NORWEST ASSET SEC CORP MORT PASS THR CERT SER 1999-15 TRUST
8-K, 1999-07-20
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: May 27, 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 May 27, 1999, Norwest Asset Securities  Corporation,  a Delaware  corporation
(the "Registrant"),  sold Mortgage  Pass-Through  Certificates,  Series 1999-15,
Class A-1,  Class A-2,  Class A-3, Class A-R, Class B-1, Class B-2 and Class B-3
(the "Offered Certificates"),  having an aggregate original principal balance of
$297,725,000.  The Offered  Certificates  were issued  pursuant to a Pooling and
Servicing  Agreement,  dated as of May 27, 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
1999-15, Class A-PO Certificates,  having an aggregate initial principal balance
of $1,387,557.72 and Class B-4, Class B-5 and Class B-6 Certificates,  having an
aggregate  initial  principal  balance of  $1,503,873.55  (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  99.04%  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 a REMIC for federal income
tax purposes (the  "REMIC").  The Class A-1,  Class A-2,  Class A-3, Class A-PO,
Class B-1, Class B-2, Class B-3, Class B-4, Class B-5 and Class B-6 Certificates
will  be  treated  as  "regular  interests"  in the  REMIC  and  the  Class  A-R
Certificate will be treated as the "residual interest" in the REMIC.



<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 May 27, 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


May 27, 1999


                             By: /s/ ALAN S. MCKENNEY
                                 -----------------------------
                                  Name:     Alan S. McKenney
                                  Title:    Vice President





<PAGE>




                                INDEX TO EXHIBITS


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

(EX-4)          Pooling and Servicing Agreement, dated as of         E
                May 27, 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.





================================================================================



                     NORWEST ASSET SECURITIES CORPORATION
                                   (Seller)




                 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 May 27, 1999




                                $300,616,431.27




                      Mortgage Pass-Through Certificates
                                Series 1999-15



================================================================================

<PAGE>


                                TABLE OF CONTENTS

                                                                            PAGE

                                    ARTICLE I

                                   DEFINITIONS

Section 1.01  Definitions....................................................
Section 1.02  Benefits of Headings and Table of Contents.....................
Section 1.03  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 and the Seller...................................
Section 4.05  Reports to Mortgagors and the Internal Revenue Service.........
Section 4.06  Calculation of Amounts; Binding Effect of Interpretations and
              Actions of Master Servicer.....................................

                                    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.............................
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...................................................
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......................................
<PAGE>


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-PO      -        Form of Face of Class A-PO Certificate
EXHIBIT A-R       -        Form of Face of Class A-R 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 1999-15 Certificates
EXHIBIT D         -        Reserved
EXHIBIT E         -        Custodial Agreement
EXHIBIT F-1       -        Schedule  of  Mortgage  Loans  Serviced  by  Norwest
                           Mortgage
EXHIBIT F-2       -        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   [B-1]  [B-2]  [B-3]
                           Certificates)
EXHIBIT L         -        Servicing Agreements
EXHIBIT M         -        Form of Special Servicing Agreement
SCHEDULE I        -        Applicable Unscheduled Principal Receipt Period


<PAGE>


            This  Pooling  and  Servicing  Agreement,  dated as of May 27,  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.

                        W I T N E S S E T H   T H A T:

            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.

            ADDITIONAL COLLATERAL: As defined in the MLCC Servicing Agreement.

            ADDITIONAL  COLLATERAL  MORTGAGE  LOANS:  As  defined  in the  MLCC
Servicing Agreement.

            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) 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.

            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.

            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
$100,000.00  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) 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.

            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.

            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 and Class A-3 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-PO  Certificates or
Class A-R 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-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).  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) 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-PO  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 A Interest Accrual Amount (determined without regard to clause (ii) of the
definition of each Interest Accrual Amount).

            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).

            CLASS  A  LOSS  DENOMINATOR:  As  to  any  Determination  Date,  an
amount equal to the Class A Non-PO Principal Balance.

            CLASS A LOSS PERCENTAGE:  As to any Determination Date and any Class
of  Class  A  Certificates   (other  than  the  Class  A-PO  Certificates)  then
outstanding, the percentage calculated by dividing the Principal Balance of such
Class by the Class A Loss  Denominator  (determined  without  regard to any such
Principal Balance of any Class of Class A Certificates 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 and (iii) 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 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 to any Distribution
Date, will be equal to the amount distributed pursuant to Paragraph third clause
(A) of Section 4.01(a).

            CLASS A PASS-THROUGH RATE: As to the Class A-1, Class A-2, Class A-3
and Class A-R Certificates,  the Class A Fixed Pass-Through Rate. The 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 May 2004, 100%. As to any Distribution  Date
subsequent to May 2004 to and including the  Distribution  Date in May 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 May 2005 to and  including  the  Distribution  Date in May 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 May 2006
to and including the Distribution Date in May 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 May 2007 to and
including the  Distribution  Date in May 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 May 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 May 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 June
2004 and May 2005 (2) 35% of the  Original  Class B  Principal  Balance  if such
Distribution  Date occurs  between and including June 2005 and May 2006, (3) 40%
of the  Original  Class B  Principal  Balance if such  Distribution  Date occurs
between and including  June 2006 and May 2007,  (4) 45% of the Original  Class B
Principal  Balance if such  Distribution  Date occurs between and including June
2007 and May 2008, and (5) 50% of the Original Class B Principal Balance if such
Distribution  Date  occurs  during  or after  June  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-PO  Certificates  and Class A-R
Certificate.

            CLASS A UNPAID INTEREST  SHORTFALL:  As to any Distribution Date and
any Class of Class A Certificates, the amount, if any, by which the aggregate of
the Class A Interest  Shortfall  Amounts  for such Class for prior  Distribution
Dates is in excess of the amounts  distributed in respect of such Class on prior
Distribution Dates pursuant to Paragraph second of Section 4.01(a).

            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-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)  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). 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  PASS-THROUGH  RATE: As to any  Distribution  Date,  6.250%
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).

            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)
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).

            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).

            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).

            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) 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).

            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).

            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).

            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)
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).

            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).

            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).

            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)
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).

            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).

            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).

            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)
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).

            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).

            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).

            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)
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).

            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  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.

            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.

            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
pursuant to Paragraph first of Section 4.01(a) 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) 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.

            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.

            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  representing  the principal  portion of the Cut-Off Date  Aggregate
Principal Balance evidenced by such Certificate.

            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 6.250%.

            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.

            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 a REMIC or
result in the imposition of any federal tax on the 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) 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) 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 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)  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) 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 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 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-PO,  Class A-R, Class B-1, Class
B-2, Class B-3, Class B-4, Class B-5 and Class B-6 Certificates is June 25, 2014
which corresponds to the "latest possible maturity date" for purposes of Section
860G(a)(1) of the Internal Revenue Code of 1986, as amended.

            FITCH:  Fitch IBCA, Inc. or its successor in interest.

            FIXED  RETAINED  YIELD:  The fixed  percentage  of  interest on each
Mortgage Loan with a Mortgage  Interest Rate greater than the sum of (a) 6.250%,
(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) 6.250%,  (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  $6,012,328.63  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.

            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.

            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-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 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  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  on or  after  the
Cross-Over Date pursuant to Section 4.02(e). The Class A-PO Certificates have no
Interest Accrual Amount.

            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).

            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.

            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.

            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  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.

            MONTH END INTEREST:  As defined in each Servicing Agreement.

            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 May 27, 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 and F-2, 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;

            (xv)   Fixed Retained Yield, if applicable; and

            (xvi)  for each Exhibit F-2 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 6.250%.

            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  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(f).

            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 initially by Norwest Mortgage.

            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 and  Class A-R
Certificates, as set forth in Section 11.06.

            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  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 Trustee,  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,  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 B  Certificate,  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 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.

            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.

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

June 1999 through May 2004......................              0%
June 2004 through May 2005......................             30%
June 2005 through May 2006......................             40%
June 2006 through May 2007......................             60%
June 2007 through May 2008......................             80%
June 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,  the Original Principal Balance of such Class. 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-PO  Certificates),  the
Original  Principal  Balance  of such  Class  less  the  sum of (a) all  amounts
previously  distributed in respect of such Class on prior Distribution Dates (i)
pursuant to Paragraph  third clause (A) of Section  4.01(a) and (ii) as a result
of a Principal  Adjustment and (b) the Realized  Losses  allocated  through such
Determination  Date to  such  Class  pursuant  to  Section  4.02(b).  After  the
Cross-Over  Date,  each such  Principal  Balance  will also be  reduced  on each
Determination  Date  by an  amount  equal  to the  product  of the  Class A Loss
Percentage  of such  Class  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.

            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) 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.

            PRIORITY AMOUNT:  For any  Distribution  Date, the lesser of (i) the
Principal  Balance  of the  Class A-3  Certificates  and (ii) the sum of (A) the
product of (1) the Priority  Percentage and (2) the Scheduled  Principal  Amount
and (B) the product of (1) the Priority  Percentage,  (2) the  Prepayment  Shift
Percentage and (3) the Unscheduled Principal Amount.

            PRIORITY  PERCENTAGE:   The  Principal  Balance  of  the  Class  A-3
Certificates divided by the Class A Non-PO Principal Balance.

            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.

            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  are Fitch and
S&P. The Rating Agency for the Class B-1,  Class B-2,  Class B-3,  Class B-4 and
Class B-5  Certificates is Fitch. 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 F-1+ in the case of Fitch, 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.

            RELEVANT ANNIVERSARY:  See "BANKRUPTCY LOSS AMOUNT."

            REMIC:  A "real estate  mortgage  investment  conduit" as defined in
Code Section 860D. "The REMIC" means the REMIC constituted by the Trust Estate.

            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.

            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.

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

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

            SCHEDULED  PRINCIPAL AMOUNT:  The sum for each outstanding  Mortgage
Loan (including each defaulted 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.

            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.

            SERVICER  MORTGAGE  LOAN FILE:  As defined in each of the  Servicing
Agreements.

            SERVICERS:  Each of Norwest Mortgage, Inc., SunTrust Mortgage, Inc.,
FT  Mortgage  Companies,  Merrill  Lynch  Credit  Corporation,  NOVUS  Financial
Corporation,  National  City  Mortgage  Company,  Bank  United,  The  Huntington
Mortgage Company,  First Union Mortgage Corporation and Cascade Bank 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:

            (A)   normal wear and tear;

            (B)   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

            (C)   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  $5,432,992.92  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.

            SURETY BOND: As defined in the MLCC Servicing Agreement.

            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 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  and property  which  secured a Mortgage Loan and which has
been acquired by foreclosure or deed in lieu of foreclosure.

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

            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 AMOUNT: The sum for each outstanding Mortgage
Loan (including each defaulted 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.

            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.

            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 Holders of each Class of
Certificates will collectively be entitled to the then applicable  percentage of
the aggregate Voting Interest represented by all Certificates 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. 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 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 additional Collateral Mortgage Loan and (e) 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 than180 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, has executed and delivered to or upon the order
of the Seller, in exchange for the Mortgage Loans together with all other assets
included  in the  definition  of  "Trust  Estate,"  receipt  of which is  hereby
acknowledged,  Certificates in authorized denominations which 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-R  Certificate)  and the Classes of Class B Certificates
as classes of "regular  interests"  and the Class A-R  Certificate as the single
class of  "residual  interest"  in the 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 the REMIC within the meaning of Code Section 860G(a)(9).
The "latest  possible  maturity  date" of the regular  interests in the REMIC is
June 25, 2014 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 or any amounts  received by it upon
the sale of any  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
any  amounts  received  pursuant to the 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
the Trust  Estate 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 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  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  Trust  Estate  of REMIC  status  for  federal  income  tax
purposes  or (iii)  the  imposition  of any  Prohibited  Transaction  Tax or any
federal taxes on the 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 REMIC.

            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 the
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 a REMIC or subject the 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) 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) 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,  pro rata, based upon
their  respective  Interest  Accrual  Amounts,  in an aggregate amount up to the
Class A Interest Accrual Amount with respect to such Distribution Date;

            second, to the Classes of Class A Certificates, pro rata, based upon
their respective Class A Unpaid Interest  Shortfalls,  in an aggregate amount up
to the Aggregate Class A Unpaid Interest Shortfall;

            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.

            Notwithstanding  the foregoing,  after the Principal  Balance of any
Class  (other than the Class A-R  Certificate)  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,  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-R
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-PO
Certificates)  and any  Class of  Class B  Certificates  with a lower  numerical
designation pro rata based on their outstanding Principal Balances.

            (b) 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 Classes of Class A
Certificates  (other than the Principal Balance of the Class A-PO  Certificates)
in accordance with the following priorities:

            concurrently,

            (i) 82.9477245444%, sequentially, as follows:

            first,  to the Class A-R  Certificate,  until the Principal  Balance
thereof has been reduced to zero; and

            second, to the Class A-1  Certificates,  until the Principal Balance
thereof has been reduced to zero; and

            (ii) 17.0522754556%, sequentially, as follows:

            first, to the Class A-3 Certificates,  up to the Priority Amount for
such Distribution Date;

            second, to the Class A-2  Certificates,  until the Principal Balance
thereof has been reduced to zero; and

            third, to the Class A-3 Certificates, without regard to the Priority
Amount for such Distribution  Date, until the Principal Balance thereof has been
reduced to zero;

            (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) (i) 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:

            (A)   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

            (B)   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

            (C)   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

            (D)   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

            (E)   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) 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 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(e)  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
11.23,  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 and the Class B Distribution Amount with respect to each such Class
of Class B Certificates.

            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-R Certificate) or the Principal  Balance of any Class of
Class B Certificates  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).

            (f) 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(f)  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 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-PO Certificates) 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 (ii) the Class B  Certificates,  pro rata based on the
Class A Interest  Accrual Amount 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 shall be allocated
among the  outstanding  Classes of Class A  Certificates  based on their Class A
Interest  Percentages.  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
based on their Class A Interest Percentages.

            (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.

            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 AND THE SELLER.

            Concurrently with each distribution pursuant to Section 4.01(e), 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  and the Seller 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) 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) the Class A-PO Deferred Amount, if any; and

               (xxiv) 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  Certificate)  with a $1,000  Denomination,  and as a
dollar amount per Class A-R 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.  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
Trustee  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      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.

<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-PO and
Class A-R Certificates,  integral multiples of $1,000 in excess thereof (except,
if necessary, for one Certificate of each Class (other than Class A-PO and Class
A-R  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),  and shall be
substantially in the respective forms set forth as Exhibits A-1, A-2, A-3, A-PO,
A-R, 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  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-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  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 B  Certificates
only, if such transferee is an insurance  company,  (A) the source of funds used
to purchase the 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 B  Certificates  are
covered by Sections I and III of PTE 95-60 or (ii) in the case of any such 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-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-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  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
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 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  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  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  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
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  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  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  Certificate  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  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
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 the Class A-R  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 Certificate, and (ii) the Master Servicer agrees to furnish to the
Internal  Revenue  Service and to any transferor of the Class A-R 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 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 or (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,  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.  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;  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; or

               (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; or

               (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; or

               (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; or

               (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)
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 the REMIC to federal, state or
local tax or cause the Trust Estate 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 a REMIC;  or (ii) cause the imposition of any federal,
state or local  income,  prohibited  transaction,  contribution  or other tax on
either the 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
Trustee,  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 using a calendar year
as the taxable year for the REMIC and the accrual method of accounting;  (ii) in
the  first  such  federal  tax  return,  make,  or cause  to be made,  elections
satisfying  the  requirements  of the REMIC  Provisions,  on behalf of the Trust
Estate,  to treat  the Trust  Estate  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 REMIC, 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 SS-4 and 8811 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  REMIC,  including  but not  limited  to the  income,  expenses,  individual
Mortgage Loans  (including REO Mortgage  Loans,  other assets and liabilities of
the REMIC,  and the fair market value and adjusted  basis of the REMIC  property
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 the REMIC within
the meaning of Code Section  860D(a)(2) other than the interests  represented by
the Class A-1, Class A-2, Class A-3, Class A-PO and Class A-R  Certificates  and
the  Class  B-1,  Class  B-2,  Class  B-3,  Class  B-4,  Class B-5 and Class B-6
Certificates; (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 Trust  Estate  or the REMIC to tax or (c) cause the Trust  Estate to
fail to qualify as a REMIC; (ix) exercise reasonable care not to allow the 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
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
REMIC,  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 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  Certificateholder  for such
purpose (or if the Master Servicer is not so permitted,  the Holder of the Class
A-R  Certificate  shall be a tax  matters  person 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 REMIC are to sign the tax returns referred to in clause (i) of the second
preceding  sentence and 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 REMIC as described  above.  In the event that
the Trust Administrator prepares any of the federal, state and local tax returns
of the 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 Certificate,  the amounts, if any, which remain on
deposit in the Certificate  Account (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.  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  the REMIC to federal tax or cause the
Trust Estate to fail to qualify as a REMIC 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 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 return of the 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,  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 a REMIC
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 or the 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 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,
(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
Trust Estate or the 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 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 the REMIC to tax or cause the Trust
Estate  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  or the  Trustee;
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 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 and (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.  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 .

            (a) The Trust  Administrator shall give prompt notice to each Rating
Agency 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 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:

            (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 6.250% per annum.

            SECTION 11.02     CUT-OFF DATE.

            The Cut-Off Date for the Certificates is May 1, 1999.

            SECTION 11.03     CUT-OFF DATE AGGREGATE PRINCIPAL BALANCE.

            The Cut-Off Date Aggregate Principal Balance is $300,616,431.27.

            SECTION 11.04     ORIGINAL CLASS A PERCENTAGE.

            The Original Class A Percentage is 97.99054367%.

            Section 11.05     ORIGINAL  PRINCIPAL  BALANCES  OF THE CLASSES OF
                              CLASS A CERTIFICATES.

            As to the following  Classes of Class A Certificates,  the Principal
Balance of such Class as of the Cut-Off Date, as follows:



                                  Original
            Class                 Principal Balance
            -----                 -----------------

            Class A-1              $243,215,900.00
            Class A-2               $40,000,000.00
            Class A-3               $10,000,000.00
            Class A-PO               $1,387,557.72
            Class A-R                      $100.00

            SECTION 11.06     ORIGINAL CLASS A NON-PO PRINCIPAL BALANCE.

            The Original Class A Non-PO Principal Balance is $293,216,000.00.

            SECTION 11.07     ORIGINAL SUBORDINATED PERCENTAGE.

            The Original Subordinated Percentage is 2.00945633%.

            SECTION 11.08     ORIGINAL CLASS B-1 PERCENTAGE.

            The Original Class B-1 Percentage is 0.80373260%.

            SECTION 11.09     ORIGINAL CLASS B-2 PERCENTAGE.

            The Original Class B-2 Percentage is 0.35157035%.

            SECTION 11.10     ORIGINAL CLASS B-3 PERCENTAGE.

            The Original Class B-3 Percentage is 0.35157035%.

            SECTION 11.11     ORIGINAL CLASS B-4 PERCENTAGE.

            The Original Class B-4 Percentage is 0.20118379%.

            SECTION 11.12     ORIGINAL CLASS B-5 PERCENTAGE.

            The Original Class B-5 Percentage is 0.15038656%.

            SECTION 11.13     ORIGINAL CLASS B-6 PERCENTAGE.

            The Original Class B-6 Percentage is 0.15101268%.

            SECTION 11.14     ORIGINAL CLASS B PRINCIPAL BALANCE.

            The Original Class B Principal Balance is $6,012,873.55

            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                    $2,405,000.00
            Class B-2                    $1,052,000.00
            Class B-3                    $1,052,000.00
            Class B-4                      $602,000.00
            Class B-5                      $450,000.00
            Class B-6                      $451,873.55

            SECTION 11.16     ORIGINAL CLASS B-1 FRACTIONAL INTEREST.

            The Original Class B-1 Fractional Interest is 1.20572373%.

            SECTION 11.17     ORIGINAL CLASS B-2 FRACTIONAL INTEREST.

            The Original Class B-2 Fractional Interest is 0.85415338%.

            SECTION 11.18     ORIGINAL CLASS B-3 FRACTIONAL INTEREST.

            The Original Class B-3 Fractional Interest is 0.50258303%.

            SECTION 11.19     ORIGINAL CLASS B-4 FRACTIONAL INTEREST.

            The Original Class B-4 Fractional Interest is 0.30139923%.

            SECTION 11.20     ORIGINAL CLASS B-5 FRACTIONAL INTEREST.

            The Original Class B-5 Fractional Interest is 0.15101268%.

            SECTION 11.21     CLOSING DATE.

            The Closing Date is May 27, 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  $30,061,643.13  (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-PO and Class A-R
Certificates)  and the Class B Certificates  (other than the Class B-5 and Class
B-6 Certificates),  the minimum Denomination  eligible for wire transfer on each
Distribution Date is $500,000. With respect to the Class A-PO Certificates,  the
minimum  Denomination  eligible for wire transfer on each  Distribution  Date is
100% Percentage  Interest.  The Class A-R, Class B-5 and Class B-6  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-3, Class A-PO and Class A-R Certificates) and each Class of the
Class B Certificates  (other than the Class B-4, B-5 and Class B-6 Certificates)
represents  a  $100,000  Denomination.  A Single  Certificate  for the Class A-3
Certificates  represents a $1,000  Denomination.  A Single  Certificate  for the
Class A-R Certificate  represents a $100 Denomination.  A Single Certificate for
the  Class  B-4  Certificates  represents  a  $250,000  Denomination.  A  Single
Certificate  for  the  Class  B-5  and  Class  B-6  Certificates   represents  a
$450,000.00 and $451,873.55 Denomination, respectively. A Single Certificate for
the Class A-PO Certificates represents a $1,387,557.72 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.

<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:  Nancy E. Burgess
                                       Title: Vice President


                                    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 27th day of May, 1999, before me, a notary public in and for
the State of Maryland,  personally  appeared Alan S. 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 27th day of May, 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 27th day of May, 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 27th day of May, 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>


                                   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 1999-15 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: May 1, 1999

CUSIP No.: 66937R UT 4                    First Distribution Date: June 25, 1999

Percentage Interest evidenced:            Denomination: $
by this Certificate: %

Final Scheduled Maturity Date: June 25, 2014

<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-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 May 27, 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 6.250% 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 1999-15 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:  May 1, 1999

CUSIP No.:  66937R UU 1                  First Distribution Date:  June 25, 1999

Percentage Interest evidenced:           Denomination: $
by this Certificate:  %

Final Scheduled Maturity Date:  June 25, 2014

<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-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 May 27, 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 6.250% 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.

            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 1999-15 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:  May 1, 1999

CUSIP No.:  66937R UV 9                  First Distribution Date:  June 25, 1999

Percentage Interest evidenced:           Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:  June 25, 2014


<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-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 May 27, 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 6.250% 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.

            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  is issued on May 27, 1999, and based on its issue
price of 97.82451%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 2 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 May 19,  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  2.21020833%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  6.64%; and (iii) the
amount of OID allocable to the short first accrual  period (May 27, 1999 to June
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.01916286%.

            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 1999-15 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:  May 1, 1999

                                         First Distribution Date:  June 25, 1999
Percentage Interest evidenced:
by this Certificate:  %                  Denomination:  $

Final Scheduled Maturity Date:  June 25, 2014

<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 May 27, 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.

            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  is issued on May 27,  1999,  at an issue price of
68.06250%  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 May 19,  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 31.93750000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  9.14%; and (iii) the
amount of OID allocable to the short first accrual  period (May 27, 1999 to June
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.48398940%.

            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 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 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 1999-15, 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:  May 1, 1999

CUSIP No.:  66937R UW 7                  First Distribution Date:  June 25, 1999

Percentage Interest evidenced:           Denomination:  $100.00
by this Certificate:  100%

Final Scheduled Maturity Date:  June 25, 2014

<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 May 27, 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 6.250% 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 B-1
                     [FORM OF FACE OF CLASS B-1 CERTIFICATE]

            THIS  CERTIFICATE IS  SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS
A  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 1999-15, 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:  May 1, 1999

CUSIP No.:  66937R UX 5                  First Distribution Date:  June 25, 1999

Percentage Interest evidenced:           Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:  June 25, 2014

<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 May 27, 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 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 6.250% 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.

            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  is issued on May 27, 1999, and based on its issue
price of 97.02951%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 2 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 May 19,  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  3.00520833%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  6.79%; and (iii) the
amount of OID allocable to the short first accrual  period (May 27, 1999 to June
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.02587004%.

            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  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 1999-15, 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:  May 1, 1999

CUSIP No.:  66937R UY 3                  First Distribution Date:  June 25, 1999

Percentage Interest evidenced:           Denomination: $
by this Certificate:  %

Final Scheduled Maturity Date:  June 25, 2014

<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 May 27, 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  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
6.250% 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.

            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  is issued on May 27, 1999, and based on its issue
price of 95.45139%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 2 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 May 19,  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  4.58333333%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.08%; and (iii) the
amount of OID allocable to the short first accrual  period (May 27, 1999 to June
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.03910897%.

            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,  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 1999-15, 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:  May 1, 1999

CUSIP No.:  66937R UZ 0                  First Distribution Date:  June 25, 1999

Percentage Interest evidenced:           Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:  June 25, 2014

<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 May 27, 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  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
6.250% 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.

            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  is issued on May 27, 1999, and based on its issue
price of 91.10764%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 2 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 May 19,  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  8.92708333%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.91%; and (iii) the
amount of OID allocable to the short first accrual  period (May 27, 1999 to June
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.07444235%.

            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,  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 1999-15, 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:  May 1, 1999

CUSIP No.:  66937R XC 8                  First Distribution Date:  June 25, 1999

Percentage Interest evidenced:           Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:  June 25, 2014

<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 May 27, 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  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
6.250% 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.

            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  is issued on May 27, 1999, and based on its issue
price of 81.26389%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 2 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 May 19,  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 18.77083333%;  (ii) the annual yield to maturity of
this Certificate,  compounded  monthly,  is approximately  10.04%; and (iii) the
amount of OID allocable to the short first accrual  period (May 27, 1999 to June
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.14814252%.

            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,  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 1999-15, 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:  May 1, 1999

CUSIP No.:  66937R XD 6                  First Distribution Date:  June 25, 1999

Percentage Interest evidenced:           Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:  June 25, 2014

<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 May 27, 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  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
6.250% 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.
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.

            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  is issued on May 27, 1999, and based on its issue
price of 69.10764%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 2 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 May 19,  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 30.92708333%;  (ii) the annual yield to maturity of
this Certificate,  compounded  monthly,  is approximately  13.25%; and (iii) the
amount of OID allocable to the short first accrual  period (May 27, 1999 to June
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.22563756%.

            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,  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 1999-15, 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:  May 1, 1999

CUSIP No.:  66937R XE 4                  First Distribution Date:  June 25, 1999

Percentage Interest evidenced:           Denomination:  $
by this Certificate:  %

Final Scheduled Maturity Date:  June 25, 2014

<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 May 27, 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  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
6.250% 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.
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.

            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  is issued on May 27, 1999, and based on its issue
price of 24.45139%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal balance (plus 2 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 May 19,  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 75.58333333%;  (ii) the annual yield to maturity of
this Certificate,  compounded  monthly,  is approximately  43.37%; and (iii) the
amount of OID allocable to the short first accrual  period (May 27, 1999 to June
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.33766467%.

            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 1999-15 Certificates]

                     NORWEST ASSET SECURITIES CORPORATION
                      MORTGAGE PASS-THROUGH CERTIFICATES
                                SERIES 1999-15

            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 May 27,  1999  relating  to the
issuance of Mortgage Pass-Through Certificates,  Series 1999-15 (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]


NASCOR
NMI / 1999-15  Exhibit F-1
15 YEAR FIXED RATE RELOCATION AND NON RELOCATION  LOANS

<TABLE>
<CAPTION>
(i)       (ii)                                       (iii)     (iv)      (v)       (vi)       (vii)     (viii)     (ix)
- --------  ---------------------------  -----  -----  --------  --------  --------  ---------  --------  ---------  ---------------
                                                                         NET                                       CUT-OFF
MORTGAGE                                                       MORTGAGE  MORTGAGE  CURRENT    ORIGINAL  SCHEDULED  DATE
LOAN                                          ZIP    PROPERTY  INTEREST  INTEREST  MONTHLY    TERM TO   MATURITY   PRINCIPAL
NUMBER    CITY                         STATE  CODE   TYPE      RATE      RATE      PAYMENT    MATURITY  DATE       BALANCE
- --------  ---------------------------  -----  -----  --------  --------  --------  ---------  --------  ---------  ---------------
<S>       <C>                          <C>    <C>    <C>       <C>       <C>       <C>        <C>       <C>        <C>
4792116   RUMSON                       NJ     07760  SFD          6.500     6.233  $5,226.65      180   1-Sep-13   $    583,615.25
4794110   NEW YORK                     NY     10022  COP          6.750     6.250  $3,639.20      180   1-Nov-13   $    403,181.77
4840620   NEW YORK                     NY     10028  COP          6.750     6.250  $2,212.27      180   1-Feb-14   $    247,568.32
4894339   SANTA ROSA                   CA     95404  SFD          7.250     6.250  $  976.76      180   1-Oct-13   $    102,510.72
4894989   COLLEYVILLE                  TX     76034  SFD          6.625     6.250  $3,317.50      180   1-Mar-14   $    375,297.34
4902770   VICTOR                       NY     14564  SFD          6.375     6.108  $2,395.71      180   1-Apr-14   $    276,276.93
4914659   PELHAM MANOR                 NY     10803  SFD          6.625     6.250  $3,114.69      180   1-Mar-14   $    352,431.27
4915932   ALBANY                       OR     97321  SFD          6.875     6.250  $2,247.47      180   1-Dec-13   $    247,935.09
4917485   REMSENBURG                   NY     11960  SFD          6.375     6.108  $3,899.07      180   1-Feb-14   $    446,619.00
4919254   FOSTER CITY                  CA     94404  SFD          6.750     6.250  $3,097.18      180   1-Jan-14   $    345,136.11
4919923   BEVERLY HILLS                CA     90210  SFD          6.500     6.233  $7,839.97      180   1-Apr-14   $    897,035.03
4920027   SAN JOSE                     CA     95120  SFD          6.875     6.250  $2,622.06      180   1-Mar-14   $    292,119.26
4920942   SIMI VALLEY                  CA     93065  SFD          6.375     6.108  $3,004.14      180   1-Apr-14   $    346,442.49
4924823   NEW YORK                     NY     10016  LCO          6.875     6.250  $2,541.79      180   1-Apr-14   $    284,091.03
4925789   EASTON                       CT     06612  SFD          6.125     5.858  $4,253.13      180   1-May-14   $    500,000.00
4930030   HIGHLANDS                    NC     28741  SFD          7.375     6.250  $3,035.75      180   1-Apr-14   $    328,992.37
4932721   SHAWNEE                      OK     74804  SFD          6.875     6.250  $3,433.64      180   1-Mar-14   $    382,537.14
4934729   STATEN ISLAND                NY     10314  MF2          7.500     6.250  $  463.51      180   1-Apr-14   $     49,848.99
4934902   TENNAFLY                     NJ     07670  SFD          6.500     6.233  $5,575.09      180   1-Feb-14   $    618,559.15
4937080   BODEGA                       CA     94922  SFD          6.750     6.250  $4,398.01      180   1-Apr-14   $    495,397.62
4937599   ARMONK                       NY     10504  SFD          6.625     6.250  $3,397.84      180   1-Mar-14   $    384,470.48
4937857   ORINDA                       CA     94563  SFD          6.000     5.733  $3,831.11      180   1-Mar-14   $    450,869.97
4938386   BURLESON                     TX     76028  SFD          6.875     6.250  $3,299.86      180   1-Apr-14   $    368,819.93
4939438   GARDEN CITY                  NY     11530  SFD          6.625     6.250  $2,997.48      180   1-Apr-14   $    340,287.33
4939663   CLIFTON                      NJ     07011  SFD          6.375     6.108  $2,592.76      180   1-Apr-14   $    299,000.99
4939728   FAIRFIELD                    NJ     07004  SFD          7.250     6.250  $2,902.90      180   1-May-14   $    318,000.00
4942433   ORANGEBURG                   NY     10962  SFD          7.250     6.250  $3,195.02      180   1-Mar-14   $    347,832.61
4944364   CHATTANOOGA                  TN     37421  SFD          6.625     6.250  $2,590.08      180   1-Jan-14   $    291,122.30
4945209   NEWTON                       MA     02467  SFD          7.375     6.250  $4,967.59      180   1-Apr-14   $    538,351.16
4945407   MISSION                      TX     78572  SFD          6.750     6.250  $5,359.02      180   1-Mar-14   $    601,601.79
4946268   STAMFORD                     CT     06903  SFD          6.875     6.250  $3,549.59      180   1-Mar-14   $    395,453.97
4947744   OAK PARK                     IL     60302  SFD          6.750     6.250  $3,185.68      180   1-Apr-14   $    358,839.32
4948087   ARCADIA                      CA     91007  SFD          6.750     6.250  $3,920.15      180   1-Feb-14   $    438,691.04
4948148   MANHATTAN BEACH              CA     90266  SFD          6.750     6.250  $4,902.40      180   1-Feb-14   $    548,603.72
4948158   SAN MARINO                   CA     91108  SFD          6.750     6.250  $3,477.70      180   1-Feb-14   $    389,177.35
4948393   BALDWIN                      NY     11510  SFD          6.625     6.250  $2,107.19      180   1-Mar-14   $    238,431.30
4949273   STATEN ISLAND                NY     10312  MF2          7.375     6.250  $2,897.76      180   1-Apr-14   $    314,038.18
4949611   NEW YORK                     NY     10016  HCO          6.625     6.250  $1,647.12      180   1-Apr-14   $    186,988.59
4949932   ISLIP                        NY     11751  SFD          6.625     6.250  $4,741.17      180   1-Mar-14   $    536,470.44
4950359   RATHDRUM                     ID     83858  SFD          6.875     6.250  $2,568.54      180   1-Jan-14   $    284,294.15
4951790   FREMONT                      CA     94539  SFD          6.875     6.250  $3,509.45      180   1-Mar-14   $    390,982.77
4952213   LOS ALTOS                    CA     94022  SFD          6.375     6.108  $5,258.10      180   1-Apr-14   $    606,374.03
4953671   CEDAR HILL                   TX     75104  SFD          6.875     6.250  $2,568.55      180   1-Mar-14   $    286,157.64
4954070   SANDY                        UT     84092  SFD          6.750     6.250  $2,920.21      180   1-Mar-14   $    327,866.10
4954618   WILTON                       CT     06897  SFD          6.000     5.733  $3,206.66      180   1-Apr-14   $    378,693.34
4955074   OCEANSIDE                    CA     92054  LCO          7.000     6.250  $2,482.57      180   1-Apr-14   $    273,328.60
4955983   MYRTLE BEACH                 SC     29577  SFD          7.000     6.250  $4,718.85      180   1-Mar-14   $    521,677.64
4956432   SCOTTSDALE                   AZ     85258  SFD          6.375     6.108  $4,079.27      180   1-Feb-14   $    467,259.60
4957430   CUPERTINO                    CA     95014  SFD          7.000     6.250  $2,903.22      180   1-Mar-14   $    320,955.95
4958003   FREMONT                      CA     94539  SFD          6.750     6.250  $2,787.47      180   1-Mar-14   $    312,963.10
4958102   SAN JOSE                     CA     95120  SFD          6.750     6.250  $2,610.49      180   1-Mar-14   $    293,092.43
4958149   EAST GREENWICH               RI     02818  SFD          6.500     6.233  $2,177.77      180   1-May-14   $    250,000.00
4958332   MILL VALLEY                  CA     94941  SFD          7.000     6.250  $2,912.21      180   1-Mar-14   $    321,949.62
4958811   ALPINE                       CA     91901  SFD          7.000     6.250  $3,505.44      180   1-Mar-14   $    387,531.94
4959043   KAILUA                       HI     96734  SFD          6.375     6.108  $3,385.71      180   1-May-14   $    391,750.00
4959088   TRACY                        CA     95376  SFD          6.875     6.250  $2,687.61      180   1-Mar-14   $    299,294.12
4959125   DOUGLASTON                   NY     11362  SFD          6.750     6.250  $1,460.10      180   1-Apr-14   $    164,468.03
4959452   SWAMPSCOTT                   MA     01907  SFD          6.625     6.250  $5,267.97      180   1-May-14   $    600,000.00
4959472   OVIEDO                       FL     32765  SFD          7.375     6.250  $2,425.84      180   1-Feb-14   $    261,269.57
4959829   CARMEL                       IN     46032  SFD          6.125     5.858  $2,962.73      180   1-Mar-14   $    345,924.05
4959966   LAGUNA NIGUEL                CA     92677  SFD          6.625     6.250  $3,292.48      180   1-Feb-14   $    371,313.21
4960533   SANTA MONICA                 CA     90402  SFD          6.625     6.250  $8,589.42      180   1-Apr-14   $    975,111.61
4960617   SAN JUAN CAPISTRANO          CA     92675  SFD          7.125     6.250  $2,568.04      180   1-Mar-14   $    280,767.62
4961079   LAUREL HOLLOW                NY     11791  SFD          6.875     6.250  $3,121.50      180   1-Apr-14   $    348,883.71
4961194   CORONADO                     CA     92118  SFD          6.750     6.250  $4,424.55      180   1-Mar-14   $    490,749.96
4962215   TALLAHASSEE                  FL     31312  SFD          6.875     6.250  $3,995.51      180   1-Feb-14   $    443,688.87
4962315   MOORESVILLE                  NC     28115  SFD          6.875     6.250  $4,659.23      167   1-Feb-13   $    494,400.43
4962449   WILMINGTON                   DE     19808  SFD          6.500     6.233  $2,787.55      180   1-Apr-14   $    318,945.78
4962483   SCOTTSDALE                   AZ     85259  SFD          6.375     6.108  $2,276.44      180   1-Mar-14   $    261,641.08
4962557   ROCKVILLE CENTRE             NY     11570  SFD          6.750     6.250  $2,212.28      180   1-May-14   $    250,000.00
4962731   DENVER                       CO     80220  SFD          6.875     6.250  $2,744.68      180   1-Mar-14   $    305,781.32
4963109   RIDGEFIELD                   CT     06877  SFD          6.375     6.108  $3,457.01      180   1-Apr-14   $    398,667.99
4963502   ALBERTSON                    NY     11507  SFD          6.750     6.250  $2,787.47      180   1-Mar-14   $    312,963.10
4963536   DANBURY                      CT     06810  SFD          6.625     6.250  $3,160.78      180   1-Apr-14   $    358,826.72
4963851   ELLICOTT CITY                MD     21243  PUD          6.375     6.108  $3,457.01      180   1-Apr-14   $    398,667.99
4964382   RIVERSIDE                    CA     92506  SFD          7.000     6.250  $2,345.94      180   1-Mar-14   $    259,348.32
4964848   SUNNYVALE                    CA     94087  SFD          6.875     6.250  $3,587.93      180   1-Mar-14   $    398,895.24
4965025   WATSONVILLE                  CA     95076  SFD          6.875     6.250  $2,943.12      180   1-Apr-14   $    328,947.51
4965105   ELM GROVE                    WI     53122  SFD          6.250     5.983  $2,572.27      180   1-May-14   $    300,000.00
4965610   AGOURA                       CA     91301  SFD          6.750     6.250  $5,574.93      180   1-Apr-14   $    627,968.82
4965993   RUMSON                       NJ     07760  SFD          6.500     6.233  $2,395.55      180   1-May-14   $    275,000.00
4966006   FLEMINGTON                   NJ     08822  SFD          6.625     6.250  $3,687.58      180   1-Apr-14   $    418,631.17
4966313   COROLLA                      NC     27927  SFD          7.000     6.250  $2,453.46      180   1-Apr-14   $    272,100.18
4966315   SARATOGA                     CA     95070  SFD          6.875     6.250  $3,175.00      180   1-Jan-14   $    351,419.15
4966424   CHICO                        CA     95928  SFD          7.250     6.250  $2,519.51      180   1-Apr-14   $    274,667.50
4966692   BIXBY                        OK     74111  SFD          6.750     6.250  $2,686.59      180   1-Mar-14   $    301,636.81
4967294   GREENVILLE                   NC     27858  SFD          5.875     5.608  $2,929.92      180   1-Mar-14   $    347,561.29
4967415   SAINT LOUIS PARK             MN     55416  SFD          6.500     6.233  $4,529.76      180   1-Apr-14   $    518,286.91
4967453   SUNSET HILLS                 MO     63127  SFD          6.875     6.250  $2,996.63      180   1-Apr-14   $    334,928.37
4967547   LOS ANGELES                  CA     90049  SFD          6.750     6.250  $3,760.87      180   1-Feb-14   $    420,866.11
4967787   SANDY HOOK                   CT     06482  SFD          6.625     6.250  $2,291.57      180   1-Mar-14   $    259,294.04
4967976   FLEMINGTON                   NJ     08822  SFD          5.875     5.608  $2,779.24      180   1-Mar-14   $    329,686.71
4968071   DANVILLE                     CA     94526  SFD          6.875     6.250  $3,834.98      180   1-Apr-14   $    428,628.56
4968557   SCOTTS VALLEY                CA     95066  SFD          7.125     6.250  $3,170.41      180   1-Apr-14   $    348,907.72
4969305   NEW ROCHELLE                 NY     10804  SFD          6.750     6.250  $2,433.50      180   1-Mar-14   $    273,221.77
4969326   BROOKLYN                     NY     11211  LCO          7.250     6.250  $3,386.73      180   1-Mar-14   $    368,702.54
4969369   LAFAYETTE                    CA     94549  SFD          6.625     6.250  $2,985.18      180   1-Mar-14   $    337,777.69
4969394   LOS ANGELES                  CA     90048  SFD          6.500     6.233  $2,613.33      180   1-Mar-14   $    298,017.99
4969407   LOS ANGELES                  CA     90048  SFD          6.625     6.250  $3,312.68      180   1-May-14   $    377,300.00
4969480   ALPHARETTA                   GA     30202  SFD          6.875     6.250  $3,423.39      180   1-Mar-14   $    381,394.49
4969744   SAINT LOUIS                  MO     63130  SFD          6.625     6.250  $2,352.15      180   1-Apr-14   $    267,026.88
4969772   MORRISTOWN                   NJ     07960  SFD          6.875     6.250  $5,351.13      180   1-Apr-14   $    598,086.37
4969991   AUSTIN                       TX     78746  SFD          6.375     6.108  $2,592.76      180   1-Apr-14   $    299,000.99
4969992   CRANBERRY ISLES              ME     04662  SFD          6.875     6.250  $2,813.81      180   1-May-14   $    315,500.00
4970205   OAK PARK                     CA     91377  SFD          6.250     5.983  $3,206.77      180   1-Apr-14   $    372,741.15
4970834   CHESTER                      VA     23836  SFD          6.125     5.858  $4,048.98      180   1-Apr-14   $    474,380.60
4971077   SAN DIEGO                    CA     92130  SFD          6.875     6.250  $3,027.85      180   1-Mar-14   $    337,328.20
4971088   THOUSAND OAKS                CA     91360  SFD          7.250     6.250  $2,647.30      180   1-Apr-14   $    289,104.78
4971118   BOXBOROUGH                   MA     01719  SFD          6.875     6.250  $2,641.68      180   1-Apr-14   $    295,255.30
4971176   EDMOND                       OK     73003  SFD          6.625     6.250  $8,779.94      180   1-Apr-14   $    996,740.89
4971207   SARATOGA                     CA     95070  SFD          6.875     6.250  $3,103.66      180   1-Mar-14   $    344,768.09
4971369   HOLLYWOOD                    FL     33019  SFD          7.500     6.250  $2,781.04      180   1-May-14   $    300,000.00
4971573   RANCHO PALOS VERDES          CA     90275  SFD          7.000     6.250  $2,426.84      180   1-Mar-14   $    268,291.35
4971745   HOUSTON                      TX     77069  SFD          6.625     6.250  $2,844.70      180   1-May-14   $    324,000.00
4971771   OWINGS MILLS                 MD     21117  SFD          6.750     6.250  $2,265.37      180   1-Apr-14   $    255,174.63
4971798   OAK BROOK                    IL     60523  SFD          7.000     6.250  $4,467.18      180   1-Mar-14   $    493,709.69
4971873   NEW YORK                     NY     10025  HCO          6.375     6.108  $2,324.84      180   1-Mar-14   $    267,203.68
4972117   PACIFIC PALISADES            CA     90272  SFD          6.750     6.250  $2,583.94      180   1-Mar-14   $    290,045.39
4972120   HINGHAM                      MA     02043  SFD          6.500     6.233  $2,395.55      180   1-Apr-14   $    274,094.03
4972370   GLENDALE                     CA     91208  SFD          7.125     6.250  $3,857.03      180   1-Mar-14   $    423,134.43
4972414   MONTE SERENO                 CA     95030  SFD          7.250     6.250  $2,587.97      180   1-Mar-14   $    281,744.40
4972416   LAKE OSWEGO                  OR     97034  SFD          6.625     6.250  $5,612.14      180   1-Mar-14   $    635,022.06
4972565   SHERMAN OAKS                 CA     91423  SFD          6.875     6.250  $3,558.50      180   1-Mar-14   $    396,447.59
4972596   SAN JOSE                     CA     95133  SFD          7.000     6.250  $2,399.88      180   1-Mar-14   $    265,310.33
4972799   FREMONT                      CA     94539  SFD          6.875     6.250  $3,208.90      180   1-Mar-14   $    357,498.33
4972977   GIG HARBOR                   WA     98332  SFD          6.250     5.983  $2,540.97      180   1-Apr-14   $    295,352.52
4973092   SNOHOMISH                    WA     98296  SFD          6.875     6.250  $3,210.68      180   1-Apr-14   $    358,851.82
4973225   LOS ANGELES                  CA     90049  SFD          7.500     6.250  $4,635.07      180   1-Mar-14   $    496,970.42
4973264   MILLBURN                     NJ     07041  SFD          6.500     6.233  $5,226.64      180   1-Mar-14   $    596,036.01
4973965   AMAGANSETT                   NY     11930  SFD          7.375     6.250  $1,517.88      180   1-Apr-14   $    164,496.18
4974133   AUSTIN                       MN     55912  SFD          6.750     6.250  $2,831.71      180   1-Apr-14   $    318,968.29
4974287   RIVER FOREST                 IL     60305  SFD          6.875     6.250  $2,764.75      180   1-Apr-14   $    309,011.29
4974407   COTTONWOOD                   AZ     86326  SFD          7.000     6.250  $2,921.19      180   1-Mar-14   $    322,943.31
4974489   NEWTON                       MA     02465  SFD          6.875     6.250  $4,173.44      180   1-Apr-14   $    466,296.13
4974688   CHICO                        CA     95926  SFD          6.875     6.250  $2,639.89      180   1-Mar-14   $    293,992.00
4974815   CARY                         IL     60013  SFD          5.625     5.358  $2,883.07      180   1-May-14   $    350,000.00
4974877   HUNTINGTON BEACH             CA     92646  SFD          6.375     6.108  $2,592.76      180   1-Mar-14   $    297,996.67
4975201   ORANGE BEACH                 AL     36561  SFD          6.625     6.250  $3,498.81      180   1-Mar-14   $    395,895.32
4975516   BEAUMONT                     TX     77707  SFD          6.375     6.108  $3,940.98      180   1-Mar-14   $    452,954.97
4975631   TITUSVILLE                   FL     32796  SFD          6.000     5.733  $3,029.45      180   1-May-14   $    359,000.00
4975642   ORLANDO                      FL     32832  SFD          6.625     6.250  $2,238.89      180   1-Mar-14   $    253,333.25
4975653   BROOKEVILLE                  MD     20833  SFD          6.625     6.250  $3,954.49      180   1-May-14   $    450,400.00
4975729   AZLE                         TX     76020  SFD          7.000     6.250  $  988.71      180   1-Mar-14   $    109,281.25
4976194   WESTLAKE VILLAGE             CA     91361  SFD          7.500     6.250  $2,818.12      180   1-Mar-14   $    302,075.63
4976672   LAGUNA NIGUEL                CA     92677  SFD          6.875     6.250  $2,648.81      180   1-Apr-14   $    296,052.75
4977082   PLANO                        TX     75093  SFD          6.750     6.250  $3,898.92      180   1-Apr-14   $    437,230.47
4977162   SAN JOSE                     CA     95133  SFD          7.000     6.250  $2,705.48      180   1-Mar-14   $    299,095.16
4977449   SAN JOSE                     CA     95120  SFD          6.750     6.250  $3,389.21      180   1-Apr-14   $    381,765.17
4977456   WEST COVINA                  CA     91791  SFD          7.000     6.250  $2,730.64      180   1-Feb-14   $    300,907.78
4977468   GULF BREEZE                  FL     32561  SFD          7.000     6.250  $2,721.66      180   1-Apr-14   $    301,844.67
4977477   NOVATO                       CA     94965  SFD          7.125     6.250  $3,387.81      180   1-Nov-13   $    366,892.11
4977483   NORWALK                      CT     06850  SFD          6.750     6.250  $2,743.22      180   1-Apr-14   $    309,000.53
4977530   SAN JOSE                     CA     95125  SFD          7.000     6.250  $3,820.02      180   1-Feb-14   $    420,953.93
4977583   LITTLETON                    MA     01460  SFD          6.625     6.250  $2,151.09      180   1-Apr-14   $    244,201.51
4977810   ORINDA                       CA     94563  SFD          7.125     6.250  $2,962.07      180   1-Apr-14   $    325,441.56
4977885   DEARBORN                     MI     48120  LCO          6.875     6.250  $4,120.37      180   1-Apr-14   $    459,646.88
4977914   LOS ALTOS HILLS              CA     94022  SFD          7.125     6.250  $9,058.32      180   1-Apr-14   $    996,879.18
4977945   DANVILLE                     CA     94526  SFD          5.875     5.608  $2,946.66      180   1-Apr-14   $    350,776.67
4978107   KILLIAN                      LA     70462  SFD          6.750     6.250  $3,362.66      180   1-Mar-14   $    377,189.06
4978125   LAS VEGAS                    NV     89129  SFD          6.250     5.983  $2,537.98      180   1-Mar-14   $    294,002.19
4978624   NEW CANAAN                   CT     06840  SFD          6.875     6.250  $8,900.71      180   1-Apr-14   $    994,817.00
4978688   AMITYVILLE                   NY     11701  SFD          6.875     6.250  $2,709.01      180   1-Mar-14   $    301,806.90
4979164   CLEAR BROOK                  VA     22624  SFD          6.125     5.858  $2,585.90      180   1-Apr-14   $    302,965.77
4979192   SANTA ROSA                   CA     95403  SFD          6.875     6.250  $3,424.72      180   1-Feb-14   $    379,927.32
4979359   SAN JUAN CAPISTRA            CA     92675  SFD          6.500     6.233  $5,286.89      180   1-Apr-14   $    604,916.57
4979389   NEW CANAAN                   CT     06840  SFD          6.875     6.250  $3,210.68      180   1-Apr-14   $    358,851.82
4979414   INDIANAPOLIS                 IN     46250  SFD          6.500     6.233  $2,613.33      180   1-Apr-14   $    299,011.67
4979537   LONGWOOD                     FL     32779  SFD          6.875     6.250  $4,474.88      180   1-Jan-14   $    495,293.71
4979542   CHESAPEAKE                   VA     23322  SFD          6.250     5.983  $3,301.08      180   1-Jan-14   $    379,775.87
4979550   PORTLAND                     OR     97225  SFD          6.875     6.250  $2,229.64      180   1-Nov-13   $    245,146.86
4979561   ST LOUIS                     MO     63131  SFD          7.000     6.250  $3,820.02      180   1-Oct-13   $    415,448.17
4979580   BREINIGSVILLE                PA     18031  SFD          6.000     5.733  $3,329.02      180   1-Dec-13   $    370,001.17
4979596   LIVERMORE                    CA     94550  SFD          6.125     5.858  $3,771.25      180   1-Dec-13   $    433,615.22
4979604   BLOOMINGTON                  MN     55438  PUD          6.500     6.233  $2,613.33      180   1-Jan-14   $    296,012.62
4979921   DENVILLE                     NJ     07834  SFD          6.875     6.250  $2,820.05      180   1-May-14   $    316,151.26
4980250   SARATOGA                     CA     95070  SFD          6.750     6.250  $2,920.21      180   1-Apr-14   $    328,936.04
4980278   BROOKEVILLE                  MD     20833  SFD          6.750     6.250  $3,247.62      180   1-Apr-14   $    365,816.76
4980295   SUNNYVALE                    CA     94089  SFD          6.750     6.250  $2,345.02      180   1-Apr-14   $    264,145.61
4980672   OAKLAND                      CA     94611  SFD          6.375     6.108  $2,722.39      180   1-Feb-14   $    311,836.39
4980732   SAN ANTONIO                  TX     78257  SFD          6.625     6.250  $2,864.02      180   1-May-14   $    326,200.00
4980755   TRUCKEE                      CA     96161  SFD          7.250     6.250  $2,464.73      180   1-Mar-14   $    268,328.00
4980841   SARATOGA                     CA     95070  SFD          7.000     6.250  $5,069.40      180   1-Apr-14   $    562,220.60
4980861   SAN CLEMENTE                 CA     92672  SFD          7.000     6.250  $3,622.28      180   1-Apr-14   $    401,728.55
4980889   HALF MOON BAY                CA     94019  SFD          6.875     6.250  $2,363.42      180   1-Apr-14   $    264,154.81
4980904   TULSA                        OK     74137  SFD          6.750     6.250  $2,482.18      180   1-May-14   $    280,500.00
4981153   NOKOMIS                      FL     34275  SFD          7.000     6.250  $2,919.85      180   1-Apr-14   $    323,825.11
4981161   PALO ALTO                    CA     94301  SFD          7.000     6.250  $2,399.88      180   1-May-14   $    267,000.00
4981264   LOS ALTOS HILLS              CA     94022  SFD          6.625     6.250  $3,599.78      180   1-Apr-14   $    408,663.76
4981358   WOODBRIDGE                   VA     22192  SFD          6.625     6.250  $2,238.88      180   1-Apr-14   $    254,168.93
4981598   ELKO                         MN     55020  SFD          6.625     6.250  $2,493.51      180   1-Mar-14   $    282,143.71
4981921   LOS ALTOS                    CA     94024  SFD          6.875     6.250  $3,344.46      180   1-Apr-14   $    373,803.98
4982181   EDMOND                       OK     73013  SFD          6.750     6.250  $3,318.41      180   1-Apr-14   $    373,790.97
4982600   REDWOOD SHORES               CA     94065  SFD          7.125     6.250  $3,134.18      180   1-Mar-14   $    343,767.77
4982757   CLIFTON                      VA     20124  SFD          6.875     6.250  $3,036.77      180   1-Apr-14   $    339,414.01
4983048   PALO ALTO                    CA     94303  SFD          7.000     6.250  $2,534.70      180   1-Mar-14   $    280,215.41
4983090   SAN FRANCISCO                CA     94115  SFD          6.875     6.250  $2,943.12      180   1-Apr-14   $    328,947.51
4983330   WHITE BEAR LAKE              MN     55110  SFD          6.875     6.250  $2,318.83      180   1-May-14   $    260,000.00
4983541   OAKLAND                      CA     94610  SFD          7.000     6.250  $2,975.13      180   1-Feb-14   $    327,848.79
4983558   HOUSTON                      TX     77077  SFD          6.750     6.250  $  991.10      180   1-Feb-14   $    110,709.47
4983575   LA HABRA HEIGHTS             CA     90631  SFD          6.750     6.250  $3,875.91      180   1-Feb-14   $    433,739.65
4983724   ALBUQUERQUE                  NM     87122  SFD          6.750     6.250  $2,495.44      180   1-Mar-14   $    280,176.51
4983727   TULSA                        OK     74114  SFD          6.875     6.250  $3,325.40      120   1-Apr-09   $    286,324.60
4984036   GREENWOOD VILLAGE            CO     80111  SFD          6.625     6.250  $3,233.13      180   1-Apr-14   $    367,039.86
4984093   LOS ANGELES                  CA     90049  SFD          6.750     6.250  $3,185.68      180   1-Apr-14   $    358,839.32
4984132   WEST FRIENDSHIP              MD     21794  SFD          6.875     6.250  $2,452.60      180   1-Apr-14   $    274,122.92
4984325   SEATTLE                      WA     98117  SFD          6.625     6.250  $2,286.74      180   1-Mar-14   $    258,747.63
4984326   HOPKINS                      MN     55305  SFD          7.375     6.250  $3,219.74      180   1-Feb-14   $    346,774.16
4984408   FULLERTON                    CA     92835  SFD          6.750     6.250  $3,150.28      180   1-Feb-14   $    352,537.25
4984415   SAN DIEGO                    CA     92120  SFD          7.250     6.250  $1,177.60      180   1-Jan-14   $    126,481.68
4984427   POWAY                        CA     92064  SFD          6.750     6.250  $4,955.50      180   1-Feb-14   $    554,552.97
4984459   MILPITAS                     CA     95035  SFD          7.000     6.250  $2,265.05      180   1-Mar-14   $    250,405.26
4984642   TALLAHASSEE                  FL     32308  SFD          6.875     6.250  $2,822.72      180   1-Mar-14   $    314,475.35
4984763   CARLSBAD                     CA     92009  SFD          7.500     6.250  $2,571.17      180   1-Apr-14   $    276,522.33
4984803   SOUTH DUXBURY                MA     02332  SFD          6.875     6.250  $3,121.50      180   1-May-14   $    350,000.00
4984847   NORMAN                       OK     73072  SFD          7.000     6.250  $2,696.48      180   1-Apr-14   $    299,053.52
4984998   WOODLAND HILLS               CA     91364  SFD          7.000     6.250  $4,008.78      180   1-Mar-14   $    443,177.57
4985237   CINCINNATI                   OH     45208  SFD          6.500     6.233  $4,355.54      180   1-Apr-14   $    498,352.79
4985307   BELLMORE                     NY     11710  SFD          6.375     6.108  $2,592.75      180   1-May-14   $    300,000.00
4985360   SAN ANTONIO                  TX     78209  SFD          6.750     6.250  $2,641.02      180   1-Apr-14   $    297,487.76
4985405   WOODSTOCK                    GA     30189  SFD          6.875     6.250  $2,782.59      180   1-Apr-14   $    311,004.91
4985754   SAN JOSE                     CA     95133  SFD          6.625     6.250  $2,440.83      180   1-Apr-14   $    277,093.96
4985861   MANHATTAN BEACH              CA     90266  SFD          6.375     6.108  $3,370.58      180   1-May-14   $    390,000.00
4985887   BRIDGEWATER                  CT     06752  SFD          7.000     6.250  $3,145.90      180   1-Apr-14   $    348,895.77
4985888   MCLEAN                       VA     22101  SFD          7.125     6.250  $2,640.50      180   1-Mar-14   $    288,757.74
4985894   OAK BROOK                    IL     60523  SFD          6.750     6.250  $3,318.42      180   1-Apr-14   $    373,790.96
4986259   COLORADO SPRINGS             CO     80919  SFD          6.375     6.108  $3,111.31      180   1-May-14   $    360,000.00
4986343   WAUKESHA                     WI     53018  SFD          7.000     6.250  $2,894.23      180   1-Apr-14   $    320,984.10
4986515   CASTRO VALLEY                CA     94552  SFD          7.000     6.250  $2,588.63      180   1-May-14   $    288,000.00
4986544   BOULDER                      CO     80302  SFD          6.625     6.250  $3,380.28      180   1-May-14   $    385,000.00
4986963   RIVERWOODS                   IL     60015  SFD          6.750     6.250  $3,893.61      180   1-Apr-14   $    438,581.39
4987289   LA JOLLA                     CA     92037  SFD          7.000     6.250  $2,651.55      180   1-Apr-14   $    294,069.28
4987397   WINDERMERE                   FL     34786  SFD          6.750     6.250  $5,751.92      180   1-Apr-14   $    647,904.33
4987435   PLEASANTON                   CA     94588  SFD          6.500     6.233  $2,543.64      180   1-May-14   $    292,000.00
4987535   SALT LAKE CITY               UT     84117  SFD          6.500     6.233  $2,761.41      180   1-Apr-14   $    315,955.67
4987552   RIVERWOODS                   IL     60015  SFD          6.875     6.250  $3,995.51      180   1-Apr-14   $    444,971.16
4987563   SAN CARLOS                   CA     94070  SFD          6.875     6.250  $2,675.57      180   1-Apr-14   $    298,718.75
4987706   LAKEWOOD                     CO     80228  SFD          7.000     6.250  $2,347.74      180   1-Mar-14   $    259,447.05
4987794   NANTUCKET                    MA     02554  SFD          7.000     6.250  $2,885.24      180   1-May-14   $    318,000.00
4987812   WALNUT CREEK                 CA     94596  SFD          6.875     6.250  $2,363.42      180   1-Apr-14   $    264,154.81
4987866   MENLO PARK                   CA     94025  SFD          6.875     6.250  $2,675.57      180   1-Apr-14   $    299,043.18
4987874   EVERGREEN                    CO     80439  SFD          6.750     6.250  $3,982.10      180   1-May-14   $    450,000.00
4987954   PLAIN CITY                   OH     43064  SFD          6.500     6.233  $3,144.70      180   1-Apr-14   $    359,344.21
4988092   TARZANA                      CA     91356  SFD          7.000     6.250  $5,123.33      180   1-Apr-14   $    568,201.67
4988466   COLUMBIA                     MO     65203  SFD          6.875     6.250  $2,675.56      180   1-Aug-13   $    291,188.70
4988531   BEVERLY HILLS                CA     90210  SFD          7.125     6.250  $8,505.76      180   1-Apr-14   $    936,069.55
4988623   HIGHLAND PARK                TX     75205  SFD          6.750     6.250  $2,654.73      180   1-Feb-14   $    297,081.96
4988638   HIDDEN HILLS                 CA     91302  PUD          6.500     6.233  $3,118.56      180   1-Feb-14   $    354,095.40
4988777   MARIETTA                     GA     30068  SFD          6.250     5.983  $2,366.49      180   1-Apr-14   $    275,071.01
4988841   HOUSTON                      TX     77056  SFD          6.750     6.250  $2,562.70      180   1-Apr-14   $    288,666.30
4988875   GLASTONBURY                  CT     06033  SFD          6.375     6.108  $2,506.33      180   1-May-14   $    290,000.00
4988950   LAGUNA NIGUEL                CA     92677  SFD          6.875     6.250  $2,341.12      180   1-Apr-14   $    261,662.79
4989040   ISSAQUAH                     WA     98027  SFD          6.875     6.250  $2,497.19      180   1-Mar-14   $    278,208.84
4989317   HALF MOON BAY                CA     94019  SFD          6.500     6.233  $2,852.01      180   1-Apr-14   $    326,321.41
4989726   SAN JOSE                     CA     95118  SFD          7.000     6.250  $2,909.96      180   1-Mar-14   $    321,610.64
4990015   FORT COLLINS                 CO     80526  SFD          6.875     6.250  $2,172.12      180   1-May-14   $    243,550.00
4990474   CAMPBELL                     CA     95008  SFD          6.375     6.108  $4,148.41      180   1-Apr-14   $    478,401.59
4990515   DALLAS                       TX     75220  SFD          6.875     6.250  $4,276.45      180   1-May-14   $    479,500.00
4990714   BELLMONT                     MA     02178  SFD          6.500     6.233  $3,353.77      180   1-Apr-14   $    383,731.65
4990902   SAN RAFAEL                   CA     94901  SFD          6.625     6.250  $4,828.97      180   1-May-14   $    550,000.00
4990951   SPARTANBURG                  SC     29307  SFD          6.375     6.108  $2,781.59      180   1-Apr-14   $    320,778.24
4991036   COTO DE CAZA AREA            CA     92679  SFD          7.375     6.250  $3,679.70      180   1-Mar-14   $    397,549.76
4991130   LOS ANGELES                  CA     90027  SFD          6.750     6.250  $5,574.93      180   1-Mar-14   $    625,926.21
4991364   KINGWOOD                     TX     77345  SFD          6.750     6.250  $2,424.66      180   1-Apr-14   $    273,041.38
4991480   SAN DIEGO                    CA     92131  PUD          6.750     6.250  $2,322.89      180   1-Apr-14   $    261,653.67
4991573   HIGHLAND BEACH               FL     33487  SFD          7.250     6.250  $6,526.97      180   1-Apr-14   $    712,792.82
4991650   FREMONT                      CA     94539  SFD          6.625     6.250  $3,248.58      180   1-Apr-14   $    368,794.13
4991819   LOS ANGELES                  CA     91356  SFD          6.625     6.250  $3,652.46      180   1-Mar-14   $    413,280.93
4991834   HEMET                        CA     92545  SFD          7.125     6.250  $3,623.33      180   1-Mar-14   $    397,495.93
4991854   LOS ALTOS                    CA     94022  SFD          6.625     6.250  $3,195.90      180   1-Mar-14   $    361,620.81
4991867   SARATOGA                     CA     95070  SFD          7.000     6.250  $4,494.15      180   1-Apr-14   $    498,422.52
4991875   ALEXANDRIA                   NJ     08867  SFD          6.625     6.250  $2,467.17      180   1-Mar-14   $    279,163.31
4992059   PIEDMONT                     CA     94611  SFD          6.750     6.250  $3,513.10      180   1-Jan-14   $    391,836.74
4992070   LINN CREEK                   MO     65052  SFD          7.125     6.250  $3,170.41      180   1-Dec-13   $    344,473.34
4992082   NEWARK                       DE     19711  SFD          6.125     5.858  $2,300.95      180   1-Oct-13   $    263,958.60
4992089   MIDDLEBURG                   VA     20117  SFD          7.250     6.250  $3,518.32      180   1-Jun-13   $    371,924.91
4992119   MARBLEHEAD                   MA     01945  SFD          6.875     6.250  $3,028.74      180   1-Dec-13   $    334,122.02
4992130   FREMONT                      CA     94539  SFD          6.625     6.250  $2,546.19      180   1-Jan-14   $    286,188.01
4992135   PLEASANTON                   CA     94566  SFD          6.125     5.858  $2,824.08      180   1-Jan-14   $    327,042.18
4992138   VERNON HILLS                 IL     60061  SFD          6.750     6.250  $2,539.69      180   1-Jan-14   $    283,267.38
4992144   ELKTON                       MD     21921  SFD          6.375     6.108  $2,530.53      180   1-Nov-13   $    286,871.57
4992147   SAN JOSE                     CA     95124  SFD          6.375     6.108  $2,463.12      180   1-Dec-13   $    280,204.03
4992167   TORRANCE                     CA     90503  SFD          6.875     6.250  $3,014.47      180   1-Sep-13   $    329,200.99
4992184   REDWOOD CITY                 CA     94061  SFD          7.000     6.250  $2,471.78      180   1-Jan-14   $    271,499.06
4992190   NIWOT                        CO     80503  SFD          6.750     6.250  $2,659.16      180   1-Jan-14   $    296,591.80
4992191   NEWARK                       CA     94560  SFD          6.500     6.233  $2,658.62      180   1-Jan-14   $    301,145.40
4992196   SAN JOSE                     CA     95129  SFD          6.875     6.250  $2,185.05      180   1-Nov-13   $    240,243.91
4992201   HILTON HEAD ISLAND           SC     29926  SFD          6.625     6.250  $2,366.37      180   1-Jan-14   $    265,977.22
4992203   BLACKSBURG                   VA     24060  SFD          6.750     6.250  $3,097.18      180   1-Jan-14   $    345,448.05
4992211   WINCHESTER                   MA     01890  SFD          6.875     6.250  $3,005.55      180   1-Jan-14   $    331,149.25
4992222   NEEDHAM                      MA     02492  SFD          6.000     5.733  $3,172.22      180   1-Jan-14   $    370,587.19
4992233   SAN FRANCISCO                CA     94114  SFD          6.625     6.250  $2,344.25      180   1-Dec-13   $    262,480.94
4992245   RICHMOND                     VA     23233  SFD          7.250     6.250  $3,027.05      180   1-Jan-14   $    327,468.22
4992253   WICHITA                      KS     67206  SFD          6.625     6.250  $2,458.38      180   1-Dec-13   $    275,386.58
4992254   SAINT CHARLES                IL     60175  SFD          7.250     6.250  $2,835.36      180   1-Jan-14   $    306,729.84
4992260   BETHLEHEM                    PA     18015  SFD          6.875     6.250  $2,238.55      180   1-Jan-14   $    247,770.27
4992269   PALO ALTO                    CA     94303  SFD          7.000     6.250  $2,426.84      180   1-Dec-13   $    265,690.82
4992272   WESTLAKE                     OH     44145  SFD          6.500     6.233  $3,815.46      180   1-Nov-13   $    429,224.15
4992283   SUMNER                       WA     98390  SFD          6.875     6.250  $4,668.86      180   1-Jan-14   $    516,763.83
4992510   DALLAS                       TX     75206  SFD          6.875     6.250  $2,497.19      180   1-May-14   $    280,000.00
4992527   REDWOOD CITY                 CA     94061  SFD          7.000     6.250  $3,685.20      180   1-Jan-14   $    404,780.43
4992554   MCDONOUGH                    GA     30253  SFD          6.500     6.233  $2,630.74      180   1-Jan-14   $    297,987.93
4992738   NEWTON                       MA     02168  SFD          7.125     6.250  $2,989.24      180   1-Jan-14   $    325,843.71
4992775   LUDLOW                       VT     05149  LCO          7.375     6.250  $2,584.99      180   1-Apr-14   $    280,141.99
4992881   BERKELEY                     CA     94705  SFD          6.250     5.983  $3,258.21      180   1-Apr-14   $    378,720.96
4992929   SAN JOSE                     CA     95120  SFD          7.000     6.250  $2,696.49      180   1-Apr-14   $    299,053.51
4993139   WICHITA                      KS     67206  SFD          6.750     6.250  $2,389.26      180   1-Dec-13   $    264,793.13
4993289   DALLAS                       TX     75230  SFD          6.625     6.250  $5,706.96      180   1-Apr-14   $    647,881.58
4993451   HENDERSONVILLE               TN     37075  SFD          6.500     6.233  $2,319.32      180   1-Apr-14   $    265,372.87
4993502   SAN JOSE                     CA     95148  SFD          7.375     6.250  $1,504.08      180   1-May-14   $    163,500.00
4993507   SAN DIEGO                    CA     92123  SFD          6.750     6.250  $2,743.22      180   1-Apr-14   $    309,000.53
4993603   CICERO                       IN     46034  SFD          6.750     6.250  $2,212.27      180   1-Apr-14   $    249,193.98
4993675   LA MESA                      CA     91941  SFD          6.750     6.250  $2,690.13      180   1-Apr-14   $    301,210.09
4993712   WOODLAND HILLS               CA     91367  SFD          7.125     6.250  $3,170.41      180   1-May-14   $    350,000.00
4993749   ATLANTA                      GA     30305  SFD          6.750     6.250  $4,940.01      180   1-Apr-14   $    556,450.15
4993807   HIGHLANDS RANCH              CO     80126  SFD          7.000     6.250  $2,247.07      180   1-Apr-14   $    249,211.26
4993984   COSTA MESA                   CA     92626  SFD          6.875     6.250  $2,981.02      180   1-Apr-14   $    333,183.95
4994272   SAN JOSE                     CA     95129  SFD          7.000     6.250  $2,840.30      180   1-Apr-14   $    315,003.03
4994319   TAHOE CITY                   CA     96145  SFD          6.750     6.250  $8,849.10      180   1-May-14   $  1,000,000.00
4994367   FREMONT                      CA     94539  SFD          6.750     6.250  $3,831.66      180   1-Apr-14   $    431,603.97
4994524   EATONTON                     GA     31024  SFD          7.000     6.250  $3,595.31      180   1-Apr-14   $    398,738.03
4994539   OAKLAND                      CA     94611  SFD          7.000     6.250  $3,145.90      180   1-May-14   $    350,000.00
4994698   KINGWOOD                     TX     77339  SFD          7.000     6.250  $2,516.72      180   1-May-14   $    280,000.00
4995337   POWAY                        CA     92064  SFD          7.000     6.250  $4,044.73      180   1-Apr-14   $    448,580.27
4995392   LA JOLLA                     CA     92037  SFD          7.375     6.250  $3,101.07      180   1-Apr-14   $    336,070.69
4995560   HOUSTON                      TX     77024  SFD          6.875     6.250  $4,601.97      180   1-Apr-14   $    514,354.28
4996036   REDWOOD CITY                 CA     94061  SFD          7.000     6.250  $3,166.58      180   1-May-14   $    352,300.00
4996215   MARCO ISLAND                 FL     34145  SFD          6.875     6.250  $5,083.57      180   1-Apr-14   $    568,182.06
4996601   FORT LAUDERDALE              FL     33327  SFD          6.750     6.250  $4,203.32      180   1-May-14   $    475,000.00
4996710   SAN ANTONIO                  TX     78258  SFD          6.875     6.250  $2,222.51      180   1-Apr-14   $    248,405.20
4996781   SANTA BARBARA                CA     93105  SFD          6.625     6.250  $4,710.44      180   1-Apr-14   $    534,751.49
4996820   NEW ROCHELLE                 NY     10805  SFD          7.000     6.250  $2,966.14      180   1-Apr-14   $    328,958.86
4996960   MIAMI SPRINGS                FL     33166  SFD          7.500     6.250  $2,686.49      180   1-Apr-14   $    288,924.76
4997723   SARATOGA                     CA     95070  SFD          6.750     6.250  $2,967.98      180   1-Mar-14   $    333,229.19
4997742   LOS ALTOS                    CA     94022  SFD          6.500     6.233  $4,616.87      180   1-Apr-14   $    528,253.96
4997804   BETHESDA                     MD     20816  SFD          7.125     6.250  $2,880.55      180   1-May-14   $    318,000.00
4997852   DANVILLE                     CA     94506  SFD          6.750     6.250  $3,111.70      180   1-Mar-14   $    349,366.18
4998008   SAN JOSE                     CA     95129  SFD          7.125     6.250  $2,355.17      180   1-Apr-14   $    259,188.58
4998243   LORENA                       TX     76655  SFD          6.750     6.250  $3,566.63      180   1-Apr-14   $    401,750.53
4998359   CHICAGO                      IL     60611  HCO          6.875     6.250  $2,507.90      180   1-May-14   $    281,200.00
4998393   FAYETTEVILLE                 AR     72703  SFD          7.000     6.250  $2,561.67      180   1-Apr-14   $    284,100.83
4998440   FREMONT                      CA     94539  SFD          6.875     6.250  $2,853.94      180   1-May-14   $    320,000.00
4998529   SAN JOSE                     CA     95124  SFD          7.000     6.250  $2,399.88      180   1-Apr-14   $    266,157.62
4998793   SALT LAKE CITY               UT     84121  SFD          6.500     6.233  $3,175.19      180   1-Apr-14   $    363,299.19
4998817   LAS VEGAS                    NV     89134  SFD          7.000     6.250  $2,780.08      180   1-Mar-14   $    307,342.65
4999097   LOS ANGELES                  CA     90049  SFD          6.875     6.250  $3,500.53      180   1-Apr-14   $    391,248.17
4999140   STAMFORD                     CT     06902  SFD          6.500     6.233  $2,500.08      180   1-May-14   $    287,000.00
4999265   WOODBINE                     MD     21797  SFD          6.750     6.250  $2,698.98      180   1-Apr-14   $    304,016.65
5000056   PALO ALTO                    CA     94303  SFD          7.000     6.250  $3,038.04      180   1-Apr-14   $    336,933.63
5000105   EDINA                        MN     55424  SFD          7.000     6.250  $2,633.57      180   1-Jan-14   $    288,899.20
5000162   SAN DIEGO                    CA     92130  SFD          6.500     6.233  $3,236.17      180   1-Mar-14   $    369,045.62
5000339   LEES SUMMIT                  MO     64064  SFD          6.750     6.250  $2,654.73      180   1-Feb-14   $    297,081.96
5000357   EDEN PRAIRIE                 MN     55347  SFD          6.500     6.233  $2,482.66      180   1-Feb-14   $    281,905.17
5000394   SAINT PAUL                   MN     55105  SFD          6.750     6.250  $3,818.39      180   1-Feb-14   $    427,302.88
5000418   NORTH OAKS                   MN     55127  SFD          7.125     6.250  $5,887.91      180   1-Feb-14   $    643,878.20
5000441   EVANSTON                     IL     60201  SFD          6.750     6.250  $2,530.84      180   1-Feb-14   $    283,179.82
5000469   NORTHBROOK                   IL     60062  SFD          6.750     6.250  $2,583.94      180   1-Mar-14   $    279,539.28
5000523   CLARENDON HILLS              IL     60514  SFD          6.875     6.250  $2,595.30      180   1-Feb-14   $    288,199.69
5000573   GLENCOE                      IL     60022  SFD          6.750     6.250  $4,424.55      180   1-Feb-14   $    495,136.60
5000642   BLOOMFIELD HILLS             MI     48302  SFD          7.000     6.250  $4,271.23      180   1-Mar-14   $    472,192.79
5000657   BRIGHTWATERS                 NY     11718  SFD          6.750     6.250  $2,212.28      180   1-May-14   $    250,000.00
5000720   SAN JOSE                     CA     95138  SFD          7.500     6.250  $4,041.78      180   1-May-14   $    436,000.00
5000808   SAINT CHARLES                IL     60174  SFD          6.750     6.250  $3,495.40      180   1-Apr-14   $    391,266.71
5000967   SARATOGA                     CA     95070  SFD          7.000     6.250  $8,988.29      180   1-Apr-14   $    996,845.04
5001005   DELAFIELD                    WI     53072  SFD          6.750     6.250  $2,654.73      180   1-Feb-14   $    297,081.96
5001139   EDINA                        MN     55424  SFD          6.750     6.250  $3,583.89      180   1-May-14   $    405,000.00
5001400   TIBURON                      CA     94920  SFD          6.875     6.250  $5,797.06      180   1-May-14   $    650,000.00
5002178   LOS ANGELES                  CA     90056  SFD          6.250     5.983  $2,400.78      180   1-Apr-14   $    279,057.55
5002460   CUPERTINO                    CA     95014  SFD          6.375     6.108  $2,774.25      180   1-May-14   $    321,000.00
5002504   CINCINNATI                   OH     45243  SFD          6.875     6.250  $4,236.31      180   1-Mar-14   $    471,961.41
5002512   SUMMIT                       NJ     07901  SFD          7.125     6.250  $3,027.29      180   1-Jan-14   $    329,990.79
5002515   NORTHBROOK                   IL     60062  SFD          6.875     6.250  $3,121.49      180   1-Mar-14   $    347,761.04
5002556   WADSWORTH                    IL     60083  SFD          6.875     6.250  $3,834.97      180   1-Mar-14   $    427,249.29
5002603   SEAL BEACH                   CA     90740  SFD          6.750     6.250  $2,920.21      180   1-Apr-14   $    328,936.04
5002608   DAKOTA DUNES                 SD     57049  SFD          6.750     6.250  $4,305.91      120   1-Feb-09   $    368,373.26
5002638   SANDY                        UT     84092  SFD          6.500     6.233  $2,831.10      180   1-Apr-14   $    323,929.32
5002711   WESTON                       FL     33326  SFD          6.625     6.250  $2,164.26      180   1-May-14   $    246,500.00
5002744   BUFFALO GROVE                IL     60089  SFD          6.750     6.250  $2,389.25      180   1-Feb-14   $    267,373.79
5002816   SUNNYVALE                    CA     94087  SFD          6.500     6.233  $2,765.77      180   1-Apr-14   $    316,454.02
5002863   LAKE FOREST                  IL     60045  SFD          6.875     6.250  $3,246.35      180   1-Mar-14   $    361,671.49
5002971   NORTH WOODMERE               NY     11581  SFD          7.000     6.250  $2,651.55      180   1-May-14   $    295,000.00
5003192   SCOTTSDALE                   AZ     85259  SFD          6.125     5.858  $2,764.54      180   1-May-14   $    325,000.00
5003251   KEY WEST                     FL     33040  SFD          6.750     6.250  $4,181.20      180   1-May-14   $    472,500.00
5003581   PALO ALTO                    CA     94306  SFD          6.875     6.250  $3,834.98      180   1-Apr-14   $    428,628.56
5003592   ROSLYN                       NY     11576  SFD          7.000     6.250  $2,849.29      180   1-Apr-14   $    310,962.85
5003955   BARRINGTON                   RI     02806  SFD          6.750     6.250  $5,170.09      180   1-Mar-14   $    579,466.42
5003972   LOS ANGELES                  CA     90027  SFD          6.750     6.250  $3,982.10      180   1-Mar-14   $    447,090.14
5003995   JACKSON                      MS     39211  SFD          6.875     6.250  $3,531.74      180   1-Feb-14   $    392,189.28
5004005   BAKERSFIELD                  CA     93312  SFD          6.875     6.250  $2,675.57      180   1-Mar-14   $    298,080.88
5004022   SAN MARINO                   CA     91108  SFD          6.625     6.250  $4,258.28      180   1-Mar-14   $    481,829.92
5004025   TARZANA AREALOS ANGEL        CA     91356  SFD          6.750     6.250  $4,026.34      180   1-Mar-14   $    452,057.82
5004032   ORADELL                      NJ     07649  SFD          6.625     6.250  $2,370.59      180   1-Mar-14   $    268,235.22
5004043   CREVE COEUR                  MO     63141  SFD          6.500     6.233  $3,092.44      180   1-Mar-14   $    351,649.21
5004058   IRVINE                       CA     92612  SFD          6.875     6.250  $2,341.12      180   1-May-14   $    262,500.00
5004059   SALT LAKE CITY               UT     84108  SFD          6.875     6.250  $3,219.60      180   1-Feb-14   $    357,201.33
5004062   SAN MARINO                   CA     91108  SFD          6.750     6.250  $2,460.05      180   1-Mar-14   $    276,202.36
5004067   CUPERTINO                    CA     95014  SFD          6.875     6.250  $2,782.59      180   1-Mar-14   $    310,004.12
5004070   PARAMUS                      NJ     07652  SFD          7.000     6.250  $1,155.45      180   1-Mar-14   $    123,051.84
5004076   NORTHLAKE                    IL     60164  SFD          6.875     6.250  $  668.90      180   1-Mar-14   $     74,017.34
5004111   SAN JOSE                     CA     95129  SFD          6.875     6.250  $3,906.33      180   1-Apr-14   $    436,603.05
5004145   HAYWARD                      CA     94541  SFD          7.500     6.250  $3,017.43      180   1-Mar-14   $    323,527.75
5004149   CAMERON PARK                 CA     95682  SFD          6.750     6.250  $2,983.03      180   1-Mar-14   $    334,920.20
5004153   CHESTERFIELD                 MO     63005  SFD          6.625     6.250  $2,568.14      180   1-Mar-14   $    290,588.14
5004156   WILLIAMSBURG                 VA     23185  SFD          6.500     6.233  $2,809.33      180   1-Mar-14   $    320,369.34
5004216   REDWOOD CITY                 CA     94061  SFD          7.375     6.250  $3,606.10      180   1-May-14   $    392,000.00
5004223   FORT LAUDERDALE              FL     33312  SFD          6.625     6.250  $5,706.09      180   1-May-14   $    649,900.00
5005199   SARATOGA                     CA     95070  SFD          7.000     6.250  $3,595.32      180   1-Apr-14   $    398,738.01
5005241   HUNTINGTON                   NY     11743  SFD          6.875     6.250  $3,389.05      180   1-May-14   $    380,000.00
5005320   CONCORD                      MA     01742  SFD          6.750     6.250  $2,654.73      180   1-May-14   $    300,000.00
5006705   SACRAMENTO                   CA     95864  SFD          6.625     6.250  $2,238.89      180   1-Mar-14   $    253,333.25
5006724   BURBANK                      CA     91505  SFD          6.500     6.233  $2,582.84      180   1-Mar-14   $    294,541.11
5006744   MCLEAN                       VA     22102  SFD          6.875     6.250  $7,259.70      180   1-Mar-14   $    808,792.81
5006751   ENCINITAS                    CA     92024  SFD          7.250     6.250  $4,336.10      180   1-Mar-14   $    459,986.02
5006763   WEST CHESTER                 PA     19382  SFD          6.625     6.250  $  658.50      180   1-Mar-14   $     74,509.77
5006787   SEBASTOPOL                   CA     95472  SFD          7.250     6.250  $2,994.20      180   1-Aug-13   $    318,663.84
5006878   RESTON                       VA     20190  PUD          6.500     6.233  $1,568.00      180   1-Mar-14   $    178,810.79
5006962   MANCHESTER                   WA     98353  SFD          6.625     6.250  $2,511.07      180   1-Mar-14   $    284,130.63
5006997   ENCINITAS                    CA     92024  SFD          7.250     6.250  $2,875.52      180   1-May-14   $    315,000.00
5007310   SARATOGA                     CA     95070  SFD          6.875     6.250  $3,183.92      180   1-May-14   $    357,000.00
5007698   PALO ALTO                    CA     94306  SFD          6.750     6.250  $5,751.92      180   1-May-14   $    650,000.00
5007768   ALBUQUERQUE                  NM     87111  SFD          7.375     6.250  $1,195.90      180   1-Apr-14   $    129,603.06
5007835   CROWNSVILLE                  MD     21032  SFD          7.125     6.250  $2,445.75      180   1-Jul-13   $    261,345.01
5008258   FREMONT                      CA     94539  SFD          6.875     6.250  $2,898.53      180   1-May-14   $    325,000.00
5008276   SARATOGA                     CA     95070  SFD          6.875     6.250  $4,459.28      180   1-May-14   $    500,000.00
5009062   MUTTONTOWN                   NY     11545  SFD          7.000     6.250  $2,914.32      120   1-Feb-09   $    246,624.11
5009102   RIVERSIDE                    CT     06878  SFD          6.250     5.983  $2,272.17      180   1-Mar-14   $    263,211.43
5009110   WINTER PARK                  FL     32789  SFD          6.625     6.250  $2,774.47      180   1-May-14   $    316,000.00
5009292   ORMOND BEACH                 FL     32176  SFD          7.250     6.250  $3,834.02      180   1-Feb-14   $    416,086.90
5009307   IOWA CITY                    IA     52240  SFD          6.625     6.250  $2,590.08      180   1-Feb-14   $    292,099.74
5009313   MINOT                        ND     58701  SFD          6.500     6.233  $2,743.99      180   1-Feb-14   $    311,869.89
5009328   DANIELS                      WV     25832  SFD          6.875     6.250  $2,608.67      180   1-Feb-14   $    289,685.27
5009459   STATESVILLE                  NC     28625  SFD          6.750     6.250  $2,212.27      180   1-Feb-14   $    247,568.32
5010283   SAN FRANCISCO                CA     94109  HCO          6.625     6.250  $2,414.49      180   1-May-14   $    275,000.00
5010324   EDMOND                       OK     73034  SFD          6.750     6.250  $4,255.53      180   1-Feb-14   $    476,222.38
5010344   MEMPHIS                      TN     38117  SFD          6.750     6.250  $3,035.24      180   1-Feb-14   $    339,663.71
5010437   BELLA VISTA                  AR     72714  SFD          6.500     6.233  $2,783.19      180   1-Apr-14   $    318,447.44
5010452   AUSTIN                       TX     78734  SFD          6.000     5.733  $2,644.65      180   1-Mar-14   $    311,239.31
5010463   VADNAIS HEIGHTS              MN     55127  SFD          6.625     6.250  $2,864.90      180   1-Feb-14   $    323,091.99
5010465   FREMONT                      CA     94539  SFD          6.875     6.250  $2,434.77      180   1-Mar-14   $    271,253.59
5010469   EDMOND                       OK     73003  PUD          6.750     6.250  $2,650.31      180   1-Feb-14   $    296,586.80
5010477   SALINAS                      CA     93908  SFD          6.750     6.250  $3,982.10      180   1-Mar-14   $    447,090.15
5010485   ST. LOUIS                    MO     63141  SFD          7.000     6.250  $2,678.51      180   1-Apr-14   $    297,059.82
5010504   COLLEYVILLE                  TX     76034  SFD          6.625     6.250  $2,546.19      180   1-Mar-14   $    288,104.48
5011129   LEAWOOD                      KS     66211  SFD          6.750     6.250  $4,249.34      180   1-Mar-14   $    477,094.87
5011152   LEE''S SUMMIT                MO     64081  SFD          6.750     6.250  $2,581.29      180   1-Apr-14   $    290,759.52
5011173   SHOREWOOD                    MN     55331  SFD          6.625     6.250  $3,564.65      180   1-Mar-14   $    403,346.31
5011187   CLIVE                        IA     50325  SFD          5.750     5.483  $2,657.31      180   1-Apr-14   $    318,876.02
5011193   WYNDMOOR                     PA     19038  SFD          6.875     6.250  $3,567.42      180   1-Mar-14   $    397,441.19
5011223   BATON ROUGE                  LA     70808  SFD          6.750     6.250  $2,552.08      180   1-Mar-14   $    286,535.11
5011263   GRESHAM                      OR     97080  SFD          7.000     6.250  $3,595.32      180   1-Mar-14   $    397,468.66
5011309   NEWTOWN                      CT     06470  SFD          6.875     6.250  $2,229.64      180   1-Apr-14   $    249,202.65
5011431   WEST BLOOMFIELD              MI     48324  LCO          7.000     6.250  $3,523.41      180   1-May-14   $    392,000.00
5011515   REDWOOD CITY                 CA     94065  SFD          6.750     6.250  $2,831.72      180   1-Mar-14   $    317,930.76
5011518   SAN DIEGO                    CA     92130  SFD          6.625     6.250  $3,863.17      180   1-Feb-14   $    435,674.18
5011521   BUFFALO GROVE                IL     60089  SFD          6.875     6.250  $2,452.60      180   1-Mar-14   $    271,852.29
5011526   WESTWOOD                     MA     02090  SFD          5.875     5.608  $3,432.19      180   1-Dec-13   $    402,805.41
5011536   MARTINEZ                     CA     94553  SFD          6.500     6.233  $3,345.06      180   1-Mar-14   $    381,463.03
5011570   MCLEAN                       VA     22101  SFD          6.875     6.250  $3,175.01      180   1-Feb-14   $    352,574.17
5011581   SARATOGA                     CA     95070  SFD          6.750     6.250  $2,345.02      180   1-Mar-14   $    262,974.69
5011593   POWAY                        CA     92064  SFD          6.750     6.250  $2,456.51      180   1-Mar-14   $    275,804.95
5011646   OREFIELD                     PA     18069  SFD          6.500     6.233  $4,137.76      180   1-Mar-14   $    467,739.64
5011775   PALMHURST                    TX     78572  SFD          6.625     6.250  $2,823.63      180   1-Apr-14   $    320,375.50
5011852   LA CRESCENTA                 CA     91214  SFD          6.250     5.983  $2,572.27      180   1-Feb-14   $    296,954.89
5011889   HUTCHINSON                   KS     67502  SFD          6.625     6.250  $3,291.60      180   1-Mar-14   $    372,449.58
5012018   CHARLESTON                   SC     29401  SFD          6.625     6.250  $3,950.98      180   1-Mar-14   $    447,058.70
5012050   LEXINGTON                    KY     40502  SFD          6.625     6.250  $2,329.54      180   1-Apr-14   $    264,460.28
5012072   ENGLEWOOD                    CO     80111  SFD          6.625     6.250  $2,941.28      180   1-Feb-14   $    331,706.48
5012084   SCOTTSDALE                   AZ     85259  SFD          6.625     6.250  $3,125.66      180   1-Apr-14   $    354,839.76
5012577   SAN CARLOS                   CA     94070  SFD          7.000     6.250  $3,183.65      180   1-May-14   $    354,200.00
5012888   LLOYD NECK                   NY     11743  SFD          7.125     6.250  $3,215.70      180   1-Oct-13   $    347,105.27
5012918   KATY                         TX     77494  SFD          6.875     6.250  $2,809.35      180   1-Nov-13   $    308,884.51
5012922   WICHITA                      KS     67205  SFD          6.750     6.250  $2,433.50      180   1-Feb-14   $    272,325.14
5012951   WICHITA                      KS     67208  SFD          6.875     6.250  $3,924.16      180   1-Feb-14   $    427,691.22
5012959   HARVARD                      MA     01451  SFD          6.375     6.108  $2,581.52      180   1-Feb-14   $    295,700.09
5013618   SANBORNTON                   NH     03269  SFD          7.000     6.250  $2,875.36      180   1-Feb-14   $    316,854.48
5013720   MIDDLEVILLE                  MI     49333  SFD          7.375     6.250  $2,391.80      180   1-Sep-13   $    253,510.57
5013746   SAN DIEGO                    CA     92107  SFD          6.375     6.108  $2,731.03      180   1-Feb-14   $    312,826.34
5013850   DOVE CANYON                  CA     92679  SFD          6.625     6.250  $2,871.04      180   1-Feb-14   $    323,785.14
5014098   SAN FRANCISCO                CA     94123  LCO          6.500     6.233  $2,961.33      180   1-May-14   $    339,950.00
5014112   SHADY SIDE                   MD     20764  SFD          6.625     6.250  $5,706.96      180   1-Feb-14   $    643,609.60
5014524   SPRINGFIELD                  MO     65810  SFD          6.750     6.250  $5,751.91      180   1-Mar-14   $    645,796.89
5014546   BOYNTON BEACH                FL     33436  SFD          6.500     6.233  $2,613.33      180   1-May-14   $    300,000.00
5014637   SAN JOSE                     CA     95148  SFD          6.750     6.250  $2,698.98      180   1-May-14   $    305,000.00
5014990   SCOTTSDALE                   AZ     85258  SFD          6.625     6.250  $2,396.92      180   1-Apr-14   $    272,110.27
5015043   SCOTTSDALE                   AZ     85260  SFD          6.375     6.108  $2,217.67      180   1-Apr-14   $    255,745.52
5015072   SARATOGA                     CA     95070  SFD          7.125     6.250  $4,529.16      180   1-Apr-14   $    498,439.59
5015073   RALEIGH                      NC     27608  SFD          6.500     6.233  $4,878.20      180   1-Apr-14   $    558,155.13
5015234   SAN JOSE                     CA     95135  SFD          6.875     6.250  $2,545.35      180   1-Apr-14   $    283,151.93
5015358   CERRITOS                     CA     90703  SFD          6.875     6.250  $2,809.34      180   1-Dec-13   $    307,878.42
5015456   BRISTOL                      ME     04564  SFD          7.250     6.250  $5,591.29      180   1-Sep-13   $    597,050.10
5015495   SAN JOSE                     CA     95148  SFD          6.750     6.250  $2,734.37      180   1-Apr-14   $    308,003.76
5015765   CHARLOTTESVILLE              VA     22901  SFD          6.875     6.250  $2,682.70      180   1-Apr-14   $    299,840.63
5015822   PALM SPRINGS                 CA     92264  SFD          6.750     6.250  $2,227.32      180   1-Apr-14   $    250,888.49
5015943   SAN MARINO                   CA     91108  SFD          6.625     6.250  $4,038.77      180   1-Mar-14   $    456,790.46
5016050   HANFORD                      CA     93230  SFD          6.875     6.250  $2,648.81      180   1-Apr-14   $    296,052.75
5016073   HAPPY VALLEY                 OR     97236  SFD          6.875     6.250  $4,022.26      180   1-Apr-14   $    449,561.59
5016075   BEVERLY HILLS                CA     90211  SFD          6.625     6.250  $3,424.18      180   1-Apr-14   $    388,728.94
5016096   DAVIDSONVILLE                MD     21035  SFD          6.750     6.250  $2,916.66      180   1-Apr-14   $    328,537.34
5016116   KENNEBUNKPORT                ME     04046  SFD          6.750     6.250  $2,654.73      180   1-Apr-14   $    299,032.77
5016320   FARGO                        ND     58104  SFD          6.875     6.250  $4,013.34      180   1-Apr-14   $    448,564.79
5017107   SAN JOSE                     CA     95135  SFD          6.875     6.250  $2,416.93      180   1-May-14   $    271,000.00
5017304   SALT LAKE CITY               UT     84103  SFD          7.250     6.250  $2,957.68      180   1-May-14   $    324,000.00
5017409   LA JOLLA                     CA     92037  SFD          6.625     6.250  $8,779.94      180   1-May-14   $  1,000,000.00
5018115   FORT MYERS BEACH             FL     33931  SFD          6.750     6.250  $2,814.02      180   1-May-14   $    318,000.00
5018909   CAMARILLO                    CA     93012  SFD          6.750     6.250  $3,672.38      180   1-Apr-14   $    413,662.00
5018951   ANAHEIM                      CA     92825  SFD          6.875     6.250  $4,133.75      180   1-May-14   $    463,500.00
5019415   FAIRFAX                      VA     22032  SFD          6.625     6.250  $2,651.55      180   1-May-14   $    302,000.00
5021015   SAN FRANCISCO                CA     94127  SFD          7.000     6.250  $4,458.19      180   1-Apr-14   $    494,435.15
5021762   LOS ALTOS                    CA     94024  SFD          6.750     6.250  $3,097.19      180   1-Apr-14   $    348,871.56
5021807   LOS ALAMITOS                 CA     90720  SFD          7.125     6.250  $2,400.46      180   1-Apr-14   $    264,172.98
5021853   IRVINE                       CA     92606  SFD          7.000     6.250  $2,885.24      180   1-May-14   $    321,000.00
5021919   LOS ANGELES                  CA     91607  SFD          6.750     6.250  $2,283.07      180   1-May-14   $    258,000.00
5022371   DALLAS                       TX     75218  SFD          6.750     6.250  $3,005.16      180   1-May-14   $    339,600.00
5023198   REDLANDS                     CA     92374  SFD          6.750     6.250  $4,138.72      180   1-Apr-14   $    466,192.10
5023784   CAMARILLO                    CA     93012  SFD          6.750     6.250  $3,893.61      180   1-Apr-14   $    438,581.39
5024398   DENVER                       CO     80220  SFD          6.875     6.250  $2,140.46      180   1-Jul-13   $    231,890.68
6886076   ARGYLE                       TX     76226  SFD          7.375     6.250  $3,385.32      180   1-Mar-14   $    365,745.79
6902261   EL PASO                      TX     79912  SFD          6.875     6.250  $3,567.42      180   1-Feb-14   $    396,145.07
6915530   GRAND JUNCTION               CO     81503  SFD          7.000     6.250  $4,134.61      180   1-Mar-14   $    457,088.98
6954367   TAMPA                        FL     33626  SFD          7.250     6.250  $2,432.37      180   1-Mar-14   $    264,804.95
6973124   MARLBORO                     NJ     07751  SFD          6.875     6.250  $3,121.49      180   1-Mar-14   $    347,761.04
6986500   FORT COLLINS                 CO     80525  SFD          6.625     6.250  $2,765.68      180   1-Mar-14   $    312,941.09
7060887   WOODBURY                     MN     55125  PUD          6.750     6.250  $2,831.71      180   1-Mar-14   $    317,930.78
7069157   ROCKVILLE                    MD     20850  PUD          6.625     6.250  $3,950.97      180   1-Mar-14   $    447,058.71
7076914   POTOMAC                      MD     20854  SFD          6.750     6.250  $4,424.55      180   1-Apr-14   $    498,387.95
7126568   GREENSBORO                   NC     27455  PUD          6.750     6.250  $2,698.97      180   1-Mar-14   $    302,725.06
7133213   ROCHESTER                    MN     55902  SFD          6.750     6.250  $3,059.75      180   1-Mar-14   $    343,534.15
7189918   BROOKFIELD                   WI     53045  SFD          6.750     6.250  $2,611.37      180   1-Feb-14   $    292,229.62
7226323   CLEARWATER                   FL     33756  SFD          6.875     6.250  $3,103.65      180   1-Apr-14   $    346,890.10
7375635   VIENNA                       VA     22181  SFD          6.750     6.250  $5,309.46      180   1-Mar-14   $    596,029.15
7378619   CASTINE                      ME     04421  SFD          7.000     6.250  $3,595.31      180   1-Feb-14   $    396,191.94
7383619   EAU CLAIRE                   WI     54701  SFD          7.250     6.250  $3,457.47      180   1-Apr-14   $    377,580.81
7391889   DANVILLE                     CA     94526  SFD          6.375     6.108  $4,182.97      180   1-Mar-14   $    480,476.40
7402189   SAN CARLOS                   CA     94070  SFD          6.875     6.250  $3,567.42      180   1-Mar-14   $    397,441.19
7404688   HONOLULU                     HI     96821  SFD          7.125     6.250  $4,302.70      180   1-Mar-14   $    472,026.42
7443009   LAS VEGAS                    NV     89117  SFD          6.875     6.250  $3,424.72      180   1-Mar-14   $    381,543.54
7443031   SAN CLEMENTE                 CA     92672  LCO          7.000     6.250  $3,038.04      180   1-Mar-14   $    335,861.04
7444764   MEQUON                       WI     53092  SFD          7.250     6.250  $3,252.68      156   1-Apr-12   $    326,728.99
7446886   HEALDSBURG                   CA     95448  SFD          6.750     6.250  $3,079.49      180   1-Mar-14   $    345,749.71
7453262   LAS VEGAS                    NV     89113  PUD          6.375     6.108  $2,635.96      180   1-Jan-14   $    300,904.92
7454989   AUBREY                       TX     76227  SFD          6.625     6.250  $2,177.42      180   1-Jan-14   $    244,732.29
7504166   SPRING                       TX     77379  SFD          6.750     6.250  $2,920.20      180   1-Feb-14   $    326,571.28
7505901   NORTHRIDGE                   CA     91324  SFD          6.875     6.250  $3,135.76      180   1-Mar-14   $    349,350.81
7509981   MIDLAND                      TX     79707  SFD          6.875     6.250  $2,448.14      180   1-Apr-14   $    273,624.52
7528995   LOS ANGELES                  CA     91364  SFD          6.875     6.250  $7,357.80      180   1-Feb-14   $    817,060.98
7541156   AUDUBON                      MN     56511  SFD          7.125     6.250  $4,159.58      180   1-Mar-14   $    456,325.33
7543672   BOISE                        ID     83709  SFD          6.875     6.250  $4,433.87      120   1-May-09   $    384,000.00
7546260   COLORADO SPRINGS             CO     80906  SFD          7.125     6.250  $3,091.15      180   1-Mar-14   $    339,113.72
7547880   SAN JOSE                     CA     95122  SFD          6.875     6.250  $2,497.19      180   1-Apr-14   $    279,106.98
7551816   TUCSON                       AZ     85742  PUD          6.625     6.250  $3,329.35      180   1-Apr-14   $    375,556.69
7552349   TUCSON                       AZ     85718  SFD          7.125     6.250  $4,076.24      180   1-Feb-14   $    445,761.85
7554575   DOWNINGTOWN                  PA     19335  SFD          7.250     6.250  $3,058.09      180   1-Apr-14   $    333,965.87
7555121   TULSA                        OK     74114  SFD          7.125     6.250  $3,619.07      144   1-Apr-11   $    348,106.98
7556587   SAN FRANCISCO                CA     94122  MF2          6.875     6.250  $3,487.15      180   1-Mar-14   $    388,498.76
7556924   COLORADO CITY                TX     79512  SFD          6.625     6.250  $3,345.16      180   1-Mar-14   $    373,794.54
7557448   GULF STREAM                  FL     33483  SFD          6.625     6.250  $8,779.93      180   1-Apr-14   $    996,739.90
7561541   FORT COLLINS                 CO     80525  PUD          6.875     6.250  $2,992.93      180   1-Mar-14   $    333,438.25
7563613   TEMPLETON                    CA     93465  SFD          6.750     6.250  $4,006.87      180   1-Mar-14   $    449,872.05
7565867   ANACORTES                    WA     98221  PUD          6.375     6.108  $2,592.75      180   1-Mar-14   $    297,996.69
7570484   SAN JUAN CAPISTRA            CA     92675  SFD          6.875     6.250  $4,861.09      120   1-Mar-09   $    416,087.75
7570576   ROSEMONT                     PA     19010  SFD          6.125     5.858  $5,180.53      120   1-Mar-09   $    458,361.25
7571250   ALPHARETTA                   GA     30005  SFD          6.500     6.233  $2,970.48      180   1-Feb-14   $    337,611.52
7571453   ALEXANDRIA                   VA     22314  PUD          6.500     6.233  $3,484.43      180   1-May-14   $    400,000.00
7572912   WATERLOO                     NE     68069  SFD          6.875     6.250  $3,861.73      180   1-Mar-14   $    430,230.09
7573652   ATLANTA                      GA     30328  PUD          6.500     6.233  $2,613.32      180   1-Mar-14   $    292,968.31
7573932   LYONS                        CO     80540  PUD          6.875     6.250  $2,616.70      180   1-Mar-14   $    291,523.12
7575475   HIDDEN HILLS                 CA     91302  SFD          6.625     6.250  $4,346.07      180   1-Mar-14   $    490,101.51
7575878   SOUTH PASADENA               CA     91030  SFD          6.875     6.250  $6,153.79      180   1-Mar-14   $    685,586.07
7576408   WEST HARTFORD                CT     06117  SFD          6.250     5.983  $3,601.18      180   1-Apr-14   $    418,586.32
7578187   GREELEY                      CO     80634  SFD          6.375     6.108  $3,016.23      180   1-Feb-14   $    345,494.94
7578896   MINNETONKA                   MN     55345  SFD          6.625     6.250  $2,405.70      180   1-Mar-14   $    272,209.09
7580948   ROWLAND HEIGHTS              CA     91748  SFD          7.125     6.250  $2,371.47      180   1-Apr-14   $    260,982.97
7581274   SNOWMASS VILLAGE             CO     81615  PUD          6.625     6.250  $4,214.37      180   1-Mar-14   $    476,862.62
7586920   TIBURON                      CA     94920  SFD          6.875     6.250  $3,255.27      180   1-Mar-14   $    362,665.09
7587523   WESTBORO                     MA     01581  SFD          7.000     6.250  $2,921.19      180   1-Mar-14   $    322,404.10
7588202   PLAYA DEL REY                CA     90293  SFD          6.875     6.250  $3,620.93      180   1-Mar-14   $    403,402.80
7588472   MARYVILLE                    TN     37803  SFD          6.625     6.250  $5,206.50      180   1-Apr-14   $    591,067.35
7589418   DEL REY OAKS                 CA     93940  SFD          7.000     6.250  $2,292.01      180   1-Apr-14   $    254,195.49
7590969   TELLURIDE                    CO     81435  SFD          7.250     6.250  $5,933.61      180   1-Mar-14   $    645,974.82
7593112   LOS ALTOS                    CA     94022  SFD          6.875     6.250  $3,790.38      180   1-Mar-14   $    422,281.27
7595956   MORGAN HILL                  CA     95037  SFD          6.750     6.250  $2,544.11      180   1-Mar-14   $    285,640.94
7596404   WATERTOWN                    SD     57201  SFD          7.125     6.250  $2,608.79      180   1-Mar-14   $    286,197.08
7598945   ALEXANDRIA                   VA     22306  SFD          6.875     6.250  $3,370.76      180   1-Mar-14   $    375,532.25
7600155   MILLBURN TWP                 NJ     07078  SFD          7.125     6.250  $3,170.41      180   1-Mar-14   $    347,808.95
7600671   SAN RAMON                    CA     94583  SFD          6.000     5.733  $4,219.28      180   1-Mar-14   $    496,552.84
7602109   CARBONDALE                   CO     81623  SFD          6.750     6.250  $2,796.31      180   1-Mar-14   $    313,956.65
7603300   LAFAYETTE                    CA     94549  SFD          6.750     6.250  $4,459.94      180   1-Apr-14   $    501,835.00
7604172   DEL MAR                      CA     92014  SFD          6.125     5.858  $5,103.75      180   1-Mar-14   $    595,907.08
7604807   TAMPA                        FL     33609  SFD          6.750     6.250  $2,942.32      180   1-Apr-14   $    331,427.99
7605424   MOUND                        MN     55364  SFD          6.750     6.250  $5,245.74      180   1-Apr-14   $    590,888.76
7605454   ST CHARLES                   IL     60174  SFD          6.875     6.250  $3,299.07      156   1-Mar-12   $    336,935.93
7605572   STURGEON BAY                 WI     54235  SFD          6.625     6.250  $3,195.90      180   1-Mar-14   $    361,389.95
7605709   FRIDAY HARBOR                WA     98250  SFD          6.875     6.250  $3,148.25      180   1-Apr-14   $    351,874.15
7605808   SNOWMASS VILLAGE             CO     81615  PUD          7.000     6.250  $5,797.44      180   1-Apr-14   $    642,965.06
7606033   PROSPECT                     KY     40059  SFD          6.750     6.250  $8,849.10      180   1-Apr-14   $    996,775.90
7606830   VIRGINIA BEACH               VA     23454  SFD          6.500     6.233  $2,482.66      180   1-Apr-14   $    284,061.09
7607445   BAINBRIDGE ISLAND            WA     98110  SFD          7.000     6.250  $6,291.80      180   1-Mar-14   $    695,570.18
7607638   PARK CITY                    UT     84060  SFD          7.000     6.250  $8,162.26      180   1-Apr-14   $    905,234.99
7607852   BIG SPRING                   TX     79720  SFD          6.875     6.250  $2,963.19      180   1-Mar-14   $    329,521.15
7610070   ALBUQUERQUE                  NM     87122  SFD          6.750     6.250  $3,033.47      180   1-Apr-14   $    341,694.78
7610218   POTOMAC                      MD     20854  PUD          6.625     6.250  $4,021.21      180   1-Mar-14   $    455,006.42
7610932   SAN FRANCISCO                CA     94114  SFD          7.125     6.250  $3,922.25      180   1-Apr-14   $    431,648.69
7611211   OVERLAND PARK                KS     66213  PUD          6.875     6.250  $2,675.56      180   1-Mar-14   $    298,056.32
7611473   DENVER                       CO     80210  SFD          6.625     6.250  $2,979.47      180   1-Apr-14   $    338,244.02
7611773   LAREDO                       TX     78041  PUD          6.625     6.250  $2,424.80      180   1-Apr-14   $    275,274.92
7611787   NORTHBROOK                   IL     60062  SFD          6.875     6.250  $2,616.25      180   1-Mar-14   $    291,473.44
7612540   WALNUT CREEK                 CA     94596  SFD          6.750     6.250  $3,442.30      180   1-Mar-14   $    382,462.10
7614551   SAN DIEGO                    CA     92121  SFD          6.375     6.108  $2,723.69      180   1-Apr-14   $    314,100.54
7615181   BINGHAMTON                   NY     13901  SFD          6.875     6.250  $4,459.27      180   1-Mar-14   $    496,801.49
7616703   ATLANTA                      GA     30339  SFD          6.750     6.250  $2,611.37      180   1-Apr-14   $    294,148.57
7617449   KIRKLAND                     WA     98033  SFD          6.750     6.250  $2,566.24      180   1-Mar-14   $    288,124.76
7617682   DULUTH                       MN     55812  SFD          6.875     6.250  $3,032.30      180   1-Mar-14   $    337,825.02
7619239   ASPEN                        CO     81611  LCO          6.750     6.250  $2,875.96      180   1-Apr-14   $    323,952.17
7619350   AUSTIN                       TX     78731  PUD          6.625     6.250  $4,389.97      180   1-Apr-14   $    498,370.45
7620010   SAN JOSE                     CA     95123  SFD          6.875     6.250  $3,479.12      180   1-Apr-14   $    388,855.83
7620051   SAN DIEGO                    CA     92130  PUD          6.500     6.233  $4,389.51      180   1-Apr-14   $    502,239.95
7622928   WILMINGTON                   NC     28409  SFD          6.375     6.108  $4,070.62      180   1-Mar-14   $    467,854.81
7623130   MINNETRISTA                  MN     55364  SFD          6.875     6.250  $3,152.70      180   1-Apr-14   $    352,372.56
7624184   WAUPACA                      WI     54981  SFD          7.125     6.250  $3,116.06      180   1-Apr-14   $    342,926.44
7624489   SAN DIEGO                    CA     92131  SFD          7.000     6.250  $3,775.08      180   1-Apr-14   $    418,674.92
7624946   METAIRIE                     LA     70005  SFD          6.500     6.233  $4,079.93      180   1-Apr-14   $    466,818.03
7624989   DANA POINT                   CA     92629  SFD          7.000     6.250  $4,646.94      180   1-Apr-14   $    515,368.89
7625014   ASPEN                        CO     81611  SFD          7.250     6.250  $9,128.63      180   1-Apr-14   $    996,913.04
7625071   BARRINGTON                   IL     60010  SFD          6.875     6.250  $2,586.38      180   1-Apr-14   $    288,301.09
7625141   BOULDER                      CO     80302  SFD          6.750     6.250  $3,362.66      180   1-Apr-14   $    378,774.84
7625244   PARK CITY                    UT     84098  SFD          6.875     6.250  $2,853.93      180   1-Mar-14   $    317,952.96
7626100   OMAHA                        NE     68164  SFD          7.250     6.250  $4,492.20      180   1-Apr-14   $    490,580.90
7626572   LA JOLLA                     CA     92037  SFD          6.875     6.250  $8,026.69      180   1-Apr-14   $    897,129.56
7626990   LINCOLN                      NE     68516  SFD          6.750     6.250  $8,849.10      180   1-Apr-14   $    996,775.90
7627090   RANCHO PALOS VERDES          CA     90275  SFD          7.125     6.250  $2,556.26      180   1-Apr-14   $    278,947.58
7628778   LAGUNA NIGUEL                CA     92677  PUD          7.125     6.250  $4,982.07      180   1-Apr-14   $    543,265.63
7630343   STILLWATER                   MN     55082  SFD          6.875     6.250  $3,389.05      180   1-Apr-14   $    378,788.03
7631018   OAKLAND                      CA     94619  SFD          6.875     6.250  $4,138.20      180   1-Apr-14   $    462,520.13
7631664   OMAHA                        NE     68116  SFD          7.125     6.250  $2,798.11      180   1-Apr-14   $    307,935.98
7634854   ELK RIVER                    MN     55330  SFD          6.875     6.250  $2,573.00      180   1-May-14   $    288,500.00
7637019   FALLBROOK                    CA     92028  SFD          7.250     6.250  $3,834.02      180   1-Apr-14   $    418,703.48
7637346   BELLEVUE                     WA     98005  SFD          6.750     6.250  $2,477.75      180   1-Apr-14   $    279,097.25
7637868   HUNTINGTON BEACH             CA     92646  PUD          6.875     6.250  $3,714.57      180   1-Apr-14   $    415,171.63
7638326   WASHINGTON                   DC     20016  SFD          6.500     6.233  $4,401.70      180   1-Apr-14   $    503,634.34
7638847   TEMECULA                     CA     92592  SFD          7.000     6.250  $3,523.41      180   1-Apr-14   $    390,763.26
7640091   LARKSPUR                     CA     94939  SFD          7.000     6.250  $3,091.97      180   1-Apr-14   $    341,914.70
7642822   RENO                         NV     89509  PUD          6.875     6.250  $2,421.38      180   1-Apr-14   $    270,634.09
7643270   WESTPORT                     CT     06880  SFD          7.125     6.250  $2,907.72      180   1-Apr-14   $    319,998.22
7643343   HAVERFORD                    PA     19041  SFD          6.750     6.250  $4,247.57      180   1-Apr-14   $    478,452.43
7645265   BROOKLYN PARK                MN     55443  SFD          7.000     6.250  $3,127.02      180   1-Apr-14   $    346,802.40
7645649   BELLEVUE                     WA     98006  SFD          7.250     6.250  $3,103.73      180   1-Apr-14   $    338,950.44
7651030   DUCK                         NC     27949  PUD          6.625     6.250  $3,111.61      180   1-May-14   $    354,400.00
7652689   PARK CITY                    UT     84098  SFD          6.625     6.250  $2,414.48      180   1-Apr-14   $    274,103.75
7652867   WALKER                       MN     56484  SFD          7.000     6.250  $4,844.68      180   1-Apr-14   $    537,299.49
7653602   BRECKENRIDGE                 CO     80424  LCO          6.875     6.250  $2,497.19      180   1-Apr-14   $    279,106.98
7653675   WEST LAKELAND                MN     55043  SFD          6.875     6.250  $2,720.16      180   1-Apr-14   $    304,027.24
7655203   FAIRFAX STATION              VA     22039  SFD          6.250     5.983  $2,220.73      180   1-Apr-14   $    258,128.23
7657938   PARK CITY                    UT     84060  SFD          6.875     6.250  $8,918.54      180   1-Apr-14   $    996,810.63
7658312   IRVINE                       CA     92602  SFD          6.625     6.250  $2,317.20      180   1-Apr-14   $    263,059.86
7660705   SAGLE                        ID     83860  SFD          6.875     6.250  $4,637.64      180   1-Apr-14   $    518,341.53
7661608   INDIANAPOLIS                 IN     46278  SFD          7.125     6.250  $2,692.13      180   1-Apr-14   $    296,272.50
7661744   PARK CITY                    UT     84060  PUD          7.000     6.250  $2,921.19      180   1-Apr-14   $    323,974.64
7664317   SHINGLE SPRINGS              CA     95682  SFD          6.875     6.250  $2,528.14      180   1-May-14   $    283,470.00
7666980   HOUSTON                      TX     77056  SFD          6.500     6.233  $2,613.32      180   1-Apr-14   $    299,011.68
7667063   BELVEDERE                    CA     94920  SFD          6.875     6.250  $5,172.75      180   1-May-14   $    580,000.00
7669561   DEL MAR                      CA     92014  SFD          6.875     6.250  $5,484.90      180   1-May-14   $    615,000.00
7670513   LOS ALTOS                    CA     94024  SFD          7.250     6.250  $4,107.88      180   1-Apr-14   $    448,610.87
7674932   GREENWOOD VILLAGE            CO     80121  SFD          7.250     6.250  $2,510.37      180   1-May-14   $    275,000.00
7677582   STEAMBOAT SPRINGS            CO     80477  SFD          6.875     6.250  $3,183.92      180   1-Apr-14   $    355,861.39
7679352   MINNEAPOLIS                  MN     55416  SFD          6.750     6.250  $2,782.16      180   1-Apr-14   $    313,386.34
7679530   PHOENIX                      AZ     85254  PUD          7.000     6.250  $2,912.20      180   1-Apr-14   $    322,977.80
7682968   THOUSAND OAKS                CA     91362  SFD          6.875     6.250  $3,264.19      180   1-Apr-14   $    364,832.69
7686431   CARMICHAEL                   CA     95608  SFD          6.875     6.250  $7,803.73      180   1-Apr-14   $    872,209.29
7690776   FARMINGTON                   UT     84025  SFD          6.875     6.250  $2,853.93      180   1-May-14   $    320,000.00
7692253   LAS VEGAS                    NV     89107  PUD          6.875     6.250  $2,274.23      180   1-May-14   $    255,000.00
7692549   APTOS                        CA     95003  LCO          7.250     6.250  $2,313.19      180   1-May-14   $    253,400.00
7698249   LAGUNA NIGUEL                CA     92677  PUD          6.875     6.250  $3,567.42      180   1-May-14   $    400,000.00
7710472   SIOUX FALLS                  SD     57103  SFD          7.000     6.250  $6,426.62      180   1-May-14   $    715,000.00

                                                                                                                   $251,652,239.84
</TABLE>


<TABLE>
<CAPTION>
(i)       (x)    (xi)       (xii)       (xiii)    (xiv)        (xv)      (xvi)
- --------  -----  ---------  ----------  --------  -----------  --------  --------

MORTGAGE                    MORTGAGE              T.O.P.       MASTER    FIXED
LOAN                        INSURANCE   SERVICE   MORTGAGE     SERVICE   RETAINED
NUMBER    LTV    SUBSIDY    CODE        FEE       LOAN         FEE       YIELD
- --------  -----  ---------  ----------  --------  -----------  --------  --------
<S>       <C>    <C>        <C>         <C>       <C>          <C>       <C>
4792116   79.47                          0.250                   0.017     0.000
4794110   50.00                          0.250                   0.017     0.233
4840620   40.00                          0.250                   0.017     0.233
4894339   72.30                          0.250                   0.017     0.733
4894989   67.47                          0.250                   0.017     0.108
4902770   84.00                   24     0.250                   0.017     0.000
4914659   75.00                          0.250                   0.017     0.108
4915932   90.00                   12     0.250                   0.017     0.358
4917485   68.36                          0.250                   0.017     0.000
4919254   61.95                          0.250                   0.017     0.233
4919923   38.30                          0.250                   0.017     0.000
4920027   44.21                          0.250                   0.017     0.358
4920942   70.00                          0.250                   0.017     0.000
4924823   57.00                          0.250                   0.017     0.358
4925789   53.46                          0.250                   0.017     0.000
4930030   73.17                          0.250                   0.017     0.858
4932721   51.44                          0.250                   0.017     0.358
4934729   20.60                          0.250                   0.017     0.983
4934902   62.44                          0.250                   0.017     0.000
4937080   53.73                          0.250                   0.017     0.233
4937599   63.44                          0.250                   0.017     0.108
4937857   74.43                          0.250                   0.017     0.000
4938386   86.25                   06     0.250                   0.017     0.358
4939438   60.11                          0.250                   0.017     0.108
4939663   76.43                          0.250                   0.017     0.000
4939728   84.13                   11     0.250                   0.017     0.733
4942433   59.83                          0.250                   0.017     0.733
4944364   57.84                          0.250                   0.017     0.108
4945209   75.00                          0.250                   0.017     0.858
4945407   80.00                          0.250                   0.017     0.233
4946268   36.18                          0.250                   0.017     0.358
4947744   80.00                          0.250                   0.017     0.233
4948087   36.92                          0.250                   0.017     0.233
4948148   66.35                          0.250                   0.017     0.233
4948158   67.18                          0.250                   0.017     0.233
4948393   57.55                          0.250                   0.017     0.108
4949273   75.00                          0.250                   0.017     0.858
4949611   70.00                          0.250                   0.017     0.108
4949932   67.50                          0.250                   0.017     0.108
4950359   90.00                   11     0.250                   0.017     0.358
4951790   71.55                          0.250                   0.017     0.358
4952213   80.00                          0.250                   0.017     0.000
4953671   78.58                          0.250                   0.017     0.358
4954070   75.00                          0.250                   0.017     0.233
4954618   43.68                          0.250                   0.017     0.000
4955074   55.24                          0.250                   0.017     0.483
4955983   67.74                          0.250                   0.017     0.483
4956432   80.00                          0.250                   0.017     0.000
4957430   53.83                          0.250                   0.017     0.483
4958003   30.00                          0.250                   0.017     0.233
4958102   52.68                          0.250                   0.017     0.233
4958149   57.23                          0.250                   0.017     0.000
4958332   61.13                          0.250                   0.017     0.483
4958811   75.00                          0.250                   0.017     0.483
4959043   67.54                          0.250                   0.017     0.000
4959088   62.78                          0.250                   0.017     0.358
4959125   44.59                          0.250                   0.017     0.233
4959452   46.88                          0.250                   0.017     0.108
4959472   79.98                          0.250                   0.017     0.858
4959829   90.00  GD 1YR           33     0.250                   0.017     0.000
4959966   68.81                          0.250                   0.017     0.108
4960533   51.49                          0.250                   0.017     0.108
4960617   38.84                          0.250                   0.017     0.608
4961079   52.24                          0.250                   0.017     0.358
4961194   50.00                          0.250                   0.017     0.233
4962215   70.00                          0.250                   0.017     0.358
4962315   38.64                          0.250                   0.017     0.358
4962449   67.30                          0.250                   0.017     0.000
4962483   53.54                          0.250                   0.017     0.000
4962557   69.44                          0.250                   0.017     0.233
4962731   89.99                   12     0.250                   0.017     0.358
4963109   53.33                          0.250                   0.017     0.000
4963502   63.64                          0.250                   0.017     0.233
4963536   71.29                          0.250                   0.017     0.108
4963851   89.85                   33     0.250                   0.017     0.000
4964382   72.50                          0.250                   0.017     0.483
4964848   67.61                          0.250                   0.017     0.358
4965025   69.47                          0.250                   0.017     0.358
4965105   45.45                          0.250                   0.017     0.000
4965610   57.27                          0.250                   0.017     0.233
4965993   68.75                          0.250                   0.017     0.000
4966006   75.00                          0.250                   0.017     0.108
4966313   77.55                          0.250                   0.017     0.483
4966315   53.98                          0.250                   0.017     0.358
4966424   76.67                          0.250                   0.017     0.733
4966692   80.00                          0.250                   0.017     0.233
4967294   73.68                          0.250                   0.017     0.000
4967415   80.00                          0.250                   0.017     0.000
4967453   61.09                          0.250                   0.017     0.358
4967547   68.00                          0.250                   0.017     0.233
4967787   89.08                   24     0.250                   0.017     0.108
4967976   65.10                          0.250                   0.017     0.000
4968071   30.94                          0.250                   0.017     0.358
4968557   62.50                          0.250                   0.017     0.608
4969305   36.67                          0.250                   0.017     0.233
4969326   74.95                          0.250                   0.017     0.733
4969369   45.52                          0.250                   0.017     0.108
4969394   63.16                          0.250                   0.017     0.000
4969407   70.00                          0.250                   0.017     0.108
4969480   59.98                          0.250                   0.017     0.358
4969744   52.84                          0.250                   0.017     0.108
4969772   64.52                          0.250                   0.017     0.358
4969991   43.17                          0.250                   0.017     0.000
4969992   31.80                          0.250                   0.017     0.358
4970205   57.10                          0.250                   0.017     0.000
4970834   59.50                          0.250                   0.017     0.000
4971077   63.46                          0.250                   0.017     0.358
4971088   69.05                          0.250                   0.017     0.733
4971118   74.99                          0.250                   0.017     0.358
4971176   59.21                          0.250                   0.017     0.108
4971207   45.79                          0.250                   0.017     0.358
4971369   80.00                          0.250                   0.017     0.983
4971573   51.43                          0.250                   0.017     0.483
4971745   80.00                          0.250                   0.017     0.108
4971771   51.20                          0.250                   0.017     0.233
4971798   70.00                          0.250                   0.017     0.483
4971873   59.78                          0.250                   0.017     0.000
4972117   26.55                          0.250                   0.017     0.233
4972120   50.55                          0.250                   0.017     0.000
4972370   68.13                          0.250                   0.017     0.608
4972414   24.87                          0.250                   0.017     0.733
4972416   80.00                          0.250                   0.017     0.108
4972565   48.66                          0.250                   0.017     0.358
4972596   65.93                          0.250                   0.017     0.483
4972799   69.86                          0.250                   0.017     0.358
4972977   89.80                   05     0.250                   0.017     0.000
4973092   68.57                          0.250                   0.017     0.358
4973225   47.62                          0.250                   0.017     0.983
4973264   66.30                          0.250                   0.017     0.000
4973965   35.48                          0.250                   0.017     0.858
4974133   80.00                          0.250                   0.017     0.233
4974287   63.27                          0.250                   0.017     0.358
4974407   62.50                          0.250                   0.017     0.483
4974489   69.33                          0.250                   0.017     0.358
4974688   88.62                   33     0.250                   0.017     0.358
4974815   79.41                          0.250                   0.017     0.000
4974877   43.48                          0.250                   0.017     0.000
4975201   56.93                          0.250                   0.017     0.108
4975516   80.00                          0.250                   0.017     0.000
4975631   79.78                          0.250                   0.017     0.000
4975642   77.27                          0.250                   0.017     0.108
4975653   80.00                          0.250                   0.017     0.108
4975729   41.98                          0.250                   0.017     0.483
4976194   74.15                          0.250                   0.017     0.983
4976672   70.71                          0.250                   0.017     0.358
4977082   66.36                          0.250                   0.017     0.233
4977162   70.00                          0.250                   0.017     0.483
4977449   37.83                          0.250                   0.017     0.233
4977456   76.91                          0.250                   0.017     0.483
4977468   89.06                   06     0.250                   0.017     0.483
4977477   74.80                          0.250                   0.017     0.608
4977483   61.26                          0.250                   0.017     0.233
4977530   58.50                          0.250                   0.017     0.483
4977583   63.64                          0.250                   0.017     0.108
4977810   66.73                          0.250                   0.017     0.608
4977885   73.33                          0.250                   0.017     0.358
4977914   33.61                          0.250                   0.017     0.608
4977945   65.79  GD 5YR                  0.250                   0.017     0.000
4978107   74.95                          0.250                   0.017     0.233
4978125   79.16                          0.250                   0.017     0.000
4978624   52.53                          0.250                   0.017     0.358
4978688   75.00                          0.250                   0.017     0.358
4979164   80.00                          0.250                   0.017     0.000
4979192   72.45                          0.250                   0.017     0.358
4979359   67.44                          0.250                   0.017     0.000
4979389   53.73                          0.250                   0.017     0.358
4979414   43.48                          0.250                   0.017     0.000
4979537   75.00                          0.250                   0.017     0.358
4979542   73.33                          0.250                   0.017     0.000
4979550   83.06                   01     0.250                   0.017     0.358
4979561   76.58                          0.250                   0.017     0.483
4979580   60.69                          0.250                   0.017     0.000
4979596   70.94                          0.250                   0.017     0.000
4979604   52.36                          0.250                   0.017     0.000
4979921   70.27                          0.250                   0.017     0.358
4980250   44.59                          0.250                   0.017     0.233
4980278   65.77                          0.250                   0.017     0.233
4980295   59.95                          0.250                   0.017     0.233
4980672   41.72                          0.250                   0.017     0.000
4980732   70.00                          0.250                   0.017     0.108
4980755   45.00                          0.250                   0.017     0.733
4980841   57.85                          0.250                   0.017     0.483
4980861   53.73                          0.250                   0.017     0.483
4980889   32.12                          0.250                   0.017     0.358
4980904   85.00                   06     0.250                   0.017     0.233
4981153   54.14                          0.250                   0.017     0.483
4981161   47.68                          0.250                   0.017     0.483
4981264   17.83                          0.250                   0.017     0.108
4981358   75.00                          0.250                   0.017     0.108
4981598   80.00                          0.250                   0.017     0.108
4981921   42.86                          0.250                   0.017     0.358
4982181   69.44                          0.250                   0.017     0.233
4982600   66.28                          0.250                   0.017     0.608
4982757   79.19                          0.250                   0.017     0.358
4983048   53.71                          0.250                   0.017     0.483
4983090   20.00                          0.250                   0.017     0.358
4983330   46.43                          0.250                   0.017     0.358
4983541   79.76                          0.250                   0.017     0.483
4983558   78.87                          0.250                   0.017     0.233
4983575   79.64                          0.250                   0.017     0.233
4983724   41.17                          0.250                   0.017     0.233
4983727   60.00                          0.250                   0.017     0.358
4984036   54.55                          0.250                   0.017     0.108
4984093   51.06                          0.250                   0.017     0.233
4984132   73.33                          0.250                   0.017     0.358
4984325   74.41                          0.250                   0.017     0.108
4984326   59.93                          0.250                   0.017     0.858
4984408   64.73                          0.250                   0.017     0.233
4984415   75.00                          0.250                   0.017     0.733
4984427   67.07                          0.250                   0.017     0.233
4984459   63.00                          0.250                   0.017     0.483
4984642   57.55                          0.250                   0.017     0.358
4984763   79.25                          0.250                   0.017     0.983
4984803   63.64                          0.250                   0.017     0.358
4984847   63.16                          0.250                   0.017     0.483
4984998   24.78                          0.250                   0.017     0.483
4985237   50.00                          0.250                   0.017     0.000
4985307   58.25                          0.250                   0.017     0.000
4985360   78.54                          0.250                   0.017     0.233
4985405   80.00                          0.250                   0.017     0.358
4985754   63.18                          0.250                   0.017     0.108
4985861   67.83  GD 1YR                  0.250                   0.017     0.000
4985887   64.22                          0.250                   0.017     0.483
4985888   37.61                          0.250                   0.017     0.608
4985894   40.11                          0.250                   0.017     0.233
4986259   61.54  GD 3YR                  0.250                   0.017     0.000
4986343   48.49                          0.250                   0.017     0.483
4986515   66.98                          0.250                   0.017     0.483
4986544   77.78                          0.250                   0.017     0.108
4986963   36.67                          0.250                   0.017     0.233
4987289   22.69                          0.250                   0.017     0.483
4987397   49.62                          0.250                   0.017     0.233
4987435   68.87                          0.250                   0.017     0.000
4987535   74.07                          0.250                   0.017     0.000
4987552   72.85                          0.250                   0.017     0.358
4987563   42.55                          0.250                   0.017     0.358
4987706   73.12                          0.250                   0.017     0.483
4987794   50.95                          0.250                   0.017     0.483
4987812   62.35                          0.250                   0.017     0.358
4987866   38.71                          0.250                   0.017     0.358
4987874   67.67                          0.250                   0.017     0.233
4987954   60.17                          0.250                   0.017     0.000
4988092   61.62                          0.250                   0.017     0.483
4988466   75.00                          0.250                   0.017     0.358
4988531   50.76                          0.250                   0.017     0.608
4988623   31.71                          0.250                   0.017     0.233
4988638   30.34                          0.250                   0.017     0.000
4988777   57.98                          0.250                   0.017     0.000
4988841   80.00                          0.250                   0.017     0.233
4988875   66.97                          0.250                   0.017     0.000
4988950   55.85                          0.250                   0.017     0.358
4989040   44.37                          0.250                   0.017     0.358
4989317   59.53                          0.250                   0.017     0.000
4989726   56.30                          0.250                   0.017     0.483
4990015   64.95                          0.250                   0.017     0.358
4990474   66.67                          0.250                   0.017     0.000
4990515   70.00                          0.250                   0.017     0.358
4990714   68.14                          0.250                   0.017     0.000
4990902   74.32                          0.250                   0.017     0.108
4990951   73.15                          0.250                   0.017     0.000
4991036   66.67                          0.250                   0.017     0.858
4991130   51.01                          0.250                   0.017     0.233
4991364   60.89                          0.250                   0.017     0.233
4991480   64.50                          0.250                   0.017     0.233
4991573   65.00                          0.250                   0.017     0.733
4991650   66.07                          0.250                   0.017     0.108
4991819   58.59                          0.250                   0.017     0.108
4991834   48.46                          0.250                   0.017     0.608
4991854   52.00                          0.250                   0.017     0.108
4991867   58.82                          0.250                   0.017     0.483
4991875   72.05                          0.250                   0.017     0.108
4992059   54.61                          0.250                   0.017     0.233
4992070   65.42                          0.250                   0.017     0.608
4992082   78.41                          0.250                   0.017     0.000
4992089   73.41                          0.250                   0.017     0.733
4992119   78.25                          0.250                   0.017     0.358
4992130   46.03                          0.250                   0.017     0.108
4992135   63.06                          0.250                   0.017     0.000
4992138   65.98                          0.250                   0.017     0.233
4992144   79.14                          0.250                   0.017     0.000
4992147   70.37                          0.250                   0.017     0.000
4992167   64.02                          0.250                   0.017     0.358
4992184   64.71                          0.250                   0.017     0.483
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7653675   67.75                          0.250                   0.017     0.358
7655203   70.00                          0.250                   0.017     0.000
7657938   66.89                          0.250                   0.017     0.358
7658312   80.00                          0.250                   0.017     0.108
7660705   68.97                          0.250                   0.017     0.358
7661608   79.25                          0.250                   0.017     0.608
7661744   58.98                          0.250                   0.017     0.483
7664317   89.99                   01     0.250                   0.017     0.358
7666980   80.00                          0.250                   0.017     0.000
7667063   17.35                          0.250                   0.017     0.358
7669561   68.33                          0.250                   0.017     0.358
7670513   28.13                          0.250                   0.017     0.733
7674932   32.93                          0.250                   0.017     0.733
7677582   59.50                          0.250                   0.017     0.358
7679352   80.00                          0.250                   0.017     0.233
7679530   80.00                          0.250                   0.017     0.483
7682968   78.71                          0.250                   0.017     0.358
7686431   70.00                          0.250                   0.017     0.358
7690776   58.18                          0.250                   0.017     0.358
7692253   63.75                          0.250                   0.017     0.358
7692549   70.00                          0.250                   0.017     0.733
7698249   18.39                          0.250                   0.017     0.358
7710472   65.00                          0.250                   0.017     0.483
</TABLE>



COUNT:                   672
WAC:             6.785525748
WAM:             177.6648777
WALTV:           62.39214714



<PAGE>


                                   EXHIBIT F-2

           [Schedule of Mortgage Loans Serviced by Other Servicers]


NASCOR
NMI / 1999-15  Exhibit F-2 (Part A)
15 YEAR FIXED RATE RELOCATION AND NON RELOCATION LOANS

<TABLE>
<CAPTION>
(i)       (ii)                                       (iii)     (iv)      (v)       (vi)       (vii)     (viii)     (ix)
- --------  ---------------------------  -----  -----  --------  --------  --------  ---------  --------  ---------  --------------
                                                                         NET                                       CUT-OFF
MORTGAGE                                                       MORTGAGE  MORTGAGE  CURRENT    ORIGINAL  SCHEDULED  DATE
LOAN                                          ZIP    PROPERTY  INTEREST  INTEREST  MONTHLY    TERM TO   MATURITY   PRINCIPAL
NUMBER    CITY                         STATE  CODE   TYPE      RATE      RATE      PAYMENT    MATURITY  DATE       BALANCE
- --------  ---------------------------  ------ -----  --------  --------  --------  ---------  --------  ---------  --------------
<S>       <C>                          <C>    <C>    <C>       <C>       <C>       <C>        <C>       <C>        <C>
4678152   BRENTWOOD                    TN     37027  SFD          7.875     6.250  $2,646.17      180   1-Jun-12   $   258,831.83
4678183   MCDONOUGH                    GA     30252  SFD          8.000     6.250  $2,285.92      180   1-Jul-12   $   222,879.06
4688208   NARRAGANSETT                 RI     02874  SFD          7.500     6.250  $2,329.11      180   1-Dec-12   $   237,682.70
4690876   KALISPELL                    MT     59901  SFD          7.125     6.250  $2,072.09      180   1-Nov-12   $   214,783.35
4798809   ATLANTA                      GA     30324  SFD          6.750     6.250  $2,336.23      180   1-Feb-13   $   250,724.79
4858925   CHICAGO                      IL     60613  SFD          7.000     6.250  $4,386.29      180   1-Jul-13   $   469,213.70
4859282   ST LOUIS                     MO     63131  SFD          7.000     6.250  $7,774.87      180   1-Jul-13   $   832,862.22
4931010   ENGLEWOOD CLIFFS             NJ     07632  SFD          7.125     6.250  $3,442.16      180   1-Sep-13   $   365,101.64
4947419   CHEVY CHASE                  MD     20815  SFD          7.250     6.250  $6,452.12      180   1-Aug-13   $   686,681.87
4947498   WOODBURY                     CT     06798  SFD          7.000     6.250  $2,726.15      180   1-Oct-13   $   296,483.34
4952662   COLUMBIA                     SC     29223  SFD          7.125     6.250  $3,804.50      180   1-Dec-13   $   413,367.96
4953754   INDIANAPOLIS                 IN     46260  SFD          7.125     6.250  $3,165.88      180   1-Apr-14   $   348,409.28
4959897   PHOENIX                      AZ     85044  SFD          6.875     6.250  $2,274.23      120   1-Mar-08   $   233,440.54
4962376   HOLMES                       NY     12531  SFD          8.000     6.250  $2,662.28      180   1-Dec-13   $   273,524.47
4966618   ATHENS                       GA     30606  SFD          7.625     6.250  $2,207.75      143   1-May-08   $   172,142.31
4966638   JACKSONVILLE                 FL     32210  SFD          6.375     6.108  $3,491.57      180   1-Dec-13   $   397,201.54
4966642   MARCO ISLAND                 FL     34145  SFD          6.375     6.108  $2,134.70      180   1-Dec-13   $   242,843.52
4966646   KNOXVILLE                    TN     37918  SFD          6.375     6.108  $2,311.87      180   1-Dec-13   $   262,998.53
4966652   MACON                        GA     31220  SFD          6.500     6.233  $2,852.88      180   1-Dec-13   $   322,046.63
4966689   NASHVILLE                    TN     37205  SFD          6.625     6.250  $2,304.74      180   1-Nov-13   $   257,295.56
4966707   WEST PALM BEACH              FL     33401  HCO          7.125     6.250  $2,696.75      180   1-Aug-13   $   247,945.01
4966724   KNOXVILLE                    TN     37919  SFD          6.375     6.108  $2,393.97      180   1-Nov-13   $   271,391.52
4966747   TEQUESTA                     FL     33469  SFD          7.000     6.250  $3,056.38      180   1-Oct-13   $   332,397.69
4966749   ATLANTA                      GA     30327  SFD          6.250     5.983  $2,915.24      180   1-Nov-13   $   333,043.52
4966764   JONESBOROUGH                 TN     37659  SFD          6.375     6.108  $2,046.98      180   1-Dec-13   $   232,864.31
4966776   ROME                         GA     30165  SFD          6.375     6.108  $2,419.90      180   1-Dec-13   $   275,288.21
4966784   SANFORD                      FL     32771  SFD          7.375     6.250  $2,273.59      180   1-Jul-13   $   237,534.02
4966822   GULFPORT                     FL     33707  SFD          7.000     6.250  $3,145.90      180   1-Oct-13   $   342,133.78
4966855   MIAMI                        FL     33176  SFD          7.000     6.250  $4,494.14      180   1-Jan-14   $   493,634.68
4966857   PENSACOLA                    FL     32507  SFD          6.750     6.250  $3,110.00      180   1-Sep-13   $   342,045.78
4966869   COLUMBUS                     GA     31907  SFD          6.250     5.983  $2,057.81      180   1-Nov-13   $   235,089.58
4966879   ATLANTA                      GA     30327  SFD          6.500     6.233  $2,338.20      180   1-Nov-13   $   262,495.63
4968370   BLACKLICK                    OH     43004  SFD          6.875     6.250  $4,459.28      180   1-Mar-14   $   496,801.47
4974870   MARIETTA                     GA     30068  SFD          6.750     6.250  $3,504.25      180   1-Sep-13   $   385,582.71
4974933   APPLING                      GA     30802  SFD          6.875     6.250  $3,061.61      180   1-May-13   $   329,724.19
4975176   RALEIGH                      NC     27614  SFD          6.500     6.233  $2,371.15      180   1-Dec-13   $   266,639.75
4977105   WINTER HAVEN                 FL     33881  SFD          6.750     6.250  $3,076.96      180   1-Nov-13   $   340,893.03
4980027   MOUNTAIN VILLAGE             CO     81435  LCO          6.750     6.250  $6,092.60      180   1-Jan-14   $   679,545.65
4980069   INDIANAPOLIS                 IN     46236  SFD          7.250     6.250  $8,261.41      180   1-Jan-14   $   893,723.52
4982402   CHESTERFIELD                 MO     63011  SFD          7.250     6.250  $1,095.44      180   1-Feb-14   $   118,881.95
4984569   THOUSAND OAKS                CA     91362  SFD          6.875     6.250  $5,038.97      180   1-Jan-14   $   557,140.63
4985667   CARNATION                    WA     98014  SFD          6.375     6.108  $2,973.03      180   1-Apr-14   $   342,854.47
4990148   SAVANNAH                     GA     31410  SFD          6.625     6.250  $2,304.73      180   1-Feb-14   $   259,919.28
4990180   BOCA RATON                   FL     33496  SFD          6.750     6.250  $4,539.59      180   1-Feb-14   $   508,010.15
4990210   PORT CHARLOTTE               FL     33952  SFD          6.750     6.250  $4,352.39      180   1-Dec-13   $   483,826.67
4990247   ATLANTA                      GA     30318  SFD          6.250     5.983  $3,293.16      180   1-Jan-14   $   378,698.84
4991134   CARMEL                       IN     46033  SFD          6.875     6.250  $3,121.50      180   1-Apr-14   $   348,883.71
4992741   BELLEVUE                     WA     98006  SFD          6.875     6.250  $4,013.34      180   1-Feb-14   $   445,669.64
4992767   GERMANTOWN                   TN     38139  SFD          6.750     6.250  $2,374.21      180   1-Feb-14   $   265,690.31
4992884   WEST CHESTER                 PA     19382  SFD          6.375     6.108  $2,653.25      180   1-Jan-14   $   301,973.26
4992887   PALO CEDRO                   CA     96073  SFD          6.625     6.250  $3,108.10      180   1-Jan-14   $   348,158.01
4992931   FLEMINGTON                   NJ     08822  SFD          6.000     5.733  $2,447.19      180   1-Feb-14   $   286,993.44
4992942   UNIVERSITY PARK              TX     75225  SFD          6.750     6.250  $2,692.34      180   1-Mar-14   $   302,282.62
4992972   SANIBEL                      FL     33957  SFD          7.000     6.250  $3,086.58      180   1-Mar-14   $   341,226.86
4993004   COOKEVILLE                   TN     38501  SFD          7.375     6.250  $4,047.66      180   1-Feb-14   $   435,944.70
4993011   LA MESA                      CA     91941  SFD          6.875     6.250  $3,460.39      180   1-Feb-14   $   384,266.28
4993023   LAGUNA NIGUEL                CA     92677  SFD          6.875     6.250  $2,452.60      180   1-Dec-13   $   270,564.07
4993039   ANAHEIM                      CA     92808  PUD          6.875     6.250  $2,925.28      180   1-Jan-14   $   322,945.82
4993050   PHOENIX                      AZ     85021  SFD          6.750     6.250  $2,610.49      180   1-Jan-14   $   291,163.32
4993743   AURORA                       CO     80016  SFD          6.750     6.250  $2,388.81      180   1-Jan-14   $   266,439.15
4993873   PARADISE VALLEY              AZ     85253  SFD          6.875     6.250  $5,797.06      180   1-Mar-14   $   645,841.92
4993940   LEONARDTOWN                  MD     20650  SFD          6.750     6.250  $2,217.15      180   1-Mar-14   $   248,929.84
4993975   KENT                         WA     98031  SFD          6.725     6.250  $3,015.03      180   1-Jan-14   $   338,886.09
4995291   CONCORD                      CA     94520  SFD          7.000     6.250  $2,507.74      180   1-Dec-13   $   274,547.16
4995308   STANWOOD                     WA     98292  SFD          6.625     6.250  $2,809.59      180   1-Jan-14   $   315,793.64
4995328   FORT MYERS                   FL     33908  SFD          6.500     6.233  $2,700.44      180   1-Mar-14   $   307,951.92
4995507   LIBERTYVILLE                 IL     60048  SFD          7.375     6.250  $2,936.40      180   1-Jan-14   $   315,265.31
4995540   EUGENE                       OR     97405  SFD          6.500     6.233  $2,700.44      180   1-Feb-14   $   306,919.55
4995578   SCOTTSDALE                   AZ     85255  SFD          6.500     6.233  $2,829.80      180   1-Mar-14   $   322,703.81
4996514   ATLANTA                      GA     30324  SFD          6.125     5.858  $3,153.76      180   1-Jan-14   $   354,478.37
4996688   STERLING                     VA     20165  SFD          6.875     6.250  $3,867.09      180   1-Feb-14   $   429,427.42
4996704   DILLON                       CO     80435  LCO          6.625     6.250  $2,546.19      180   1-Feb-14   $   286,836.53
4996727   GARDNERVILLE                 NV     89410  SFD          6.875     6.250  $2,720.16      180   1-Jan-14   $   301,075.38
4996733   MARIETTA                     GA     30068  SFD          6.625     6.250  $3,301.26      180   1-Feb-14   $   372,303.39
4996743   HEALDSBURG                   CA     95448  SFD          6.625     6.250  $3,633.58      180   1-Oct-13   $   400,338.89
4996931   GLEN MILLS                   PA     19342  SFD          6.875     6.250  $2,939.55      180   1-Feb-14   $   323,410.99
4996974   FORT LAUDERDALE              FL     33305  SFD          6.625     6.250  $2,928.99      180   1-Feb-14   $   330,320.24
4998228   WOODINVILLE                  WA     98072  SFD          6.500     6.233  $2,081.95      180   1-Dec-13   $   235,020.28
4998257   NEWTOWN SQUARE               PA     19073  SFD          6.750     6.250  $2,256.52      180   1-Feb-14   $   252,519.67
4998270   NANTUCKET                    MA     02554  SFD          7.250     6.250  $5,477.18      180   1-Feb-14   $   594,409.82
4998283   WOODINVILLE                  WA     98072  SFD          6.625     6.250  $2,502.28      180   1-Mar-14   $   283,137.19
4998306   DERWOOD                      MD     20855  SFD          7.000     6.250  $2,876.26      180   1-Feb-14   $   316,926.96
4998320   ROSWELL                      GA     30075  SFD          6.750     6.250  $2,781.72      180   1-Jan-14   $   310,261.66
4998334   NORMAN                       OK     73071  SFD          6.625     6.250  $3,590.99      180   1-Nov-13   $   400,890.98
4998345   SAN FRANCISCO                CA     94117  SFD          6.625     6.250  $2,604.57      180   1-Oct-13   $   286,333.63
4999007   NORCROSS                     GA     30092  SFD          6.750     6.250  $2,260.95      180   1-Dec-13   $   251,334.59
4999840   BELLEVUE                     WA     98006  SFD          6.250     5.983  $2,872.37      180   1-Mar-14   $   332,738.97
5000697   RANCHO CUCAMONGA             CA     91737  SFD          7.000     6.250  $2,876.25      180   1-Mar-14   $   317,974.95
5003579   SAVANNAH                     GA     31419  SFD          6.750     6.250  $3,681.22      180   1-Feb-14   $   411,953.67
5003773   KENNESAW                     GA     30152  SFD          6.750     6.250  $2,212.27      180   1-Jul-13   $   240,587.60
5003807   OAK RIDGE                    TN     37830  SFD          6.375     6.108  $2,848.57      180   1-Feb-14   $   326,289.77
5003852   HENDERSONVILLE               TN     37075  SFD          6.500     6.233  $5,226.64      180   1-Feb-14   $   594,037.90
5003876   PEMBROKE PINES               FL     33025  SFD          6.500     6.233  $1,067.35      120   1-Dec-08   $    89,580.40
5004295   DALLAS                       TX     75230  SFD          6.875     6.250  $4,994.39      180   1-Dec-13   $   550,966.85
5004317   MANHATTAN BEACH              CA     90266  SFD          6.875     6.250  $4,013.34      180   1-Jan-14   $   444,209.62
5004469   PALM BEACH GARDENS           FL     33418  SFD          7.250     6.250  $2,458.91      180   1-Apr-13   $   252,999.15
5004505   HAMILTON TOWNSHIP            NJ     08610  SFD          7.250     6.250  $1,110.95      180   1-Feb-14   $   120,566.14
5004531   NEWHALL                      CA     91381  SFD          7.000     6.250  $2,085.28      180   1-Feb-14   $   229,288.40
5004550   WAYLAND                      MI     49348  SFD          6.875     6.250  $1,052.39      180   1-Feb-14   $   116,864.48
5004562   GRAND LEDGE                  MI     48837  SFD          6.625     6.250  $1,369.67      180   1-Feb-14   $   154,465.90
5004596   MISSOULA                     MT     59801  SFD          6.875     6.250  $1,150.49      180   1-Jan-14   $   127,149.26
5004606   VACAVILLE                    CA     95688  SFD          6.875     6.250  $2,809.35      180   1-Feb-14   $   311,759.99
5004638   AMHERST                      OH     44001  SFD          7.000     6.250  $2,912.20      180   1-Feb-14   $   320,915.48
5004648   ATLANTA                      GA     30307  SFD          6.875     6.250  $4,905.20      180   1-Feb-14   $   544,707.31
5004681   TEMPLE TERRACE               FL     33617  SFD          6.875     6.250  $1,426.97      180   1-Feb-14   $   158,460.30
5004691   KENT                         WA     98031  SFD          7.250     6.250  $1,597.51      180   1-Feb-14   $   173,369.53
5004697   FORT MYERS                   FL     33917  SFD          6.875     6.250  $1,293.19      180   1-Feb-14   $   143,604.66
5004708   LAKE TOXAWAY                 NC     28747  SFD          6.875     6.250  $4,147.12      180   1-Feb-14   $   460,525.29
5004717   URBANDALE                    IA     50322  LCO          6.875     6.250  $  767.00      180   1-Feb-14   $    85,172.41
5004736   BROOKLYN                     NY     11236  MF2          6.625     6.250  $2,212.54      180   1-Feb-14   $   249,522.51
5004755   BRIGHTON                     NY     14620  SFD          6.875     6.250  $2,541.78      180   1-Feb-14   $   282,257.44
5004875   WASHINGTON                   DC     20009  LCO          7.250     6.250  $2,346.06      180   1-Feb-14   $   254,404.33
5004938   FORT SMITH                   AR     72901  SFD          7.250     6.250  $2,793.36      180   1-Feb-14   $   303,149.01
5004962   TAYLOR MILL                  KY     41015  SFD          6.875     6.250  $1,132.65      180   1-Feb-14   $   125,777.88
5004996   PINE ISLAND                  FL     33956  SFD          6.875     6.250  $1,204.01      180   1-Feb-14   $   133,700.87
5005018   BOZEMAN                      MT     59715  SFD          7.000     6.250  $3,505.43      180   1-Feb-14   $   386,287.13
5008604   GAINESVILLE                  FL     32653  SFD          6.500     6.233  $2,491.37      180   1-Mar-14   $   284,110.49
5008624   KENNESAW                     GA     30144  SFD          6.875     6.250  $2,408.25      180   1-May-13   $   259,360.76
5008629   WINDERMERE                   FL     34786  SFD          7.250     6.250  $2,892.27      180   1-Jun-13   $   258,694.21
5008641   HIXSON                       TN     37343  SFD          6.375     6.108  $2,648.52      170   1-Apr-13   $   292,754.76
5009271   CANTON                       GA     30115  SFD          6.500     6.233  $2,613.32      180   1-Mar-14   $   298,018.01
5009331   TUCSON                       AZ     85750  SFD          6.500     6.233  $1,280.52      180   1-Mar-14   $   146,028.84
5009345   HAZEL GREEN                  AL     35750  SFD          8.125     6.250  $  722.16      180   1-Nov-13   $    73,691.95
5009379   MEMPHIS                      TN     38122  SFD          7.125     6.250  $  478.27      180   1-Nov-13   $    51,796.59
5009383   PIEDMONT                     CA     94611  SFD          6.625     6.250  $2,107.18      180   1-Mar-14   $   238,431.32
5009390   MIAMI                        FL     33183  SFD          6.500     6.233  $1,045.32      180   1-Mar-14   $   119,207.22
5009395   PHOENIX                      AZ     85033  SFD          8.875     6.250  $  356.26      144   1-Dec-10   $    30,791.47
5009416   WINNSBORO                    LA     71295  SFD          7.000     6.250  $  262.90      180   1-Mar-14   $    29,064.91
5009426   WOODSTOCK                    GA     30188  SFD          6.625     6.250  $  592.64      180   1-Mar-14   $    67,058.82
5009427   BISBEE                       AZ     85603  SFD          8.375     6.250  $  284.68      168   1-Dec-12   $    27,084.68
5009433   VERNAL                       UT     84078  SFD          7.500     6.250  $  927.01      180   1-Jan-14   $    98,523.46
5009458   TAYLOR                       PA     18517  SFD          7.000     6.250  $  422.44      180   1-Feb-14   $    46,552.58
5009462   STANTON                      CA     90680  SFD          7.000     6.250  $1,247.12      180   1-Feb-14   $   137,227.33
5009463   GAINESVILLE                  FL     32606  SFD          7.500     6.250  $1,244.51      180   1-Mar-14   $   133,436.57
5009474   RIALTO                       CA     92376  SFD          7.625     6.250  $  847.06      180   1-Mar-14   $    90,133.10
5009494   BALLWIN                      MO     63021  SFD          7.125     6.250  $  885.97      180   1-Jan-14   $    95,970.72
5009498   SOUTH BELOIT                 IL     61080  SFD          8.000     6.250  $  305.80      180   1-Nov-13   $    31,435.87
5009501   KATONAH                      NY     10536  SFD          7.375     6.250  $2,391.80      180   1-Mar-14   $   258,407.36
5009505   HOOSICK FALLS                NY     12090  SFD          7.875     6.250  $  583.29      180   1-Dec-13   $    60,521.70
5009506   ASHER                        OK     74826  SFD          6.750     6.250  $  663.68      180   1-Mar-14   $    74,515.03
5009512   BELLEVILLE                   MI     48111  SFD          6.750     6.250  $1,213.07      180   1-Dec-13   $   134,849.75
5009514   PORT ANGELES                 WA     98362  SFD          7.500     6.250  $  799.54      180   1-Feb-14   $    85,463.67
5009520   UPPER GWYNEDD                PA     19454  SFD          6.000     5.733  $  759.47      180   1-Dec-13   $    88,311.68
5009533   YUMA                         AZ     85365  SFD          6.500     6.233  $  479.10      180   1-Mar-14   $    54,636.66
5009555   MONTGOMERY                   AL     36109  SFD          7.500     6.250  $  695.25      180   1-Feb-14   $    74,316.24
5009557   JAMAICA                      NY     11420  MF2          6.625     6.250  $1,158.95      180   1-Feb-14   $   130,702.26
5009561   HAZEL CREST                  IL     60429  SFD          6.500     6.233  $  950.81      144   1-Feb-11   $    93,581.78
5009564   YANCEYVILLE                  NC     27379  SFD          8.000     6.250  $  426.62      180   1-Feb-14   $    43,816.83
5009567   GARY                         IN     46404  SFD          6.500     6.233  $  606.38      156   1-Feb-12   $    62,962.55
5009582   PAWLING                      NY     12564  SFD          6.625     6.250  $1,316.99      180   1-Jan-14   $   148,001.67
5009586   CHERRYVILLE                  NC     28021  SFD          7.000     6.250  $  445.81      180   1-Feb-14   $    49,109.89
5009596   PORTLAND                     TN     37148  SFD          7.750     6.250  $  647.59      180   1-Jan-14   $    67,979.06
5009608   WORCESTER                    MA     01602  SFD          6.500     6.233  $  836.26      180   1-Feb-14   $    94,715.93
5009616   BOWIE                        MD     20715  SFD          6.500     6.233  $1,045.32      180   1-Mar-14   $   119,207.22
5009633   JAMESTOWN                    TN     38556  SFD          8.375     6.250  $  492.62      180   1-Feb-14   $    49,974.44
5009638   MARSHFIELD                   MA     02050  SFD          6.500     6.233  $1,393.77      180   1-Mar-14   $   158,942.94
5010169   LONGWOOD                     FL     32779  SFD          6.500     6.233  $2,177.77      180   1-Mar-14   $   247,520.28
5013419   OSPREY                       FL     34229  SFD          6.750     6.250  $3,725.38      180   1-Oct-13   $   411,326.75
5013501   WELLINGTON                   FL     33414  SFD          6.500     6.233  $3,397.32      180   1-Nov-13   $   382,185.93
5013515   MELBOURNE                    FL     32940  SFD          7.125     6.250  $7,971.32      180   1-Feb-14   $   861,532.88
5013526   MARTINEZ                     GA     30907  SFD          6.500     6.233  $4,233.58      180   1-Mar-14   $   482,441.10
5013545   MACON                        GA     31201  SFD          6.875     6.250  $3,638.77      180   1-Apr-14   $   406,698.73
5013741   KISSIMMEE                    FL     34744  SFD          7.750     6.250  $3,727.61      112   1-Mar-08   $   291,854.49
5013762   KNOXVILLE                    TN     37919  SFD          6.500     6.233  $2,212.61      180   1-Mar-14   $   252,321.91
5013821   MAITLAND                     FL     32751  SFD          6.500     6.233  $4,120.77      180   1-Nov-13   $   463,248.99
5013839   ROCKMART                     GA     30153  SFD          6.750     6.250  $2,521.99      180   1-Mar-14   $   283,157.11
5015330   TAMPA                        FL     33647  PUD          7.000     6.250  $4,557.45      161   1-Aug-12   $   471,416.34
5018202   TAVARES                      FL     32778  SFD          6.500     6.233  $4,215.82      180   1-Feb-14   $   479,151.96
5018265   ORLANDO                      FL     32819  SFD          7.625     6.250  $2,540.22      180   1-Dec-13   $   209,242.14
5026491   KNOXVILLE                    TN     37922  SFD          6.500     6.233  $2,177.77      180   1-Apr-14   $   249,176.40
5026511   KNOXVILLE                    TN     37918  SFD          6.500     6.233  $2,613.32      180   1-Apr-14   $   299,011.68
5028826   MIAMI                        FL     33156  SFD          6.625     6.250  $3,933.41      180   1-Apr-14   $   446,539.92

                                                                                                                   $48,964,191.43
</TABLE>


<TABLE>
<CAPTION>
(i)       (x)     (xi)       (xii)       (xiii)    (xiv)        (xv)     (xvi)
- --------  ------  ---------  ----------  --------  -----------  -------  --------

MORTGAGE                     MORTGAGE              T.O.P.       MASTER   FIXED
LOAN                         INSURANCE   SERVICE   MORTGAGE     SERVICE  RETAINED
NUMBER    LTV     SUBSIDY    CODE        FEE       LOAN         FEE      YIELD
- --------  ------  ---------  ----------  --------  -----------  -------  --------
<S>       <C>     <C>        <C>         <C>       <C>          <C>      <C>
4678152    75.00                           0.250                  0.017    1.358
4678183    80.00                           0.250                  0.017    1.483
4688208    75.00                           0.250                  0.017    0.983
4690876    75.00                           0.250                  0.017    0.608
4798809    77.65                           0.250                  0.017    0.233
4858925    80.00                           0.250                  0.017    0.483
4859282    72.08                           0.250                  0.017    0.483
4931010    42.22                           0.250                  0.017    0.608
4947419    52.36                           0.250                  0.017    0.733
4947498    89.87                   11      0.250                  0.017    0.483
4952662    80.00                           0.250                  0.017    0.608
4953754    38.83                           0.250                  0.017    0.608
4959897    78.46                           0.250                  0.017    0.358
4962376    71.99                           0.250                  0.017    1.483
4966618    29.57                           0.250                  0.017    1.108
4966638    74.81                           0.250                  0.017    0.000
4966642    69.77                           0.250                  0.017    0.000
4966646    60.80                           0.250                  0.017    0.000
4966652    64.22                           0.250                  0.017    0.000
4966689    75.00                           0.250                  0.017    0.108
4966707    74.07                           0.250                  0.017    0.608
4966724    48.17                           0.250                  0.017    0.000
4966747    55.12                           0.250                  0.017    0.483
4966749    43.87                           0.250                  0.017    0.000
4966764    65.79                           0.250                  0.017    0.000
4966776    71.79                           0.250                  0.017    0.000
4966784    73.78                           0.250                  0.017    0.858
4966822    52.86                           0.250                  0.017    0.483
4966855    66.67                           0.250                  0.017    0.483
4966857    74.78                           0.250                  0.017    0.233
4966869    88.89                   12      0.250                  0.017    0.000
4966879    59.65                           0.250                  0.017    0.000
4968370    55.56                           0.250                  0.017    0.358
4974870    80.00                           0.250                  0.017    0.233
4974933    76.29                           0.250                  0.017    0.358
4975176    68.05                           0.250                  0.017    0.000
4977105    79.93                           0.250                  0.017    0.233
4980027    70.26                           0.250                  0.017    0.233
4980069    67.04                           0.250                  0.017    0.733
4982402    64.17                           0.250                  0.017    0.733
4984569    78.47                           0.250                  0.017    0.358
4985667    80.00                           0.250                  0.017    0.000
4990148    75.00                           0.250                  0.017    0.108
4990180    55.46                           0.250                  0.017    0.233
4990210    32.79                           0.250                  0.017    0.233
4990247    75.64                           0.250                  0.017    0.000
4991134    64.81                           0.250                  0.017    0.358
4992741    64.75                           0.250                  0.017    0.358
4992767    76.66                           0.250                  0.017    0.233
4992884    78.12                           0.250                  0.017    0.000
4992887    76.79                           0.250                  0.017    0.108
4992931    74.74                           0.250                  0.017    0.000
4992942    37.10                           0.250                  0.017    0.233
4992972    52.83                           0.250                  0.017    0.483
4993004    80.00                           0.250                  0.017    0.858
4993011    80.00                           0.250                  0.017    0.358
4993023    68.75                           0.250                  0.017    0.358
4993039    80.00                           0.250                  0.017    0.358
4993050    67.05                           0.250                  0.017    0.233
4993743    65.84                           0.250                  0.017    0.233
4993873    78.79                           0.250                  0.017    0.358
4993940    90.00                   01      0.250                  0.017    0.233
4993975    74.65                           0.250                  0.017    0.208
4995291    67.23                           0.250                  0.017    0.483
4995308    74.42                           0.250                  0.017    0.108
4995328    59.62                           0.250                  0.017    0.000
4995507    80.00                           0.250                  0.017    0.858
4995540    75.61                           0.250                  0.017    0.000
4995578    40.61                           0.250                  0.017    0.000
4996514    80.00                           0.250                  0.017    0.000
4996688    80.00                           0.250                  0.017    0.358
4996704    76.32                           0.250                  0.017    0.108
4996727    74.39                           0.250                  0.017    0.358
4996733    80.00                           0.250                  0.017    0.108
4996743    37.62                           0.250                  0.017    0.108
4996931    78.85                           0.250                  0.017    0.358
4996974    80.00                           0.250                  0.017    0.108
4998228    73.54                           0.250                  0.017    0.000
4998257    62.20                           0.250                  0.017    0.233
4998270    63.16                           0.250                  0.017    0.733
4998283    74.03                           0.250                  0.017    0.108
4998306    64.00                           0.250                  0.017    0.483
4998320    72.77                           0.250                  0.017    0.233
4998334    61.97                           0.250                  0.017    0.108
4998345    29.67                           0.250                  0.017    0.108
4999007    78.62                           0.250                  0.017    0.233
4999840    69.79                           0.250                  0.017    0.000
5000697    80.00                           0.250                  0.017    0.483
5003579    79.24                           0.250                  0.017    0.233
5003773    67.76                           0.250                  0.017    0.233
5003807    77.55                           0.250                  0.017    0.000
5003852    80.00                           0.250                  0.017    0.000
5003876    64.83                           0.250                  0.017    0.000
5004295    57.44                           0.250                  0.017    0.358
5004317    45.00                           0.250                  0.017    0.358
5004469    78.76                           0.250                  0.017    0.733
5004505    74.66                           0.250                  0.017    0.733
5004531    80.00                           0.250                  0.017    0.483
5004550    91.47                           0.250                  0.017    0.358
5004562    34.67                           0.250                  0.017    0.108
5004596    61.43                           0.250                  0.017    0.358
5004606    85.14                   33      0.250                  0.017    0.358
5004638    80.00                           0.250                  0.017    0.483
5004648    75.14                           0.250                  0.017    0.358
5004681    80.00                           0.250                  0.017    0.358
5004691   100.00                           0.250                  0.017    0.733
5004697    69.38                           0.250                  0.017    0.358
5004708    60.39                           0.250                  0.017    0.358
5004717   100.00                           0.250                  0.017    0.358
5004736    84.00                   33      0.250                  0.017    0.108
5004755   100.00                           0.250                  0.017    0.358
5004875    98.85                           0.250                  0.017    0.733
5004938    66.23                           0.250                  0.017    0.733
5004962    64.96                           0.250                  0.017    0.358
5004996   100.00                           0.250                  0.017    0.358
5005018    43.33                           0.250                  0.017    0.483
5008604    60.85                           0.250                  0.017    0.000
5008624    45.38                           0.250                  0.017    0.358
5008629    47.29                           0.250                  0.017    0.733
5008641    82.22                           0.250                  0.017    0.000
5009271    64.52                           0.250                  0.017    0.000
5009331    79.89                           0.250                  0.017    0.000
5009345    79.79                           0.250                  0.017    1.608
5009379    77.65                           0.250                  0.017    0.608
5009383    17.14                           0.250                  0.017    0.108
5009390    77.42                           0.250                  0.017    0.000
5009395    36.63                           0.250                  0.017    2.358
5009416    75.00                           0.250                  0.017    0.483
5009426    75.00                           0.250                  0.017    0.108
5009427    37.48                           0.250                  0.017    1.858
5009433    71.43                           0.250                  0.017    0.983
5009458    73.44                           0.250                  0.017    0.483
5009462    75.00                           0.250                  0.017    0.483
5009463    75.00                           0.250                  0.017    0.983
5009474    74.94                           0.250                  0.017    1.108
5009494    71.92                           0.250                  0.017    0.608
5009498    80.00                           0.250                  0.017    1.483
5009501    57.78                           0.250                  0.017    0.858
5009505    75.00                           0.250                  0.017    1.358
5009506    75.00                           0.250                  0.017    0.233
5009512    78.33                           0.250                  0.017    0.233
5009514    71.88                           0.250                  0.017    0.983
5009520    32.14                           0.250                  0.017    0.000
5009533    77.90                           0.250                  0.017    0.000
5009555    72.12                           0.250                  0.017    0.983
5009557    71.35                           0.250                  0.017    0.108
5009561    70.30                           0.250                  0.017    0.000
5009564    73.19                           0.250                  0.017    1.483
5009567    60.71                           0.250                  0.017    0.000
5009582    71.43                           0.250                  0.017    0.108
5009586    80.00                           0.250                  0.017    0.483
5009596    80.00                           0.250                  0.017    1.233
5009608    78.69                           0.250                  0.017    0.000
5009616    78.43                           0.250                  0.017    0.000
5009633    80.00                           0.250                  0.017    1.858
5009638    80.00                           0.250                  0.017    0.000
5010169    45.45                           0.250                  0.017    0.000
5013419    76.54                           0.250                  0.017    0.233
5013501    62.40                           0.250                  0.017    0.000
5013515    62.86                           0.250                  0.017    0.608
5013526    74.92                           0.250                  0.017    0.000
5013545    80.00                           0.250                  0.017    0.358
5013741    73.52                           0.250                  0.017    1.233
5013762    68.65                           0.250                  0.017    0.000
5013821    75.09                           0.250                  0.017    0.000
5013839    75.00                           0.250                  0.017    0.233
5015330    65.70                           0.250                  0.017    0.483
5018202    69.14                           0.250                  0.017    0.000
5018265    70.51                           0.250                  0.017    1.108
5026491    40.98                           0.250                  0.017    0.000
5026511    62.11                           0.250                  0.017    0.000
5028826    80.00                           0.250                  0.017    0.108
</TABLE>



COUNT:              172
WAC:        6.834612583
WAM:        173.9634229
WALTV:      68.68265829


<PAGE>


NASCOR
NMI / 1999-15 Exhibit F-2 (Part B)
15 YEAR FIXED RATE RELOCATION AND NON RELOCATION  LOANS


(i)        (xvii)                             (xviii)
- --------   ---------------------------------  ---------------------------------

MORTGAGE                                      NMI
LOAN                                          LOAN
NUMBER     SERVICER                           SELLER
- --------   ---------------------------------  ---------------------------------
4678152    FIRST UNION MORTGAGE CORP.         FIRST UNION MORTGAGE CORP.
4678183    FIRST UNION MORTGAGE CORP.         FIRST UNION MORTGAGE CORP.
4688208    FIRST UNION MORTGAGE CORP.         FIRST UNION MORTGAGE CORP.
4690876    FIRST UNION MORTGAGE CORP.         FIRST UNION MORTGAGE CORP.
4798809    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4858925    NATIONAL CITY MORTGAGE C           NATIONAL CITY MORTGAGE C
4859282    NATIONAL CITY MORTGAGE C           NATIONAL CITY MORTGAGE C
4931010    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
4947419    NATIONAL CITY MORTGAGE C           NATIONAL CITY MORTGAGE C
4947498    NATIONAL CITY MORTGAGE C           NATIONAL CITY MORTGAGE C
4952662    NATIONAL CITY MORTGAGE C           NATIONAL CITY MORTGAGE C
4953754    HUNTINGTON MORTGAGE COMPAN         HUNTINGTON MORTGAGE COMPAN
4959897    BANK UNITED OF TEXAS               BANK UNITED OF TEXAS
4962376    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
4966618    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966638    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966642    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966646    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966652    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966689    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966707    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966724    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966747    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966749    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966764    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966776    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966784    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966822    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966855    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966857    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966869    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4966879    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4968370    HUNTINGTON MORTGAGE COMPAN         HUNTINGTON MORTGAGE COMPAN
4974870    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4974933    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4975176    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4977105    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4980027    BANK UNITED OF TEXAS               BANK UNITED OF TEXAS
4980069    BANK UNITED OF TEXAS               BANK UNITED OF TEXAS
4982402    NATIONAL CITY MORTGAGE CO.         NATIONAL CITY MORTGAGE CO.
4984569    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
4985667    CASCADE SAVINGS BANK               CASCADE SAVINGS BANK
4990148    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4990180    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4990210    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4990247    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
4991134    HUNTINGTON MORTGAGE COMPAN         HUNTINGTON MORTGAGE COMPAN
4992741    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4992767    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4992884    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4992887    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4992931    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4992942    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4992972    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4993004    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4993011    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4993023    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4993039    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4993050    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4993743    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4993873    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4993940    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4993975    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4995291    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4995308    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4995328    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4995507    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4995540    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4995578    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4996514    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4996688    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4996704    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4996727    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4996733    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4996743    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4996931    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4996974    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4998228    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4998257    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4998270    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4998283    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4998306    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4998320    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4998334    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4998345    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4999007    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
4999840    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
5000697    FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
5003579    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5003773    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5003807    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5003852    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5003876    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5004295    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004317    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004469    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5004505    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004531    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004550    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004562    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004596    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004606    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004638    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004648    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004681    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004691    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004697    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004708    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004717    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004736    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004755    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004875    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004938    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004962    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5004996    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5005018    MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5008604    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5008624    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5008629    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5008641    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5009271    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5009331    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009345    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009379    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009383    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009390    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009395    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009416    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009426    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009427    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009433    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009458    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009462    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009463    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009474    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009494    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009498    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009501    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009505    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009506    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009512    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009514    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009520    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009533    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009555    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009557    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009561    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009564    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009567    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009582    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009586    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009596    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009608    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009616    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009633    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5009638    NOVUS FINANCIAL CORPORATIO         NOVUS FINANCIAL CORPORATIO
5010169    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5013419    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5013501    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5013515    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5013526    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5013545    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5013741    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5013762    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5013821    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5013839    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5015330    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5018202    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5018265    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5026491    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5026511    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5028826    SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.



COUNT:                       172
WAC:                 6.834612583
WAM:                 173.9634229
WALTV:               67.30512048

<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 1999-15

            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 1999-15, 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 May 27,  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  1999-15,  Class  A-R
Certificate  (the  "Class  A-R  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 Certificate
as they become due.

            5. That the Purchaser  understands that it may incur tax liabilities
with respect to the Class A-R  Certificate in excess of cash flows  generated by
the Class A-R Certificate.

            6. That the Purchaser will not transfer the Class A-R 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 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
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
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 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 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 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 Certificate]





                                    [Date]

First Union National Bank
230 South Tryon Street
Charlotte, North Carolina 28288

      Re:   Norwest Asset Securities Corporation,
            SERIES 1999-15, CLASS A-R
            -------------------------------------

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 1999-15
                   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 1999-15, 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 May 27, 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 1999-15.

            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.]

            [(c)  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 April 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 ransfer.

<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 1999-15
                     CLASS [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 1999-15, Class
[B-1][B-2][B-3]  Certificates (the "Class [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 May 27, 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 1999-15.

            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 [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
      [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

                       Cascade Bank Servicing Agreement

                NOVUS Financial Corporation Servicing Agreement

              The Huntington Mortgage Company Servicing Agreement

                  SunTrust Mortgage, Inc. Servicing Agreement

             First Union Mortgage Corporation Servicing Agreement

              National City Mortgage Company Servicing Agreement

                         Bank United Servicing Agreement

             Merrill Lynch Credit Corporation Servicing Agreement

                    FT Mortgage Companies 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 1999-15, Class
____ (the "Class B Certificates"). The Class B Certificates were issued pursuant
to a Pooling and  Servicing  Agreement  dated as of May 27,  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
F-1 by  Fitch  IBCA,  Inc.  ("Fitch")  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 Fitch 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 F-1 by
Fitch or A-1 by S&P or (z) the  depository  institution  or trust company is one
that is acceptable to either Fitch 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 1999-15. 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>


                                  SCHEDULE I

   Norwest Asset Securities Corporation, Mortgage Pass-Through Certificates,
                                Series 1999-15
                Applicable Unscheduled Principal Receipt Period


                                      FULL UNSCHEDULED     PARTIAL UNSCHEDULED
SERVICER                             PRINCIPAL RECEIPTS     PRINCIPAL RECEIPTS
- --------                             ------------------     ------------------
Norwest Mortgage, Inc. Exhibit F-1       Mid-Month              Mid-Month
SunTrust Mortgage, Inc.                  Mid-Month             Prior Month
FT Mortgage Companies                    Mid-Month             Prior Month
Merrill Lynch Credit Corporation         Mid-Month             Prior Month
First Union Mortgage Corporation         Mid-Month             Prior Month
National City Mortgage Company           Mid-Month             Prior Month
NOVUS Financial Corporation             Prior Month            Prior Month
The Huntington Mortgage Company          Mid-Month             Prior Month
Cascade Bank                             Mid-Month             Prior Month
Bank United                              Mid-Month             Prior Month




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