NORWEST ASSET SEC CORP MORT PASS THR CERT SER 1999-25
8-K, 1999-10-22
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: September 29, 1999
(Date of earliest event reported)

Commission File No.  333-65481



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



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



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



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



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



<PAGE>




ITEM 5.     OTHER EVENTS

On  September  29,  1999,  Norwest  Asset  Securities  Corporation,  a  Delaware
corporation (the "Registrant"),  sold Mortgage Pass-Through Certificates, Series
1999-25,  Class A-1, Class A-2, Class A-3, Class A-4 and Class A-R (the "Offered
Certificates"),  having an aggregate original principal balance of $289,304,600.
The  Offered  Certificates  were  issued  pursuant  to a Pooling  and  Servicing
Agreement,  dated as of September 29, 1999,  among the Registrant,  Norwest Bank
Minnesota,  National  Association,  as master servicer (the "Master Servicer" or
"Norwest Bank"),  United States Trust Company of New York, as trustee, and First
Union National Bank, as trust  administrator (the "Agreement"),  a copy of which
is  filed as an  exhibit  hereto.  Mortgage  Pass-Through  Certificates,  Series
1999-25, Class A-PO Certificates,  having an aggregate initial principal balance
of  $1,837,405.46  and Class B-1, Class B-2, Class B-3, Class B-4, Class B-5 and
Class B-6  Certificates,  having  an  aggregate  initial  principal  balance  of
$9,624,623.47  (the "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  96.19%  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,
originated in connection  with the relocation of employees by various  corporate
employers that participated in the relocation program of Norwest Mortgage,  Inc.
and of employees of various non-participant  employees.  The remaining undivided
interests  in the Trust  Estate  are  evidenced  by the  Class  A-PO and Class B
Certificates.  Distributions  on the 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-4,
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 September 29, 1999,  among
                                        Norwest Asset Securities  Corporation,
                                        Norwest   Bank   Minnesota,   National
                                        Association,   United   States   Trust
                                        Company of New York,  as trustee,  and
                                        First Union  National  Bank,  as trust
                                        administrator.





<PAGE>




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



                                       NORWEST ASSET SECURITIES CORPORATION


September 29, 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            E
                       Agreement, dated as of
                       September 29, 1999 among
                       Norwest Asset Securities
                       Corporation, Norwest Bank
                       Minnesota, National
                       Association, United States
                       Trust Company of New York, as
                       trustee, and First Union
                       National Bank, as trust
                       administrator.



                      NORWEST ASSET SECURITIES CORPORATION
                                    (Seller)

                                       and

                 NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION
                                (Master Servicer)



                   UNITED STATES TRUST COMPANY OF NEW YORK
                                    (Trustee)

                                       and

                            FIRST UNION NATIONAL BANK
                              (Trust Administrator)



                         POOLING AND SERVICING AGREEMENT


                         Dated as of September 29, 1999


                               $300,766,628.93


                       Mortgage Pass-Through Certificates
                                 Series 1999-25



<PAGE>




                                TABLE OF CONTENTS

                                                                            PAGE

                                    ARTICLE I

                                   DEFINITIONS

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

                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                      ORIGINAL ISSUANCE OF THE CERTIFICATES

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

                                   ARTICLE III

                ADMINISTRATION OF THE TRUST ESTATE: SERVICING
                              OF THE MORTGAGE LOANS

Section 3.01  Certificate Account......................................
Section 3.02  Permitted Withdrawals from the Certificate Account.......
Section 3.03  Advances by Master Servicer and Trust Administrator......
Section 3.04  Trust Administrator to Cooperate; Release of Owner
              Mortgage-Loan Files......................................
Section 3.05  Reports to the Trustee and Trust Administrator; Annual
              Compliance Statements....................................
Section 3.06  Title, Management and Disposition of Any REO
              Mortgage-Loan............................................
Section 3.07  Amendments to Servicing Agreements, Modification of
              Standard Provisions......................................
Section 3.08  Oversight of Servicing...................................
Section 3.09  Termination and Substitution of Servicing Agreements.....
Section 3.10  Application of Net Liquidation Proceeds..................
Section 3.11  1934 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-4       -        Form of Face of Class A-4 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 1999-25 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-1][B-2][B-3][B-4][B-5][B-6] Certificates)
EXHIBIT K         -        [Reserved]
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 September 29, 1999
executed  by NORWEST  ASSET  SECURITIES  CORPORATION,  as Seller,  NORWEST  BANK
MINNESOTA, NATIONAL ASSOCIATION, as Master Servicer, UNITED STATES TRUST COMPANY
OF NEW YORK, as Trustee and FIRST UNION NATIONAL BANK, as Trust Administrator.

                         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.

            ACCRETION  DIRECTED  CERTIFICATES:  The  Class  A-1 and  Class A-2
Certificates.

            ACCRETION  TERMINATION  DATE:  The  earlier  to  occur  of  (i)  the
Distribution Date following the Distribution Date on which the Principal Balance
of the Class A-2  Certificates  has been reduced to zero or (ii) the  Cross-Over
Date.

            ACCRUAL CERTIFICATES:  The Class A-3 Certificates.

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

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

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

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

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

            AGGREGATE CLASS A DISTRIBUTION  AMOUNT: As to any Distribution Date,
the  aggregate  amount  distributable  to the  Classes  of Class A  Certificates
pursuant to Paragraphs  first,  second,  third and fourth of Section  4.01(a) 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
$128,771.84  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.

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

            BOOK-ENTRY CERTIFICATE: Any one of the Class A-1 Certificates, Class
A-2 Certificates, Class A-3 Certificates and Class A-4 Certificates,  beneficial
ownership and  transfers of which shall be evidenced by, and made through,  book
entries by the Clearing Agency as described in Section 5.01(b).

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

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

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

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

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

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

            CLASS  A  CERTIFICATE:  Any  one of the  Class  A-1  Certificates,
Class A-2 Certificates,  Class A-3 Certificates, Class A-4 Certificates, Class
A-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-3 and  Class  A-PO
Certificates),  the amount  distributable  to such Class of Class A Certificates
pursuant to Paragraphs first, second and third clause (A) of Section 4.01(a). As
to the Class A-3  Certificates,  (a) as to any  Distribution  Date  prior to the
Accretion Termination Date, the amount distributable to the Accrual Certificates
pursuant to (i) the provisos in Paragraphs  first and second of Section  4.01(a)
and  (ii)  Paragraph  third  clause  (A) of  Section  4.01(a)  and (b) as to any
Distribution  Date on or  after  the  Accretion  Termination  Date,  the  amount
distributable to the Accrual  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,  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)  including,  in the  case of the  Accrual
Certificates prior to the Accretion Termination Date, the amount included in the
Accrual Distribution Amount pursuant to clause (i) of the definition thereof.

            CLASS A INTEREST SHORTFALL  PERCENTAGE:  As to any Distribution Date
and any Class of Class A Certificates, the percentage calculated by dividing the
Class A Unpaid Interest Shortfall for such Class by the Aggregate Class A Unpaid
Interest  Shortfall  determined as of the Business Day preceding the  applicable
Distribution Date.

            CLASS A LOSS DENOMINATOR:  As to any  Determination  Date, an amount
equal  to the sum of (i) the  Principal  Balances  of the  Class A  Certificates
(other than the Accrual  Certificates and the Class A-PO  Certificates) and (ii)
with respect to the Accrual Certificates, the lesser of the Principal Balance of
the  Accrual  Certificates  and the  Original  Principal  Balance of the Accrual
Certificates.

            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 (or,  in the case of the  Accrual  Certificates,  the  Original  Principal
Balance of such  Class,  if lower) 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  AMOUNT:  As to any Distribution  Date, the
aggregate  amount  distributed in respect of the Classes of Class A Certificates
pursuant to Paragraph third clause (A) of Section 4.01(a).

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

            CLASS A  PASS-THROUGH  RATE: As to the Class A-1,  Class A-2,  Class
A-3, Class A-4 and Class A-R Certificates,  the Class A Fixed Pass-Through Rate.
The  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 September 2004, 100%. As to any Distribution
Date  subsequent to September  2004 to and including  the  Distribution  Date in
September 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 September  2005 to and including  the  Distribution  Date in
September 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 September  2006 to and including  the  Distribution  Date in
September 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 September  2007 to and including  the  Distribution  Date in
September 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  September  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 September  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 October
2004 and  September  2005 (2) 35% of the Original  Class B Principal  Balance if
such  Distribution  Date occurs between and including October 2005 and September
2006,  (3) 40% of the Original  Class B Principal  Balance if such  Distribution
Date occurs  between and including  October 2006 and September  2007, (4) 45% of
the Original Class B Principal  Balance if such Distribution Date occurs between
and including October 2007 and September 2008, and (5) 50% of the Original Class
B Principal  Balance if such  Distribution  Date occurs  during or after October
2008.  With  respect to any  Distribution  Date on which the Class A  Prepayment
Percentage  is reduced  below the Class A  Prepayment  Percentage  for the prior
Distribution Date, the Master Servicer shall certify to the Trust Administrator,
based upon  information  provided  by each  Servicer  as to the  Mortgage  Loans
serviced by it that the criteria set forth in the preceding sentence are met.

            CLASS A PRINCIPAL  BALANCE:  As of any date,  an amount equal to the
sum of the  Principal  Balances  for  the  Class  A-1  Certificates,  Class  A-2
Certificates,  Class  A-3  Certificates,  Class  A-4  Certificates,  Class  A-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 (or in
the case of the Accrual  Certificates  prior to the Accretion  Termination Date,
the amount included in the Accrual  Distribution  Amount pursuant to clause (ii)
of the  definition  thereof) on prior  Distribution  Dates pursuant to Paragraph
second of Section 4.01(a).

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

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

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

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

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

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

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

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

            CLASS A-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; and

                  (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 of Class B  Certificates  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,  6.500%
per annum.

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

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

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

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

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

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

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

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

            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.

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

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

            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 6.500%.

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

            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 (other than for possible upgrading) 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-4,  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
October 25, 2029 which  corresponds to the "latest  possible  maturity date" for
purposes of Section 860G(a)(1) of the Internal Revenue Code of 1986, as amended.

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

            FIXED RETAINED YIELD RATE: With respect to each Mortgage Loan, a per
annum rate equal to the greater of (a) zero and (b) the Mortgage  Interest  Rate
on such Mortgage Loan minus the sum of (i) 6.500%, (ii) the applicable 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  $6,015,332.58  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.

            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  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 September 29, 1999 between Norwest  Mortgage,  as seller,
and the Seller, as purchaser.

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

            MORTGAGE LOAN SCHEDULE:  The list of the Mortgage Loans  transferred
to the Trust  Administrator  on the Closing Date as part of the Trust Estate and
attached hereto as Exhibits F-1 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 applicable  Servicing Fee Rate, as set forth in Section 11.25
with respect to such Mortgage  Loan,  (b) the Master  Servicing Fee Rate, as set
forth in Section  11.26 with  respect  to such  Mortgage  Loan and (c) the Fixed
Retained  Yield Rate, if any, with respect to such  Mortgage  Loan.  Any regular
monthly computation of interest at such rate shall be based upon annual interest
at such rate on the applicable amount divided by twelve.

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

            NON-PERMITTED FOREIGN HOLDER:  As defined in Section 5.02(d).

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

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

            NON-SUPPORTED  INTEREST SHORTFALL:  With respect to any Distribution
Date, the excess, if any, of the aggregate  Prepayment Interest Shortfall on the
Mortgage  Loans over the  aggregate  Compensating  Interest with respect to such
Distribution  Date. With respect to each Distribution Date occurring on or after
the Cross-Over Date, the Non-Supported Interest Shortfall determined pursuant to
the preceding  sentence will be increased by the amount of any  Cross-Over  Date
Interest  Shortfall  for such  Distribution  Date.  Any  Non-Supported  Interest
Shortfall  will be  allocated to (a) the Class A  Certificates  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, Class A-4 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  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.

            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  of a
Class,  the  undivided  percentage  interest  obtained by dividing  the original
principal balance of such Certificate by the Original  Principal Balance of such
Class of Class A Certificates. With respect to a Class B Certificate of a Class,
the undivided  percentage  interest obtained by dividing the original  principal
balance of such Certificate by the Original  Principal  Balance of such Class of
Class B Certificates.

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

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

            PLAN:  As defined in Section 5.02(c).

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

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

October 1999 through September 2004.............             0%
October 2004 through September 2005.............             30%
October 2005 through September 2006.............             40%
October 2006 through September 2007.............             60%
October 2007 through September 2008.............             80%
October 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 (increased in the case of the Accrual
Certificates  by  the  Accrual   Distribution  Amounts  with  respect  to  prior
Distribution Dates for the Accrual Certificates) 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), (ii) as a result of a
Principal  Adjustment and (iii),  if applicable,  from the Accrual  Distribution
Amounts for such prior  Distribution Dates and (b) the Realized Losses allocated
through such Determination Date to such Class pursuant to Section 4.02(b). After
the Cross-Over  Date, each such Principal  Balance will also be reduced (a "Loss
Reduction") on each  Determination Date by an amount equal to the product of the
Class A Loss Percentage of such Class 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-4  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-4
Certificates divided by the Pool Balance (Non-PO Portion).

            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 DCR 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 DCR.  If any such  agency or a  successor  is no longer in
existence,  "Rating Agency" shall be such statistical  credit rating agency,  or
other comparable Person,  designated by the Seller,  notice of which designation
shall be given to the Trustee and the Master Servicer.  References herein to the
highest  short-term  rating  category of a Rating  Agency shall mean D-1+ in the
case of DCR,  A-1+ in the case of S&P and in the case of any other Rating Agency
shall mean its  equivalent  of such  ratings.  References  herein to the highest
long-term rating categories of a Rating Agency shall mean AAA in the case of S&P
and DCR, 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,  but  without  such  amounts  being
multiplied by the Class A Percentage.

            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., First Union Mortgage
Corporation,  Citicorp  Mortgage,  Inc.,  Firstar Bank, NA and The  Huntington
Mortgage Company, as Servicer under the related Servicing Agreement.

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

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

            SERVICING  FEE RATE:  With  respect  to a  Mortgage  Loan,  as set
forth in Section 11.25.

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

            SIMILAR LAW:  As defined in Section 5.02(c).

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

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

                  (1)   normal wear and tear;

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

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

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

            SPECIAL HAZARD LOSS AMOUNT:  As of any Distribution  Date, an amount
equal to  $3,378,649.63  minus the sum of (i) the  aggregate  amount of  Special
Hazard Losses  allocated  solely to the Class B Certificates  in accordance with
Section 4.02(a) and (ii) the Special Hazard Adjustment Amount (as defined below)
as most recently  calculated.  For each  anniversary  of the Cut-Off  Date,  the
Special Hazard  Adjustment  Amount shall be calculated and shall be equal to the
amount,  if any, by which the amount calculated in accordance with the preceding
sentence  (without  giving  effect  to  the  deduction  of  the  Special  Hazard
Adjustment Amount for such  anniversary)  exceeds the greater of (A) the product
of  the  Special  Hazard  Percentage  for  such  anniversary  multiplied  by the
outstanding principal balance of all the Mortgage Loans on the Distribution Date
immediately  preceding such  anniversary,  (B) twice the  outstanding  principal
balance  of the  Mortgage  Loan  in the  Trust  Estate  which  has  the  largest
outstanding  principal  balance on the Distribution  Date immediately  preceding
such  anniversary  and (C) that which is  necessary  to  maintain  the  original
ratings on the  Certificates as evidenced by letters to that effect delivered by
Rating Agencies to the Master Servicer and the Trust Administrator. On and after
the Cross-Over Date, the Special Hazard Loss Amount shall be zero.

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

            STARTUP DAY:  As defined in Section 2.05.

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

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

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

            SUBSTITUTE MORTGAGE LOAN:  As defined in Section 2.02.

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

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

            TRUST  ESTATE:  The corpus of the trust  created by this  Agreement,
consisting of the Mortgage  Loans (other than any Fixed  Retained  Yield),  such
amounts as may be held from time to time in the Certificate  Account (other than
any Fixed Retained Yield), the 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,  but without such  amounts  being
multiplied by the Class A Prepayment Percentage.

            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 and
(d) proceeds of all the foregoing.

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

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

SECTION 2.02      ACCEPTANCE BY TRUST ADMINISTRATOR.

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

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

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

SECTION 2.03      REPRESENTATIONS AND WARRANTIES OF THE MASTER SERVICER AND
            THE SELLER.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

SECTION 2.04      EXECUTION AND DELIVERY OF CERTIFICATES.

            The Trust  Administrator  acknowledges  the  assignment to it of the
Mortgage  Loans and the  delivery of the Owner  Mortgage  Loan Files to it, and,
concurrently with such delivery, 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
October 25, 2029 for purposes of Code Section 860G(a)(1).



<PAGE>



                                   ARTICLE III

                ADMINISTRATION OF THE TRUST ESTATE: SERVICING
                              OF THE MORTGAGE LOANS

SECTION 3.01      CERTIFICATE ACCOUNT.

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

            (b) The Master Servicer shall deposit into the  Certificate  Account
on the day of receipt  thereof  all  amounts  received  by it from any  Servicer
pursuant to any of the Servicing Agreements:

                     (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.

            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      1934 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) 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;  provided  that prior to the Accretion  Termination  Date, an amount
      equal to the amount that would  otherwise be  distributable  in respect of
      interest  to the Accrual  Certificates  pursuant  to this  provision  will
      instead be distributed  in reduction of the Principal  Balances of certain
      Classes of Class A  Certificates,  in each case in accordance with Section
      4.01(b);

                  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;
      provided that prior to the Accretion  Termination Date, an amount equal to
      the amount  that would  otherwise  be  distributable  in respect of unpaid
      interest shortfalls to the Accrual Certificates pursuant to this provision
      will instead be  distributed  in reduction  of the  Principal  Balances of
      certain Classes of Class A  Certificates,  in each case in accordance with
      Section 4.01(b);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

                  twenty-third, to the Holder of the Class A-R Certificate.

            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 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:

I. On each Distribution Date occurring prior to the Accretion  Termination Date,
the Accrual Distribution Amount will be allocated sequentially to the Class A-1,
Class A-2 and Class A-3 Certificates, in that order, until the Principal Balance
of each such Class has been reduced to zero; and

II.  The Class A Non-PO  Principal  Amount  will be  allocated  sequentially  as
follows:

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

            second,  sequentially,  to the Class A-R,  Class A-1,  Class A-2 and
Class A-3 Certificates,  in that order, until the Principal Balance of each such
Class has been reduced to zero; and

            third, to the Class A-4 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-4,
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 or Class B 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 (A) the date of the initial sale of Certificates or (B)
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  or  Class B
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) 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 or Class B  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 or Class B 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 and Class B  Certificates  between an
affiliate of the Seller and the Seller) unless the Trust  Administrator  and the
Seller shall have received (i) a  representation  letter from the  transferee in
the form of  Exhibit J hereto,  to the  effect  that 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 (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 REMIC to fail to  qualify  as a REMIC,  which  Opinion of
Counsel shall be at the sole expense of the Trustee or the Trust  Administrator,
as the case may be.

SECTION 8.11      AUTHENTICATING AGENT.

            The Trust  Administrator may appoint an Authenticating  Agent, which
shall  be   authorized  to  act  on  behalf  of  the  Trust   Administrator   in
authenticating Certificates. Wherever reference is made in this Agreement to the
authentication  of  Certificates  by  the  Trust   Administrator  or  the  Trust
Administrator's  countersignature,  such  reference  shall be deemed to  include
authentication on behalf of the Trust Administrator by the Authenticating  Agent
and  a  certificate   of   authentication   executed  on  behalf  of  the  Trust
Administrator  by the  Authenticating  Agent. The  Authenticating  Agent must be
acceptable  to the  Seller  and the Master  Servicer  and must be a  corporation
organized and doing  business  under the laws of the United States of America or
of any state,  having a  principal  office and place of  business in a state and
city acceptable to the Seller and the Master Servicer, having a combined capital
and surplus of at least  $15,000,000,  authorized  under such laws to do a trust
business  and  subject  to  supervision  or  examination  by  federal  or  state
authorities.

            Any corporation into which the Authenticating Agent may be merged or
converted or with which it may be  consolidated,  or any  corporation  resulting
from any merger,  conversion or consolidation to which the Authenticating  Agent
shall be a party, or any corporation succeeding to the corporate agency business
of the  Authenticating  Agent,  shall be the  Authenticating  Agent  without the
execution  or filing of any  paper or any  further  act on the part of the Trust
Administrator or the Authenticating Agent.

            The  Authenticating  Agent may at any time resign by giving at least
30 days'  advance  written  notice  of  resignation  to the  Trustee,  the Trust
Administrator,  the Seller and the Master Servicer.  The Trust Administrator may
at any time terminate the agency of the  Authenticating  Agent by giving written
notice thereof to the Authenticating  Agent, the Seller and the Master Servicer.
Upon receiving a notice of resignation or upon such a termination, or in case at
any time the Authenticating  Agent shall cease to be eligible in accordance with
the  provisions of this Section 8.11,  the Trust  Administrator  promptly  shall
appoint a  successor  Authenticating  Agent,  which shall be  acceptable  to the
Master  Servicer,  and shall  give  written  notice of such  appointment  to the
Seller, and shall mail notice of such appointment to all Certificateholders. Any
successor  Authenticating  Agent upon  acceptance of its  appointment  hereunder
shall become vested with all the rights,  powers, duties and responsibilities of
its  predecessor  hereunder,   with  like  effect  as  if  originally  named  as
Authenticating  Agent  herein.  No  successor   Authenticating  Agent  shall  be
appointed unless eligible under the provisions of this Section 8.11.

            The  Authenticating  Agent shall have no responsibility or liability
for any action taken by it as such at the direction of the Trust  Administrator.
Any  reasonable  compensation  paid  to  the  Authenticating  Agent  shall  be a
reimbursable expense under Section 8.06.

SECTION 8.12      SEPARATE TRUSTEES AND CO-TRUSTEES.

            The Trustee shall have the power from time to time to appoint one or
more  persons or  corporations  to act either as  co-trustees  jointly  with the
Trustee,  or as  separate  trustees,  for  the  purpose  of  holding  title  to,
foreclosing or otherwise taking action with respect to any Mortgage Loan outside
the state where the  Trustee has its  principal  place of  business,  where such
separate  trustee or  co-trustee  is necessary  or advisable  (or the Trustee is
advised by the Master  Servicer  that such  separate  trustee or  co-trustee  is
necessary  or  advisable)  under  the laws of any  state  in  which a  Mortgaged
Property  is located or for the  purpose of  otherwise  conforming  to any legal
requirement, restriction or condition in any state in which a Mortgaged Property
is located or in any state in which any portion of the Trust  Estate is located.
The Master Servicer shall advise the Trustee when, in its good faith opinion,  a
separate  trustee or  co-trustee  is necessary or  advisable as  aforesaid.  The
separate  trustees or co-trustees so appointed shall be trustees for the benefit
of all of the Certificateholders and shall have such powers, rights and remedies
as shall be specified in the instrument of appointment;  PROVIDED, HOWEVER, that
no such  appointment  shall, or shall be deemed to,  constitute the appointee an
agent of the Trustee.  The Seller and the Master Servicer shall join in any such
appointment,  but such joining shall not be necessary for the  effectiveness  of
such appointment.

            Every separate trustee and co-trustee shall, to the extent permitted
by law, be appointed and act subject to the following provisions and conditions:

                     (i)all powers,  duties,  obligations  and rights  conferred
      upon the Trustee, in respect of the receipt, custody and payment of moneys
      shall be exercised solely by the Trustee;

                     (ii) all  other  rights,  powers,  duties  and  obligations
      conferred or imposed  upon the Trustee  shall be conferred or imposed upon
      and  exercised or performed  by the Trustee and such  separate  trustee or
      co-trustee  jointly,  except  to the  extent  that  under  any  law of any
      jurisdiction  in which  any  particular  act or acts  are to be  performed
      (whether  as Trustee  hereunder  or as  successor  to the Master  Servicer
      hereunder) the Trustee shall be incompetent or unqualified to perform such
      act or acts, in which event such rights,  powers,  duties and  obligations
      (including the holding of title to the Trust Estate or any portion thereof
      in any  such  jurisdiction)  shall  be  exercised  and  performed  by such
      separate trustee or co-trustee;

                     (iii) no separate trustee or co-trustee  hereunder shall be
      personally  liable by reason of any act or omission of any other  separate
      trustee or co-trustee hereunder; and

                     (iv) the Trustee may at any time accept the  resignation of
      or remove any separate  trustee or  co-trustee so appointed by it, if such
      resignation or removal does not violate the other terms of this Agreement.

            Any notice,  request or other  writing given to the Trustee shall be
deemed to have been given to each of the then separate trustees and co-trustees,
as  effectively  as if given to each of them.  Every  instrument  appointing any
separate trustee, co-trustee, or custodian shall refer to this Agreement and the
conditions  of this  Article.  Each separate  trustee and  co-trustee,  upon its
acceptance of the trusts conferred, shall be vested with the estates or property
specified in its instrument of appointment,  either jointly with the Trustee, or
separately,  as may be provided  therein,  subject to all the provisions of this
Agreement,  specifically including every provision of this Agreement relating to
the conduct of,  affecting  the liability  of, or affording  protection  to, the
Trustee. Every such instrument shall be furnished to the Trustee.

            Any separate  trustee,  co-trustee,  or custodian  may, at any time,
constitute  the  Trustee,  its agent or  attorney-in-fact,  with full  power and
authority, to the extent not prohibited by law, to do any lawful act under or in
respect of this Agreement on its behalf and in its name. If any separate trustee
or co-trustee shall die, become incapable of acting,  resign or be removed,  all
of its  estates,  properties,  rights,  remedies and trusts shall vest in and be
exercised by the Trustee to the extent permitted by law, without the appointment
of a new or successor trustee.

            No separate  trustee or  co-trustee  hereunder  shall be required to
meet the  terms  of  eligibility  as a  successor  trustee  under  Section  8.07
hereunder and no notice to  Certificateholders  of the appointment thereof shall
be required under Section 8.09 hereof.

            The  Trustee  agrees to  instruct  its  co-trustees,  if any, to the
extent necessary to fulfill such entity's obligations hereunder.

            The Master  Servicer  shall pay the reasonable  compensation  of the
co-trustees to the extent,  and in accordance  with the standards,  specified in
Section 8.06 hereof.

SECTION 8.13      APPOINTMENT OF CUSTODIANS.

            The  Trust  Administrator  may at any time on or after  the  Closing
Date,  with the consent of the Master  Servicer  and the Seller,  appoint one or
more  Custodians  to hold all or a portion of the Owner  Mortgage  Loan Files as
agent for the Trust  Administrator,  by  entering  into a  Custodial  Agreement.
Subject to this Article VIII, the Trust Administrator  agrees to comply with the
terms of each  Custodial  Agreement  and to  enforce  the terms  and  provisions
thereof  against the Custodian for the benefit of the  Certificateholders.  Each
Custodian shall be a depository institution subject to supervision by federal or
state  authority,  shall  have  a  combined  capital  and  surplus  of at  least
$10,000,000  and shall be qualified to do business in the  jurisdiction in which
it holds any Owner Mortgage Loan File.  Each Custodial  Agreement may be amended
only as provided in Section 10.01(a).

SECTION 8.14      TAX MATTERS; COMPLIANCE WITH REMIC PROVISIONS.

            (a) Each of the  Trustee,  the Trust  Administrator  and the  Master
Servicer  covenants and agrees that it shall  perform its duties  hereunder in a
manner  consistent  with the REMIC  Provisions  and shall not knowingly take any
action or fail to take any action that would (i) affect the determination of the
Trust Estate's  status as 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
Trust Administrator,  the Trust Administrator,  shall (i) prepare or cause to be
prepared, timely cause to be signed by the Trustee and file or cause to be filed
annual  federal  and  applicable  state and local  income  tax  returns  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 Form 8811 and apply for an Employee  Identification  Number with a Form
SS-4  or  any  other   permissible   method   and   respond  to   inquiries   by
Certificateholders or their nominees concerning information returns,  reports or
tax returns;  (vi) maintain (or cause to be maintained  by the  Servicers)  such
records  relating  to the  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-4, 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; (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 the  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  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 6.500% per annum.

SECTION 11.02     CUT-OFF DATE.

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

SECTION 11.03     CUT-OFF DATE AGGREGATE PRINCIPAL BALANCE.

            The Cut-Off Date Aggregate Principal Balance is $300,766,628.93.

SECTION 11.04     ORIGINAL CLASS A PERCENTAGE.

            The Original Class A Percentage is 96.78030025%.

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                $  222,612,500.00
            Class A-2                $  26,468,000.00
            Class A-3                $  10,224,000.00
            Class A-4                $  30,000,000.00
            Class A-PO               $   1,837,405.46
            Class A-R                $         100.00

SECTION 11.06     ORIGINAL CLASS A NON-PO PRINCIPAL BALANCE.

            The Original Class A Non-PO Principal Balance is $289,304,600.00.

SECTION 11.07     ORIGINAL SUBORDINATED PERCENTAGE.

            The Original Subordinated Percentage is 3.21969975%.

SECTION 11.08     ORIGINAL CLASS B-1 PERCENTAGE.

            The Original Class B-1 Percentage is 1.91148926%.

SECTION 11.09     ORIGINAL CLASS B-2 PERCENTAGE.

            The Original Class B-2 Percentage is 0.50312913%.

SECTION 11.10     ORIGINAL CLASS B-3 PERCENTAGE.

            The Original Class B-3 Percentage is 0.30174367%.

SECTION 11.11     ORIGINAL CLASS B-4 PERCENTAGE.

            The Original Class B-4 Percentage is 0.25156456%.

SECTION 11.12     ORIGINAL CLASS B-5 PERCENTAGE.

            The Original Class B-5 Percentage is 0.10069273%.

SECTION 11.13     ORIGINAL CLASS B-6 PERCENTAGE.

            The Original Class B-6 Percentage is 0.15108040%.

SECTION 11.14     ORIGINAL CLASS B PRINCIPAL BALANCE.

            The Original Class B Principal Balance is $9,624,623.47.

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                    $  5,714,000.00
            Class B-2                    $  1,504,000.00
            Class B-3                    $    902,000.00
            Class B-4                    $    752,000.00
            Class B-5                    $    301,000.00
            Class B-6                    $    451,623.47

SECTION 11.16     ORIGINAL CLASS B-1 FRACTIONAL INTEREST.

            The Original Class B-1 Fractional Interest is 1.30821049%.

SECTION 11.17     ORIGINAL CLASS B-2 FRACTIONAL INTEREST.

            The Original Class B-2 Fractional Interest is 0.80508136%.

SECTION 11.18     ORIGINAL CLASS B-3 FRACTIONAL INTEREST.

            The Original Class B-3 Fractional Interest is 0.50333769%.

SECTION 11.19     ORIGINAL CLASS B-4 FRACTIONAL INTEREST.

            The Original Class B-4 Fractional Interest is 0.25177313%.

SECTION 11.20     ORIGINAL CLASS B-5 FRACTIONAL INTEREST.

            The Original Class B-5 Fractional Interest is 0.15108040%.

SECTION 11.21     CLOSING DATE.

            The Closing Date is September 29, 1999.

SECTION 11.22     RIGHT TO PURCHASE.

            The  right of the  Seller  to  purchase  all of the  Mortgage  Loans
pursuant to Section 9.01 hereof  shall be  conditioned  upon the Pool  Scheduled
Principal Balance of the Mortgage Loans being less than  $30,076,662.89  (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),  the  minimum  Denomination  eligible  for wire  transfer on each
Distribution  Date is  $500,000.  With  respect  to the  Class  A-PO and Class B
Certificates,  the  minimum  Denomination  eligible  for wire  transfer  on each
Distribution Date is 100% Percentage Interest.  The Class A-R Certificate is 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-PO  and  Class  A-R  Certificates)   represents  a  $100,000
Denomination.  A Single  Certificate for the Class A-R Certificate  represents a
$100 Denomination.  A Single Certificate for the Class B Certificates represents
a $250,000  Denomination.  A Single  Certificate for the Class A-PO Certificates
represents a $1,837,405.46 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 29th day of September,  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 29th day of September,  1999,  before me, a notary public in
and for the State of Maryland, personally appeared Nancy E. Burgess, known to me
who,  being by me duly sworn,  did depose and say that she resides at Frederick,
Maryland;  that she is a Vice  President  of Norwest  Bank  Minnesota,  National
Association,  a national banking  association,  one of the parties that executed
the foregoing  instrument;  and that she signed her name thereto by order of the
Board of Directors of said corporation.



- ------------------------------
Notary Public
[NOTARIAL SEAL]





<PAGE>






STATE OF                )
                        )  ss.:
COUNTY OF               )


            On this 29th day of September,  1999,  before me, a notary public in
and for _________________,  personally appeared ___________________, known to me
who,  being  by me  duly  sworn,  did  depose  and  say  that  s/he  resides  at
_________________,  _________________;  that s/he is a  ____________________  of
United States Trust Company of New York, a ________________,  one of the parties
that  executed  the  foregoing  instrument;  and that s/he signed  his/her  name
thereto by order of the Board of Directors of said corporation.



- ------------------------------
Notary Public
[NOTARIAL SEAL]



<PAGE>






STATE OF NORTH CAROLINA )
                              )     ss.:
COUNTY OF                     )


            On this 29th day of September,  1999,  before me, a notary public in
and for the State of North Carolina, personally appeared  _____________________,
known to me who,  being by me duly sworn,  did depose and say that he resides at
__________________,  North Carolina; that he is a _____________________ of First
Union National  Bank, a national  banking  association,  one of the parties that
executed  the  foregoing  instrument;  and that s/he signed his name  thereto by
order of the Board of Directors of said corporation.



- ------------------------------
Notary Public
[NOTARIAL SEAL]



<PAGE>




                                   SCHEDULE I

  Norwest Asset Securities Corporation, Mortgage Pass-Through Certificates,
                                 Series 1999-25
               Applicable Unscheduled Principal Receipt Period

                                   FULL            PARTIAL
                                   UNSCHEDULED     UNSCHEDULED
                                   PRINCIPAL       PRINCIPAL
            SERVICER               RECEIPTS        RECEIPTS
            --------               --------        --------

Norwest Mortgage, Inc.                Mid-Month        Mid-Month
First Union Mortgage Corporation      Mid-Month       Prior Month
Citicorp Mortgage, Inc.               Mid-Month       Prior Month
Firstar Bank, NA                      Mid-Month       Prior Month
The Huntington Mortgage Company       Mid-Month       Prior Month



<PAGE>


                                   EXHIBIT A-1
                     [FORM OF FACE OF CLASS A-1 CERTIFICATE]

 [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
   DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
  TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
   THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
  REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
 CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
  BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                        CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-25 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:  September 1, 1999

CUSIP No.:  66937R K8 1              First Distribution Date:  October 25, 1999
Percentage Interest evidenced
 by this Certificate:  %             Denomination:  $

Final Scheduled Maturity Date:  October 25, 2029


            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-1  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and  Servicing  Agreement  dated as of September  29, 1999
(the   "Agreement")   among  the  Seller,   Norwest  Bank  Minnesota,   National
Association,  as master servicer (the "Master  Servicer"),  First Union National
Bank, as trust  administrator (the "Trust  Administrator") and the United States
Trust Company of New York, as trustee (the  "Trustee"),  a summary of certain of
the pertinent  provisions of which is set forth  hereinafter.  To the extent not
defined herein,  the capitalized terms used herein have the meanings ascribed to
such terms in the Agreement.  This Certificate is issued under and is subject to
the terms,  provisions and conditions of the Agreement,  to which  Agreement the
Holder of this  Certificate  by virtue of the  acceptance  hereof assents and by
which such Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-1 Certificates required to be distributed to
Holders of the Class A-1  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-1 Certificates  applicable to each  Distribution Date will be 6.500% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-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  is issued on September 29, 1999, and based on its
issue price of 97.22431%,  including accrued  interest,  and a stated redemption
price  at  maturity  equal  to its  initial  principal  balance  (plus 4 days of
interest  at the  pass-through  rate  hereon),  is issued  with  original  issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays  in  accordance  with  projected  cash  flows   reflecting  the  prepayment
assumption of 300% SPA (as defined in the Prospectus  Supplement dated September
22, 1999 with  respect to the offering of the Class A  Certificates  (except the
Class A-PO Certificates)) used to price this Certificate:  (i) the amount of OID
as a  percentage  of the  initial  principal  balance  of  this  Certificate  is
approximately   2.84791667%;   (ii)  the  annual   yield  to  maturity  of  this
Certificate, compounded monthly, is approximately 7.45%; and (iii) the amount of
OID allocable to the short first accrual  period  (September 29, 1999 to October
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.05348265%.

            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 1999-25 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:  September 1, 1999

CUSIP No.:  66937R K9 9              First Distribution Date:  October 25, 1999
Percentage Interest evidenced
 by this Certificate:  %             Denomination: $

Final Scheduled Maturity Date:  October 25, 2029


            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-2  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and  Servicing  Agreement  dated as of September  29, 1999
(the   "Agreement")   among  the  Seller,   Norwest  Bank  Minnesota,   National
Association,  as master servicer (the "Master  Servicer"),  First Union National
Bank, as trust  administrator (the "Trust  Administrator") and the United States
Trust Company of New York, as trustee (the  "Trustee"),  a summary of certain of
the pertinent  provisions of which is set forth  hereinafter.  To the extent not
defined herein,  the capitalized terms used herein have the meanings ascribed to
such terms in the Agreement.  This Certificate is issued under and is subject to
the terms,  provisions and conditions of the Agreement,  to which  Agreement the
Holder of this  Certificate  by virtue of the  acceptance  hereof assents and by
which such Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-2 Certificates required to be distributed to
Holders of the Class A-2  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-2 Certificates  applicable to each  Distribution Date will be 6.500% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-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  is issued on September 29, 1999, and based on its
issue price of 90.33368%,  including accrued  interest,  and a stated redemption
price  at  maturity  equal  to its  initial  principal  balance  (plus 4 days of
interest  at the  pass-through  rate  hereon),  is issued  with  original  issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays  in  accordance  with  projected  cash  flows   reflecting  the  prepayment
assumption of 300% SPA (as defined in the Prospectus  Supplement dated September
22, 1999 with  respect to the offering of the Class A  Certificates  (except the
Class A-PO Certificates)) used to price this Certificate:  (i) the amount of OID
as a  percentage  of the  initial  principal  balance  of  this  Certificate  is
approximately   9.73854167%;   (ii)  the  annual   yield  to  maturity  of  this
Certificate, compounded monthly, is approximately 8.00%; and (iii) the amount of
OID allocable to the short first accrual  period  (September 29, 1999 to October
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.05251593%.

            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 1999-25 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.

            UNTIL THE ACCRETION  TERMINATION  DATE, THE INTEREST THAT ACCRUES ON
THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE  WILL NOT BE PAYABLE.  BECAUSE SUCH
UNPAID  INTEREST  IS ADDED TO THE  PRINCIPAL  BALANCE  OF THIS  CERTIFICATE  AND
BECAUSE  DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE WILL BE MADE IN THE
MANNER DESCRIBED IN THE AGREEMENT (AS DEFINED HEREIN), THE OUTSTANDING PRINCIPAL
BALANCE  OF THIS  CERTIFICATE  AT ANY TIME MAY BE MORE OR LESS THAN THE  INITIAL
PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                    Cut-Off Date:  September 1, 1999

CUSIP No.:  66937R L2 3             First Distribution Date:  October 25, 1999
Percentage Interest evidenced
 by this Certificate:  %            Denomination:  $

Final  Scheduled  Maturity  Date:  October 25, 2029


            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-3  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and  Servicing  Agreement  dated as of September  29, 1999
(the   "Agreement")   among  the  Seller,   Norwest  Bank  Minnesota,   National
Association,  as master servicer (the "Master  Servicer"),  First Union National
Bank, as trust  administrator (the "Trust  Administrator") and the United States
Trust Company of New York, as trustee (the  "Trustee"),  a summary of certain of
the pertinent  provisions of which is set forth  hereinafter.  To the extent not
defined herein,  the capitalized terms used herein have the meanings ascribed to
such terms in the Agreement.  This Certificate is issued under and is subject to
the terms,  provisions and conditions of the Agreement,  to which  Agreement the
Holder of this  Certificate  by virtue of the  acceptance  hereof assents and by
which such Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-3 Certificates required to be distributed to
Holders of the Class A-3  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-3 Certificates  applicable to each  Distribution Date will be 6.500% per
annum.  Prior to the Accretion  Termination Date, no distribution of interest on
this Certificate will be made. Prior to the Accretion Termination Date, interest
otherwise  available for  distribution on this  Certificate will be added to the
Principal Balance of the Class A-3 Certificates on each  Distribution  Date. The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated  to the Class A-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 September 29, 1999, at an issue price
of 77.09931%,  including  accrued  interest,  and a stated  redemption  price at
maturity  equal to the sum of its initial  principal  balance  and all  interest
distributions  hereon (whether current or accrued),  and is issued with original
issue  discount  ("OID") for federal  income tax  purposes.  Assuming  that this
Certificate  pays  in  accordance  with  projected  cash  flows  reflecting  the
prepayment assumption of 300% SPA (as defined in the Prospectus Supplement dated
September  22, 1999 with  respect to the  offering  of the Class A  Certificates
(except the Class A-PO  Certificates))  used to price this Certificate:  (i) the
amount  of  OID as a  percentage  of  the  initial  principal  balance  of  this
Certificate is approximately 181.33064818%; (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  8.35%; and (iii) the
amount of OID allocable to the short first accrual period (September 29, 1999 to
October  25,  1999) as a  percentage  of the initial  principal  balance of this
Certificate, calculated using the exact method, is approximately 0.46462027%.

            This Certificate  constitutes a "regular interest" in a "real estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By ____________________________
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By ________________________
   Authorized Officer



<PAGE>



                                   EXHIBIT A-4
                     [FORM OF FACE OF CLASS A-4 CERTIFICATE]

 [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
   DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
  TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN
   THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
  REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO
 CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
  BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE &
                        CO., HAS AN INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-25 CLASS A-4

                       evidencing an interest in a pool of
                                      fixed
                      interest rate, conventional, monthly
                                      pay,
                      fully amortizing, first lien, one- to
                        four-family residential mortgage
                     loans, which may include loans secured
                               by shares issued by
                     cooperative housing corporations, sold
                                       by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS  CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY
OF THEIR AFFILIATES,  AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS  IN  REDUCTION  OF  THE  PRINCIPAL   BALANCE  OF  THIS
CERTIFICATE  WILL BE MADE IN THE MANNER  DESCRIBED IN THE POOLING AND  SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.:                     Cut-Off Date:  September 1, 1999

CUSIP No.:  66937R L3 1              First Distribution Date:  October 25, 1999
Percentage Interest evidenced
 by this Certificate:  %             Denomination:  $

Final  Scheduled  Maturity  Date:  October 25, 2029


            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-4  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and  Servicing  Agreement  dated as of September  29, 1999
(the   "Agreement")   among  the  Seller,   Norwest  Bank  Minnesota,   National
Association,  as master servicer (the "Master  Servicer"),  First Union National
Bank, as trust  administrator (the "Trust  Administrator") and the United States
Trust Company of New York, as trustee (the  "Trustee"),  a summary of certain of
the pertinent  provisions of which is set forth  hereinafter.  To the extent not
defined herein,  the capitalized terms used herein have the meanings ascribed to
such terms in the Agreement.  This Certificate is issued under and is subject to
the terms,  provisions and conditions of the Agreement,  to which  Agreement the
Holder of this  Certificate  by virtue of the  acceptance  hereof assents and by
which such Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-4 Certificates required to be distributed to
Holders of the Class A-4  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-4 Certificates  applicable to each  Distribution Date will be 6.500% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-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.

            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 September 29, 1999, and based on its
issue price of 92.00556%,  including accrued  interest,  and a stated redemption
price  at  maturity  equal  to its  initial  principal  balance  (plus 4 days of
interest  at the  pass-through  rate  hereon),  is issued  with  original  issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays  in  accordance  with  projected  cash  flows   reflecting  the  prepayment
assumption of 300% SPA (as defined in the Prospectus  Supplement dated September
22, 1999 with  respect to the offering of the Class A  Certificates  (except the
Class A-PO Certificates)) used to price this Certificate:  (i) the amount of OID
as a  percentage  of the  initial  principal  balance  of  this  Certificate  is
approximately   8.06666667%;   (ii)  the  annual   yield  to  maturity  of  this
Certificate, compounded monthly, is approximately 7.68%; and (iii) the amount of
OID allocable to the short first accrual  period  (September 29, 1999 to October
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.04051202%.

            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 1999-25 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:  September 1, 1999

Percentage Interest evidenced       First Distribution Date:  October 25, 1999
 by this Certificate:  %

                                    Denomination:  $

Final  Scheduled  Maturity  Date:  October 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-PO  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and  Servicing  Agreement  dated as of September  29, 1999
(the   "Agreement")   among  the  Seller,   Norwest  Bank  Minnesota,   National
Association,  as master servicer (the "Master  Servicer"),  First Union National
Bank,  as trust  administrator  (the "Trust  Administrator"),  and United States
Trust Company of New York, as trustee (the  "Trustee"),  a summary of certain of
the pertinent  provisions of which is set forth  hereinafter.  To the extent not
defined herein,  the capitalized terms used herein have the meanings ascribed to
such terms in the Agreement.  This Certificate is issued under and is subject to
the terms,  provisions and conditions of the Agreement,  to which  Agreement the
Holder of this  Certificate  by virtue of the  acceptance  hereof assents and by
which such Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution  Amount for the Class A-PO Certificates  required to be distributed
to Holders of the Class A-PO Certificates on such Distribution  Date, subject to
adjustment  in certain  events as  specified  in the  Agreement.  The Class A-PO
Certificates will not be entitled to distributions in respect of interest.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class A-PO  Certificate  will be made unless such
transfer is exempt from the  registration  requirements of the Securities Act of
1933,  as  amended,  and  any  applicable  state  securities  laws or is made in
accordance  with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof,  (i) the transferee will be required to execute
an  investment  letter in the form  described in the  Agreement and (ii) if such
transfer  is to be made  within  three  years  from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any  affiliate  thereof  was  a  Holder  of  the  Certificates  proposed  to  be
transferred,  and unless  such  transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended,  the Trust  Administrator  or the Seller may
require  the Holder to deliver an opinion of counsel  acceptable  to and in form
and substance  satisfactory to the Trust  Administrator and the Seller that such
transfer is exempt (describing the applicable  exemption and the basis therefor)
from  or is  being  made  pursuant  to  the  registration  requirements  of  the
Securities Act of 1933, as amended,  and of any applicable statute of any state.
The Holder hereof desiring to effect such transfer shall,  and does hereby agree
to,  indemnify  the Trustee,  the Trust  Administrator,  the Seller,  the Master
Servicer,  and any Paying  Agent  acting on behalf of the  Trustee  against  any
liability  that may  result if the  transfer  is not so exempt or is not made in
accordance  with  such  Federal  and state  laws.  In  connection  with any such
transfer, the Trust Administrator will also require (i) a representation letter,
in the form as described in the Agreement,  stating that the transferee is not a
Plan and is not  acting on  behalf  of a Plan or using  the  assets of a Plan to
effect such  purchase or (ii) if such  transferee  is a Plan,  (a) an opinion of
counsel  acceptable  to and in form  and  substance  satisfactory  to the  Trust
Administrator  and the Seller with respect to certain matters and (b) such other
documentation as the Seller or the Master Servicer may require,  as described in
the Agreement.

            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 September 29, 1999, at an issue price
of  66.53125%  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 300% SPA (as
defined in the Prospectus  Supplement  dated  September 22, 1999 with respect to
the offering of the Class A Certificates  (except the Class A-PO  Certificates))
used to price this  Certificate:  (i) the amount of OID as a  percentage  of the
initial  principal  balance of this Certificate is  approximately  33.46875000%;
(ii) the annual yield to maturity of this Certificate,  compounded  monthly,  is
approximately  8.72%;  and (iii) the amount of OID  allocable to the short first
accrual  period  (September 29, 1999 to October 25, 1999) as a percentage of the
initial  principal  balance  of this  Certificate,  calculated  using  the exact
method, is approximately 0.41890383%.

            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 1999-25, 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:  September 1, 1999

CUSIP No.:  66937R L4 9                First Distribution Date: October 25, 1999
Percentage Interest evidenced by this
Certificate:  %                        Denomination:  $100.00

Final  Scheduled  Maturity  Date:  October 25, 2029




<PAGE>




            THIS  CERTIFIES  THAT  __________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions to the Holder of the Class A-R Certificate with respect to a Trust
Estate consisting of a pool of fixed interest rate,  conventional,  monthly pay,
fully amortizing,  first lien, one- to four-family  residential  mortgage loans,
other than the Fixed Retained Yield, if any, with respect thereto, and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of September 29, 1999 (the "Agreement")  among
the Seller,  Norwest Bank Minnesota,  National  Association,  as master servicer
(the "Master Servicer"),  First Union National Bank, as trust administrator (the
"Trust  Administrator")  and the United  States  Trust  Company of New York,  as
trustee (the  "Trustee"),  a summary of certain of the  pertinent  provisions of
which  is  set  forth  hereinafter.  To  the  extent  not  defined  herein,  the
capitalized  terms used herein have the  meanings  ascribed to such terms in the
Agreement.  This  Certificate  is issued  under  and is  subject  to the  terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Class A
Distribution Amount for the Class A-R Certificate  required to be distributed to
the Holder of the Class A-R Certificate on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-R Certificate  applicable to each  Distribution  Date will be 6.500% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-R Certificate, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as  such  name  and  address   shall   appear  on  the   Certificate   Register.
Notwithstanding  the above,  the final  distribution on this Certificate will be
made  after  due  notice  of the  pendency  of such  distribution  and only upon
presentation and surrender of this Certificate at the office or agency specified
by the Trust Administrator for that purpose in the notice of final distribution.

            Reference  is  hereby  made  to  the  further   provisions  of  this
Certificate set forth on the reverse hereof,  which further provisions shall for
all purposes have the same effect as if set forth at this place.

            Unless this  Certificate  has been  countersigned  by an  authorized
officer of the Trust Administrator,  by manual signature, this Certificate shall
not be entitled to any benefit under the Agreement or be valid for any purpose.



<PAGE>




            IN  WITNESS  WHEREOF,   the  Trust  Administrator  has  caused  this
Certificate to be duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trust Administrator



                                       By ____________________________
                                          Authorized Officer

Countersigned:



First Union National Bank,
   Trust Administrator



By ________________________
   Authorized Officer



<PAGE>


                                   EXHIBIT 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.

            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 1999-25, 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:  September 1, 1999

Percentage Interest evidenced by this      First Distribution Date:  October 25,
Certificate:  %                            1999

                                           Denomination:  $

Final  Scheduled  Maturity  Date:  October
25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-1  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and  Servicing  Agreement  dated as of September  29, 1999
(the   "Agreement")   among  the  Seller,   Norwest  Bank  Minnesota,   National
Association,  as master servicer (the "Master  Servicer"),  First Union National
Bank, as trust  administrator (the "Trust  Administrator") and the United States
Trust Company of New York, as trustee (the  "Trustee"),  a summary of certain of
the pertinent  provisions of which is set forth  hereinafter.  To the extent not
defined herein,  the capitalized terms used herein have the meanings ascribed to
such terms in the Agreement.  This Certificate is issued under and is subject to
the terms,  provisions and conditions of the Agreement,  to which  Agreement the
Holder of this  Certificate  by virtue of the  acceptance  hereof assents and by
which such Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates as specified in the Agreement,  any
Class B-1 Distribution Amount required to be distributed to Holders of the Class
B-1 Certificates on such Distribution  Date,  subject to adjustment,  in certain
events,  as specified in the Agreement.  The pass-through  rate on the Class B-1
Certificates  applicable to each Distribution Date will be 6.500% per annum. The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated  to the Class B-1
Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-1  Certificate  will be made  unless 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 September 29, 1999, and based on its
issue price of 92.19306%,  including accrued  interest,  and a stated redemption
price  at  maturity  equal  to its  initial  principal  balance  (plus 4 days of
interest  at the  pass-through  rate  hereon),  is issued  with  original  issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays  in  accordance  with  projected  cash  flows   reflecting  the  prepayment
assumption of 300% SPA (as defined in the Prospectus  Supplement dated September
22, 1999 with  respect to the offering of the Class A  Certificates  (except the
Class A-PO Certificates)) used to price this Certificate:  (i) the amount of OID
as a  percentage  of the  initial  principal  balance  of  this  Certificate  is
approximately   7.87916667  %;  (ii)  the  annual  yield  to  maturity  of  this
Certificate, compounded monthly, is approximately 7.65%; and (iii) the amount of
OID allocable to the short first accrual  period  (September 29, 1999 to October
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.03962144%.

            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.

            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 1999-25, 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:  September 1, 1999

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

Final  Scheduled  Maturity  Date:  October 25, 2029




<PAGE>



            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-2  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and  Servicing  Agreement  dated as of September  29, 1999
(the   "Agreement")   among  the  Seller,   Norwest  Bank  Minnesota,   National
Association,  as master servicer (the "Master  Servicer"),  First Union National
Bank, as trust  administrator (the "Trust  Administrator") and the United States
Trust Company of New York, as trustee (the  "Trustee"),  a summary of certain of
the pertinent  provisions of which is set forth  hereinafter.  To the extent not
defined herein,  the capitalized terms used herein have the meanings ascribed to
such terms in the Agreement.  This Certificate is issued under and is subject to
the terms,  provisions and conditions of the Agreement,  to which  Agreement the
Holder of this  Certificate  by virtue of the  acceptance  hereof assents and by
which such Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the  prior  rights  of the  Class A  Certificates  and  each  Class  of  Class B
Certificates  bearing  a  lower  numerical   designation  as  specified  in  the
Agreement,  any Class B-2  Distribution  Amount  required to be  distributed  to
Holders of the Class B-2  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-2 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-2 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-2  Certificate  will be made  unless 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 September 29, 1999, and based on its
issue price of 90.34931%,  including accrued  interest,  and a stated redemption
price  at  maturity  equal  to its  initial  principal  balance  (plus 4 days of
interest  at the  pass-through  rate  hereon),  is issued  with  original  issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays  in  accordance  with  projected  cash  flows   reflecting  the  prepayment
assumption of 300% SPA (as defined in the Prospectus  Supplement dated September
22, 1999 with  respect to the offering of the Class A  Certificates  (except the
Class A-PO Certificates)) used to price this Certificate:  (i) the amount of OID
as a  percentage  of the  initial  principal  balance  of  this  Certificate  is
approximately   9.72291667%;   (ii)  the  annual   yield  to  maturity  of  this
Certificate, compounded monthly, is approximately 7.94%; and (iii) the amount of
OID allocable to the short first accrual  period  (September 29, 1999 to October
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.04827774%.

            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.

            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 1999-25, 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:  September 1, 1999

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

Final  Scheduled  Maturity  Date:  October 25, 2029


<PAGE>


            THIS   CERTIFIES   THAT   _______________________________   is   the
registered  owner of the Percentage  Interest  evidenced by this  Certificate in
monthly  distributions to the Holders of the Class B-3 Certificates with respect
to a Trust Estate  consisting of a pool of fixed  interest  rate,  conventional,
monthly pay,  fully  amortizing,  first lien,  one- to  four-family  residential
mortgage  loans,  other than the Fixed  Retained  Yield,  if any,  with  respect
thereto,  and which may include loans  secured by shares  issued by  cooperative
housing  corporations  (the "Mortgage Loans") formed by Norwest Asset Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and  Servicing  Agreement  dated as of September  29, 1999
(the   "Agreement")   among  the  Seller,   Norwest  Bank  Minnesota,   National
Association,  as master servicer (the "Master  Servicer"),  First Union National
Bank, as trust  administrator (the "Trust  Administrator") and the United States
Trust Company of New York, as trustee (the  "Trustee"),  a summary of certain of
the pertinent  provisions of which is set forth  hereinafter.  To the extent not
defined herein,  the capitalized terms used herein have the meanings ascribed to
such terms in the Agreement.  This Certificate is issued under and is subject to
the terms,  provisions and conditions of the Agreement,  to which  Agreement the
Holder of this  Certificate  by virtue of the  acceptance  hereof assents and by
which such Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the  prior  rights  of the  Class A  Certificates  and  each  Class  of  Class B
Certificates  bearing  a  lower  numerical   designation  as  specified  in  the
Agreement,  any Class B-3  Distribution  Amount  required to be  distributed  to
Holders of the Class B-3  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-3 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-3 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-3  Certificate  will be made  unless 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 September 29, 1999, and based on its
issue price of 83.72431%,  including accrued  interest,  and a stated redemption
price  at  maturity  equal  to its  initial  principal  balance  (plus 4 days of
interest  at the  pass-through  rate  hereon),  is issued  with  original  issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays  in  accordance  with  projected  cash  flows   reflecting  the  prepayment
assumption of 300% SPA (as defined in the Prospectus  Supplement dated September
22, 1999 with  respect to the offering of the Class A  Certificates  (except the
Class A-PO Certificates)) used to price this Certificate:  (i) the amount of OID
as a  percentage  of the  initial  principal  balance  of  this  Certificate  is
approximately   16.34791667%;   (ii)  the  annual  yield  to  maturity  of  this
Certificate, compounded monthly, is approximately 9.05%; and (iii) the amount of
OID allocable to the short first accrual  period  (September 29, 1999 to October
25, 1999) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.07745351%.

            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
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 1999-25, 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:  September 1, 1999

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

Final  Scheduled  Maturity  Date:  October 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-4  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and  Servicing  Agreement  dated as of September  29, 1999
(the   "Agreement")   among  the  Seller,   Norwest  Bank  Minnesota,   National
Association,  as master servicer (the "Master  Servicer"),  First Union National
Bank, as trust  administrator (the "Trust  Administrator") and the United States
Trust Company of New York, as trustee (the  "Trustee"),  a summary of certain of
the pertinent  provisions of which is set forth  hereinafter.  To the extent not
defined herein,  the capitalized terms used herein have the meanings ascribed to
such terms in the Agreement.  This Certificate is issued under and is subject to
the terms,  provisions and conditions of the Agreement,  to which  Agreement the
Holder of this  Certificate  by virtue of the  acceptance  hereof assents and by
which such Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the  prior  rights  of the  Class A  Certificates  and  each  Class  of  Class B
Certificates  bearing  a  lower  numerical   designation  as  specified  in  the
Agreement,  any Class B-4  Distribution  Amount  required to be  distributed  to
Holders of the Class B-4  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-4 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-4 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-4  Certificate  will be made  unless such
transfer is exempt from the  registration  requirements of the Securities Act of
1933,  as  amended,  and  any  applicable  state  securities  laws or is made in
accordance  with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof,  (i) the transferee will be required to execute
an  investment  letter in the form  described in the  Agreement and (ii) if such
transfer  is to be made  within  three  years  from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any  affiliate  thereof  was  a  Holder  of  the  Certificates  proposed  to  be
transferred,  and unless  such  transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended,  the Trust  Administrator  or the Seller may
require  the Holder to deliver an opinion of counsel  acceptable  to and in form
and substance  satisfactory to the Trust  Administrator and the Seller that such
transfer is exempt (describing the applicable  exemption and the basis therefor)
from  or is  being  made  pursuant  to  the  registration  requirements  of  the
Securities Act of 1933, as amended,  and of any applicable statute of any state.
The Holder hereof desiring to effect such transfer shall,  and does hereby agree
to,  indemnify  the Trustee,  the Trust  Administrator,  the Seller,  the Master
Servicer,  and any Paying  Agent  acting on behalf of the  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 September 29, 1999, and based on its
issue price of 69.30243%,  including accrued  interest,  and a stated redemption
price  at  maturity  equal  to its  initial  principal  balance  (plus 4 days of
interest  at the  pass-through  rate  hereon),  is issued  with  original  issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays  in  accordance  with  projected  cash  flows   reflecting  the  prepayment
assumption of 300% SPA (as defined in the Prospectus  Supplement dated September
22, 1999 with  respect to the offering of the Class A  Certificates  (except the
Class A-PO Certificates)) used to price this Certificate:  (i) the amount of OID
as a  percentage  of the  initial  principal  balance  of  this  Certificate  is
approximately   30.76979167%;   (ii)  the  annual  yield  to  maturity  of  this
Certificate,  compounded monthly, is approximately  11.97%; and (iii) the amount
of OID  allocable  to the short  first  accrual  period  (September  29, 1999 to
October  25,  1999) as a  percentage  of the initial  principal  balance of this
Certificate, calculated using the exact method, is approximately 0.12936000%.

            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
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 1999-25, 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:  September 1, 1999

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

Final  Scheduled  Maturity  Date:  October 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-5  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and  Servicing  Agreement  dated as of September  29, 1999
(the   "Agreement")   among  the  Seller,   Norwest  Bank  Minnesota,   National
Association,  as master servicer (the "Master  Servicer"),  First Union National
Bank, as trust  administrator (the "Trust  Administrator") and the United States
Trust Company of New York, as trustee (the  "Trustee"),  a summary of certain of
the pertinent  provisions of which is set forth  hereinafter.  To the extent not
defined herein,  the capitalized terms used herein have the meanings ascribed to
such terms in the Agreement.  This Certificate is issued under and is subject to
the terms,  provisions and conditions of the Agreement,  to which  Agreement the
Holder of this  Certificate  by virtue of the  acceptance  hereof assents and by
which such Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the  prior  rights  of the  Class A  Certificates  and  each  Class  of  Class B
Certificates  bearing  a  lower  numerical   designation  as  specified  in  the
Agreement,  any Class B-5  Distribution  Amount  required to be  distributed  to
Holders of the Class B-5  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-5 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-5 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-5  Certificate  will be made  unless such
transfer is exempt from the  registration  requirements of the Securities Act of
1933,  as  amended,  and  any  applicable  state  securities  laws or is made in
accordance  with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof,  (i) the transferee will be required to execute
an  investment  letter in the form  described in the  Agreement and (ii) if such
transfer  is to be made  within  three  years  from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any  affiliate  thereof  was  a  Holder  of  the  Certificates  proposed  to  be
transferred,  and unless  such  transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended,  the Trust  Administrator  or the Seller may
require  the Holder to deliver an opinion of counsel  acceptable  to and in form
and substance  satisfactory to the Trust  Administrator and the Seller that such
transfer is exempt (describing the applicable  exemption and the basis therefor)
from  or is  being  made  pursuant  to  the  registration  requirements  of  the
Securities Act of 1933, as amended,  and of any applicable statute of any state.
The Holder hereof desiring to effect such transfer shall,  and does hereby agree
to,  indemnify  the Trustee,  the Trust  Administrator,  the Seller,  the Master
Servicer,  and any Paying  Agent  acting on behalf of the  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 September 29, 1999, and based on its
issue price of 46.44306%,  including accrued  interest,  and a stated redemption
price  at  maturity  equal  to its  initial  principal  balance  (plus 4 days of
interest  at the  pass-through  rate  hereon),  is issued  with  original  issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays  in  accordance  with  projected  cash  flows   reflecting  the  prepayment
assumption of 300% SPA (as defined in the Prospectus  Supplement dated September
22, 1999 with  respect to the offering of the Class A  Certificates  (except the
Class A-PO Certificates)) used to price this Certificate:  (i) the amount of OID
as a  percentage  of the  initial  principal  balance  of  this  Certificate  is
approximately   53.62916667%;   (ii)  the  annual  yield  to  maturity  of  this
Certificate,  compounded monthly, is approximately  19.10%; and (iii) the amount
of OID  allocable  to the short  first  accrual  period  (September  29, 1999 to
October  25,  1999) as a  percentage  of the initial  principal  balance of this
Certificate, calculated using the exact method, is approximately 0.17056352%.

            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
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 1999-25, 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:  September 1, 1999

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

Final  Scheduled  Maturity  Date:  October 25, 2029




<PAGE>




            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-6  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and  Servicing  Agreement  dated as of September  29, 1999
(the   "Agreement")   among  the  Seller,   Norwest  Bank  Minnesota,   National
Association,  as master servicer (the "Master  Servicer"),  First Union National
Bank, as trust  administrator (the "Trust  Administrator") and the United States
Trust Company of New York, as trustee (the  "Trustee"),  a summary of certain of
the pertinent  provisions of which is set forth  hereinafter.  To the extent not
defined herein,  the capitalized terms used herein have the meanings ascribed to
such terms in the Agreement.  This Certificate is issued under and is subject to
the terms,  provisions and conditions of the Agreement,  to which  Agreement the
Holder of this  Certificate  by virtue of the  acceptance  hereof assents and by
which such Holder is bound.

            Pursuant to the terms of the Agreement,  a distribution will be made
on the 25th day of each  month or, if such 25th day is not a Business  Day,  the
Business Day immediately following (the "Distribution Date"),  commencing on the
first  Distribution  Date  specified  above,  to the  Person in whose  name this
Certificate  is  registered at the close of business on the last Business Day of
the month  preceding the month of such  distribution,  in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the  prior  rights  of the  Class A  Certificates  and  each  Class  of  Class B
Certificates  bearing  a  lower  numerical   designation  as  specified  in  the
Agreement,  any Class B-6  Distribution  Amount  required to be  distributed  to
Holders of the Class B-6  Certificates  on such  Distribution  Date,  subject to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-6 Certificates  applicable to each Distribution Date will be
6.500% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-6 Certificates, as described in the Agreement.

            Distributions  on this  Certificate  will be made on  behalf  of the
Trustee  either by the Master  Servicer or by a Paying  Agent  appointed  by the
Master Servicer by check mailed to the address of the Person  entitled  thereto,
as such name and address shall appear on the Certificate  Register,  unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master  Servicer  pursuant to the Pooling and  Servicing  Agreement
that such  payments  are to be made by wire  transfer of  immediately  available
funds.  Notwithstanding  the above,  the final  distribution in reduction of the
Principal  Balance  of this  Certificate  will be made  after due  notice of the
pendency of such  distribution and only upon  presentation and surrender of this
Certificate  at the office or agency  specified by the Trust  Administrator  for
that purpose in the notice of final distribution.

            No  transfer  of a Class B-6  Certificate  will be made  unless such
transfer is exempt from the  registration  requirements of the Securities Act of
1933,  as  amended,  and  any  applicable  state  securities  laws or is made in
accordance  with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof,  (i) the transferee will be required to execute
an  investment  letter in the form  described in the  Agreement and (ii) if such
transfer  is to be made  within  three  years  from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any  affiliate  thereof  was  a  Holder  of  the  Certificates  proposed  to  be
transferred,  and unless  such  transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended,  the Trust  Administrator  or the Seller may
require  the Holder to deliver an opinion of counsel  acceptable  to and in form
and substance  satisfactory to the Trust  Administrator and the Seller that such
transfer is exempt (describing the applicable  exemption and the basis therefor)
from  or is  being  made  pursuant  to  the  registration  requirements  of  the
Securities Act of 1933, as amended,  and of any applicable statute of any state.
The Holder hereof desiring to effect such transfer shall,  and does hereby agree
to,  indemnify  the Trustee,  the Trust  Administrator,  the Seller,  the Master
Servicer,  and any Paying  Agent  acting on behalf of the  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 September 29, 1999, and based on its
issue price of 18.50556%,  including accrued  interest,  and a stated redemption
price  at  maturity  equal  to its  initial  principal  balance  (plus 4 days of
interest  at the  pass-through  rate  hereon),  is issued  with  original  issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays  in  accordance  with  projected  cash  flows   reflecting  the  prepayment
assumption of 300% SPA (as defined in the Prospectus  Supplement dated September
22, 1999 with  respect to the offering of the Class A  Certificates  (except the
Class A-PO Certificates)) used to price this Certificate:  (i) the amount of OID
as a  percentage  of the  initial  principal  balance  of  this  Certificate  is
approximately   81.56666667%;   (ii)  the  annual  yield  to  maturity  of  this
Certificate,  compounded monthly, is approximately  44.16%; and (iii) the amount
of OID  allocable  to the short  first  accrual  period  (September  29, 1999 to
October  25,  1999) as a  percentage  of the initial  principal  balance of this
Certificate, calculated using the exact method, is approximately 0.11932167%.

            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 1999-25 Certificates]

                      NORWEST ASSET SECURITIES CORPORATION
                       MORTGAGE PASS-THROUGH CERTIFICATES
                                 SERIES 1999-25

            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 September 29, 1999 relating to the
issuance of Mortgage Pass-Through Certificates,  Series 1999-25 (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]

<TABLE>
NASCOR
NMI / 1999-23  Exhibit F-1
30 YEAR FIXED RATE NON RELOCATION  LOANS
<CAPTION>

(i)         (ii)                                        (iii)      (iv)        (v)           (vi)      (vii)      (viii)
- -----       ---------------------------  -----   -----  --------   --------    --------      -------   --------   ----------
                                                                               NET
MORTGAGE                                                           MORTGAGE    MORTGAGE      CURRENT   ORIGINAL   SCHEDULED
LOAN                                             ZIP    PROPERTY   INTEREST    INTEREST      MONTHLY   TERM TO    MATURITY
NUMBER      CITY                         STATE   CODE   TYPE       RATE        RATE          PAYMENT   MATURITY   DATE
- --------    ---------------------------  -----  -----   ---------  --------    --------      -------   --------   ----------
<S>        <C>                        <C>     <C>      <C>        <C>        <C>          <C>        <C>        <C>

No Des Moines

</TABLE>

<TABLE>

NASCOR
NMI / 1999-23  Exhibit F-1
30 YEAR FIXED RATE NON RELOCATION  LOANS

(continued)
<CAPTION>


(i)            (ix)            (x)    (xi)        (xii)     (xiii)   (xIv)        (xv)      (xvi)
- -----          --------------  ------ --------- ----------  -------- -----------  ------   ------------
               CUT-OFF
MORTGAGE       DATE                              MORTGAGE            T.O.P.       MASTER    FIXED
LOAN           PRINCIPAL                        INSURANCE   SERVICE  MORTGAGE     SERVICE   RETAINED
NUMBER         BALANCE         LTV    SUBSIDY      CODE     FEE      LOAN         FEE       YIELD
- --------      --------------  ------ --------- ----------  -------- -----------  -------   -----------

<S>        <C>              <C>    <C>      <C>        <C>        <C>         <C>       <C>

</TABLE>


<PAGE>


                                   EXHIBIT F-2

           [Schedule of Mortgage Loans Serviced by Other Servicers]


<TABLE>
NASCOR
NMI / 1999-23  Exhibit F-2
30 YEAR FIXED RATE NON RELOCATION  LOANS
<CAPTION>


(i)           (ii)                                       (iii)       (iv)         (v)         (vi)        (vii)      (viii)
- -----         ----------------------------    -----     -------    --------     --------   ----------   --------   ---------- -
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE    CURRENT     ORIGINAL    SCHEDULED
LOAN                                           ZIP      ROPERTY    INTEREST     INTEREST    MONTHLY      TERM TO    MATURITY
NUMBER        CITY                   STATE    CODE       TYPE        RATE         RATE      PAYMENT     MATURITY      DATE
- --------      --------------------------------------    -------    --------     --------   ----------   --------   -------------
<S>        <C>                      <C>     <C>         <C>        <C>         <C>       <C>             <C>      <C>
4766436       COLUMBUS                OH      43204       SFD        6.625       6.358     $ 1,716.04      360      1-Jul-28
4766545       SOUTHLAKE               TX      76092       SFD        6.625       6.358     $ 2,140.56      360      1-Nov-28
4774135       MEDFORD                 NJ      08055       SFD        6.625       6.358     $ 1,843.14      360      1-Jul-28
4793538       EVANSVILLE              IN      47715       SFD        6.625       6.358     $ 3,304.01      360      1-Sep-28
4806847       SHERBORN                MA      01770       SFD        6.875       6.500     $ 2,386.96      360      1-Sep-28
4809997       HOCKESSIN               DE      19707       SFD        7.500       6.500     $ 2,066.18      360      1-Aug-29
4833189       JEFFERSON               SD      57038       SFD        7.125       6.500     $ 1,654.99      360      1-Jun-29
4838480       FOREST                  VA      24551       SFD        7.875       6.500     $ 2,558.05      360      1-Sep-29
4847682       STONY POINT             NY      10980       SFD        6.625       6.358     $ 3,252.78      360      1-Aug-29
4847840       HUDSON                  MA      01749       SFD        6.875       6.500     $ 1,890.97      360      1-Apr-29
4853470       CASTLE ROCK             CO      80104       SFD        7.125       6.500     $ 2,182.85      360      1-Sep-29
4862213       ROXBURY                 NJ      07876       SFD        7.500       6.500     $ 2,008.50      360      1-Aug-29
4864019       FREEHOLD                NJ      07728       SFD        7.625       6.500     $ 2,371.11      360      1-Aug-29
4870297       RIDGEFIELD              CT      06877       SFD        7.750       6.500     $ 3,891.56      360      1-Sep-29
4882153       NOVI                    MI      48374       SFD        6.500       6.233     $ 1,796.34      360      1-Nov-28
4884372       SANTA ANA               CA      92705       SFD        7.000       6.500     $ 2,698.47      360      1-Jan-29
4900637       PACIFICA                CA      94044       SFD        6.500       6.233     $ 2,528.28      360      1-May-29
4902501       CAMARILLO               CA      93010       SFD        7.000       6.500     $ 3,541.74      360      1-Sep-29
4909491       VIENNA                  VA      22181       SFD        6.750       6.483     $ 2,281.12      360      1-Aug-29
4926293       EDINA                   MN      55416       SFD        7.000       6.500     $ 2,395.09      360      1-Aug-29
4926990       REDDING                 CT      06896       SFD        7.125       6.500     $ 3,772.83      360      1-Sep-29
4927341       ORLANDO                 FL      32836       SFD        7.500       6.500     $ 2,038.56      360      1-Aug-29
4928431       SHELTON                 CT      06484       SFD        6.625       6.358     $ 2,141.20      360      1-Aug-29
4930241       AVON                    IN      46168       SFD        6.625       6.358      $ 815.12       360      1-Jan-29
4934557       LONG VALLEY             NJ      07853       SFD        7.000       6.500     $ 2,262.03      360      1-Sep-29
4934962       FLANDERS                NJ      07836       SFD        7.625       6.500     $ 2,183.55      360      1-Aug-29
4939737       TUSTIN                  CA      92782       SFD        6.500       6.233     $ 1,674.99      360      1-Sep-29
4940322       AUSTIN                  TX      78726       SFD        7.375       6.500     $ 3,170.45      360      1-Aug-29
4940853       BRIDGEWATER             NJ      08807       SFD        7.500       6.500     $ 2,020.04      360      1-Jul-29
4940887       SAINT CHARLES           IL      60175       SFD        6.750       6.483     $ 2,334.96      360      1-Mar-29
4943361       SPRINGBORO              OH      45066       SFD        7.500       6.500     $ 2,013.74      360      1-Jun-29
4943534       RINGOES                 NJ      08551       SFD        6.500       6.233     $ 1,934.13      360      1-Aug-29
4944592       LEESBURG                VA      20175       SFD        6.500       6.233     $ 3,193.21      360      1-Aug-29
4944985       BELLEVUE                WA      98006       SFD        7.000       6.500     $ 3,945.25      360      1-May-29
4945963       EASTON                  PA      18042       SFD        6.875       6.500     $ 1,722.74      360      1-Sep-29
4948455       WEST HARTFORD           CT      06107       SFD        7.125       6.500     $ 1,972.65      360      1-Mar-29
4949975       GREAT NECK              NY      11021       SFD        6.750       6.483     $ 2,724.12      360      1-Jul-29
4951187       HOCKESSIN               DE      19707       SFD        7.125       6.500     $ 2,115.48      360      1-Aug-29
4952086       BASKING RIDGE           NJ      07920       SFD        6.875       6.500     $ 3,378.26      360      1-Jul-29
4952218       CHESTERFIELD            MO      63005       SFD        7.125       6.500     $ 2,157.93      360      1-Sep-29
4952406       CHANDLER                AZ      85248       SFD        7.125       6.500     $ 1,834.54      360      1-Aug-29
4955356       HILLSBOROUGH            NJ      08876       SFD        6.750       6.483     $ 2,811.72      360      1-Jul-29
4957243       DAVIDSONVILLE           MD      21035       SFD        7.000       6.500     $ 2,128.97      360      1-Aug-29
4960056       SPRING                  TX      77389       SFD        6.750       6.483     $ 1,625.07      360      1-Sep-29
4961018       IRVINE                  CA      92602       SFD        6.500       6.233     $ 2,471.39      360      1-Jun-29
4964889       WAKE FOREST             NC      27587       SFD        6.750       6.483     $ 6,226.55      360      1-Aug-29
4965113       LYONS                   CO      80540       SFD        7.250       6.500     $ 1,997.76      360      1-Mar-29
4966714       WESTON                  CT      06883       SFD        6.625       6.358     $ 2,299.36      360      1-Jun-29
4967391       AUDUBON                 PA      19403       SFD        7.250       6.500     $ 1,875.99      360      1-Aug-29
4968748       TYRONE                  GA      30290       SFD        6.875       6.500     $ 1,795.39      360      1-Sep-29
4969083       ROCHESTER               MI      48307       SFD        6.875       6.500     $ 2,134.37      360      1-Jul-29
4970858       NEW YORK                NY      10025       COP        6.625       6.358     $ 2,465.20      360      1-Jul-29
4972141       MCLEAN                  VA      22102       SFD        6.875       6.500     $ 3,940.92      360      1-Jul-29
4973859       CLAYTON                 CA      94517       SFD        7.250       6.500     $ 2,430.60      360      1-Sep-29
4974134       POTTERSVILLE            NJ      07979       SFD        6.750       6.483     $ 1,835.54      360      1-Aug-29
4974638       LONG VALLEY             NJ      07853       SFD        7.125       6.500     $ 2,374.42      360      1-Sep-29
4974917       WESTFIELD               NJ      07090       SFD        7.750       6.500     $ 2,075.81      360      1-Sep-29
4976110       CHESTER                 NJ      07930       SFD        6.500       6.233     $ 3,016.23      360      1-Sep-29
4976489       ALPHARETTA              GA      30022       SFD        7.250       6.500     $ 2,428.55      360      1-Jun-29
4977137       CHANHASSEN              MN      55317       SFD        7.500       6.500     $ 2,138.28      360      1-Sep-29
4978498       CINCINNATI              OH      45243       SFD        7.000       6.500     $ 5,089.57      360      1-Aug-29
4978543       MORGANVILLE             NJ      07751       SFD        7.500       6.500     $ 1,789.29      360      1-Sep-29
4979072       MANALAPAN               NJ      07726       SFD        7.250       6.500     $ 2,670.73      360      1-Jul-29
4979518       GREEN BROOK             NJ      08812       SFD        6.875       6.500     $ 2,299.26      360      1-Sep-29
4980529       FENTON                  MI      48430       SFD        7.375       6.500     $ 1,761.23      360      1-Aug-29
4980915       ADA                     MI      49301       SFD        7.625       6.500     $ 1,765.24      360      1-Aug-29
4982485       INVERNESS               IL      60010       SFD        6.750       6.483     $ 3,891.59      360      1-Sep-29
4983873       NORTH WALES             PA      19454       SFD        6.500       6.233     $ 1,547.31      360      1-Aug-29
4984926       BELLE MEAD              NJ      08502       SFD        6.875       6.500     $ 2,351.81      360      1-Jul-29
4986492       NOVI                    MI      48375       SFD        7.000       6.500     $ 2,629.61      360      1-May-29
4986651       BIRMINGHAM              AL      35242       SFD        8.000       6.500     $ 1,884.75      360      1-Sep-29
4986821       LOS GATOS               CA      95032       SFD        8.000       6.500     $ 2,905.71      360      1-Aug-29
4989869       SUMMIT                  NJ      07901       SFD        7.125       6.500     $ 2,256.29      360      1-Sep-29
4990193       SIMI                    CA      93062       SFD        7.000       6.500     $ 1,764.72      360      1-Jul-29
4990345       HINGHAM                 MA      02043       SFD        7.375       6.500     $ 4,489.39      360      1-Aug-29
4990416       BROOKFIELD              WI      53045       SFD        7.375       6.500     $ 2,141.10      360      1-Aug-29
4990660       CARY                    NC      27511       SFD        7.625       6.500     $ 2,088.00      360      1-Aug-29
4990691       HARRISON                NY      10528       SFD        6.875       6.500     $ 3,528.92      360      1-Jul-29
4990772       HARTSDALE               NY      10530       SFD        8.000       6.500     $ 2,839.67      360      1-Aug-29
4990799       FAIRFAX                 VA      22030       SFD        7.125       6.500     $ 2,607.30      360      1-Jun-29
4990837       EVANSVILLE              IN      47701       SFD        6.750       6.483     $ 2,853.84      360      1-Sep-29
4991197       SAN JOSE                CA      95125       SFD        7.000       6.500     $ 2,601.67      360      1-May-29
4991465       PRINCETON               NJ      08540       SFD        7.375       6.500     $ 2,667.05      360      1-Jul-29
4991521       CHICAGO                 IL      60600       LCO        7.250       6.500     $ 3,058.54      360      1-May-29
4991535       RIVERSIDE               CT      06878       SFD        7.125       6.500     $ 3,206.91      360      1-Jun-29
4991742       PALO ALTO               CA      94306       SFD        7.000       6.500     $ 4,317.82      360      1-Aug-29
4991932       PLYMOUTH                MN      55447       SFD        7.750       6.500     $ 1,862.68      360      1-Aug-29
4992577       AVON                    CT      06001       SFD        7.250       6.500     $ 2,387.62      360      1-Aug-29
4993141       RIDGEFIELD              CT      06877       SFD        7.375       6.500     $ 2,410.46      360      1-Jul-29
4993402       MENDHAM                 NJ      07945       SFD        6.875       6.500     $ 3,416.03      360      1-Aug-29
4993684       ISSAQUAH                WA      98029       SFD        7.500       6.500     $ 2,134.01      360      1-Aug-29
4994282       SHELTON                 CT      06484       SFD        7.000       6.500     $ 2,532.81      360      1-Jun-29
4994752       EAGAN                   MN      55122       SFD        7.250       6.500     $ 2,685.27      360      1-Aug-29
4995359       ALBANY                  CA      94706       SFD        7.750       6.500     $ 1,882.74      360      1-Sep-29
4995615       WEST WHITELAND          PA      19341       SFD        7.250       6.500     $ 1,910.10      360      1-Aug-29
4995629       BROOKFIELD              CT      06804       SFD        7.125       6.500     $ 1,875.30      360      1-Aug-29
4996002       WESTPORT                CT      06880       SFD        7.000       6.500     $ 4,158.15      360      1-Aug-29
4996083       LEHI                    UT      84043       SFD        7.500       6.500     $ 1,723.22      360      1-Aug-29
4996449       PITTSTOWN               NJ      08867       SFD        6.500       6.233     $ 2,207.19      360      1-Sep-29
4996777       NEWTOWN                 CT      06470       SFD        6.875       6.500     $ 3,087.57      360      1-Aug-29
4996897       ACWORTH                 GA      30101       SFD        6.625       6.358     $ 2,319.82      360      1-Jul-29
4996951       SOMERVILLE              NJ      08876       SFD        6.750       6.483     $ 1,576.10      360      1-Jun-29
4997277       BELLE MEAD              NJ      08502       SFD        7.375       6.500     $ 2,453.31      360      1-Sep-29
4998391       ALPHARETTA              GA      30022       SFD        6.875       6.500     $ 2,378.09      360      1-Jul-29
4998619       AVONDALE                PA      19311       SFD        7.000       6.500     $ 3,449.60      360      1-Aug-29
4999662       FAIRFIELD               CT      06430       SFD        6.875       6.500     $ 6,513.78      360      1-Aug-29
4999809       PITTSFORD               NY      14534       SFD        7.125       6.500     $ 2,957.63      360      1-Sep-29
5000466       GLENSIDE                PA      19038       SFD        6.875       6.500     $ 2,259.84      360      1-Jul-29
5001290       WESTFORD                MA      01886       SFD        6.750       6.483     $ 2,289.56      360      1-Jun-29
5002219       BREWSTER                NY      10509       SFD        7.750       6.500     $ 2,077.60      360      1-Aug-29
5002390       INDIANAPOLIS            IN      46236       SFD        7.375       6.500     $ 2,657.38      360      1-Jul-29
5002547       GRAFTON                 MA      01519       SFD        7.875       6.500     $ 2,010.62      360      1-Jul-29
5002735       POWAY                   CA      92064       SFD        7.250       6.500     $ 3,383.60      360      1-Sep-29
5004473       MANDEVILLE              LA      70471       SFD        7.125       6.500     $ 1,717.99      360      1-Sep-29
5004497       SUDBURY                 MA      01776       SFD        6.625       6.358     $ 3,201.55      360      1-Jul-29
5004904       WATCHUNG                NJ      07060       SFD        6.750       6.483     $ 3,476.49      360      1-Aug-29
5005928       NEW FAIRFIELD           CT      06812       SFD        7.000       6.500     $ 3,110.29      360      1-Jul-29
5006247       WARREN                  NJ      07059       SFD        6.375       6.108     $ 3,743.22      360      1-Aug-29
5006426       PLANO                   TX      75093       SFD        7.125       6.500     $ 3,072.16      360      1-Aug-29
5006466       LEXINGTON               SC      29072       SFD        7.250       6.500     $ 2,621.61      360      1-Jun-29
5006475       LOS GATOS               CA      95030       SFD        7.375       6.500     $ 4,449.68      360      1-Aug-29
5006678       GILROY                  CA      95020       SFD        6.625       6.358     $ 3,183.95      360      1-Jun-29
5006761       IRVINE                  CA      92602       SFD        6.750       6.483     $ 1,779.43      360      1-Sep-29
5007036       SAINT CHARLES           IL      60175       SFD        6.500       6.233     $ 1,801.40      360      1-Sep-29
5007266       UPPER MONTCLAIR         NJ      07043       SFD        6.875       6.500     $ 3,021.88      360      1-Sep-29
5007472       OAKTON                  VA      22124       SFD        6.875       6.500     $ 1,937.94      360      1-Jun-29
5007568       SPARTA                  NJ      07871       SFD        6.625       6.358     $ 3,137.53      360      1-Aug-29
5008381       BEDMINSTER              NJ      07921       SFD        7.000       6.500     $ 2,328.56      360      1-Sep-29
5009026       MINNEAPOLIS             MN      55419       SFD        7.250       6.500     $ 2,520.65      360      1-Jun-29
5009815       WEST HARTFORD           CT      06107       SFD        6.875       6.500     $ 1,970.79      360      1-Aug-29
5010100       CLAYTON                 CA      94517       SFD        7.000       6.500     $ 2,651.24      360      1-Aug-29
5011111       SPARTA                  NJ      07871       SFD        6.500       6.233     $ 2,477.71      360      1-Aug-29
5011255       CASTLE ROCK             CO      80104       SFD        6.875       6.500     $ 2,061.45      360      1-Sep-29
5011514       AVON                    CT      06001       SFD        6.375       6.108     $ 1,746.84      360      1-Aug-29
5011537       VIENNA                  VA      22182       SFD        6.750       6.483     $ 1,945.80      360      1-Aug-29
5011555       BOSTON                  MA      02118       LCO        7.125       6.500     $ 2,032.95      360      1-Aug-29
5011807       MUNDELEIN               IL      60060       SFD        7.375       6.500     $ 2,741.64      360      1-Aug-29
5012262       CENTERVILLE             MN      55038       SFD        7.500       6.500     $ 1,786.50      360      1-Sep-29
5012322       MEDIA                   PA      19063       SFD        7.625       6.500     $ 2,102.15      360      1-Sep-29
5012479       AUSTIN                  TX      78746       SFD        6.500       6.233     $ 2,245.11      360      1-Aug-29
5012520       HAMDEN                  CT      06518       SFD        6.750       6.483     $ 2,451.71      360      1-Jul-29
5012875       RIDGEFIELD              CT      06877       SFD        6.625       6.358     $ 2,816.73      360      1-Jul-29
5013003       CHICAGO                 IL      60657       LCO        7.125       6.500     $ 2,694.88      360      1-Jul-29
5013557       SILVER SPRING           MD      20905       SFD        7.625       6.500     $ 2,541.69      360      1-Aug-29
5013612       RANCHO PALOS VERDES     CA      90274       SFD        6.375       6.108     $ 1,871.61      360      1-May-29
5014227       CONCORD                 MA      01742       LCO        7.375       6.500     $ 3,025.16      360      1-Aug-29
5014341       WINSTON SALEM           NC      27106       SFD        7.750       6.500     $ 2,179.33      360      1-Sep-29
5014872       STRONGSVILLE            OH      44136       SFD        6.750       6.483     $ 2,142.32      360      1-Sep-29
5014896       MARIETTA                GA      30062       SFD        7.500       6.500     $ 2,022.83      360      1-Sep-29
5015004       PALO ALTO               CA      94306       SFD        7.250       6.500     $ 4,604.69      360      1-Aug-29
5015350       NORTH BEND              WA      98045       SFD        7.000       6.500     $ 2,295.30      360      1-Aug-29
5015421       ASHBURN                 VA      20147       SFD        7.375       6.500     $ 1,767.44      360      1-Aug-29
5015710       ASHBURN                 VA      20147       SFD        7.125       6.500     $ 2,602.59      360      1-Sep-29
5015773       CLAYTON                 NC      27520       SFD        7.250       6.500     $ 1,719.09      360      1-Aug-29
5015780       BENICIA                 CA      94510       SFD        7.375       6.500     $ 1,816.48      360      1-Aug-29
5016808       NAPERVILLE              IL      60564       SFD        6.875       6.500     $ 2,791.95      360      1-Jul-29
5016968       CHARLOTTE               NC      28226       PUD        6.750       6.483     $ 2,270.10      360      1-Sep-29
5017039       WILBRAHAM               MA      01095       SFD        6.500       6.233     $ 3,097.14      360      1-Jun-29
5017197       BETTENDORF              IA      52722       SFD        7.375       6.500     $ 2,037.50      360      1-Aug-29
5017230       NOVATO                  CA      94945       SFD        7.125       6.500     $ 3,894.77      360      1-Aug-29
5017462       BOYLSTON                MA      01505       SFD        6.625       6.358     $ 2,145.05      360      1-Jul-29
5017492       WEST CHESTER            PA      19382       SFD        6.625       6.358     $ 1,895.33      360      1-Sep-29
5017556       CHESTER                 NJ      07930       SFD        7.250       6.500     $ 3,197.71      360      1-Aug-29
5017760       AUSTIN                  TX      78731       SFD        7.625       6.500     $ 2,555.05      360      1-Sep-29
5018487       WARREN                  NJ      07059       SFD        6.875       6.500     $ 2,299.26      360      1-Aug-29
5018600       PLANO                   TX      75093       SFD        7.000       6.500     $ 2,113.67      360      1-Jul-29
5018774       ROXBURY TOWNSHIP        NJ      07876       SFD        7.000       6.500     $ 1,957.99      360      1-Sep-29
5018795       READINGTON              NJ      08870       SFD        6.875       6.500     $ 2,167.87      360      1-Aug-29
5018995       CROFTON                 MD      21114       SFD        7.750       6.500     $ 1,803.57      360      1-Sep-29
5019184       BROOKFIELD              CT      06804       SFD        7.000       6.500     $ 2,395.09      360      1-Aug-29
5019210       NEW YORK                NY      10128       COP        6.250       5.983     $ 3,306.41      360      1-Aug-29
5019555       CHULA VISTA             CA      91915       SFD        7.875       6.500     $ 2,094.73      360      1-Aug-29
5019760       MONTVILLE               NJ      07045       SFD        7.250       6.500     $ 4,607.08      360      1-Aug-29
5019770       TULSA                   OK      74137       SFD        6.875       6.500     $ 2,233.56      360      1-Aug-29
5019772       BOOTHWYN                PA      19061       SFD        7.000       6.500     $ 1,756.40      360      1-Aug-29
5020170       BENICIA                 CA      94510       SFD        6.750       6.483     $ 1,738.25      360      1-Aug-29
5021013       TOWN AND COUNTRY        MO      63017       SFD        7.375       6.500     $ 3,108.04      360      1-Sep-29
5021022       MOORESTOWN              NJ      07960       LCO        6.750       6.483     $ 1,926.34      360      1-Aug-29
5021025       GRANITE BAY             CA      95746       SFD        6.500       6.233     $ 3,746.90      360      1-Jul-29
5021124       SIMI VALLEY             CA      93065       SFD        6.750       6.483     $ 2,259.72      360      1-Jun-29
5021391       BARRINGTON              IL      60010       SFD        7.000       6.500     $ 2,687.83      360      1-Aug-29
5021451       FAIRFIELD               CT      06430       SFD        6.875       6.500     $ 2,312.39      360      1-Aug-29
5021736       SCITUATE                MA      02066       SFD        6.625       6.358     $ 2,755.90      360      1-Sep-29
5021975       AVON                    CT      06001       SFD        7.000       6.500     $ 2,086.39      360      1-Aug-29
5022024       COLLEYVILLE             TX      76034       SFD        7.125       6.500     $ 1,953.79      360      1-Aug-29
5022278       KENT                    WA      98042       SFD        7.750       6.500     $ 2,127.39      360      1-Aug-29
5022498       INDIANAPOLIS            IN      46226       SFD        8.375       6.500     $ 2,003.56      360      1-Sep-29
5022500       POTOMAC                 MD      20854       SFD        6.875       6.500     $ 2,135.02      360      1-Sep-29
5022842       SUMMIT                  NJ      07061       SFD        7.125       6.500     $ 3,395.55      360      1-Aug-29
5023084       MODESTO                 CA      95355       SFD        6.750       6.483     $ 1,848.51      360      1-Aug-29
5024148       WAPPINGERS FALLS        NY      12590       SFD        7.000       6.500     $ 2,604.66      360      1-Sep-29
5024395       BASKING RIDGE           NJ      07920       SFD        6.625       6.358     $ 2,369.16      360      1-Sep-29
5024502       PLEASANTON              CA      94566       SFD        7.875       6.500     $ 2,900.21      360      1-Aug-29
5024727       NEW YORK                NY      10022       COP        7.375       6.500     $ 2,935.37      360      1-Sep-29
5025477       REDDING                 CT      06896       SFD        6.750       6.483     $ 2,107.95      360      1-Sep-29
5025726       MONTVALE                NJ      07645       SFD        7.250       6.500     $ 2,796.93      360      1-Aug-29
5025835       BRIDGEWATER             NJ      08807       SFD        6.750       6.483     $ 2,091.09      360      1-Aug-29
5026412       LITTLETON               CO      80124       SFD        7.250       6.500     $ 3,069.80      360      1-Aug-29
5026454       COCOA                   FL      32922       SFD        7.500       6.500     $ 2,097.65      360      1-Aug-29
5027704       LAKE ELMO               MN      55042       SFD        6.875       6.500     $ 2,483.20      360      1-Sep-29
5027744       FLOWER MOUND            TX      75028       SFD        7.125       6.500     $ 2,161.80      360      1-Sep-29
5027751       UNION CITY              CA      94587       SFD        7.750       6.500     $ 3,055.86      360      1-Sep-29
5028142       ISSAQUAH                WA      98027       SFD        7.125       6.500     $ 2,164.19      360      1-Aug-29
5028152       HARTLAND                WI      53029       SFD        6.875       6.500     $ 3,040.60      360      1-Sep-29
5028168       HINGHAM                 MA      02043       SFD        7.500       6.500     $ 2,932.51      360      1-Sep-29
5028231       ATLANTA                 GA      30350       SFD        7.000       6.500     $ 2,278.00      360      1-Aug-29
5028317       CRANBURY                NJ      08512       SFD        7.625       6.500     $ 2,089.41      360      1-Sep-29
5028456       MINNETONKA              MN      55345       SFD        6.875       6.500     $ 2,496.33      360      1-Aug-29
5028814       WEST BLOOMFIELD         MI      48322       SFD        7.250       6.500     $ 3,687.17      360      1-Jul-29
5028909       WHITEHOUSE STATION      NJ      08889       SFD        8.125       6.500     $ 2,459.16      360      1-Sep-29
5028955       NOVATO                  CA      94947       SFD        8.000       6.500     $ 2,403.82      360      1-Sep-29
5029504       FARMINGTON              CT      06032       SFD        7.125       6.500     $ 2,576.98      360      1-Aug-29
5029661       DECATUR                 GA      30033       SFD        6.875       6.500     $ 1,923.16      360      1-Jul-29
5029786       AUDUBON                 PA      19403       SFD        6.875       6.500     $ 1,797.36      360      1-Aug-29
5030268       ORONO                   MN      55356       SFD        6.875       6.500     $ 2,627.72      360      1-Aug-29
5030548       NORTH WALES             PA      19454       SFD        7.750       6.500     $ 2,514.61      360      1-Jun-29
5031077       CRYSTAL LAKE            IL      60014       SFD        7.250       6.500     $ 2,715.07      360      1-Aug-29
5031433       NORWALK                 CT      06850       SFD        7.000       6.500     $ 1,929.38      360      1-Aug-29
5032005       EVANS                   GA      30809       SFD        7.375       6.500     $ 3,280.71      360      1-Sep-29
5032051       DANVILLE                CA      94526       SFD        7.750       6.500     $ 3,152.22      360      1-Aug-29
5032577       NIPOMO                  CA      93444       SFD        7.375       6.500     $ 2,304.93      360      1-Aug-29
5032616       SAN JOSE                CA      95129       SFD        7.625       6.500     $ 2,264.94      360      1-Aug-29
5032741       WEST ORANGE             NJ      07052       SFD        7.250       6.500     $ 3,683.76      360      1-Sep-29
5033042       MAHWAH                  NJ      07430       SFD        7.250       6.500     $ 3,819.51      360      1-Aug-29
5033066       FRANKLIN                TN      37067       SFD        7.000       6.500     $ 2,513.05      360      1-Jul-29
5033146       FALLS CHURCH            VA      22041       SFD        6.750       6.483     $ 1,764.19      360      1-Aug-29
5033175       NEW YORK                NY      10013       HCO        6.750       6.483     $ 8,431.78      360      1-Aug-29
5033392       TOLLAND                 CT      06084       SFD        7.000       6.500     $ 2,024.52      360      1-Aug-29
5033665       WESTON                  CT      06883       SFD        6.375       6.108     $ 3,899.19      360      1-Sep-29
5033711       WELLESLEY               MA      02482       SFD        6.750       6.483     $ 2,561.97      360      1-Aug-29
5033750       ALEXANDRIA              VA      22314       SFD        6.625       6.358     $ 2,781.20      360      1-Aug-29
5034258       SOUTHBURY               CT      06488       SFD        6.375       6.108     $ 1,778.03      360      1-Aug-29
5034284       SOUTHLAKE               TX      76092       SFD        7.125       6.500     $ 2,166.68      360      1-Aug-29
5034380       BETHESDA                MD      20816       SFD        6.500       6.233     $ 2,307.05      360      1-Jul-29
5034599       WYNCOTE                 PA      19095       SFD        7.375       6.500     $ 2,368.33      360      1-Sep-29
5034761       PRIOR LAKE              MN      55372       SFD        7.750       6.500     $ 2,288.94      360      1-Aug-29
5034880       STATEN ISLAND           NY      10304       SFD        6.750       6.483     $ 3,398.66      360      1-Aug-29
5034987       LINDSTROM               MN      55045       SFD        7.625       6.500     $ 1,995.63      360      1-Aug-29
5035024       VIENNA                  VA      22182       SFD        7.875       6.500     $ 2,153.46      360      1-Aug-29
5035320       NORWELL                 MA      02061       SFD        6.750       6.483     $ 2,107.95      360      1-Aug-29
5035366       ESSEX JUNCTION          VT      05453       SFD        7.250       6.500     $ 1,851.77      360      1-Sep-29
5035678       HOUSTON                 TX      77041       SFD        6.875       6.500     $ 1,672.55      360      1-Aug-29
5035758       MADISON                 AL      35758       SFD        7.250       6.500     $ 1,709.88      360      1-Aug-29
5035768       DOYLESTOWN              PA      18901       SFD        7.000       6.500     $ 2,328.56      360      1-Aug-29
5035834       CALDWELL                NJ      07006       SFD        7.250       6.500     $ 2,369.89      360      1-Jul-29
5036082       ATLANTA                 GA      30327       SFD        6.875       6.500     $ 4,270.04      360      1-Aug-29
5036152       DOVE CANYON             CA      92679       SFD        7.000       6.500     $ 1,829.59      360      1-Aug-29
5036163       FRANKLIN                MA      02038       SFD        6.625       6.358     $ 2,894.21      360      1-Aug-29
5036179       SHARON                  MA      02067       SFD        7.000       6.500     $ 2,315.26      360      1-Aug-29
5036321       LOWER PROVIDENCE        PA      19403       SFD        6.750       6.483     $ 1,764.19      360      1-Jul-29
5036324       CHICAGO                 IL      60614       SFD        7.000       6.500     $ 3,991.82      360      1-Aug-29
5036409       ROLLING MEADOWS         IL      60008       SFD        7.875       6.500     $ 2,505.84      360      1-Aug-29
5036474       WHITEHOUSE STATION      NJ      08889       SFD        6.750       6.483     $ 2,610.61      360      1-Aug-29
5036679       DALLAS                  TX      75240       SFD        6.500       6.233     $ 5,998.33      360      1-Jul-29
5036774       WASHINGTON              DC      20015       SFD        6.750       6.483     $ 2,432.25      360      1-Aug-29
5036849       HAVERFORD               PA      19041       SFD        7.250       6.500     $ 3,615.54      360      1-Aug-29
5037072       SANDY HOOK              CT      06482       SFD        6.875       6.500     $ 1,839.41      360      1-Sep-29
5037251       LONGMEADOW              MA      01106       SFD        7.125       6.500     $ 2,506.24      360      1-Sep-29
5037387       MANDEVILLE              LA      70448       SFD        6.625       6.358     $ 1,600.78      360      1-Jul-29
5037853       FULLERTON               CA      92835       SFD        7.375       6.500     $ 3,138.43      360      1-Aug-29
5038098       WESTWOOD                MA      02090       SFD        6.750       6.483     $ 2,983.56      360      1-Aug-29
5038166       STAMFORD                CT      06903       SFD        7.250       6.500     $ 2,592.27      360      1-Aug-29
5038172       FLORHAM PARK            NJ      07932       LCO        7.125       6.500     $ 2,863.31      360      1-Aug-29
5038261       OAKLAND                 CA      94602       SFD        7.750       6.500     $ 1,957.24      360      1-Aug-29
5038314       VALENCIA                CA      91354       SFD        7.375       6.500     $ 1,899.36      360      1-Aug-29
5038375       NEW MILFORD             CT      06776       SFD        6.750       6.483     $ 1,764.19      360      1-Aug-29
5038578       WESTPORT                CT      06880       SFD        7.000       6.500     $ 4,031.56      240      1-Sep-19
5038587       BREA                    CA      92821       SFD        7.750       6.500     $ 2,292.52      360      1-Aug-29
5038696       PHILADELPHIA            PA      19106       SFD        8.125       6.500     $ 3,266.99      360      1-Aug-29
5038747       CLARENCE                NY      14031       SFD        8.375       6.500     $ 3,488.74      360      1-Aug-29
5038797       BETHESDA                MD      20814       SFD        7.375       6.500     $ 2,461.57      360      1-Sep-29
5039007       WALNUT CREEK            CA      94596       SFD        7.250       6.500     $ 2,469.48      360      1-Aug-29
5039014       WESTPORT                CT      06880       SFD        8.000       6.500     $ 3,610.13      360      1-Sep-29
5039045       HAWTHORN WOODS          IL      60047       SFD        7.250       6.500     $ 2,762.82      360      1-Aug-29
5039083       AUBURN                  CA      95602       SFD        7.000       6.500     $ 1,862.85      360      1-Aug-29
5039332       PHOENIX                 AZ      85048       SFD        7.625       6.500     $ 4,500.87      360      1-Sep-29
5039352       CHADDS FORD             PA      19317       SFD        7.125       6.500     $ 2,155.90      360      1-Aug-29
5039435       RINGOES                 NJ      08551       SFD        6.750       6.483     $ 2,014.55      360      1-Aug-29
5039597       MEDINA                  MN      55340       SFD        7.000       6.500     $ 4,257.94      360      1-Aug-29
5039686       WESTERLY                RI      02891       SFD        7.500       6.500     $ 1,815.52      360      1-Sep-29
5039694       MENOMONEE FALLS         WI      53051       SFD        6.750       6.483     $ 2,075.52      360      1-Aug-29
5039767       BARRINGTON              IL      60010       SFD        8.125       6.500     $ 1,963.54      360      1-Jul-29
5039831       MANSFIELD               MA      02048       SFD        7.375       6.500     $ 2,154.91      360      1-Sep-29
5039945       PRINCETON               NJ      08540       SFD        6.875       6.500     $ 2,791.95      360      1-Aug-29
5040009       CARY                    IL      60013       SFD        8.000       6.500     $ 1,901.92      360      1-Sep-29
5040039       HEATHROW                FL      32746       SFD        6.625       6.358     $ 3,841.87      360      1-Aug-29
5040069       NORCROSS                GA      30092       SFD        6.750       6.483     $ 1,880.94      360      1-Aug-29
5040160       LONG VALLEY             NJ      07853       SFD        7.250       6.500     $ 2,660.49      360      1-Aug-29
5040166       BLOOMFIELD HILLS        MI      48304       SFD        7.625       6.500     $ 1,981.83      360      1-Sep-29
5040204       RALEIGH                 NC      27614       SFD        6.625       6.358     $ 2,295.55      360      1-Jul-29
5040238       MEQUON                  WI      53092       SFD        7.625       6.500     $ 2,392.35      360      1-Sep-29
5040518       AUSTIN                  TX      78733       SFD        7.375       6.500     $ 4,099.85      360      1-Aug-29
5040804       DEXTER                  MI      48130       SFD        7.125       6.500     $ 1,852.73      360      1-Jul-29
5040806       MISSION VIEJO           CA      92692       SFD        7.125       6.500     $ 1,983.43      360      1-Aug-29
5040982       FOUNTAIN HILLS          AZ      85233       SFD        6.625       6.358     $ 2,433.19      360      1-Aug-29
5040989       WEST LINN               OR      97068       SFD        7.250       6.500     $ 2,009.01      360      1-Aug-29
5041153       LANDENBERG              PA      19350       SFD        7.500       6.500     $ 1,748.04      360      1-Sep-29
5041167       SAN PEDRO               CA      90732       SFD        8.125       6.500     $ 2,316.60      360      1-Sep-29
5042024       SCOTTSDALE              AZ      85255       SFD        6.750       6.483     $ 2,756.55      360      1-Sep-29
5042116       OAKLAND                 CA      94610       SFD        7.125       6.500     $ 3,072.16      360      1-Sep-29
5042293       SNELLVILLE              GA      30078       SFD        7.500       6.500     $ 1,802.34      360      1-Sep-29
5042328       GREAT FALLS             VA      22066       SFD        6.875       6.500     $ 4,926.97      360      1-Sep-29
5042481       BRIDGEWATER             NJ      08807       SFD        7.625       6.500     $ 3,652.22      360      1-Aug-29
5042618       NEW YORK                NY      10021       COP        7.250       6.500     $ 2,217.08      360      1-Aug-29
5042868       MARIETTA                GA      30068       SFD        7.750       6.500     $ 2,722.37      360      1-Sep-29
5042892       HOCKESSIN               DE      19707       SFD        7.875       6.500     $ 2,608.80      360      1-Aug-29
5042923       BELLEVUE                WA      98006       SFD        7.750       6.500     $ 2,661.48      360      1-Sep-29
5043165       SAN JOSE                CA      95120       SFD        7.375       6.500     $ 3,204.74      360      1-Sep-29
5043182       BRENTWOOD               TN      37027       SFD        6.875       6.500     $ 2,397.80      360      1-Aug-29
5043249       LIVERMORE               CA      94550       SFD        8.000       6.500     $ 2,237.99      360      1-Aug-29
5043281       WESTLAKE VILLAGE        CA      91361       SFD        6.750       6.483     $ 1,783.65      360      1-Aug-29
5043295       AVON                    CT      06001       SFD        7.875       6.500     $ 2,262.22      360      1-Sep-29
5043316       MAPLE GROVE             MN      55311       SFD        7.500       6.500     $ 2,064.09      360      1-Aug-29
5043424       OVERLAND PARK           KS      66223       SFD        7.375       6.500     $ 2,002.96      360      1-Sep-29
5043454       YORBA LINDA             CA      92886       SFD        7.000       6.500     $ 2,262.03      360      1-Aug-29
5043561       BROOKFIELD              WI      53005       SFD        7.500       6.500     $ 2,097.65      360      1-Aug-29
5043614       GLEN ELLYN              IL      60137       SFD        7.125       6.500     $ 1,845.99      360      1-Aug-29
5043728       SAN RAMON               CA      94583       SFD        6.875       6.500     $ 2,364.95      360      1-Aug-29
5043766       TRUMBULL                CT      06611       SFD        7.375       6.500     $ 2,787.92      360      1-Sep-29
5043950       HENDERSON               NV      89012       SFD        7.125       6.500     $ 1,758.41      360      1-Aug-29
5044202       BRIDGEWATER             NJ      08807       SFD        7.500       6.500     $ 1,698.47      360      1-Aug-29
5044278       WEST CHESTER            PA      19382       SFD        7.250       6.500     $ 2,957.92      360      1-Sep-29
5044418       SYKESVILLE              MD      21784       SFD        7.000       6.500     $ 1,995.58      360      1-Aug-29
5044431       LAKE BLUFF              IL      60044       SFD        6.750       6.483     $ 2,263.61      360      1-Aug-29
5044840       REDMOND                 WA      98053       SFD        7.625       6.500     $ 2,346.34      360      1-Aug-29
5045088       SAN RAMON               CA      94583       SFD        6.875       6.500     $ 3,979.35      360      1-Aug-29
5045106       MELROSE                 MA      02176       SFD        7.500       6.500     $ 1,823.56      360      1-Sep-29
5045327       RANDOLPH                NJ      07869       SFD        6.375       6.108     $ 2,495.48      360      1-Sep-29
5045330       BELLE MEAD              NJ      08502       SFD        7.125       6.500     $ 2,947.52      360      1-Aug-29
5045670       WEST LAKELAND           MN      55082       SFD        7.750       6.500     $ 2,034.62      360      1-Sep-29
5045709       MARLBOROUGH             MA      01752       SFD        7.375       6.500     $ 2,127.28      360      1-Aug-29
5045742       MILLBURN                NJ      07041       SFD        6.750       6.483     $ 2,225.99      360      1-Aug-29
5045838       RICHMOND                IL      60071       SFD        7.500       6.500     $ 2,132.61      360      1-Aug-29
5045859       WILDWOOD                MO      63005       SFD        7.500       6.500     $ 2,240.45      360      1-Aug-29
5045889       CASTRO VALLEY           CA      94552       SFD        7.250       6.500     $ 2,319.40      360      1-Aug-29
5045920       BOULDER                 CO      80304       SFD        7.500       6.500     $ 2,657.02      360      1-Aug-29
5046123       MORRISTOWN              NJ      07960       SFD        7.250       6.500     $ 2,728.71      360      1-Aug-29
5046133       LIBERTYVILLE            IL      60048       SFD        7.500       6.500     $ 2,293.43      360      1-Aug-29
5046213       BARRINGTON              IL      60010       SFD        6.750       6.483     $ 2,918.70      360      1-Aug-29
5046491       MASON                   OH      45040       SFD        7.250       6.500     $ 1,864.39      360      1-Aug-29
5046539       REDMOND                 WA      98053       SFD        8.000       6.500     $ 2,076.93      360      1-Sep-29
5046605       WESTON                  FL      33327       SFD        7.875       6.500     $ 2,791.52      360      1-Sep-29
5046751       SHELBY TOWNSHIP         MI      48315       SFD        7.875       6.500     $ 2,233.22      360      1-Aug-29
5046833       MEDFORD                 NJ      08055       SFD        7.250       6.500     $ 1,923.74      360      1-Aug-29
5046905       BROOKFIELD              WI      53045       SFD        6.750       6.483     $ 2,581.43      360      1-Aug-29
5047011       COLLEYVILLE             TX      76034       SFD        7.250       6.500     $ 1,838.47      360      1-Aug-29
5047172       BRIDGEWATER             NJ      08807       SFD        7.000       6.500     $ 1,729.25      360      1-Sep-29
5047209       ISSAQUAH                WA      98029       SFD        7.625       6.500     $ 3,029.36      360      1-Aug-29
5047248       Meridain township       MI      48864       SFD        6.750       6.483     $ 1,751.22      360      1-Sep-29
5047262       HARRISBURG              PA      17111       SFD        6.875       6.500     $ 2,199.40      360      1-Aug-29
5047277       MEDFIELD                MA      02153       SFD        7.250       6.500     $ 2,592.27      360      1-Sep-29
5047389       BIRMINGHAM              AL      35242       SFD        6.750       6.483     $ 1,816.08      360      1-Aug-29
5047406       BROOKFIELD              CT      06804       SFD        8.000       6.500     $ 2,201.30      360      1-Sep-29
5047460       PLEASANTON              CA      94566       SFD        7.375       6.500     $ 2,072.03      360      1-Aug-29
5047478       FORT GIBSON             OK      74434       SFD        7.000       6.500     $ 1,629.99      360      1-Aug-29
5047561       RICHMOND                VA      23233       SFD        7.375       6.500     $ 1,761.23      360      1-Sep-29
5047646       WELLESLEY               MA      02482       SFD        6.875       6.500     $ 2,299.26      360      1-Aug-29
5047651       SUWANEE                 GA      30024       SFD        6.750       6.483     $ 3,243.00      360      1-Aug-29
5047707       RIDGEFIELD              CT      06877       SFD        7.000       6.500     $ 2,860.81      360      1-Sep-29
5048143       AGOURA HILLS            CA      91301       SFD        8.000       6.500     $ 3,463.37      360      1-Sep-29
5048161       OLD LYME                CT      06371       SFD        6.875       6.500     $ 2,102.18      360      1-Aug-29
5048362       MENDON                  NY      14472       SFD        7.375       6.500     $ 1,804.39      360      1-Aug-29
5048455       SIMI VALLEY             CA      93065       SFD        7.500       6.500     $ 2,461.24      360      1-Sep-29
5048622       NEEDHAM                 MA      02492       SFD        6.875       6.500     $ 2,690.12      360      1-Aug-29
5048690       LAGUNA NIGUEL           CA      92677       SFD        7.125       6.500     $ 1,670.83      360      1-Jul-29
5048694       COLLEYVILLE             TX      76034       SFD        7.250       6.500     $ 2,112.02      360      1-Aug-29
5048764       SIMSBURY                CT      06089       SFD        7.000       6.500     $ 3,401.03      360      1-Aug-29
5048981       SAN JOSE                CA      95138       SFD        7.500       6.500     $ 3,915.61      360      1-Aug-29
5049019       SAN JOSE                CA      95101       SFD        7.875       6.500     $ 2,355.76      360      1-Sep-29
5049084       BRENTWOOD               TN      37027       SFD        6.625       6.358     $ 2,721.33      360      1-Aug-29
5049144       LAKE FOREST             IL      60045       SFD        7.375       6.500     $ 5,767.14      360      1-Sep-29
5049372       WESTWOOD                NJ      07675       SFD        7.500       6.500     $ 2,264.76      360      1-Aug-29
5049591       OCEAN RIDGE             FL      33435       SFD        7.125       6.500     $ 2,414.61      360      1-Sep-29
5049692       PONTE VEDRA BEACH       FL      32082       SFD        6.875       6.500     $ 1,988.55      360      1-Aug-29
5049695       PORTSMOUTH              NH      03801       SFD        7.250       6.500     $ 1,844.61      360      1-Aug-29
5049870       CHULUOTA                FL      32766       SFD        7.250       6.500     $ 2,203.43      360      1-Aug-29
5049890       MORGAN HILL             CA      95037       SFD        7.125       6.500     $ 2,872.74      360      1-Sep-29
5049915       SETAUKET                NY      11733       SFD        6.875       6.500     $ 1,887.03      360      1-Jul-29
5050126       CUPERTINO               CA      95014       SFD        7.500       6.500     $ 3,925.40      360      1-Aug-29
5050139       VIENNA                  VA      22181       SFD        7.625       6.500     $ 4,246.77      360      1-Sep-29
5050185       BROOKFIELD              CT      06804       SFD        7.000       6.500     $ 2,123.65      360      1-Aug-29
5050188       VALENCIA                CA      91355       SFD        7.250       6.500     $ 1,792.76      360      1-Aug-29
5050192       VIRGINIA BEACH          VA      23454       SFD        7.250       6.500     $ 2,394.44      360      1-Aug-29
5050259       SUGAR LAND              TX      77479       SFD        8.000       6.500     $ 1,819.37      360      1-Aug-29
5050293       ROCKAWAY BOROUGH        NJ      07866       SFD        7.250       6.500     $ 2,179.56      360      1-Sep-29
5050295       EL SEGUNDO              CA      90245       SFD        7.500       6.500     $ 3,230.38      360      1-Aug-29
5050405       HAYWARD                 CA      94542       SFD        7.500       6.500     $ 2,139.60      360      1-Aug-29
5050537       MONTE RIO               CA      95462       SFD        7.625       6.500     $ 1,811.96      360      1-Sep-29
5050580       CLEARWATER              FL      33767       SFD        7.375       6.500     $ 3,714.46      360      1-Aug-29
5050595       ALISO VIEJO             CA      92656       SFD        7.875       6.500     $ 2,096.25      360      1-Sep-29
5050641       HINGHAM                 MA      02043       SFD        7.125       6.500     $ 3,638.09      360      1-Sep-29
5050656       EAGAN                   MN      55123       SFD        7.375       6.500     $ 1,757.08      360      1-Sep-29
5050701       CUMMING                 GA      30040       SFD        6.875       6.500     $ 2,627.72      360      1-Aug-29
5050810       BUFFALO GROVE           IL      60089       SFD        7.125       6.500     $ 2,975.15      360      1-Sep-29
5051000       CASTLE ROCK             CO      80104       SFD        6.875       6.500     $ 1,806.56      360      1-Aug-29
5051009       SAN RAMON               CA      94583       SFD        8.125       6.500     $ 3,408.07      360      1-Sep-29
5051015       DANVILLE                CA      94506       SFD        7.125       6.500     $ 7,410.91      360      1-Sep-29
5051077       TULSA                   OK      74133       SFD        7.125       6.500     $ 1,670.15      360      1-Aug-29
5051109       UPPER SADDLE RIVER      NJ      07458       SFD        7.250       6.500     $ 3,161.51      240      1-Aug-19
5051114       SAN JOSE                CA      95119       SFD        7.375       6.500     $ 1,968.43      360      1-Aug-29
5051134       HOPEWELL JUNCTION       NY      12533       SFD        7.875       6.500     $ 1,957.69      360      1-Sep-29
5051160       CHELMSFORD              MA      01824       SFD        7.500       6.500     $ 2,423.83      360      1-Aug-29
5051188       ALPHARETTA              GA      30005       SFD        7.250       6.500     $ 2,101.11      360      1-Aug-29
5051253       SAN FRANCISCO           CA      94131       SFD        6.875       6.500     $ 2,596.52      360      1-Sep-29
5051295       MADISON                 CT      06443       SFD        7.750       6.500     $ 2,643.57      360      1-Aug-29
5051356       DUNWOODY                GA      30338       SFD        6.875       6.500     $ 3,010.70      360      1-Jul-29
5051485       ATLANTA                 GA      30319       SFD        7.375       6.500     $ 2,061.67      360      1-Aug-29
5051508       SOUTHBURY               CT      06488       SFD        7.250       6.500     $ 2,865.15      360      1-Aug-29
5051525       BRYN MAWR               PA      19010       SFD        6.875       6.500     $ 2,102.18      360      1-Aug-29
5051580       WAYNE                   PA      19087       SFD        7.750       6.500     $ 2,935.15      360      1-Aug-29
5051627       CLIFTON                 VA      20124       SFD        7.500       6.500     $ 2,823.08      360      1-Aug-29
5051628       VIENNA                  VA      22182       SFD        7.125       6.500     $ 2,021.16      360      1-Aug-29
5051655       MORAGA                  CA      94556       SFD        7.125       6.500     $ 3,368.60      360      1-Aug-29
5051688       CASTRO VALLEY           CA      94546       SFD        7.750       6.500     $ 2,127.39      360      1-Sep-29
5051734       SAN RAMON               CA      94583       SFD        7.250       6.500     $ 2,226.63      360      1-Aug-29
5051797       FRANKLIN                MA      02038       SFD        7.625       6.500     $ 1,942.26      360      1-Aug-29
5051860       THE WOODLANDS           TX      77382       SFD        7.125       6.500     $ 1,852.73      360      1-Aug-29
5051937       SOMERS                  NY      10589       SFD        7.625       6.500     $ 1,862.92      360      1-Sep-29
5052299       ACTON                   MA      01720       SFD        7.250       6.500     $ 2,046.53      360      1-Sep-29
5052308       DURHAM                  NC      27705       SFD        6.875       6.500     $ 2,627.72      360      1-Aug-29
5052351       ISSAQUAH                WA      98029       SFD        7.500       6.500     $ 3,179.68      360      1-Aug-29
5052362       PETALUMA                CA      94954       SFD        7.500       6.500     $ 1,913.06      360      1-Aug-29
5052495       SAN RAMON               CA      94583       SFD        7.375       6.500     $ 2,279.23      360      1-Aug-29
5052585       BARRINGTON              RI      02806       SFD        7.375       6.500     $ 2,099.66      360      1-Aug-29
5052790       MERCER ISLAND           WA      98040       SFD        7.375       6.500     $ 2,458.81      360      1-Aug-29
5053053       PHOENIX                 MD      21131       SFD        7.500       6.500     $ 2,970.97      360      1-Sep-29
5053194       OVERLAND PARK           KS      66221       SFD        7.750       6.500     $ 1,862.68      360      1-Aug-29
5053351       WALNUT CREEK            CA      94595       SFD        7.625       6.500     $ 2,338.56      360      1-Sep-29
5053426       PLEASANTON              CA      94588       SFD        7.750       6.500     $ 2,224.47      360      1-Aug-29
5053505       YORBA LINDA             CA      92887       SFD        7.250       6.500     $ 3,913.99      360      1-Sep-29
5053629       BASKING RIDGE           NJ      07920       SFD        7.250       6.500     $ 4,587.64      360      1-Sep-29
5053639       BENTLEYVILLE            OH      44022       SFD        7.000       6.500     $ 1,995.91      360      1-Aug-29
5053724       WALNUT CREEK            CA      94595       SFD        7.625       6.500     $ 1,946.44      360      1-Aug-29
5053762       SAINT DAVIDS            PA      19087       SFD        7.875       6.500     $ 1,997.57      360      1-Aug-29
5053828       WOODINVILLE             WA      98072       SFD        7.250       6.500     $ 2,578.63      360      1-Aug-29
5053906       SAN RAMON               CA      94583       SFD        7.500       6.500     $ 2,237.49      360      1-Aug-29
5054007       CENTER VALLEY           PA      18034       SFD        7.125       6.500     $ 2,688.14      360      1-Aug-29
5054018       BRIDGEWATER             NJ      08807       SFD        7.125       6.500     $ 2,358.02      360      1-Sep-29
5054056       CHARLOTTE               NC      28277       SFD        7.500       6.500     $ 2,097.65      360      1-Aug-29
5054176       HOLLAND                 PA      18966       SFD        7.125       6.500     $ 2,021.16      360      1-Aug-29
5054243       PEACHTREE CITY          GA      30269       SFD        6.500       6.233     $ 1,801.40      360      1-Aug-29
5054511       ROBBINSVILLE            NJ      08691       SFD        7.625       6.500     $ 2,126.22      360      1-Sep-29
5054546       GLEN ALLEN              VA      23059       SFD        7.500       6.500     $ 2,237.49      360      1-Sep-29
5054641       RENO                    NV      89503       SFD        8.000       6.500     $ 1,972.73      360      1-Aug-29
5054699       WAYNE                   NJ      07470       SFD        7.625       6.500     $ 2,734.92      360      1-Sep-29
5054706       FRAMINGHAM              MA      01702       SFD        7.125       6.500     $ 1,938.29      360      1-Aug-29
5054822       DANVILLE                CA      94526       SFD        7.125       6.500     $ 2,526.45      360      1-Aug-29
5054909       MOORPARK                CA      93021       SFD        7.750       6.500     $ 1,844.77      360      1-Aug-29
5055001       NEWTOWN                 CT      06470       SFD        8.125       6.500     $ 2,761.72      360      1-Aug-29
5055030       ROCKVILLE               MD      20853       SFD        7.500       6.500     $ 2,377.33      360      1-Aug-29
5055117       ALPHARETTA              GA      30004       SFD        7.500       6.500     $ 2,447.26      360      1-Aug-29
5055404       BLUE BELL               PA      19422       SFD        7.000       6.500     $ 2,792.94      360      1-Aug-29
5055442       SAN RAMON               CA      94583       SFD        7.500       6.500     $ 2,265.46      360      1-Sep-29
5055671       DULUTH                  GA      30097       SFD        7.625       6.500     $ 1,902.55      360      1-Sep-29
5055672       SUGAR LAND              TX      77479       SFD        7.625       6.500     $ 1,811.96      360      1-Sep-29
5055688       LAKE FOREST             IL      60045       SFD        7.750       6.500     $ 4,226.84      360      1-Aug-29
5055818       SAN RAMON               CA      94583       SFD        7.500       6.500     $ 2,796.86      360      1-Aug-29
5055838       STONY POINT             NY      10980       SFD        6.625       6.358     $ 1,759.26      360      1-Sep-29
5056094       CAMDEN                  ME      04843       SFD        7.375       6.500     $ 2,952.64      360      1-Aug-29
5056172       FLOWER MOUND            TX      75022       SFD        7.000       6.500     $ 2,262.03      360      1-Aug-29
5056269       PRIOR LAKE              MN      55372       SFD        7.500       6.500     $ 2,041.71      360      1-Aug-29
5056335       LYNNWOOD                WA      98036       SFD        8.375       6.500     $ 2,072.34      360      1-Sep-29
5056359       SAN JOSE                CA      95032       SFD        7.625       6.500     $ 3,369.10      360      1-Aug-29
5056360       SPRING                  TX      77379       SFD        7.875       6.500     $ 1,923.65      360      1-Aug-29
5056390       PLEASANTON              CA      94588       SFD        7.625       6.500     $ 2,180.01      360      1-Sep-29
5056392       TEWKSBURRY TOWNSHIP     NJ      07830       SFD        7.000       6.500     $ 2,847.50      360      1-Sep-29
5056446       SOUTHBURY               CT      06488       SFD        7.375       6.500     $ 2,058.22      360      1-Aug-29
5056576       MARLBORO                NJ      07746       SFD        7.250       6.500     $ 3,895.23      360      1-Aug-29
5056814       DANVILLE                CA      94526       SFD        7.375       6.500     $ 1,747.41      360      1-Aug-29
5056889       SAN JOSE                CA      95118       SFD        7.750       6.500     $ 3,539.80      360      1-Aug-29
5056956       WESTPORT                CT      06880       SFD        6.875       6.500     $ 4,434.27      360      1-Aug-29
5057012       UNION                   KY      41091       SFD        7.875       6.500     $ 2,189.35      360      1-Sep-29
5057052       PLANO                   TX      75025       SFD        7.500       6.500     $ 2,178.06      360      1-Aug-29
5057238       CARMEL                  IN      46032       SFD        7.500       6.500     $ 1,817.96      360      1-Aug-29
5057318       SHORT HILLS             NJ      07078       SFD        7.750       6.500     $ 2,379.21      360      1-Aug-29
5057359       MORGANVILLE             NJ      07751       SFD        7.750       6.500     $ 2,572.64      360      1-Sep-29
5057387       DANVILLE                CA      94526       SFD        7.875       6.500     $ 3,625.35      360      1-Sep-29
5057483       SAN JOSE                CA      95120       SFD        7.750       6.500     $ 5,790.05      360      1-Aug-29
5057510       PALM HARBOR             FL      34685       SFD        7.250       6.500     $ 2,018.56      360      1-Sep-29
5057564       HOOVER                  AL      35244       SFD        7.250       6.500     $ 2,015.84      360      1-Sep-29
5057581       CHERRY HILL             NJ      08003       SFD        7.000       6.500     $ 2,494.89      360      1-Sep-29
5057621       RIDGEFIELD              CT      06877       SFD        6.750       6.483     $ 2,189.02      360      1-Aug-29
5057725       LIVERMORE               CA      94550       SFD        8.125       6.500     $ 2,672.70      360      1-Sep-29
5058214       NORTH BARRINGTON        IL      60010       SFD        7.125       6.500     $ 4,471.81      360      1-Sep-29
5058236       STAMFORD                CT      06902       SFD        7.625       6.500     $ 3,425.73      360      1-Sep-29
5058561       IRVINE                  CA      92612       SFD        7.250       6.500     $ 2,196.61      360      1-Sep-29
5058612       PLYMOUTH                MN      55446       SFD        7.500       6.500     $ 2,643.04      360      1-Sep-29
5058637       BAINBRIDGE ISLAND       WA      98110       SFD        6.625       6.358     $ 1,903.65      360      1-Apr-29
5058646       SAN JOSE                CA      95120       SFD        7.750       6.500     $ 2,507.45      360      1-Aug-29
5058729       LINCOLNSHIRE            IL      60069       SFD        6.875       6.500     $ 1,750.72      360      1-Aug-29
5058868       ALPHARETTA              GA      30022       SFD        8.125       6.500     $ 2,833.37      360      1-Sep-29
5058965       ROSWELL                 GA      30075       SFD        7.750       6.500     $ 2,278.91      360      1-Sep-29
5058990       WESTLAKE VILLAGE        CA      91361       SFD        7.500       6.500     $ 2,315.80      360      1-Aug-29
5058999       HINSDALE                IL      60521       SFD        7.000       6.500     $ 2,162.24      360      1-Sep-29
5059152       BRADENTON               FL      34202       SFD        7.625       6.500     $ 2,689.62      360      1-Aug-29
5059202       CHARLOTTE               NC      28210       SFD        7.500       6.500     $ 1,852.92      360      1-Aug-29
5059212       WOODSTOCK               GA      30188       SFD        7.750       6.500     $ 2,075.81      360      1-Aug-29
5059368       RALEIGH                 NC      27614       SFD        7.750       6.500     $ 2,377.78      360      1-Sep-29
5059765       SAN JOSE                CA      95124       SFD        7.875       6.500     $ 2,138.96      360      1-Aug-29
5059799       AUSTIN                  TX      78730       SFD        6.875       6.500     $ 2,266.41      360      1-Aug-29
5059880       ENGLEWOOD               CO      80111       SFD        7.500       6.500     $ 2,461.24      360      1-Aug-29
5060004       NAPERVILLE              IL      60564       SFD        7.250       6.500     $ 2,148.86      360      1-Sep-29
5060013       LUMBERTON               NJ      08060       SFD        7.250       6.500     $ 1,717.38      360      1-Aug-29
5060138       WESTFIELD               NJ      07090       SFD        8.500       6.500     $ 3,321.71      360      1-Sep-29
5060145       OAKLAND                 CA      94605       SFD        7.500       6.500     $ 2,684.99      360      1-Sep-29
5060190       DANVILLE                CA      94506       SFD        7.250       6.500     $ 3,159.85      360      1-Sep-29
5060222       CINCINNATI              OH      45242       SFD        7.750       6.500     $ 3,725.35      360      1-Sep-29
5060332       SNOHOMISH               WA      98296       SFD        7.625       6.500     $ 1,909.28      360      1-Sep-29
5060334       MIDLOTHIAN              VA      23113       SFD        7.250       6.500     $ 2,592.27      360      1-Aug-29
5060394       PORTLAND                OR      97229       SFD        7.250       6.500     $ 1,964.67      360      1-Sep-29
5060609       WILBRAHAM               MA      01095       SFD        7.500       6.500     $ 1,901.87      360      1-Sep-29
5060813       SHELTON                 CT      06484       SFD        7.750       6.500     $ 2,401.78      360      1-Aug-29
5060924       SARATOGA                CA      95070       SFD        8.125       6.500     $ 4,826.24      360      1-Aug-29
5061061       MELBOURNE               FL      32935       PUD        7.250       6.500     $ 2,080.64      360      1-Sep-29
5061277       POWDER SPRINGS          GA      30127       SFD        7.500       6.500     $ 1,776.01      360      1-Sep-29
5061318       THOUSAND OAKS           CA      91320       SFD        7.875       6.500     $ 1,838.78      360      1-Aug-29
5061400       SANTA CLARITA           CA      91354       SFD        7.125       6.500     $ 2,526.45      360      1-Sep-29
5061463       WEST UNIVERSITY PLAC    TX      77005       SFD        7.125       6.500     $ 2,694.88      360      1-Sep-29
5061537       YORBA LINDA             CA      92887       SFD        7.750       6.500     $ 2,389.96      360      1-Sep-29
5061597       BETHANY                 CT      06524       SFD        7.500       6.500     $ 2,097.65      360      1-Sep-29
5061777       LAKE FOREST             IL      60045       SFD        7.250       6.500     $ 2,865.15      360      1-Aug-29
5061779       NEDERLAND               CO      80466       SFD        7.500       6.500     $ 1,922.84      360      1-Sep-29
5061945       CASTLE ROCK             CO      80104       SFD        7.250       6.500     $ 2,892.42      360      1-Aug-29
5061955       ASHBURN                 VA      20147       SFD        8.125       6.500     $ 2,193.71      360      1-Sep-29
5062267       EAGAN                   MN      55122       SFD        7.500       6.500     $ 2,261.26      360      1-Sep-29
5062284       ATLANTA                 GA      30305       SFD        7.375       6.500     $ 2,141.10      360      1-Sep-29
5062309       DANVILLE                CA      94506       SFD        7.000       6.500     $ 2,634.60      360      1-Aug-29
5062359       SHREWSBURY              MA      01545       SFD        7.875       6.500     $ 1,859.81      360      1-Aug-29
5062441       AUSTIN                  TX      78733       SFD        7.625       6.500     $ 3,522.34      360      1-Aug-29
5062504       CROTON ON HUDSON        NY      10520       SFD        7.000       6.500     $ 3,417.00      360      1-Sep-29
5062522       FAIRPORT                NY      14450       SFD        7.250       6.500     $ 2,498.82      360      1-Sep-29
5062566       PONTE VEDRA BEACH       FL      32082       SFD        7.000       6.500     $ 2,111.34      360      1-Aug-29
5062579       OMAHA                   NE      68116       SFD        7.625       6.500     $ 1,981.83      360      1-Aug-29
5062616       RICHLAND                MI      49083       SFD        7.000       6.500     $ 2,042.48      360      1-Aug-29
5062660       COLORADO SPRINGS        CO      80919       SFD        7.750       6.500     $ 2,080.47      360      1-Aug-29
5062701       RANDOLPH                NJ      07869       SFD        7.375       6.500     $ 2,065.12      360      1-Sep-29
5062737       ALAMO                   CA      94507       SFD        7.375       6.500     $ 2,831.77      360      1-Sep-29
5062783       MEDWAY                  MA      02053       SFD        6.625       6.358     $ 1,728.84      360      1-Sep-29
5062790       SAN JOSE                CA      95120       SFD        7.000       6.500     $ 3,326.52      360      1-Sep-29
5062824       OAKLAND                 CA      94611       SFD        7.500       6.500     $ 2,349.37      360      1-Sep-29
5062862       DANVILLE                CA      94526       SFD        7.500       6.500     $ 1,748.04      360      1-Aug-29
5062933       NEW MILFORD             CT      06776       SFD        7.250       6.500     $ 1,773.66      360      1-Sep-29
5062938       NEW YORK                NY      10069       HCO        7.750       6.500     $ 2,772.52      360      1-Sep-29
5062960       RANCHO SANTA MARGARI    CA      92688       LCO        7.875       6.500     $ 1,990.68      360      1-Sep-29
5063044       LITTLETON               CO      80123       SFD        7.250       6.500     $ 2,012.43      360      1-Aug-29
5063256       COTO DE CAZA            CA      92679       SFD        7.500       6.500     $ 4,544.90      360      1-Sep-29
5063308       OAKLAND                 CA      94611       SFD        7.500       6.500     $ 2,657.02      360      1-Aug-29
5063411       MOUNTAIN VIEW           CA      94043       LCO        8.000       6.500     $ 2,179.29      360      1-Sep-29
5063605       GAMBRILLS               MD      21054       SFD        7.250       6.500     $ 2,019.24      360      1-Aug-29
5063633       SOUTHLAKE               TX      76092       SFD        7.750       6.500     $ 2,177.90      360      1-Aug-29
5063679       ELM GROVE               WI      53122       SFD        7.500       6.500     $ 1,957.81      360      1-Aug-29
5063803       EDINA                   MN      55424       SFD        7.125       6.500     $ 3,287.75      360      1-Aug-29
5063885       WALNUT CREEK            CA      94595       SFD        8.125       6.500     $ 1,967.99      360      1-Aug-29
5063897       GLASTONBURY             CT      06033       SFD        7.500       6.500     $ 2,433.27      360      1-Sep-29
5064406       BARRINGTON              IL      60010       SFD        7.125       6.500     $ 2,021.16      360      1-Aug-29
5064449       DALLAS                  TX      75248       SFD        8.125       6.500     $ 1,900.80      360      1-Sep-29
5064465       SHARON                  MA      02067       SFD        7.875       6.500     $ 1,797.13      360      1-Sep-29
5064517       HAWTHORN WOODS          IL      60047       SFD        7.375       6.500     $ 1,830.29      360      1-Sep-29
5064574       DANVILLE                CA      94506       SFD        6.750       6.483     $ 6,038.45      360      1-Aug-29
5064577       PLEASANT HILL           CA      94523       SFD        7.625       6.500     $ 2,477.28      360      1-Sep-29
5064892       SUGAR LAND              TX      77479       SFD        7.250       6.500     $ 2,246.41      360      1-Aug-29
5065053       BERKELEY                CA      94707       SFD        7.500       6.500     $ 2,447.26      360      1-Aug-29
5065155       HOUSTON                 TX      77005       SFD        7.875       6.500     $ 2,186.09      360      1-Aug-29
5065224       KALAMAZOO               MI      49009       SFD        7.250       6.500     $ 1,855.52      360      1-Aug-29
5065277       SHREWSBURY              MA      01545       SFD        7.250       6.500     $ 2,248.46      360      1-Aug-29
5065283       DENVER                  CO      80220       SFD        7.250       6.500     $ 2,071.09      360      1-Aug-29
5065334       KATY                    TX      77450       SFD        7.500       6.500     $ 1,889.28      360      1-Aug-29
5065417       PARKLAND                FL      33076       SFD        7.625       6.500     $ 1,981.83      360      1-Sep-29
5065653       DANVILLE                CA      94526       PUD        7.625       6.500     $ 2,123.39      360      1-Sep-29
5066050       SAN DIEGO               CA      92130       SFD        7.625       6.500     $ 2,831.18      360      1-Aug-29
5066373       MARIETTA                GA      30062       SFD        7.250       6.500     $ 1,910.10      360      1-Sep-29
5066463       COSTA MESA              CA      92626       SFD        7.875       6.500     $ 2,505.84      360      1-Sep-29
5066535       PLEASANTON              CA      94566       SFD        8.125       6.500     $ 3,632.67      360      1-Aug-29
5066540       STEWARTSVILLE           NJ      08886       SFD        7.750       6.500     $ 2,181.30      360      1-Sep-29
5066788       HOPEWELL                NJ      08525       SFD        7.250       6.500     $ 1,848.70      360      1-Sep-29
5066849       STILWELL                KS      66085       SFD        7.375       6.500     $ 2,002.96      360      1-Sep-29
5066866       HENDERSON               NV      89052       SFD        8.125       6.500     $ 2,160.77      360      1-Sep-29
5066886       GLEN ALLEN              VA      23059       SFD        7.500       6.500     $ 1,915.85      360      1-Aug-29
5066910       LAKE FOREST             IL      60045       SFD        7.250       6.500     $ 2,046.53      360      1-Aug-29
5066919       MASON                   OH      45040       SFD        7.625       6.500     $ 1,875.66      360      1-Aug-29
5066952       HENDERSON               NV      89012       SFD        8.125       6.500     $ 2,017.37      360      1-Aug-29
5066988       MARIETTA                GA      30067       SFD        7.500       6.500     $ 1,887.88      360      1-Aug-29
5066994       GREAT FALLS             VA      22066       SFD        7.250       6.500     $ 2,046.53      360      1-Aug-29
5067016       CHESHIRE                CT      06410       SFD        8.125       6.500     $ 2,108.70      360      1-Sep-29
5067017       SOUTHLAKE               TX      76092       SFD        7.375       6.500     $ 2,928.47      360      1-Aug-29
5067307       FLOWER MOUND            TX      75028       SFD        7.750       6.500     $ 2,348.29      360      1-Sep-29
5067347       PRINCETON TOWNSHIP      NJ      08540       SFD        7.250       6.500     $ 3,110.73      360      1-Sep-29
5067455       MIAMI                   FL      33133       SFD        7.750       6.500     $ 2,031.03      360      1-Aug-29
5067822       OLYMPIA                 WA      98501       SFD        8.000       6.500     $ 2,091.23      360      1-Sep-29
5067920       THOUSAND OAKS           CA      91360       SFD        7.375       6.500     $ 1,761.23      360      1-Aug-29
5068017       COLORADO SPRINGS        CO      80919       SFD        8.125       6.500     $ 2,372.28      360      1-Sep-29
5068173       CHATHAM                 NJ      07928       SFD        7.500       6.500     $ 3,020.61      360      1-Sep-29
5068197       ALISO VIEJO             CA      92656       LCO        7.875       6.500     $ 1,939.59      360      1-Aug-29
5068345       SAINT JOSEPH            MI      49085       SFD        7.500       6.500     $ 2,080.87      360      1-Sep-29
5068621       WALNUT CREEK            CA      94598       SFD        7.625       6.500     $ 1,840.27      360      1-Sep-29
5068666       SAN JOSE                CA      95120       SFD        7.875       6.500     $ 4,495.44      360      1-Sep-29
5068817       WOODINVILLE             WA      98072       SFD        7.875       6.500     $ 2,138.60      360      1-Sep-29
5069203       ALEXANDRIA              VA      22308       SFD        7.250       6.500     $ 1,933.97      360      1-Sep-29
5069446       ARLINGTON               VA      22207       SFD        7.375       6.500     $ 2,428.42      360      1-Aug-29
5069719       BAYVIEW                 TX      78566       SFD        7.875       6.500     $ 2,175.21      360      1-Aug-29
5069806       WESTERVILLE             OH      43082       SFD        7.500       6.500     $ 2,332.03      360      1-Sep-29
5069840       LAGUNA BEACH            CA      92651       SFD        7.250       6.500     $ 3,547.32      360      1-Aug-29
5070079       RIDGEFIELD              CT      06877       SFD        6.750       6.483     $ 2,283.07      360      1-Sep-29
5070109       THOUSAND OAKS           CA      91360       SFD        7.500       6.500     $ 2,228.75      360      1-Aug-29
5070287       MISSION VIEJO           CA      92692       SFD        7.500       6.500     $ 2,923.13      360      1-Sep-29
5070371       SHARON                  MA      02067       SFD        7.375       6.500     $ 1,899.36      360      1-Jul-28
5070421       SPRINGFIELD             MO      65809       SFD        7.250       6.500     $ 1,970.13      360      1-Sep-29
5070503       BLOOMINGTON             IL      61701       SFD        7.875       6.500     $ 1,993.95      360      1-Sep-29
5070549       COTTAGE GROVE           MN      55016       SFD        7.625       6.500     $ 2,151.70      360      1-Sep-29
5070683       COTO DE CAZA            CA      92679       SFD        7.250       6.500     $ 2,346.69      360      1-Sep-29
5070934       IRVING                  TX      75038       PUD        7.625       6.500     $ 2,242.86      360      1-Aug-29
5071092       EDINA                   MN      55439       SFD        7.375       6.500     $ 4,282.19      360      1-Aug-29
5071131       JAMISON                 PA      18929       SFD        7.250       6.500     $ 2,074.84      360      1-Aug-29
5071229       OVERLAND PARK           KS      66223       SFD        8.000       6.500     $ 2,246.43      360      1-Sep-29
5071370       FRISCO                  TX      75034       SFD        7.500       6.500     $ 3,076.55      360      1-Aug-29
5071427       DOVE CANYON             CA      92679       SFD        7.750       6.500     $ 2,149.24      360      1-Sep-29
5071458       SEBASTOPOL              CA      95472       SFD        7.375       6.500     $ 2,077.56      360      1-Sep-29
5071531       THE WOODLANDS           TX      77381       SFD        7.375       6.500     $ 2,640.46      360      1-Sep-29
5071571       ALPHARETTA              GA      30005       SFD        8.375       6.500     $ 2,280.22      360      1-Sep-29
5071738       ALPHARETTA              GA      30004       SFD        7.500       6.500     $ 2,405.30      360      1-Sep-29
5072154       LONGMEADOW              MA      01106       SFD        7.750       6.500     $ 2,096.23      360      1-Sep-29
5072190       IRVINE                  CA      92612       LCO        7.250       6.500     $ 1,841.88      360      1-Sep-29
5072385       LAS VEGAS               NV      89134       SFD        7.875       6.500     $ 3,552.85      360      1-Aug-29
5072389       SPARTA                  NJ      07871       SFD        7.625       6.500     $ 2,259.28      360      1-Sep-29
5072398       BLOOMINGTON             IL      61704       SFD        7.750       6.500     $ 2,321.18      360      1-Sep-29
5072599       PALO ALTO               CA      94306       SFD        7.750       6.500     $ 4,656.68      360      1-Aug-29
5072630       SAN JOSE                CA      95131       LCO        7.750       6.500     $ 1,765.24      360      1-Sep-29
5072931       WEST HARTFORD           CT      06107       SFD        7.750       6.500     $ 2,063.27      360      1-Sep-29
5073012       CLAYTON                 CA      94517       SFD        7.625       6.500     $ 2,335.72      360      1-Sep-29
5073187       SALINE                  MI      48176       LCO        8.000       6.500     $ 1,916.96      360      1-Sep-29
5073258       DUNNWOODY               GA      30350       SFD        7.750       6.500     $ 2,371.33      360      1-Aug-29
5073654       SAN FRANCISCO           CA      94127       SFD        7.625       6.500     $ 2,031.37      360      1-Sep-29
5073786       NORWALK                 CT      06850       SFD        7.750       6.500     $ 2,134.91      360      1-Sep-29
5073810       RANDOLPH TOWNSHIP       NJ      07869       SFD        7.125       6.500     $ 2,580.35      360      1-Sep-29
5074141       WALNUT CREEK            CA      94598       SFD        7.125       6.500     $ 1,859.47      360      1-Aug-29
5074416       MAPLE VALLEY            WA      98038       SFD        7.500       6.500     $ 4,469.38      360      1-Sep-29
5074456       DANVILLE                CA      94506       SFD        7.500       6.500     $ 2,726.94      360      1-Sep-29
5074563       NEW CITY                NY      10956       SFD        7.250       6.500     $ 2,558.17      360      1-Aug-29
5074572       EVANSVILLE              IN      47715       SFD        7.500       6.500     $ 2,447.26      360      1-Sep-29
5074581       WELLESLEY               MA      02181       SFD        6.375       6.108     $ 2,745.03      360      1-May-29
5074722       SEATTLE                 WA      98115       SFD        7.000       6.500     $ 2,065.10      360      1-Jul-29
5074764       LITTLE SILVER           NJ      07739       SFD        7.750       6.500     $ 2,375.27      360      1-Sep-29
5074806       CANYON LAKE             CA      92587       SFD        7.875       6.500     $ 3,154.06      360      1-Sep-29
5074873       ALLENTOWN               PA      18104       SFD        7.375       6.500     $ 2,707.45      360      1-Sep-29
5074891       HUNTINGTON BEACH        CA      92648       SFD        7.125       6.500     $ 3,018.26      360      1-Sep-29
5074896       GREENSBORO              NC      27407       SFD        7.375       6.500     $ 1,795.76      360      1-Aug-29
5075072       ROSWELL                 GA      30076       SFD        7.250       6.500     $ 3,028.87      360      1-Sep-29
5075185       MERCER ISLAND           WA      98040       SFD        7.750       6.500     $ 2,865.65      360      1-Sep-29
5075317       SIMI VALLEY             CA      93065       SFD        7.750       6.500     $ 2,292.52      360      1-Aug-29
5075747       SANDY HOOK              CT      06482       SFD        7.125       6.500     $ 2,048.11      360      1-Sep-29
5075772       ANAHEIM                 CA      92807       SFD        7.625       6.500     $ 2,229.56      360      1-Sep-29
5075867       BROOKLINE               MA      02146       LCO        7.375       6.500     $ 2,935.37      360      1-Sep-29
5076044       EAST LYME               CT      06333       SFD        6.625       6.358     $ 2,458.79      360      1-Jun-29
5076116       LEAWOOD                 KS      66224       SFD        8.000       6.500     $ 1,829.83      360      1-Sep-29
5076147       RANCHO STA MARGARITA    CA      92688       SFD        8.500       6.500     $ 2,279.83      360      1-Aug-29
5076204       KENILWORTH              IL      60043       SFD        7.750       6.500     $ 2,471.63      360      1-Sep-29
5076426       NORTHVILLE              MI      48167       SFD        6.750       6.483     $ 1,816.08      360      1-Sep-29
5076473       MADISON                 MS      39110       SFD        6.750       6.483     $ 1,621.50      360      1-Aug-29
5077232       ALPHARETTA              GA      30005       SFD        7.375       6.500     $ 2,088.61      360      1-Sep-29
5077285       THORNTON                PA      19373       SFD        6.500       6.233     $ 1,648.44      360      1-Aug-29
5077619       MEQUON                  WI      53092       SFD        7.625       6.500     $ 2,617.07      360      1-Sep-29
5077656       SHAKER HEIGHTS          OH      44122       SFD        7.625       6.500     $ 3,255.86      360      1-Sep-29
5077754       LAKE FOREST             CA      92630       SFD        8.000       6.500     $ 2,201.30      360      1-Aug-29
5078020       ISSAQUAH                WA      98029       SFD        7.250       6.500     $ 2,358.97      360      1-Sep-29
5078450       ANNAPOLIS               MD      21401       SFD        7.500       6.500     $ 2,691.98      360      1-Sep-29
5078725       COLUMBIA                MD      21044       SFD        7.750       6.500     $ 2,292.52      360      1-Sep-29
5078745       NAPERVILLE              IL      60564       SFD        7.125       6.500     $ 1,758.41      360      1-Sep-29
5078818       PIPERSVILLE             PA      18947       SFD        6.625       6.358     $ 1,728.20      360      1-Jun-29
5079091       INDIANAPOLIS            IN      46236       SFD        7.375       6.500     $ 1,707.35      360      1-Sep-29
5079324       IJAMSVILLE              MD      21754       SFD        7.875       6.500     $ 1,812.68      360      1-Sep-29
5079329       SAN JUAN CAPISTRANO     CA      92675       SFD        7.500       6.500     $ 3,209.40      360      1-Sep-29
5079416       HOUSTON                 TX      77024       SFD        8.125       6.500     $ 4,634.67      360      1-Sep-29
5081153       LAFAYETTE               CA      94549       SFD        7.500       6.500     $ 2,342.37      360      1-Sep-29
5081771       ARLINGTON               VA      22207       SFD        7.750       6.500     $ 2,349.84      360      1-Sep-29
5081823       LIMA                    OH      45805       SFD        7.625       6.500     $ 2,038.45      360      1-Sep-29
5082825       BERKELEY HEIGHTS        NJ      07922       SFD        7.750       6.500     $ 1,816.83      360      1-Sep-29
5082948       SUGAR LAND              TX      77479       SFD        7.250       6.500     $ 2,558.17      360      1-Sep-29
5083089       CROTON ON HUDSON        NY      10520       SFD        8.500       6.500     $ 2,197.56      360      1-Sep-29
5083535       CHICAGO                 IL      60614       LCO        7.250       6.500     $ 1,841.88      360      1-Sep-29
5084778       POTOMAC                 MD      20854       SFD        7.500       6.500     $ 2,447.26      360      1-Sep-29
5085369       WEST HAVEN              CT      06516       SFD        8.000       6.500     $ 2,600.47      360      1-Sep-29
5085614       GERMANTOWN              TN      38138       SFD        7.750       6.500     $ 2,385.66      360      1-Sep-29
5088195       THE WOODLANDS           TX      77382       SFD        8.125       6.500     $ 1,836.94      360      1-Sep-29



</TABLE>
<TABLE>
NASCOR
NMI / 1999-23  Exhibit F-2
30 YEAR FIXED RATE NON RELOCATION  LOANS

(Continued)
<CAPTION>


(i)                 (ix)          (x)         (xi)          (xii)    (xiii)        (xiv)       (xv)          (xvI)
- -----          ---------------   -----     ---------      --------  --------    -----------  ----------   ----------
                  CUT-OFF
MORTGAGE            DATE                                   MORTGAGE                T.O.P.      MASTER         FIXED
LOAN             PRINCIPAL                                INSURANCE   SERVICE     MORTGAGE     SERVICE      RETAINED
NUMBER            BALANCE         LTV       SUBSIDY          CODE      FEE         LOAN         FEE          YIELD
- --------       ---------------   ------     ---------     --------   --------    ----------- -----------   ---------

<S>        <C>                  <C>        <C>             <C>         <C>       <C>          <C>           <C>
4766436       $     264,568.15     80.00                                0.25                     0.017         0.000
4766545       $     331,276.18     80.00                                0.25                     0.017         0.000
4774135       $     284,164.00     78.86                                0.25                     0.017         0.000
4793538       $     510,367.90     80.00                                0.25                     0.017         0.000
4806847       $     359,569.14     80.00                                0.25                     0.017         0.108
4809997       $     295,280.70     79.99                                0.25                     0.017         0.733
4833189       $     245,057.17     90.00                      11        0.25                     0.017         0.358
4838480       $     352,800.00     90.00                                0.25                     0.017         1.108
4847682       $     507,551.80     80.00                                0.25                     0.017         0.000
4847840       $     286,626.92     89.99       GD 3YR                   0.25                     0.017         0.108
4853470       $     324,000.00     85.26                                0.25                     0.017         0.358
4862213       $     287,036.81     78.70                                0.25                     0.017         0.733
4864019       $     334,757.54     79.17                                0.25                     0.017         0.858
4870297       $     543,200.00     80.00                                0.25                     0.017         0.983
4882153       $     281,567.24     79.99       GD 4YR                   0.25                     0.017         0.000
4884372       $     399,823.45     80.00                                0.25                     0.017         0.233
4900637       $     398,541.76     89.49       GD 4YR                   0.25                     0.017         0.000
4902501       $     532,350.00     80.00       GD 3YR                   0.25                     0.017         0.233
4909491       $     351,397.19     80.00       GD 3YR                   0.25                     0.017         0.000
4926293       $     359,704.91     78.26                                0.25                     0.017         0.233
4926990       $     560,000.00     80.00                                0.25                     0.017         0.358
4927341       $     291,333.63     89.99                                0.25                     0.017         0.733
4928431       $     334,104.97     80.00       GD 3YR                   0.25                     0.017         0.000
4930241       $     126,325.55     95.00                      33        0.25                     0.017         0.000
4934557       $     340,000.00     78.39                                0.25                     0.017         0.233
4934962       $     308,276.71     79.99                                0.25                     0.017         0.858
4939737       $     265,000.00     49.59                                0.25                     0.017         0.000
4940322       $     458,686.71     80.00                                0.25                     0.017         0.608
4940853       $     288,469.83     90.00                                0.25                     0.017         0.733
4940887       $     358,113.89     76.11                                0.25                     0.017         0.000
4943361       $     287,205.27     89.72                                0.25                     0.017         0.733
4943534       $     305,723.37     84.77                      17        0.25                     0.017         0.000
4944592       $     504,743.29     80.00                                0.25                     0.017         0.000
4944985       $     591,038.59     84.99                                0.25                     0.017         0.233
4945963       $     262,240.00     90.00                                0.25                     0.017         0.108
4948455       $     291,374.08     80.00                                0.25                     0.017         0.358
4949975       $     419,274.73     80.00                                0.25                     0.017         0.000
4951187       $     313,748.90     74.23                                0.25                     0.017         0.358
4952086       $     513,383.45     85.00                                0.25                     0.017         0.108
4952218       $     320,300.00     89.97                                0.25                     0.017         0.358
4952406       $     272,082.24     89.99                                0.25                     0.017         0.358
4955356       $     432,758.42     89.98                                0.25                     0.017         0.000
4957243       $     319,737.70     79.21                                0.25                     0.017         0.233
4960056       $     250,550.00     94.99                      17        0.25                     0.017         0.000
4961018       $     389,933.07     83.91                      11        0.25                     0.017         0.000
4964889       $     958,434.70     77.85       GD 5YR                   0.25                     0.017         0.000
4965113       $     291,458.38     90.00                                0.25                     0.017         0.483
4966714       $     358,144.25     90.00                      17        0.25                     0.017         0.000
4967391       $     274,785.47     72.56                                0.25                     0.017         0.483
4968748       $     273,300.00     87.78                      06        0.25                     0.017         0.108
4969083       $     324,151.37     89.54                      06        0.25                     0.017         0.108
4970858       $     384,318.77     70.00       GD 5YR                   0.25                     0.017         0.000
4972141       $     598,889.13     80.00       GD 2YR                   0.25                     0.017         0.108
4973859       $     356,300.00     80.00       GD 3YR                   0.25                     0.017         0.483
4974134       $     282,756.34     75.07       GD 5YR                   0.25                     0.017         0.000
4974638       $     352,435.00     80.00                                0.25                     0.017         0.358
4974917       $     289,750.00     95.00       GD 3YR                   0.25                     0.017         0.983
4976110       $     477,200.00     80.00       GD 3YR                   0.25                     0.017         0.000
4976489       $     355,161.81     89.99                                0.25                     0.017         0.483
4977137       $     305,811.00     80.00       GD 2YR                   0.25                     0.017         0.733
4978498       $     764,372.93     74.63                                0.25                     0.017         0.233
4978543       $     255,900.00     79.99                                0.25                     0.017         0.733
4979072       $     390,887.32     90.00                                0.25                     0.017         0.483
4979518       $     350,000.00     66.40       GD 3YR                   0.25                     0.017         0.108
4980529       $     254,805.96     85.00                                0.25                     0.017         0.608
4980915       $     249,219.49     94.99                                0.25                     0.017         0.858
4982485       $     600,000.00     79.47       GD 5YR                   0.25                     0.017         0.000
4983873       $     244,578.69     80.00                                0.25                     0.017         0.000
4984926       $     357,396.74     89.75                                0.25                     0.017         0.108
4986492       $     393,942.66     85.00                      17        0.25                     0.017         0.233
4986651       $     256,860.00     80.00                                0.25                     0.017         1.233
4986821       $     395,734.29     80.00                                0.25                     0.017         1.233
4989869       $     334,900.00     80.00                                0.25                     0.017         0.358
4990193       $     264,549.54     64.25                                0.25                     0.017         0.233
4990345       $     649,505.40     79.27                                0.25                     0.017         0.608
4990416       $     309,764.11     68.89                                0.25                     0.017         0.608
4990660       $     294,786.48     86.26                                0.25                     0.017         0.858
4990691       $     536,278.81     80.00                                0.25                     0.017         0.108
4990772       $     386,740.33     90.00                                0.25                     0.017         1.233
4990799       $     386,066.01     90.00       GD 5YR                   0.25                     0.017         0.358
4990837       $     440,000.00     80.00                                0.25                     0.017         0.000
4991197       $     389,756.54     90.00       GD 7YR                   0.25                     0.017         0.233
4991465       $     385,560.52     89.99                                0.25                     0.017         0.608
4991521       $     446,938.23     85.40                      33        0.25                     0.017         0.483
4991535       $     474,851.23     85.00                                0.25                     0.017         0.358
4991742       $     648,468.01     66.22                                0.25                     0.017         0.233
4991932       $     259,816.49     77.04                                0.25                     0.017         0.983
4992577       $     349,726.96     66.88                                0.25                     0.017         0.483
4993141       $     348,467.24     67.77                                0.25                     0.017         0.608
4993402       $     519,563.14     80.00                                0.25                     0.017         0.108
4993684       $     304,973.49     80.00                                0.25                     0.017         0.733
4994282       $     379,758.35     90.00                                0.25                     0.017         0.233
4994752       $     393,324.92     95.00                                0.25                     0.017         0.483
4995359       $     262,800.00     90.00                                0.25                     0.017         0.983
4995615       $     279,781.57     79.11                                0.25                     0.017         0.483
4995629       $     278,127.40     95.00                                0.25                     0.017         0.358
4996002       $     624,470.83     67.20                                0.25                     0.017         0.233
4996083       $     246,267.09     92.13                                0.25                     0.017         0.733
4996449       $     349,200.00     69.71                                0.25                     0.017         0.000
4996777       $     469,605.14     65.78                                0.25                     0.017         0.108
4996897       $     361,653.94     80.00                                0.25                     0.017         0.000
4996951       $     242,368.79     90.00                                0.25                     0.017         0.000
4997277       $     355,204.00     80.00       GD 3YR                   0.25                     0.017         0.608
4998391       $     361,390.00     88.02                                0.25                     0.017         0.108
4998619       $     518,074.98     79.99                                0.25                     0.017         0.233
4999662       $     990,716.98     75.00                                0.25                     0.017         0.108
4999809       $     439,000.00     62.71                                0.25                     0.017         0.358
5000466       $     343,420.33     80.00                                0.25                     0.017         0.108
5001290       $     352,083.07     88.25       GD 5YR                   0.25                     0.017         0.000
5002219       $     289,795.32     93.85                                0.25                     0.017         0.983
5002390       $     384,162.66     95.00                                0.25                     0.017         0.608
5002547       $     276,917.07     95.00       GD 3YR                   0.25                     0.017         1.108
5002735       $     496,000.00     80.00                                0.25                     0.017         0.483
5004473       $     255,000.00     76.58                                0.25                     0.017         0.358
5004497       $     499,115.30     66.84                                0.25                     0.017         0.000
5004904       $     535,038.51     80.00                                0.25                     0.017         0.000
5005928       $     466,731.35     85.00       GD 4YR                   0.25                     0.017         0.233
5006247       $     599,444.28     54.55                                0.25                     0.017         0.000
5006426       $     455,635.34     81.43                                0.25                     0.017         0.358
5006466       $     383,395.16     90.00                                0.25                     0.017         0.483
5006475       $     643,759.77     75.00                                0.25                     0.017         0.608
5006678       $     495,926.57     85.00                      17        0.25                     0.017         0.000
5006761       $     274,350.00     76.31                                0.25                     0.017         0.000
5007036       $     285,000.00     52.05                                0.25                     0.017         0.000
5007266       $     460,000.00     80.00                                0.25                     0.017         0.108
5007472       $     294,252.22     75.64                                0.25                     0.017         0.108
5007568       $     489,567.68     76.56                                0.25                     0.017         0.000
5008381       $     350,000.00     76.25                                0.25                     0.017         0.233
5009026       $     368,630.00     89.88                                0.25                     0.017         0.483
5009815       $     299,747.96     66.37                                0.25                     0.017         0.108
5010100       $     398,173.34     79.99       GD 5YR                   0.25                     0.017         0.233
5011111       $     391,645.62     80.00       GD 3YR                   0.25                     0.017         0.000
5011255       $     313,800.00     79.99                                0.25                     0.017         0.108
5011514       $     279,740.66     73.68                                0.25                     0.017         0.000
5011537       $     299,741.70     69.77                                0.25                     0.017         0.000
5011555       $     301,508.69     85.00                      06        0.25                     0.017         0.358
5011807       $     396,647.95     85.00                      17        0.25                     0.017         0.608
5012262       $     255,500.00     94.98                                0.25                     0.017         0.733
5012322       $     297,000.00     89.98                      11        0.25                     0.017         0.858
5012479       $     354,878.89     80.00                                0.25                     0.017         0.000
5012520       $     377,246.69     90.00                      01        0.25                     0.017         0.000
5012875       $     439,121.62     80.00                                0.25                     0.017         0.000
5013003       $     399,358.34     89.84       GD 5YR                   0.25                     0.017         0.358
5013557       $     358,840.09     90.00                                0.25                     0.017         0.858
5013612       $     298,879.67     50.93                                0.25                     0.017         0.000
5014227       $     437,666.71     77.11                                0.25                     0.017         0.608
5014341       $     304,200.00     90.00                                0.25                     0.017         0.983
5014872       $     330,300.00     90.00                                0.25                     0.017         0.000
5014896       $     289,300.00     79.99                                0.25                     0.017         0.733
5015004       $     674,473.44     55.33       GD 5YR                   0.25                     0.017         0.483
5015350       $     344,717.20     64.49                                0.25                     0.017         0.233
5015421       $     255,705.28     79.99                                0.25                     0.017         0.608
5015710       $     386,302.00     79.44                                0.25                     0.017         0.358
5015773       $     251,803.41     90.00                                0.25                     0.017         0.483
5015780       $     262,799.87     75.36       GD 7YR                   0.25                     0.017         0.608
5016808       $     424,283.85     83.84       GD 3YR         17        0.25                     0.017         0.108
5016968       $     350,000.00     71.43                                0.25                     0.017         0.000
5017039       $     488,663.87     83.05                      17        0.25                     0.017         0.000
5017197       $     294,775.52     73.20                                0.25                     0.017         0.608
5017230       $     577,637.70     79.99                                0.25                     0.017         0.358
5017462       $     334,407.23     78.84                                0.25                     0.017         0.000
5017492       $     296,000.00     66.00                                0.25                     0.017         0.000
5017556       $     468,384.32     75.00                                0.25                     0.017         0.483
5017760       $     360,987.00     80.00                                0.25                     0.017         0.858
5018487       $     349,705.95     49.30                                0.25                     0.017         0.108
5018600       $     317,177.64     90.00                                0.25                     0.017         0.233
5018774       $     294,300.00     90.00                                0.25                     0.017         0.233
5018795       $     329,722.76     86.86       GD 3YR                   0.25                     0.017         0.108
5018995       $     251,750.00     95.00                      06        0.25                     0.017         0.983
5019184       $     359,704.91     75.00                                0.25                     0.017         0.233
5019210       $     536,490.46     49.95                                0.25                     0.017         0.000
5019555       $     288,701.18     90.00                                0.25                     0.017         1.108
5019760       $     674,823.16     80.00                                0.25                     0.017         0.483
5019770       $     339,714.36     61.82                                0.25                     0.017         0.108
5019772       $     263,783.60     67.23                                0.25                     0.017         0.233
5020170       $     267,769.25     80.00       GD 3YR                   0.25                     0.017         0.000
5021013       $     450,000.00     62.07                                0.25                     0.017         0.608
5021022       $     296,744.29     90.00                      06        0.25                     0.017         0.000
5021025       $     591,725.30     83.49                                0.25                     0.017         0.000
5021124       $     347,495.02     79.99                                0.25                     0.017         0.000
5021391       $     403,668.84     80.00                                0.25                     0.017         0.233
5021451       $     351,515.75     80.00                                0.25                     0.017         0.108
5021736       $     430,400.00     80.00                                0.25                     0.017         0.000
5021975       $     313,342.94     80.00                                0.25                     0.017         0.233
5022024       $     289,768.09     80.00                                0.25                     0.017         0.358
5022278       $     296,740.41     90.00                                0.25                     0.017         0.983
5022498       $     263,600.00     94.99       GD 2YR         11        0.25                     0.017         1.608
5022500       $     325,000.00     68.42                                0.25                     0.017         0.108
5022842       $     503,596.95     80.00                                0.25                     0.017         0.358
5023084       $     284,754.62     95.00                      17        0.25                     0.017         0.000
5024148       $     391,500.00     90.00                                0.25                     0.017         0.233
5024395       $     370,000.00     60.96                                0.25                     0.017         0.000
5024502       $     399,714.72     88.89                                0.25                     0.017         1.108
5024727       $     425,000.00     50.00                                0.25                     0.017         0.608
5025477       $     325,000.00     69.15                                0.25                     0.017         0.000
5025726       $     409,680.15     89.96                                0.25                     0.017         0.483
5025835       $     322,122.41     80.00                                0.25                     0.017         0.000
5026412       $     449,648.95     60.35                                0.25                     0.017         0.483
5026454       $     299,777.35     80.00                                0.25                     0.017         0.733
5027704       $     378,000.00     90.00                      11        0.25                     0.017         0.108
5027744       $     320,875.00     78.26                                0.25                     0.017         0.358
5027751       $     426,550.00     80.00                                0.25                     0.017         0.983
5028142       $     320,973.11     70.00                                0.25                     0.017         0.358
5028152       $     462,850.00     52.60                                0.25                     0.017         0.108
5028168       $     419,400.00     90.00                                0.25                     0.017         0.733
5028231       $     342,119.33     80.00                                0.25                     0.017         0.233
5028317       $     295,200.00     90.00                                0.25                     0.017         0.858
5028456       $     379,680.75     79.17                                0.25                     0.017         0.108
5028814       $     539,654.15     89.99                                0.25                     0.017         0.483
5028909       $     331,200.00     90.00       GD 4YR                   0.25                     0.017         1.358
5028955       $     327,600.00     90.00       GD 6YR                   0.25                     0.017         1.233
5029504       $     382,194.11     90.00                                0.25                     0.017         0.358
5029661       $     292,256.69     80.00                                0.25                     0.017         0.108
5029786       $     273,370.14     82.91                                0.25                     0.017         0.108
5030268       $     399,663.95     61.54                                0.25                     0.017         0.108
5030548       $     350,251.97     90.00                                0.25                     0.017         0.983
5031077       $     397,689.51     89.94                      17        0.25                     0.017         0.483
5031433       $     289,762.29     53.70                                0.25                     0.017         0.233
5032005       $     475,000.00     74.80                                0.25                     0.017         0.608
5032051       $     439,689.45     82.24       GD 3YR         17        0.25                     0.017         0.983
5032577       $     333,466.06     80.00                                0.25                     0.017         0.608
5032616       $     319,768.39     65.84                                0.25                     0.017         0.858
5032741       $     540,000.00     67.50                                0.25                     0.017         0.483
5033042       $     559,463.22     80.00                                0.25                     0.017         0.483
5033066       $     377,108.94     90.00                                0.25                     0.017         0.233
5033146       $     271,765.81     80.00                                0.25                     0.017         0.000
5033175       $   1,298,880.72     70.27                                0.25                     0.017         0.000
5033392       $     304,050.56     86.94                                0.25                     0.017         0.233
5033665       $     625,000.00     59.38                                0.25                     0.017         0.000
5033711       $     394,659.91     64.75                                0.25                     0.017         0.000
5033750       $     433,966.77     85.00                      06        0.25                     0.017         0.000
5034258       $     284,736.03     72.15                                0.25                     0.017         0.000
5034284       $     321,342.82     80.00       GD 3YR                   0.25                     0.017         0.358
5034380       $     364,338.29     78.49                                0.25                     0.017         0.000
5034599       $     342,900.00     90.00                                0.25                     0.017         0.608
5034761       $     319,274.50     90.00                      17        0.25                     0.017         0.983
5034880       $     523,513.84     80.00                                0.25                     0.017         0.000
5034987       $     281,745.93     80.00                                0.25                     0.017         0.858
5035024       $     296,795.60     90.00                                0.25                     0.017         1.108
5035320       $     324,720.18     46.76                                0.25                     0.017         0.000
5035366       $     271,450.00     90.00                                0.25                     0.017         0.483
5035678       $     254,386.10     95.00                                0.25                     0.017         0.108
5035758       $     250,454.46     89.97                                0.25                     0.017         0.483
5035768       $     349,713.11     77.90                                0.25                     0.017         0.233
5035834       $     346,737.85     93.89                                0.25                     0.017         0.483
5036082       $     649,453.92     75.14                                0.25                     0.017         0.108
5036152       $     274,774.58     64.71       GD 3YR                   0.25                     0.017         0.233
5036163       $     451,601.21     77.26                                0.25                     0.017         0.000
5036179       $     347,714.74     80.00                                0.25                     0.017         0.233
5036321       $     271,530.30     80.00                                0.25                     0.017         0.000
5036324       $     599,508.18     48.98                                0.25                     0.017         0.233
5036409       $     345,362.16     90.00                                0.25                     0.017         1.108
5036474       $     402,153.45     70.00                                0.25                     0.017         0.000
5036679       $     947,163.62     63.31                                0.25                     0.017         0.000
5036774       $     374,657.13     57.87                                0.25                     0.017         0.000
5036849       $     529,586.54     76.81                                0.25                     0.017         0.483
5037072       $     280,000.00     63.64       GD 2YR                   0.25                     0.017         0.108
5037251       $     372,000.00     80.00                                0.25                     0.017         0.358
5037387       $     249,557.64     65.82                                0.25                     0.017         0.000
5037853       $     454,054.24     80.00       GD 3YR                   0.25                     0.017         0.608
5038098       $     459,603.94     77.31                                0.25                     0.017         0.000
5038166       $     379,703.56     70.37                                0.25                     0.017         0.483
5038172       $     424,660.13     85.00                                0.25                     0.017         0.358
5038261       $     273,007.18     80.00                                0.25                     0.017         0.983
5038314       $     274,790.74     87.30       GD 3YR                   0.25                     0.017         0.608
5038375       $     271,765.81     80.00       FX 3YR                   0.25                     0.017         0.000
5038578       $     520,000.00     61.18       GD 3YR                   0.25                     0.017         0.233
5038587       $     319,774.15     89.14                                0.25                     0.017         0.983
5038696       $     439,712.18     80.00                                0.25                     0.017         1.358
5038747       $     458,664.93     89.13                                0.25                     0.017         1.608
5038797       $     356,400.00     90.00       GD 3YR                   0.25                     0.017         0.608
5039007       $     361,717.60     80.00       GD 3YR                   0.25                     0.017         0.483
5039014       $     492,000.00     80.00                                0.25                     0.017         1.233
5039045       $     404,684.06     79.88                                0.25                     0.017         0.483
5039083       $     279,770.48     61.00                                0.25                     0.017         0.233
5039332       $     635,900.00     80.00                                0.25                     0.017         0.858
5039352       $     319,744.10     67.37                                0.25                     0.017         0.358
5039435       $     310,332.58     80.00                                0.25                     0.017         0.000
5039597       $     639,475.39     80.00                                0.25                     0.017         0.233
5039686       $     259,650.00     94.42                      17        0.25                     0.017         0.733
5039694       $     319,724.48     80.00                                0.25                     0.017         0.000
5039767       $     264,067.34     93.32                                0.25                     0.017         1.358
5039831       $     312,000.00     75.73                                0.25                     0.017         0.608
5039945       $     424,642.95     64.15                                0.25                     0.017         0.108
5040009       $     259,200.00     80.00                                0.25                     0.017         1.233
5040039       $     599,470.63     69.78                                0.25                     0.017         0.000
5040069       $     289,750.31     74.36                                0.25                     0.017         0.000
5040160       $     389,695.76     78.39                                0.25                     0.017         0.483
5040166       $     280,000.00     71.43                                0.25                     0.017         0.858
5040204       $     357,870.65     90.00                                0.25                     0.017         0.000
5040238       $     338,000.00     77.17                                0.25                     0.017         0.858
5040518       $     593,148.32     80.00                                0.25                     0.017         0.608
5040804       $     274,558.86     83.59                      06        0.25                     0.017         0.358
5040806       $     294,164.57     80.00                                0.25                     0.017         0.358
5040982       $     379,664.73     55.88                                0.25                     0.017         0.000
5040989       $     294,270.26     95.00                                0.25                     0.017         0.483
5041153       $     250,000.00     53.95                                0.25                     0.017         0.733
5041167       $     312,000.00     80.00       GD 5YR                   0.25                     0.017         1.358
5042024       $     425,000.00     49.42       GD 3YR                   0.25                     0.017         0.000
5042116       $     456,000.00     80.00                                0.25                     0.017         0.358
5042293       $     257,766.00     95.00                                0.25                     0.017         0.733
5042328       $     750,000.00     60.00                                0.25                     0.017         0.108
5042481       $     515,443.92     75.33                                0.25                     0.017         0.858
5042618       $     324,746.46     56.03                                0.25                     0.017         0.483
5042868       $     380,000.00     80.00                                0.25                     0.017         0.983
5042892       $     359,552.39     89.99                                0.25                     0.017         1.108
5042923       $     371,500.00     65.00       GD 3YR                   0.25                     0.017         0.983
5043165       $     464,000.00     80.00                                0.25                     0.017         0.608
5043182       $     364,693.35     78.61       GD 3YR                   0.25                     0.017         0.108
5043249       $     304,795.34     88.66                                0.25                     0.017         1.233
5043281       $     274,763.23     52.38                                0.25                     0.017         0.000
5043295       $     312,000.00     86.19                      11        0.25                     0.017         1.108
5043316       $     294,980.91     80.00                                0.25                     0.017         0.733
5043424       $     290,000.00     69.30                                0.25                     0.017         0.608
5043454       $     339,721.30     80.00       GD 7YR                   0.25                     0.017         0.233
5043561       $     299,777.35     67.72                                0.25                     0.017         0.733
5043614       $     273,780.89     80.00                                0.25                     0.017         0.358
5043728       $     359,697.55     65.46                                0.25                     0.017         0.108
5043766       $     403,650.00     85.00                      06        0.25                     0.017         0.608
5043950       $     260,791.28     90.00       GD 4YR         17        0.25                     0.017         0.358
5044202       $     242,729.72     90.00       GD 3YR         17        0.25                     0.017         0.733
5044278       $     433,600.00     80.00                                0.25                     0.017         0.483
5044418       $     299,704.13     78.93                                0.25                     0.017         0.233
5044431       $     348,699.52     76.03                                0.25                     0.017         0.000
5044840       $     331,260.07     85.00                      06        0.25                     0.017         0.858
5045088       $     605,241.09     80.00                                0.25                     0.017         0.108
5045106       $     260,800.00     80.00                                0.25                     0.017         0.733
5045327       $     400,000.00     63.24                                0.25                     0.017         0.000
5045330       $     437,150.14     70.24                                0.25                     0.017         0.358
5045670       $     284,000.00     76.96                                0.25                     0.017         0.983
5045709       $     307,765.64     80.00                                0.25                     0.017         0.608
5045742       $     342,904.51     80.00                                0.25                     0.017         0.000
5045838       $     304,773.64     77.61                                0.25                     0.017         0.733
5045859       $     320,185.19     68.18                                0.25                     0.017         0.733
5045889       $     339,734.77     69.74       GD 3YR                   0.25                     0.017         0.483
5045920       $     379,717.98     80.00                                0.25                     0.017         0.733
5046123       $     399,687.96     78.43                                0.25                     0.017         0.483
5046133       $     327,756.57     80.00                                0.25                     0.017         0.733
5046213       $     449,612.55     75.63                                0.25                     0.017         0.000
5046491       $     273,086.80     79.99                                0.25                     0.017         0.483
5046539       $     283,050.00     95.00                                0.25                     0.017         1.233
5046605       $     385,000.00     88.51                                0.25                     0.017         1.108
5046751       $     307,788.03     80.00                                0.25                     0.017         1.108
5046833       $     281,780.01     80.00                                0.25                     0.017         0.483
5046905       $     397,657.32     74.81                                0.25                     0.017         0.000
5047011       $     269,289.76     67.46                                0.25                     0.017         0.483
5047172       $     259,919.00     80.00                                0.25                     0.017         0.233
5047209       $     427,690.22     80.00                                0.25                     0.017         0.858
5047248       $     270,000.00     66.01                                0.25                     0.017         0.000
5047262       $     334,518.73     80.00                                0.25                     0.017         0.108
5047277       $     380,000.00     76.02                                0.25                     0.017         0.483
5047389       $     279,758.92     70.00                                0.25                     0.017         0.000
5047406       $     300,000.00     91.19                                0.25                     0.017         1.233
5047460       $     299,771.72     75.00       GD 5YR                   0.25                     0.017         0.608
5047478       $     244,799.18     89.92                      17        0.25                     0.017         0.233
5047561       $     255,000.00     65.38                                0.25                     0.017         0.608
5047646       $     349,705.95     69.31                                0.25                     0.017         0.108
5047651       $     499,569.50     75.93                                0.25                     0.017         0.000
5047707       $     430,000.00     54.50                                0.25                     0.017         0.233
5048143       $     472,000.00     80.00                                0.25                     0.017         1.233
5048161       $     319,731.15     84.21                                0.25                     0.017         0.108
5048362       $     261,051.21     95.00                                0.25                     0.017         0.608
5048455       $     352,000.00     80.00       GD 5YR                   0.25                     0.017         0.733
5048622       $     409,155.97     70.00                                0.25                     0.017         0.108
5048690       $     247,401.57     80.00                                0.25                     0.017         0.358
5048694       $     309,358.48     80.00                                0.25                     0.017         0.483
5048764       $     510,780.97     80.00                                0.25                     0.017         0.233
5048981       $     559,584.39     80.00       GD 5YR                   0.25                     0.017         0.733
5049019       $     324,900.00     95.00                                0.25                     0.017         1.108
5049084       $     424,625.02     62.55       GD 3YR                   0.25                     0.017         0.000
5049144       $     835,000.00     69.87                                0.25                     0.017         0.608
5049372       $     323,659.62     90.00                                0.25                     0.017         0.733
5049591       $     358,400.00     70.00                                0.25                     0.017         0.358
5049692       $     302,449.69     80.00                                0.25                     0.017         0.108
5049695       $     270,189.06     80.00                                0.25                     0.017         0.483
5049870       $     322,748.03     95.00                                0.25                     0.017         0.483
5049890       $     426,400.00     80.00       GD 5YR                   0.25                     0.017         0.358
5049915       $     286,765.96     75.00                                0.25                     0.017         0.108
5050126       $     560,983.35     70.00       GD 4YR                   0.25                     0.017         0.733
5050139       $     600,000.00     52.40       GD 2YR                   0.25                     0.017         0.858
5050185       $     318,938.35     80.00                                0.25                     0.017         0.233
5050188       $     262,594.99     90.00                      06        0.25                     0.017         0.483
5050192       $     350,726.19     90.00                                0.25                     0.017         0.483
5050259       $     247,783.63     95.00                                0.25                     0.017         1.233
5050293       $     319,500.00     90.00                      11        0.25                     0.017         0.483
5050295       $     461,657.12     80.00       GD 5YR                   0.25                     0.017         0.733
5050405       $     305,772.90     90.00                                0.25                     0.017         0.733
5050537       $     256,000.00     80.00       GD 5YR                   0.25                     0.017         0.858
5050580       $     537,390.77     80.00                                0.25                     0.017         0.608
5050595       $     289,109.00     90.00                                0.25                     0.017         1.108
5050641       $     540,000.00     80.00                                0.25                     0.017         0.358
5050656       $     254,400.00     80.00                                0.25                     0.017         0.608
5050701       $     399,663.95     71.83                                0.25                     0.017         0.108
5050810       $     441,600.00     80.00                                0.25                     0.017         0.358
5051000       $     274,768.96     61.18                                0.25                     0.017         0.108
5051009       $     459,000.00     85.00       GD 4YR                   0.25                     0.017         1.358
5051015       $   1,100,000.00     66.07       GD 3YR                   0.25                     0.017         0.358
5051077       $     247,601.76     79.99                                0.25                     0.017         0.358
5051109       $     399,255.16     61.07                                0.25                     0.017         0.483
5051114       $     284,783.13     77.03                                0.25                     0.017         0.608
5051134       $     270,000.00     90.00                                0.25                     0.017         1.108
5051160       $     346,392.73     95.00       GD 5YR         17        0.25                     0.017         0.733
5051188       $     307,459.72     80.00       GD 2YR                   0.25                     0.017         0.483
5051253       $     395,250.00     85.00                      11        0.25                     0.017         0.108
5051295       $     368,739.55     78.16                                0.25                     0.017         0.983
5051356       $     457,527.75     80.00                                0.25                     0.017         0.108
5051485       $     297,772.86     75.00                                0.25                     0.017         0.608
5051508       $     419,672.35     72.43                                0.25                     0.017         0.483
5051525       $     319,731.15     47.07                                0.25                     0.017         0.108
5051580       $     409,410.83     89.13       GD 3YR                   0.25                     0.017         0.983
5051627       $     403,450.36     85.00                      06        0.25                     0.017         0.733
5051628       $     299,760.09     65.93       GD 2YR                   0.25                     0.017         0.358
5051655       $     499,600.15     76.34       GD 3YR                   0.25                     0.017         0.358
5051688       $     296,950.00     90.00                                0.25                     0.017         0.983
5051734       $     326,145.37     80.00       GD 6YR                   0.25                     0.017         0.483
5051797       $     274,211.39     90.00                      17        0.25                     0.017         0.858
5051860       $     274,780.08     79.76                                0.25                     0.017         0.358
5051937       $     263,200.00     80.00                                0.25                     0.017         0.858
5052299       $     300,000.00     77.32                                0.25                     0.017         0.483
5052308       $     399,663.95     62.02                                0.25                     0.017         0.108
5052351       $     454,412.51     85.00                      17        0.25                     0.017         0.733
5052362       $     273,396.94     80.00                                0.25                     0.017         0.733
5052495       $     329,748.89     73.33       GD 4YR                   0.25                     0.017         0.608
5052585       $     303,768.67     80.00                                0.25                     0.017         0.608
5052790       $     355,729.11     80.00                                0.25                     0.017         0.608
5053053       $     424,900.00     77.27                                0.25                     0.017         0.733
5053194       $     259,816.49     88.17                      01        0.25                     0.017         0.983
5053351       $     330,400.00     80.00       GD 3YR                   0.25                     0.017         0.858
5053426       $     310,280.84     90.00                                0.25                     0.017         0.983
5053505       $     573,750.00     85.00                                0.25                     0.017         0.483
5053629       $     672,500.00     79.12                                0.25                     0.017         0.483
5053639       $     299,754.09     21.43       GD 3YR                   0.25                     0.017         0.233
5053724       $     274,800.96     72.56       GD 3YR                   0.25                     0.017         0.858
5053762       $     275,310.40     95.00                                0.25                     0.017         1.108
5053828       $     377,705.12     75.61                                0.25                     0.017         0.483
5053906       $     319,762.51     71.11                                0.25                     0.017         0.733
5054007       $     398,680.92     70.00                                0.25                     0.017         0.358
5054018       $     350,000.00     50.36       GD 3YR                   0.25                     0.017         0.358
5054056       $     299,777.35     80.00                                0.25                     0.017         0.733
5054176       $     299,760.09     78.95                                0.25                     0.017         0.358
5054243       $     284,742.35     66.28                                0.25                     0.017         0.000
5054511       $     300,400.00     79.99       GD 3YR                   0.25                     0.017         0.858
5054546       $     320,000.00     78.40                                0.25                     0.017         0.733
5054641       $     268,669.60     95.00                                0.25                     0.017         1.233
5054699       $     386,400.00     80.00                                0.25                     0.017         0.858
5054706       $     287,469.93     84.99       GD 5YR         06        0.25                     0.017         0.358
5054822       $     374,700.11     65.22       GD 3YR                   0.25                     0.017         0.358
5054909       $     257,318.25     76.30       GD 5YR                   0.25                     0.017         0.983
5055001       $     371,706.69     90.00                                0.25                     0.017         1.358
5055030       $     339,747.67     80.00                                0.25                     0.017         0.733
5055117       $     349,740.24     73.68                                0.25                     0.017         0.733
5055404       $     419,455.89     80.00                                0.25                     0.017         0.233
5055442       $     324,000.00     80.00       GD 5YR                   0.25                     0.017         0.733
5055671       $     268,800.00     80.00                                0.25                     0.017         0.858
5055672       $     256,000.00     80.00                                0.25                     0.017         0.858
5055688       $     589,583.58     80.00                                0.25                     0.017         0.983
5055818       $     399,703.14     77.37       GD 5YR                   0.25                     0.017         0.733
5055838       $     274,750.00     70.00                                0.25                     0.017         0.000
5056094       $     427,170.92     90.00                                0.25                     0.017         0.608
5056172       $     339,721.30     80.00                                0.25                     0.017         0.233
5056269       $     291,783.29     80.00                                0.25                     0.017         0.733
5056335       $     272,650.00     95.00                                0.25                     0.017         1.608
5056359       $     475,655.48     80.00                                0.25                     0.017         0.858
5056360       $     265,122.41     90.00                      06        0.25                     0.017         1.108
5056390       $     308,000.00     80.00       GD 3YR                   0.25                     0.017         0.858
5056392       $     428,000.00     80.00                                0.25                     0.017         0.233
5056446       $     297,773.24     88.96                      33        0.25                     0.017         0.608
5056576       $     570,554.56     80.00                                0.25                     0.017         0.483
5056814       $     252,807.49     69.70       GD 5YR                   0.25                     0.017         0.608
5056889       $     493,751.26     90.00                                0.25                     0.017         0.983
5056956       $     674,432.92     90.00                      17        0.25                     0.017         0.108
5057012       $     301,950.00     90.00                      06        0.25                     0.017         1.108
5057052       $     311,268.82     79.99                                0.25                     0.017         0.733
5057238       $     259,807.04     79.54                                0.25                     0.017         0.733
5057318       $     331,865.60     90.00                                0.25                     0.017         0.983
5057359       $     359,100.00     90.00                      06        0.25                     0.017         0.983
5057387       $     500,000.00     55.87                                0.25                     0.017         1.108
5057483       $     807,629.57     68.49                                0.25                     0.017         0.983
5057510       $     295,900.00     79.99                                0.25                     0.017         0.483
5057564       $     295,500.00     78.91                                0.25                     0.017         0.483
5057581       $     375,000.00     63.56                                0.25                     0.017         0.233
5057621       $     337,209.42     49.09                                0.25                     0.017         0.000
5057725       $     359,960.00     80.00                                0.25                     0.017         1.358
5058214       $     663,750.00     75.00       GD 3YR                   0.25                     0.017         0.358
5058236       $     484,000.00     80.00                                0.25                     0.017         0.858
5058561       $     322,000.00     70.00                                0.25                     0.017         0.483
5058612       $     378,000.00     67.74                                0.25                     0.017         0.733
5058637       $     295,875.42     79.98                                0.25                     0.017         0.000
5058646       $     349,752.97     63.29                                0.25                     0.017         0.983
5058729       $     266,076.10     45.95                                0.25                     0.017         0.108
5058868       $     381,600.00     90.00                                0.25                     0.017         1.358
5058965       $     318,100.00     86.42                                0.25                     0.017         0.983
5058990       $     330,954.20     90.00                      06        0.25                     0.017         0.733
5058999       $     325,000.00     36.52                                0.25                     0.017         0.233
5059152       $     379,724.96     80.00                                0.25                     0.017         0.858
5059202       $     264,803.33     63.10                                0.25                     0.017         0.733
5059212       $     289,545.49     95.00                      17        0.25                     0.017         0.983
5059368       $     331,900.00     86.91                      33        0.25                     0.017         0.983
5059765       $     294,796.98     76.62                                0.25                     0.017         1.108
5059799       $     344,710.16     60.14                                0.25                     0.017         0.108
5059880       $     351,738.76     80.00                                0.25                     0.017         0.733
5060004       $     315,000.00     53.39                                0.25                     0.017         0.483
5060013       $     251,553.61     95.00                      06        0.25                     0.017         0.483
5060138       $     432,000.00     90.00       GD 5YR                   0.25                     0.017         1.733
5060145       $     384,000.00     80.00       GD 3YR                   0.25                     0.017         0.733
5060190       $     463,200.00     80.00       GD 3YR                   0.25                     0.017         0.483
5060222       $     520,000.00     76.47                                0.25                     0.017         0.983
5060332       $     269,750.00     94.99                      06        0.25                     0.017         0.858
5060334       $     379,703.56     70.70                                0.25                     0.017         0.483
5060394       $     288,000.00     80.00                                0.25                     0.017         0.483
5060609       $     272,000.00     80.00                                0.25                     0.017         0.733
5060813       $     335,013.38     90.00                      33        0.25                     0.017         0.983
5060924       $     649,574.80     65.99                                0.25                     0.017         1.358
5061061       $     305,000.00     75.31                                0.25                     0.017         0.483
5061277       $     254,000.00     65.14                                0.25                     0.017         0.733
5061318       $     253,425.47     80.00                                0.25                     0.017         1.108
5061400       $     375,000.00     60.00       GD 3YR                   0.25                     0.017         0.358
5061463       $     400,000.00     57.22                                0.25                     0.017         0.358
5061537       $     333,600.00     80.00                                0.25                     0.017         0.983
5061597       $     300,000.00     80.00                                0.25                     0.017         0.733
5061777       $     419,672.35     66.35       GD 4YR                   0.25                     0.017         0.483
5061779       $     275,000.00     73.73                                0.25                     0.017         0.733
5061945       $     423,669.25     77.94                                0.25                     0.017         0.483
5061955       $     295,450.00     95.00                                0.25                     0.017         1.358
5062267       $     323,400.00     64.89                                0.25                     0.017         0.733
5062284       $     310,000.00     54.87                                0.25                     0.017         0.608
5062309       $     395,675.40     68.29       GD 5YR                   0.25                     0.017         0.233
5062359       $     256,323.47     90.00                                0.25                     0.017         1.108
5062441       $     497,289.81     80.00                                0.25                     0.017         0.858
5062504       $     513,600.00     80.00                                0.25                     0.017         0.233
5062522       $     366,300.00     90.00                                0.25                     0.017         0.483
5062566       $     317,089.87     79.99                                0.25                     0.017         0.233
5062579       $     279,797.34     80.00                                0.25                     0.017         0.858
5062616       $     306,748.35     67.18                                0.25                     0.017         0.233
5062660       $     290,195.03     80.00                                0.25                     0.017         0.983
5062701       $     299,000.00     69.86                                0.25                     0.017         0.608
5062737       $     410,000.00     65.18       GD 3YR                   0.25                     0.017         0.608
5062783       $     270,000.00     77.14                                0.25                     0.017         0.000
5062790       $     500,000.00     65.79                                0.25                     0.017         0.233
5062824       $     336,000.00     80.00       GD 3YR                   0.25                     0.017         0.733
5062862       $     249,814.46     46.60       GD 6YR                   0.25                     0.017         0.733
5062933       $     260,000.00     80.00       GD 3YR                   0.25                     0.017         0.483
5062938       $     387,000.00     90.00                      06        0.25                     0.017         0.983
5062960       $     274,550.00     95.00                      17        0.25                     0.017         1.108
5063044       $     294,769.86     79.96                                0.25                     0.017         0.483
5063256       $     650,000.00     65.00                                0.25                     0.017         0.733
5063308       $     379,717.98     72.38       GD 5YR                   0.25                     0.017         0.733
5063411       $     297,000.00     84.62                      17        0.25                     0.017         1.233
5063605       $     295,769.10     80.00                                0.25                     0.017         0.483
5063633       $     303,785.43     80.00                                0.25                     0.017         0.983
5063679       $     279,792.19     80.00                                0.25                     0.017         0.733
5063803       $     487,609.75     80.00                                0.25                     0.017         0.358
5063885       $     264,876.62     95.00                                0.25                     0.017         1.358
5063897       $     348,000.00     80.00                                0.25                     0.017         0.733
5064406       $     299,760.09     59.29                                0.25                     0.017         0.358
5064449       $     256,000.00     93.77                                0.25                     0.017         1.358
5064465       $     247,855.00     95.00                                0.25                     0.017         1.108
5064517       $     265,000.00     60.85                                0.25                     0.017         0.608
5064574       $     930,198.43     70.00                                0.25                     0.017         0.000
5064577       $     350,000.00     72.16       GD 5YR                   0.25                     0.017         0.858
5064892       $     329,043.11     80.00                                0.25                     0.017         0.483
5065053       $     349,740.24     63.64                                0.25                     0.017         0.733
5065155       $     301,292.50     90.00                      13        0.25                     0.017         1.108
5065224       $     271,787.81     80.00                                0.25                     0.017         0.483
5065277       $     329,342.87     80.00                                0.25                     0.017         0.483
5065283       $     303,363.16     80.00                                0.25                     0.017         0.483
5065334       $     269,899.47     70.00                                0.25                     0.017         0.733
5065417       $     280,000.00     86.15                      17        0.25                     0.017         0.858
5065653       $     300,000.00     80.00       GD 6YR                   0.25                     0.017         0.858
5066050       $     399,710.49     56.74                                0.25                     0.017         0.858
5066373       $     280,000.00     79.83                                0.25                     0.017         0.483
5066463       $     345,600.00     90.00                                0.25                     0.017         1.108
5066535       $     488,929.96     95.00                                0.25                     0.017         1.358
5066540       $     304,475.00     95.00       GD 3YR                   0.25                     0.017         0.983
5066788       $     271,000.00     69.31                                0.25                     0.017         0.483
5066849       $     290,000.00     80.00                                0.25                     0.017         0.608
5066866       $     291,013.00     95.00                                0.25                     0.017         1.358
5066886       $     273,796.65     79.42                                0.25                     0.017         0.733
5066910       $     299,765.97     23.44       GD 3YR                   0.25                     0.017         0.483
5066919       $     264,808.19     86.81                                0.25                     0.017         0.858
5066952       $     271,522.27     95.00       GD 4YR                   0.25                     0.017         1.358
5066988       $     269,799.62     62.79                                0.25                     0.017         0.733
5066994       $     299,765.97     34.68                                0.25                     0.017         0.483
5067016       $     284,000.00     89.53                                0.25                     0.017         1.358
5067017       $     423,677.36     80.00                                0.25                     0.017         0.608
5067307       $     327,784.00     85.00                      06        0.25                     0.017         0.983
5067347       $     456,000.00     80.00                                0.25                     0.017         0.483
5067455       $     283,299.91     90.00                      12        0.25                     0.017         0.983
5067822       $     285,000.00     82.61                      17        0.25                     0.017         1.233
5067920       $     254,805.96     75.00                                0.25                     0.017         0.608
5068017       $     319,500.00     90.00                                0.25                     0.017         1.358
5068173       $     432,000.00     80.00                                0.25                     0.017         0.733
5068197       $     267,318.90     93.65       FX 3YR                   0.25                     0.017         1.108
5068345       $     297,600.00     80.00                                0.25                     0.017         0.733
5068621       $     260,000.00     68.42       GD 4YR                   0.25                     0.017         0.858
5068666       $     620,000.00     80.00       GD 4YR                   0.25                     0.017         1.108
5068817       $     294,950.00     74.68                                0.25                     0.017         1.108
5069203       $     283,500.00     90.00                                0.25                     0.017         0.483
5069446       $     351,332.45     80.00                                0.25                     0.017         0.608
5069719       $     299,793.54     94.91                      06        0.25                     0.017         1.108
5069806       $     333,520.00     80.00                                0.25                     0.017         0.733
5069840       $     519,594.35     80.00                                0.25                     0.017         0.483
5070079       $     352,000.00     80.00       GD 5YR                   0.25                     0.017         0.000
5070109       $     318,513.44     75.00                                0.25                     0.017         0.733
5070287       $     418,059.00     80.00       GD 2YR                   0.25                     0.017         0.733
5070371       $     271,945.49     72.18                                0.25                     0.017         0.608
5070421       $     288,800.00     76.24                                0.25                     0.017         0.483
5070503       $     275,000.00     68.75                                0.25                     0.017         1.108
5070549       $     304,000.00     80.00                                0.25                     0.017         0.858
5070683       $     344,000.00     80.00                                0.25                     0.017         0.483
5070934       $     316,650.65     80.00                                0.25                     0.017         0.858
5071092       $     619,528.23     80.00                                0.25                     0.017         0.608
5071131       $     303,912.73     79.79                                0.25                     0.017         0.483
5071229       $     306,150.00     89.99                                0.25                     0.017         1.233
5071370       $     439,673.45     75.21                                0.25                     0.017         0.733
5071427       $     300,000.00     92.88                      17        0.25                     0.017         0.983
5071458       $     300,800.00     80.00                                0.25                     0.017         0.608
5071531       $     382,300.00     80.00                                0.25                     0.017         0.608
5071571       $     300,000.00     93.75                                0.25                     0.017         1.608
5071738       $     344,000.00     80.00                                0.25                     0.017         0.733
5072154       $     292,600.00     95.00                                0.25                     0.017         0.983
5072190       $     270,000.00     69.23                                0.25                     0.017         0.483
5072385       $     489,662.78     79.67       GD 4YR                   0.25                     0.017         1.108
5072389       $     319,200.00     80.00                                0.25                     0.017         0.858
5072398       $     324,000.00     80.00                                0.25                     0.017         0.983
5072599       $     649,541.24     73.70       GD 4YR                   0.25                     0.017         0.983
5072630       $     246,400.00     80.00                                0.25                     0.017         0.983
5072931       $     288,000.00     80.00                                0.25                     0.017         0.983
5073012       $     330,000.00     68.75                                0.25                     0.017         0.858
5073187       $     261,250.00     94.66                                0.25                     0.017         1.233
5073258       $     330,766.38     37.57                                0.25                     0.017         0.983
5073654       $     287,000.00     57.75       GD 5YR                   0.25                     0.017         0.858
5073786       $     298,000.00     80.00                                0.25                     0.017         0.983
5073810       $     383,000.00     75.10                                0.25                     0.017         0.358
5074141       $     275,779.28     57.62                                0.25                     0.017         0.358
5074416       $     639,200.00     80.00       GD 5YR                   0.25                     0.017         0.733
5074456       $     390,000.00     58.65       GD 5YR                   0.25                     0.017         0.733
5074563       $     374,707.46     71.43                                0.25                     0.017         0.483
5074572       $     350,000.00     54.26                                0.25                     0.017         0.733
5074581       $     438,356.84     63.30                                0.25                     0.017         0.000
5074722       $     309,889.65     80.00                                0.25                     0.017         0.233
5074764       $     331,550.00     95.00       GD 3YR                   0.25                     0.017         0.983
5074806       $     435,000.00     78.38                                0.25                     0.017         1.108
5074873       $     392,000.00     80.00                                0.25                     0.017         0.608
5074891       $     448,000.00     80.00                                0.25                     0.017         0.358
5074896       $     259,802.16     63.41                                0.25                     0.017         0.608
5075072       $     444,000.00     60.00                                0.25                     0.017         0.483
5075185       $     400,000.00     64.10                                0.25                     0.017         0.983
5075317       $     319,774.15     80.00                                0.25                     0.017         0.983
5075747       $     304,000.00     80.00       GD 3YR                   0.25                     0.017         0.358
5075772       $     315,000.00     74.12                                0.25                     0.017         0.858
5075867       $     425,000.00     78.70                                0.25                     0.017         0.608
5076044       $     382,575.80     80.00                                0.25                     0.017         0.000
5076116       $     249,375.00     95.00                                0.25                     0.017         1.233
5076147       $     296,320.38     94.73                                0.25                     0.017         1.733
5076204       $     345,000.00     36.51                                0.25                     0.017         0.983
5076426       $     280,000.00     60.22       GD 1YR                   0.25                     0.017         0.000
5076473       $     249,784.75     53.76                                0.25                     0.017         0.000
5077232       $     302,400.00     80.00                                0.25                     0.017         0.608
5077285       $     260,564.23     80.00                                0.25                     0.017         0.000
5077619       $     369,750.00     85.00                                0.25                     0.017         0.858
5077656       $     460,000.00     80.00                                0.25                     0.017         0.858
5077754       $     299,798.70     80.00                                0.25                     0.017         1.233
5078020       $     345,800.00     70.00                                0.25                     0.017         0.483
5078450       $     385,000.00     65.25                                0.25                     0.017         0.733
5078725       $     320,000.00     73.99                                0.25                     0.017         0.983
5078745       $     261,000.00     78.79                                0.25                     0.017         0.358
5078818       $     269,181.67     90.00                      01        0.25                     0.017         0.000
5079091       $     247,200.00     80.00                                0.25                     0.017         0.608
5079324       $     250,000.00     62.66                                0.25                     0.017         1.108
5079329       $     459,000.00     60.47                                0.25                     0.017         0.733
5079416       $     624,200.00     79.99                                0.25                     0.017         1.358
5081153       $     335,000.00     67.68                                0.25                     0.017         0.733
5081771       $     328,000.00     80.00                                0.25                     0.017         0.983
5081823       $     288,000.00     90.00                      17        0.25                     0.017         0.858
5082825       $     253,600.00     80.00                                0.25                     0.017         0.983
5082948       $     375,000.00     74.26                                0.25                     0.017         0.483
5083089       $     285,800.00     76.01                                0.25                     0.017         1.733
5083535       $     270,000.00     66.50       GD 3YR                   0.25                     0.017         0.483
5084778       $     350,000.00     46.01                                0.25                     0.017         0.733
5085369       $     354,400.00     83.39                                0.25                     0.017         1.233
5085614       $     333,000.00     90.00                                0.25                     0.017         0.983
5088195       $     247,400.00     94.99                      06        0.25                     0.017         1.358
              $ 250,032,949.47


COUNT:                  683
WAC:            7.265057998
WAM:            358.6372268
WALTV:          77.66486205

</TABLE>



<TABLE>
NASCOR
NMI / 1999-23  Exhibit F-3
30 YEAR FIXED RATE NON RELOCATION  LOANS
<CAPTION>

     (i)      (ii)                                                                 (iii)            (iv)              (v)
    -----     ---------------------------   -----                  -----          --------        --------         -------- ---
                                                                                                                      NET
  MORTGAGE                                                                                        MORTGAGE         MORTGAGE
    LOAN                                                            ZIP           PROPERTY        INTEREST         INTEREST D
   NUMBER     CITY                          STATE                  CODE             TYPE            RATE             RATE
  --------    ----------------------------------------------------------          --------        --------         -------- ---

<S>          <C>                          <C>                   <C>             <C>              <C>               <C>
   4844533    ANN ARBOR                     MI                     48103            SFD            6.750             6.483
   5011786    NEW YORK                      NY                     10011            COP            7.125             6.250
   5011935    DARIEN                        CT                     06820            SFD            6.625             6.250
   5012012    LOVELAND                      CO                     80537            SFD            7.000             6.250
   5012188    BIRMINGHAM TOWNSHIP           PA                     19382            SFD            6.625             6.250
   5012298    SANDY                         UT                     84092            SFD            6.625             6.250
   5012320    SAN FRANCISCO                 CA                     94123            LCO            6.625             6.250
   5012335    CHICAGO                       IL                     60611            HCO            6.500             6.233
   5012364    MORRIS TOWNSHIP               NJ                     07960            SFD            6.625             6.250
   5012384    EVERGREEN                     CO                     80439            SFD            6.750             6.250
   5012501    MONTGOMERY                    NJ                     08502            SFD            6.375             6.108
   5012536    MONTVALE                      NJ                     07645            SFD            6.625             6.250
   5012569    ARMONK                        NY                     10504            SFD            7.000             6.250
   5012576    MOORESVILLE                   NC                     28115            SFD            6.625             6.250
   5012696    LAGUNA NIGUEL                 CA                     92677            SFD            6.375             6.108
   5012733    NEW CANAAN                    CT                     06840            SFD            6.875             6.250
   5012734    MASON                         OH                     45040            SFD            6.375             6.108
   5012750    THOUSAND OAKS                 CA                     91367            SFD            6.875             6.250
   5012772    TALLAHASSEE                   FL                     32312            SFD            7.250             6.250
   5012948    RIDGEFIELD                    CT                     06877            SFD            6.875             6.250
   5013068    CARLSBAD                      CA                     92009            SFD            7.000             6.250
   5013119    NEW YORK                      NY                     10028            COP            6.500             6.233
   5013125    EAST MENDHAM                  NJ                     07945            SFD            6.625             6.250
   5013133    KIRKLAND                      WA                     98033            SFD            6.500             6.233
   5013147    MALVERN                       PA                     19355            SFD            6.625             6.250
   5013169    ST CHARLES                    IL                     60175            SFD            6.750             6.250
   5013177    VIENNA                        VA                     22182            SFD            7.000             6.250
   5013188    SAN MATEO                     CA                     94402            SFD            7.125             6.250
   5013197    WHITE LAKE TOWNSHIP           MI                     48386            SFD            6.875             6.250
   5013287    CLARK                         NJ                     07066            SFD            7.500             6.250
   5013341    BOONTON                       NJ                     07005            SFD            6.750             6.250
   5013415    TENAFLY                       NJ                     07670            SFD            6.875             6.250
   5014137    CARMEL                        IN                     46032            SFD            6.375             6.108
   5014141    RANDOLPH                      NJ                     07869            SFD            7.125             6.250
   5014176    MAHWAH                        NJ                     07430            SFD            6.375             6.108
   5014187    SOMERS                        NY                     10589            SFD            6.750             6.250
   5021906    AVON                          CT                     06001            SFD            6.625             6.250
   5036252    CHARLOTTE                     NC                     28226            SFD            7.000             6.500
   5036273    FRANKLIN                      TN                     37064            SFD            6.875             6.500
   5036289    TUSTIN                        CA                     92782            SFD            7.000             6.500
   5036351    PLANO                         TX                     75023            SFD            6.750             6.483
   5036432    PLANO                         TX                     75093            SFD            7.000             6.500
   5036439    FLOWER MOUND                  TX                     75028            SFD            7.000             6.500
   5036457    SAN DIEGO                     CA                     92131            SFD            7.000             6.500
   5036489    WEST CHESTER                  PA                     19382            SFD            7.125             6.500
   5036498    PLYMOUTH                      MN                     55446            SFD            6.625             6.358
   5036509    WESTON                        FL                     33326            SFD            6.375             6.108
   5036519    CLINTON TOWNSHIP              NJ                     08801            SFD            6.500             6.233
   5036573    CORNELIUS                     NC                     28031            SFD            7.125             6.500
   5036621    DALLAS                        TX                     75214            SFD            7.000             6.500
   5036651    PARKLAND                      FL                     33076            SFD            7.125             6.500
   5036712    WINSTON-SALEM                 NC                     27106            SFD            6.375             6.108
   5036743    CHARLOTTE                     NC                     28210            SFD            6.750             6.483
   5036795    BETHESDA                      MD                     20817            SFD            6.625             6.358
   5036817    IRVINE                        CA                     92604            SFD            6.500             6.233
   5036831    CELEBRATION                   FL                     34747            SFD            7.000             6.500
   5036848    DANBURY                       CT                     06811            SFD            6.750             6.483
   5036864    BOLTON                        MA                     01740            SFD            6.750             6.483
   5036880    BALA CYNWYD                   PA                     19004            SFD            6.375             6.108
   5036897    WASHINGTON                    NJ                     07853            SFD            6.750             6.483
   5036907    MCKINNEY                      TX                     75070            SFD            6.875             6.500
   5056790    SARATOGA                      CA                     95070            SFD            7.000             6.500
   5056803    ARNOLD                        MD                     21012            SFD            6.750             6.483
   5056819    FAIRFIELD                     CA                     94585            SFD            7.125             6.500
   5056849    CHARLOTTE                     NC                     28203            SFD            7.125             6.500
   5056873    ROSEVILLE                     CA                     95661            SFD            7.125             6.500
   5056887    CHARLOTTE                     NC                     28203            SFD            7.125             6.500
   5056894    BELMONT                       MA                     02178            SFD            7.000             6.500
   5056905    THE WOODLANDS                 TX                     77382            SFD            6.750             6.483
   5056920    CATAWBA                       NC                     28609            SFD            7.000             6.500
   5056949    HERCULES                      CA                     94547            SFD            7.000             6.500
   5056959    ROCKLIN                       CA                     95765            SFD            7.125             6.500
   5056974    ENUMCLAW                      WA                     98022            SFD            7.000             6.500
   5056980    NEW MARKET                    MD                     21774            SFD            6.875             6.500
   5056992    ALPHARETTA                    GA                     30005            SFD            6.875             6.500
   5057037    ROSWELL                       GA                     30075            PUD            6.875             6.500
   5057049    DEL MAR                       CA                     92014            SFD            6.625             6.358
   5057067    FRANKFORT                     IL                     60423            SFD            6.875             6.500
   5057084    GLASTONBURY                   CT                     06033            SFD            6.750             6.483
   5057091    HOUSTON                       TX                     77019            SFD            7.000             6.500
   5057117    CHARLOTTE                     NC                     28211            SFD            7.250             6.500
   5057121    LA JOLLA                      CA                     92037            SFD            6.750             6.483
   5057126    BELMONT                       CA                     94002            SFD            7.125             6.500
   5073820    SCOTTSDALE                    AZ                     85259            SFD            7.125             6.500
   5073829    STREAMWOOD                    IL                     60107            SFD            7.000             6.500
   5073840    CHARLOTTE                     NC                     28277            SFD            7.375             6.500
   5073855    CHARLOTTE                     NC                     28226            SFD            7.250             6.500
   5073869    CHAROTTE                      NC                     28209            SFD            7.125             6.500
   5073881    TUSTIN                        CA                     92782            SFD            7.125             6.500
   5073893    GOLDEN VALLEY                 MN                     55416            SFD            6.750             6.483
   5073904    CUPERTINO                     CA                     95014            SFD            7.125             6.500
   5073927    CHESTERFIELD                  MO                     63005            SFD            7.000             6.500
   5073935    CARMEL                        IN                     46032            SFD            6.500             6.233
   5073942    LAGUNA BEACH                  CA                     92677            SFD            7.125             6.500
   5073948    PLEASANTON                    CA                     94588            SFD            6.875             6.500
   5073958    RENTON                        WA                     98056            SFD            6.750             6.483
   5073962    OLNEY                         MD                     20832            SFD            7.125             6.500
   5073976    SAN RAFAEL                    CA                     94901            SFD            7.000             6.500
   5073987    LOW MERION TOWNSHIP           PA                     19010            SFD            6.750             6.483
   5073993    AURORA                        IL                     60504            SFD            7.000             6.500
   5074001    ALLEN                         TX                     75013            SFD            7.250             6.500
   5074004    NEWPORT                       RI                     02840            SFD            7.250             6.500
   5074007    LITHONIA                      GA                     30038            SFD            6.750             6.483
   5074012    BUFORD                        GA                     30519            SFD            7.250             6.500
   5074278    BOCA RATON                    FL                     33434            SFD            6.625             6.358
   5074284    GREENVILLE                    SC                     29615            SFD            7.125             6.500
   5074290    THOUSAND OAKS                 CA                     91320            SFD            6.375             6.108
   5074298    THE WOODLANDS                 TX                     77381            SFD            6.875             6.500
   5074311    TORRENCE                      CA                     90505            SFD            6.375             6.108
   4875725    SCOTTSDALE                    AZ                     85259            SFD            6.250             5.983
   5006486    RUMSON                        NJ                     07760            SFD            6.625             6.358
   5008908    NEWTOWN                       PA                     18940            SFD            6.875             6.500
   5008919    SAN RAMON                     CA                     94583            PUD            6.875             6.500
   5011834    HUNTINGTON                    NY                     11743            SFD            6.875             6.500
   5012330    SUWANEE                       GA                     30024            SFD            6.625             6.358
   5015246    LAGUNA NIGUEL                 CA                     92068            SFD            6.500             6.233
   5015332    GREENSBORO                    NC                     27408            SFD            6.625             6.358
   5018950    MISSION HILLS                 KS                     66208            SFD            6.625             6.358
   5026343    WESTWOOD                      WA                     98126            SFD            6.500             6.233
   5029920    LONG BEACH                    CA                     90803            SFD            6.500             6.233
   5032733    SAN JUAN CAPISTRANO           CA                     92675            SFD            6.375             6.108
   5035182    ESCANABA                      MI                     49829            SFD            7.000             6.500
   5036198    CHATHAM                       NJ                     07928            SFD            6.500             6.233
   5036485    HOUSTON                       TX                     77059            SFD            6.750             6.483
   5044241    LONG GROVE                    IL                     60047            SFD            6.875             6.500
   5045719    NEWTOWN                       CT                     06470            SFD            6.750             6.483
   5048469    LORENA                        TX                     76655            SFD            6.750             6.483
   4996029    FREDERICK                     MD                     21703            SFD            7.000             6.500
   5005150    BRIGHTON                      MI                     48114            SFD            6.500             6.233
   5012366    ST CHARLES                    IL                     60175            SFD            6.750             6.483
   5013146    WEST HARTFORD                 CT                     06117            SFD            6.875             6.500
   5019078    CASTAIC                       CA                     91384            SFD            6.875             6.500
   5019885    RANDOLPH                      NJ                     07869            SFD            6.375             6.108
   5025250    EASLEY                        SC                     29642            SFD            6.875             6.500
   5028921    CALEDONIA TWP                 MI                     49316            SFD            6.500             6.233
   5034168    EAST HADDAM                   CT                     06423            SFD            6.500             6.233
   5037201    OCEANSIDE                     NY                     11572            SFD            6.875             6.500
   5042671    BARRINGTON                    IL                     60010            SFD            6.875             6.500
   5045956    MCCORDSVILLE                  IN                     46055            SFD            6.625             6.358
   5047137    ZIONSVILLE                    IN                     46077            SFD            6.750             6.483
</TABLE>


<TABLE>
NASCOR
NMI / 1999-23  Exhibit F-3
30 YEAR FIXED RATE NON RELOCATION  LOANS
<CAPTION>


     (i)                  (vi)               (vii)            (viii)             (ix)             (x)     (xi)           (xii)
    -----              ----------          --------         ----------      --------------      ------   -------      ----------
                                                                                CUT-OFF
  MORTGAGE              CURRENT            ORIGINAL          SCHEDULED           DATE                                  MORTGAGE
    LOAN                MONTHLY             TERM TO          MATURITY          PRINCIPAL                               INSURANCE
   NUMBER               PAYMENT            MATURITY            DATE             BALANCE           LTV    UBSIDY          CODE
  --------             ----------          --------         -----------     --------------      ------   -------      ----------

<S>                  <C>                   <C>              <C>           <C>                 <C>       <C>          <C>
   4844533              1783.65               360              46874         $   271,047.49      77.14
   5011786              3230.49               360              47119         $   476,367.81      70.00
   5011935              5442.65               360              46997         $   840,722.35      54.49
   5012012               1854.2               360              47119         $   276,834.66      77.44
   5012188              2317.61               360              46874         $   356,623.37      80.00
   5012298              2407.57               360              46905         $   370,826.97      76.73
   5012320              1836.42               360              47119         $   284,680.39      80.00
   5012335              1658.55               360              46966         $   259,213.96      80.00
   5012364              1970.24               360              47027         $   304,629.90      85.00                    11
   5012384              2008.06               360              46935         $   304,216.32      90.00                     1
   5012501              2105.88               360              47027         $   333,881.22      90.00                    13
   5012536              2305.12               360              46966         $   355,614.84      80.00
   5012569              3604.95               360              47027         $   536,819.22      85.00                     1
   5012576              2993.46               360              47027         $   461,835.73      85.00                    11
   5012696              1712.53               360              47088         $   272,128.73      90.00                     1
   5012733              6569.29               360              46966         $   988,349.18      54.20
   5012734              1607.09               360              47178         $   256,149.31      89.99                    13
   5012750              3015.31               360              46935         $   453,395.55      90.00                    11
   5012772              2646.85               360              46966         $   383,897.84      72.12
   5012948              4197.78               360              46997         $   632,223.01      74.84
   5013068              4204.72               360              46935         $   624,465.75      80.00
   5013119              2844.31               360              47088         $   446,258.36      52.48
   5013125               1926.7               360              47027         $   297,897.74      85.00                    11
   5013133               1590.6               360              47027         $   247,084.31      95.00
   5013147              2561.24               360              47119         $   397,121.61      66.11
   5013169              1897.15               360              47027         $   289,650.54      90.00                     1
   5013177              2525.83               360              47119         $   377,108.93      74.99
   5013188              2644.35               360              47088         $   389,607.05      79.94
   5013197              2163.93               360              47027         $   325,235.07      90.00                    12
   5013287              1850.13               360              47027         $   262,371.03      90.00
   5013341              2990.04               360              47088         $   457,345.89      80.00
   5013415              3443.63               360              47027         $   519,214.41      87.51                    11
   5014137              4117.55               360              46966         $   651,794.79      75.00
   5014141              2021.16               360              47119         $   297,938.58      80.00
   5014176              4200.52               360              47088         $   667,565.86      80.00
   5014187              2756.55               360              47150         $   422,394.93      74.56
   5021906              1792.87               360              47150         $   278,241.78      80.00
   5036252              2980.56               360              47209         $   446,142.32      80.00
   5036273              2657.93               360              47178         $   402,531.10      79.99
   5036289              3712.39               360              47239         $   556,154.37      79.94
   5036351              2031.79               360              47119         $   311,058.36      80.84
   5036432              1829.58               360              47209         $   273,859.71      79.71
   5036439               1769.9               360              47150         $   264,476.62      88.09                    13
   5036457               2017.2               360              47239         $   302,197.14      80.00
   5036489              2379.32               360              47209         $   351,733.03      80.00
   5036498              1997.26               360              47209         $   310,528.71      79.98
   5036509              1965.19               360              47239         $   313,823.66      67.02
   5036519               1896.2               360              47209         $   298,629.23      75.77
   5036573              2324.33               360              47209         $   343,604.06      75.49
   5036621              3100.31               360              47178         $   463,674.44      80.00
   5036651               1869.7               360              47119         $   275,707.28      80.00
   5036712              1971.43               360              47178         $   314,141.15      80.00
   5036743              1686.36               360              47209         $   258,868.03      80.00
   5036795              2081.01               360              47178         $   323,255.66      69.15
   5036817              1630.74               360              47209         $   256,821.11      80.00
   5036831              2328.56               360              47209         $   348,548.70      82.97                    12
   5036848              1751.21               360              47209         $   268,824.56      80.00
   5036864              3787.81               360              47150         $   580,420.38      80.00
   5036880              2046.29               360              47150         $   323,842.38      80.00
   5036897              1681.17               360              47209         $   258,071.52      80.00
   5036907               2628.9               360              47209         $   398,479.62      80.00
   5056790              4324.47               360              47270         $   648,392.25      78.31
   5056803              1764.19               360              47239         $   271,055.31      80.00
   5056819                3153                360              47239         $   466,489.61      80.00
   5056849              2290.64               360              47270         $   339,179.48      85.00                    12
   5056873              2155.06               360              47239         $   318,842.64      75.00
   5056887              2398.44               360              47270         $   355,140.85      80.00
   5056894              3047.75               360              47270         $   456,966.92      90.00                    12
   5056905              2297.72               360              47270         $   353,339.82      80.00
   5056920              1829.58               360              47270         $   274,319.81      78.57
   5056949             $1,662.26              360            1-May-29        $   249,023.59      95.00                    12
   5056959             $1,659.50              360            1-May-29        $   245,525.07      95.00                    12
   5056974             $1,977.61              360            1-Jun-29        $   296,514.78      80.34
   5056980             $1,886.70              360            1-Jun-29        $   286,471.99      80.00
   5056992             $1,813.12              360            1-Jun-29        $   275,300.40      80.00
   5057037             $1,734.29              360            1-Jun-29        $   263,330.81      89.49                    12
   5057049             $3,521.71              360            1-May-29        $   548,042.87      55.00
   5057067             $2,049.62              360            1-May-29        $   310,942.48      80.00
   5057084             $2,205.23              360            1-May-29        $   338,819.16      80.00
   5057091             $1,662.26              360            1-May-29        $   249,023.59      95.00                    12
   5057117             $2,114.75              360            1-May-29        $   308,853.16      55.36
   5057121             $4,151.03              360            1-Jun-29        $   638,337.59      76.19
   5057126             $2,937.41              360            1-May-29        $   434,592.89      65.07
   5073820             $2,112.24              360            1-Jun-29        $   312,763.39      75.66
   5073829             $1,971.96              360            1-Jun-29        $   295,666.86      95.00                    11
   5073840             $2,417.36              360            1-Jul-29        $   349,465.72      70.00
   5073855             $1,691.80              360            1-Jul-29        $   247,611.89      80.00
   5073869             $1,886.41              360            1-Jul-29        $   279,550.85      78.87
   5073881             $2,640.98              360            1-Jul-29        $   390,880.53      80.00
   5073893             $1,815.56              360            1-Jul-29        $   279,436.62      80.00
   5073904             $1,751.67              360            1-Jun-29        $   259,372.53      50.00
   5073927             $3,056.40              360            1-Jun-29        $   458,107.59      80.00
   5073935             $1,959.41              360            1-Jul-29        $   309,438.00      78.48
   5073942             $2,604.26              360            1-Jul-29        $   385,929.93      90.00                    11
   5073948             $1,860.93              360            1-Jun-29        $   282,558.94      80.00
   5073958             $1,854.99              360            1-Jul-29        $   285,506.13      74.09
   5073962             $3,144.24              360            1-Jul-29        $   465,951.37      89.99                    11
   5073976             $3,182.81              360            1-Jul-29        $   477,613.43      80.00
   5073987             $4,021.31              360            1-Jun-29        $   618,389.55      75.61
   5073993             $1,858.86              360            1-Jun-29        $   278,708.90      79.99
   5074001             $1,944.20              360            1-Jul-29        $   284,554.01      83.82                    12
   5074004             $2,862.41              360            1-Jun-29        $   418,612.08      80.00
   5074007             $1,931.53              360            1-Jul-29        $   297,284.83      90.00                    12
   5074012             $1,878.75              360            1-Jul-29        $   274,974.02      95.00                    12
   5074278             $1,815.28              360            1-Jun-29        $   282,745.49      90.00                    13
   5074284             $2,243.48              360            1-Jul-29        $   332,465.84      90.00                    12
   5074290             $1,790.19              360            1-Apr-29        $   285,606.96      92.42                    11
   5074298             $1,708.01              360            1-Jun-29        $   259,340.95      88.89                    11
   5074311             $2,358.23              360            1-Jul-29        $   377,297.94      90.00                    11
   4875725             $1,884.10              360            1-Nov-28        $   303,027.50      90.00
   5006486             $4,001.95              360            1-Jun-29        $   623,336.57      72.25
   5008908             $2,529.18              360            1-May-29        $   383,695.03      84.62                    17
   5008919             $1,681.74              360            1-Jun-29        $   255,351.08      80.00
   5011834             $1,625.90              360            1-Jun-29        $   246,872.63      90.00                    06
   5012330             $1,600.78              360            1-May-29        $   248,465.96      76.92
   5015246             $2,224.25              360            1-May-29        $   350,617.13      85.00                    17
   5015332             $1,657.13              360            1-May-29        $   257,749.01      80.00
   5018950             $2,241.09              360            1-Jul-29        $   349,380.70      54.60
   5026343             $1,921.49              360            1-Jun-29        $   303,036.83      80.00
   5029920             $2,970.72              360            1-Jul-29        $   469,147.92      70.15
   5032733             $2,089.97              360            1-Jul-29        $   334,377.79      74.44
   5035182             $1,995.91              360            1-Jul-29        $   299,506.75      70.75
   5036198             $3,918.83              360            1-Jul-29        $   618,874.79      80.00
   5036485             $2,006.77              360            1-Jul-29        $   308,865.72      79.99
   5044241             $2,246.70              360            1-Jul-29        $   341,423.70      70.95
   5045719             $1,935.42              360            1-Aug-29        $   298,143.08      80.00
   5048469             $2,553.86              360            1-Jul-29        $   393,070.06      90.00
   4996029             $1,663.26              360            1-May-29        $   249,173.10      68.96
   5005150             $1,870.93              360            1-May-29        $   294,920.88      80.00
   5012366             $1,751.22              360            1-Jun-29        $   269,298.66      87.10
   5013146             $1,839.41              360            1-May-29        $   279,050.91      80.00
   5019078             $2,571.88              360            1-Jun-29        $   390,507.60      90.00                    12
   5019885             $2,393.48              360            1-May-29        $   382,217.28      85.00                    17
   5025250             $1,671.23              360            1-Jun-29        $   253,755.13      80.00
   5028921             $1,816.32              360            1-Jun-29        $   286,576.41      80.00
   5034168             $1,877.25              360            1-Jun-29        $   296,190.13      90.00                    12
   5037201             $1,806.56              360            1-Jul-29        $   274,536.60      73.33
   5042671             $1,732.85              360            1-Jul-29        $   263,335.51      59.01
   5045956             $1,813.37              360            1-Feb-29        $   279,943.78      80.00
   5047137             $3,214.46              360            1-Jul-29        $   494,744.18      80.00
                                                                            $ 50,733,679.46

</TABLE>


                                   EXHIBIT F-3

NASCOR
NMI / 1999-23  Exhibit F-3
30 YEAR FIXED RATE NON RELOCATION  LOANS


     (i)              (xiii)       (xiv)              (xv)                (xvI)
    -----            --------   -----------        -----------         --------

  MORTGAGE                         T.O.P.            MASTER               FIXED
    LOAN             SERVICE      MORTGAGE           SERVICE            RETAINE
   NUMBER              FEE          LOAN               FEE                YIELD
  --------           --------   -----------        -----------         --------

   4844533             0.25                           0.017               0.000
   5011786            0.858                           0.017               0.000
   5011935            0.358                           0.017               0.000
   5012012            0.733                           0.017               0.000
   5012188            0.358                           0.017               0.000
   5012298            0.358                           0.017               0.000
   5012320            0.358                           0.017               0.000
   5012335             0.25                           0.017               0.000
   5012364            0.358                           0.017               0.000
   5012384            0.483                           0.017               0.000
   5012501             0.25                           0.017               0.000
   5012536            0.358                           0.017               0.000
   5012569            0.733                           0.017               0.000
   5012576            0.358                           0.017               0.000
   5012696             0.25                           0.017               0.000
   5012733            0.608                           0.017               0.000
   5012734             0.25                           0.017               0.000
   5012750            0.608                           0.017               0.000
   5012772            0.983                           0.017               0.000
   5012948            0.608                           0.017               0.000
   5013068            0.733                           0.017               0.000
   5013119             0.25                           0.017               0.000
   5013125            0.358                           0.017               0.000
   5013133             0.25                           0.017               0.000
   5013147            0.358                           0.017               0.000
   5013169            0.483                           0.017               0.000
   5013177            0.733                           0.017               0.000
   5013188            0.858                           0.017               0.000
   5013197            0.608                           0.017               0.000
   5013287            1.233                           0.017               0.000
   5013341            0.483                           0.017               0.000
   5013415            0.608                           0.017               0.000
   5014137             0.25                           0.017               0.000
   5014141            0.858                           0.017               0.000
   5014176             0.25                           0.017               0.000
   5014187            0.483                           0.017               0.000
   5021906            0.358                           0.017               0.000
   5036252             0.25                           0.017               0.233
   5036273             0.25                           0.017               0.108
   5036289             0.25                           0.017               0.233
   5036351             0.25                           0.017               0.000
   5036432             0.25                           0.017               0.233
   5036439             0.25                           0.017               0.233
   5036457             0.25                           0.017               0.233
   5036489             0.25                           0.017               0.358
   5036498             0.25                           0.017               0.000
   5036509             0.25                           0.017               0.000
   5036519             0.25                           0.017               0.000
   5036573             0.25                           0.017               0.358
   5036621             0.25                           0.017               0.233
   5036651             0.25                           0.017               0.358
   5036712             0.25                           0.017               0.000
   5036743             0.25                           0.017               0.000
   5036795             0.25                           0.017               0.000
   5036817             0.25                           0.017               0.000
   5036831             0.25                           0.017               0.233
   5036848             0.25                           0.017               0.000
   5036864             0.25                           0.017               0.000
   5036880             0.25                           0.017               0.000
   5036897             0.25                           0.017               0.000
   5036907             0.25                           0.017               0.108
   5056790             0.25                           0.017               0.233
   5056803             0.25                           0.017               0.000
   5056819             0.25                           0.017               0.358
   5056849             0.25                           0.017               0.358
   5056873             0.25                           0.017               0.358
   5056887             0.25                           0.017               0.358
   5056894             0.25                           0.017               0.233
   5056905             0.25                           0.017               0.000
   5056920             0.25                           0.017               0.233
   5056949             0.25                           0.017               0.233
   5056959             0.25                           0.017               0.358
   5056974             0.25                           0.017               0.233
   5056980             0.25                           0.017               0.108
   5056992             0.25                           0.017               0.108
   5057037             0.25                           0.017               0.108
   5057049             0.25                           0.017               0.000
   5057067             0.25                           0.017               0.108
   5057084             0.25                           0.017               0.000
   5057091             0.25                           0.017               0.233
   5057117             0.25                           0.017               0.483
   5057121             0.25                           0.017               0.000
   5057126             0.25                           0.017               0.358
   5073820             0.25                           0.017               0.358
   5073829             0.25                           0.017               0.233
   5073840             0.25                           0.017               0.608
   5073855             0.25                           0.017               0.483
   5073869             0.25                           0.017               0.358
   5073881             0.25                           0.017               0.358
   5073893             0.25                           0.017               0.000
   5073904             0.25                           0.017               0.358
   5073927             0.25                           0.017               0.233
   5073935             0.25                           0.017               0.000
   5073942             0.25                           0.017               0.358
   5073948             0.25                           0.017               0.108
   5073958             0.25                           0.017               0.000
   5073962             0.25                           0.017               0.358
   5073976             0.25                           0.017               0.233
   5073987             0.25                           0.017               0.000
   5073993             0.25                           0.017               0.233
   5074001             0.25                           0.017               0.483
   5074004             0.25                           0.017               0.483
   5074007             0.25                           0.017               0.000
   5074012             0.25                           0.017               0.483
   5074278             0.25                           0.017               0.000
   5074284             0.25                           0.017               0.358
   5074290             0.25                           0.017               0.000
   5074298             0.25                           0.017               0.108
   5074311             0.25                           0.017               0.000
   4875725             0.25                           0.017               0.000
   5006486             0.25                           0.017               0.000
   5008908             0.25                           0.017               0.108
   5008919             0.25                           0.017               0.108
   5011834             0.25                           0.017               0.108
   5012330             0.25                           0.017               0.000
   5015246             0.25                           0.017               0.000
   5015332             0.25                           0.017               0.000
   5018950             0.25                           0.017               0.000
   5026343             0.25                           0.017               0.000
   5029920             0.25                           0.017               0.000
   5032733             0.25                           0.017               0.000
   5035182             0.25                           0.017               0.233
   5036198             0.25                           0.017               0.000
   5036485             0.25                           0.017               0.000
   5044241             0.25                           0.017               0.108
   5045719             0.25                           0.017               0.000
   5048469             0.25                           0.017               0.000
   4996029             0.25                           0.017               0.233
   5005150             0.25                           0.017               0.000
   5012366             0.25                           0.017               0.000
   5013146             0.25                           0.017               0.108
   5019078             0.25                           0.017               0.108
   5019885             0.25                           0.017               0.000
   5025250             0.25                           0.017               0.108
   5028921             0.25                           0.017               0.000
   5034168             0.25                           0.017               0.000
   5037201             0.25                           0.017               0.108
   5042671             0.25                           0.017               0.108
   5045956             0.25                           0.017               0.000
   5047137             0.25                           0.017               0.000


   COUNT:     140
    WAC:      6.813708032
    WAM:      354.1470014
   WALTV:     78.81838773




<PAGE>


NASCOR
NMI / 1999-23  Exhibit F-3
30 YEAR FIXED RATE NON RELOCATION  LOANS


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

MORTGAGE                                             NMI
LOAN                                                 LOAN
NUMBER            SERVICER                           SELLER
- --------          -----------------------            ---------------------------
4844533           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5011786           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5011935           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012012           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012188           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012298           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012320           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012335           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012364           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012384           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012501           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012536           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012569           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012576           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012696           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012733           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012734           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012750           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012772           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5012948           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5013068           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5013119           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5013125           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5013133           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5013147           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5013169           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5013177           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5013188           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5013197           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5013287           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5013341           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5013415           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5014137           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5014141           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5014176           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5014187           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5021906           CITICORP MORTGAGE, INC.            CITICORP MORTGAGE, INC.
5036252           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036273           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036289           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036351           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036432           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036439           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036457           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036489           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036498           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036509           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036519           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036573           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036621           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036651           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036712           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036743           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036795           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036817           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036831           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036848           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036864           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036880           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036897           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5036907           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056790           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056803           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056819           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056849           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056873           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056887           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056894           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056905           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056920           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056949           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056959           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056974           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056980           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5056992           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5057037           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5057049           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5057067           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5057084           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5057091           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5057117           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5057121           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5057126           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073820           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073829           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073840           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073855           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073869           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073881           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073893           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073904           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073927           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073935           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073942           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073948           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073958           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073962           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073976           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073987           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5073993           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5074001           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5074004           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5074007           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5074012           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5074278           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5074284           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5074290           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5074298           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
5074311           FIRST UNION MORTGAGE CORP          FIRST UNION MORTGAGE CORP
4875725           FIRSTAR                            FIRSTAR
5006486           FIRSTAR                            FIRSTAR
5008908           FIRSTAR                            FIRSTAR
5008919           FIRSTAR                            FIRSTAR
5011834           FIRSTAR                            FIRSTAR
5012330           FIRSTAR                            FIRSTAR
5015246           FIRSTAR                            FIRSTAR
5015332           FIRSTAR                            FIRSTAR
5018950           FIRSTAR                            FIRSTAR
5026343           FIRSTAR                            FIRSTAR
5029920           FIRSTAR                            FIRSTAR
5032733           FIRSTAR                            FIRSTAR
5035182           FIRSTAR                            FIRSTAR
5036198           FIRSTAR                            FIRSTAR
5036485           FIRSTAR                            FIRSTAR
5044241           FIRSTAR                            FIRSTAR
5045719           FIRSTAR                            FIRSTAR
5048469           FIRSTAR                            FIRSTAR
4996029           HUNTINGTON MORTGAGE COMPANY        HUNTINGTON MORTGAGE COMPANY
5005150           HUNTINGTON MORTGAGE COMPANY        HUNTINGTON MORTGAGE COMPANY
5012366           HUNTINGTON MORTGAGE COMPANY        HUNTINGTON MORTGAGE COMPANY
5013146           HUNTINGTON MORTGAGE COMPANY        HUNTINGTON MORTGAGE COMPANY
5019078           HUNTINGTON MORTGAGE COMPANY        HUNTINGTON MORTGAGE COMPANY
5019885           HUNTINGTON MORTGAGE COMPANY        HUNTINGTON MORTGAGE COMPANY
5025250           HUNTINGTON MORTGAGE COMPANY        HUNTINGTON MORTGAGE COMPANY
5028921           HUNTINGTON MORTGAGE COMPANY        HUNTINGTON MORTGAGE COMPANY
5034168           HUNTINGTON MORTGAGE COMPANY        HUNTINGTON MORTGAGE COMPANY
5037201           HUNTINGTON MORTGAGE COMPANY        HUNTINGTON MORTGAGE COMPANY
5042671           HUNTINGTON MORTGAGE COMPANY        HUNTINGTON MORTGAGE COMPANY
5045956           HUNTINGTON MORTGAGE COMPANY        HUNTINGTON MORTGAGE COMPANY
5047137           HUNTINGTON MORTGAGE COMPANY        HUNTINGTON MORTGAGE COMPANY


COUNT:                                           140
WAC:                                     6.813708032
WAM:                                     354.1470014
WALTV:                                   78.81838773

<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 1999-25

            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 1999-25, 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 September 29, 1999 (the "Pooling and Servicing
Agreement") among the Trust  Administrator,  the Seller, the Master Servicer and
the United States Trust Company of New York, as Trustee.

( )   Promissory Note dated  ______________,  199__, in the  original  principal
      sum of $___________, made by ____________________, payable to, or endorsed
      to the order of, the Trustee.


( )   Mortgage   recorded   on   _____________________   as   instrument   no.
      ______________  in  the  County  Recorder's  Office  of  the  County  of
      ____________________,     State    of     _______________________     in
      book/reel/docket  ____________________ of official records at page/image
      ------------.


( )   Deed  of  Trust  recorded  on  ____________________  as  instrument  no.
      _________________  in the  County  Recorder's  Office  of the  County of
      ___________________,  State  of  _________________  in  book/reel/docket
      ____________________ of official records at page/image ____________.


( )   Assignment  of  Mortgage  or Deed of Trust to the  Trustee,  recorded on
      ______________________________  as instrument no.  ______________ in the
      County Recorder's Office of the County of ______________________,  State
      of  _____________________  in book/reel/docket  ____________________  of
      official records at page/image ____________.


( )   Other  documents,   including  any  amendments,   assignments  or  other
      assumptions of the Mortgage Note or Mortgage.

      ( ) ---------------------------------------------

      ( ) ---------------------------------------------

      ( ) ---------------------------------------------

      ( ) ---------------------------------------------

      The undersigned Master Servicer hereby acknowledges and agrees as follows:

            (1) The Master  Servicer  shall hold and  retain  possession  of the
      Documents in trust for the benefit of the Trustee, solely for the purposes
      provided in the Agreement.

            (2) The Master  Servicer  shall not cause or permit the Documents to
      become subject to, or encumbered by, any claim, liens,  security interest,
      charges,  writs of  attachment or other  impositions  nor shall the Master
      Servicer  assert  or seek to assert  any  claims or rights of setoff to or
      against the Documents or any proceeds thereof.

            (3) The Master  Servicer  shall  return the  Documents  to the Trust
      Administrator when the need therefor no longer exists, unless the Mortgage
      Loan  relating  to the  Documents  has been  liquidated  and the  proceeds
      thereof  have been  remitted  to the  Certificate  Account  and  except as
      expressly provided in the Agreement.

            (4) The Documents and any proceeds  thereof,  including any proceeds
      of proceeds,  coming into the possession or control of the Master Servicer
      shall  at  all  times  be   earmarked   for  the   account  of  the  Trust
      Administrator,  on behalf of the Trustee,  and the Master  Servicer  shall
      keep the Documents  and any proceeds  separate and distinct from all other
      property in the Master Servicer's possession, custody or control.


                                       NORWEST BANK MINNESOTA, NATIONAL
                                          ASSOCIATION



                                       By:  __________________________


                                       Title:  ________________________

Date: ________________, 19__



<PAGE>


                                    EXHIBIT H

                                          AFFIDAVIT    PURSUANT   TO   SECTION
                                          860E(e)(4)  OF THE INTERNAL  REVENUE
                                          CODE OF 1986,  AS  AMENDED,  AND FOR
                                          NON-ERISA INVESTORS

STATE OF          )
                  ) ss:
COUNTY OF         )

            [NAME OF OFFICER], being first duly sworn, deposes and says: 1. That
he  is  [Title  of  Officer]  of  [Name  of  Purchaser]  (the  "Purchaser"),   a
[description  of type of entity] duly  organized and existing  under the laws of
the [State of ] [United States], on behalf of which he makes this affidavit.  2.
That  the  Purchaser's  Taxpayer  Identification  Number  is [ ].  3.  That  the
Purchaser  is not a  "disqualified  organization"  within the meaning of Section
860E(e)(5),of the Internal Revenue Code of 1986, as amended (the "Code"),  or an
ERISA  Prohibited  Holder,  and will not be a "disqualified  organization" or an
ERISA Prohibited Holder, as of [date of transfer], and that the Purchaser is not
acquiring   Norwest   Asset   Securities   Corporation   Mortgage   Pass-Through
Certificates,   Series   1999-25,   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. 8. 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.  9. 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.  10. 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 1999-25, 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 1999-25
           CLASS [A-PO][B-1][B-2][B-3][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 1999-25, Class
[A-PO][B-1][B-2][B-3][B-4][B-5][B-6]        Certificates       (the       "Class
[A-PO][B-1][B-2][B-3][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  September  29, 1999 (the  "Pooling  and
Servicing Agreement") among Norwest Asset Securities Corporation, as seller (the
"Seller"), Norwest Bank Minnesota, National Association, as master servicer (the
"Master  Servicer"),  First Union  National  Bank, as trust  administrator  (the
"Trust  Administrator")  and the United  States  Trust  Company of New York,  as
trustee  (the  "Trustee"),  of Norwest  Asset  Securities  Corporation  Mortgage
Pass-Through Certificates, Series 1999-25.

            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-1][B-2][B-3][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-1][B-2][B-3][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-1][B-2][B-3][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-1][B-2][B-3][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-1][B-2][B-3][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-1][B-2][B-3][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-1][B-2][B-3][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-1][B-2][B-3][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-1][B-2][B-3][B-4][B-5][B-6] Certificates
other    than   in    connection    with   a    subsequent    sale   of    Class
[A-PO][B-1][B-2][B-3][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)  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-1][B-2][B-3][B-4][B-5][B-6]  Certificates  is in
compliance therewith.

            Section 3.  TRANSFER             OF             CLASS
[A-PO][B-1][B-2][B-3][B-4][B-5][B-6] CERTIFICATES.

            (a)___The      Purchaser      understands     that     the     Class
[A-PO][B-1][B-2][B-3][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-1][B-2][B-3][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-1][B-2][B-3][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-1][B-2][B-3][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-1][B-2][B-3][B-4][B-5][B-6]  Certificates bear a legend setting forth
the applicable restrictions on transfer.



<PAGE>




            IN WITNESS WHEREOF,  the undersigned has caused this Agreement to be
validly  executed by its duly  authorized  representative  as of the day and the
year first above written.


                                       [PURCHASER]



                                       By:  ______________________________



                                       Its:  ______________________________



<PAGE>



                                    EXHIBIT K

                                   [RESERVED]



<PAGE>



                                    EXHIBIT L

                              SERVICING AGREEMENTS

                  Norwest Mortgage, Inc. Servicing Agreement

             First Union Mortgage Corporation Servicing Agreement

                 Citicorp Mortgage, Inc. Servicing Agreement

                      Firstar Bank, NA Servicing Agreement

             The Huntington Mortgage Company 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 1999-25, Class
____ (the "Class B Certificates"). The Class B Certificates were issued pursuant
to a Pooling  and  Servicing  Agreement  dated as of  September  29,  1999 among
Norwest Asset  Securities  Corporation,  as seller (the "Seller"),  Norwest Bank
Minnesota,  National Association, as Master Servicer, First Union National Bank,
as Trust Administrator, and United States Trust Company of New York, as Trustee.
 intends to resell all of the Class B Certificates  directly to the Purchaser on
or promptly after the date hereof.

            In connection  with such sale,  the parties  hereto have agreed that
the  Company  will cause,  to the extent that the Company as Master  Servicer is
granted  such  authority  in  the  related  Servicing  Agreements,  the  related
servicers  (each a related  "Servicer"),  which service the Mortgage Loans which
comprise  the Trust  Estate  related to the above  referenced  series  under the
related servicing agreements (each a related "Servicing  Agreement"),  to engage
in certain special servicing procedures relating to foreclosures for the benefit
of the Purchaser, and that the Purchaser will deposit funds in a collateral fund
to cover any losses  attributable to such procedures as well as all advances and
costs in connection therewith, as set forth herein.

            In  consideration of the mutual  agreements  herein  contained,  the
receipt and  sufficiency of which are hereby  acknowledged,  the Company and the
Purchaser agree that the following  provisions  shall become effective and shall
be binding on and enforceable by the Company and the Purchaser:

                                    ARTICLE I

                                   DEFINITIONS

            Section 1.01      DEFINED TERMS.

            Whenever used in this  Agreement,  the following  words and phrases,
unless the context otherwise requires, shall have the following meanings:

            BUSINESS  DAY: Any day other than (i) a Saturday or a Sunday or (ii)
a day on which  banking  institutions  in the State of New York are  required or
authorized by law or executive order to be closed.

            COLLATERAL FUND: The fund  established and maintained  pursuant to
Section 3.01 hereof.

            COLLATERAL FUND PERMITTED INVESTMENTS: Either (i) obligations of, or
obligations fully guaranteed as to principal and interest by, the United States,
or any agency or instrumentality  thereof,  provided such obligations are backed
by the full faith and  credit of the United  States,  (ii) a money  market  fund
rated in the highest rating  category by a nationally  recognized  rating agency
selected by the Company,  (iii) cash,  (iv) mortgage  pass-through  certificates
issued or guaranteed by Government National Mortgage Association, FNMA or FHLMC,
(v) commercial paper (including both  non-interest-bearing  discount obligations
and interest-bearing  obligations payable on demand or on a specified date), the
issuer of which may be an affiliate  of the Company,  having at the time of such
investment a rating of at least A-1 by Standard & Poor's ("S&P") or at least D-1
by Duff & Phelps Credit Rating Co.  ("DCR") or (vi) demand and time deposits in,
certificates  of deposit of, any depository  institution or trust company (which
may be an affiliate of the  Company)  incorporated  under the laws of the United
States  of  America  or  any  state  thereof  and  subject  to  supervision  and
examination by federal and/or state banking authorities,  so long as at the time
of such investment  either (x) the long-term debt obligations of such depository
institution or trust company have a rating of at least AA by DCR or S&P, (y) the
certificate of deposit or other unsecured  short-term  debt  obligations of such
depository  institution or trust company have a rating of at least D-1 by DCR or
A-1 by S&P or (z) the  depository  institution  or trust  company is one that is
acceptable  to either DCR or S&P and,  for each of the  preceding  clauses  (i),
(iv), (v) and (vi), the maturity  thereof shall be not later than the earlier to
occur of (A) 30 days from the date of the  related  investment  and (B) the next
succeeding  Distribution  Date as defined in the related  Pooling and  Servicing
Agreement.

            COMMENCEMENT  OF  FORECLOSURE:  The first official  action  required
under local law in order to commence  foreclosure  proceedings  or to schedule a
trustee's  sale under a deed of trust,  including (i) in the case of a mortgage,
any filing or service of process  necessary to commence an action to  foreclose,
or (ii) in the case of a deed of  trust,  posting,  the  publishing,  filing  or
delivery of a notice of sale, but not including in either case (x) any notice of
default,  notice of intent to foreclose or sell or any other action prerequisite
to  the  actions  specified  in (i) or  (ii)  above,  (y)  the  acceptance  of a
deed-in-lieu  of foreclosure  (whether in connection  with a sale of the related
property or otherwise) or (z) initiation and completion of a short pay-off.

            CURRENT APPRAISAL: With respect to any Mortgage Loan as to which the
Purchaser has made an Election to Delay Foreclosure, an appraisal of the related
Mortgaged  Property  obtained  by the  Purchaser  at its  own  expense  from  an
independent  appraiser  (which  shall  not be an  affiliate  of  the  Purchaser)
acceptable to the Company as nearly contemporaneously as practicable to the time
of  the  Purchaser's  election,   prepared  based  on  the  Company's  customary
requirements for such appraisals.

            ELECTION TO DELAY  FORECLOSURE:  Any election by the  Purchaser to
delay  the  Commencement  of  Foreclosure,  made in  accordance  with  Section
2.02(b).

            ELECTION TO  FORECLOSE:  Any election by the  Purchaser to proceed
with the Commencement of Foreclosure, made in accordance with Section 2.03(a).

            MONTHLY  ADVANCES:  Principal and interest  advances and servicing
advances including costs and expenses of foreclosure.

            REQUIRED  COLLATERAL FUND BALANCE:  As of any date of determination,
an amount  equal to the  aggregate  of all  amounts  previously  required  to be
deposited in the Collateral Fund pursuant to Section  2.02(d) (after  adjustment
for all  withdrawals  and  deposits  pursuant  to Section  2.02(e))  and Section
2.03(b) (after  adjustment for all withdrawals and deposits  pursuant to Section
2.03(c)) and Section 3.02 to be reduced by all withdrawals therefrom pursuant to
Section 2.02(g) and Section 2.03(d).

            Section 1.02      DEFINITIONS INCORPORATED BY REFERENCE.

            All capitalized  terms not otherwise defined in this Agreement shall
have the meanings assigned in the Pooling and Servicing Agreement.

                                   ARTICLE II

                          SPECIAL SERVICING PROCEDURES

            Section 2.01      REPORTS AND NOTICES.

            (a) In  connection  with the  performance  of its  duties  under the
Pooling and  Servicing  Agreement  relating to the  realization  upon  defaulted
Mortgage  Loans,  the Company as Master  Servicer shall provide to the Purchaser
the following notices and reports:

            (i) Within  five  Business  Days after  each  Distribution  Date (or
      included in or with the monthly statements to Certificateholders  pursuant
      to the Pooling and Servicing Agreement), the Company, shall provide to the
      Purchaser a report,  using the same  methodology  and  calculations in its
      standard servicing reports,  indicating for the Trust Estate the number of
      Mortgage  Loans that are (A) thirty days,  (B) sixty days, (C) ninety days
      or more  delinquent or (D) in  foreclosure,  and  indicating for each such
      Mortgage Loan the loan number and outstanding principal balance.

            (ii) Prior to the Commencement of Foreclosure in connection with any
      Mortgage  Loan, the Company shall cause (to the extent that the Company as
      Master  Servicer  is  granted  such  authority  in the  related  Servicing
      Agreement)  the Servicer to provide the  Purchaser  with a notice (sent by
      telecopier)  of such proposed and imminent  foreclosure,  stating the loan
      number and the aggregate amount owing under the Mortgage Loan. Such notice
      may be  provided  to the  Purchaser  in the  form of a copy of a  referral
      letter from such Servicer to an attorney  requesting  the  institution  of
      foreclosure.

            (b) If  requested  by the  Purchaser,  the  Company  shall cause the
Servicer  (to the extent  that the Company as Master  Servicer  is granted  such
authority in the related  Servicing  Agreement) to make its servicing  personnel
available  (during  their  normal  business  hours)  to  respond  to  reasonable
inquiries,  by phone or in writing by facsimile,  electronic,  or overnight mail
transmission,  by the Purchaser in connection  with any Mortgage Loan identified
in a report under  subsection (a) (i) (B), (a) (i) (C), (a) (i) (D), or (a) (ii)
which has been given to the Purchaser;  provided,  that (1) the related Servicer
shall only be required to provide  information that is readily accessible to its
servicing personnel and is  non-confidential  and (2) the related Servicer shall
respond   within  five   Business   Days  orally  or  in  writing  by  facsimile
transmission.

            (c) In  addition  to the  foregoing,  the  Company  shall  cause the
Servicer  (to the extent  that the Company as Master  Servicer  is granted  such
authority in the related  Servicing  Agreement) to provide to the Purchaser such
information as the Purchaser may reasonably request provided, however, that such
information  is consistent  with normal  reporting  practices,  concerning  each
Mortgage  Loan that is at least ninety days  delinquent  and each  Mortgage Loan
which has become  real estate  owned,  through  the final  liquidation  thereof;
provided,   that  the  related  Servicer  shall  only  be  required  to  provide
information  that  is  readily  accessible  to its  servicing  personnel  and is
non-confidential  provided,  however,  that the  Purchaser  will  reimburse  the
Company and the related Servicer for any out of pocket expenses.

            Section 2.02      PURCHASER'S   ELECTION  TO  DELAY  FORECLOSURE
PROCEEDINGS.

            (a) The  Purchaser  shall be deemed to direct the  Company to direct
(to the extent that the Company as Master  Servicer is granted such authority in
the related Servicing Agreement) the related Servicer that in the event that the
Company does not receive written notice of the Purchaser's  election pursuant to
subsection (b) below within 24 hours (exclusive of any intervening  non-Business
Days) of  transmission  of the notice provided by the Company under Section 2.01
(a) (ii)  subject to  extension  as set forth in Section  2.02(b),  the  related
Servicer may proceed with the  Commencement  of  Foreclosure  in respect of such
Mortgage Loan in accordance with its normal foreclosure policies without further
notice  to the  Purchaser.  Any  foreclosure  that  has  been  initiated  may be
discontinued  (i) without  notice to the Purchaser if the Mortgage Loan has been
brought  current or if a refinancing  or  prepayment  occurs with respect to the
Mortgage  Loan  (including  by means of a short  payoff  approved by the related
Servicer) or (ii) if the related Servicer has reached the terms of a forbearance
agreement  with the  borrower.  In the latter  case,  the related  Servicer  may
complete such forbearance agreement unless instructed otherwise by the Purchaser
within two Business Days notification.

            (b) In  connection  with any  Mortgage  Loan with respect to which a
notice under Section 2.01(a)(ii) has been given to the Purchaser,  the Purchaser
may elect to instruct  the  Company to cause,  to the extent that the Company as
Master  Servicer is granted such authority in the related  Servicing  Agreement,
the related Servicer to delay the Commencement of Foreclosure until such time as
the  Purchaser  determines  that  the  related  Servicer  may  proceed  with the
Commencement of  Foreclosure.  Such election must be evidenced by written notice
received  within 24 hours  (exclusive of any intervening  non-Business  Days) of
transmission  of the notice  provided by the Company under Section  2.01(a)(ii).
Such 24 hour period  shall be extended  for no longer  than an  additional  four
Business Days after the receipt of the  information  if the  Purchaser  requests
additional information related to such foreclosure;  provided, however, that the
Purchaser  will have at least  one  Business  Day to  respond  to any  requested
additional  information.  Any such additional information shall be provided only
to the extent it (i) is not confidential in nature and (ii) is obtainable by the
related  Servicer  from  existing  reports,  certificates  or  statements  or is
otherwise readily  accessible to its servicing  personnel.  The Purchaser agrees
that it has no right to deal with the mortgagor during such period.  However, if
such servicing activities include acceptance of a deed-in-lieu of foreclosure or
short  payoff,  the  Purchaser  will be notified and given two Business  Days to
respond.

            (c) With respect to any Mortgage  Loan as to which the Purchaser has
made an Election to Delay  Foreclosure,  the  Purchaser  shall  obtain a Current
Appraisal  as soon as  practicable,  but in no event more than 15 business  days
thereafter, and shall provide the Company with a copy of such Current Appraisal.

            (d)  Within  two  Business  Days of  making  any  Election  to Delay
Foreclosure,  the  Purchaser  shall remit by wire  transfer to the Company,  for
deposit in the Collateral Fund, an amount,  as calculated by the Company,  equal
to the sum of (i) 125% of the  greater  of the unpaid  principal  balance of the
Mortgage  Loan and the  value  shown in the  Current  Appraisal  referred  to in
subsection  (c) above (or, if such Current  Appraisal has not yet been obtained,
the Company's  estimate  thereof,  in which case the required deposit under this
subsection  shall be adjusted upon obtaining such Current  Appraisal),  and (ii)
three months' interest on the Mortgage Loan at the applicable  Mortgage Interest
Rate.  If any  Election to Delay  Foreclosure  extends for a period in excess of
three  months  (such  excess  period  being  referred  to herein as the  "Excess
Period"), within two Business Days the Purchaser shall remit by wire transfer in
advance to the  Company for  deposit in the  Collateral  Fund the amount of each
additional month's interest, as calculated by the Company,  equal to interest on
the  Mortgage  Loan at the  applicable  Mortgage  Interest  Rate for the  Excess
Period. The terms of this Agreement will no longer apply to the servicing of any
Mortgage  Loan upon the  failure of the  Purchaser  to deposit  any of the above
amounts  relating to the Mortgage  Loan within two Business Days of the Election
to Delay  Foreclosure  or within two Business  Days of the  commencement  of the
Excess Period subject to Section 3.01.

            (e) With respect to any Mortgage  Loan as to which the Purchaser has
made an  Election  to Delay  Foreclosure,  the  Company  may  withdraw  from the
Collateral  Fund from time to time amounts  necessary  to reimburse  the related
Servicer for all related Monthly  Advances and Liquidation  Expenses  thereafter
made by such Servicer in accordance with the Pooling and Servicing Agreement and
the  related  Servicing  Agreement.  To the  extent  that the amount of any such
Liquidation  Expenses is determined by the Company based on estimated costs, and
the actual  costs are  subsequently  determined  to be higher,  the  Company may
withdraw the additional  amount from the Collateral  Fund. In the event that the
Mortgage Loan is brought current by the mortgagor and the foreclosure  action is
discontinued,  the  amounts  so  withdrawn  from the  Collateral  Fund  shall be
redeposited if and to the extent that  reimbursement  therefor from amounts paid
by the  mortgagor  is not  prohibited  pursuant  to the  Pooling  and  Servicing
Agreement  or the related  Servicing  Agreement,  applicable  law or the related
mortgage note. Except as provided in the preceding  sentence,  amounts withdrawn
from the  Collateral  Fund to cover Monthly  Advances and  Liquidation  Expenses
shall not be redeposited  therein or otherwise  reimbursed to the Purchaser.  If
and when any such Mortgage Loan is brought current by the mortgagor, all amounts
remaining  in the  Collateral  Fund in  respect  of such  Mortgage  Loan  (after
adjustment  for  all  permitted   withdrawals  and  deposits  pursuant  to  this
subsection) shall be released to the Purchaser.

            (f) With respect to any Mortgage  Loan as to which the Purchaser has
made an Election to Delay  Foreclosure,  the related  Servicer shall continue to
service the Mortgage Loan in accordance  with its  customary  procedures  (other
than the delay in Commencement of Foreclosure as provided  herein).  If and when
the Purchaser  shall notify the Company that it believes that it is  appropriate
to do so, the related Servicer may proceed with the Commencement of Foreclosure.
In any event,  if the Mortgage  Loan is not brought  current by the mortgagor by
the time the loan becomes 6 months delinquent, the Purchaser's election shall no
longer be effective  and at the  Purchaser's  option,  either (i) the  Purchaser
shall  purchase  the Mortgage  Loan from the related  Trust Estate at a purchase
price equal to the fair market  value as shown on the Current  Appraisal,  to be
paid by (x) applying any balance in the Collateral Fund to such to such purchase
price, and (y) to the extent of any deficiency,  by wire transfer of immediately
available  funds from the  Purchaser  to the  Company for deposit in the related
Certificate  Account;  or (ii)  the  related  Servicer  shall  proceed  with the
Commencement of Foreclosure.

            (g)  Upon  the  occurrence  of a  liquidation  with  respect  to any
Mortgage  Loan as to which the Purchaser  made an Election to Delay  Foreclosure
and as to  which  the  related  Servicer  proceeded  with  the  Commencement  of
Foreclosure in accordance with subsection (f) above, the Company shall calculate
the amount, if any, by which the value shown on the Current  Appraisal  obtained
under  subsection  (c) exceeds the actual  sales price  obtained for the related
Mortgaged Property (net of Liquidation  Expenses and accrued interest related to
the extended  foreclosure  period), and the Company shall withdraw the amount of
such excess from the Collateral  Fund,  shall remit the same to the Trust Estate
and in its  capacity as Master  Servicer  shall apply such amount as  additional
Liquidation  Proceeds  pursuant to the Pooling and  Servicing  Agreement.  After
making such withdrawal,  all amounts remaining in the Collateral Fund in respect
of such  Mortgage  Loan (after  adjustment  for all  permitted  withdrawals  and
deposits pursuant to this Agreement) shall be released to the Purchaser.

            Section 2.03      PURCHASER'S  ELECTION TO COMMENCE  FORECLOSURE
PROCEEDINGS.

            (a) In  connection  with any Mortgage  Loan  identified  in a report
under Section 2.01(a)(i)(B),  the Purchaser may elect to instruct the Company to
cause,  to the extent  that the  Company  as Master  Servicer  is  granted  such
authority in the related  Servicing  Agreement,  the related Servicer to proceed
with the Commencement of Foreclosure as soon as practicable.  Such election must
be evidenced by written  notice  received by the Company by 5:00 p.m.,  New York
City time, on the third Business Day following the delivery of such report under
Section 2.01(a)(i).

            (b) Within two Business  Days of making any  Election to  Foreclose,
the Purchaser shall remit to the Company, for deposit in the Collateral Fund, an
amount,  as  calculated  by the  Company,  equal to 125% of the  current  unpaid
principal balance of the Mortgage Loan and three months interest on the Mortgage
Loan at the  applicable  Mortgage  Interest  Rate. If and when any such Mortgage
Loan is brought current by the mortgagor,  all amounts in the Collateral Fund in
respect of such Mortgage Loan (after  adjustment  for all permitted  withdrawals
and deposits  pursuant to this Agreement)  shall be released to the Purchaser if
and to the extent that reimbursement therefor from amounts paid by the mortgagor
is not prohibited pursuant to the Pooling and Servicing Agreement or the related
Servicing  Agreement,  applicable law or the related mortgage note. The terms of
this  Agreement  will no longer apply to the servicing of any Mortgage Loan upon
the  failure of the  Purchaser  to deposit  the above  amounts  relating  to the
Mortgage Loan within two Business  Days of the Election to Foreclose  subject to
Section 3.01.

            (c) With respect to any Mortgage  Loan as to which the Purchaser has
made an Election to Foreclose,  the related  Servicer  shall continue to service
the  Mortgage  Loan in  accordance  with its  customary  procedures  (other than
Commencement of Foreclosure as provided herein).  In connection  therewith,  the
Company shall have the same rights to make  withdrawals for Monthly Advances and
Liquidations  Expenses from the  Collateral  Fund as are provided  under Section
2.02(e), and the Company shall make reimbursements thereto to the limited extent
provided under such subsection in accordance with its customary procedures.  The
Company shall not be required to cause, to the extent that the Company as Master
Servicer is granted  such  authority  in the related  Servicing  Agreement,  the
related Servicer to proceed with the Commencement of Foreclosure if (i) the same
is stayed as a result of the  mortgagor's  bankruptcy or is otherwise  barred by
applicable  law, or to the extent that all legal  conditions  precedent  thereto
have not yet been complied with, or (ii) the Company  believes there is a breach
of representations or warranties by the Company, a Servicer,  or a Seller, which
may result in a repurchase or  substitution  of such Mortgage Loan, or (iii) the
Company or related Servicer  reasonably  believes the Mortgaged  Property may be
contaminated with or affected by hazardous wastes or hazardous  substances (and,
without  limiting  the  related   Servicer's  right  not  to  proceed  with  the
Commencement of Foreclosure, the Company supplies the Purchaser with information
supporting  such  belief).  Any  foreclosure  that  has  been  initiated  may be
discontinued  (x) without  notice to the Purchaser if the Mortgage Loan has been
brought  current or if a refinancing  or  prepayment  occurs with respect to the
Mortgage Loan  (including by means of a short payoff  approved by the Purchaser)
or (y) with  notice to the  Purchaser  if the related  Servicer  has reached the
terms of a forbearance  agreement unless  instructed  otherwise by the Purchaser
within two Business Days of such  notification.  Any such  instruction  shall be
based upon a decision that such forbearance  agreement is not in conformity with
reasonable servicing practices.

            (d)  Upon  the  occurrence  of a  liquidation  with  respect  to any
Mortgage Loan as to which the Purchaser  made an Election to Foreclose and as to
which the related  Servicer  proceeded with the  Commencement  of Foreclosure in
accordance with subsection (c) above, the Company shall calculate the amount, if
any, by which the unpaid  principal  balance of the Mortgage Loan at the time of
liquidation  (plus  all  unreimbursed   interest  and  servicing   advances  and
Liquidation  Expenses  in  connection  therewith  other than those paid from the
Collateral  Fund)  exceeds  the actual  sales  price  obtained  for the  related
Mortgaged  Property,  and the Company  shall  withdraw the amount of such excess
from the  Collateral  Fund,  shall remit the same to the Trust Estate and in its
capacity as Master  Servicer  shall apply such amount as additional  Liquidation
Proceeds  pursuant to the Pooling and  Servicing  Agreement.  After  making such
withdrawal,  all amounts  remaining in the Collateral Fund (after adjustment for
all  withdrawals  and  deposits  pursuant to  subsection  (c) in respect of such
Mortgage Loan shall be released to the Purchaser.

            Section 2.04      TERMINATION.

            (a) With respect to all Mortgage Loans included in the Trust Estate,
the Purchaser's  right to make any Election to Delay Foreclosure or any Election
to Foreclose and the Company's  obligations  under Section 2.01 shall  terminate
(i) at such time as the Principal  Balance of the Class B Certificates  has been
reduced  to  zero,  (ii) if the  greater  of (x) 43% (or such  lower  or  higher
percentage  that  represents  the  related  Servicer's  actual  historical  loss
experience  with respect to the Mortgage Loans in the related pool as determined
by the Company) of the aggregate  principal  balance of all Mortgage  Loans that
are in  foreclosure or are more than 90 days  delinquent on a contractual  basis
and REO  properties  or (y) the  aggregate  amount  that the  Company  estimates
through the normal servicing  practices of the related Servicer will be required
to be withdrawn  from the  Collateral  Fund with respect to Mortgage Loans as to
which the Purchaser has made an Election to Delay  Foreclosure or an Election to
Foreclosure,  exceeds  (z) the  then-current  principal  balance  of the Class B
Certificates,  (iii) upon any transfer by the  Purchaser of any interest  (other
than the minority interest therein,  but only if the transferee provides written
acknowledgment  to the Company of the Purchaser's  right hereunder and that such
transferee will have no rights  hereunder) in the Class B Certificates  (whether
or not such transfer is registered  under the Pooling and Servicing  Agreement),
including any such transfer in connection with a termination of the Trust Estate
or (iv) upon any breach of the terms of this Agreement by the Purchaser.

            (b)  Except  as  set  forth  in  2.04(a),  this  Agreement  and  the
respective  rights,  obligations and  responsibilities  of the Purchaser and the
Company  hereunder  shall  terminate  upon the  later to occur of (i) the  final
liquidation  of the  last  Mortgage  Loan as to  which  the  Purchaser  made any
Election to Delay Foreclosure or any Election to Foreclose and the withdrawal of
all remaining  amounts in the  Collateral  Fund as provided  herein and (ii) ten
Business Days' notice.  The  Purchaser's  right to make an election  pursuant to
Section 2.02 or Section 2.03 hereof with respect to a particular  Mortgage  Loan
shall terminate if the Purchaser fails to make any deposit required  pursuant to
Section  2.02(d) or 2.03(b) or if the Purchaser  fails to make any other deposit
to the Collateral Fund pursuant to this Agreement.

                                   ARTICLE III

                       COLLATERAL FUND; SECURITY INTEREST

            Section 3.01      COLLATERAL FUND.

            Upon receipt from the Purchaser of the initial amount required to be
deposited  in the  Collateral  Fund  pursuant to Article  II, the Company  shall
establish and maintain with Bankers Trust Company as a segregated account on its
books and records an account (the  "Collateral  Fund"),  entitled  "Norwest Bank
Minnesota,  National  Association,  as  Master  Servicer,  for  the  benefit  of
registered holders of Norwest Asset Securities Corporation Mortgage Pass-Through
Certificates, Series 1999-25. 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)   in 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:  _______________________________



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