortgage Pass-Through Certificates, Series 1999-18, Class
[A-PO][B-4][B-5][B-6]    Certificates    (the    "Class    [A-PO][B-4][B-5][B-6]
Certificates")  in the  principal  amount  of  $___________.  In doing  so,  the
Purchaser hereby acknowledges and agrees as
follows:

            Section 1.  Definitions.  Each  capitalized term used herein and not
otherwise  defined  herein shall have the meaning  ascribed to it in the Pooling
and Servicing  Agreement,  dated as of June 29, 1999 (the "Pooling and Servicing
Agreement")  among  Norwest  Asset  Securities   Corporation,   as  seller  (the
"Seller"), Norwest Bank Minnesota, National Association, as master servicer (the
"Master  Servicer"),  First Union  National  Bank, as trust  administrator  (the
"Trust  Administrator")  and the United  States  Trust  Company of New York,  as
trustee  (the  "Trustee"),  of Norwest  Asset  Securities  Corporation  Mortgage
Pass-Through Certificates, Series 1999-18.

            Section 2.  Representations  and  Warranties  of the  Purchaser.  In
connection with the proposed transfer,  the Purchaser represents and warrants to
the Seller, the Master Servicer and the Trust Administrator that:

            (a)   The Purchaser is duly organized,  validly existing and in good
standing under the laws of the jurisdiction in which the Purchaser is organized,
is authorized to invest in the Class [A-PO][B-4][B-5][B-6]  Certificates, and to
enter into this Agreement, and duly executed and delivered this Agreement.

            (b)   The  Purchaser  is acquiring  the Class  [A-PO][B-4][B-5][B-6]
Certificates  for its  own  account  as  principal  and  not  with a view to the
distribution thereof, in whole or in part.

            [(c)  The Purchaser has knowledge of financial and business  matters
and is capable of evaluating  the merits and risks of an investment in the Class
[A-PO][B-4][B-5][B-6]  Certificates;  the Purchaser has sought such  accounting,
legal  and tax  advice  as it has  considered  necessary  to  make  an  informed
investment  decision;  and the Purchaser is able to bear the economic risk of an
investment  in the Class  [A-PO][B-4][B-5][B-6]  Certificates  and can  afford a
complete loss of such  investment.] The Purchaser is a "Qualified  Institutional
Buyer" within the meaning of Rule 144A of the Act.]

            (d)   The Purchaser confirms that (a) it has received and reviewed a
copy of the Private Placement  Memorandum dated __________ __, 19__, relating to
the Class  [A-PO][B-4][B-5][B-6]  Certificates  and  reviewed,  to the extent it
deemed appropriate,  the documents attached thereto or incorporated by reference
therein, (b) it has had the opportunity to ask questions of, and receive answers
from the Seller concerning the Class [A-PO][B-4][B-5][B-6]  Certificates and all
matters  relating  thereto,  and obtain any  additional  information  (including
documents) relevant to its decision to purchase the Class  [A-PO][B-4][B-5][B-6]
Certificates  that the Seller  possesses  or can  possess  without  unreasonable
effort or expense and (c) it has undertaken its own independent  analysis of the
investment in the Class [A-PO][B-4][B-5][B-6]  Certificates.  The Purchaser will
not use or disclose any  information it receives in connection with its purchase
of the Class [A-PO][B-4][B-5][B-6]  Certificates other than in connection with a
subsequent sale of Class [A-PO][B-4][B-5][B-6] Certificates.

            (e)   Either (i) the  Purchaser  is not an employee  benefit plan or
other  retirement  arrangement  subject  to Title I of the  Employee  Retirement
Income  Security  Act of 1974,  as amended,  ("ERISA"),  or Section  4975 of the
Internal Revenue Code of 1986, as amended (the "Code"),  or a governmental plan,
as defined in Section 3(32) of ERISA subject to any federal,  state or local law
("Similar  Law")  which is,  to a  material  extent,  similar  to the  foregoing
provisions  of ERISA or the Code  (collectively,  a "Plan"),  an agent acting on
behalf of a Plan, or a person  utilizing the assets of a Plan or (ii) [for Class
[B-4][B-5][B-6] Certificates only] if the Purchaser is an insurance company, (A)
the source of funds used to purchase the Class [B-4][B-5][B-6] Certificate is an
"insurance  company general account" (as such term is defined in Section V(e) of
Prohibited  Transaction Class Exemption 95-60 ("PTE 95-60"),  60 Fed. Reg. 35925
(July 12,  1995),  (B) there is no Plan with respect to which the amount of such
general  account's  reserves and liabilities  for the contract(s)  held by or on
behalf of such Plan and all other  Plans  maintained  by the same  employer  (or
affiliate  thereof as  defined  in Section  V(a)(1) of PTE 95-60) or by the same
employee  organization  exceeds 10% of the total of all reserves and liabilities
of such general  account (as such amounts are  determined  under Section I(a) of
PTE 95-60) at the date of  acquisition  and (C) the purchase and holding of such
Class  [B-4][B-5][B-6]  Certificates  are  covered by  Sections I and III of PTE
95-60  or  (iii)  the  Purchaser  has  provided  (a) a  "Benefit  Plan  Opinion"
satisfactory to the Seller and the Trust  Administrator  of the Trust Estate and
(b) such other opinions of counsel, officers' certificates and agreements as the
Seller or the Master  Servicer may have  required.  A Benefit Plan Opinion is an
opinion of counsel to the effect that the proposed  transfer  will not cause the
assets of the Trust  Estate to be regarded  as "plan  assets" and subject to the
prohibited transaction provisions of ERISA, the Code or Similar Law and will not
subject the Trust Administrator,  the Trustee, the Seller or the Master Servicer
to any  obligation in addition to those  undertaken in the Pooling and Servicing
Agreement  (including any liability for civil  penalties or excise taxes imposed
pursuant to ERISA, Section 4975 of the Code or Similar Law).

            (f)   If the  Purchaser is a depository  institution  subject to the
jurisdiction of the Office of the Comptroller of the Currency ("OCC"), the Board
of  Governors  of the  Federal  Reserve  System  ("FRB"),  the  Federal  Deposit
Insurance Corporation ("FDIC"),  the Office of Thrift Supervision ("OTS") or the
National Credit Union  Administration  ("NCUA"),  the Purchaser has reviewed the
"Supervisory  Policy Statement on Securities  Activities" dated January 28, 1992
of the Federal Financial Institutions  Examination Council and the June 15, 1994
Interim  Revision  thereto as adopted by the OCC, FRB,  FDIC, OTS and NCUA (with
modifications  as  applicable),  as  appropriate,  other  applicable  investment
authority,  rules, supervisory policies and guidelines of these agencies and, to
the extent  appropriate,  state banking  authorities  and has concluded that its
purchase  of  the  Class  [A-PO][B-4][B-5][B-6]  Certificates  is in  compliance
therewith.

            Section 3.  Transfer of Class [A-PO][B-4][B-5][B-6] Certificates.

            (a)   The Purchaser understands that the Class [A-PO][B-4][B-5][B-6]
Certificates  have not been  registered  under the  Securities  Act of 1933 (the
"Act") or any state  securities laws and that no transfer may be made unless the
Class  [A-PO][B-4][B-5][B-6]  Certificates  are  registered  under  the  Act and
applicable state law or unless an exemption from registration is available.  The
Purchaser further  understands that neither the Seller,  the Master Servicer nor
the  Trust   Administrator  is  under  any  obligation  to  register  the  Class
[A-PO][B-4][B-5][B-6]  Certificates or make an exemption available. In the event
that such a transfer is to be made in reliance upon an exemption from the Act or
applicable state securities laws, (i) the Trust  Administrator shall require, in
order  to  assure  compliance  with  such  laws,  that  the  Certificateholder's
prospective  transferee certify to the Seller and the Trust  Administrator as to
the factual basis for the registration or  qualification  exemption relied upon,
and (ii) unless the transferee is a "Qualified  Institutional  Buyer" within the
meaning of Rule 144A of the Act, the Trust  Administrator  or the Seller may, if
such  transfer is made within three years from the later of (a) the Closing Date
or (b) the last date on which the Seller or any  affiliate  thereof was a holder
of the  Certificates  proposed to be transferred,  require an Opinion of Counsel
that such transfer may be made  pursuant to an exemption  from the Act and state
securities  laws,  which Opinion of Counsel shall not be an expense of the Trust
Administrator,  the Master  Servicer or the Seller.  Any such  Certificateholder
desiring to effect such transfer shall,  and does hereby agree to, indemnify the
Trustee, the Trust Administrator,  the Master Servicer,  any Paying Agent acting
on behalf of the Trust  Administrator  and the Seller against any liability that
may result if the  transfer is not so exempt or is not made in  accordance  with
such federal and state laws.

            (b)   No transfer of a Class [A-PO][B-4][B-5][B-6] Certificate shall
be made unless the  transferee  provides the Seller and the Trust  Administrator
with a Transferee's Letter, substantially in the form of this Agreement.

            (c)   The     Purchaser      acknowledges     that     its     Class
[A-PO][B-4][B-5][B-6]  Certificates  bear a legend  setting forth the applicable
restrictions on transfer.



<PAGE>




            IN WITNESS WHEREOF,  the undersigned has caused this Agreement to be
validly  executed by its duly  authorized  representative  as of the day and the
year first above written.


                                       [PURCHASER]



                                       By:
                                          ---------------------------------



                                       Its:
                                           --------------------------------



<PAGE>






                                    EXHIBIT K






                      NORWEST ASSET SECURITIES CORPORATION

                       MORTGAGE PASS-THROUGH CERTIFICATES
                                 SERIES 1999-18
                CLASS [A-9] [A-22] [B-1] [B-2] [B-3] CERTIFICATES

                               TRANSFEREE'S LETTER




                                                     ---------------- --, ----

First Union National Bank
230 South Tryon Street
Charlotte, North Carolina 28288

Norwest Asset Securities Corporation
7485 New Horizon Way
Frederick, Maryland 21703

            The undersigned (the "Purchaser") proposes to purchase Norwest Asset
Securities Corporation Mortgage Pass-Through Certificates, Series 1999-18, Class
[A-9]   [A-22]   [B-1][B-2][B-3]   Certificates   (the   "Class   [A-9]   [A-22]
[B-1][B-2][B-3] Certificates") in the principal amount of $___________. In doing
so, the Purchaser hereby acknowledges and agrees as
follows:

            Section 1.  Definitions.  Each  capitalized term used herein and not
otherwise  defined  herein shall have the meaning  ascribed to it in the Pooling
and Servicing  Agreement,  dated as of June 29, 1999 (the "Pooling and Servicing
Agreement")  among  Norwest  Asset  Securities   Corporation,   as  seller  (the
"Seller"), Norwest Bank Minnesota, National Association, as master servicer (the
"Master  Servicer"),  First Union  National  Bank, as trust  administrator  (the
"Trust  Administrator")  and the United  States  Trust  Company of New York,  as
trustee  (the  "Trustee")  of  Norwest  Asset  Securities  Corporation  Mortgage
Pass-Through Certificates, Series 1999-18.

            Section 2.  Representations  and  Warranties  of the  Purchaser.  In
connection with the proposed transfer,  the Purchaser represents and warrants to
the Seller, the Master Servicer and the Trust Administrator that:

            Either (i) the  Purchaser  is not an employee  benefit plan or other
retirement  arrangement  subject to Title I of the  Employee  Retirement  Income
Security  Act of 1974,  as amended,  ("ERISA"),  or Section 4975 of the Internal
Revenue Code of 1986,  as amended  (the  "Code"),  or a  governmental  plan,  as
defined in Section  3(32) of ERISA  subject to any  federal,  state or local law
("Similar  Law")  which is,  to a  material  extent,  similar  to the  foregoing
provisions  of ERISA or the Code  (collectively,  a "Plan"),  an agent acting on
behalf  of a Plan,  or a person  utilizing  the  assets of a Plan or (ii) if the
Purchaser is an insurance company,  (A) the source of funds used to purchase the
Class [A-9] [A-22] [B-1][B-2][B-3]  Certificate is an "insurance company general
account"  (as such term is  defined in Section  V(e) of  Prohibited  Transaction
Class  Exemption  95-60 ("PTE 95-60"),  60 Fed. Reg. 35925 (July 12, 1995),  (B)
there is no Plan with  respect  to which the  amount of such  general  account's
reserves and liabilities  for the contract(s)  held by or on behalf of such Plan
and all other Plans  maintained by the same  employer (or  affiliate  thereof as
defined in Section  V(a)(1) of PTE 95-60) or by the same employee  organization,
exceed 10% of the total of all reserves and  liabilities of such general account
(as such amounts are determined  under Section I(a) of PTE 95-60) at the date of
acquisition  and  (C) the  purchase  and  holding  of such  Class  [A-9]  [A-22]
[B-1][B-2][B-3]  Certificates  are covered by Sections I and III of PTE 95-60 or
(iii) the Purchaser has provided (a) a "Benefit  Plan Opinion"  satisfactory  to
the Seller and the Trust  Administrator  of the Trust  Estate and (b) such other
opinions of counsel,  officers' certificates and agreements as the Seller or the
Master  Servicer  may have  required.  A Benefit  Plan  Opinion is an opinion of
counsel to the effect that the  proposed  transfer  will not cause the assets of
the Trust Estate to be regarded as "plan  assets" and subject to the  prohibited
transaction  provisions  of ERISA,  the Code or Similar Law and will not subject
the Trust  Administrator,  the Trustee, the Seller or the Master Servicer to any
obligation  in  addition  to  those  undertaken  in the  Pooling  and  Servicing
Agreement  (including any liability for civil  penalties or excise taxes imposed
pursuant to ERISA, Section 4975 of the Code or Similar Law).

            IN WITNESS WHEREOF,  the undersigned has caused this Agreement to be
validly  executed by its duly  authorized  representative  as of the day and the
year first above written.


                                       [PURCHASER]



                                       By:
                                          --------------------------------



                                       Its:
                                           -------------------------------


                                       [Reserved]



<PAGE>






                                    EXHIBIT L

                              SERVICING AGREEMENTS

                   Norwest Mortgage, Inc. Servicing Agreement

              First Union Mortgage Corporation Servicing Agreement

              Merrill Lynch Credit Corporation Servicing Agreement

                         Bank United Servicing Agreement

                   SunTrust Mortgage, Inc. Servicing Agreement

                Countrywide Home Loans, Inc. Servicing Agreement

                 NOVUS Financial Corporation Servicing Agreement

               The Huntington Mortgage Company Servicing Agreement

               National City Mortgage Company Servicing Agreement

                    FT Mortgage Companies Servicing Agreement

                   Hibernia National Bank Servicing Agreement

                      HomeSide Lending Servicing Agreement

                    Plymouth Savings Bank Servicing Agreement

               Chase Manhattan Mortgage Corp. Servicing Agreement





<PAGE>








                                    EXHIBIT M

                      [FORM OF SPECIAL SERVICING AGREEMENT]

                 SPECIAL SERVICING AND COLLATERAL FUND AGREEMENT

            This  SPECIAL   SERVICING  AND   COLLATERAL   FUND   AGREEMENT  (the
"Agreement")  is made and entered into as of , between  Norwest Bank  Minnesota,
National Association (the "Company" and "Norwest Bank") and (the "Purchaser").

                              PRELIMINARY STATEMENT

             _____  is the  holder  of the  entire  interest  in  Norwest  Asset
Securities Corporation Mortgage Pass-Through Certificates, Series 1999-18, Class
____ (the "Class B Certificates"). The Class B Certificates were issued pursuant
to a Pooling and  Servicing  Agreement  dated as of June 29, 1999 among  Norwest
Asset Securities Corporation, as seller (the "Seller"),  Norwest Bank Minnesota,
National  Association,  as Master Servicer,  First Union National Bank, as Trust
Administrator, and United States Trust Company of New York, as Trustee.
 intends to resell all of the Class B Certificates  directly to the Purchaser on
or promptly after the date hereof.

            In connection  with such sale,  the parties  hereto have agreed that
the  Company  will cause,  to the extent that the Company as Master  Servicer is
granted  such  authority  in  the  related  Servicing  Agreements,  the  related
servicers  (each a related  "Servicer"),  which service the Mortgage Loans which
comprise  the Trust  Estate  related to the above  referenced  series  under the
related servicing agreements (each a related "Servicing  Agreement"),  to engage
in certain special servicing procedures relating to foreclosures for the benefit
of the Purchaser, and that the Purchaser will deposit funds in a collateral fund
to cover any losses  attributable to such procedures as well as all advances and
costs in connection therewith, as set forth herein.

            In  consideration of the mutual  agreements  herein  contained,  the
receipt and  sufficiency of which are hereby  acknowledged,  the Company and the
Purchaser agree that the following  provisions  shall become effective and shall
be binding on and enforceable by the Company and the Purchaser:

                                    ARTICLE I

                                   DEFINITIONS

            Section 1.01 Defined Terms.

            Whenever used in this  Agreement,  the following  words and phrases,
unless the context otherwise requires, shall have the following meanings:

            Business  Day: Any day other than (i) a Saturday or a Sunday or (ii)
a day on which  banking  institutions  in the State of New York are  required or
authorized by law or executive order to be closed.

            Collateral Fund: The fund  established and maintained  pursuant to
Section 3.01 hereof.

            Collateral Fund Permitted Investments: Either (i) obligations of, or
obligations fully guaranteed as to principal and interest by, the United States,
or any agency or instrumentality  thereof,  provided such obligations are backed
by the full faith and  credit of the United  States,  (ii) a money  market  fund
rated in the highest rating  category by a nationally  recognized  rating agency
selected by the Company,  (iii) cash,  (iv) mortgage  pass-through  certificates
issued or guaranteed by Government National Mortgage Association, FNMA or FHLMC,
(v) commercial paper (including both  non-interest-bearing  discount obligations
and interest-bearing  obligations payable on demand or on a specified date), the
issuer of which may be an affiliate  of the Company,  having at the time of such
investment a rating of at least A-1 by Standard  and Poor's  ("S&P") or at least
D-1 by Duff & Phelps Credit Rating Co.  ("DCR") or (vi) demand and time deposits
in,  certificates  of deposit of, any  depository  institution  or trust company
(which may be an affiliate of the  Company)  incorporated  under the laws of the
United  States of America or any state  thereof and subject to  supervision  and
examination by federal and/or state banking authorities,  so long as at the time
of such investment  either (x) the long-term debt obligations of such depository
institution or trust company have a rating of at least AA by DCR or S&P, (y) the
certificate of deposit or other unsecured  short-term  debt  obligations of such
depository  institution or trust company have a rating of at least D-1 by DCR or
A-1 by S&P or (z) the  depository  institution  or trust  company is one that is
acceptable  to either DCR or S&P and,  for each of the  preceding  clauses  (i),
(iv), (v) and (vi), the maturity  thereof shall be not later than the earlier to
occur of (A) 30 days from the date of the  related  investment  and (B) the next
succeeding  Distribution  Date as defined in the related  Pooling and  Servicing
Agreement.

            Commencement  of  Foreclosure:  The first official  action  required
under local law in order to commence  foreclosure  proceedings  or to schedule a
trustee's  sale under a deed of trust,  including (i) in the case of a mortgage,
any filing or service of process  necessary to commence an action to  foreclose,
or (ii) in the case of a deed of  trust,  posting,  the  publishing,  filing  or
delivery of a notice of sale, but not including in either case (x) any notice of
default,  notice of intent to foreclose or sell or any other action prerequisite
to  the  actions  specified  in (i) or  (ii)  above,  (y)  the  acceptance  of a
deed-in-lieu  of foreclosure  (whether in connection  with a sale of the related
property or otherwise) or (z) initiation and completion of a short pay-off.

            Current Appraisal: With respect to any Mortgage Loan as to which the
Purchaser has made an Election to Delay Foreclosure, an appraisal of the related
Mortgaged  Property  obtained  by the  Purchaser  at its  own  expense  from  an
independent  appraiser  (which  shall  not be an  affiliate  of  the  Purchaser)
acceptable to the Company as nearly contemporaneously as practicable to the time
of  the  Purchaser's  election,   prepared  based  on  the  Company's  customary
requirements for such appraisals.

            Election to Delay  Foreclosure:  Any election by the  Purchaser to
delay  the  Commencement  of  Foreclosure,  made in  accordance  with  Section
2.02(b).

            Election to  Foreclose:  Any election by the  Purchaser to proceed
with the Commencement of Foreclosure, made in accordance with Section 2.03(a).

            Monthly  Advances:  Principal and interest  advances and servicing
advances including costs and expenses of foreclosure.

            Required  Collateral Fund Balance:  As of any date of determination,
an amount  equal to the  aggregate  of all  amounts  previously  required  to be
deposited in the Collateral Fund pursuant to Section  2.02(d) (after  adjustment
for all  withdrawals  and  deposits  pursuant  to Section  2.02(e))  and Section
2.03(b) (after  adjustment for all withdrawals and deposits  pursuant to Section
2.03(c)) and Section 3.02 to be reduced by all withdrawals therefrom pursuant to
Section 2.02(g) and Section 2.03(d).

            Section 1.02 Definitions Incorporated by Reference.

            All capitalized  terms not otherwise defined in this Agreement shall
have the meanings assigned in the Pooling and Servicing Agreement.

                                   ARTICLE II

                          SPECIAL SERVICING PROCEDURES

            Section 2.01 Reports and Notices.

            (a)   In  connection  with the  performance  of its duties under the
Pooling and  Servicing  Agreement  relating to the  realization  upon  defaulted
Mortgage  Loans,  the Company as Master  Servicer shall provide to the Purchaser
the following notices and reports:

            (i) Within  five  Business  Days after  each  Distribution  Date (or
      included in or with the monthly statements to Certificateholders  pursuant
      to the Pooling and Servicing Agreement), the Company, shall provide to the
      Purchaser a report,  using the same  methodology  and  calculations in its
      standard servicing reports,  indicating for the Trust Estate the number of
      Mortgage  Loans that are (A) thirty days,  (B) sixty days, (C) ninety days
      or more  delinquent or (D) in  foreclosure,  and  indicating for each such
      Mortgage Loan the loan number and outstanding principal balance.

            (ii) Prior to the Commencement of Foreclosure in connection with any
      Mortgage  Loan, the Company shall cause (to the extent that the Company as
      Master  Servicer  is  granted  such  authority  in the  related  Servicing
      Agreement)  the Servicer to provide the  Purchaser  with a notice (sent by
      telecopier)  of such proposed and imminent  foreclosure,  stating the loan
      number and the aggregate amount owing under the Mortgage Loan. Such notice
      may be  provided  to the  Purchaser  in the  form of a copy of a  referral
      letter from such Servicer to an attorney  requesting  the  institution  of
      foreclosure.

            (b)   If requested  by the  Purchaser,  the Company  shall cause the
Servicer  (to the extent  that the Company as Master  Servicer  is granted  such
authority in the related  Servicing  Agreement) to make its servicing  personnel
available  (during  their  normal  business  hours)  to  respond  to  reasonable
inquiries,  by phone or in writing by facsimile,  electronic,  or overnight mail
transmission,  by the Purchaser in connection  with any Mortgage Loan identified
in a report under  subsection (a) (i) (B), (a) (i) (C), (a) (i) (D), or (a) (ii)
which has been given to the Purchaser;  provided,  that (1) the related Servicer
shall only be required to provide  information that is readily accessible to its
servicing personnel and is  non-confidential  and (2) the related Servicer shall
respond   within  five   Business   Days  orally  or  in  writing  by  facsimile
transmission.

            (c)   In addition  to the  foregoing,  the  Company  shall cause the
Servicer  (to the extent  that the Company as Master  Servicer  is granted  such
authority in the related  Servicing  Agreement) to provide to the Purchaser such
information as the Purchaser may reasonably request provided, however, that such
information  is consistent  with normal  reporting  practices,  concerning  each
Mortgage  Loan that is at least ninety days  delinquent  and each  Mortgage Loan
which has become  real estate  owned,  through  the final  liquidation  thereof;
provided,   that  the  related  Servicer  shall  only  be  required  to  provide
information  that  is  readily  accessible  to its  servicing  personnel  and is
non-confidential  provided,  however,  that the  Purchaser  will  reimburse  the
Company and the related Servicer for any out of pocket expenses.

            Section 2.02 Purchaser's Election to Delay Foreclosure Proceedings.

            (a)   The Purchaser  shall be deemed to direct the Company to direct
(to the extent that the Company as Master  Servicer is granted such authority in
the related Servicing Agreement) the related Servicer that in the event that the
Company does not receive written notice of the Purchaser's  election pursuant to
subsection (b) below within 24 hours (exclusive of any intervening  non-Business
Days) of  transmission  of the notice provided by the Company under Section 2.01
(a) (ii)  subject to  extension  as set forth in Section  2.02(b),  the  related
Servicer may proceed with the  Commencement  of  Foreclosure  in respect of such
Mortgage Loan in accordance with its normal foreclosure policies without further
notice  to the  Purchaser.  Any  foreclosure  that  has  been  initiated  may be
discontinued  (i) without  notice to the Purchaser if the Mortgage Loan has been
brought  current or if a refinancing  or  prepayment  occurs with respect to the
Mortgage  Loan  (including  by means of a short  payoff  approved by the related
Servicer) or (ii) if the related Servicer has reached the terms of a forbearance
agreement  with the  borrower.  In the latter  case,  the related  Servicer  may
complete such forbearance agreement unless instructed otherwise by the Purchaser
within two Business Days notification.

            (b)   In  connection  with any Mortgage Loan with respect to which a
notice under Section 2.01(a)(ii) has been given to the Purchaser,  the Purchaser
may elect to instruct  the  Company to cause,  to the extent that the Company as
Master  Servicer is granted such authority in the related  Servicing  Agreement,
the related Servicer to delay the Commencement of Foreclosure until such time as
the  Purchaser  determines  that  the  related  Servicer  may  proceed  with the
Commencement of  Foreclosure.  Such election must be evidenced by written notice
received  within 24 hours  (exclusive of any intervening  non-Business  Days) of
transmission  of the notice  provided by the Company under Section  2.01(a)(ii).
Such 24 hour period  shall be extended  for no longer  than an  additional  four
Business Days after the receipt of the  information  if the  Purchaser  requests
additional information related to such foreclosure;  provided, however, that the
Purchaser  will have at least  one  Business  Day to  respond  to any  requested
additional  information.  Any such additional information shall be provided only
to the extent it (i) is not confidential in nature and (ii) is obtainable by the
related  Servicer  from  existing  reports,  certificates  or  statements  or is
otherwise readily  accessible to its servicing  personnel.  The Purchaser agrees
that it has no right to deal with the mortgagor during such period.  However, if
such servicing activities include acceptance of a deed-in-lieu of foreclosure or
short  payoff,  the  Purchaser  will be notified and given two Business  Days to
respond.

            (c)   With  respect to any Mortgage  Loan as to which the  Purchaser
has made an Election to Delay Foreclosure,  the Purchaser shall obtain a Current
Appraisal  as soon as  practicable,  but in no event more than 15 business  days
thereafter, and shall provide the Company with a copy of such Current Appraisal.

            (d)   Within  two  Business  Days of making  any  Election  to Delay
Foreclosure,  the  Purchaser  shall remit by wire  transfer to the Company,  for
deposit in the Collateral Fund, an amount,  as calculated by the Company,  equal
to the sum of (i) 125% of the  greater  of the unpaid  principal  balance of the
Mortgage  Loan and the  value  shown in the  Current  Appraisal  referred  to in
subsection  (c) above (or, if such Current  Appraisal has not yet been obtained,
the Company's  estimate  thereof,  in which case the required deposit under this
subsection  shall be adjusted upon obtaining such Current  Appraisal),  and (ii)
three months' interest on the Mortgage Loan at the applicable  Mortgage Interest
Rate.  If any  Election to Delay  Foreclosure  extends for a period in excess of
three  months  (such  excess  period  being  referred  to herein as the  "Excess
Period"), within two Business Days the Purchaser shall remit by wire transfer in
advance to the  Company for  deposit in the  Collateral  Fund the amount of each
additional month's interest, as calculated by the Company,  equal to interest on
the  Mortgage  Loan at the  applicable  Mortgage  Interest  Rate for the  Excess
Period. The terms of this Agreement will no longer apply to the servicing of any
Mortgage  Loan upon the  failure of the  Purchaser  to deposit  any of the above
amounts  relating to the Mortgage  Loan within two Business Days of the Election
to Delay  Foreclosure  or within two Business  Days of the  commencement  of the
Excess Period subject to Section 3.01.

            (e)   With  respect to any Mortgage  Loan as to which the  Purchaser
has made an Election to Delay  Foreclosure,  the Company may  withdraw  from the
Collateral  Fund from time to time amounts  necessary  to reimburse  the related
Servicer for all related Monthly  Advances and Liquidation  Expenses  thereafter
made by such Servicer in accordance with the Pooling and Servicing Agreement and
the  related  Servicing  Agreement.  To the  extent  that the amount of any such
Liquidation  Expenses is determined by the Company based on estimated costs, and
the actual  costs are  subsequently  determined  to be higher,  the  Company may
withdraw the additional  amount from the Collateral  Fund. In the event that the
Mortgage Loan is brought current by the mortgagor and the foreclosure  action is
discontinued,  the  amounts  so  withdrawn  from the  Collateral  Fund  shall be
redeposited if and to the extent that  reimbursement  therefor from amounts paid
by the  mortgagor  is not  prohibited  pursuant  to the  Pooling  and  Servicing
Agreement  or the related  Servicing  Agreement,  applicable  law or the related
mortgage note. Except as provided in the preceding  sentence,  amounts withdrawn
from the  Collateral  Fund to cover Monthly  Advances and  Liquidation  Expenses
shall not be redeposited  therein or otherwise  reimbursed to the Purchaser.  If
and when any such Mortgage Loan is brought current by the mortgagor, all amounts
remaining  in the  Collateral  Fund in  respect  of such  Mortgage  Loan  (after
adjustment  for  all  permitted   withdrawals  and  deposits  pursuant  to  this
subsection) shall be released to the Purchaser.

            (f)   With  respect to any Mortgage  Loan as to which the  Purchaser
has made an Election to Delay  Foreclosure,  the related Servicer shall continue
to service the Mortgage Loan in accordance with its customary  procedures (other
than the delay in Commencement of Foreclosure as provided  herein).  If and when
the Purchaser  shall notify the Company that it believes that it is  appropriate
to do so, the related Servicer may proceed with the Commencement of Foreclosure.
In any event,  if the Mortgage  Loan is not brought  current by the mortgagor by
the time the loan becomes 6 months delinquent, the Purchaser's election shall no
longer be effective  and at the  Purchaser's  option,  either (i) the  Purchaser
shall  purchase  the Mortgage  Loan from the related  Trust Estate at a purchase
price equal to the fair market  value as shown on the Current  Appraisal,  to be
paid by (x) applying any balance in the Collateral Fund to such to such purchase
price, and (y) to the extent of any deficiency,  by wire transfer of immediately
available  funds from the  Purchaser  to the  Company for deposit in the related
Certificate  Account;  or (ii)  the  related  Servicer  shall  proceed  with the
Commencement of Foreclosure.

            (g)   Upon the  occurrence  of a  liquidation  with  respect  to any
Mortgage  Loan as to which the Purchaser  made an Election to Delay  Foreclosure
and as to  which  the  related  Servicer  proceeded  with  the  Commencement  of
Foreclosure in accordance with subsection (f) above, the Company shall calculate
the amount, if any, by which the value shown on the Current  Appraisal  obtained
under  subsection  (c) exceeds the actual  sales price  obtained for the related
Mortgaged Property (net of Liquidation  Expenses and accrued interest related to
the extended  foreclosure  period), and the Company shall withdraw the amount of
such excess from the Collateral  Fund,  shall remit the same to the Trust Estate
and in its  capacity as Master  Servicer  shall apply such amount as  additional
Liquidation  Proceeds  pursuant to the Pooling and  Servicing  Agreement.  After
making such withdrawal,  all amounts remaining in the Collateral Fund in respect
of such  Mortgage  Loan (after  adjustment  for all  permitted  withdrawals  and
deposits pursuant to this Agreement) shall be released to the Purchaser.

            Section   2.03   Purchaser's   Election  to   Commence   Foreclosure
Proceedings.

            (a)   In connection  with any Mortgage  Loan  identified in a report
under Section 2.01(a)(i)(B),  the Purchaser may elect to instruct the Company to
cause,  to the extent  that the  Company  as Master  Servicer  is  granted  such
authority in the related  Servicing  Agreement,  the related Servicer to proceed
with the Commencement of Foreclosure as soon as practicable.  Such election must
be evidenced by written  notice  received by the Company by 5:00 p.m.,  New York
City time, on the third Business Day following the delivery of such report under
Section 2.01(a)(i).

            (b)   Within two Business  Days of making any Election to Foreclose,
the Purchaser shall remit to the Company, for deposit in the Collateral Fund, an
amount,  as  calculated  by the  Company,  equal to 125% of the  current  unpaid
principal balance of the Mortgage Loan and three months interest on the Mortgage
Loan at the  applicable  Mortgage  Interest  Rate. If and when any such Mortgage
Loan is brought current by the mortgagor,  all amounts in the Collateral Fund in
respect of such Mortgage Loan (after  adjustment  for all permitted  withdrawals
and deposits  pursuant to this Agreement)  shall be released to the Purchaser if
and to the extent that reimbursement therefor from amounts paid by the mortgagor
is not prohibited pursuant to the Pooling and Servicing Agreement or the related
Servicing  Agreement,  applicable law or the related mortgage note. The terms of
this  Agreement  will no longer apply to the servicing of any Mortgage Loan upon
the  failure of the  Purchaser  to deposit  the above  amounts  relating  to the
Mortgage Loan within two Business  Days of the Election to Foreclose  subject to
Section 3.01.

            (c)   With  respect to any Mortgage  Loan as to which the  Purchaser
has made an  Election  to  Foreclose,  the related  Servicer  shall  continue to
service the Mortgage Loan in accordance  with its  customary  procedures  (other
than Commencement of Foreclosure as provided herein).  In connection  therewith,
the Company shall have the same rights to make  withdrawals for Monthly Advances
and Liquidations Expenses from the Collateral Fund as are provided under Section
2.02(e), and the Company shall make reimbursements thereto to the limited extent
provided under such subsection in accordance with its customary procedures.  The
Company shall not be required to cause, to the extent that the Company as Master
Servicer is granted  such  authority  in the related  Servicing  Agreement,  the
related Servicer to proceed with the Commencement of Foreclosure if (i) the same
is stayed as a result of the  mortgagor's  bankruptcy or is otherwise  barred by
applicable  law, or to the extent that all legal  conditions  precedent  thereto
have not yet been complied with, or (ii) the Company  believes there is a breach
of representations or warranties by the Company, a Servicer,  or a Seller, which
may result in a repurchase or  substitution  of such Mortgage Loan, or (iii) the
Company or related Servicer  reasonably  believes the Mortgaged  Property may be
contaminated with or affected by hazardous wastes or hazardous  substances (and,
without  limiting  the  related   Servicer's  right  not  to  proceed  with  the
Commencement of Foreclosure, the Company supplies the Purchaser with information
supporting  such  belief).  Any  foreclosure  that  has  been  initiated  may be
discontinued  (x) without  notice to the Purchaser if the Mortgage Loan has been
brought  current or if a refinancing  or  prepayment  occurs with respect to the
Mortgage Loan  (including by means of a short payoff  approved by the Purchaser)
or (y) with  notice to the  Purchaser  if the related  Servicer  has reached the
terms of a forbearance  agreement unless  instructed  otherwise by the Purchaser
within two Business Days of such  notification.  Any such  instruction  shall be
based upon a decision that such forbearance  agreement is not in conformity with
reasonable servicing practices.

            (d)   Upon the  occurrence  of a  liquidation  with  respect  to any
Mortgage Loan as to which the Purchaser  made an Election to Foreclose and as to
which the related  Servicer  proceeded with the  Commencement  of Foreclosure in
accordance with subsection (c) above, the Company shall calculate the amount, if
any, by which the unpaid  principal  balance of the Mortgage Loan at the time of
liquidation  (plus  all  unreimbursed   interest  and  servicing   advances  and
Liquidation  Expenses  in  connection  therewith  other than those paid from the
Collateral  Fund)  exceeds  the actual  sales  price  obtained  for the  related
Mortgaged  Property,  and the Company  shall  withdraw the amount of such excess
from the  Collateral  Fund,  shall remit the same to the Trust Estate and in its
capacity as Master  Servicer  shall apply such amount as additional  Liquidation
Proceeds  pursuant to the Pooling and  Servicing  Agreement.  After  making such
withdrawal,  all amounts  remaining in the Collateral Fund (after adjustment for
all  withdrawals  and  deposits  pursuant to  subsection  (c) in respect of such
Mortgage Loan shall be released to the Purchaser.

            Section 2.04 Termination.

            (a)   With  respect  to all  Mortgage  Loans  included  in the Trust
Estate,  the Purchaser's  right to make any Election to Delay Foreclosure or any
Election to Foreclose  and the  Company's  obligations  under Section 2.01 shall
terminate (i) at such time as the Principal  Balance of the Class B Certificates
has been  reduced  to zero,  (ii) if the  greater  of (x) 43% (or such  lower or
higher percentage that represents the related  Servicer's actual historical loss
experience  with respect to the Mortgage Loans in the related pool as determined
by the Company) of the aggregate  principal  balance of all Mortgage  Loans that
are in  foreclosure or are more than 90 days  delinquent on a contractual  basis
and REO  properties  or (y) the  aggregate  amount  that the  Company  estimates
through the normal servicing  practices of the related Servicer will be required
to be withdrawn  from the  Collateral  Fund with respect to Mortgage Loans as to
which the Purchaser has made an Election to Delay  Foreclosure or an Election to
Foreclosure,  exceeds  (z) the  then-current  principal  balance  of the Class B
Certificates,  (iii) upon any transfer by the  Purchaser of any interest  (other
than the minority interest therein,  but only if the transferee provides written
acknowledgment  to the Company of the Purchaser's  right hereunder and that such
transferee will have no rights  hereunder) in the Class B Certificates  (whether
or not such transfer is registered  under the Pooling and Servicing  Agreement),
including any such transfer in connection with a termination of the Trust Estate
or (iv) upon any breach of the terms of this Agreement by the Purchaser.

            (b)   Except  as set  forth  in  2.04(a),  this  Agreement  and  the
respective  rights,  obligations and  responsibilities  of the Purchaser and the
Company  hereunder  shall  terminate  upon the  later to occur of (i) the  final
liquidation  of the  last  Mortgage  Loan as to  which  the  Purchaser  made any
Election to Delay Foreclosure or any Election to Foreclose and the withdrawal of
all remaining  amounts in the  Collateral  Fund as provided  herein and (ii) ten
Business Days' notice.  The  Purchaser's  right to make an election  pursuant to
Section 2.02 or Section 2.03 hereof with respect to a particular  Mortgage  Loan
shall terminate if the Purchaser fails to make any deposit required  pursuant to
Section  2.02(d) or 2.03(b) or if the Purchaser  fails to make any other deposit
to the Collateral Fund pursuant to this Agreement.

                                   ARTICLE III

                       COLLATERAL FUND; SECURITY INTEREST

            Section 3.01 Collateral Fund.

            Upon receipt from the Purchaser of the initial amount required to be
deposited  in the  Collateral  Fund  pursuant to Article  II, the Company  shall
establish and maintain with Bankers Trust Company as a segregated account on its
books and records an account (the  "Collateral  Fund"),  entitled  "Norwest Bank
Minnesota,  National  Association,  as  Master  Servicer,  for  the  benefit  of
registered holders of Norwest Asset Securities Corporation Mortgage Pass-Through
Certificates, Series 1999-18. Amounts held in the Collateral Fund shall continue
to be the  property of the  Purchaser,  subject to the first  priority  security
interest  granted  hereunder  for the benefit of the  Certificateholders,  until
withdrawn from the Collateral Fund pursuant to Section 2.02 or 2.03 hereof.  The
Collateral  Fund shall be an "outside  reserve  fund"  within the meaning of the
REMIC  Provisions,  beneficially  owned by the Purchaser for federal  income tax
purposes.  All income,  gain,  deduction or loss with respect to the  Collateral
Fund shall be that of the Purchaser.  All  distributions  from the Trust Fund to
the  Collateral  Fund shall be treated as  distributed  to the  Purchaser as the
beneficial owner thereof.

            Upon the  termination of this  Agreement and the  liquidation of all
Mortgage  Loans as to  which  the  Purchaser  has  made  any  Election  to Delay
Foreclosure  or any Election to Foreclose  pursuant to Section 2.04 hereof,  the
Company shall distribute or cause to be distributed to the Purchaser all amounts
remaining  in the  Collateral  Fund  (after  adjustment  for  all  deposits  and
permitted  withdrawals  pursuant to this Agreement) together with any investment
earnings  thereon.  In the event the  Purchaser  has made any  Election to Delay
Foreclosure  or any  Election to  Foreclose,  prior to any  distribution  to the
Purchaser  of  all  amounts  remaining  in the  Collateral  Fund,  funds  in the
Collateral Fund shall be applied consistent with the terms of this Agreement.

            Section 3.02 Collateral Fund Permitted Investments.

            The Company shall, at the written direction of the Purchaser, invest
the funds in the Collateral Fund in Collateral Fund Permitted Investments.  Such
direction shall not be changed more frequently than quarterly. In the absence of
any direction,  the Company shall select such investments in accordance with the
definition of Collateral Fund Permitted Investments in its discretion.

            All  income and gain  realized  from any  investment  as well as any
interest  earned on deposits in the  Collateral  Fund (net of any losses on such
investments)  and any  payments of principal  made in respect of any  Collateral
Fund  Permitted  Investment  shall be  deposited  in the  Collateral  Fund  upon
receipt.  All costs and realized losses associated with the purchase and sale of
Collateral  Fund Permitted  Investments  shall be borne by the Purchaser and the
amount  of net  realized  losses  shall be  deposited  by the  Purchaser  in the
Collateral Fund promptly upon realization.  The Company shall  periodically (but
not more  frequently  than monthly)  distribute to the Purchaser upon request an
amount of cash,  to the extent cash is  available  therefore  in the  Collateral
Fund,  equal to the amount by which the balance of the  Collateral  Fund,  after
giving effect to all other  distributions to be made from the Collateral Fund on
such  date,  exceeds  the  Required  Collateral  Fund  Balance.  Any  amounts so
distributed  shall be  released  from the lien  and  security  interest  of this
Agreement.

            Section 3.03 Grant of Security Interest.

            The  Purchaser  hereby  grants to the Company for the benefit of the
Certificateholders under the Pooling and Servicing Agreement a security interest
in and lien on all of the  Purchaser's  right,  title and interest,  whether now
owned or hereafter acquired, in and to: (1) the Collateral Fund, (2) all amounts
deposited in the Collateral  Fund and Collateral  Fund Permitted  Investments in
which such  amounts are  invested  (and the  distributions  and proceeds of such
investments)  and (3) all cash and  non-cash  proceeds of any of the  foregoing,
including  proceeds of the  voluntary  conversion  thereof (all of the foregoing
collectively, the "Collateral").

            The Purchaser  acknowledges the lien on and the security interest in
the Collateral for the benefit of the  Certificateholders.  The Purchaser  shall
take all actions  requested  by the Company as may be  reasonably  necessary  to
perfect the security interest created under this Agreement in the Collateral and
cause it to be prior to all other  security  interests and liens,  including the
execution  and  delivery  to the  Company  for filing of  appropriate  financing
statements in accordance with applicable law. The Company shall file appropriate
continuation  statements,  or  appoint  an  agent  on its  behalf  to file  such
statements, in accordance with applicable law.

            Section 3.04 Collateral Shortfalls.

            In the event that amounts on deposit in the  Collateral  Fund at any
time are  insufficient  to cover any  withdrawals  therefrom that the Company is
then entitled to make  hereunder,  the Purchaser  shall be obligated to pay such
amounts to the Company immediately upon demand. Such obligation shall constitute
a general corporate obligation of the Purchaser. The failure to pay such amounts
within two Business Days of such demand (except for amounts to cover interest on
a Mortgage  Loan  pursuant  to Sections  2.02(d)  and 2.03 (b)),  shall cause an
immediate  termination  of the  Purchaser's  right to make any Election to Delay
Foreclosure  or Election to Foreclose and the Company's  obligations  under this
Agreement  with  respect to all  Mortgage  Loans to which  such  insufficiencies
relate, without the necessity of any further notice or demand on the part of the
Company.

                                   ARTICLE IV

                            MISCELLANEOUS PROVISIONS

            Section 4.01 Amendment.

            This  Agreement  may be amended from time to time by the Company and
the Purchaser by written agreement signed by the Company and the Purchaser.

            Section 4.02 Counterparts.

            This  Agreement  may be  executed  simultaneously  in any  number of
counterparts,  each of which counterparts shall be deemed to be an original, and
such counterparts shall constitute but one and the same instrument.

            Section 4.03 Governing Law.

            This Agreement shall be construed in accordance with the laws of the
State  of New York and the  obligations,  rights  and  remedies  of the  parties
hereunder shall be determined in accordance with such laws.

            Section 4.04 Notices.

            All demands,  notices and direction hereunder shall be in writing or
by telecopy and shall be deemed effective upon receipt to:

            (a)   in the case of the Company,

                  Norwest Bank Minnesota, National Association
                  7485 New Horizon Way
                  Frederick, MD  21703

                  Attention:        Vice President, Master Servicing
                  Phone:      301-696-7800
                  Fax:  301-815-6365

            (b)   bin the case of the Purchaser,
                  ______________________________
                  ______________________________
                  ______________________________
                  ______________________________
                  Attention:____________________

            Section 4.05 Severability of Provisions.

            If any one or more of the covenants,  agreements, provision or terms
of this Agreement shall be for any reason whatsoever, including regulatory, held
invalid, then such covenants, agreements,  provisions or terms of this Agreement
and  shall  in no way  affect  the  validity  or  enforceability  of  the  other
provisions of this Agreement.

            Section 4.06 Successors and Assigns.

            The provisions of this Agreement  shall be binding upon and inure to
the benefit of the respective  successors and assigns of the parties hereto, and
all such  provisions  shall  inure  to the  benefit  of the  Certificateholders;
provided,  however,  that the rights under this Agreement  cannot be assigned by
the Purchaser without the consent of the Company.

            Section 4.07 Article and Section Headings.

            The article  and  section  headings  herein are for  convenience  of
reference only and shall not limit or otherwise affect the meaning hereof.

            Section 4.08 Confidentiality.

            The Purchaser  agrees that all information  supplied by or on behalf
of the Company pursuant to Sections 2.01 or 2.02,  including  individual account
information,  is the  property of the Company and the  Purchaser  agrees to hold
such information confidential and not to disclose such information.

            Each party hereto agrees that neither it, nor any officer, director,
employee,  affiliate or independent  contractor acting at such party's direction
will  disclose  the terms of  Section  4.09 of this  Agreement  to any person or
entity  other  than such  party's  legal  counsel  except  pursuant  to a final,
non-appealable  order of court,  the pendency of such order the other party will
have  received  notice of at least five business days prior to the date thereof,
or pursuant to the other party's prior express written consent.

            Section 4.09 Indemnification.

            The Purchaser agrees to indemnify and hold harmless the Company, the
Seller, and each Servicer and each person who controls the Company,  the Seller,
or a Servicer and each of their respective officers,  directors,  affiliates and
agents acting at the  Company's,  the Seller's,  or a Servicer's  direction (the
"Indemnified   Parties")  against  any  and  all  losses,   claims,  damages  or
liabilities  to which  they may be  subject,  insofar  as such  losses,  claims,
damages or  liabilities  (or  actions in respect  thereof)  arise out of, or are
based upon, actions taken by, or actions not taken by, the Company,  the Seller,
or a Servicer,  or on their behalf,  in accordance  with the  provisions of this
Agreement and (i) which actions conflict with the Company's,  the Seller's, or a
Servicer's  obligations under the Pooling and Servicing Agreement or the related
Servicing Agreement, or (ii) give rise to securities law liability under federal
or state securities laws with respect to the Certificates.  The Purchaser hereby
agrees to reimburse the  Indemnified  Parties for the reasonable  legal or other
expenses incurred by them in connection with investigating or defending any such
loss, claim, damage, liability or action. The indemnification obligations of the
Purchaser  hereunder  shall  survive  the  termination  or  expiration  of  this
Agreement.



<PAGE>




            IN WITNESS WHEREOF,  the Company and the Purchaser have caused their
names  to  be  signed  hereto  by  their  respective   officers  thereunto  duly
authorized, all as of the day and year first above written.


                                       Norwest Bank Minnesota, National
                                          Association



                                       By:
                                          ------------------------------------
                                       Name:
                                            ----------------------------------
                                       Title:
                                             ---------------------------------






                                       By:
                                          ------------------------------------
                                       Name:
                                            ----------------------------------
                                       Title:
                                             ---------------------------------
<PAGE>
                                   EXHIBIT A-1
                     [FORM OF FACE OF CLASS A-1 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-1

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                     four-family residential mortgage loans,
                    which may include loans secured by shares
                          issued by cooperative housing
                              corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                          Cut-Off Date:  June 1, 1999

CUSIP No.:                                First Distribution Date: July 26, 1999

Percentage Interest evidenced by this     Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029


            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-1  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-1 Certificates required to be distributed to
Holders of the Class A-1  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-1 Certificates  applicable to each  Distribution Date will be 6.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-1 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer

<PAGE>





                                   EXHIBIT A-2
                     [FORM OF FACE OF CLASS A-2 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-2

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination: $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029


            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-2  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-2 Certificates required to be distributed to
Holders of the Class A-2  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-2 Certificates  applicable to each  Distribution Date will be 6.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-2 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 98.24767%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  1.81900000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  6.37%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.01866117%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
  Trust Administrator



By
   ------------------------
   Authorized Officer





<PAGE>





                                   EXHIBIT A-3
                     [FORM OF FACE OF CLASS A-3 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-3

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                        four-family residential mortgage
                     loans, which may include loans secured
                     by shares issued by cooperative housing
                             corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029


            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-3  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-3 Certificates required to be distributed to
Holders of the Class A-3  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-3 Certificates  applicable to each  Distribution Date will be 6.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-3 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 94.49767%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  5.56900000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  6.90%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.03707965%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer



<PAGE>





                                   EXHIBIT A-4
                     [FORM OF FACE OF CLASS A-4 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-4

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                  four-family residential mortgage loans, which
                  may include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029


            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-4  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-4 Certificates required to be distributed to
Holders of the Class A-4  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-4 Certificates  applicable to each  Distribution Date will be 6.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-4 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 97.59167%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  2.47500000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  6.90%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.05274921%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ---------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   -----------------------
   Authorized Officer



<PAGE>





                                   EXHIBIT A-5
                     [FORM OF FACE OF CLASS A-5 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-5

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                  four-family residential mortgage loans, which
                 may include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            UNTIL THE APPLICABLE  ACCRETION  TERMINATION DATE, THE INTEREST THAT
ACCRUES  ON THE  PRINCIPAL  BALANCE  OF THIS  CERTIFICATE  WILL NOT BE  PAYABLE.
BECAUSE  SUCH  UNPAID  INTEREST  IS  ADDED  TO THE  PRINCIPAL  BALANCE  OF  THIS
CERTIFICATE AND BECAUSE DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE WILL
BE MADE IN THE MANNER  DESCRIBED  IN THE  AGREEMENT  (AS  DEFINED  HEREIN),  THE
OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE  AT ANY TIME MAY BE MORE OR
LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.


Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>





            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-5  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-5 Certificates required to be distributed to
Holders of the Class A-5  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-5 Certificates  applicable to each  Distribution Date will be 6.500% per
annum.  Prior to the applicable  Accretion  Termination Date, no distribution of
interest on this  Certificate  will be made.  Prior to the applicable  Accretion
Termination  Date,   interest  otherwise  available  for  distribution  on  this
Certificate will be added to the Principal Balance of the Class A-5 Certificates
on each  Distribution  Date.  The  amount  of  interest  which  accrues  on this
Certificate  in any month  will be  subject  to  reduction  with  respect to any
Non-Supported  Interest  Shortfall and the interest  portion of certain Realized
Losses allocated to the Class A-5 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
90.00556%, including accrued interest, and a stated redemption price at maturity
equal to the sum of its initial principal balance and all interest distributions
hereon (whether current or accrued),  and is issued with original issue discount
("OID") for federal income tax purposes.  Assuming that this Certificate pays in
accordance  with  projected cash flows  reflecting the prepayment  assumption of
275% SPA (as  defined in the  Prospectus  Supplement  dated  June 24,  1999 with
respect  to the  offering  of the Class A  Certificates  (except  the Class A-PO
Certificates),  Class B-1, Class B-2 and Class B-3  Certificates)  used to price
this Certificate: (i) the amount of OID as a percentage of the initial principal
balance of this Certificate is approximately 14.37012906%; (ii) the annual yield
to maturity of this Certificate,  compounded monthly,  is approximately  23.20%;
and (iii) the amount of OID  allocable to the short first  accrual  period (June
29, 1999 to July 25, 1999) as a percentage of the initial  principal  balance of
this   Certificate,   calculated  using  the  exact  method,   is  approximately
1.50630400%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>




                                   EXHIBIT A-6
                     [FORM OF FACE OF CLASS A-6 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-6

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029


<PAGE>



            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-6  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-6 Certificates required to be distributed to
Holders of the Class A-6  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-6 Certificates  applicable to each  Distribution Date will be a floating
rate  of  interest  determined  as  provided  herein  and  as  specified  in the
Agreement.  The  pass-through  rate applicable with respect to the  Distribution
Date in July 1999 will be 5.750% per  annum.  Thereafter,  with  respect to each
Distribution  Date,  the  pass-through  rate will be a per annum  rate  equal to
0.850%  plus  LIBOR  as  determined  on the  second  business  day  prior to the
beginning  of the month  preceding  the month in which  such  Distribution  Date
occurs,  subject to a minimum rate of 0.850% and a maximum  rate of 9.000%.  The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated  to the Class A-6
Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>




                                   EXHIBIT A-7
                     [FORM OF FACE OF CLASS A-7 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-7

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>



            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-7  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-7 Certificates required to be distributed to
Holders of the Class A-7  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-7 Certificates  applicable to each  Distribution Date will be a floating
rate  of  interest  determined  as  provided  herein  and  as  specified  in the
Agreement.  The  pass-through  rate applicable with respect to the  Distribution
Date in July 1999 will be 8.450% per  annum.  Thereafter,  with  respect to each
Distribution  Date, the pass-through  rate will be a per annum rate equal to (i)
21.190%  minus (ii) the product of 2.600 and LIBOR,  as determined on the second
business day prior to the  beginning of the month  preceding  the month in which
such Distribution Date occurs, subject to a minimum rate of 0.000% and a maximum
rate of 21.190%. The amount of interest which accrues on this Certificate in any
month will be subject to reduction  with respect to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-7 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 84.81322%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
initial  pass-through  rate  hereon),  is issued with  original  issue  discount
("OID") for federal income tax purposes. Assuming (a) that this Certificate pays
in accordance with projected cash flows reflecting the prepayment  assumption of
275% SPA (as  defined in the  Prospectus  Supplement  dated  June 24,  1999 with
respect  to the  offering  of the Class A  Certificates  (except  the Class A-PO
Certificates),  Class B-1, Class B-2 and Class B-3  Certificates)  used to price
this  Certificate  and (b) that the  interest  rate at  which  distributions  of
interest on this Certificate  actually will be made will be determined as though
the pass-through rate on this Certificate  applicable to the first  Distribution
Date will not change  thereafter:  (i) the amount of OID as a percentage  of the
initial  principal  balance of this Certificate is  approximately  15.28066667%;
(ii) the annual yield to maturity of this Certificate,  compounded  monthly,  is
approximately  10.45%;  and (iii) the amount of OID allocable to the short first
accrual  period (June 29, 1999 to July 25, 1999) as a percentage  of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.02916693%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>




                                   EXHIBIT A-8
                     [FORM OF FACE OF CLASS A-8 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-8

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            UNTIL THE APPLICABLE  ACCRETION  TERMINATION DATE, THE INTEREST THAT
ACCRUES  ON THE  PRINCIPAL  BALANCE  OF THIS  CERTIFICATE  WILL NOT BE  PAYABLE.
BECAUSE  SUCH  UNPAID  INTEREST  IS  ADDED  TO THE  PRINCIPAL  BALANCE  OF  THIS
CERTIFICATE AND BECAUSE DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE WILL
BE MADE IN THE MANNER  DESCRIBED  IN THE  AGREEMENT  (AS  DEFINED  HEREIN),  THE
OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE  AT ANY TIME MAY BE MORE OR
LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.


Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>



            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-8  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-8 Certificates required to be distributed to
Holders of the Class A-8  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement. For the purposes of determining
distributions of interest and in reduction of Principal  Balance,  the Class A-8
Certificates  consist of five components  (each, a "Component" and individually,
the  "Class  A-8A IO  Component",  "Class  A-8B IO  Component",  "Class  A-8C IO
Component",  "Class A-8D IO Component"  and the "Class A-8 Accrual  Component").
The amount of interest which accrues on the Class A-8  Certificates in any month
will equal the sum of the interest  which  accrues on the Class A-8  Components.
The component  rate (the  "Component  Rate") on each of the Class A-8 Components
(other  than the Class A-8  Accrual  Componet)  will be 0.500% per annum and the
Component  Rate on the Class A-8  Accural  Component  will be 6.500%  per annum.
Interest  with  respect to each  Component  will accrue  during each month in an
amount  equal  to the  product  of (i)  1/12th  of the  Component  Rate for such
Component and (ii) the  outstanding  Principal  Balance in the case of the Class
A-8 Accrual Component or the applicable  outstanding notional amount in the case
of the Class A-8A IO, Class A-8B IO, Class A-8C IO and Class A-8D IO Components.
Prior to the applicable Accretion  Termination Date, the interest accrued on the
Class  A-8  Accrual  Component  will  not be  distributed  as  interest  on this
Certificate. Prior to the applicable Accretion Termination Date, the interest on
the Class A-8 Accrual  Component  otherwise  available for  distribution on this
Certificate will be added to the Component  Principal  Balance of such Component
on each  Distribution  Date.  The  amount  of  interest  which  accrues  on this
Certificate  in any month  will be  subject  to  reduction  with  respect to any
Non-Supported  Interest  Shortfall and the interest  portion of certain Realized
Losses allocated to the Class A-8 Certificates with respect to their Components.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above, the final  distribution in reduction on this
Certificate  will be made after due notice of the pendency of such  distribution
and only upon  presentation  and surrender of this  Certificate at the office or
agency  specified by the Trust  Administrator  for that purpose in the notice of
final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
100.24610%,  including  accrued  interest,  and a  stated  redemption  price  at
maturity  equal to the sum of its initial  principal  balance  and all  interest
distributions  hereon (whether current or accrued),  and is issued with original
issue  discount  ("OID") for federal  income tax  purposes.  Assuming  that this
Certificate  pays  in  accordance  with  projected  cash  flows  reflecting  the
prepayment assumption of 275% SPA (as defined in the Prospectus Supplement dated
June 24, 1999 with respect to the offering of the Class A  Certificates  (except
the Class A-PO  Certificates),  Class B-1, Class B-2 and Class B-3 Certificates)
used to price this  Certificate:  (i) the amount of OID as a  percentage  of the
initial  principal  balance of this Certificate is  approximately  79.20304839%;
(ii) the annual yield to maturity of this Certificate,  compounded  monthly,  is
approximately  7.67%;  and (iii) the amount of OID  allocable to the short first
accrual  period (June 29, 1999 to July 25, 1999) as a percentage  of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.55502385%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>




                                   EXHIBIT A-9
                     [FORM OF FACE OF CLASS A-9 CERTIFICATE]

            AFTER THE CROSS-OVER DATE, THE PRINCIPAL PORTION OF REALIZED LOSSES,
OTHER THAN EXCESS  LOSSES,  THAT WOULD  OTHERWISE  BE ALLOCATED TO THE CLASS A-8
CERTIFICATES  WILL BE BORNE BY THE CLASS A-9  CERTIFICATES  AS  DESCRIBED IN THE
POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>






                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-9

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029




<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-9  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-9 Certificates required to be distributed to
Holders of the Class A-9  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-9 Certificates  applicable to each  Distribution Date will be 6.500% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-9 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class A-9  Certificate  will be made  unless  the
Holder  hereof  desiring to make any such  transfer  shall  deliver to the Trust
Administrator  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 96.20856%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  3.86366667%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.04%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.01932856%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>





                                  EXHIBIT A-10
                    [FORM OF FACE OF CLASS A-10 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-10

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                         Cut-Off Date:  June 1, 1999

CUSIP No.:                              First Distribution Date: July 26, 1999

Percentage Interest evidenced           Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029


<PAGE>



            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-10  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-10 Certificates  required to be distributed
to Holders of the Class A-10 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-10 Certificates  applicable to each Distribution Date will be 6.750% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-10 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 98.99400%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  1.08100000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.11%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.02073970%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                          ---------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-11
                    [FORM OF FACE OF CLASS A-11 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-11

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            UNTIL THE APPLICABLE  ACCRETION  TERMINATION DATE, THE INTEREST THAT
ACCRUES  ON THE  PRINCIPAL  BALANCE  OF THIS  CERTIFICATE  WILL NOT BE  PAYABLE.
BECAUSE  SUCH  UNPAID  INTEREST  IS  ADDED  TO THE  PRINCIPAL  BALANCE  OF  THIS
CERTIFICATE AND BECAUSE DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE WILL
BE MADE IN THE MANNER  DESCRIBED  IN THE  AGREEMENT  (AS  DEFINED  HEREIN),  THE
OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE  AT ANY TIME MAY BE MORE OR
LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>





            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-11  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-11 Certificates  required to be distributed
to Holders of the Class A-11 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-11 Certificates  applicable to each Distribution Date will be 6.750% per
annum.  Prior to the applicable  Accretion  Termination Date, no distribution of
interest on this  Certificate  will be made.  Prior to the applicable  Accretion
Termination  Date,   interest  otherwise  available  for  distribution  on  this
Certificate  will  be  added  to  the  Principal   Balance  of  the  Class  A-11
Certificates on each Distribution  Date. The amount of interest which accrues on
this  Certificate  in any month will be subject to reduction with respect to any
Non-Supported  Interest  Shortfall and the interest  portion of certain Realized
Losses allocated to the Class A-11 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
90.88400%, including accrued interest, and a stated redemption price at maturity
equal to the sum of its initial principal balance and all interest distributions
hereon (whether current or accrued),  and is issued with original issue discount
("OID") for federal income tax purposes.  Assuming that this Certificate pays in
accordance  with  projected cash flows  reflecting the prepayment  assumption of
275% SPA (as  defined in the  Prospectus  Supplement  dated  June 24,  1999 with
respect  to the  offering  of the Class A  Certificates  (except  the Class A-PO
Certificates),  Class B-1, Class B-2 and Class B-3  Certificates)  used to price
this Certificate: (i) the amount of OID as a percentage of the initial principal
balance of this Certificate is approximately 81.55830867%; (ii) the annual yield
to maturity of this Certificate, compounded monthly, is approximately 7.95%; and
(iii) the amount of OID  allocable to the short first  accrual  period (June 29,
1999 to July 25, 1999) as a percentage of the initial  principal balance of this
Certificate, calculated using the exact method, is approximately 0.52155619%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator

By
- ------------------------
Authorized Officer

<PAGE>





                                  EXHIBIT A-12
                    [FORM OF FACE OF CLASS A-12 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-12

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR (EXCEPT AS PROVIDED HEREIN) PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029


<PAGE>



            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-12  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage  Interest evidenced by this Certificate and the amount
of  interest to be  distributed  to Holders of Class A-12  Certificates  on such
Distribution Date as specified in the Agreement. Distributions of principal will
be made to the Holders of the Class A-12  Certificates as described below and in
the  Agreement.  Prior to the  Distribution  Date,  if any,  on which  Financial
Security  fails to make a payment  with  respect  to a Class  A-12  Distribution
Deficiency,  distributions  in  reduction  of  the  Principal  Balance  of  this
Certificate  (including  amounts paid in respect of such losses under the Policy
as defined  below) will be made only in lots equal to $1,000  initial  principal
balance  and in  accordance  with the  priorities  and  procedures  set forth in
Section 4.07 of the Agreement (i) at the request of Deceased Holders (ii) at the
request  of  Living  Holders  and  (iii)  by  random  lot.  On  and  after  such
Distribution Date,  distributions in reduction of principal balance will be made
as  provided in the  Agreement.  Distributions  in  reduction  of the  Principal
Balance of certain Classes of Class A Certificates may not commence on the first
Distribution Date specified above.  Distributions of principal will be allocated
among the Classes of Class A Certificates  in accordance  with the provisions of
the Agreement.  The pass-through rate on the Class A-12 Certificates  applicable
to each Distribution Date will be 7.000% per annum. The amount of interest which
accrues on this  Certificate  in any month will be  subject  to  reduction  with
respect to any  Non-Supported  Interest  Shortfall  and the interest  portion of
certain Realized Losses allocated to the Class A-12  Certificates,  as described
in the Agreement.  Any Non-Supported  Interest Shortfall  allocated to the Class
A-12  Certificates  will be covered,  to the extent  available,  by funds in the
Reserve  Fund,  to the extent  described in the Agreement and then by the Policy
described below.

            The Class A-12  Certificates  will be entitled to the  benefits of a
Financial  Guaranty Insurance Policy issued by Financial Security Assurance Inc.
(the "Policy") to the extent described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>





                                  EXHIBIT A-13
                    [FORM OF FACE OF CLASS A-13 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-13

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                          Cut-Off Date:  June 1, 1999

CUSIP No.:                                First Distribution Date: July 26, 1999

Percentage Interest evidenced by this     Denomination:  $
Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>





            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-13  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-13 Certificates  required to be distributed
to Holders of the Class A-13 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance  with the  provisions of the Agreement.  The Class A-13  Certificates
will not be entitled to distributions in respect of interest.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
37.79700%  and a stated  redemption  price  at  maturity  equal  to its  initial
principal  balance,  and is issued  with  original  issue  discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 62.20300000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  8.05%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.21974034%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator
By
   ------------------------
Authorized Officer

<PAGE>





                                  EXHIBIT A-14
                    [FORM OF FACE OF CLASS A-14 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-14

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date: July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029

<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-14  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-14 Certificates  required to be distributed
to Holders of the Class A-14 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-14 Certificates  applicable to each Distribution Date will be a floating
rate  of  interest  determined  as  provided  herein  and  as  specified  in the
Agreement.  The  pass-through  rate applicable with respect to the  Distribution
Date in July 1999 will be 5.918% per  annum.  Thereafter,  with  respect to each
Distribution  Date,  the  pass-through  rate will be a per annum  rate  equal to
1.000%  plus  LIBOR  as  determined  on the  second  business  day  prior to the
beginning  of the month  preceding  the month in which  such  Distribution  Date
occurs,  subject to a minimum rate of 1.000% and a maximum  rate of 8.500%.  The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated to the Class A-14
Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                          ---------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-15
                    [FORM OF FACE OF CLASS A-15 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-15

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date: July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date: July 25, 2029



<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-15  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust  Administrator"),  and the United States Trust Company
of New York, as trustee (the  "Trustee"),  a summary of certain of the pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-15 Certificates  required to be distributed
to Holders of the Class A-15 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-15 Certificates  applicable to each Distribution Date will be a floating
rate  of  interest  determined  as  provided  herein  and  as  specified  in the
Agreement.  The  pass-through  rate applicable with respect to the  Distribution
Date in July 1999 will be 9.9591430% per annum. Thereafter, with respect to each
Distribution  Date, the pass-through  rate will be a per annum rate equal to (i)
28.9285714286%  minus (ii) the product of 3.8571428571  and LIBOR, as determined
on the second  business day prior to the  beginning of the month  preceding  the
month in which such  Distribution  Date  occurs,  subject  to a minimum  rate of
0.000%  and a maximum  rate of  28.9285714286%.  The  amount of  interest  which
accrues on this  Certificate  in any month will be  subject  to  reduction  with
respect to any  Non-Supported  Interest  Shortfall  and the interest  portion of
certain Realized Losses allocated to the Class A-15  Certificates,  as described
in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 90.27460%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
initial  pass-through  rate  hereon),  is issued with  original  issue  discount
("OID") for federal income tax purposes. Assuming (a) that this Certificate pays
in accordance with projected cash flows reflecting the prepayment  assumption of
275% SPA (as  defined in the  Prospectus  Supplement  dated  June 24,  1999 with
respect  to the  offering  of the Class A  Certificates  (except  the Class A-PO
Certificates),  Class B-1, Class B-2 and Class B-3  Certificates)  used to price
this  Certificate  and (b) that the  interest  rate at  which  distributions  of
interest on this Certificate  actually will be made will be determined as though
the pass-through rate on this Certificate  applicable to the first  Distribution
Date will not change  thereafter:  (i) the amount of OID as a percentage  of the
initial principal balance of this Certificate is approximately 9.83605713%; (ii)
the  annual  yield to  maturity  of this  Certificate,  compounded  monthly,  is
approximately  11.55%;  and (iii) the amount of OID allocable to the short first
accrual  period (June 29, 1999 to July 25, 1999) as a percentage  of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.03312265%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                         ----------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-16
                    [FORM OF FACE OF CLASS A-16 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-16

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date: July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029


<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-16  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust  Administrator"),  and the United States Trust Company
of New York, as trustee (the  "Trustee"),  a summary of certain of the pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-16 Certificates  required to be distributed
to Holders of the Class A-16 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-16 Certificates  applicable to each Distribution Date will be 6.625% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-16 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                         ----------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   -----------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-17
                    [FORM OF FACE OF CLASS A-17 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-17

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date: June 1, 1999

CUSIP No.:                               First Distribution Date: July 26, 1999

Percentage Interest evidenced            Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:
July 25, 2029


<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-17  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-17 Certificates  required to be distributed
to Holders of the Class A-17 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-17 Certificates  applicable to each Distribution Date will be 6.750% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-17 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                          ---------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-18
                    [FORM OF FACE OF CLASS A-18 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-18

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029

<PAGE>



            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-18  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-18 Certificates  required to be distributed
to Holders of the Class A-18 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-18 Certificates  applicable to each Distribution Date will be 6.750% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-18 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                          ---------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-19
                    [FORM OF FACE OF CLASS A-19 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
   TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
     THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
    REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
   CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
    BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                          CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-19

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            UNTIL THE APPLICABLE  ACCRETION  TERMINATION DATE, THE INTEREST THAT
ACCRUES  ON THE  PRINCIPAL  BALANCE  OF THIS  CERTIFICATE  WILL NOT BE  PAYABLE.
BECAUSE  SUCH  UNPAID  INTEREST  IS  ADDED  TO THE  PRINCIPAL  BALANCE  OF  THIS
CERTIFICATE AND BECAUSE DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE WILL
BE MADE IN THE MANNER  DESCRIBED  IN THE  AGREEMENT  (AS  DEFINED  HEREIN),  THE
OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE  AT ANY TIME MAY BE MORE OR
LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-19  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-19 Certificates  required to be distributed
to Holders of the Class A-19 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-19 Certificates  applicable to each Distribution Date will be 6.750% per
annum.  Prior to the applicable  Accretion  Termination Date, no distribution of
interest on this  Certificate  will be made.  Prior to the applicable  Accretion
Termination  Date,   interest  otherwise  available  for  distribution  on  this
Certificate  will  be  added  to  the  Principal   Balance  of  the  Class  A-19
Certificates on each Distribution  Date. The amount of interest which accrues on
this  Certificate  in any month will be subject to reduction with respect to any
Non-Supported  Interest  Shortfall and the interest  portion of certain Realized
Losses allocated to the Class A-19 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
92.94700%, including accrued interest, and a stated redemption price at maturity
equal to the sum of its initial principal balance and all interest distributions
hereon (whether current or accrued),  and is issued with original issue discount
("OID") for federal income tax purposes.  Assuming that this Certificate pays in
accordance  with  projected cash flows  reflecting the prepayment  assumption of
275% SPA (as  defined in the  Prospectus  Supplement  dated  June 24,  1999 with
respect  to the  offering  of the Class A  Certificates  (except  the Class A-PO
Certificates),  Class B-1, Class B-2 and Class B-3  Certificates)  used to price
this Certificate: (i) the amount of OID as a percentage of the initial principal
balance of this  Certificate  is  approximately  129.82263455%;  (ii) the annual
yield to maturity of this  Certificate,  compounded  monthly,  is  approximately
7.42%;  and (iii) the amount of OID allocable to the short first accrual  period
(June  29,  1999 to July 25,  1999) as a  percentage  of the  initial  principal
balance of this Certificate, calculated using the exact method, is approximately
0.49782103%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                         ----------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-20
                    [FORM OF FACE OF CLASS A-20 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-20

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-20  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-20 Certificates  required to be distributed
to Holders of the Class A-20 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement. For the purposes of determining
distributions  in reduction of Principal  Balance,  the Class A-20  Certificates
consist of two components  (each,  a "Component"  and  individually,  the "Class
A-20A  Component" and the "Class A-20B  Component").  Neither  Component will be
entitled to distributions in respect of interest.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
67.75000%  and a stated  redemption  price  at  maturity  equal  to its  initial
principal  balance,  and is issued  with  original  issue  discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 32.25000000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.50%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.36663001%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                          ---------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-21
                    [FORM OF FACE OF CLASS A-21 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-21

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            THE  NOTIONAL  AMOUNT OF THIS  CERTIFICATE  WILL BE REDUCED IN THE
MANNER  DESCRIBED IN THE POOLING AND  SERVICING  AGREEMENT.  ACCORDINGLY,  THE
OUTSTANDING  NOTIONAL AMOUNT OF THIS  CERTIFICATE AT ANY TIME MAY BE LESS THAN
THE INITIAL NOTIONAL AMOUNT REPRESENTED HEREBY.


Certificate No.                           Cut-Off Date:  June 1, 1999

CUSIP No.:  ______                        First Distribution Date: July 26, 1999

Percentage Interest evidenced             Denomination:   $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-21  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-21 Certificates  required to be distributed
to Holders of the Class A-21 Certificates on such Distribution  Date, subject to
adjustment  in certain  events as  specified  in the  Agreement.  The Class A-21
Certificates are not entitled to distributions in respect of principal. Interest
will accrue on the Class A-21  Certificates each month in an amount equal to the
product of (i) 1/12th of 6.500%  and (ii) the Class A-21  Notional  Amount as of
the related  Distribution  Date.  The amount of interest  which  accrues on this
Certificate  in any month  will be  subject  to  reduction  with  respect to any
Non-Supported  Interest  Shortfall and the interest  portion of certain Realized
Losses allocated to the Class A-21 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution on this Certificate
will be made after due notice of the pendency of such distribution and only upon
presentation and surrender of this Certificate at the office or agency specified
by the Trust Administrator for that purpose in the notice of final distribution.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
24.89656% of the initial Class A-21 Notional Amount, including accrued interest,
and a stated  redemption  price at maturity equal to all interest  distributions
hereon,  and is issued with original issue  discount  ("OID") for federal income
tax purposes.  Assuming that this  Certificate pays in accordance with projected
cash flows  reflecting the prepayment  assumption of 275% SPA (as defined in the
Prospectus  Supplement  dated June 24, 1999 with  respect to the offering of the
Class A (except the Class A-PO Certificates), Class B-1, Class B-2 and Class B-3
Certificates)  used  to  price  this  Certificate:  (i) the  amount  of OID as a
percentage  of  the  initial  Class  A-21  Notional   Amount  is   approximately
7.34980279%;  (ii) the annual yield to maturity of this Certificate,  compounded
monthly,  is  approximately  9.30%; and (iii) the amount of OID allocable to the
short first  accrual  period (June 29, 1999 to July 25, 1999) as a percentage of
the initial Class A-21 Notional Amount,  calculated  using the exact method,  is
approximately 0.16722382%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                         ----------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-22
                    [FORM OF FACE OF CLASS A-22 CERTIFICATE]

            AFTER THE CROSS-OVER DATE, THE PRINCIPAL PORTION OF REALIZED LOSSES,
OTHER THAN EXCESS  LOSSES,  THAT WOULD  OTHERWISE BE ALLOCATED TO THE CLASS A-19
CERTIFICATES  WILL BE BORNE BY THE CLASS A-22  CERTIFICATES  AS DESCRIBED IN THE
POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                                  EXHIBIT A-22
                    [FORM OF FACE OF CLASS A-22 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-22

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                          Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced            Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:
July 25, 2029



<PAGE>




            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-22  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-22 Certificates  required to be distributed
to Holders of the Class A-22 Certificates on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-22 Certificates  applicable to each Distribution Date will be 6.500% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-22 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class A-22  Certificate  will be made  unless the
Holder  hereof  desiring to make any such  transfer  shall  deliver to the Trust
Administrator  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 96.69356%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  3.37866667%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  6.97%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.01697769%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>



            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.



Dated:


                                       First Union National Bank,
                                            Trust Administrator


                                       By
                                         ----------------------------
                                            Authorized Officer



Countersigned:


First Union National Bank,
     Trust Administrator


By
   ------------------------
      Authorized Officer



<PAGE>





                                  EXHIBIT A-PO
                    [FORM OF FACE OF CLASS A-PO CERTIFICATE]

            THIS  CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED  UNDER THE
SECURITIES ACT OF 1933, AS AMENDED,  OR THE SECURITIES LAWS OF ANY STATE AND MAY
NOT BE RESOLD OR  TRANSFERRED  UNLESS IT IS REGISTERED  PURSUANT TO SUCH ACT AND
LAWS  OR  IS  SOLD  OR  TRANSFERRED  IN  TRANSACTIONS   WHICH  ARE  EXEMPT  FROM
REGISTRATION UNDER SUCH ACT AND UNDER APPLICABLE STATE LAW AND IS TRANSFERRED IN
ACCORDANCE  WITH THE  PROVISIONS  OF SECTION  5.02 OF THE POOLING AND  SERVICING
AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN  OR  OTHER  RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974, AS AMENDED ("ERISA") OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986,
AS AMENDED (THE "CODE"),  OR A GOVERNMENTAL PLAN, AS DEFINED IN SECTION 3(32) OF
ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL LAW  WHICH  IS, TO A  MATERIAL
EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE (COLLECTIVELY,
A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN.



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18 CLASS A-PO

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                          Cut-Off Date:  June 1, 1999

CUSIP No.:                                First Distribution Date: July 26, 1999

Percentage Interest evidenced by this     Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-PO  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator  (the "Trust  Administrator"),  and United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-PO Certificates  required to be distributed
to Holders of the Class A-PO Certificates on such Distribution  Date, subject to
adjustment  in certain  events as  specified  in the  Agreement.  The Class A-PO
Certificates will not be entitled to distributions in respect of interest.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class A-PO  Certificate  will be made unless such
transfer is exempt from the  registration  requirements of the Securities Act of
1933,  as  amended,  and  any  applicable  state  securities  laws or is made in
accordance  with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof,  (i) the transferee will be required to execute
an  investment  letter in the form  described in the  Agreement and (ii) if such
transfer  is to be made  within  three  years  from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any  affiliate  thereof  was  a  Holder  of  the  Certificates  proposed  to  be
transferred,  and unless  such  transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended,  the Trust  Administrator  or the Seller may
require  the Holder to deliver an opinion of counsel  acceptable  to and in form
and substance  satisfactory to the Trust  Administrator and the Seller that such
transfer is exempt (describing the applicable  exemption and the basis therefor)
from  or is  being  made  pursuant  to  the  registration  requirements  of  the
Securities Act of 1933, as amended,  and of any applicable statute of any state.
The Holder hereof desiring to effect such transfer shall,  and does hereby agree
to,  indemnify  the Trustee,  the Trust  Administrator,  the Seller,  the Master
Servicer,  and any Paying  Agent  acting on behalf of the  Trustee  against  any
liability  that may  result if the  transfer  is not so exempt or is not made in
accordance  with  such  Federal  and state  laws.  In  connection  with any such
transfer, the Trust Administrator will also require (i) a representation letter,
in the form as described in the Agreement,  stating that the transferee is not a
Plan and is not  acting on  behalf  of a Plan or using  the  assets of a Plan to
effect such  purchase or (ii) if such  transferee  is a Plan,  (a) an opinion of
counsel  acceptable  to and in form  and  substance  satisfactory  to the  Trust
Administrator  and the Seller with respect to certain matters and (b) such other
documentation as the Seller or the Master Servicer may require,  as described in
the Agreement.

            This  Certificate  is issued on June 29, 1999,  at an issue price of
67.25000%  and a stated  redemption  price  at  maturity  equal  to its  initial
principal  balance,  and is issued  with  original  issue  discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 32.75000000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.51%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.36437245%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                            Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
    Authorized Officer



<PAGE>






                                   EXHIBIT A-R
                     [Form of Face of Class A-R Certificate]

            FOR  U.S.  FEDERAL  INCOME  TAX  PURPOSES,  THIS  CERTIFICATE  IS  A
"RESIDUAL  INTEREST" IN A "REAL  ESTATE  MORTGAGE  INVESTMENT  CONDUIT" AS THOSE
TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G(a)(2) AND 860D OF THE INTERNAL
REVENUE CODE OF 1986, AS AMENDED (THE "CODE"). A TRANSFEREE OF THIS CERTIFICATE,
BY ACCEPTANCE  HEREOF,  IS DEEMED TO HAVE ACCEPTED THIS  CERTIFICATE  SUBJECT TO
CERTAIN RESTRICTIONS ON TRANSFERABILITY,  AS SET FORTH IN SECTION 5.02(d) OF THE
POOLING AND SERVICING  AGREEMENT,  AND SHALL BE REQUIRED TO FURNISH AN AFFIDAVIT
TO THE TRANSFEROR AND THE TRUST  ADMINISTRATOR  TO THE EFFECT THAT,  AMONG OTHER
THINGS, IT IS NOT A DISQUALIFIED  ORGANIZATION,  AS SUCH TERM IS DEFINED IN CODE
SECTION  860E(e)(5),  AN AGENT (INCLUDING A BROKER,  NOMINEE OR OTHER MIDDLEMAN)
FOR A DISQUALIFIED ORGANIZATION OR A NON-PERMITTED FOREIGN HOLDER, AS DEFINED IN
SECTION  5.02(d) OF THE POOLING AND  SERVICING  AGREEMENT  AND TO HAVE AGREED TO
SUCH  AMENDMENTS  TO THE POOLING AND  SERVICING  AGREEMENT AS MAY BE REQUIRED TO
FURTHER EFFECTUATE THE RESTRICTIONS ON TRANSFERS TO DISQUALIFIED  ORGANIZATIONS,
AGENTS THEREOF OR NON-PERMITTED FOREIGN HOLDERS.

            THE HOLDER OF THIS CLASS A-R CERTIFICATE,  BY ACCEPTANCE  HEREOF, IS
DEEMED TO HAVE AGREED TO THE  DESIGNATION OF THE MASTER SERVICER AS ITS AGENT TO
ACT AS "TAX MATTERS PERSON" OF THE UPPER-TIER  REMIC TO PERFORM THE FUNCTIONS OF
A "TAX MATTERS PARTNER" FOR PURPOSES OF SUBCHAPTER C OF CHAPTER 63 OF SUBTITLE F
OF THE CODE, OR, IF SO REQUESTED BY THE MASTER  SERVICER,  TO ACT AS TAX MATTERS
PERSON OF THE UPPER-TIER REMIC.

            THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR  TRANSFERRED  TO ANY
PERSON WHICH IS AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT ARRANGEMENT SUBJECT
TO TITLE I OF THE EMPLOYEE  RETIREMENT  INCOME  SECURITY ACT OF 1974, AS AMENDED
("ERISA"),  OR SECTION 4975 OF THE CODE OR A  GOVERNMENTAL  PLAN,  AS DEFINED IN
SECTION 3(32) OF ERISA SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A
MATERIAL  EXTENT,  SIMILAR  TO THE  FOREGOING  PROVISIONS  OF  ERISA OR THE CODE
(COLLECTIVELY,  A "PLAN"),  OR ANY PERSON  ACTING ON BEHALF OF OR INVESTING  THE
ASSETS OF A PLAN.



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS A-R

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $100.00
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS  CERTIFIES  THAT  __________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions to the Holder of the Class A-R Certificate with respect to a Trust
Estate consisting of a pool of fixed interest rate,  conventional,  monthly pay,
fully amortizing,  first lien, one- to four-family  residential  mortgage loans,
other than the Fixed Retained Yield, if any, with respect thereto, and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of June 29, 1999 (the  "Agreement")  among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First Union  National  Bank, as trust  administrator  (the
"Trust  Administrator")  and the United  States  Trust  Company of New York,  as
trustee (the  "Trustee"),  a summary of certain of the  pertinent  provisions of
which  is  set  forth  hereinafter.  To  the  extent  not  defined  herein,  the
capitalized  terms used herein have the  meanings  ascribed to such terms in the
Agreement.  This  Certificate  is issued  under  and is  subject  to the  terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-R Certificate  required to be distributed to
the Holder of the Class A-R Certificate on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-R Certificate  applicable to each  Distribution  Date will be 6.500% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-R Certificate, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as  such  name  and  address   shall   appear  on  the   Certificate   Register.
Notwithstanding  the above,  the final  distribution on this Certificate will be
made  after  due  notice  of the  pendency  of such  distribution  and only upon
presentation and surrender of this Certificate at the office or agency specified
by the Trust Administrator for that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer



<PAGE>






                                  EXHIBIT A-LR
                    [Form of Face of Class A-LR Certificate]

            FOR  U.S.  FEDERAL  INCOME  TAX  PURPOSES,  THIS  CERTIFICATE  IS  A
"RESIDUAL  INTEREST" IN A "REAL  ESTATE  MORTGAGE  INVESTMENT  CONDUIT" AS THOSE
TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G(a)(2) AND 860D OF THE INTERNAL
REVENUE CODE OF 1986, AS AMENDED (THE "CODE"). A TRANSFEREE OF THIS CERTIFICATE,
BY ACCEPTANCE  HEREOF,  IS DEEMED TO HAVE ACCEPTED THIS  CERTIFICATE  SUBJECT TO
CERTAIN RESTRICTIONS ON TRANSFERABILITY,  AS SET FORTH IN SECTION 5.02(d) OF THE
POOLING AND SERVICING  AGREEMENT,  AND SHALL BE REQUIRED TO FURNISH AN AFFIDAVIT
TO THE TRANSFEROR AND THE TRUST  ADMINISTRATOR  TO THE EFFECT THAT,  AMONG OTHER
THINGS, IT IS NOT A DISQUALIFIED  ORGANIZATION,  AS SUCH TERM IS DEFINED IN CODE
SECTION  860E(e)(5),  AN AGENT (INCLUDING A BROKER,  NOMINEE OR OTHER MIDDLEMAN)
FOR A DISQUALIFIED ORGANIZATION OR A NON-PERMITTED FOREIGN HOLDER, AS DEFINED IN
SECTION  5.02(d) OF THE POOLING AND  SERVICING  AGREEMENT  AND TO HAVE AGREED TO
SUCH  AMENDMENTS  TO THE POOLING AND  SERVICING  AGREEMENT AS MAY BE REQUIRED TO
FURTHER EFFECTUATE THE RESTRICTIONS ON TRANSFERS TO DISQUALIFIED  ORGANIZATIONS,
AGENTS THEREOF OR NON-PERMITTED FOREIGN HOLDERS.

            THE HOLDER OF THIS CLASS A-LR CERTIFICATE,  BY ACCEPTANCE HEREOF, IS
DEEMED TO HAVE AGREED TO THE  DESIGNATION OF THE MASTER SERVICER AS ITS AGENT TO
ACT AS "TAX MATTERS PERSON" OF THE LOWER-TIER  REMIC TO PERFORM THE FUNCTIONS OF
A "TAX MATTERS PARTNER" FOR PURPOSES OF SUBCHAPTER C OF CHAPTER 63 OF SUBTITLE F
OF THE CODE, OR, IF SO REQUESTED BY THE MASTER  SERVICER,  TO ACT AS TAX MATTERS
PERSON OF THE LOWER-TIER REMIC.

            THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR  TRANSFERRED  TO ANY
PERSON WHICH IS AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT ARRANGEMENT SUBJECT
TO TITLE I OF THE EMPLOYEE  RETIREMENT  INCOME  SECURITY ACT OF 1974, AS AMENDED
("ERISA"),  OR SECTION 4975 OF THE CODE OR A  GOVERNMENTAL  PLAN,  AS DEFINED IN
SECTION 3(32) OF ERISA SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A
MATERIAL  EXTENT,  SIMILAR  TO THE  FOREGOING  PROVISIONS  OF  ERISA OR THE CODE
(COLLECTIVELY,  A "PLAN"),  OR ANY PERSON  ACTING ON BEHALF OF OR INVESTING  THE
ASSETS OF A PLAN.



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 1999-18, CLASS A-LR

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                   include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $100.00
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS  CERTIFIES  THAT  __________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holder of the Class  A-LR  Certificate  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-LR Certificate required to be distributed to
the Holder of the Class A-LR Certificate on such Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-LR Certificate  applicable to each  Distribution Date will be 6.500% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-LR Certificate, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as  such  name  and  address   shall   appear  on  the   Certificate   Register.
Notwithstanding  the above,  the final  distribution on this Certificate will be
made  after  due  notice  of the  pendency  of such  distribution  and only upon
presentation and surrender of this Certificate at the office or agency specified
by the Trust Administrator for that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                          First Union National Bank,
                                          Trust Administrator



                                          By
                                             ----------------------------
                                          Authorized Officer

Countersigned:



   First Union National Bank,
   Trust Administrator



   By
      ------------------------
   Authorized Officer



<PAGE>






                                   EXHIBIT B-1
                     [FORM OF FACE OF CLASS B-1 CERTIFICATE]

            THIS  CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS
A  CERTIFICATES  AND  FINANCIAL  SECURITY  AS  DESCRIBED  IN THE  POOLING  AND
SERVICING AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS B-1

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final  Scheduled  Maturity Date:
July 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-1  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates and Financial Security as specified
in the Agreement,  any Class B-1 Distribution  Amount required to be distributed
to Holders of the Class B-1 Certificates on such Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-1 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-1 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-1  Certificate  will be made  unless  the
Holder  hereof  desiring to make any such  transfer  shall  deliver to the Trust
Administrator  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 92.78681%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  7.28541667%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.54%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.03555593%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                            Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
    ------------------------
   Authorized Officer



<PAGE>






                                   EXHIBIT B-2
                     [FORM OF FACE OF CLASS B-2 CERTIFICATE]

            THIS  CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES,  FINANCIAL SECURITY AND THE CLASS B-1 CERTIFICATES AS DESCRIBED IN
THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS B-2

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination: $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-2  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates,  Financial Security and each Class
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-2 Distribution  Amount required to be distributed to
Holders of the Class B-2  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-2 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-2 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-2  Certificate  will be made  unless  the
Holder  hereof  desiring to make any such  transfer  shall  deliver to the Trust
Administrator  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 91.16181%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately  8.91041667%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.79%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.04300523%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer



<PAGE>






                                   EXHIBIT B-3
                     [FORM OF FACE OF CLASS B-3 CERTIFICATE]

            THIS  CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES,  FINANCIAL SECURITY,  THE CLASS B-1 CERTIFICATES AND THE CLASS B-2
CERTIFICATES  AS DESCRIBED IN THE POOLING AND  SERVICING  AGREEMENT  REFERRED TO
HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS B-3

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS   CERTIFIES   THAT   _______________________________   is   the
registered  owner of the Percentage  Interest  evidenced by this  Certificate in
monthly  distributions to the Holders of the Class B-3 Certificates with respect
to a Trust Estate  consisting of a pool of fixed  interest  rate,  conventional,
monthly pay,  fully  amortizing,  first lien,  one- to  four-family  residential
mortgage  loans,  other than the Fixed  Retained  Yield,  if any,  with  respect
thereto,  and which may include loans  secured by shares  issued by  cooperative
housing  corporations  (the "Mortgage Loans") formed by Norwest Asset Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates,  Financial Security and each Class
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-3 Distribution  Amount required to be distributed to
Holders of the Class B-3  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-3 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-3 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-3  Certificate  will be made  unless  the
Holder  hereof  desiring to make any such  transfer  shall  deliver to the Trust
Administrator  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 85.38056%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 14.69166667%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  8.72%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.06811102%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator


                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
  ------------------------
   Authorized Officer



<PAGE>






                                   EXHIBIT B-4
                     [FORM OF FACE OF CLASS B-4 CERTIFICATE]

            THIS  CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES,  FINANCIAL  SECURITY,  THE CLASS B-1  CERTIFICATES,  THE CLASS B-2
CERTIFICATES  AND THE CLASS B-3  CERTIFICATES  AS  DESCRIBED  IN THE POOLING AND
SERVICING AGREEMENT REFERRED TO HEREIN.

            THIS  CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED  UNDER THE
SECURITIES ACT OF 1933, AS AMENDED,  OR THE SECURITIES LAWS OF ANY STATE AND MAY
NOT BE RESOLD OR  TRANSFERRED  UNLESS IT IS REGISTERED  PURSUANT TO SUCH ACT AND
LAWS  OR  IS  SOLD  OR  TRANSFERRED  IN  TRANSACTIONS   WHICH  ARE  EXEMPT  FROM
REGISTRATION UNDER SUCH ACT AND UNDER APPLICABLE STATE LAW AND IS TRANSFERRED IN
ACCORDANCE  WITH THE  PROVISIONS  OF SECTION  5.02 OF THE POOLING AND  SERVICING
AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS B-4

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-4  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates,  Financial Security and each Class
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-4 Distribution  Amount required to be distributed to
Holders of the Class B-4  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-4 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-4 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-4  Certificate  will be made  unless such
transfer is exempt from the  registration  requirements of the Securities Act of
1933,  as  amended,  and  any  applicable  state  securities  laws or is made in
accordance  with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof,  (i) the transferee will be required to execute
an  investment  letter in the form  described in the  Agreement and (ii) if such
transfer  is to be made  within  three  years  from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any  affiliate  thereof  was  a  Holder  of  the  Certificates  proposed  to  be
transferred,  and unless  such  transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended,  the Trust  Administrator  or the Seller may
require  the Holder to deliver an opinion of counsel  acceptable  to and in form
and substance  satisfactory to the Trust  Administrator and the Seller that such
transfer is exempt (describing the applicable  exemption and the basis therefor)
from  or is  being  made  pursuant  to  the  registration  requirements  of  the
Securities Act of 1933, as amended,  and of any applicable statute of any state.
The Holder hereof desiring to effect such transfer shall,  and does hereby agree
to,  indemnify  the Trustee,  the Trust  Administrator,  the Seller,  the Master
Servicer,  and any  Paying  Agent  acting on  behalf of the Trust  Administrator
against any liability that may result if the transfer is not so exempt or is not
made in accordance with such Federal and state laws. In connection with any such
transfer, the Trust Administrator will also require (i) a representation letter,
in the  form  as  described  in the  Agreement,  stating  either  (a)  that  the
transferee  is not a Plan and is not  acting  on  behalf  of a Plan or using the
assets of a Plan to effect such  purchase  or (b) subject to certain  conditions
described  in the  Agreement,  that the  source of funds used to  purchase  this
Certificate  is  an  "insurance  company  general  account,"  or  (ii)  if  such
transferee  is a Plan,  (a) an opinion of counsel  acceptable to and in form and
substance satisfactory to the Trust Administrator and the Seller with respect to
certain  matters  and (b) such other  documentation  as the Seller or the Master
Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 70.19306%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 29.87916667%;  (ii) the annual yield to maturity of
this Certificate,  compounded  monthly,  is approximately  11.69%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.12254431%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer



<PAGE>





                                   EXHIBIT B-5
                     [FORM OF FACE OF CLASS B-5 CERTIFICATE]

            THIS  CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES,  FINANCIAL  SECURITY,  THE CLASS B-1  CERTIFICATES,  THE CLASS B-2
CERTIFICATES,  THE CLASS B-3  CERTIFICATES  AND THE  CLASS B-4  CERTIFICATES  AS
DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

            THIS  CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED  UNDER THE
SECURITIES ACT OF 1933, AS AMENDED,  OR THE SECURITIES LAWS OF ANY STATE AND MAY
NOT BE RESOLD OR  TRANSFERRED  UNLESS IT IS REGISTERED  PURSUANT TO SUCH ACT AND
LAWS  OR  IS  SOLD  OR  TRANSFERRED  IN  TRANSACTIONS   WHICH  ARE  EXEMPT  FROM
REGISTRATION UNDER SUCH ACT AND UNDER APPLICABLE STATE LAW AND IS TRANSFERRED IN
ACCORDANCE  WITH THE  PROVISIONS  OF SECTION  5.02 OF THE POOLING AND  SERVICING
AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS B-5

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-5  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates,  Financial Security and each Class
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-5 Distribution  Amount required to be distributed to
Holders of the Class B-5  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-5 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-5 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-5  Certificate  will be made  unless such
transfer is exempt from the  registration  requirements of the Securities Act of
1933,  as  amended,  and  any  applicable  state  securities  laws or is made in
accordance  with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof,  (i) the transferee will be required to execute
an  investment  letter in the form  described in the  Agreement and (ii) if such
transfer  is to be made  within  three  years  from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any  affiliate  thereof  was  a  Holder  of  the  Certificates  proposed  to  be
transferred,  and unless  such  transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended,  the Trust  Administrator  or the Seller may
require  the Holder to deliver an opinion of counsel  acceptable  to and in form
and substance  satisfactory to the Trust  Administrator and the Seller that such
transfer is exempt (describing the applicable  exemption and the basis therefor)
from  or is  being  made  pursuant  to  the  registration  requirements  of  the
Securities Act of 1933, as amended,  and of any applicable statute of any state.
The Holder hereof desiring to effect such transfer shall,  and does hereby agree
to,  indemnify  the Trustee,  the Trust  Administrator,  the Seller,  the Master
Servicer,  and any  Paying  Agent  acting on  behalf of the Trust  Administrator
against any liability that may result if the transfer is not so exempt or is not
made in accordance with such Federal and state laws. In connection with any such
transfer, the Trust Administrator will also require (i) a representation letter,
in the  form  as  described  in the  Agreement,  stating  either  (a)  that  the
transferee  is not a Plan and is not  acting  on  behalf  of a Plan or using the
assets of a Plan to effect such  purchase  or (b) subject to certain  conditions
described  in the  Agreement,  that the  source of funds used to  purchase  this
Certificate  is  an  "insurance  company  general  account,"  or  (ii)  if  such
transferee  is a Plan,  (a) an opinion of counsel  acceptable to and in form and
substance satisfactory to the Trust Administrator and the Seller with respect to
certain  matters  and (b) such other  documentation  as the Seller or the Master
Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 53.53681%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 46.53541667%;  (ii) the annual yield to maturity of
this Certificate,  compounded  monthly,  is approximately  16.27%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.15900409%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer



<PAGE>






                                   EXHIBIT B-6
                     [FORM OF FACE OF CLASS B-6 CERTIFICATE]

            THIS  CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES,  FINANCIAL  SECURITY,  THE CLASS B-1  CERTIFICATES,  THE CLASS B-2
CERTIFICATES,  THE CLASS B-3  CERTIFICATES,  THE CLASS B-4  CERTIFICATES AND THE
CLASS B-5  CERTIFICATES  AS  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN.

            THIS  CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED  UNDER THE
SECURITIES ACT OF 1933, AS AMENDED,  OR THE SECURITIES LAWS OF ANY STATE AND MAY
NOT BE RESOLD OR  TRANSFERRED  UNLESS IT IS REGISTERED  PURSUANT TO SUCH ACT AND
LAWS  OR  IS  SOLD  OR  TRANSFERRED  IN  TRANSACTIONS   WHICH  ARE  EXEMPT  FROM
REGISTRATION UNDER SUCH ACT AND UNDER APPLICABLE STATE LAW AND IS TRANSFERRED IN
ACCORDANCE  WITH THE  PROVISIONS  OF SECTION  5.02 OF THE POOLING AND  SERVICING
AGREEMENT REFERRED TO HEREIN.

            EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE POOLING AND  SERVICING
AGREEMENT  REFERRED  TO HEREIN,  THIS  CERTIFICATE  MAY NOT BE  PURCHASED  BY OR
TRANSFERRED TO ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING
EITHER  (A)  THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN OR  OTHER
RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF THE  EMPLOYEE  RETIREMENT  INCOME
SECURITY  ACT OF 1974,  AS AMENDED  ("ERISA"),  OR SECTION  4975 OF THE INTERNAL
REVENUE CODE OF 1986,  AS AMENDED  (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN,  AS
DEFINED IN SECTION  3(32) OF ERISA,  SUBJECT TO ANY FEDERAL,  STATE OR LOCAL LAW
WHICH IS, TO A MATERIAL EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR
THE CODE (COLLECTIVELY,  A "PLAN"),  AND IS NOT ACTING ON BEHALF OF OR INVESTING
THE  ASSETS OF A PLAN OR (B)  SUBJECT  TO  CERTAIN  CONDITIONS  SET FORTH IN THE
POOLING AND SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS
CERTIFICATE IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-18, CLASS B-6

                       evidencing an interest in a pool of
                       fixed interest rate, conventional,
                      monthly pay, fully amortizing, first
                      lien, one- to four-family residential
                        mortgage loans, which may include
                        loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                         Cut-Off Date:  June 1, 1999

CUSIP No.:                               First Distribution Date:  July 26, 1999

Percentage Interest evidenced by this    Denomination:  $
Certificate:  %

Final Scheduled  Maturity  Date:
July 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-6  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling  and  Servicing  Agreement  dated as of June 29, 1999 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer (the "Master  Servicer"),  First Union  National Bank, as trust
administrator (the "Trust Administrator") and the United States Trust Company of
New York,  as trustee  (the  "Trustee"),  a summary of certain of the  pertinent
provisions of which is set forth hereinafter.  To the extent not defined herein,
the  capitalized  terms used herein have the meanings  ascribed to such terms in
the  Agreement.  This  Certificate  is issued under and is subject to the terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates,  Financial Security and each Class
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-6 Distribution  Amount required to be distributed to
Holders of the Class B-6  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-6 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-6 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-6  Certificate  will be made  unless such
transfer is exempt from the  registration  requirements of the Securities Act of
1933,  as  amended,  and  any  applicable  state  securities  laws or is made in
accordance  with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof,  (i) the transferee will be required to execute
an  investment  letter in the form  described in the  Agreement and (ii) if such
transfer  is to be made  within  three  years  from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any  affiliate  thereof  was  a  Holder  of  the  Certificates  proposed  to  be
transferred,  and unless  such  transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended,  the Trust  Administrator  or the Seller may
require  the Holder to deliver an opinion of counsel  acceptable  to and in form
and substance  satisfactory to the Trust  Administrator and the Seller that such
transfer is exempt (describing the applicable  exemption and the basis therefor)
from  or is  being  made  pursuant  to  the  registration  requirements  of  the
Securities Act of 1933, as amended,  and of any applicable statute of any state.
The Holder hereof desiring to effect such transfer shall,  and does hereby agree
to,  indemnify  the Trustee,  the Trust  Administrator,  the Seller,  the Master
Servicer,  and any  Paying  Agent  acting on  behalf of the Trust  Administrator
against any liability that may result if the transfer is not so exempt or is not
made in accordance with such Federal and state laws. In connection with any such
transfer, the Trust Administrator will also require (i) a representation letter,
in the  form  as  described  in the  Agreement,  stating  either  (a)  that  the
transferee  is not a Plan and is not  acting  on  behalf  of a Plan or using the
assets of a Plan to effect such  purchase  or (b) subject to certain  conditions
described  in the  Agreement,  that the  source of funds used to  purchase  this
Certificate  is  an  "insurance  company  general  account,"  or  (ii)  if  such
transferee  is a Plan,  (a) an opinion of counsel  acceptable to and in form and
substance satisfactory to the Trust Administrator and the Seller with respect to
certain  matters  and (b) such other  documentation  as the Seller or the Master
Servicer may require, as described in the Agreement.

            This  Certificate is issued on June 29, 1999, and based on its issue
price of 24.50556%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 4 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 275% SPA (as
defined in the  Prospectus  Supplement  dated June 24, 1999 with  respect to the
offering of the Class A Certificates (except the Class A-PO Certificates), Class
B-1, Class B-2 and Class B-3 Certificates)  used to price this Certificate:  (i)
the  amount of OID as a  percentage  of the  initial  principal  balance of this
Certificate is approximately 75.56666667%;  (ii) the annual yield to maturity of
this Certificate,  compounded  monthly,  is approximately  34.42%; and (iii) the
amount of OID allocable to the short first accrual period (June 29, 1999 to July
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.13858197%.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By
                                          ----------------------------
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By
   ------------------------
   Authorized Officer



<PAGE>






                                    EXHIBIT C
                [Form of Reverse of Series 1999-18 Certificates]

                      NORWEST ASSET SECURITIES CORPORATION
                       MORTGAGE PASS-THROUGH CERTIFICATES
                                 SERIES 1999-18

            This  Certificate is one of a duly authorized  issue of Certificates
issued in several Classes  designated as Mortgage  Pass-Through  Certificates of
the Series specified hereon (herein collectively called the "Certificates").

            The  Certificates  are  limited  in  right  of  payment  to  certain
collections  and  recoveries   respecting  the  Mortgage  Loans,   all  as  more
specifically  set forth  herein  and in the  Agreement.  In the event  funds are
advanced with respect to any Mortgage Loan by a Servicer, the Master Servicer or
the Trust  Administrator,  such advances are reimbursable to such Servicer,  the
Master  Servicer  or the  Trust  Administrator  to the  extent  provided  in the
Agreement, from related recoveries on such Mortgage Loan or from other cash that
would have been distributable to Certificateholders.

            As  provided  in the  Agreement,  withdrawals  from the  Certificate
Account created for the benefit of Certificateholders  may be made by the Master
Servicer  from  time  to  time  for  purposes   other  than   distributions   to
Certificateholders,  such purposes  including  reimbursement to a Servicer,  the
Master Servicer or the Trust Administrator,  as applicable,  of advances made by
such Servicer, the Master Servicer or the Trust Administrator.

            The Agreement permits, with certain exceptions therein provided, the
amendment of the Agreement and the modification of the rights and obligations of
the Seller, the Master Servicer, the Trust Administrator and the Trustee and the
rights of the Certificateholders  under the Agreement at any time by the Seller,
the Master Servicer, the Trust Administrator and the Trustee with the consent of
the Holders of Certificates evidencing in the aggregate not less than 66 2/3% of
the Voting Interests of each Class of Certificates  affected  thereby.  Any such
consent by the Holder of this  Certificate  shall be  conclusive  and binding on
such  Holder  and  upon  all  future  holders  of  this  Certificate  and of any
Certificate  issued upon the  transfer  hereof or in exchange  hereof or in lieu
hereof whether or not notation of such consent is made upon the Certificate. The
Agreement also permits the amendment  thereof in certain  circumstances  without
the consent of the Holders of any of the Certificates.

            As provided  in the  Agreement  and  subject to certain  limitations
therein  set forth,  the  transfer of this  Certificate  is  registrable  in the
Certificate  Register upon surrender of this  Certificate  for  registration  of
transfer  at the office or agency  appointed  by the Trust  Administrator,  duly
endorsed by, or  accompanied by an assignment in the form below or other written
instrument of transfer in form  satisfactory to the Trust  Administrator and the
Certificate  Registrar,  duly  executed  by the Holder  hereof or such  Holder's
attorney duly authorized in writing,  and thereupon one or more new Certificates
of authorized  Denominations  evidencing the same Class and aggregate Percentage
Interest will be issued to the designated transferee or transferees.

            The  Certificates  are  issuable  only  as  registered  Certificates
without  coupons in Classes and  Denominations  specified in the  Agreement.  As
provided in the Agreement and subject to certain  limitations therein set forth,
Certificates are  exchangeable for new Certificates of authorized  Denominations
evidencing the same Class and aggregate Percentage Interest, as requested by the
Holder surrendering the same.

            No service charge will be made for any such registration of transfer
or  exchange,  but the Trust  Administrator  or the  Certificate  Registrar  may
require  payment  of a sum  sufficient  to cover  any tax or other  governmental
charge payable in connection therewith.

            The  Seller,  the  Master  Servicer,  the Trust  Administrator,  the
Trustee and the Certificate  Registrar,  and any agent of the Seller, the Master
Servicer, the Trust Administrator, the Trustee or the Certificate Registrar, may
treat the  Person in whose  name this  Certificate  is  registered  as the owner
hereof for all purposes,  and neither the Seller, the Master Servicer, the Trust
Administrator,  the Trustee, the Certificate  Registrar nor any such agent shall
be affected by notice to the contrary.

            The  obligations   created  by  the  Agreement  in  respect  of  the
Certificates  and the Trust Estate created thereby shall terminate upon the last
action required to be taken by the Trust Administrator on the Final Distribution
Date pursuant to the Agreement following the earlier of (i) the payment or other
liquidation (or advance with respect  thereto) of the last Mortgage Loan subject
thereto or the disposition of all property  acquired upon foreclosure or deed in
lieu of  foreclosure  of any Mortgage  Loan, and (ii) the purchase by the Seller
from the Trust Estate of all remaining  Mortgage Loans and all property acquired
in respect of such Mortgage Loans; provided, however, that the Trust Estate will
in no event  continue  beyond the  expiration  of 21 years from the death of the
last survivor of the  descendants of Joseph P. Kennedy,  the late  ambassador of
the  United  States  to the  Court  of St.  James,  living  on the  date  of the
Agreement.  The Agreement permits,  but does not require, the Seller to purchase
all  remaining  Mortgage  Loans and all  property  acquired  in  respect  of any
Mortgage Loan at a price  determined as provided in the Agreement.  The exercise
of such option will effect early  retirement of the  Certificates,  the Seller's
right to exercise  such option  being  subject to the Pool  Scheduled  Principal
Balance  of the  Mortgage  Loans as of the  Distribution  Date  upon  which  the
proceeds of such repurchase are  distributed  being less than ten percent of the
Cut-Off Date Aggregate Principal Balance.



<PAGE>




                                   ASSIGNMENT

FOR VALUE RECEIVED,  the undersigned  hereby sell(s),  assign(s) and transfer(s)
unto
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

            (Please print or typewrite name and address  including  postal zip
code of assignee)

the  beneficial   interest   evidenced  by  the  within  Mortgage   Pass-Through
Certificate and hereby  authorizes the transfer of registration of such interest
to assignee on the Certificate Register of the Trust Estate.

            I (We)  further  direct  the  Certificate  Registrar  to issue a new
Certificate  of a like  Denomination  or Percentage  Interest and Class,  to the
above named assignee and deliver such Certificate to the following address:

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

Social Security or other Identifying Number of Assignee:


- --------------------------------------------------------------------------------

Dated:





                                       -----------------------------------
                                          Signature by or on behalf of
                                          assignor


                                       -----------------------------------
                                          Signature Guaranteed



<PAGE>




                            DISTRIBUTION INSTRUCTIONS

            The  assignee   should   include  the   following  for  purposes  of
distribution:

            Distributions  shall be made, if the assignee is eligible to receive
distributions in immediately available funds, by wire transfer or otherwise,  in
immediately  available funds to  ______________________________________  for the
account  of   _______________________________________________   account   number
_________________________________,     or,    if    mailed    by    check,    to
_____________________________________________.  Applicable  statements should be
mailed to _________________________________________________________________.

            This information is provided by ______________________, the assignee
named above, or ___________________________________, as its agent.



<PAGE>





                                    EXHIBIT D

                                    RESERVED



<PAGE>






                                    EXHIBIT E

                               CUSTODIAL AGREEMENT

            THIS CUSTODIAL  AGREEMENT (as amended and supplemented  from time to
time,  the  "Agreement"),  dated as of  _____________,  by and among FIRST UNION
NATIONAL BANK, not individually,  but solely as Trust  Administrator  (including
its successors  under the Pooling and Servicing  Agreement  defined  below,  the
"Trust Administrator"),  NORWEST ASSET SECURITIES CORPORATION (together with any
successor  in  interest,  the  "Seller"),   NORWEST  BANK  MINNESOTA,   NATIONAL
ASSOCIATION  (together  with any  successor in interest or  successor  under the
Pooling and Servicing  Agreement  referred to below, the "Master  Servicer") and
___________________________  (together  with any  successor  in  interest or any
successor appointed hereunder, the "Custodian").

                               W I T N E S S E T H

            WHEREAS,  the Seller, the Master Servicer,  the Trust  Administrator
and United  States Trust  Company of New York,  as trustee,  have entered into a
Pooling  and  Servicing  Agreement  dated as of June 29,  1999  relating  to the
issuance of Mortgage Pass-Through Certificates,  Series 1999-18 (as in effect on
the date of this Agreement, the "Original Pooling and Servicing Agreement",  and
as amended  and  supplemented  from time to time,  the  "Pooling  and  Servicing
Agreement"); and

            WHEREAS,  the  Custodian  has  agreed  to act as agent for the Trust
Administrator  for the purposes of receiving and holding  certain  documents and
other  instruments  delivered  by the Seller  under the  Pooling  and  Servicing
Agreement,  all upon the terms and  conditions  and  subject to the  limitations
hereinafter set forth;

            NOW,  THEREFORE,  in  consideration  of the  premises and the mutual
covenants and agreements  hereinafter set forth,  the Trust  Administrator,  the
Seller, the Master Servicer and the Custodian hereby agree as follows:

                                    ARTICLE I

                                   DEFINITIONS

            Capitalized  terms used in this  Agreement  and not  defined  herein
shall  have  the  meanings  assigned  in  the  Original  Pooling  and  Servicing
Agreement, unless otherwise required by the context herein.

                                   ARTICLE II

                          CUSTODY OF MORTGAGE DOCUMENTS

            Section  2.1  Custodian  to Act as Agent;  Acceptance  of  Custodial
Files. The Custodian, as the duly appointed agent of the Trust Administrator for
these purposes,  acknowledges receipt of the Mortgage Notes, the Mortgages,  the
assignments and other documents relating to the Mortgage Loans identified on the
schedule  attached hereto and declares that it holds and will hold such Mortgage
Notes,  Mortgages,  assignments  and other  documents and any similar  documents
received  by  the  Trust  Administrator  subsequent  to  the  date  hereof  (the
"Custodial Files") as agent for the Trust  Administrator,  in trust, for the use
and  benefit  of  all  present  and  future   Certificateholders.

            Section  2.2  Recordation  of  Assignments.  If any  Custodial  File
includes one or more  assignments to the Trust  Administrator  of Mortgage Notes
and related Mortgages that have not been recorded, each such assignment shall be
delivered by the  Custodian to the Seller for the purpose of recording it in the
appropriate  public  office for real  property  records,  and the Seller,  at no
expense to the Custodian, shall promptly cause to be recorded in the appropriate
public office for real property  records each such  assignment and, upon receipt
thereof  from such  public  office,  shall  return each such  assignment  to the
Custodian.

            Section 2.3 Review of Custodial Files. The Custodian agrees, for the
benefit of  Certificateholders,  to review, in accordance with the provisions of
Section 2.01 of the Pooling and Servicing Agreement,  each Custodial File. If in
performing  the review  required  by this  Section 2.3 the  Custodian  finds any
document or documents  constituting  a part of a Custodial File to be missing or
defective in any material  respect,  the Custodian  shall promptly so notify the
Seller,   the  Master  Servicer  and  the  Trust   Administrator.

            Section  2.4  Notification  of  Breaches  of   Representations   and
Warranties. Upon discovery by the Custodian of a breach of any representation or
warranty  made by the Seller or the Master  Servicer as set forth in the Pooling
and Servicing  Agreement,  the Custodian shall give prompt written notice to the
Seller, the Master Servicer and the Trust  Administrator.

            Section 2.5 Custodian to Cooperate; Release of Custodial Files. Upon
the payment in full of any Mortgage Loan, or the receipt by the Master  Servicer
of a  notification  that payment in full will be escrowed in a manner  customary
for such purposes, the Master Servicer shall immediately notify the Custodian by
a  certification  (which  certification  shall include a statement to the effect
that all amounts  received or to be received  in  connection  with such  payment
which are  required  to be  deposited  in the  Certificate  Account  pursuant to
Section  3.02 of the Pooling  and  Servicing  Agreement  have been or will be so
deposited)  of a  Servicing  Officer  and shall  request  delivery  to it of the
Custodial File. The Custodian  agrees,  upon receipt of such  certification  and
request, promptly to release the related Custodial File to the Master Servicer.

            From time to time as is appropriate for the servicing or foreclosure
of any Mortgage  Loan,  the Master  Servicer  shall  deliver to the  Custodian a
certificate of a Servicing  Officer  requesting  that  possession of all, or any
document  constituting  part of, the  Custodial  File be  released to the Master
Servicer and  certifying as to the reason for such release and that such release
will not invalidate any insurance  coverage  provided in respect of the Mortgage
Loan. With such certificate,  the Master Servicer shall deliver to the Custodian
a receipt signed by a Servicing  Officer on behalf of the Master  Servicer,  and
upon receipt of the foregoing, the Custodian shall deliver the Custodial File or
such  document  to the Master  Servicer.  The Master  Servicer  shall cause each
Custodial  File or any  document  therein  so  released  to be  returned  to the
Custodian when the need therefor by the Master Servicer no longer exists, unless
(i) the Mortgage Loan has been liquidated and the Liquidation  Proceeds relating
to the  Mortgage  Loan have been  deposited  in the  Certificate  Account to the
extent  required by the Pooling and  Servicing  Agreement or (ii) the  Custodial
File or such document has been delivered to an attorney,  or to a public trustee
or other  public  official as required by law,  for  purposes of  initiating  or
pursuing legal action or other  proceedings for the foreclosure of the Mortgaged
Property  either  judicially  or  non-judicially,  and the Master  Servicer  has
delivered to the Custodian a certificate of a Servicing Officer certifying as to
the name and address of the Person to which such Custodial File or such document
were delivered and the purpose or purposes of such delivery. In the event of the
liquidation of a Mortgage  Loan,  the Custodian  shall deliver such receipt with
respect thereto to the Master  Servicer upon deposit of the related  Liquidation
Proceeds in the  Certificate  Account to the extent  required by the Pooling and
Servicing Agreement.  Section 2.6 Assumption  Agreements.  In the event that any
assumption agreement or substitution of liability agreement is entered into with
respect to any Mortgage Loan subject to this  Agreement in  accordance  with the
terms and provisions of the Pooling and Servicing Agreement, the Master Servicer
shall notify the Custodian that such  assumption or  substitution  agreement has
been completed by forwarding to the Custodian the original of such assumption or
substitution agreement,  which copy shall be added to the related Custodial File
and, for all purposes,  shall be considered a part of such Custodial File to the
same extent as all other documents and instruments  constituting  parts thereof.

                                  ARTICLE III

                            CONCERNING THE CUSTODIAN

            Section 3.1 Custodian a Bailee and Agent of the Trust Administrator.
With respect to each Mortgage Note,  Mortgage and other  documents  constituting
each  Custodian  File which are  delivered to the  Custodian,  the  Custodian is
exclusively  the  bailee  and  agent  of the  Trust  Administrator,  holds  such
documents for the benefit of  Certificateholders  and undertakes to perform such
duties and only such  duties as are  specifically  set forth in this  Agreement.
Except upon compliance with the provisions of Section 2.5 of this Agreement,  no
Mortgage  Note,  Mortgage or other  document  constituting a part of a Custodial
File shall be delivered by the Custodian to the Seller or the Master Servicer or
otherwise   released  from  the  possession  of  the   Custodian.

            Section 3.2  Indemnification.  The Seller hereby agrees to indemnify
and hold the  Custodian  harmless  from and  against  all  claims,  liabilities,
losses,  actions,  suits  or  proceedings  at law  or in  equity,  or any  other
expenses,  fees or charges of any  character or nature,  which the Custodian may
incur or with which the  Custodian may be threatened by reasons of its acting as
custodian  under this  Agreement,  including  indemnification  of the  Custodian
against  any and all  expenses,  including  attorney's  fees if counsel  for the
Custodian has been approved by the Seller, and the cost of defending any action,
suit or proceedings or resisting any claim. Notwithstanding the foregoing, it is
specifically  understood and agreed that in the event any such claim, liability,
loss,  action,  suit or proceeding or other expense,  fees, or charge shall have
been caused by reason of any negligent act, negligent failure to act, or willful
misconduct  on the part of the  Custodian,  or which shall  constitute a willful
breach of its duties hereunder, the indemnification provisions of this Agreement
shall not apply.

            Section 3.3  Custodian  May Own  Certificates.  The Custodian in its
individual or any other capacity may become the owner or pledgee of Certificates
with the same rights it would have if it were not Custodian.

            Section 3.4 Master  Servicer to Pay  Custodian's  Fees and Expenses.
The Master  Servicer  covenants and agrees to pay to the Custodian  from time to
time, and the Custodian shall be entitled to,  reasonable  compensation  for all
services rendered by it in the exercise and performance of any of the powers and
duties hereunder of the Custodian, and the Master Servicer will pay or reimburse
the Custodian upon its request for all reasonable  expenses,  disbursements  and
advances  incurred  or made  by the  Custodian  in  accordance  with  any of the
provisions of this  Agreement  (including the  reasonable  compensation  and the
expenses and  disbursements  of its counsel and of all persons not  regularly in
its employ), except any such expense,  disbursement or advance as may arise from
its  negligence  or  bad  faith.

            Section 3.5 Custodian  May Resign;  Trust  Administrator  May Remove
Custodian.  The  Custodian  may resign from the  obligations  and duties  hereby
imposed upon it as such obligations and duties relate to its acting as Custodian
of the Mortgage  Loans.  Upon  receiving such notice of  resignation,  the Trust
Administrator  shall either take custody of the Custodial  Files itself and give
prompt notice  thereof to the Seller,  the Master  Servicer and the Custodian or
promptly appoint a successor Custodian by written instrument,  in duplicate, one
copy of which instrument  shall be delivered to the resigning  Custodian and one
copy to the successor Custodian. If the Trust Administrator shall not have taken
custody of the  Custodial  Files and no successor  Custodian  shall have been so
appointed and have accepted  resignation,  the resigning  Custodian may petition
any  court  of  competent  jurisdiction  for  the  appointment  of  a  successor
Custodian.

            The Trust  Administrator  may remove the  Custodian at any time.  In
such  event,  the Trust  Administrator  shall  appoint,  or  petition a court of
competent  jurisdiction  to  appoint,  a  successor  Custodian  hereunder.   Any
successor Custodian shall be a depository  institution subject to supervision or
examination by federal or state authority and shall be able to satisfy the other
requirements contained in Section 3.7.

            Any  resignation  or removal of the Custodian and  appointment  of a
successor  Custodian pursuant to any of the provisions of this Section 3.5 shall
become effective upon acceptance of appointment by the successor Custodian.  The
Trust  Administrator  shall  give  prompt  notice to the  Seller  and the Master
Servicer of the appointment of any successor  Custodian.  No successor Custodian
shall have been appointed and accepted  appointment  by the Trust  Administrator
without the prior  approval of the Seller and the Master  Servicer.

            Section 3.6 Merger or  Consolidation  of Custodian.  Any Person into
which  the  Custodian  may be  merged  or  converted  or  with  which  it may be
consolidated,   or  any  Person   resulting  from  any  merger,   conversion  or
consolidation to which the Custodian shall be a party, or any Person  succeeding
to the  business  of the  Custodian,  shall be the  successor  of the  Custodian
hereunder,  without the  execution  or filing of any paper or any further act on
the  part  of  any  of the  parties  hereto,  anything  herein  to the  contrary
notwithstanding.

            Section 3.7  Representations of the Custodian.  The Custodian hereby
represents  that  it is a  depository  institution  subject  to  supervision  or
examination by a federal or state authority,  has a combined capital and surplus
of at least  $10,000,000 and is qualified to do business in the  jurisdiction in
which it will hold any Custodian File.

                                   ARTICLE IV

                            MISCELLANEOUS PROVISIONS

            Section 4.1 Notices. All notices, requests, consents and demands and
other  communications  required  under this  Agreement  or pursuant to any other
instrument  or document  delivered  hereunder  shall be in writing  and,  unless
otherwise  specifically  provided,  may be delivered personally,  by telegram or
telex,  or by registered or certified  mail,  postage  prepaid,  return  receipt
requested,  at the  addresses  specified on the  signature  page hereof  (unless
changed by the particular party whose address is stated herein by similar notice
in writing),  in which case the notice will be deemed  delivered  when received.


            Section  4.2   Amendments.   No  modification  or  amendment  of  or
supplement to this Agreement  shall be valid or effective  unless the same is in
writing and signed by all  parties  hereto,  and neither the Seller,  the Master
Servicer  nor the Trust  Administrator  shall  enter into any  amendment  hereof
except  as  permitted  by  the  Pooling  and  Servicing  Agreement.   The  Trust
Administrator  shall give prompt  notice to the  Custodian  of any  amendment or
supplement to the Pooling and Servicing Agreement and furnish the Custodian with
written  copies  thereof.

            Section 4.3 Governing Law. This Agreement shall be deemed a contract
made under the laws of the State of New York and shall be construed and enforced
in  accordance  with and governed by the laws of the State of New York.

            Section 4.4  Recordation  of Agreement.  To the extent  permitted by
applicable  law, this  Agreement is subject to  recordation  in all  appropriate
public offices for real property records in all the counties or other comparable
jurisdictions in which any or all of the properties subject to the Mortgages are
situated,  and in any other  appropriate  public  recording office or elsewhere,
such  recordation  to be effected by the Master  Servicer  and at its expense on
direction by the Trust Administrator,  but only upon direction accompanied by an
Opinion  of  Counsel  to  the  effect  that  such  recordation   materially  and
beneficially affects the interests of the Certificateholders.

            For the purpose of facilitating the recordation of this Agreement as
herein  provided  and  for  other  purposes,  this  Agreement  may  be  executed
simultaneously in any number of counterparts,  each of which  counterparts shall
be deemed to be an original,  and such counterparts shall constitute but one and
the same instrument.

            Section 4.5  Severability  of Provisions.  If any one or more of the
covenants,  agreements,  provisions or terms of this Agreement  shall be for any
reason whatsoever held invalid, then such covenants,  agreements,  provisions or
terms  shall be  deemed  severable  from the  remaining  covenants,  agreements,
provisions or terms of this Agreement and shall in no way affect the validity or
enforceability  of the other provisions of this Agreement or of the Certificates
or the rights of the holders thereof.



<PAGE>




            IN WITNESS WHEREOF,  this Agreement is executed as of the date first
above written.


Address:                                 FIRST UNION NATIONAL BANK

230 South Tryon Street                   By:
                                            ------------------------------
Charlotte, North Carolina, 28288         Name:
                                              ----------------------------
                                         Title:
                                               ---------------------------

Address:                                 NORWEST ASSET SECURITIES
                                            CORPORATION
7485 New Horizon Way
Frederick, Maryland 21703                By:
                                            ------------------------------
                                         Name:
                                              ----------------------------
                                         Title:
                                               ---------------------------

Address:                                 NORWEST BANK MINNESOTA, NATIONAL
                                            ASSOCIATION
7485 New Horizon Way
Frederick, Maryland 21703                By:
                                            ------------------------------
                                         Name:
                                             -----------------------------
                                         Title:
                                               ---------------------------

Address:                                 [CUSTODIAN]

                                         By:
                                            ------------------------------
                                         Name:
                                              ----------------------------
                                         Title:
                                               ---------------------------




<PAGE>




STATE OF          )
                  :  ss.:
COUNTY OF         )

            On this ____ day of _________,  19__,  before me, a notary public in
and for the State of ____________, personally appeared _______________, known to
me  who,  being  by me duly  sworn,  did  depose  and say  that  he  resides  at
__________________________;   that  he  is  the   __________  of  Norwest  Asset
Securities Corporation a Delaware corporation,  one of the parties that executed
the  foregoing  instrument;  and that he signed his name thereto by order of the
Board of Directors of said corporation.



                                             -----------------------------------
                                                      Notary Public



[NOTARIAL SEAL]



<PAGE>




STATE OF          )
                  :  ss.:
COUNTY OF         )

            On this ____ day of _________,  19__,  before me, a notary public in
and for the State of ____________, personally appeared _______________, known to
me  who,  being  by me duly  sworn,  did  depose  and say  that  he  resides  at
__________________________; that he is the __________ of Norwest Bank Minnesota,
National  Association,  a national banking association,  one of the parties that
executed the foregoing instrument;  and that he signed his name thereto by order
of the Board of Directors of said corporation.



                                             -----------------------------------
                                                      Notary Public



[NOTARIAL SEAL]



<PAGE>




STATE OF          )
                  :  ss.:
COUNTY OF         )

            On this ___ day of ________, 19__, before me, a notary public in and
for the State of ____________,  personally appeared __________ _________,  known
to me who,  being  by me duly  sworn,  did  depose  and say that he  resides  at
__________________________;  that he is the  ____________________ of First Union
National Bank, a national banking association,  one of the parties that executed
the  foregoing  instrument;  and that he signed his name thereto by order of the
Board of Directors of said association.



                                             -----------------------------------

                                                      Notary Public



[NOTARIAL SEAL]



<PAGE>




STATE OF          )
                  :  ss.:
COUNTY OF         )

            On this ____ day of ________, 19 , before me, a notary public in and
for the State of __________, personally appeared __________ __________, known to
me  who,  being  by me duly  sworn,  did  depose  and say  that  he  resides  at
__________________________;   that   he  is   the   _______________________   of
______________________,  a  _________________________,  one of the parties  that
executed the foregoing instrument;  and that he signed his name thereto by order
of the Board of Directors of said association.



                                             -----------------------------------

                                                      Notary Public



[NOTARIAL SEAL]



<PAGE>






                                   EXHIBIT F-1

            [Schedule of Mortgage Loans Serviced by Norwest Mortgage
                 from locations other than Frederick, Maryland]





<PAGE>






                                   EXHIBIT F-2

           [Schedule of Mortgage Loans Serviced by Norwest Mortgage in
                              Frederick, Maryland]




<PAGE>






                                   EXHIBIT F-3

            [Schedule of Mortgage Loans Serviced by Other Servicers]



<PAGE>






                                    EXHIBIT G

                               REQUEST FOR RELEASE
                       (for Trust Administrator/Custodian)



Loan Information

      Name of Mortgagor:                  _____________________________

      Servicer
      Loan No.:                           _____________________________



Custodian/Trust Administrator

      Name:                               _____________________________

      Address:                            _____________________________

      Custodian/Trustee                   _____________________________

      Mortgage File No.:                  _____________________________



Seller

      Name:                               _____________________________

      Address:                            _____________________________

      Certificates:
                                          Mortgage Pass-Through Certificates,
                                          Series 1999-18

            The  undersigned  Master Servicer  hereby  acknowledges  that it has
received from First Union National Bank, as Trust  Administrator for the Holders
of Mortgage Pass-Through Certificates, Series 1999-18, the documents referred to
below (the  "Documents").  All capitalized  terms not otherwise  defined in this
Request  for  Release  shall have the  meanings  given them in the  Pooling  and
Servicing  Agreement  dated as of June 29,  1999  (the  "Pooling  and  Servicing
Agreement") among the Trust  Administrator,  the Seller, the Master Servicer and
the United States Trust Company of New York, as Trustee.

( )   Promissory Note dated ______________, 199__, in the original principal sum
      of $___________, made by ____________________,  payable to, or endorsed to
      the order of, the Trustee.


( )   Mortgage   recorded   on    _____________________    as   instrument   no.
      ______________   in  the  County   Recorder's  Office  of  the  County  of
      ____________________, State of _______________________ in book/reel/docket
      ____________________ of official records at page/image ------------.


( )   Deed  of  Trust  recorded  on   ____________________   as  instrument  no.
      _________________  in  the  County  Recorder's  Office  of the  County  of
      ___________________,   State  of   _________________  in  book/reel/docket
      ____________________ of official records at page/image ____________.


( )   Assignment  of  Mortgage  or Deed of Trust  to the  Trustee,  recorded  on
      ______________________________  as instrument  no.  ______________  in the
      County Recorder's Office of the County of ______________________, State of
      _____________________ in book/reel/docket ____________________ of official
      records at page/image ____________.


( )   Other   documents,   including  any   amendments,   assignments  or  other
      assumptions of the Mortgage Note or Mortgage.

      ( ) ---------------------------------------------

      ( ) ---------------------------------------------

      ( ) ---------------------------------------------

      ( ) ---------------------------------------------

      The undersigned Master Servicer hereby acknowledges and agrees as follows:

            (1) The Master  Servicer  shall hold and  retain  possession  of the
      Documents in trust for the benefit of the Trustee, solely for the purposes
      provided in the Agreement.

            (2) The Master  Servicer  shall not cause or permit the Documents to
      become subject to, or encumbered by, any claim, liens,  security interest,
      charges,  writs of  attachment or other  impositions  nor shall the Master
      Servicer  assert  or seek to assert  any  claims or rights of setoff to or
      against the Documents or any proceeds thereof.

            (3) The Master  Servicer  shall  return the  Documents  to the Trust
      Administrator when the need therefor no longer exists, unless the Mortgage
      Loan  relating  to the  Documents  has been  liquidated  and the  proceeds
      thereof  have been  remitted  to the  Certificate  Account  and  except as
      expressly provided in the Agreement.

            (4) The Documents and any proceeds  thereof,  including any proceeds
      of proceeds,  coming into the possession or control of the Master Servicer
      shall  at  all  times  be   earmarked   for  the   account  of  the  Trust
      Administrator,  on behalf of the Trustee,  and the Master  Servicer  shall
      keep the Documents  and any proceeds  separate and distinct from all other
      property in the Master Servicer's possession, custody or control.


                                       NORWEST BANK MINNESOTA, NATIONAL
                                          ASSOCIATION



                                       By:
                                          -----------------------------


                                       Title:
                                             --------------------------

Date: ________________, 19__



<PAGE>






                                    EXHIBIT H

                                          AFFIDAVIT    PURSUANT   TO   SECTION
                                          860E(e)(4)  OF THE INTERNAL  REVENUE
                                          CODE OF 1986,  AS  AMENDED,  AND FOR
                                          NON-ERISA INVESTORS

STATE OF          ) )
                    ) ss:
COUNTY OF         ) )

            [NAME OF OFFICER], being first duly sworn, deposes and says:

            1.  That he is  [Title  of  Officer]  of  [Name of  Purchaser]  (the
"Purchaser"),  a  [description  of type of entity] duly  organized  and existing
under the laws of the [State of ] [United  States],  on behalf of which he makes
this affidavit.

            2. That the Purchaser's  Taxpayer  Identification  Number is [ ].

            3. That the Purchaser is not a  "disqualified  organization"  within
the meaning of Section  860E(e)(5),of  the  Internal  Revenue  Code of 1986,  as
amended  (the  "Code"),  or an  ERISA  Prohibited  Holder,  and  will  not  be a
"disqualified  organization"  or an  ERISA  Prohibited  Holder,  as of  [date of
transfer],  and that the  Purchaser is not acquiring  Norwest  Asset  Securities
Corporation   Mortgage   Pass-Through   Certificates,   Series  1999-18,   Class
[A-R][A-LR]  Certificate (the "Class  [A-R][A-LR]  Certificate") for the account
of, or as agent  (including  a broker,  nominee,  or other  middleman)  for, any
person or entity from which it has not  received an affidavit  substantially  in
the form of this affidavit.  For these purposes,  a "disqualified  organization"
means the United States, any state or political subdivision thereof, any foreign
government, any international organization, any agency or instrumentality of any
of the foregoing  (other than an  instrumentality  if all of its  activities are
subject to tax and a majority of its board of  directors is not selected by such
governmental entity), any cooperative organization furnishing electric energy or
providing  telephone  service  to persons in rural  areas as  described  in Code
Section  1381(a)(2)(C),  or any organization (other than a farmers'  cooperative
described  in Code  Section  521) that is exempt  from  taxation  under the Code
unless such  organization  is subject to the tax on  unrelated  business  income
imposed by Code Section 511. For these purposes,  an "ERISA  Prohibited  Holder"
means an employee benefit plan or other retirement  arrangement subject to Title
I of the Employee  Retirement Income Security Act of 1974, as amended ("ERISA"),
or Code  Section 4975 or a  governmental  plan,  as defined in Section  3(32) of
ERISA,  subject  to any  federal,  state or local law  which  is, to a  material
extent,  similar to the foregoing provisions of ERISA or the Code (collectively,
a "Plan")  or a Person  acting on behalf of or  investing  the  assets of such a
Plan.

            4. That the Purchaser  historically  has paid its debts as they have
come due and  intends  to pay its debts as they come due in the  future  and the
Purchaser  intends to pay taxes  associated  with holding the Class  [A-R][A-LR]
Certificate  as they become due.

            5. That the Purchaser  understands that it may incur tax liabilities
with  respect  to the Class  [A-R][A-LR]  Certificate  in  excess of cash  flows
generated by the Class [A-R][A-LR]  Certificate.

            6.  That the  Purchaser  will not  transfer  the  Class  [A-R][A-LR]
Certificate to any person or entity from which the Purchaser has not received an
affidavit  substantially  in the  form of this  affidavit  and as to  which  the
Purchaser has actual knowledge that the requirements set forth in paragraph 3, 4
or 7 hereof are not  satisfied or that the Purchaser has reason to know does not
satisfy the requirements set forth in paragraph 4 hereof.

            7. That the Purchaser (i) is a U.S. Person or (ii) is a person other
than a U.S.  Person (a  "Non-U.S.  Person")  that  holds  the Class  [A-R][A-LR]
Certificate  in  connection  with the conduct of a trade or business  within the
United States and has furnished the transferor and the Trust  Administrator with
an effective  Internal  Revenue  Service Form 4224 or successor form at the time
and in the manner  required  by the Code or (iii) is a Non-U.S.  Person that has
delivered to both the  transferor  and the Trust  Administrator  an opinion of a
nationally  recognized  tax counsel to the effect that the transfer of the Class
[A-R][A-LR] Certificate to it is in accordance with the requirements of the Code
and the regulations  promulgated  thereunder and that such transfer of the Class
[A-R][A-LR] Certificate will not be disregarded for federal income tax purposes.
"U.S. Person" means a citizen or resident of the United States, a corporation or
partnership  (unless,  in the case of a partnership,  Treasury  regulations  are
adopted  that provide  otherwise),  created or organized in or under the laws of
the United States,  any state thereof or the District of Columbia,  including an
entity treated as a corporation or partnership  for federal income tax purposes,
an estate whose income is subject to United States federal income tax regardless
of its  source,  or a trust  if a court  within  the  United  States  is able to
exercise primary  supervision over the  administration of such trust, and one or
more such U.S.  Persons have the authority to control all substantial  decisions
of such trust (or, to the extent  provided in applicable  Treasury  regulations,
certain trusts in existence on August 20, 1996 which are eligible to elect to be
treated as U.S. Persons).

            8. That the Purchaser  agrees to such  amendments of the Pooling and
Servicing Agreement as may be required to further effectuate the restrictions on
transfer  of  the  Class   [A-R][A-LR]   Certificate  to  such  a  "disqualified
organization,"  an agent thereof,  an ERISA  Prohibited  Holder or a person that
does not satisfy the  requirements  of paragraph 4,  paragraph 5 and paragraph 7
hereof.

            9. That the  Purchaser  consents  to the  designation  of the Master
Servicer as its agent to act as "tax matters person" of the  [Upper-Tier  REMIC]
[Lower-Tier  REMIC]  pursuant  to  Section  3.01 of the  Pooling  and  Servicing
Agreement,  and if such  designation is not permitted by the Code and applicable
law, to act as tax matters person if requested to do so.



<PAGE>




            IN WITNESS  WHEREOF,  the Purchaser has caused this instrument to be
executed on its behalf,  pursuant to authority of its Board of Directors, by its
[Title of Officer] this ___ day of , 19 __.


                                       [NAME OF PURCHASER]



                                       By:
                                          --------------------------
                                          [Name of Officer]
                                          [Title of Officer]

            Personally  appeared  before me the  above-named  [Name of Officer],
known  or  proved  to me to be  the  same  person  who  executed  the  foregoing
instrument and to be the [Title of Officer], of the Purchaser,  and acknowledged
to me that he [she]  executed  the same as his  [her]  free act and deed and the
free act and deed of the Purchaser.

            Subscribed and sworn before me this __ day of _________, 19 __.



- -----------------------------
NOTARY PUBLIC

COUNTY OF ____________________

STATE OF _____________________

My commission expires the __ day of __________, 19__.



<PAGE>




                                    EXHIBIT I





            [Letter from Transferor of Class [A-R][A-LR] Certificate]





                                     [Date]

First Union National Bank
230 South Tryon Street
Charlotte, North Carolina 28288
     Re:   Norwest Asset Securities Corporation,
           Series 1999-18, Class [A-R][A-LR]

Ladies and Gentlemen:

            [Transferor]  has reviewed the attached  affidavit of  [Transferee],
and has no actual knowledge that such affidavit is not true and has no reason to
know that the information contained in paragraph 4 thereof is not true.


                                       Very truly yours,


                                       [Transferor]



                                       ----------------------



<PAGE>






                                    EXHIBIT J

                      NORWEST ASSET SECURITIES CORPORATION

                       MORTGAGE PASS-THROUGH CERTIFICATES
                                 SERIES 1999-18
                    CLASS [A-PO][B-4][B-5][B-6] CERTIFICATES

                               TRANSFEREE'S LETTER



                                                    ----------------- --, ----

First Union National Bank
230 South Tryon Street
Charlotte, North Carolina 28288

Norwest Asset Securities Corporation
7485 New Horizon Way
Frederick, Maryland 21703

            The undersigned (the "Purchaser") proposes to purchase Norwest Asset
Securities Corporation Mortgage Pass-Through Certificates, Series 1999-18, Class
[A-PO][B-4][B-5][B-6]    Certificates    (the    "Class    [A-PO][B-4][B-5][B-6]
Certificates")  in the  principal  amount  of  $___________.  In doing  so,  the
Purchaser hereby acknowledges and agrees as
follows:

            Section 1.  Definitions.  Each  capitalized term used herein and not
otherwise  defined  herein shall have the meaning  ascribed to it in the Pooling
and Servicing  Agreement,  dated as of June 29, 1999 (the "Pooling and Servicing
Agreement")  among  Norwest  Asset  Securities   Corporation,   as  seller  (the
"Seller"), Norwest Bank Minnesota, National Association, as master servicer (the
"Master  Servicer"),  First Union  National  Bank, as trust  administrator  (the
"Trust  Administrator")  and the United  States  Trust  Company of New York,  as
trustee  (the  "Trustee"),  of Norwest  Asset  Securities  Corporation  Mortgage
Pass-Through Certificates, Series 1999-18.

            Section 2.  Representations  and  Warranties  of the  Purchaser.  In
connection with the proposed transfer,  the Purchaser represents and warrants to
the Seller, the Master Servicer and the Trust Administrator that:

            (a)   The Purchaser is duly organized,  validly existing and in good
standing under the laws of the jurisdiction in which the Purchaser is organized,
is authorized to invest in the Class [A-PO][B-4][B-5][B-6]  Certificates, and to
enter into this Agreement, and duly executed and delivered this Agreement.

            (b)   The  Purchaser  is acquiring  the Class  [A-PO][B-4][B-5][B-6]
Certificates  for its  own  account  as  principal  and  not  with a view to the
distribution thereof, in whole or in part.

            [(c)  The Purchaser has knowledge of financial and business  matters
and is capable of evaluating  the merits and risks of an investment in the Class
[A-PO][B-4][B-5][B-6]  Certificates;  the Purchaser has sought such  accounting,
legal  and tax  advice  as it has  considered  necessary  to  make  an  informed
investment  decision;  and the Purchaser is able to bear the economic risk of an
investment  in the Class  [A-PO][B-4][B-5][B-6]  Certificates  and can  afford a
complete loss of such  investment.] The Purchaser is a "Qualified  Institutional
Buyer" within the meaning of Rule 144A of the Act.]

            (d)   The Purchaser confirms that (a) it has received and reviewed a
copy of the Private Placement  Memorandum dated __________ __, 19__, relating to
the Class  [A-PO][B-4][B-5][B-6]  Certificates  and  reviewed,  to the extent it
deemed appropriate,  the documents attached thereto or incorporated by reference
therein, (b) it has had the opportunity to ask questions of, and receive answers
from the Seller concerning the Class [A-PO][B-4][B-5][B-6]  Certificates and all
matters  relating  thereto,  and obtain any  additional  information  (including
documents) relevant to its decision to purchase the Class  [A-PO][B-4][B-5][B-6]
Certificates  that the Seller  possesses  or can  possess  without  unreasonable
effort or expense and (c) it has undertaken its own independent  analysis of the
investment in the Class [A-PO][B-4][B-5][B-6]  Certificates.  The Purchaser will
not use or disclose any  information it receives in connection with its purchase
of the Class [A-PO][B-4][B-5][B-6]  Certificates other than in connection with a
subsequent sale of Class [A-PO][B-4][B-5][B-6] Certificates.

            (e)   Either (i) the  Purchaser  is not an employee  benefit plan or
other  retirement  arrangement  subject  to Title I of the  Employee  Retirement
Income  Security  Act of 1974,  as amended,  ("ERISA"),  or Section  4975 of the
Internal Revenue Code of 1986, as amended (the "Code"),  or a governmental plan,
as defined in Section 3(32) of ERISA subject to any federal,  state or local law
("Similar  Law")  which is,  to a  material  extent,  similar  to the  foregoing
provisions  of ERISA or the Code  (collectively,  a "Plan"),  an agent acting on
behalf of a Plan, or a person  utilizing the assets of a Plan or (ii) [for Class
[B-4][B-5][B-6] Certificates only] if the Purchaser is an insurance company, (A)
the source of funds used to purchase the Class [B-4][B-5][B-6] Certificate is an
"insurance  company general account" (as such term is defined in Section V(e) of
Prohibited  Transaction Class Exemption 95-60 ("PTE 95-60"),  60 Fed. Reg. 35925
(July 12,  1995),  (B) there is no Plan with respect to which the amount of such
general  account's  reserves and liabilities  for the contract(s)  held by or on
behalf of such Plan and all other  Plans  maintained  by the same  employer  (or
affiliate  thereof as  defined  in Section  V(a)(1) of PTE 95-60) or by the same
employee  organization  exceeds 10% of the total of all reserves and liabilities
of such general  account (as such amounts are  determined  under Section I(a) of
PTE 95-60) at the date of  acquisition  and (C) the purchase and holding of such
Class  [B-4][B-5][B-6]  Certificates  are  covered by  Sections I and III of PTE
95-60  or  (iii)  the  Purchaser  has  provided  (a) a  "Benefit  Plan  Opinion"
satisfactory to the Seller and the Trust  Administrator  of the Trust Estate and
(b) such other opinions of counsel, officers' certificates and agreements as the
Seller or the Master  Servicer may have  required.  A Benefit Plan Opinion is an
opinion of counsel to the effect that the proposed  transfer  will not cause the
assets of the Trust  Estate to be regarded  as "plan  assets" and subject to the
prohibited transaction provisions of ERISA, the Code or Similar Law and will not
subject the Trust Administrator,  the Trustee, the Seller or the Master Servicer
to any  obligation in addition to those  undertaken in the Pooling and Servicing
Agreement  (including any liability for civil  penalties or excise taxes imposed
pursuant to ERISA, Section 4975 of the Code or Similar Law).

            (f)   If the  Purchaser is a depository  institution  subject to the
jurisdiction of the Office of the Comptroller of the Currency ("OCC"), the Board
of  Governors  of the  Federal  Reserve  System  ("FRB"),  the  Federal  Deposit
Insurance Corporation ("FDIC"),  the Office of Thrift Supervision ("OTS") or the
National Credit Union  Administration  ("NCUA"),  the Purchaser has reviewed the
"Supervisory  Policy Statement on Securities  Activities" dated January 28, 1992
of the Federal Financial Institutions  Examination Council and the June 15, 1994
Interim  Revision  thereto as adopted by the OCC, FRB,  FDIC, OTS and NCUA (with
modifications  as  applicable),  as  appropriate,  other  applicable  investment
authority,  rules, supervisory policies and guidelines of these agencies and, to
the extent  appropriate,  state banking  authorities  and has concluded that its
purchase  of  the  Class  [A-PO][B-4][B-5][B-6]  Certificates  is in  compliance
therewith.

            Section 3.  Transfer of Class [A-PO][B-4][B-5][B-6] Certificates.

            (a)   The Purchaser understands that the Class [A-PO][B-4][B-5][B-6]
Certificates  have not been  registered  under the  Securities  Act of 1933 (the
"Act") or any state  securities laws and that no transfer may be made unless the
Class  [A-PO][B-4][B-5][B-6]  Certificates  are  registered  under  the  Act and
applicable state law or unless an exemption from registration is available.  The
Purchaser further  understands that neither the Seller,  the Master Servicer nor
the  Trust   Administrator  is  under  any  obligation  to  register  the  Class
[A-PO][B-4][B-5][B-6]  Certificates or make an exemption available. In the event
that such a transfer is to be made in reliance upon an exemption from the Act or
applicable state securities laws, (i) the Trust  Administrator shall require, in
order  to  assure  compliance  with  such  laws,  that  the  Certificateholder's
prospective  transferee certify to the Seller and the Trust  Administrator as to
the factual basis for the registration or  qualification  exemption relied upon,
and (ii) unless the transferee is a "Qualified  Institutional  Buyer" within the
meaning of Rule 144A of the Act, the Trust  Administrator  or the Seller may, if
such  transfer is made within three years from the later of (a) the Closing Date
or (b) the last date on which the Seller or any  affiliate  thereof was a holder
of the  Certificates  proposed to be transferred,  require an Opinion of Counsel
that such transfer may be made  pursuant to an exemption  from the Act and state
securities  laws,  which Opinion of Counsel shall not be an expense of the Trust
Administrator,  the Master  Servicer or the Seller.  Any such  Certificateholder
desiring to effect such transfer shall,  and does hereby agree to, indemnify the
Trustee, the Trust Administrator,  the Master Servicer,  any Paying Agent acting
on behalf of the Trust  Administrator  and the Seller against any liability that
may result if the  transfer is not so exempt or is not made in  accordance  with
such federal and state laws.

            (b)   No transfer of a Class [A-PO][B-4][B-5][B-6] Certificate shall
be made unless the  transferee  provides the Seller and the Trust  Administrator
with a Transferee's Letter, substantially in the form of this Agreement.

            (c)   The     Purchaser      acknowledges     that     its     Class
[A-PO][B-4][B-5][B-6]  Certificates  bear a legend  setting forth the applicable
restrictions on transfer.



<PAGE>




            IN WITNESS WHEREOF,  the undersigned has caused this Agreement to be
validly  executed by its duly  authorized  representative  as of the day and the
year first above written.


                                       [PURCHASER]



                                       By:
                                          ---------------------------------



                                       Its:
                                           --------------------------------



<PAGE>






                                    EXHIBIT K






                      NORWEST ASSET SECURITIES CORPORATION

                       MORTGAGE PASS-THROUGH CERTIFICATES
                                 SERIES 1999-18
                CLASS [A-9] [A-22] [B-1] [B-2] [B-3] CERTIFICATES

                               TRANSFEREE'S LETTER




                                                     ---------------- --, ----

First Union National Bank
230 South Tryon Street
Charlotte, North Carolina 28288

Norwest Asset Securities Corporation
7485 New Horizon Way
Frederick, Maryland 21703

            The undersigned (the "Purchaser") proposes to purchase Norwest Asset
Securities Corporation Mortgage Pass-Through Certificates, Series 1999-18, Class
[A-9]   [A-22]   [B-1][B-2][B-3]   Certificates   (the   "Class   [A-9]   [A-22]
[B-1][B-2][B-3] Certificates") in the principal amount of $___________. In doing
so, the Purchaser hereby acknowledges and agrees as
follows:

            Section 1.  Definitions.  Each  capitalized term used herein and not
otherwise  defined  herein shall have the meaning  ascribed to it in the Pooling
and Servicing  Agreement,  dated as of June 29, 1999 (the "Pooling and Servicing
Agreement")  among  Norwest  Asset  Securities   Corporation,   as  seller  (the
"Seller"), Norwest Bank Minnesota, National Association, as master servicer (the
"Master  Servicer"),  First Union  National  Bank, as trust  administrator  (the
"Trust  Administrator")  and the United  States  Trust  Company of New York,  as
trustee  (the  "Trustee")  of  Norwest  Asset  Securities  Corporation  Mortgage
Pass-Through Certificates, Series 1999-18.

            Section 2.  Representations  and  Warranties  of the  Purchaser.  In
connection with the proposed transfer,  the Purchaser represents and warrants to
the Seller, the Master Servicer and the Trust Administrator that:

            Either (i) the  Purchaser  is not an employee  benefit plan or other
retirement  arrangement  subject to Title I of the  Employee  Retirement  Income
Security  Act of 1974,  as amended,  ("ERISA"),  or Section 4975 of the Internal
Revenue Code of 1986,  as amended  (the  "Code"),  or a  governmental  plan,  as
defined in Section  3(32) of ERISA  subject to any  federal,  state or local law
("Similar  Law")  which is,  to a  material  extent,  similar  to the  foregoing
provisions  of ERISA or the Code  (collectively,  a "Plan"),  an agent acting on
behalf  of a Plan,  or a person  utilizing  the  assets of a Plan or (ii) if the
Purchaser is an insurance company,  (A) the source of funds used to purchase the
Class [A-9] [A-22] [B-1][B-2][B-3]  Certificate is an "insurance company general
account"  (as such term is  defined in Section  V(e) of  Prohibited  Transaction
Class  Exemption  95-60 ("PTE 95-60"),  60 Fed. Reg. 35925 (July 12, 1995),  (B)
there is no Plan with  respect  to which the  amount of such  general  account's
reserves and liabilities  for the contract(s)  held by or on behalf of such Plan
and all other Plans  maintained by the same  employer (or  affiliate  thereof as
defined in Section  V(a)(1) of PTE 95-60) or by the same employee  organization,
exceed 10% of the total of all reserves and  liabilities of such general account
(as such amounts are determined  under Section I(a) of PTE 95-60) at the date of
acquisition  and  (C) the  purchase  and  holding  of such  Class  [A-9]  [A-22]
[B-1][B-2][B-3]  Certificates  are covered by Sections I and III of PTE 95-60 or
(iii) the Purchaser has provided (a) a "Benefit  Plan Opinion"  satisfactory  to
the Seller and the Trust  Administrator  of the Trust  Estate and (b) such other
opinions of counsel,  officers' certificates and agreements as the Seller or the
Master  Servicer  may have  required.  A Benefit  Plan  Opinion is an opinion of
counsel to the effect that the  proposed  transfer  will not cause the assets of
the Trust Estate to be regarded as "plan  assets" and subject to the  prohibited
transaction  provisions  of ERISA,  the Code or Similar Law and will not subject
the Trust  Administrator,  the Trustee, the Seller or the Master Servicer to any
obligation  in  addition  to  those  undertaken  in the  Pooling  and  Servicing
Agreement  (including any liability for civil  penalties or excise taxes imposed
pursuant to ERISA, Section 4975 of the Code or Similar Law).

            IN WITNESS WHEREOF,  the undersigned has caused this Agreement to be
validly  executed by its duly  authorized  representative  as of the day and the
year first above written.


                                       [PURCHASER]



                                       By:
                                          --------------------------------



                                       Its:
                                           -------------------------------


                                       [Reserved]



<PAGE>






                                    EXHIBIT L

                              SERVICING AGREEMENTS

                   Norwest Mortgage, Inc. Servicing Agreement

              First Union Mortgage Corporation Servicing Agreement

              Merrill Lynch Credit Corporation Servicing Agreement

                         Bank United Servicing Agreement

                   SunTrust Mortgage, Inc. Servicing Agreement

                Countrywide Home Loans, Inc. Servicing Agreement

                 NOVUS Financial Corporation Servicing Agreement

               The Huntington Mortgage Company Servicing Agreement

               National City Mortgage Company Servicing Agreement

                    FT Mortgage Companies Servicing Agreement

                   Hibernia National Bank Servicing Agreement

                      HomeSide Lending Servicing Agreement

                    Plymouth Savings Bank Servicing Agreement

               Chase Manhattan Mortgage Corp. Servicing Agreement





<PAGE>








                                    EXHIBIT M

                      [FORM OF SPECIAL SERVICING AGREEMENT]

                 SPECIAL SERVICING AND COLLATERAL FUND AGREEMENT

            This  SPECIAL   SERVICING  AND   COLLATERAL   FUND   AGREEMENT  (the
"Agreement")  is made and entered into as of , between  Norwest Bank  Minnesota,
National Association (the "Company" and "Norwest Bank") and (the "Purchaser").

                              PRELIMINARY STATEMENT

             _____  is the  holder  of the  entire  interest  in  Norwest  Asset
Securities Corporation Mortgage Pass-Through Certificates, Series 1999-18, Class
____ (the "Class B Certificates"). The Class B Certificates were issued pursuant
to a Pooling and  Servicing  Agreement  dated as of June 29, 1999 among  Norwest
Asset Securities Corporation, as seller (the "Seller"),  Norwest Bank Minnesota,
National  Association,  as Master Servicer,  First Union National Bank, as Trust
Administrator, and United States Trust Company of New York, as Trustee.
 intends to resell all of the Class B Certificates  directly to the Purchaser on
or promptly after the date hereof.

            In connection  with such sale,  the parties  hereto have agreed that
the  Company  will cause,  to the extent that the Company as Master  Servicer is
granted  such  authority  in  the  related  Servicing  Agreements,  the  related
servicers  (each a related  "Servicer"),  which service the Mortgage Loans which
comprise  the Trust  Estate  related to the above  referenced  series  under the
related servicing agreements (each a related "Servicing  Agreement"),  to engage
in certain special servicing procedures relating to foreclosures for the benefit
of the Purchaser, and that the Purchaser will deposit funds in a collateral fund
to cover any losses  attributable to such procedures as well as all advances and
costs in connection therewith, as set forth herein.

            In  consideration of the mutual  agreements  herein  contained,  the
receipt and  sufficiency of which are hereby  acknowledged,  the Company and the
Purchaser agree that the following  provisions  shall become effective and shall
be binding on and enforceable by the Company and the Purchaser:

                                    ARTICLE I

                                   DEFINITIONS

            Section 1.01 Defined Terms.

            Whenever used in this  Agreement,  the following  words and phrases,
unless the context otherwise requires, shall have the following meanings:

            Business  Day: Any day other than (i) a Saturday or a Sunday or (ii)
a day on which  banking  institutions  in the State of New York are  required or
authorized by law or executive order to be closed.

            Collateral Fund: The fund  established and maintained  pursuant to
Section 3.01 hereof.

            Collateral Fund Permitted Investments: Either (i) obligations of, or
obligations fully guaranteed as to principal and interest by, the United States,
or any agency or instrumentality  thereof,  provided such obligations are backed
by the full faith and  credit of the United  States,  (ii) a money  market  fund
rated in the highest rating  category by a nationally  recognized  rating agency
selected by the Company,  (iii) cash,  (iv) mortgage  pass-through  certificates
issued or guaranteed by Government National Mortgage Association, FNMA or FHLMC,
(v) commercial paper (including both  non-interest-bearing  discount obligations
and interest-bearing  obligations payable on demand or on a specified date), the
issuer of which may be an affiliate  of the Company,  having at the time of such
investment a rating of at least A-1 by Standard  and Poor's  ("S&P") or at least
D-1 by Duff & Phelps Credit Rating Co.  ("DCR") or (vi) demand and time deposits
in,  certificates  of deposit of, any  depository  institution  or trust company
(which may be an affiliate of the  Company)  incorporated  under the laws of the
United  States of America or any state  thereof and subject to  supervision  and
examination by federal and/or state banking authorities,  so long as at the time
of such investment  either (x) the long-term debt obligations of such depository
institution or trust company have a rating of at least AA by DCR or S&P, (y) the
certificate of deposit or other unsecured  short-term  debt  obligations of such
depository  institution or trust company have a rating of at least D-1 by DCR or
A-1 by S&P or (z) the  depository  institution  or trust  company is one that is
acceptable  to either DCR or S&P and,  for each of the  preceding  clauses  (i),
(iv), (v) and (vi), the maturity  thereof shall be not later than the earlier to
occur of (A) 30 days from the date of the  related  investment  and (B) the next
succeeding  Distribution  Date as defined in the related  Pooling and  Servicing
Agreement.

            Commencement  of  Foreclosure:  The first official  action  required
under local law in order to commence  foreclosure  proceedings  or to schedule a
trustee's  sale under a deed of trust,  including (i) in the case of a mortgage,
any filing or service of process  necessary to commence an action to  foreclose,
or (ii) in the case of a deed of  trust,  posting,  the  publishing,  filing  or
delivery of a notice of sale, but not including in either case (x) any notice of
default,  notice of intent to foreclose or sell or any other action prerequisite
to  the  actions  specified  in (i) or  (ii)  above,  (y)  the  acceptance  of a
deed-in-lieu  of foreclosure  (whether in connection  with a sale of the related
property or otherwise) or (z) initiation and completion of a short pay-off.

            Current Appraisal: With respect to any Mortgage Loan as to which the
Purchaser has made an Election to Delay Foreclosure, an appraisal of the related
Mortgaged  Property  obtained  by the  Purchaser  at its  own  expense  from  an
independent  appraiser  (which  shall  not be an  affiliate  of  the  Purchaser)
acceptable to the Company as nearly contemporaneously as practicable to the time
of  the  Purchaser's  election,   prepared  based  on  the  Company's  customary
requirements for such appraisals.

            Election to Delay  Foreclosure:  Any election by the  Purchaser to
delay  the  Commencement  of  Foreclosure,  made in  accordance  with  Section
2.02(b).

            Election to  Foreclose:  Any election by the  Purchaser to proceed
with the Commencement of Foreclosure, made in accordance with Section 2.03(a).

            Monthly  Advances:  Principal and interest  advances and servicing
advances including costs and expenses of foreclosure.

            Required  Collateral Fund Balance:  As of any date of determination,
an amount  equal to the  aggregate  of all  amounts  previously  required  to be
deposited in the Collateral Fund pursuant to Section  2.02(d) (after  adjustment
for all  withdrawals  and  deposits  pursuant  to Section  2.02(e))  and Section
2.03(b) (after  adjustment for all withdrawals and deposits  pursuant to Section
2.03(c)) and Section 3.02 to be reduced by all withdrawals therefrom pursuant to
Section 2.02(g) and Section 2.03(d).

            Section 1.02 Definitions Incorporated by Reference.

            All capitalized  terms not otherwise defined in this Agreement shall
have the meanings assigned in the Pooling and Servicing Agreement.

                                   ARTICLE II

                          SPECIAL SERVICING PROCEDURES

            Section 2.01 Reports and Notices.

            (a)   In  connection  with the  performance  of its duties under the
Pooling and  Servicing  Agreement  relating to the  realization  upon  defaulted
Mortgage  Loans,  the Company as Master  Servicer shall provide to the Purchaser
the following notices and reports:

            (i) Within  five  Business  Days after  each  Distribution  Date (or
      included in or with the monthly statements to Certificateholders  pursuant
      to the Pooling and Servicing Agreement), the Company, shall provide to the
      Purchaser a report,  using the same  methodology  and  calculations in its
      standard servicing reports,  indicating for the Trust Estate the number of
      Mortgage  Loans that are (A) thirty days,  (B) sixty days, (C) ninety days
      or more  delinquent or (D) in  foreclosure,  and  indicating for each such
      Mortgage Loan the loan number and outstanding principal balance.

            (ii) Prior to the Commencement of Foreclosure in connection with any
      Mortgage  Loan, the Company shall cause (to the extent that the Company as
      Master  Servicer  is  granted  such  authority  in the  related  Servicing
      Agreement)  the Servicer to provide the  Purchaser  with a notice (sent by
      telecopier)  of such proposed and imminent  foreclosure,  stating the loan
      number and the aggregate amount owing under the Mortgage Loan. Such notice
      may be  provided  to the  Purchaser  in the  form of a copy of a  referral
      letter from such Servicer to an attorney  requesting  the  institution  of
      foreclosure.

            (b)   If requested  by the  Purchaser,  the Company  shall cause the
Servicer  (to the extent  that the Company as Master  Servicer  is granted  such
authority in the related  Servicing  Agreement) to make its servicing  personnel
available  (during  their  normal  business  hours)  to  respond  to  reasonable
inquiries,  by phone or in writing by facsimile,  electronic,  or overnight mail
transmission,  by the Purchaser in connection  with any Mortgage Loan identified
in a report under  subsection (a) (i) (B), (a) (i) (C), (a) (i) (D), or (a) (ii)
which has been given to the Purchaser;  provided,  that (1) the related Servicer
shall only be required to provide  information that is readily accessible to its
servicing personnel and is  non-confidential  and (2) the related Servicer shall
respond   within  five   Business   Days  orally  or  in  writing  by  facsimile
transmission.

            (c)   In addition  to the  foregoing,  the  Company  shall cause the
Servicer  (to the extent  that the Company as Master  Servicer  is granted  such
authority in the related  Servicing  Agreement) to provide to the Purchaser such
information as the Purchaser may reasonably request provided, however, that such
information  is consistent  with normal  reporting  practices,  concerning  each
Mortgage  Loan that is at least ninety days  delinquent  and each  Mortgage Loan
which has become  real estate  owned,  through  the final  liquidation  thereof;
provided,   that  the  related  Servicer  shall  only  be  required  to  provide
information  that  is  readily  accessible  to its  servicing  personnel  and is
non-confidential  provided,  however,  that the  Purchaser  will  reimburse  the
Company and the related Servicer for any out of pocket expenses.

            Section 2.02 Purchaser's Election to Delay Foreclosure Proceedings.

            (a)   The Purchaser  shall be deemed to direct the Company to direct
(to the extent that the Company as Master  Servicer is granted such authority in
the related Servicing Agreement) the related Servicer that in the event that the
Company does not receive written notice of the Purchaser's  election pursuant to
subsection (b) below within 24 hours (exclusive of any intervening  non-Business
Days) of  transmission  of the notice provided by the Company under Section 2.01
(a) (ii)  subject to  extension  as set forth in Section  2.02(b),  the  related
Servicer may proceed with the  Commencement  of  Foreclosure  in respect of such
Mortgage Loan in accordance with its normal foreclosure policies without further
notice  to the  Purchaser.  Any  foreclosure  that  has  been  initiated  may be
discontinued  (i) without  notice to the Purchaser if the Mortgage Loan has been
brought  current or if a refinancing  or  prepayment  occurs with respect to the
Mortgage  Loan  (including  by means of a short  payoff  approved by the related
Servicer) or (ii) if the related Servicer has reached the terms of a forbearance
agreement  with the  borrower.  In the latter  case,  the related  Servicer  may
complete such forbearance agreement unless instructed otherwise by the Purchaser
within two Business Days notification.

            (b)   In  connection  with any Mortgage Loan with respect to which a
notice under Section 2.01(a)(ii) has been given to the Purchaser,  the Purchaser
may elect to instruct  the  Company to cause,  to the extent that the Company as
Master  Servicer is granted such authority in the related  Servicing  Agreement,
the related Servicer to delay the Commencement of Foreclosure until such time as
the  Purchaser  determines  that  the  related  Servicer  may  proceed  with the
Commencement of  Foreclosure.  Such election must be evidenced by written notice
received  within 24 hours  (exclusive of any intervening  non-Business  Days) of
transmission  of the notice  provided by the Company under Section  2.01(a)(ii).
Such 24 hour period  shall be extended  for no longer  than an  additional  four
Business Days after the receipt of the  information  if the  Purchaser  requests
additional information related to such foreclosure;  provided, however, that the
Purchaser  will have at least  one  Business  Day to  respond  to any  requested
additional  information.  Any such additional information shall be provided only
to the extent it (i) is not confidential in nature and (ii) is obtainable by the
related  Servicer  from  existing  reports,  certificates  or  statements  or is
otherwise readily  accessible to its servicing  personnel.  The Purchaser agrees
that it has no right to deal with the mortgagor during such period.  However, if
such servicing activities include acceptance of a deed-in-lieu of foreclosure or
short  payoff,  the  Purchaser  will be notified and given two Business  Days to
respond.

            (c)   With  respect to any Mortgage  Loan as to which the  Purchaser
has made an Election to Delay Foreclosure,  the Purchaser shall obtain a Current
Appraisal  as soon as  practicable,  but in no event more than 15 business  days
thereafter, and shall provide the Company with a copy of such Current Appraisal.

            (d)   Within  two  Business  Days of making  any  Election  to Delay
Foreclosure,  the  Purchaser  shall remit by wire  transfer to the Company,  for
deposit in the Collateral Fund, an amount,  as calculated by the Company,  equal
to the sum of (i) 125% of the  greater  of the unpaid  principal  balance of the
Mortgage  Loan and the  value  shown in the  Current  Appraisal  referred  to in
subsection  (c) above (or, if such Current  Appraisal has not yet been obtained,
the Company's  estimate  thereof,  in which case the required deposit under this
subsection  shall be adjusted upon obtaining such Current  Appraisal),  and (ii)
three months' interest on the Mortgage Loan at the applicable  Mortgage Interest
Rate.  If any  Election to Delay  Foreclosure  extends for a period in excess of
three  months  (such  excess  period  being  referred  to herein as the  "Excess
Period"), within two Business Days the Purchaser shall remit by wire transfer in
advance to the  Company for  deposit in the  Collateral  Fund the amount of each
additional month's interest, as calculated by the Company,  equal to interest on
the  Mortgage  Loan at the  applicable  Mortgage  Interest  Rate for the  Excess
Period. The terms of this Agreement will no longer apply to the servicing of any
Mortgage  Loan upon the  failure of the  Purchaser  to deposit  any of the above
amounts  relating to the Mortgage  Loan within two Business Days of the Election
to Delay  Foreclosure  or within two Business  Days of the  commencement  of the
Excess Period subject to Section 3.01.

            (e)   With  respect to any Mortgage  Loan as to which the  Purchaser
has made an Election to Delay  Foreclosure,  the Company may  withdraw  from the
Collateral  Fund from time to time amounts  necessary  to reimburse  the related
Servicer for all related Monthly  Advances and Liquidation  Expenses  thereafter
made by such Servicer in accordance with the Pooling and Servicing Agreement and
the  related  Servicing  Agreement.  To the  extent  that the amount of any such
Liquidation  Expenses is determined by the Company based on estimated costs, and
the actual  costs are  subsequently  determined  to be higher,  the  Company may
withdraw the additional  amount from the Collateral  Fund. In the event that the
Mortgage Loan is brought current by the mortgagor and the foreclosure  action is
discontinued,  the  amounts  so  withdrawn  from the  Collateral  Fund  shall be
redeposited if and to the extent that  reimbursement  therefor from amounts paid
by the  mortgagor  is not  prohibited  pursuant  to the  Pooling  and  Servicing
Agreement  or the related  Servicing  Agreement,  applicable  law or the related
mortgage note. Except as provided in the preceding  sentence,  amounts withdrawn
from the  Collateral  Fund to cover Monthly  Advances and  Liquidation  Expenses
shall not be redeposited  therein or otherwise  reimbursed to the Purchaser.  If
and when any such Mortgage Loan is brought current by the mortgagor, all amounts
remaining  in the  Collateral  Fund in  respect  of such  Mortgage  Loan  (after
adjustment  for  all  permitted   withdrawals  and  deposits  pursuant  to  this
subsection) shall be released to the Purchaser.

            (f)   With  respect to any Mortgage  Loan as to which the  Purchaser
has made an Election to Delay  Foreclosure,  the related Servicer shall continue
to service the Mortgage Loan in accordance with its customary  procedures (other
than the delay in Commencement of Foreclosure as provided  herein).  If and when
the Purchaser  shall notify the Company that it believes that it is  appropriate
to do so, the related Servicer may proceed with the Commencement of Foreclosure.
In any event,  if the Mortgage  Loan is not brought  current by the mortgagor by
the time the loan becomes 6 months delinquent, the Purchaser's election shall no
longer be effective  and at the  Purchaser's  option,  either (i) the  Purchaser
shall  purchase  the Mortgage  Loan from the related  Trust Estate at a purchase
price equal to the fair market  value as shown on the Current  Appraisal,  to be
paid by (x) applying any balance in the Collateral Fund to such to such purchase
price, and (y) to the extent of any deficiency,  by wire transfer of immediately
available  funds from the  Purchaser  to the  Company for deposit in the related
Certificate  Account;  or (ii)  the  related  Servicer  shall  proceed  with the
Commencement of Foreclosure.

            (g)   Upon the  occurrence  of a  liquidation  with  respect  to any
Mortgage  Loan as to which the Purchaser  made an Election to Delay  Foreclosure
and as to  which  the  related  Servicer  proceeded  with  the  Commencement  of
Foreclosure in accordance with subsection (f) above, the Company shall calculate
the amount, if any, by which the value shown on the Current  Appraisal  obtained
under  subsection  (c) exceeds the actual  sales price  obtained for the related
Mortgaged Property (net of Liquidation  Expenses and accrued interest related to
the extended  foreclosure  period), and the Company shall withdraw the amount of
such excess from the Collateral  Fund,  shall remit the same to the Trust Estate
and in its  capacity as Master  Servicer  shall apply such amount as  additional
Liquidation  Proceeds  pursuant to the Pooling and  Servicing  Agreement.  After
making such withdrawal,  all amounts remaining in the Collateral Fund in respect
of such  Mortgage  Loan (after  adjustment  for all  permitted  withdrawals  and
deposits pursuant to this Agreement) shall be released to the Purchaser.

            Section   2.03   Purchaser's   Election  to   Commence   Foreclosure
Proceedings.

            (a)   In connection  with any Mortgage  Loan  identified in a report
under Section 2.01(a)(i)(B),  the Purchaser may elect to instruct the Company to
cause,  to the extent  that the  Company  as Master  Servicer  is  granted  such
authority in the related  Servicing  Agreement,  the related Servicer to proceed
with the Commencement of Foreclosure as soon as practicable.  Such election must
be evidenced by written  notice  received by the Company by 5:00 p.m.,  New York
City time, on the third Business Day following the delivery of such report under
Section 2.01(a)(i).

            (b)   Within two Business  Days of making any Election to Foreclose,
the Purchaser shall remit to the Company, for deposit in the Collateral Fund, an
amount,  as  calculated  by the  Company,  equal to 125% of the  current  unpaid
principal balance of the Mortgage Loan and three months interest on the Mortgage
Loan at the  applicable  Mortgage  Interest  Rate. If and when any such Mortgage
Loan is brought current by the mortgagor,  all amounts in the Collateral Fund in
respect of such Mortgage Loan (after  adjustment  for all permitted  withdrawals
and deposits  pursuant to this Agreement)  shall be released to the Purchaser if
and to the extent that reimbursement therefor from amounts paid by the mortgagor
is not prohibited pursuant to the Pooling and Servicing Agreement or the related
Servicing  Agreement,  applicable law or the related mortgage note. The terms of
this  Agreement  will no longer apply to the servicing of any Mortgage Loan upon
the  failure of the  Purchaser  to deposit  the above  amounts  relating  to the
Mortgage Loan within two Business  Days of the Election to Foreclose  subject to
Section 3.01.

            (c)   With  respect to any Mortgage  Loan as to which the  Purchaser
has made an  Election  to  Foreclose,  the related  Servicer  shall  continue to
service the Mortgage Loan in accordance  with its  customary  procedures  (other
than Commencement of Foreclosure as provided herein).  In connection  therewith,
the Company shall have the same rights to make  withdrawals for Monthly Advances
and Liquidations Expenses from the Collateral Fund as are provided under Section
2.02(e), and the Company shall make reimbursements thereto to the limited extent
provided under such subsection in accordance with its customary procedures.  The
Company shall not be required to cause, to the extent that the Company as Master
Servicer is granted  such  authority  in the related  Servicing  Agreement,  the
related Servicer to proceed with the Commencement of Foreclosure if (i) the same
is stayed as a result of the  mortgagor's  bankruptcy or is otherwise  barred by
applicable  law, or to the extent that all legal  conditions  precedent  thereto
have not yet been complied with, or (ii) the Company  believes there is a breach
of representations or warranties by the Company, a Servicer,  or a Seller, which
may result in a repurchase or  substitution  of such Mortgage Loan, or (iii) the
Company or related Servicer  reasonably  believes the Mortgaged  Property may be
contaminated with or affected by hazardous wastes or hazardous  substances (and,
without  limiting  the  related   Servicer's  right  not  to  proceed  with  the
Commencement of Foreclosure, the Company supplies the Purchaser with information
supporting  such  belief).  Any  foreclosure  that  has  been  initiated  may be
discontinued  (x) without  notice to the Purchaser if the Mortgage Loan has been
brought  current or if a refinancing  or  prepayment  occurs with respect to the
Mortgage Loan  (including by means of a short payoff  approved by the Purchaser)
or (y) with  notice to the  Purchaser  if the related  Servicer  has reached the
terms of a forbearance  agreement unless  instructed  otherwise by the Purchaser
within two Business Days of such  notification.  Any such  instruction  shall be
based upon a decision that such forbearance  agreement is not in conformity with
reasonable servicing practices.

            (d)   Upon the  occurrence  of a  liquidation  with  respect  to any
Mortgage Loan as to which the Purchaser  made an Election to Foreclose and as to
which the related  Servicer  proceeded with the  Commencement  of Foreclosure in
accordance with subsection (c) above, the Company shall calculate the amount, if
any, by which the unpaid  principal  balance of the Mortgage Loan at the time of
liquidation  (plus  all  unreimbursed   interest  and  servicing   advances  and
Liquidation  Expenses  in  connection  therewith  other than those paid from the
Collateral  Fund)  exceeds  the actual  sales  price  obtained  for the  related
Mortgaged  Property,  and the Company  shall  withdraw the amount of such excess
from the  Collateral  Fund,  shall remit the same to the Trust Estate and in its
capacity as Master  Servicer  shall apply such amount as additional  Liquidation
Proceeds  pursuant to the Pooling and  Servicing  Agreement.  After  making such
withdrawal,  all amounts  remaining in the Collateral Fund (after adjustment for
all  withdrawals  and  deposits  pursuant to  subsection  (c) in respect of such
Mortgage Loan shall be released to the Purchaser.

            Section 2.04 Termination.

            (a)   With  respect  to all  Mortgage  Loans  included  in the Trust
Estate,  the Purchaser's  right to make any Election to Delay Foreclosure or any
Election to Foreclose  and the  Company's  obligations  under Section 2.01 shall
terminate (i) at such time as the Principal  Balance of the Class B Certificates
has been  reduced  to zero,  (ii) if the  greater  of (x) 43% (or such  lower or
higher percentage that represents the related  Servicer's actual historical loss
experience  with respect to the Mortgage Loans in the related pool as determined
by the Company) of the aggregate  principal  balance of all Mortgage  Loans that
are in  foreclosure or are more than 90 days  delinquent on a contractual  basis
and REO  properties  or (y) the  aggregate  amount  that the  Company  estimates
through the normal servicing  practices of the related Servicer will be required
to be withdrawn  from the  Collateral  Fund with respect to Mortgage Loans as to
which the Purchaser has made an Election to Delay  Foreclosure or an Election to
Foreclosure,  exceeds  (z) the  then-current  principal  balance  of the Class B
Certificates,  (iii) upon any transfer by the  Purchaser of any interest  (other
than the minority interest therein,  but only if the transferee provides written
acknowledgment  to the Company of the Purchaser's  right hereunder and that such
transferee will have no rights  hereunder) in the Class B Certificates  (whether
or not such transfer is registered  under the Pooling and Servicing  Agreement),
including any such transfer in connection with a termination of the Trust Estate
or (iv) upon any breach of the terms of this Agreement by the Purchaser.

            (b)   Except  as set  forth  in  2.04(a),  this  Agreement  and  the
respective  rights,  obligations and  responsibilities  of the Purchaser and the
Company  hereunder  shall  terminate  upon the  later to occur of (i) the  final
liquidation  of the  last  Mortgage  Loan as to  which  the  Purchaser  made any
Election to Delay Foreclosure or any Election to Foreclose and the withdrawal of
all remaining  amounts in the  Collateral  Fund as provided  herein and (ii) ten
Business Days' notice.  The  Purchaser's  right to make an election  pursuant to
Section 2.02 or Section 2.03 hereof with respect to a particular  Mortgage  Loan
shall terminate if the Purchaser fails to make any deposit required  pursuant to
Section  2.02(d) or 2.03(b) or if the Purchaser  fails to make any other deposit
to the Collateral Fund pursuant to this Agreement.

                                   ARTICLE III

                       COLLATERAL FUND; SECURITY INTEREST

            Section 3.01 Collateral Fund.

            Upon receipt from the Purchaser of the initial amount required to be
deposited  in the  Collateral  Fund  pursuant to Article  II, the Company  shall
establish and maintain with Bankers Trust Company as a segregated account on its
books and records an account (the  "Collateral  Fund"),  entitled  "Norwest Bank
Minnesota,  National  Association,  as  Master  Servicer,  for  the  benefit  of
registered holders of Norwest Asset Securities Corporation Mortgage Pass-Through
Certificates, Series 1999-18. Amounts held in the Collateral Fund shall continue
to be the  property of the  Purchaser,  subject to the first  priority  security
interest  granted  hereunder  for the benefit of the  Certificateholders,  until
withdrawn from the Collateral Fund pursuant to Section 2.02 or 2.03 hereof.  The
Collateral  Fund shall be an "outside  reserve  fund"  within the meaning of the
REMIC  Provisions,  beneficially  owned by the Purchaser for federal  income tax
purposes.  All income,  gain,  deduction or loss with respect to the  Collateral
Fund shall be that of the Purchaser.  All  distributions  from the Trust Fund to
the  Collateral  Fund shall be treated as  distributed  to the  Purchaser as the
beneficial owner thereof.

            Upon the  termination of this  Agreement and the  liquidation of all
Mortgage  Loans as to  which  the  Purchaser  has  made  any  Election  to Delay
Foreclosure  or any Election to Foreclose  pursuant to Section 2.04 hereof,  the
Company shall distribute or cause to be distributed to the Purchaser all amounts
remaining  in the  Collateral  Fund  (after  adjustment  for  all  deposits  and
permitted  withdrawals  pursuant to this Agreement) together with any investment
earnings  thereon.  In the event the  Purchaser  has made any  Election to Delay
Foreclosure  or any  Election to  Foreclose,  prior to any  distribution  to the
Purchaser  of  all  amounts  remaining  in the  Collateral  Fund,  funds  in the
Collateral Fund shall be applied consistent with the terms of this Agreement.

            Section 3.02 Collateral Fund Permitted Investments.

            The Company shall, at the written direction of the Purchaser, invest
the funds in the Collateral Fund in Collateral Fund Permitted Investments.  Such
direction shall not be changed more frequently than quarterly. In the absence of
any direction,  the Company shall select such investments in accordance with the
definition of Collateral Fund Permitted Investments in its discretion.

            All  income and gain  realized  from any  investment  as well as any
interest  earned on deposits in the  Collateral  Fund (net of any losses on such
investments)  and any  payments of principal  made in respect of any  Collateral
Fund  Permitted  Investment  shall be  deposited  in the  Collateral  Fund  upon
receipt.  All costs and realized losses associated with the purchase and sale of
Collateral  Fund Permitted  Investments  shall be borne by the Purchaser and the
amount  of net  realized  losses  shall be  deposited  by the  Purchaser  in the
Collateral Fund promptly upon realization.  The Company shall  periodically (but
not more  frequently  than monthly)  distribute to the Purchaser upon request an
amount of cash,  to the extent cash is  available  therefore  in the  Collateral
Fund,  equal to the amount by which the balance of the  Collateral  Fund,  after
giving effect to all other  distributions to be made from the Collateral Fund on
such  date,  exceeds  the  Required  Collateral  Fund  Balance.  Any  amounts so
distributed  shall be  released  from the lien  and  security  interest  of this
Agreement.

            Section 3.03 Grant of Security Interest.

            The  Purchaser  hereby  grants to the Company for the benefit of the
Certificateholders under the Pooling and Servicing Agreement a security interest
in and lien on all of the  Purchaser's  right,  title and interest,  whether now
owned or hereafter acquired, in and to: (1) the Collateral Fund, (2) all amounts
deposited in the Collateral  Fund and Collateral  Fund Permitted  Investments in
which such  amounts are  invested  (and the  distributions  and proceeds of such
investments)  and (3) all cash and  non-cash  proceeds of any of the  foregoing,
including  proceeds of the  voluntary  conversion  thereof (all of the foregoing
collectively, the "Collateral").

            The Purchaser  acknowledges the lien on and the security interest in
the Collateral for the benefit of the  Certificateholders.  The Purchaser  shall
take all actions  requested  by the Company as may be  reasonably  necessary  to
perfect the security interest created under this Agreement in the Collateral and
cause it to be prior to all other  security  interests and liens,  including the
execution  and  delivery  to the  Company  for filing of  appropriate  financing
statements in accordance with applicable law. The Company shall file appropriate
continuation  statements,  or  appoint  an  agent  on its  behalf  to file  such
statements, in accordance with applicable law.

            Section 3.04 Collateral Shortfalls.

            In the event that amounts on deposit in the  Collateral  Fund at any
time are  insufficient  to cover any  withdrawals  therefrom that the Company is
then entitled to make  hereunder,  the Purchaser  shall be obligated to pay such
amounts to the Company immediately upon demand. Such obligation shall constitute
a general corporate obligation of the Purchaser. The failure to pay such amounts
within two Business Days of such demand (except for amounts to cover interest on
a Mortgage  Loan  pursuant  to Sections  2.02(d)  and 2.03 (b)),  shall cause an
immediate  termination  of the  Purchaser's  right to make any Election to Delay
Foreclosure  or Election to Foreclose and the Company's  obligations  under this
Agreement  with  respect to all  Mortgage  Loans to which  such  insufficiencies
relate, without the necessity of any further notice or demand on the part of the
Company.

                                   ARTICLE IV

                            MISCELLANEOUS PROVISIONS

            Section 4.01 Amendment.

            This  Agreement  may be amended from time to time by the Company and
the Purchaser by written agreement signed by the Company and the Purchaser.

            Section 4.02 Counterparts.

            This  Agreement  may be  executed  simultaneously  in any  number of
counterparts,  each of which counterparts shall be deemed to be an original, and
such counterparts shall constitute but one and the same instrument.

            Section 4.03 Governing Law.

            This Agreement shall be construed in accordance with the laws of the
State  of New York and the  obligations,  rights  and  remedies  of the  parties
hereunder shall be determined in accordance with such laws.

            Section 4.04 Notices.

            All demands,  notices and direction hereunder shall be in writing or
by telecopy and shall be deemed effective upon receipt to:

            (a)   in the case of the Company,

                  Norwest Bank Minnesota, National Association
                  7485 New Horizon Way
                  Frederick, MD  21703

                  Attention:        Vice President, Master Servicing
                  Phone:      301-696-7800
                  Fax:  301-815-6365

            (b)   bin the case of the Purchaser,
                  ______________________________
                  ______________________________
                  ______________________________
                  ______________________________
                  Attention:____________________

            Section 4.05 Severability of Provisions.

            If any one or more of the covenants,  agreements, provision or terms
of this Agreement shall be for any reason whatsoever, including regulatory, held
invalid, then such covenants, agreements,  provisions or terms of this Agreement
and  shall  in no way  affect  the  validity  or  enforceability  of  the  other
provisions of this Agreement.

            Section 4.06 Successors and Assigns.

            The provisions of this Agreement  shall be binding upon and inure to
the benefit of the respective  successors and assigns of the parties hereto, and
all such  provisions  shall  inure  to the  benefit  of the  Certificateholders;
provided,  however,  that the rights under this Agreement  cannot be assigned by
the Purchaser without the consent of the Company.

            Section 4.07 Article and Section Headings.

            The article  and  section  headings  herein are for  convenience  of
reference only and shall not limit or otherwise affect the meaning hereof.

            Section 4.08 Confidentiality.

            The Purchaser  agrees that all information  supplied by or on behalf
of the Company pursuant to Sections 2.01 or 2.02,  including  individual account
information,  is the  property of the Company and the  Purchaser  agrees to hold
such information confidential and not to disclose such information.

            Each party hereto agrees that neither it, nor any officer, director,
employee,  affiliate or independent  contractor acting at such party's direction
will  disclose  the terms of  Section  4.09 of this  Agreement  to any person or
entity  other  than such  party's  legal  counsel  except  pursuant  to a final,
non-appealable  order of court,  the pendency of such order the other party will
have  received  notice of at least five business days prior to the date thereof,
or pursuant to the other party's prior express written consent.

            Section 4.09 Indemnification.

            The Purchaser agrees to indemnify and hold harmless the Company, the
Seller, and each Servicer and each person who controls the Company,  the Seller,
or a Servicer and each of their respective officers,  directors,  affiliates and
agents acting at the  Company's,  the Seller's,  or a Servicer's  direction (the
"Indemnified   Parties")  against  any  and  all  losses,   claims,  damages  or
liabilities  to which  they may be  subject,  insofar  as such  losses,  claims,
damages or  liabilities  (or  actions in respect  thereof)  arise out of, or are
based upon, actions taken by, or actions not taken by, the Company,  the Seller,
or a Servicer,  or on their behalf,  in accordance  with the  provisions of this
Agreement and (i) which actions conflict with the Company's,  the Seller's, or a
Servicer's  obligations under the Pooling and Servicing Agreement or the related
Servicing Agreement, or (ii) give rise to securities law liability under federal
or state securities laws with respect to the Certificates.  The Purchaser hereby
agrees to reimburse the  Indemnified  Parties for the reasonable  legal or other
expenses incurred by them in connection with investigating or defending any such
loss, claim, damage, liability or action. The indemnification obligations of the
Purchaser  hereunder  shall  survive  the  termination  or  expiration  of  this
Agreement.



<PAGE>




            IN WITNESS WHEREOF,  the Company and the Purchaser have caused their
names  to  be  signed  hereto  by  their  respective   officers  thereunto  duly
authorized, all as of the day and year first above written.


                                       Norwest Bank Minnesota, National
                                          Association



                                       By:
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                                       Name:
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                                       Title:
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                                       By:
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                                       Name:
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                                       Title:
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