NORWEST ASSET SEC CORP MORT PASS THR CERT SER 1997 17 TRUST
8-K, 1998-04-14
ASSET-BACKED SECURITIES
Previous: BRIGHTSTAR INFORMATION TECHNOLOGY GROUP INC, S-1/A, 1998-04-14
Next: DETAILS INC, 10-K405, 1998-04-14




                       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:  October 30, 1997
(Date of earliest event reported)
Commission File No. 333-21263




                      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 October 30, 1997,  Norwest  Asset  Securities  Corporation,  a Delaware
corporation (the "Registrant"),  sold Mortgage Pass-Through Certificates, Series
1997-17, Class A-1, Class A-2, Class A-3, Class A-4, Class A-5, Class A-6, Class
A-7, Class A-9, Class A-10, Class A-11, Class A-12, Class A-R, Class A-LR, Class
M, Class B-1 and Class B-2 (the  "Offered  Certificates"),  having an  aggregate
original principal balance of $301,326,200. The Offered Certificates were issued
pursuant to a Pooling and  Servicing  Agreement,  dated as of October 30,  1997,
among the Registrant,  Norwest Bank Minnesota,  National Association,  as master
servicer  (the  "Master  Servicer" or "Norwest  Bank") and First Union  National
Bank,  as  trustee  (the  "Agreement"),  a copy of which is filed as an  exhibit
hereto.  Mortgage Pass-Through  Certificates,  Series 1997-17,  Class A-8, Class
B-3, Class B-4 and Class B-5, having an aggregate  initial  principal balance of
$48,177,582.19 (the "Private Certificates" and, together with the Class A-PO and
Class A-WIO Certificates and Offered  Certificates,  the  "Certificates"),  were
also issued pursuant to the Agreement.

      As of the date of initial issuance,  the Offered Certificates evidenced an
approximate  86.24%  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,
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations.  The  remaining  undivided  interests  in  the  Trust  Estate  are
evidenced  by  the  Class  A-PO  and  Class  A-WIO   Certificates   and  Private
Certificates,  distributions on which (other than with respect to the Class A-8,
Class A-PO and Class A-WIO  Certificates)  are  subordinated to distributions on
the Offered Certificates.

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

      An  election  will be made to treat the Trust  Estate  as two  REMICs  for
federal  income tax purposes (the  "Upper-Tier  REMIC" and  "Lower-Tier  REMIC,"
respectively).  The Class A-1, Class A-2, Class A-3, Class A-4, Class A-5, Class
A-6 and Class A-7 Certificates,  the Class A-8 PO Component, Class A-8 Scheduled
Accrual Component,  Class A-8 IO A Component, Class A-8 IO B Component and Class
A-8 IO C Component,  the Class A-9, Class A-10,  Class A-11,  Class A-12,  Class
A-PO, Class A-WIO, Class M, Class B-1, Class B-2, Class B-3, Class B-4 and Class
B-5 Certificates will be treated as "regular  interests" in the Upper-Tier REMIC
and the Class A-R and Class A-LR  Certificate  will be treated as the  "residual
interests" in the Upper-Tier REMIC and Lower-Tier REMIC, respectively.


<PAGE>


ITEM 7.  Financial Statements and Exhibits
         (c) Exhibits

Item 601(a)
of Regulation S-K
Exhibit No.                              Description
- -----------------                        -----------
   (EX-4)                                Pooling    and    Servicing
                                         Agreement,   dated   as  of
                                         October  30,  1997,   among
                                         Norwest  Asset   Securities
                                         Corporation,  Norwest  Bank
                                         Minnesota,         National
                                         Association and First Union
                                         National Bank, as trustee.



<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
October 30, 1997

                                            /s/ Patrick Greene
                                            -------------------
                                            Patrick Greene
                                            Assistant Vice President




<PAGE>




                                INDEX TO EXHIBITS



                                                                  Paper (P) or
Exhibit No.       Description                                     Electronic (E)
- ----------        ---------------------------------------         --------------
   (EX-4)         Pooling and Servicing                                 E
                  Agreement, dated as of October 30, 1997
                  among Norwest Asset Securities
                  Corporation, Norwest Bank Minnesota,
                  National Association and First Union
                  National Bank, as trustee.





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





                      NORWEST ASSET SECURITIES CORPORATION

                                    (Seller)

                                       and

                  NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION

                                (Master Servicer)

                                       and

                            FIRST UNION NATIONAL BANK

                                    (Trustee)



                         POOLING AND SERVICING AGREEMENT

                          Dated as of October 30, 1997

                                 $350,005,093.03




                       Mortgage Pass-Through Certificates
                                 Series 1997-17





- --------------------------------------------------------------------------------
<PAGE>

                                TABLE OF CONTENTS



                                    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 Trustee.
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 Trustee.
Section 3.04.  Trustee to Cooperate;  Release of Owner Mortgage Loan Files.
Section 3.05.  Reports to the Trustee; 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.  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 Trustee 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 Transfer and Exchange 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 and Seller by Master Servicer.

                                   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.  Trustee to Act; Appointment of Successor.
Section 7.06.  Notification to Certificateholders.

                                  ARTICLE VIII

                             CONCERNING THE TRUSTEE

Section 8.01.  Duties of Trustee.
Section 8.02.  Certain Matters Affecting the Trustee.
Section 8.03.  Trustee not Required to Make Investigation.
Section 8.04.  Trustee not Liable for Certificates or Mortgage Loans.
Section 8.05.  Trustee 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.

                                   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 Class A Subclass Principal Balances.
Section 11.06.  Original Class A Non-PO Principal Balance.
Section 11.07.  Original Class A-4 Notional Amount.
Section 11.08.   Original Component Principal Balance.
Section 11.09.  Original Subordinated Percentage.
Section 11.10.  Original Class M Percentage.
Section 11.11.  Original Class M Principal Balance.
Section 11.12.  Original Class M Fractional Interest.
Section 11.13.  Original Class B-1 Percentage.
Section 11.14.  Original Class B-2 Percentage.
Section 11.15.  Original Class B-3 Percentage.
Section 11.16.  Original Class B-4 Percentage.
Section 11.17.  Original Class B-5 Percentage.
Section 11.18.  Original Class B Principal Balance.
Section 11.19.  Original Class B Subclass Principal Balances.
Section 11.20.  Original Class B-1 Fractional Interest.
Section 11.21.  Original Class B-2 Fractional Interest.
Section 11.22.  Original Class B-3 Fractional Interest.
Section 11.23.  Original Class B-4 Fractional Interest.
Section 11.24.  Closing Date.
Section 11.25.  Right to Purchase.
Section 11.26.  Wire Transfer Eligibility.
Section 11.27.  Single Certificate.
Section 11.28.  Servicing Fee Rate.
Section 11.29.  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-5   -     Form of Face of Class A-5  Certificate  
EXHIBIT A-6   -     Form of Face of Class A-6  Certificate
EXHIBIT A-7   -     Form of Face of Class A-7  Certificate  
EXHIBIT A-8   -     Form of Face of Class A-8  Certificate  
EXHIBIT A-9   -     Form of Face of Class A-9  Certificate
EXHIBIT A-10  -     Form of Face of Class A-10  Certificate  
EXHIBIT A-11  -     Form of Face of Class A-11  Certificate  
EXHIBIT A-12  -     Form of Face of Class A-12 Certifiacte  
EXHIBIT A-PO  -     Form of Face of Class A-PO Certificate 
EXHIBIT A-WIO -     Form of Face of Class A-WIO  Certificate  
EXHIBIT A-R   -     Form of Face of Class A-R Certificate  
EXHIBIT A-LR  -     Form of Face of Class A-LR  Certificate  
EXHIBIT B-1   -     Form of Face of Class B-1 Certificate  
EXHIBIT B-2   -     Form of Face of Class B-2 Certificate  
EXHIBIT B-3   -     Form of Face of Class B-3 Certificate 
EXHIBIT B-4   -     Form of Face of Class B-4 Certificate  
EXHIBIT B-5   -     Form of Face of Class B-5 Certificate  
EXHIBIT C     -     Form of Face of Class M Certificate 
EXHIBIT D     -     Form of Reverse of Series 1997-17  Certificates  
EXHIBIT E     -     Custodial Agreement 
EXHIBIT F-1   -     Schedule of Mortgage  Loans  Serviced by Norwest
                       Mortgage from  locations other than Frederick, Maryland 
EXHIBIT F-2   -     Schedule of Mortgage Loans Serviced
                       by Norwest  Mortgage in  Frederick  Maryland  
EXHIBIT F-3   -     Schedule of Mortgage Loans Serviced by Other  Servicers  
EXHIBIT G     -     Request for Release  
EXHIBIT H     -     Affidavit Pursuant to Section 860E(e)(4) of the Internal
                       Revenue Code of 1986, as amended, and for Non-ERISA
                       Investors
EXHIBIT I     -     Letter from Transferor of Residual Certificates
EXHIBIT J     -     Transferee's Letter (Class [A-8] [A-PO][A-WIO][B-3] [B-4]
                       [B-5] Certificates)
EXHIBIT K     -     Transferee's Letter (Class [M] [B-1] [B-2] Certificates)
EXHIBIT L     -     Servicing Agreements
EXHIBIT M     -     Form of Special Servicing Agreement



<PAGE>

      This  Pooling  and  Servicing  Agreement,  dated as of  October  30,  1997
executed  by NORWEST  ASSET  SECURITIES  CORPORATION,  as Seller,  NORWEST  BANK
MINNESOTA,  NATIONAL  ASSOCIATION,  as Master  Servicer and FIRST UNION NATIONAL
BANK, as Trustee.


                                WITNESSETH THAT:

      In consideration of the mutual agreements  herein  contained,  the Seller,
the Master Servicer and the Trustee 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.

      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 the Class M
Certificates  or any Class B  Subclass,  the greater of (A) zero and (B) (i) the
principal  balance of such Class or Subclass  with respect to such  Distribution
Date minus (ii) the  Adjustment  Amount for such  Distribution  Date less,  with
respect to the Class M  Certificates,  the Class B  Principal  Balance  or, with
respect to any Class B Subclass, the Class B Subclass Principal Balances for any
Class B Subclasses with higher numerical designations.

      Adjustment  Amount:  For any Distribution Date, the difference between (A)
the sum of the Class A Principal Balance,  Class M 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,  Class M 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)(i)
for such  Distribution Date without regard to the provisos in the definitions of
Class M Optimal Principal Amount,  Class B-1 Optimal Principal Amount, Class B-2
Optimal Principal Amount,  Class B-3 Optimal Principal Amount, Class B-4 Optimal
Principal Amount and Class B-5 Optimal Principal Amount.

      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 Trustee
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 Trustee in writing that such  Servicer is
diligently  pursuing  any  remedies  that  may  exist  in  connection  with  the
representations  and  warranties  made  regarding the related  Mortgage Loan and
either (A) the related  Mortgage  Loan is not in default with regard to payments
due  thereunder or (B)  delinquent  payments of principal and interest under the
related  Mortgage  Loan  and  any  premiums  on any  applicable  primary  hazard
insurance  policy and any related  escrow  payments in respect of such  Mortgage
Loan are being  advanced  on a current  basis by such  Servicer  without  giving
effect to any Debt Service Reduction.

      Bankruptcy  Loss Amount:  As of any  Distribution  Date prior to the first
anniversary of the Cut-Off Date, the Bankruptcy  Loss Amount will equal $100,000
minus the aggregate amount of Bankruptcy  Losses allocated solely to the Class B
Certificates  or,  following the  reduction of the Class B Principal  Balance to
zero,  solely to the Class M  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  or,
following the reduction of the Class B Principal  Balance to zero, solely to the
Class M  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 of the  Class  A-1  Certificates,  Class A-2
Certificates,   Class  A-3  Certificates,  Class  A-5  Certificates,  Class  A-6
Certificates,  Class  A-7  Certificates,  Class  A-9  Certificates,  Class  A-10
Certificates,  Class A-11  Certificates or Class A-12  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,  Class M 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 Trustee.

      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 (i) variations
in the Percentage Interest evidenced thereby and (ii) in the case of the Class A
Certificates  and Class B Certificates,  variations in Subclass  designation and
other Subclass characteristics.

      Class A  Certificate:  Any one of the  Class A-1  Certificates,  Class A-2
Certificates,   Class  A-3  Certificates,  Class  A-4  Certificates,  Class  A-5
Certificates,   Class  A-6  Certificates,  Class  A-7  Certificates,  Class  A-8
Certificates,  Class A-9  Certificates,  Class  A-10  Certificates,  Class  A-11
Certificates,  Class A-12  Certificates,  Class A-PO  Certificates,  Class A-WIO
Certificates, Class A-R Certificate or Class A-LR Certificate.

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

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

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

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

      Class A Loss Denominator: As to any Determination Date, an amount equal to
the  sum of (i)  the  Class  A  Subclass  Principal  Balances  of  the  Class  A
Certificates  (other  than the Class A-8 and Class A-9  Certificates),  (ii) the
Component  Principal Balance of the Class A-8 PO Component,  (iii) the lesser of
the Component Principal Balance of the Class A-8 Scheduled Accrual Component and
the Original  Component  Principal  Balance of the Class A-8  Scheduled  Accrual
Component and (iv) the lesser of the Class A Subclass  Principal  Balance of the
Class A-9  Certificates and the Original Class A Subclass  Principal  Balance of
the Class A-9 Certificates.

      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 sum
of the Class A Subclass Unpaid Interest Shortfalls for each Class A Subclass 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
         Servicer,  the  Master  Servicer  or the  Trustee  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 Class A Subclasses  pursuant to
Paragraph third clause (A) of Section 4.01(a)(i).

      Class A Non-PO Principal  Balance:  As of any date, an amount equal to the
Class A Principal  Balance  less the Class A Subclass  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 Class A-8 Scheduled Accrual Component Distribution Amount, if
any,  with  respect  to such  Distribution  Date,  (ii) the  Class  A-9  Accrual
Distribution  Amount,  if any, with respect to such  Distribution Date and (iii)
the Class A Non-PO Principal Amount with respect to such Distribution Date.

      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 October 2002,  100%. As to any Distribution
Date  subsequent  to October  2002 to and  including  the  Distribution  Date in
October 2003,  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 October  2003 to and  including  the  Distribution  Date in
October 2004,  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 October  2004 to and  including  the  Distribution  Date in
October 2005,  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 October  2005 to and  including  the  Distribution  Date in
October 2006,  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 October 2006, 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  October
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 M Principal  Balance and the current Class B Principal Balance
and (b)  cumulative  Realized  Losses  shall not exceed (1) 30% of the  Original
Subordinated  Principal  Balance if such  Distribution  Date occurs  between and
including  November 2002 and October 2003, (2) 35% of the Original  Subordinated
Principal  Balance  if such  Distribution  Date  occurs  between  and  including
November 2003 and October 2004, (3) 40% of the Original  Subordinated  Principal
Balance if such Distribution Date occurs between and including November 2004 and
October 2005,  (4) 45% of the Original  Subordinated  Principal  Balance if such
Distribution  Date occurs between and including  November 2005 and October 2006,
and (5) 50% of the Original Subordinated  Principal Balance if such Distribution
Date occurs during or after November 2006. 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 Trustee,  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 Class A Subclass  Principal  Balances for the Class A-1 Certificates,  Class
A-2  Certificates,  Class A-3 Certificates,  Class A-5  Certificates,  Class A-6
Certificates,   Class  A-7  Certificates,  Class  A-8  Certificates,  Class  A-9
Certificates,  Class  A-10  Certificates,  Class A-11  Certificates,  Class A-12
Certificates,  Class A-PO  Certificates,  Class A-R  Certificate  and Class A-LR
Certificate.

      Class A Subclass: Any of the Subclasses of Class A Certificates consisting
of the Class A-1 Certificates,  Class A-2 Certificates,  Class A-3 Certificates,
Class A-4 Certificates,  Class A-5 Certificates,  Class A-6 Certificates,  Class
A-7  Certificates,  Class A-8 Certificates,  Class A-9 Certificates,  Class A-10
Certificates,  Class  A-11  Certificates,  Class A-12  Certificates,  Class A-PO
Certificates,  Class A-WIO  Certificates,  Class A-R  Certificate and Class A-LR
Certificate.

      Class A Subclass  Distribution Amount: As to any Distribution Date and any
Class A Subclass  (other than the Class A-4,  Class A-8,  Class A-9, Class A-WIO
and Class A-PO Certificates),  the amount distributable to such Class A Subclass
pursuant to Paragraphs first, second and third clause (A) of Section 4.01(a)(i).
As to the Class A-8 Certificates, the sum of (a) (i) as to any Distribution Date
prior to the Class A-8 Scheduled Accrual Component  Accretion  Termination Date,
the amount distributable to the Class A-8 Certificates with respect to the Class
A-8 Scheduled Accrual Component pursuant to the provisos in Paragraphs first and
second  of  Section  4.01(a)(i)  and  Paragraph  third  clause  (A)  of  Section
4.01(a)(i),  and (ii) as to any  Distribution  Date on or after  the  Class  A-8
Scheduled Accrual Component Accretion Termination Date, the amount distributable
to the Class A-8  Certificates  with respect to the Class A-8 Scheduled  Accrual
Component  pursuant to Paragraphs first,  second and third clause (A) of Section
4.01(a)(i),  (b) the amount  distributable  to the Class A-8  Certificates  with
respect to the IO Components  pursuant to Paragraphs first and second of Section
4.01(a)(i) and (c) the amount  distributable to the Class A-8 Certificates  with
respect to the Class A-8 PO Component  pursuant to Paragraph third clause (A) of
Section 4.01(a)(i). As to the Class A-9 Certificates, (a) as to any Distribution
Date prior to the Class A-9 Accretion Termination Date, the amount distributable
to the Class A-9  Certificates  pursuant to the provisos in Paragraphs first and
second  of  Section  4.01(a)(i)  and  Paragraph  third  clause  (A)  of  Section
4.01(a)(i)  and  (b) as to any  Distribution  Date on or  after  the  Class  A-9
Accretion   Termination  Date,  the  amount   distributable  to  the  Class  A-9
Certificates  pursuant  to  Paragraphs  first,  second  and third  clause (A) of
Section 4.01(a)(i). As to the Class A-4 and Class A-WIO Certificates, the amount
distributable  to such Class A Subclass  pursuant to Paragraphs first and second
of  Section  4.01(a)(i).   As  to  the  Class  A-PO  Certificates,   the  amount
distributable  pursuant  to  Paragraphs  third  clause (B) and fourth of Section
4.01(a)(i)

      Class A Subclass  Interest Accrual Amount: As to any Distribution Date and
any Class A Subclass  (other than the Class A-4, Class A-8, Class A-PO and Class
A-WIO  Certificates),  (i) the  product  of (a)  1/12th of the Class A  Subclass
Pass-Through  Rate  for  such  Class A  Subclass  and (b) the  Class A  Subclass
Principal  Balance  of  such  Class  A  Subclass  as of the  Determination  Date
preceding  such  Distribution  Date  minus  (ii) the Class A  Subclass  Interest
Percentage of such Class A Subclass of (x) any Non-Supported  Interest Shortfall
allocated to the Class A Certificates  with respect to such  Distribution  Date,
(y) the  interest  portion of any Excess  Special  Hazard  Losses,  Excess Fraud
Losses and Excess  Bankruptcy  Losses allocated to the Class A Certificates with
respect  to such  Distribution  Date  pursuant  to Section  4.02(e)  and (z) the
interest  portion of any  Realized  Losses  (other  than Excess  Special  Hazard
Losses, Excess Fraud Losses and Excess Bankruptcy Losses) allocated to the Class
A Certificates on or after the Cross-Over Date pursuant to Section  4.02(e).  As
to the Class A-8 Certificates, the sum of the Component Interest Accrual Amounts
for the Class A-8 Scheduled Accrual  Component and the IO Components.  As to any
Distribution Date and the Class A-4 Certificates, the Class A-4 Interest Accrual
Amount. As to any Distribution Date and the Class A-WIO Certificates,  the Class
A-WIO  Interest  Accrual  Amount.  The Class A-PO  Certificates  have no Class A
Subclass Interest Accrual Amount.

      Class A Subclass Interest Percentage:  As to any Distribution Date and any
Class A  Subclass  (other  than the Class  A-PO  Certificates),  the  percentage
calculated  by dividing  the Class A Subclass  Interest  Accrual  Amount of such
Class A Subclass  (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 Class A Subclass  Interest  Accrual Amount
and each Component Interest Accrual Amount).

      Class A Subclass  Interest  Shortfall  Amount: As to any Distribution Date
and any  Subclass  of Class A  Certificates,  any  amount  by which  the Class A
Subclass  Interest  Accrual Amount of such Class A Subclass with respect to such
Distribution  Date  exceeds  the amount  distributed  in respect of such Class A
Subclass  on such  Distribution  Date  pursuant  to  Paragraph  first of Section
4.01(a)(i)  including (i) in the case of the Class A-8 Certificates with respect
to the Class A-8 Scheduled  Accrual  Component  prior to the Class A-8 Scheduled
Accrual Component  Accretion  Termination Date, the amount included in the Class
A-8 Scheduled  Accrual Component  Distribution  Amount pursuant to clause (i) of
the definition  thereof and (ii) in the case of the Class A-9 Certificates prior
to the Class A-9 Accretion  Termination  Date, the amount  included in the Class
A-9  Accrual  Distribution  Amount  pursuant  to  clause  (i) of the  definition
thereof.

      Class A Subclass  Interest  Shortfall  Percentage:  As to any Distribution
Date and Class A Subclass,  the  percentage  calculated  by dividing the Class A
Subclass  Unpaid  Interest  Shortfall  for such Class A Subclass  by the Class A
Unpaid  Interest  Shortfall,  in each case  determined  as of the  Business  Day
preceding the applicable Distribution Date.

      Class A Subclass Loss  Percentage:  As to any  Determination  Date and any
Subclass of Class A  Certificates  (other than the Class A-4,  Class A-8,  Class
A-PO and Class A-WIO Certificates) then outstanding,  the percentage  calculated
by dividing the Class A Subclass  Principal Balance of such Subclass (or, in the
case of the Class A-9  Certificates,  the  Original  Class A Subclass  Principal
Balance of such Subclass, if lower) by the Class A Loss Denominator  (determined
without  regard to any such  Class A Subclass  Principal  Balance of any Class A
Subclass (other than the Class A-8 Certificates) or Component  Principal Balance
of the Class A-8 Scheduled  Accrual Component or Class A-8 PO Component not then
outstanding), in each case determined as of the preceding Determination Date.

      Class A Subclass Pass-Through Rate: As to the Class A-5, Class A-10, Class
A-R and Class A-LR Certificate,  the Class A Fixed  Pass-Through Rate. As to the
Class A-1,  Class A-2 and Class A-3  Certificates,  6.750% per annum.  As to the
Class A-4 and Class A-9 Certificates,  7.500% per annum. As to the Class A-6 and
Class A-11  Certificates,  7.150% per annum.  As to the Class A-7 and Class A-12
Certificates,  8.000% per annum.  As to the Class A-WIO  Certificates  the Class
A-WIO  Pass-Through  Rate. The Class A-8  Certificates  have no Class A Subclass
Pass-Through  Rate. The Class A-PO Certificates are not entitled to interest and
have no Class A Subclass Pass-Through Rate.

      Class A Subclass Principal Balance: As of the first Determination Date and
as to any Class A Subclass  (other than the Class A-4, Class A-8 and Class A-WIO
Certificates),  the Original Class A Subclass  Principal Balance of such Class A
Subclass.  As of any subsequent  Determination Date prior to the Cross-Over Date
and as to any Class A Subclass  (other than the Class A-4, Class A-8, Class A-PO
and Class A-WIO  Certificates),  the Original Class A Subclass Principal Balance
of such Class A Subclass (increased in the case of the Class A-9 Certificates by
the Class A-9  Principal  Accretion  Amounts with respect to prior  Distribution
Dates) less the sum of (a) all amounts previously distributed in respect of such
Class A Subclass on prior  Distribution  Dates (A) pursuant to  Paragraph  third
clause (A) of Section 4.01(a)(i) (B) as a result of a Principal Adjustment, (C),
if  applicable,  from the Class A-8  Scheduled  Accrual  Component  Distribution
Amounts for such prior Distribution Dates and (D), if applicable, from the Class
A-9 Accrual  Distribution  Amounts for such prior Distribution Dates and (b) the
Realized  Losses  allocated  through  such  Determination  Date to such  Class A
Subclass pursuant to Section 4.02(b). After the Cross-Over Date, each such Class
A Subclass  Principal Balance will also be reduced on each Determination Date by
an amount equal to the product of the Class A Subclass  Loss  Percentage of such
Class A Subclass  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 to the Class A-8 Certificates,  the sum of the
Component  Principal  Balances  of the  Class  A-8 PO  Component  and  Class A-8
Scheduled Accrual Component. The Class A-4 and Class A-WIO Certificates will not
have Class A Subclass Principal Balances.

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

      Class A Subclass Unpaid Interest  Shortfall:  As to any Distribution  Date
and Class A Subclass,  the amount, if any, by which the aggregate of the Class A
Subclass  Interest  Shortfall  Amounts  for  such  Class A  Subclass  for  prior
Distribution  Dates is in excess of the amounts  distributed  in respect of such
Class A Subclass (or (a) in the case of the Class A-8 Certificates  with respect
to the Class A-8 Scheduled  Accrual  Component  prior to the Class A-8 Scheduled
Accrual Component  Accretion  Termination Date, the amount included in the Class
A-8 Scheduled Accrual Component  Distribution  Amount pursuant to clause (ii) of
the definition  thereof and (b) in the case of the Class A-9 Certificates  prior
to the Class A-9 Accretion  Termination  Date, the amount  included in the Class
A-9  Accrual  Distribution  Amount  pursuant  to clause  (ii) of the  definition
thereof) on prior  Distribution  Dates  pursuant to Paragraph  second of Section
4.01(a)(i).

      Class A Unpaid Interest Shortfall:  As to any Distribution Date, an amount
equal to the sum of the Class A Subclass Unpaid Interest  Shortfalls for all the
Class A Subclasses.

      Class  A  Voting  Interest:  The sum of (A) the  product  of (i) the  then
applicable  Class A Percentage  and (ii) the Non-PO Voting  Interest and (B) the
Pool Balance (PO Portion)  divided by the Pool Balance (Non-PO  Portion) and the
Pool Balance (PO Portion).

      Class A-1 Certificate: Any one of the Certificates executed by the Trustee
and  authenticated by the Trustee or the  Authenticating  Agent in substantially
the form set forth in Exhibit A-1 and Exhibit D 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 Trustee
and  authenticated by the Trustee or the  Authenticating  Agent in substantially
the form set forth in Exhibit A-2 and Exhibit D 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 Trustee
and  authenticated by the Trustee or the  Authenticating  Agent in substantially
the form set forth in Exhibit A-3 and Exhibit D 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 Trustee
and  authenticated by the Trustee or the  Authenticating  Agent in substantially
the form set forth in Exhibit A-4 and Exhibit D hereto.

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

      Class A-4 Interest Accrual Amount:  As to any  Distribution  Date, (i) the
product of (A) 1/12th of the Class A-4  Pass-Through  Rate and (B) the Class A-4
Notional  Amount as of such  Distribution  Date  minus (ii) the Class A Subclass
Interest  Percentage  of the Class  A-4  Certificates  of (x) any  Non-Supported
Interest  Shortfall  allocated  to the Class A  Certificates,  (y) the  interest
portion of any Excess  Special  Hazard  Losses,  Excess  Fraud Losses and Excess
Bankruptcy  Losses  allocated to the Class A  Certificates  and (z) the interest
portion of any Realized Losses (other than Excess Special Hazard Losses,  Excess
Fraud Losses and Excess Bankruptcy Losses) allocated to the Class A Certificates
on or after the Cross-Over Date pursuant to Section 4.02(e).

      Class A-4 Notional Amount: As to any Distribution Date, an amount equal to
the  product  of (i) 9.30% and (ii) the sum of the  Class A  Subclass  Principal
Balances of the PAC Certificates.

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

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

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

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

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

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

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

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

      Class  A-8  Component:  Any  of the  Class  A-8 PO  Component,  Class  A-8
Scheduled Accrual Component,  Class A-8 IO A Component, Class A-8 IO B Component
or Class A-8 IO C Component.

      Class A-8 IO A Component  Interest Accrual Amount:  As to any Distribution
Date, (i) the product of (A) 1/12th of the Component Rate for such Component and
(B) the Class A-8 IO A Component  Notional Amount as of such  Distribution  Date
minus  (ii) the  Component  Interest  Percentage  of such  Component  of (x) any
Non-Supported Interest Shortfall allocated to the Class A Certificates,  (y) the
interest  portion of any Excess Special  Hazard Losses,  Excess Fraud Losses and
Excess  Bankruptcy  Losses  allocated  to the Class A  Certificates  and (z) the
interest  portion of any  Realized  Losses  (other  than Excess  Special  Hazard
Losses, Excess Fraud Losses and Excess Bankruptcy Losses) allocated to the Class
A Certificates on or after the Cross-Over Date pursuant to Section 4.02(e).

      Class A-8 IO A Component Notional Amount: As to any Distribution Date, the
product of (i) 0.70% and (ii) the sum of the Class A Subclass Principal Balances
of the PAC Certificates.

      Class A-8 IO B Component  Interest Accrual Amount:  As to any Distribution
Date, (i) the product of (A) 1/12th of the Component Rate for such Component and
(B) the Class A-8 IO B Component  Notional Amount as of such  Distribution  Date
minus  (ii) the  Component  Interest  Percentage  of such  Component  of (x) any
Non-Supported Interest Shortfall allocated to the Class A Certificates,  (y) the
interest  portion of any Excess Special  Hazard Losses,  Excess Fraud Losses and
Excess  Bankruptcy  Losses  allocated  to the Class A  Certificates  and (z) the
interest  portion of any  Realized  Losses  (other  than Excess  Special  Hazard
Losses, Excess Fraud Losses and Excess Bankruptcy Losses) allocated to the Class
A Certificates on or after the Cross-Over Date pursuant to Section 4.02(e).

      Class A-8 IO B Component Notional Amount: As to any Distribution Date, the
product of (i) 36.14% and (ii) the aggregate  Scheduled Principal Balance of the
Premium Mortgage Loans as of such Distribution Date.

      Class A-8 IO C Component  Interest Accrual Amount:  As to any Distribution
Date, (i) the product of (A) 1/12th of the Component Rate for such Component and
(B) the Class A-8 IO C Component  Notional Amount as of such  Distribution  Date
minus  (ii) the  Component  Interest  Percentage  of such  Component  of (x) any
Non-Supported Interest Shortfall allocated to the Class A Certificates,  (y) the
interest  portion of any Excess Special  Hazard Losses,  Excess Fraud Losses and
Excess  Bankruptcy  Losses  allocated  to the Class A  Certificates  and (z) the
interest  portion of any  Realized  Losses  (other  than Excess  Special  Hazard
Losses, Excess Fraud Losses and Excess Bankruptcy Losses) allocated to the Class
A Certificates on or after the Cross-Over Date pursuant to Section 4.02(e).

      Class A-8 IO C Component Notional Amount: As to any Distribution Date, the
product of (i) 3.33% and (ii) the sum of the Class A Subclass Principal Balances
of the Scheduled Certificates.

      Class A-8 Scheduled  Accrual  Component  Accretion  Termination  Date: The
earlier of (i) the Distribution  Date following the  Distribution  Date on which
the Class A Subclass Principal Balances of the Scheduled  Certificates have been
reduced to zero or (ii) the Cross-Over Date.

      Class A-8  Scheduled  Accrual  Component  Distribution  Amount:  As to any
Distribution Date prior to the Class A-8 Scheduled  Accrual Component  Accretion
Termination  Date,  an  amount  equal to the sum of (i) the  Component  Interest
Percentage of the Class A-8 Scheduled  Accrual  Component of the Current Class A
Interest  Distribution Amount and (ii) the Component Shortfall Percentage of the
Class A-8 Scheduled  Accrual  Component of the amount  distributed in respect of
the Class A-8 Certificates pursuant to Paragraph second of Section 4.01(a)(i) on
such  Distribution  Date. As to any Distribution  Date on or after the Class A-8
Scheduled Accrual Component Accretion Termination Date, zero.

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

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

      Class A-8 Scheduled  Accrual Component  Principal  Accretion Amount: As to
any  Distribution  Date  prior to the  Class  A-8  Scheduled  Accrual  Component
Accretion Termination Date, an amount equal to the sum of the amounts calculated
pursuant  to  clauses  (i) and (ii) of the  definition  of Class  A-8  Scheduled
Accrual Component Distribution Amount with respect to such Distribution Date.

      Class A-9 Accretion  Termination Date: The earlier of (i) the Distribution
Date  following the  Distribution  Date on which the Class A Subclass  Principal
Balances of the Scheduled  Certificates and the Component  Principal  Balance of
the Class A-8 Scheduled  Accrual Component have been reduced to zero or (ii) the
Cross-Over Date.

      Class A-9 Accrual  Distribution  Amount: As to any Distribution Date prior
to the Class A-9 Accretion  Termination  Date, an amount equal to the sum of (i)
the Class A Subclass  Interest  Percentage of the Class A-9  Certificates of the
Current  Class A  Interest  Distribution  Amount  and (ii) the Class A  Subclass
Interest  Shortfall  Percentage  of the Class  A-9  Certificates  of the  amount
distributed in respect of the Class A Subclasses pursuant to Paragraph second of
Section  4.01(a)(i) on such Distribution Date. As to any Distribution Date on or
after the Class A-9 Accretion Termination Date, zero.

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

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

      Class A-9 Principal Accretion Amount: As to any Distribution Date prior to
the Class A-9  Accretion  Termination  Date,  an amount  equal to the sum of the
amounts  calculated  pursuant to clauses (i) and (ii) of the definition of Class
A-9 Accrual Distribution Amount with respect to such Distribution Date.

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

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

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

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

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

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

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

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


      Class A-L8PO Interest: A regular interest in the Lower-Tier REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

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

      Class A-L9 Interest:  A regular  interest in the Lower-Tier REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

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

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

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

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

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

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

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

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

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

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

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

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

      Class  A-WIO  Certificate:  Any one of the  Certificates  executed  by the
Trustee  and  authenticated  by the  Trustee  or  the  Authenticating  Agent  in
substantially the form set forth in Exhibit A-WIO and Exhibit D hereto.

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

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

      Class A-WIO Notional Amount:  As to any Distribution  Date,  63.86% of the
the aggregate  Scheduled  Principal  Balance of the Premium Mortgage Loans as of
such Distribution Date.

      Class A-WIO  Pass-Through  Rate: As to any Distribution  Date, a per annum
rate  equal to  Weighted  Average  Net  Mortgage  Interest  Rate of the  Premium
Mortgage Loans minus 7.250%.

      Class  A-R  Certificate:  The  Certificate  executed  by the  Trustee  and
authenticated by the Trustee or the  Authenticating  Agent in substantially  the
form set forth in Exhibit A-R and Exhibit D 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  or Class B-5
Certificates.

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

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

      Class B Pass-Through Rate: As to any Distribution Date, 7.250% per annum.

      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 and Class B-5 Principal Balance.

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

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

      Class B Subclass  Interest Accrual Amount: As to any Distribution Date and
any Class B Subclass,  an amount equal to (i) the product of 1/12th of the Class
B Pass-Through  Rate and the Class B Subclass  Principal Balance of such Class B
Subclass as of the  Determination  Date preceding such  Distribution  Date minus
(ii) the Class B Subclass  Interest  Percentage  of such Class B Subclass 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).

      Class B Subclass Interest Percentage:  As to any Distribution Date and any
Class B Subclass,  the  percentage  calculated  by dividing the Class B Subclass
Interest Accrual Amount of such Class B Subclass  (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 Class B
Subclass Interest Accrual Amount).

      Class B Subclass 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 or Class B-5 Interest
Shortfall Amount.

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

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

      Class B Subclass  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 or Class B-5 Prepayment Percentage.

      Class  B  Subclass  Principal  Balance:  Any of the  Class  B-1  Principal
Balance,  Class B-2 Principal Balance,  Class B-3 Principal  Balance,  Class B-4
Principal Balance or Class B-5 Principal Balance.

      Class B Subclass  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  or Class B-5 Unpaid
Interest Shortfall.

      Class B-1 Certificate: Any one of the Certificates executed by the Trustee
and  authenticated by the Trustee or the  Authenticating  Agent in substantially
the form set forth in Exhibit B-1 and Exhibit D 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 eighth, ninth and tenth of Section 4.01(a)(i).

      Class B-1 Interest  Shortfall  Amount:  As to any  Distribution  Date, any
amount by which the Class B Subclass  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 eighth of Section 4.01(a)(i).

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

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

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

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

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

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass 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, 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-1 Principal
Balance  (determined as of the  Determination  Date preceding such  Distribution
Date) and the  denominator of which is the sum of the Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  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-1  Certificates  are not  eligible  to  receive
distributions of principal in accordance with Section 4.01(d)(i),  the Class B-1
Percentage for such Distribution Date will be zero.

      Class B-1 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-1  Principal  Balance  (determined  as of the  Determination  Date
preceding such Distribution Date) and the denominator of which is the sum of the
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  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-1
Certificates  are  not  eligible  to  receive   distributions  of  principal  in
accordance with Section 4.01(d)(i), the Class B-1 Prepayment Percentage for such
Distribution Date will be zero.

      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 tenth of Section 4.01(a)(i)
and (B) as a  result  of a  Principal  Adjustment  and (b) the  Realized  Losses
allocated through such Determination Date to the Class B-1 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 M
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 ninth of Section 4.01(a)(i).

      Class B-2 Certificate: Any one of the Certificates executed by the Trustee
and  authenticated by the Trustee or the  Authenticating  Agent in substantially
the form set forth in Exhibit B-2 and Exhibit D 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 eleventh, twelfth and thirteenth of Section 4.01(a)(i).

      Class B-2 Interest  Shortfall  Amount:  As to any  Distribution  Date, any
amount by which the Class B Subclass  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 eleventh of Section 4.01(a)(i).

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

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

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

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

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

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass 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 Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  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
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  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  thirteenth  of  Section
4.01(a)(i)  and (B) as a result of a Principal  Adjustment  and (b) the Realized
Losses allocated through such  Determination  Date to the Class B-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 the
Class M  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 twelfth of Section 4.01(a)(i).

      Class B-3 Certificate: Any one of the Certificates executed by the Trustee
and  authenticated by the Trustee or the  Authenticating  Agent in substantially
the form set forth in Exhibit B-3 and Exhibit D 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 fourteenth, fifteenth and sixteenth of Section 4.01(a)(i).

      Class B-3 Interest  Shortfall  Amount:  As to any  Distribution  Date, any
amount by which the Class B Subclass  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 fourteenth of Section 4.01(a)(i).

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

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

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

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

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

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass 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 Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  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
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  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  sixteenth  of  Section
4.01(a)(i)  and (B) as a result of a Principal  Adjustment  and (b) the Realized
Losses through such  Determination  Date allocated 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 M 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 fifteenth of Section 4.01(a)(i).

      Class B-4 Certificate: Any one of the Certificates executed by the Trustee
and  authenticated by the Trustee or the  Authenticating  Agent in substantially
the form set forth in Exhibit B-4 and Exhibit D 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 seventeenth, eighteenth, and nineteenth of Section 4.01(a)(i).

      Class B-4 Interest  Shortfall  Amount:  As to any  Distribution  Date, any
amount by which the Class B Subclass  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 seventeenth of Section 4.01(a)(i).

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

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

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

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

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

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass 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 Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  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
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  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  nineteenth  of  Section
4.01(a)(i)  and (B) as a result of a Principal  Adjustment  and (b) the Realized
Losses allocated through such  Determination  Date to the Class B-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 M  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 eighteenth of Section 4.01(a)(i).

      Class B-5 Certificate: Any one of the Certificates executed by the Trustee
and  authenticated by the Trustee or the  Authenticating  Agent in substantially
the form set forth in Exhibit B-5 and Exhibit D 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 twentieth, twenty-first, and twenty-second of Section 4.01(a)(i).

      Class B-5 Interest  Shortfall  Amount:  As to any  Distribution  Date, any
amount by which the Class B Subclass  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 twentieth of Section 4.01(a)(i).

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

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

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

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

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

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass 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 Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  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
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  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  pursuant  to  Paragraph   twenty-second  of  Section
4.01(a)(i) and (b) the Realized Losses allocated through such Determination Date
to the Class B-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 M  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 twenty-first of Section 4.01(a)(i).

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

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

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

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

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

      Class M Certificate:  Any one of the Certificates  executed by the Trustee
and  authenticated by the Trustee or the  Authenticating  Agent in substantially
the form set forth in Exhibit C and Exhibit D hereto.

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

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

      Class M Interest Accrual Amount:  As to any  Distribution  Date, an amount
equal to (i) the  product  of 1/12th of the  Class M  Pass-Through  Rate and the
Class  M  Principal  Balance  as  of  the  Determination   Date  preceding  such
Distribution Date minus (ii) (x) any Non-Supported  Interest Shortfall allocated
to the Class M 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 M Certificates with respect to
such Distribution Date pursuant to Section 4.02(e).

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

      Class M 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 M 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 M  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  M  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 M  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
         Servicer,  the  Master  Servicer  or the  Trustee  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 M Optimal Principal Amount will
equal  the  lesser of (A) the Class M Optimal  Principal  Amount  calculated  as
described in the preceding provisions and (B) the Adjusted Principal Balance for
the Class M Certificates.

      Class M Pass-Through Rate: As to any Distribution Date, 7.250% per annum.

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

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

      Class  M  Principal  Balance:  As to the  first  Determination  Date,  the
Original Class M Principal Balance. As of any subsequent Determination Date, the
lesser of (i) the  Original  Class M Principal  Balance  less the sum of (a) all
amounts  previously  distributed in respect of the Class M Certificates on prior
Distribution  Dates (A) pursuant to Paragraph seventh of Section  4.01(a)(i) and
(B) as a result of a Principal  Adjustment and (b) the Realized Losses allocated
through such Determination Date to the Class M 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 M  Unpaid  Interest  Shortfall:  As to any  Distribution  Date,  the
amount, if any, by which the aggregate of the Class M Interest Shortfall Amounts
for prior Distribution Dates is in excess of the amounts  distributed in respect
of the Class M Certificates  on prior  Distribution  Dates pursuant to Paragraph
sixth of Section 4.01(a)(i).

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

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

      Clearing Agency 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 11.24.

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

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

      Component: Any one of the Class A-8 Components.

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

      Component Interest  Percentage:  As to any Distribution Date and Class A-8
Component (other than the Class A-8 PO Component),  the percentage calculated by
dividing the Component  Interest  Accrual Amount of such  Component  (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 Class A Subclass  Interest  Accrual  Amount  (other  than for the Class A-8
Certificates) and each Component Interest Accrual Amount).

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

      Component Interest Shortfall Distribution: As to any Distribution Date and
Class A-8 Component (other than the Class A-8 PO Component),  the product of (i)
the amount that would be  distributable in respect of the Class A-8 Certificates
with respect to such  Distribution  Date pursuant to Paragraph second of Section
4.01(a)(i)  without  regard to the proviso set forth in such  Paragraph and (ii)
the Component Shortfall Percentage for such Distribution Date.

      Component  Loss  Percentage:   As  to  the  Class  A-8  Scheduled  Accrual
Component, the Class A-8 Scheduled Accrual Component Loss Percentage.  As to the
Class A-8 PO Component, the Class A-8 PO Component Loss Percentage.

      Component  Principal Balance: As of the first Determination Date and as to
the Class A-8 PO Component and the Class A-8 Scheduled  Accrual  Component,  the
Original Component  Principal Balance.  As of any subsequent  Determination Date
and as to the Class A-8  Scheduled  Accrual  Component  prior to the  Cross-Over
Date,  the Original  Component  Principal  Balance  (increased  by the Class A-8
Scheduled  Accrual Component  Principal  Accretion Amounts with respect to prior
Distribution  Dates) less the sum of (a) all amounts  previously  distributed in
respect of such Component on prior  Distribution Dates (A) pursuant to Paragraph
third  clause  (A)  of  Section  4.01(a)(i),  (B)  as a  result  of a  Principal
Adjustment and (C) from the Class A-8 Scheduled Accrual  Component  Distribution
Amounts and Class A-9 Accrual  Distribution  Amounts for such prior Distribution
Dates and (b) the Realized Losses allocated through such  Determination  Date to
such  Component  pursuant to Section  4.02(b).  After the  Cross-Over  Date, the
Component  Principal Balance will also be reduced on each  Determination Date by
an  amount  equal to the  product  of the  Component  Loss  Percentage  for such
Component and the excess,  if any, of (i) the Class A Non-PO  Principal  Balance
for 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. The IO Components have no Component Principal Balances.

      Component  Rate:  As to any  Distribution  Date  and  for  the  Class  A-8
Scheduled Accrual  Component,  7.500% per annum. As to any Distribution Date and
for the Class A-8 IO A Component,  7.500% per annum. As to any Distribution Date
and for the Class A-8 IO B  Component,  a per annum rate  equal to the  Weighted
Average Net Mortgage  Interest Rate of the Premium  Mortgage Loans minus 7.250%.
As to any  Distribution  Date and for the Class A-7 IO C  Component,  7.500% per
annum.

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

      Component Unpaid Interest Shortfall: As to any Distribution Date and Class
A-8  Component  (other  than the  Class  A-8 PO  Component),  (i) the sum of the
Component  Interest  Shortfall Amounts for such Component for prior Distribution
Dates  minus  (ii)  the  Component  Interest  Shortfall  Distributions  for such
Component for prior Distribution Dates.

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

      Corporate Trust Office:  The principal office of the Trustee,  at which at
any particular  time its corporate  trust business shall be  administered  which
office is located at 230 South Tryon Street, Charlotte, North Carolina 28288.

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

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

  Class A-L1 Interest                   Class A-1 Certificates, Class A-2
                                        Certificates, Class A-3 Certificates, 
                                        Class A-4 Certificates and 
                                        Class A-8 IO A Component

  Class A-L5 Interest                   Class A-5 Certificates, Class A-6
                                        Certificates, Class A-7 Certificates
                                        and Class A-8 IO C Component

  Class A-L8PO Interest                 Class A-8 PO Component

  Class A-L8 Interest                   Class A-8 Scheduled Accrual Component

  Class A-L9 Interest                   Class A-9 Certificates

  Class A-L10 Interest                  Class A-10 Certificates, Class A-11
                                        Certificates and Class A-12 Certificates

  Class A-LPO Interest                  Class A-PO Certificates

  Class A-LWIO Interest                 Class A-WIO Certificates and
                                        Class A-8 IO B Component

  Class A-LUR Interest                  Class A-R Certificate

  Class B-L1 Interest                   Class B-1 Certificates

  Class B-L2 Interest                   Class B-2 Certificates

  Class B-L3 Interest                   Class B-3 Certificates

  Class B-L4 Interest                   Class B-4 Certificates

  Class B-L5 Interest                   Class B-5 Certificates

  Class M-L Interest                    Class M Certificates

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

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

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

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

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

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

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

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

      Current Class M Interest Distribution Amount: As to any Distribution Date,
the  amount  distributed  in  respect of the Class M  Certificates  pursuant  to
Paragraph fifth of Section 4.01(a)(i) on such Distribution Date.

      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 Trustee,  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 Trustee, and thereafter the Custodian, if any,
hereafter appointed by the Trustee pursuant to Section 8.13, or its successor in
interest under the Custodial Agreement.  The Custodian may (but need not) be the
Trustee or any Person  directly or  indirectly  controlling  or controlled by or
under common control of the Trustee.  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 (other than the Class A-4 and Class A-WIO Certificates) representing
the principal portion of the Cut-Off Date Aggregate  Principal Balance evidenced
by such Certificate.  As to the Class A-4 Certificates,  the amount specified on
the face of such Certificate  representing the portion of the Original Class A-4
Notional Amount,  as the case may be, evidenced by such  Certificate.  As to the
Class A-WIO Certificates,  the Percentage Interest specified on the face of each
Class A-WIO 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 7.250%.

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

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

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

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

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

                 (ii)  general  obligations of or obligations  guaranteed by any
         state of the  United  States of  America or the  District  of  Columbia
         receiving the highest  short-term or highest  long-term  rating of each
         Rating  Agency,  or such  lower  rating  as  would  not  result  in the
         downgrading  or  withdrawal  of the rating then  assigned to any of the
         Certificates  by either  Rating  Agency or result in any of such  rated
         Certificates  being  placed on credit  review  status  (other  than for
         possible upgrading) 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
the Norwest Servicing Agreement.

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

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

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

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

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

      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  $7,000,101.86  minus  the  aggregate  amount  of Fraud  Losses
allocated  solely to the Class B Certificates or, following the reduction of the
Class B  Principal  Balance  to zero,  solely  to the  Class M  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 or, following the
reduction  of the  Class B  Principal  Balance  to zero,  solely  to the Class M
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  Distributions:  With respect to any Distribution  Date, (i) with
respect to a Class A Subclass or Component,  the amount actually  distributed to
such Class A Subclass or Component  pursuant to  Paragraphs  first and second of
Section  4.01(a)(i)  excluding any amounts  distributed  in accordance  with the
provisos  thereof,  (ii) with  respect to the Class M  Certificates,  the amount
actually  distributed to the Class M Certificates  pursuant to Paragraphs  fifth
and sixth of Section  4.01(a)(i)  and (iii) with  respect to a Class B Subclass,
the amount actually  distributed to such Class B Subclass pursuant to Paragraphs
eighth and ninth,  eleventh and twelfth,  fourteenth and fifteenth,  seventeenth
and eighteenth or twentieth and twenty-first of Section 4.01(a)(i).

      IO  Component:  Each  of the  Class  A-8 IO A  Component,  Class  A-8 IO B
Component and Class A-8 IO C Component.

      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 Trustee  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.

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

      Lower-Tier  REMIC: One of two separate REMICs comprising the Trust Estate,
the assets of which  consist of the Mortgage  Loans,  such amounts as shall from
time to time be held in the Certificate Account, the insurance policies, if any,
relating to a Mortgage Loan and property which secured a Mortgage Loan and which
has been acquired by foreclosure or deed in lieu of foreclosure.

      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 11.29.

      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.

      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).

      Month End Interest:  As defined in each Servicing Agreement.

      Moody's:  Moody's Investors Service, Inc., or its successor in interest.

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

                    (i)    the Mortgage Loan identifying number;

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

                  (iii)    the type of property;

                   (iv)    the Mortgage Interest Rate;

                    (v)    the Net Mortgage Interest Rate;

                   (vi)    the Monthly Payment;

                  (vii)    the original number of months to maturity;

                 (viii)    the scheduled maturity date;

                   (ix)    the Cut-Off Date Principal Balance;

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

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

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

                 (xiii)    the Servicing Fee Rate;

                  (xiv)    whether such Mortgage Loan is a T.O.P. Mortgage Loan;

                   (xv)    the Master Servicing Fee; and

                  (xvi)    for  Mortgage  Loans  identified  on Exhibit F-3, 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
Trustee 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 Liquidated Loan,  Liquidation Proceeds
net of Liquidation Expenses. For all purposes of this Agreement, Net Liquidation
Proceeds shall be allocated  first to accrued and unpaid interest on the related
Mortgage Loan and then to the unpaid principal balance thereof.

      Net Mortgage  Interest  Rate:  With respect to each Mortgage  Loan, a rate
equal to (i) the Mortgage Interest Rate on such Mortgage Loan minus (ii) the sum
of (a) the  Servicing  Fee Rate,  as set forth in Section  11.28 with respect to
such  Mortgage  Loan and (b) the  Master  Servicing  Fee  Rate,  as set forth in
Section  11.29  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  Partial  Liquidation  Proceeds:  Partial  Liquidation  Proceeds  with
respect to a Mortgage Loan net of  unreimbursed  Liquidation  Expenses  incurred
with respect to such  Mortgage  Loan.  For all purposes of this  Agreement,  Net
Partial  Liquidation  Proceeds  shall be  allocated  first to accrued and unpaid
interest on the related Mortgage Loan and then to the unpaid  principal  balance
thereof.

      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 7.250%.

      Non-PO Voting  Interest:  The ratio  obtained by dividing the Pool Balance
(Non-PO  Portion) by the sum of the Pool Balance  (Non-PO  Portion) and the Pool
Balance (PO Portion).

      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 Trustee,  as
the case may be, and which the  Servicer  or the Master  Servicer or the Trustee
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 Trustee  (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 Trustee or, in the case
of a Master  Servicer  determination,  an  Officer's  Certificate  of the Master
Servicer  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,  the Class M Principal Balance and the
Class B  Principal  Balance,  (b)  the  Class M  Certificates  according  to the
percentage  obtained by dividing the Class M Principal Balance by the sum of the
Class A Non-PO Principal Balance,  the Class M Principal Balance and the Class B
Principal  Balance and (c) 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,  the  Class M  Principal  Balance  and  the  Class B
Principal Balance.

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

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

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

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

      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;  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 the Class M Certificates or any
Class B Subclass and any  Distribution  Date, an Optimal  Adjustment  Event will
occur with  respect to such Class or Subclass if: (i) the  principal  balance of
such Class or Subclass 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) any Class A  Subclass  Principal
Balance  (other than with  respect to the Class A-8  Certificates)  or Component
Principal Balance would be subject to further reduction as a result of the third
sentences of the definition of Class A Subclass  Principal  Balance or Component
Principal Balance,  as applicable,  or (b) with respect to any Class B Subclass,
the Class M  Principal  Balance or the Class B Subclass  Principal  Balance of a
Class B  Subclass  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 M Principal  Balance,  Class B-1 Principal  Balance,
Class B-2 Principal Balance,  Class B-3 Principal  Balance,  Class B-4 Principal
Balance or Class B-5 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 (i) Original
Class A Subclass  Principal  Balances  of the Class A-1,  Class A-2,  Class A-3,
Class A-5, Class A-6, Class A-7, Class A-9, Class A-10,  Class A-11, Class A-12,
Class A-R and Class A-LR Certificates and (ii) the sum of the Original Component
Principal Balance of the Class A-7 Scheduled Accrual Component and the Class A-8
PO Component as set forth in Section 11.05.

      Original Class A Subclass Principal  Balance:  Any of the Original Class A
Subclass Principal Balances as set forth in Section 11.05.

      Original  Class A-4  Notional  Amount:  The  Original  Class A-4  Notional
Amount, as set forth in Section 11.07.

      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 and Original Class B-5
Principal Balance, as set forth in Section 11.18.

      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 and the Original Class B-5 Principal Balance by the sum of the
Original  Class A Non-PO  Principal  Balance,  the  Original  Class M  Principal
Balance and the  Original  Class B Principal  Balance.  The  Original  Class B-1
Fractional Interest is specified in Section 11.20.

      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 and the Original  Class B-5
Principal  Balance by the sum of the Original Class A Non-PO Principal  Balance,
the  Original  Class M  Principal  Balance  and the  Original  Class B Principal
Balance.  The  Original  Class B-2  Fractional  Interest is specified in Section
11.21.

      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 and the Original Class B-5 Principal  Balance by the sum of the Original
Class A Non-PO Principal Balance, the Original Class M Principal Balance and the
Original Class B Principal Balance.  The Original Class B-3 Fractional  Interest
is specified in Section 11.22.

      Original Class B-4 Fractional Interest: As to the first Distribution Date,
the percentage  obtained by dividing the Original Class B-5 Principal Balance by
the sum of the Original Class A Non-PO Principal  Balance,  the Original Class M
Principal Balance and the Original Class B Principal Balance. The Original Class
B-4 Fractional Interest is specified in Section 11.23.

      Original Class B-1 Percentage:  The Class B-1 Percentage as of the Cut-Off
Date, as set forth in Section 11.13.

      Original Class B-2 Percentage:  The Class B-2 Percentage as of the Cut-Off
Date, as set forth in Section 11.14.

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

      Original Class B-4 Percentage:  The Class B-4 Percentage as of the Cut-Off
Date, as set forth in Section 11.16.

      Original Class B-5 Percentage:  The Class B-5 Percentage as of the Cut-Off
Date, as set forth in Section 11.17.

      Original Class B-1 Principal  Balance:  The Class B-1 Principal Balance as
of the Cut-Off Date, as set forth in Section 11.18.

      Original Class B-2 Principal  Balance:  The Class B-2 Principal Balance as
of the Cut-Off Date, as set forth in Section 11.19.

      Original Class B-3 Principal  Balance:  The Class B-3 Principal Balance as
of the Cut-Off Date, as set forth in Section 11.19.

      Original Class B-4 Principal  Balance:  The Class B-4 Principal Balance as
of the Cut-Off Date, as set forth in Section 11.19.

      Original Class B-5 Principal  Balance:  The Class B-5 Principal Balance as
of the Cut-Off Date, as set forth in Section 11.19.

      Original Class M Fractional  Interest:  As to the first Distribution Date,
the percentage  obtained by dividing the Original  Class B Principal  Balance by
the sum of the Original Class A Non-PO Principal  Balance,  the Original Class M
Principal Balance and the Original Class B Principal Balance. The Original Class
M Fractional Interest is specified in Section 11.12.

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

      Original Class M Principal  Balance:  The Class M Principal  Balance as of
the Cut-Off Date, as set forth in Section 11.11.

      Original  Component  Principal  Balance:  Any  of the  Original  Component
Principal Balances, as set forth in Section 11.08.

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

      Original  Subordinated  Principal Balance: The sum of the Original Class M
Principal Balance and the Original Class B Principal Balance.

      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  Trustee  (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.

      PAC Certificates:  The Class A-1  Certificates,  Class A-2 Certificates or
Class A-3 Certificates.

      PAC Principal Amount: As defined in Section 4.01(b).

      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. 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 (other than the
Class  A-4 or  Class  A-WIO  Certificate),  the  undivided  percentage  interest
obtained by dividing the original  principal  balance of such Certificate by the
aggregate  original  principal  balance  of all  Certificates  of  such  Class A
Subclass.  With respect to a Class A-4  Certificate,  the  undivided  percentage
interest  obtained by dividing the Original Class A-4 Notional Amount  evidenced
by such Certificate by the aggregate  Original Class A-4 Notional  Amount.  With
respect to a Class A-WIO Certificate,  the percentage  interest specified on the
face of such Certificate.  With respect to a Class M Certificate,  the undivided
percentage  interest obtained by dividing the original principal balance of such
Certificate by the aggregate  original  principal balance of all Certificates of
such Class.  With respect to a Class B  Certificate,  the  undivided  percentage
interest obtained by dividing the original principal balance of such Certificate
by the aggregate  original principal balance of all Certificates of such Class B
Subclass.

      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 Trustee 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 the Trustee 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
Trustee,  as the case may be and (z) have  not  been  determined  by the  Master
Servicer, such Servicer or Trustee 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
Trustee  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  Trustee 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 Trustee has made one or more
      unreimbursed Periodic Advances;

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

           (c) those  portions  of each  payment  of  interest  on a  particular
      Mortgage Loan which  represent (i) the  applicable  Servicing Fee and (ii)
      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  Subclasses of Class A
      or Class B Certificates  or the Class M  Certificates  pursuant to Section
      4.02  other  than  Recoveries  covered  by the last  sentence  of  Section
      4.02(d).

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

      Premium  Mortgage Loan: A Mortgage Loan with a Net Mortgage  Interest Rate
of 7.250% or greater.

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

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

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

Distribution Date Occurring In                       Prepayment Shift Percentage

November 1997 through October 2002................                 0%
November 2002 through October 2003................                30%
November 2003 through October 2004................                40%
November 2004 through October 2005................                60%
November 2005 through October 2006................                80%
November 2006 and thereafter......................               100%

      Principal  Adjustment:  In the event  that the  Class M Optimal  Principal
Amount,  Class B-1 Optimal Principal Amount, Class B-2 Optimal Principal Amount,
Class B-3 Optimal Principal Amount,  Class B-4 Optimal Principal Amount or Class
B-5 Optimal  Principal  Amount is calculated  in accordance  with the proviso in
such definition with respect to any Distribution Date, the Principal  Adjustment
for the Class M Certificates or such Class B Subclass shall equal the difference
between  (i) the  amount  that  would  have been  distributed  to such  Class or
Subclass  as  principal  in  accordance   with  Section   4.01(a)(i)   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 or Subclass.

      Principal Balance:  Each of the Class A Subclass Principal  Balances,  the
Class M  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.

      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 sum of
the Class A Subclass  Principal Balances of the Class A-10, Class A-11 and Class
A-12  Certificates  and  (ii)  the sum of (A) the  product  of (1) the  Priority
Percentage,  (2) the Shift  Percentage and (3) the Scheduled  Amount and (B) the
product of (1) the Priority Percentage,  (2) the Prepayment Shift Percentage and
(3) the Unscheduled Principal Amount.

      Priority Percentage: The sum of the Class A Subclass Principal Balances of
the Class  A-10,  Class  A-11 and Class  A-12  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  and Class M Certificates  are
DCR and Moody's.  The Rating Agency for the Class B-1,  Class B-2, Class B-3 and
Class B-4 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,  P-1 in the case of  Moody's  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 DCR,  Aaa in the case of  Moody's,  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.

      Reduction Amount: As defined in Section 4.01(b).

      Relevant Anniversary:  See "Bankruptcy Loss Amount."

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

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

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

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

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

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

      Responsible  Officer:  When used with respect to the Trustee, 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 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.

      Scheduled  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 that amount being multiplied by the
Class A Percentage.

      Scheduled   Certificates:   The  Class   A-5,   Class  A-6  or  Class  A-7
Certificates.

      Scheduled Component: The Class A-8 Scheduled Accrual Component.

      Schedule I Reduction Amount: As defined in Section 4.01(b).

      Schedule II Reduction Amount: As defined in Section 4.01(b).

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

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

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

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

      Servicers:  Each of FT Mortgage  Companies,  Countrywide Home Loans, Inc.,
The  Huntington  Mortgage  Company,  National  City  Mortgage  Company,  Norwest
Mortgage Inc.,  First Bank National  Association,  Citicorp  Mortgage,  Inc. and
Suntrust Mortgage Inc. 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 11.28.

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

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

Distribution Date Occurring In                         Shift Percentage

November 1997 through October 2002..........                    0%
November 2002 and thereafter................                  100%

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

      Single Certificate:  A Certificate of any Class or Subclass that evidences
the smallest permissible  Denomination for such Class or Subclass,  as set forth
in Section 11.27.

      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 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 a Servicing Agreement.

      Special Hazard Loss Amount:  As of any Distribution  Date, an amount equal
to  $4,937,917.43  minus the sum of (i) the aggregate  amount of Special  Hazard
Losses  allocated solely to the Class B Certificates or, following the reduction
of the Class B Principal  Balance to zero, solely to the Class M 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 Trustee.  On and or
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.

      Subclass:  Each  subdivision  of the  Class  A  Certificates,  denominated
respectively  as Class A-1,  Class A-2,  Class A-3,  Class A-4, Class A-5, Class
A-6, Class A-7, Class A-8, Class A-9, Class A-10,  Class A-11, Class A-12, Class
A-PO, Class A-WIO,  Class A-R and Class A-LR and each subdivision of the Class B
Certificates, denominated respectively as Class B-1, Class B-2, Class B-3, Class
B-4 and Class B-5.

      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.

      T.O.P.  Mortgage  Loan:  Any Mortgage Loan that was  originated by Norwest
Mortgage or an  affiliate  thereof in  connection  with the "Title  Option Plus"
program  and which is not  covered  by a title  insurance  policy.  Each  T.O.P.
Mortgage Loan shall be identified as such in the Mortgage Loan Schedule.

      Trust  Estate:  The  corpus  of  the  trust  created  by  this  Agreement,
consisting of the Mortgage Loans,  such amounts as may be held from time to time
in the  Certificate  Account,  and the  rights of the  Trustee  to  receive  the
proceeds of all insurance policies and performance bonds, if any, required to be
maintained  hereunder or under the related Servicing  Agreement,  property which
secured a Mortgage  Loan and which has been acquired by  foreclosure  or deed in
lieu of foreclosure.

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

      Uncertificated  Lower-Tier  Interests:  Any of the Class A-L1, Class A-L5,
Class A-L8PO,  Class A-L8, Class A-L9, Class A-L10,  Class A-LPO,  Class A-LWIO,
Class A-LUR, Class M-L, Class B-L1, Class B-L2, Class B-L3, Class B-L4 and Class
B-L5 Interests.

      Unpaid Interest  Shortfalls:  Each of the Class A Subclass Unpaid Interest
Shortfalls, the Class M Unpaid Interest Shortfall, 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 and the Class B-5
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  that  amount  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.

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

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

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

      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,  (a) the Holders of the Class A
Certificates will  collectively be entitled to the Class A Voting Interest,  (b)
the Holders of the Class M  Certificates  will  collectively  be entitled to the
then applicable  percentage of the aggregate Voting Interest  represented by all
Certificates  equal to the product of (i) the ratio  obtained  by  dividing  the
Class M Principal  Balance by the sum of the Class A Non-PO  Principal  Balance,
the Class M Principal  Balance  and the Class B  Principal  Balance and (ii) the
Non-PO  Voting  Interest  and (c) the Holders of the Class B  Certificates  will
collectively  be  entitled  to the  balance  of the  aggregate  Voting  Interest
represented by all Series 1997-17  Certificates.  The aggregate Voting Interests
of each Subclass of Class A  Certificates  (other than the Class A-4, Class A-PO
and Class  A-WIO  Certificates)  on any date will be equal to the product of (a)
98% of the Class A Voting  Interest  represented by clause (A) of the definition
thereof and (b) the fraction obtained by dividing the Class A Subclass Principal
Balance of such Class A Subclass by the Class A Non-PO Principal Balance on such
date. The aggregate Voting Interests of the Class A-PO  Certificates on any date
will be equal to the Class A Voting  Interest  represented  by clause (B) of the
definition thereof.  With respect to the Class A-4 and Class A-WIO Certificates,
the aggregate  Voting Interest of each such Subclass will be 1% of the amount of
the Class A Voting  interest  on such  date  represented  by  clause  (A) of the
definition of Class A Voting  Interest.  The aggregate  Voting Interests of each
Subclass of Class B Certificates  will equal such Subclass's pro rata portion of
the  Voting  Interest  allocated  to the  Class  B  Certificates  based  on such
Subclass's  outstanding principal balance. Each  Certificateholder of a Class or
Subclass will have a Voting Interest equal to the product of the Voting Interest
to which such Class or  Subclass is  collectively  entitled  and the  Percentage
Interest in such Class or Subclass  represented  by such Holder's  Certificates.
With respect to any provisions hereof providing for action,  consent or approval
of each Class or Subclass of Certificates or specified  Classes or Subclasses of
Certificates,  each  Certificateholder of a Class or Subclass will have a Voting
Interest in such Class or Subclass equal to such Holder's Percentage Interest in
such Class or Subclass.

      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.
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,  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 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 and the  Authenticating  Agent)
shall be proved by the Certificate Register, and neither the Trustee, 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
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,  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  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 Trustee,  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 Trustee 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 Trustee
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
Trustee 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 Trustee within one (1)
year  following  the  Closing  Date any  original  Mortgage or  assignment  of a
Mortgage not delivered to the Trustee on the Closing Date.

      In lieu of recording an  assignment of any Mortgage the Seller may, to the
extent set forth in any Servicing Agreement, deliver or cause to be delivered to
the Trustee the  assignment  of the Mortgage Loan from the Seller to the Trustee
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 Trustee and the Trustee
shall  within  five  Business  Days (or such  other  reasonable  period  of time
mutually  agreed upon by the Master  Servicer and the Trustee) of its receipt of
such  notice  deliver  each  previously  unrecorded  assignment  to the  related
Servicer for recordation.

Section 2.02.     Acceptance by Trustee.

      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 Trustee  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 Trustee 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 Trustee  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 Trustee  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
Trustee'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 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
Trustee 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, Master Servicer
or Trustee  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 Trustee 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 Trustee 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  or the  Trustee  on  behalf of the  Certificateholders.  The
failure of the Trustee 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 Trustee 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 Trustee  appoints a Custodian to hold
the Mortgage Notes, the Mortgages,  the assignments and other documents  related
to the  Mortgage  Loans  received by 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 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
         Servicer or any of its assets;

                 (iii) This Agreement, assuming due authorization, execution and
         delivery by the Trustee 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 Trustee or the Custodian.

      (b) The Seller  hereby  represents  and  warrants  to the  Trustee 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 Trustee 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
         Trustee 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 Trustee 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 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 identified on
         the Mortgage Loan  Schedule as a T.O.P.  Mortgage Loan and any Mortgage
         Loan  secured by  Mortgaged  Property  located in Iowa,  as to which an
         opinion of counsel of the type  customarily  rendered  in such State 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 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 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 Flood  Disaster
         Protection  Act of 1973;  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 of the Code;

                (xxiv) With respect to each Mortgage where a lost note affidavit
         has been  delivered  to the  Trustee 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 Trustee and shall inure to the benefit of the Trustee
notwithstanding any restrictive or qualified endorsement or assignment.

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

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

      The Seller hereby designates the Subclasses of Class A Certificates (other
than the  Class  A-8,  Class  A-R and  Class  A-LR  Certificates),  the  Class M
Certificates,  the  Subclasses  of  Class B  Certificates  and  each  Class  A-8
Component as classes of "regular interests" and the Class A-R Certificate as the
single class of "residual  interest" in the Upper-Tier REMIC for the purposes of
Code Sections 860G(a)(1) and 860G(a)(2), respectively. The Seller hereby further
designates the Class AL-1 Interest,  Class A-L5 Interest, Class A-L8PO Interest,
Class A-L8 Interest,  Class A-L9 Interest,  Class A-L10,  Class A-LPO  Interest,
Class A-LWIO  Interest,  Class A-LUR Interest,  Class B-L1 Interest,  Class B-L2
Interest,  Class B-L3  Interest,  Class B-L4  Interest,  Class B-L5 Interest and
Class M-L  Interest  as  classes  of  "regular  interests"  and the  Class  A-LR
Certificate as the single class of "residual  interest" in the Lower-Tier  REMIC
for the purposes of Code Sections 860G(a)(1) and 860G(a)(2),  respectively.  The
Closing Date is hereby designated as the "Startup Day" of each of the Upper-Tier
REMIC and Lower-Tier  REMIC within the meaning of Code Section  860G(a)(9).  The
"latest possible maturity date" of the regular interests in the Upper-Tier REMIC
and  Lower-Tier  REMIC  is  November  25,  2027  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,  and shall,  in  addition,  deposit  into the
Certificate  Account the following amounts,  in the case of amounts specified in
clause  (i),  not later than the  Distribution  Date on which such  amounts  are
required to be distributed to Certificateholders and, in the case of the amounts
specified in clause (ii), not later than the Business Day next following the day
of receipt and posting by the Master Servicer:

                  (i)  Periodic Advances pursuant to Section 3.03(a) made by the
         Master  Servicer  or the Trustee, if any; and

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

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

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  Trustee or any
         Servicer  for  Periodic  Advances  made by the Master  Servicer  or the
         Trustee  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
         Trustee  for any  Periodic Advances  determined  in good  faith to have
         become Nonrecoverable Advances;

                 (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
         Trustee (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 Net
         Liquidation  Proceeds  allocable  to interest  the amount of any unpaid
         Master  Servicing  Fee or Servicing  Fee (as adjusted  pursuant to such
         Servicer's  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; and

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

      (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 Trustee.

      (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  Trustee  shall,  to the extent  required by Section  8.15,  make such
Periodic  Advance to the extent provided  hereby,  provided that the Trustee has
previously  received the  certificate  of the Master  Servicer  described in the
following  sentence.  The Master  Servicer  shall  certify to the  Trustee  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,  (iii) the  amount  that the  Trustee 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 Trustee or Master Servicer shall
be  deposited  in the  Certificate  Account on the  related  Distribution  Date.
Notwithstanding the foregoing,  neither the Master Servicer nor the Trustee will
be obligated  to make a Periodic  Advance  that it  reasonably  believes to be a
Nonrecoverable  Advance. The Trustee 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  Trustee  that such
failure has  occurred.  Upon receipt of such  certification,  the Trustee  shall
advance  such  funds and take such steps as are  necessary  to pay such taxes or
insurance premiums.

      (c) The Master  Servicer  and the  Trustee  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 Trustee 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  Trustee,  withdraw
from the  Certificate  Account and remit to the Trustee any amounts to which the
Trustee 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 Trustee  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.     Trustee 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 Trustee  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  Trustee.  The
Trustee  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 Trustee and the  Trustee  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
Trustee 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 Trustee 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 Trustee to the Master  Servicer
or such Servicer, as appropriate.

      Upon written  certification of the Master Servicer or the Servicer of such
Mortgage Loan,  the Trustee 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 Trustee and a  statement  as to the reason  such  documents  or
pleadings  are  required  and that the  execution  and  delivery  thereof by the
Trustee 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; Annual Compliance Statements.

      (a) Not later  than 15 days  after  each  Distribution  Date,  the  Master
Servicer  shall  deliver to the Trustee 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 Trustee to any Certificateholder upon written
request, provided such statement is delivered, or caused to be delivered, by the
Master Servicer to the Trustee.

      (b) The Master Servicer shall deliver to the Trustee 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  Trustee  to  any
Certificateholder  upon written request  provided such certificate is delivered,
or caused to be delivered, by the Master Servicer to the Trustee.

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 Trustee 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 Trustee  shall have no further  responsibility  with regard to such
Owner  Mortgage Loan File or Servicer  Mortgage Loan File.  Neither the Trustee,
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  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 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  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 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,  the
Trustee  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  or the  Trustee,  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 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  Certificateholders'  reliance  on the  Master  Servicer,  and  in a  manner
consistent with the terms and provisions of any insurance  policy required to be
maintained by the Master Servicer or any Servicer  pursuant to this Agreement or
any Servicing Agreement.  The Master Servicer  acknowledges that prior to taking
certain actions required to service the Mortgage Loans, each Servicing Agreement
provides that the Servicer  thereunder  must notify,  consult  with,  obtain the
consent of or otherwise  follow the  instructions  of the Master  Servicer.  The
Master Servicer is also given  authority to waive  compliance by a Servicer with
certain provisions of its Servicing Agreement. In each such instance, the Master
Servicer  shall  promptly  instruct such  Servicer or otherwise  respond to such
Servicer's  request. In no event will the Master Servicer instruct such Servicer
to take any  action,  give any  consent  to  action  by such  Servicer  or waive
compliance  by such Servicer  with any  provision of such  Servicer's  Servicing
Agreement if any resulting  action or failure to act would be inconsistent  with
the  requirements  of the Rating  Agencies that rated the  Certificates or would
otherwise have an adverse effect on the  Certificateholders.  Any such action or
failure   to  act   shall  be  deemed   to  have  an   adverse   effect  on  the
Certificateholders  if such  action or failure to act either  results in (i) the
downgrading  of the rating  assigned by any Rating  Agency to the  Certificates,
(ii) the loss by the Upper-Tier  REMIC or the  Lower-Tier  REMIC of REMIC status
for  federal  income tax  purposes  or (iii) the  imposition  of any  Prohibited
Transaction  Tax or any  federal  taxes on  either  the  Upper-Tier  REMIC,  the
Lower-Tier REMIC or the Trust Estate.  The Master Servicer shall have full power
and  authority  in its sole  discretion  to take any action with  respect to the
Trust  Estate  as may be  necessary  or  advisable  to avoid  the  circumstances
specified including clause (ii) or (iii) of the preceding sentence.

      For the purposes of  determining  whether any  modification  of a Mortgage
Loan shall be permitted by the Trustee 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  Trustee 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  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 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,  at its option,  to repurchase 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;  provided,  however,  that the Cut-Off Date Principal
Balances of the Mortgage Loans repurchased  pursuant to this provision shall not
exceed 2.5% of the Cut-Off  Date  Aggregate  Principal  Balance of the  Mortgage
Loans. 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  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 Trustee the certification  required by Section 3.04 and the
Trustee 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 Trustee 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
Trustee shall have no further  responsibility with regard to such Owner Mortgage
Loan File or  Servicer  Mortgage  Loan File.  Neither  the  Trustee,  the Master
Servicer  nor any  Servicer,  acting  on behalf of the  Trustee,  shall  provide
financing from the Trust Estate to any purchaser of a Mortgage Loan.

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

      The Master Servicer may enter into a special  servicing  agreement with an
unaffiliated  holder of 100%  Percentage  Interest  of a Class B  Subclass  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 Trustee is obligated to
make an advance  pursuant to Section 3.03 and (ii) the Trustee  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  Trustee  shall  terminate  the  Norwest  Servicing  Agreement  without  the
recommendation  of the Master Servicer.  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 attorneys' fees)
arising out of, or assessed  against the Trustee in connection with  termination
of such  Servicing  Agreement at the  direction of the Master  Servicer.  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 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.     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-8 Certificates),  the Class M Certificates and the Class
B-1 and Class B-2 Certificates  pursuant to the Securities Exchange Act of 1934,
as amended.


<PAGE>

                                   ARTICLE IV

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

Section 4.01.     Distributions.

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

      first, to the Subclasses of Class A Certificates,  pro rata based on their
respective  Class A Subclass  Interest Accrual Amounts in an aggregate amount up
to the sum of the Class A Subclass Interest Accrual Amounts with respect to such
Distribution  Date;  provided that (i) prior to the Class A-8 Scheduled  Accrual
Component  Accretion  Termination Date, an amount equal to the amount that would
otherwise be  distributable in respect of interest to the Class A-8 Certificates
with  respect to the Class A-8  Scheduled  Accrual  Component  pursuant  to this
provision will be distributed  in reduction of the Component  Principal  Balance
thereof  and  the  Class  A  Subclass   Principal   Balances  of  the  Scheduled
Certificates,  and (ii) prior to the Class A-9  Accretion  Termination  Date, an
amount equal to the amount that would otherwise be  distributable  in respect of
interest to the Class A-9  Certificates  pursuant to this provision will instead
be distributed in reduction of the Class A Subclass  Principal  Balance thereof,
the Class A Subclass  Principal  Balances of the Scheduled  Certificates and the
Component  Principal  Balance of the Class A-8 Scheduled Accrual  Component,  in
each case in accordance with Section 4.01(b);

      second, to the Subclasses of Class A Certificates, pro rata based on their
respective Class A Subclass Unpaid Interest Shortfall, in an aggregate amount up
to the sum of the Class A Subclass Unpaid Interest Shortfalls; provided that (i)
prior to the Class A-8 Scheduled Accrual Component  Accretion  Termination Date,
an amount equal to the amount that would otherwise be  distributable  in respect
of interest  shortfalls to the Class A-8 Certificates  with respect to the Class
A-8 Scheduled Accrual  Component  pursuant to this provision will be distributed
in reduction of the Component Principal Balance thereof and the Class A Subclass
Principal Balances of the Scheduled Certificates and (ii) prior to the Class A-9
Accretion  Termination  Date, an amount equal to the amount that would otherwise
be distributable in respect of interest shortfalls to the Class A-9 Certificates
pursuant to this provision will instead be distributed in reduction of the Class
A Subclass Principal Balance thereof, the Class A Subclass Principal Balances of
the Scheduled  Certificates and the Component Principal Balance of the Class A-8
Scheduled Accrual Component, in each case in accordance with Section 4.01(b);

      third,  concurrently,  to the Class A  Certificates  (other than the Class
A-PO  Certificates)  and the Class A-PO  Certificates,  pro rata, based on their
respective  Class A Non-PO  Optimal  Principal  Amount  and Class  A-PO  Optimal
Principal Amount, (A) to the Subclasses 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
Subclasses 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-5  Certificates  pursuant to  Paragraph
twenty-second, below, second to the Class B-4 Certificates pursuant to Paragraph
nineteenth,  below,  third to the Class B-3  Certificates  pursuant to Paragraph
sixteenth,  below,  fourth to the Class B-2  Certificates  pursuant to Paragraph
thirteenth,  below,  fifth to the Class B-1  Certificates  pursuant to Paragraph
tenth below, and sixth to the Class M Certificates pursuant to Paragraph seventh
below;

      fifth, to the Class M Certificates in an amount up to the Class M Interest
Accrual Amount with respect to such Distribution Date;

      sixth,  to the Class M Certificates  in an amount up to the Class M Unpaid
Interest Shortfall;

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

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

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

      tenth,  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 tenth 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;

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

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

      thirteenth, 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 thirteenth 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;

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

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

      sixteenth,  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 sixteenth 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;

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

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

      nineteenth, 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 nineteenth 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;

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

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

      twenty-second,  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  twenty-second 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; and

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

      Notwithstanding  the  foregoing,  after the Principal  Balance or notional
amount of any Class or Subclass  (other  than the Class A-8,  Class A-R or Class
A-LR  Certificates)  has been  reduced  to zero or, in the case of the Class A-8
Certificates,  after the latter to occur of (i) the Class A  Subclass  Principal
Balance  of such  Subclass  has been  reduced to zero or (ii) the Class A-8 IO A
Component  Notional Amount,  Class A-8 IO B Component  Notional Amount and Class
A-8 IO C  Component  Notional  Amount have been  reduced to zero,  such Class or
Subclass 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-LR
Certificate.

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

      (ii) Distributions on the  Uncertificated  Lower-Tier  Interests.  On each
Distribution  Date,  each  Uncertificated   Lower-Tier  Interest  shall  receive
distributions  in  respect  of  principal  in an amount  equal to the  amount of
principal distributed to its respective Corresponding Upper-Tier Class, Classes,
Component or Components as provided  herein.  On each  Distribution  Date,  each
Uncertificated  Lower-Tier  Interest shall receive  distributions  in respect of
interest (or, in the case of the Class A-L8 Interest and Class A-L9 Interest, as
described below shall have such amounts added to their principal balances) in an
amount  equal to (i)  Class A  Subclass  Interest  Accrual  Amount  and  Class A
Subclass Unpaid Interest  Shortfall,  (ii) Component Interest Accrual Amount and
Component Unpaid Interest  Shortfall,  (iii) Class M Interest Accrual Amount and
Class M Unpaid  Interest  Shortfall  or (iv) Class B Subclass  Interest  Accrual
Amount and Class B Subclass  Unpaid Interest  Shortfall,  as the case may be, in
respect of its Corresponding Upper-Tier Class, Classes, Component or Components,
in each case to the extent  actually  distributed  (or, in the case of the Class
A-8 Scheduled Accrual  Component and the Class A-9 Certificates,  added to their
Component Principal Balance or Class A Subclass Principal Balance) thereon. Such
amounts  distributed to the  Uncertificated  Lower-Tier  Interests in respect of
principal  and interest  with respect to any  Distribution  Date are referred to
herein collectively as the "Lower-Tier Distribution Amount."

      As of any date, the principal  balance of each  Uncertificated  Lower-Tier
Interest  (other  than the Class  A-LWIO  Interest)  equals the Class A Subclass
Principal Balances,  Component Principal Balances,  Class M Principal Balance or
Class B  Subclass  Principal  Balance,  as the  case may be,  of the  respective
Corresponding  Upper-Tier  Class,  Classes,  Component or Components.  The Class
A-LWIO  Interest has no  principal  balance.  The  notional  amount of the Class
A-LWIO  Interest  equals the notional  amounts of its  Corresponding  Upper-Tier
Class, Classes,  Component or Components.  The initial principal balance of each
Uncertificated Lower-Tier Interest (other than the Class A-LWIO Interest) equals
the Original Class A Subclass Principal  Balances,  Original Component Principal
Balances,  Original  Class M Principal  Balance,  Original  Class B-1  Principal
Balance,  Original  Class B-2 Principal  Balance,  Original  Class B-3 Principal
Balance,  Original  Class B-4 Principal  Balance or Original Class B-5 Principal
Balance as the case may be, of the respective  Corresponding  Upper-Tier  Class,
Classes,  Component  or  Components.  The initial  notional  amount of the Class
A-LWIO  Interest  equals  the  initial  notional  amounts  of its  Corresponding
Upper-Tier Class, Classes, Component or Components.

      The  pass-through  rate with respect to the Class A-L10 Interest and Class
A-LUR Interest shall be 7.250% per annum. The pass-through  rate with respect to
the Class A-L1 Interest, Class A-L5 Interest, Class A-L8 Interest and Class A-L9
Interest  shall be 7.500% per annum.  Prior to the Class A-8  Scheduled  Accrual
Component  Accretion  Termination  Date,  interest will accrue in respect of the
Class A-L8  Interest and will be added to the principal  balance  thereof to the
same  extent  that  interest  accrues  and is added to the  Component  Principal
Balance of the Class A-8  Scheduled  Accrual  Component.  Prior to the Class A-9
Accretion  Termination  Date,  interest will accrue in respect of the Class A-L9
Interest and will be added to the principal  balance  thereof to the same extent
that interest accrues and is added to the Class A Subclass  Principal Balance of
the Class A-9  Certificates.  The  pass-through  rate with  respect to the Class
A-LWIO  Interest  shall be the Class A-WIO  Pass-Through  Rate. The Class A-8LPO
Interest is a  principal-only  interest and is not entitled to  distributions of
interest.  The Class A-LPO  Interest  is a  principal-only  interest  and is not
entitled to distributions of interest.  Any  Non-Supported  Interest  Shortfalls
will be  allocated  to  each  Uncertificated  Lower-Tier  Interest  in the  same
relative proportions as interest is allocated to such Uncertificated  Lower-Tier
Interest.

      (b)  The  Class  A-4  and  Class  A-WIO   Certificates  are  interest-only
Certificates and are not entitled to distributions in respect of principal.

      On each  Distribution  Date occurring  prior to the  Cross-Over  Date, the
Class A  Non-PO  Principal  Distribution  Amount  will be  allocated  among  and
distributed  in  reduction  of the Class A Subclass  Principal  Balances  of the
Subclasses of Class A  Certificates  (other than the Class A Subclass  Principal
Balance  of the  Class  A-PO  Certificates)  in the  following  order  from  the
designated amounts:

I.  The Class A Non-PO Principal Amount, as follows:

      first,  concurrently,  to the  Class  A-10,  Class  A-11  and  Class  A-12
Certificates, pro rata, up to the Priority Amount;

      second,  concurrently,  until  all  amounts  required  to be  paid on such
Distribution Date under (ii)(a), (b) and (c) below have been made, as follows:

      (i)     3.3336452971% to the Class A-8 PO Component,  until the  Component
              Principal Balance thereof has been reduced to zero; and

      (ii)    96.6663547029%, sequentially, as follows:

              (a) concurrently,  50.8663893347%  sequentially,  to the Class A-1
              and Class A-2 Certificates,  in that order, and  49.1336106653% to
              the Class A-3  Certificates,  up to their respective PAC Principal
              Amounts for such Distribution Date;

              (b)  concurrently,  to the  Class  A-5,  Class  A-6 and  Class A-7
              Certificates,   pro  rata,  up  to  their  respective  Schedule  I
              Reduction Amounts for such Distribution Date;

              (c)  to the  Class  A-8  Scheduled  Accrual  Component,  up to its
              Reduction Amount for such Distribution Date;

II.   On  each  Distribution  Date  occurring  prior to the Class A-8  Scheduled
Accrual Component  Accretion  Termination Date, an amount equal to the Class A-8
Scheduled Accrual Component  Distribution  Amount, if any, for such Distribution
Date, as follows:

      third, concurrently, as follows:

      (i)     65%, sequentially, as follows:

              (a)  concurrently,  to the  Class  A-5,  Class  A-6 and  Class A-7
              Certificates,   pro  rata,  up  to  their  respective  Schedule  I
              Reduction Amounts for such Distribution Date;

              (b) to the Class A-8 Scheduled Accrual  Component,  without regard
              to its Reduction  Amount,  until the Component  Principal  Balance
              thereof has been reduced to zero;

      (ii)    35%, sequentially, as follows:

              (a)  concurrently,  to the  Class  A-5,  Class  A-6 and  Class A-7
              Certificates,  pro  rata,  up  to  their  respective  Schedule  II
              Reduction Amounts for such Distribution Date;

              (b) to the Class A-8 Scheduled Accrual  Component,  without regard
              to its Reduction  Amount,  until the Component  Principal  Balance
              thereof has been reduced to zero;


III.  On each  Distribution  Date  occurring  prior to the Class  A-9  Accretion
Termination Date, an amount equal to the Class A-9 Accrual  Distribution Amount,
if any, for such Distribution Date, as follows:

      fourth, sequentially, as follows:

      (i)     concurrently,   to  the  Class  A-5,   Class  A-6  and  Class  A-7
              Certificates,   pro  rata,  up  to  their  respective  Schedule  I
              Reduction Amounts for such Distribution Date;

      (ii)    to the Class A-8 Scheduled Accrual Component,  up to its Reduction
              Amount for such Distribution Date;

      (iii)   to  the  Class  A-9  Certificates,  until  the  Class  A  Subclass
              Principal Balance thereof has been reduced to zero;

IV.   The remaining Class A Non-PO Principal Amount, as follows:

      fifth, concurrently,

      (i)     3.3336452971%  to the Class A-8 PO Component,  until the Component
              Principal Balance thereof has been reduced to zero; and

      (ii)    96.6663547029%, sequentially as follows:

              (a) to the Class  A-9  Certificates,  until  the Class A  Subclass
              Principal Balance thereof has been reduced to zero;

              (b)  concurrently,  to the  Class  A-5,  Class  A-6 and  Class A-7
              Certificates,  pro rata,  without  regard to their  Schedule  I or
              Schedule  II  Reduction  Amounts,   until  the  Class  A  Subclass
              Principal Balance of each such Subclass has been reduced to zero;

              (c) to the Class A-8 Scheduled Accrual  Component,  without regard
              to its Reduction  Amount,  until the Component  Principal  Balance
              thereof has been reduced to zero;

              (d) concurrently, as follows:

                  (A) 50.8663893347%,  sequentially,  to the Class A-1 and Class
                  A-2  Certificates,  in that  order,  without  regard  to their
                  respective PAC Principal Amounts for such  Distribution  Date,
                  until  the Class A  Subclass  Principal  Balance  of each such
                  Subclass has been reduced to zero;

                  (B)  49.1336106653%  to the  Class A-3  Certificates,  without
                  regard to their PAC  Principal  Amount  for such  Distribution
                  Date, until the Class A Subclass Principal Balance thereof has
                  been reduced to zero;

      sixth, sequentially, to the Class A-R and Class A-LR Certificates, in that
order,  until the Class A Subclass  Principal  Balance of each such Subclass has
been reduced to zero; and

      seventh,  concurrently,  to the Class  A-10,  Class  A-11 and  Class  A-12
Certificates, pro rata, without regard to the Priority Amount, until the Class A
Subclass Principal Balance of each such Subclass has been reduced to zero.

      As used above, the "PAC Principal  Amount" for any  Distribution  Date and
any of the PAC  Certificates  means the amount,  if any,  that would  reduce the
Class A Subclass  Principal  Balance of such  Subclass to the  percentage of its
Original Class A Subclass  Principal Balance shown in the tables set forth below
with respect to such Distribution Date.

      As used above, the "Schedule I Reduction Amount" for any Distribution Date
and for any Subclass of Scheduled  Certificates  means the amount,  if any, that
would  reduce the Class A Subclass  Principal  Balance of such  Subclass  to the
percentage  of its  Original  Class A Subclass  Principal  Balance  shown in the
Schedule I tables with respect to such Distribution Date.

      As used above,  the  "Schedule II Reduction  Amount" for any  Distribution
Date and for any Subclass of Scheduled  Certificates  means the amount,  if any,
that would reduce the Class A Subclass Principal Balance of such Subclass to the
percentage  of its  Original  Class A Subclass  Principal  Balance  shown in the
Schedule II tables with respect to such Distribution Date.

      As used above, the "Reduction  Amount" for any  Distribution  Date and for
the Class A-8 Scheduled  Accrual  Component means the amount, if any, that would
reduce the Component  Principal  Balance of such  Component to the percentage of
its Initial Component  Principal Balance shown in the table with respect to such
Distribution Date.

      The  following  tables set forth for each  Distribution  Date the  planned
Class A Subclass  Principal  Balances for the PAC Certificates and the scheduled
Class A Subclass  Principal  Balances and  Component  Principal  Balance for the
Scheduled Certificates and Scheduled Component, expressed as a percentage of the
Original  Class A Subclass  Principal  Balance or Original  Component  Principal
Balance of such Subclass or Component.


<PAGE>


                   Planned Class A Subclass Principal Balances
           as Percentages of Initial ClassA Subclas Principal Balance

                             Class A-1 Certificates

                         Percentage of                          Percentage of
                        Initial Class A                        Initial Class A
                           Subclass                               Subclass
Distribution Date      Principal Balance   Distribution Date   Principal Balance
- ---------------------  -----------------   -----------------   -----------------
Up to and including
September 1998.......     100.00000000     November 1999.....      68.03197557
October 1998.........      98.29367393     December 1999.....      65.13125730
November 1998........      96.49440853     January 2000......      62.15856247
December 1998........      94.60298743     February 2000.....      59.12116663
January 1999.........      92.62018017     March 2000........      56.04281110
February 1999........      90.54687583     April 2000........      52.96705687
March 1999...........      88.38416210     May 2000..........      49.90673187
April 1999...........      86.13323077     June 2000.........      46.86175740
May 1999.............      83.79536843     July 2000.........      43.83205510
June 1999............      81.37229230     August 2000.......      40.81754713
July 1999............      78.86532407     September 2000....      37.81815600
August 1999..........      76.27587990     October 2000......      34.83380467
September 1999.......      73.60606117     November 2000.....      31.86441643
October 1999.........      70.85751770     December 2000.....      28.90991507




                                 Percentage of
                                Initial Class A
                                   Subclass
   Distribution Date           Principal Balance
- -------------------------      -----------------
January 2001..........             25.97022470
February 2001.........             23.04526990
March 2001............             20.13497553
April 2001............             17.23926700
May 2001..............             14.35807003
June 2001.............             11.49131070
July 2001.............              8.63891553
August 2001...........              5.80081147
September 2001........              2.97692573
October 2001..........              0.16718603
November 2001.........
and thereafter........              0.00000000



<PAGE>



                             Class A-2 Certificates

                        Percentage of                          Percentage of
                        Initial Class A                       Initial Class A
                           Subclass                               Subclass
Distribution Date     Principal Balance   Distribution Date   Principal Balance
- -------------------   -----------------   -----------------   -----------------
Up to and including
October 2001.......      100.00000000      June 2002........     60.55339211
November 2001......       95.24601272      July 2002........     55.69606155
December 2001......       90.21497070      August 2002......     50.86304534
January 2002.......       85.20912546      September 2002...     46.05422005
February 2002......       80.22834895      October 2002.....     41.26946295
March 2002.........       75.27251378      November 2002....     37.10076421
April 2002.........       70.34149316      December 2002....     32.95594062
May 2002...........       65.43516109      January 2003.....     28.83487557



                                  Percentage of
                                 Initial Class A
                                     Subclass
   Distribution Date            Principal Balance
- -------------------------       -----------------
February 2003.........              24.73745307
March 2003............              20.66355791
April 2003............              16.61307548
May 2003..............              12.58589178
June 2003.............               8.58189341
July 2003.............               4.60096769
August 2003...........               0.64300253
September 2003
and thereafter........               0.00000000



<PAGE>


                   Planned Class A Subclass Principal Balances
           as Percentages of Initial ClassA Subclas Principal Balance

                             Class A-3 Certificates

                          Percentage of                         Percentage of
                         Initial Class A                       Initial Class A
                            Subclass                              Subclass
 Distribution Date     Principal Balance   Distribution Date   Principal Balance
- --------------------   -----------------   -----------------   -----------------
Up to and including
September 1998......    100.00000000       May 2000.........    67.74211596
October 1998........     98.90120029       June 2000........    65.78128493
November 1998.......     97.74255171       July 2000........    63.83028856
December 1998.......     96.52455884       August 2000......    61.88907664
January 1999........     95.24771727       September 2000...    59.95759933
February 1999.......     93.91259953       October 2000.....    58.03580700
March 1999..........     92.51990604       November 2000....    56.12365024
April 1999..........     91.07040427       December 2000....    54.22107998
May 1999............     89.56492269       January 2001.....    52.32804733
June 1999...........     88.00456713       February 2001....    50.44450376
July 1999...........     86.39018871       March 2001.......    48.57040089
August 1999.........     84.72269940       April 2001.......    46.70569064
September 1999......     83.00345236       May 2001.........    44.85032522
October 1999........     81.23351002       June 2001........    43.00425700
November 1999.......     79.41398389       July 2001........    41.16743869
December 1999.......     77.54604758       August 2001......    39.33982322
January 2000........     75.63176151       September 2001...    37.52136373
February 2000.......     73.67581082       October 2001.....    35.71201369
March 2000..........     71.69348387       November 2001....    33.91172671
April 2000..........     69.71283204       December 2001....    32.12045676




                               Percentage of
                              Initial Class A
 Distribution Date                Subclass
                             Principal Balance
- ---------------------        -----------------
January 2002........              30.33815793
February 2002.......              28.56478469
March 2002..........              26.80029162
April 2002..........              25.04463362
May 2002............              23.29776582
June 2002...........              21.55964358
July 2002...........              19.83022244
August 2002.........              18.10945829
September 2002......              16.39730716
October 2002........              14.69372533
November 2002.......              13.20948711
December 2002.......              11.73374949
January 2003........              10.26647091
February 2003.......               8.80761016
March 2003..........               7.35712613
April 2003..........               5.91497807
May 2003............               4.48112536
June 2003...........               3.05552762
July 2003...........               1.63814478
August 2003.........               0.22893689
September 2003
and thereafter......               0.00000000





<PAGE>

     Scheduled Class A Subclass Principal Balances as Percentages of Initial
                       Class A Subclass Principal Balance

                 Class A-5, Class A-6 and Class A-7 Certificates

                                   Schedule I


                         Percentage of                           Percentage of
                        Initial Class A                        Initial Class A
                           Subclass                                 Subclass
Distribution Date     Principal Balance    Distribution Date   Principal Balance
- -------------------   -----------------    -----------------   -----------------
November 1997......     99.34157393         March 2000......     62.58925106
December 1997......     98.57568595         April 2000......     60.98678990
January 1998.......     97.70252032         May 2000........     59.41202095
February 1998......     96.72238319         June 2000.......     57.86453848
March 1998.........     95.63570301         July 2000.......     56.34394192
April 1998.........     94.44303061         August 2000.....     54.84983569
May 1998...........     93.14511309         September 2000..     53.38182920
June 1998..........     91.74274293         October 2000....     51.93953676
July 1998..........     90.23683387         November 2000...     50.52257752
August 1998........     88.62842014         December 2000...     49.13057540
September 1998.....     86.91865546         January 2001....     47.76315909
October 1998.......     85.94510142         February 2001...     46.41996191
November 1998......     84.91840732         March 2001......     45.10062180
December 1998......     83.83976007         April 2001......     43.80478125
January 1999.......     82.71039644         May 2001........     42.53208726
February 1999......     81.53168491         June 2001.......     41.28219125
March 1999.........     80.30516982         July 2001.......     40.05474903
April 1999.........     79.03250829         August 2001.....     38.84942074
May 1999...........     77.71546056         September 2001..     37.66587080
June 1999..........     76.35608786         October 2001....     36.50376784
July 1999..........     74.95624696         November 2001...     35.36278468
August 1999........     73.51788952         December 2001...     34.24259823
September 1999.....     72.04340792         January 2002....     33.14288951
October 1999.......     70.53494592         February 2002...     32.06334350
November 1999......     68.99471761         March 2002......     31.00364917
December 1999......     67.42501523         April 2002......     29.96349944
January 2000.......     65.82895562         May 2002........     28.94259105
February 2000......     64.21202801         June 2002.......     27.94062456


                                 Percentage of
                                Initial Class A
                                   Subclass
  Distribution Date            Principal Balance
- -----------------------        -----------------
July 2002.............            26.95730434
August 2002...........            25.99233844
September 2002........            25.04543863
October 2002..........            24.11632027
November 2002.........            23.33970523
December 2002.........            22.57932258
January 2003..........            21.83490050
February 2003.........            21.10617062
March 2003............            20.39286796
April 2003............            19.69473090
May 2003..............            19.01150109
June 2003.............            18.34292348
July 2003.............            17.68874624
August 2003...........            17.04872068
September 2003........            15.53049594
October 2003..........            13.85785417
November 2003.........            12.27909459
December 2003.........            10.71882198
January 2004..........             9.17677793
February 2004.........             7.65270712
March 2004............             6.14635729
April 2004............             4.65747919
May 2004..............             3.18582653
June 2004.............             1.73115598
July 2004.............             0.29322709
August 2004
and thereafter........             0.00000000

<PAGE>



     Scheduled Class A Subclass Principal Balances as Percentages of Initial
                       Class A Subclass Principal Balance

                 Class A-5, Class A-6 and Class A-7 Certificates

                                   Schedule II

                        Percentage of                           Percentage of
                       Initial Class A                         Initial Class A
                          Subclass                                 Subclass
Distribution Date     Principal Balance    Distribution Date   Principal Balance
- -------------------   -----------------    -----------------   -----------------
November 1997          99.37480004          June 2000           63.70203155
December 1997          98.65392794          July 2000           62.42343786
January 1998           97.83754949          August 2000         61.16453674
February 1998          96.92592700          September 2000      59.92506147
March 1998             95.91941953          October 2000        58.70474832
April 1998             94.81848296          November 2000       57.50333647
May 1998               93.62373504          December 2000       56.32056805
June 1998              92.33582271          January 2001        55.15618803
July 1998              90.95548881          February 2001       54.00994425
August 1998            89.48357147          March 2001          52.88158734
September 1998         87.92100337          April 2001          51.77087072
October 1998           87.10510062          May 2001            50.67755058
November 1998          86.24624278          June 2001           49.60138579
December 1998          85.34531586          July 2001           48.54213794
January 1999           84.40324066          August 2001         47.49957128
February 1999          83.42103840          September 2001      46.47345267
March 1999             82.39986647          October 2001        45.46355160
April 1999             81.34096850          November 2001       44.46964008
May 1999               80.24566718          December 2001       43.49149272
June 1999              79.11552326          January 2002        42.52888660
July 1999              77.95193135          February 2002       41.58160132
August 1999            76.75635952          March 2002          40.64941893
September 1999         75.53062745          April 2002          39.73212387
October 1999           74.27635459          May 2002            38.82950305
November 1999          72.99521577          June 2002           37.94134571
December 1999          71.68894795          July 2002           37.06744344
January 2000           70.35995075          August 2002         36.20759020
February 2000          69.01253400          September 2002      35.36158218
March 2000             67.65868050          October 2002        34.52921790
April 2000             66.31937857          November 2002       33.81746406
May 2000               65.00058753          December 2002       33.11821685



                               Percentage of
                              Initial Class A
                                  Subclass
Distribution Date            Principal Balance
- --------------------         -----------------
January 2003                      32.43128264
February 2003                     31.75646995
March 2003                        31.09358943
April 2003                        30.44245388
May 2003                          29.80287813
June 2003                         29.17467911
July 2003                         28.55767577
August 2003                       27.95168910
September 2003                    26.46443666
October 2003                      24.81976799
November 2003                     23.25762058
December 2003                     21.71124864
January 2004                      20.18045629
February 2004                     18.66504969
March 2004                        17.16483699
April 2004                        15.67962837
May 2004                          14.20923595
June 2004                         12.75347377
July 2004                         11.31215783
August 2004                        9.88510602
September 2004                     8.47213810
October 2004                       7.07307570
November 2004                      5.81111189
December 2004                      4.56107041
January 2005                       3.32279084
February 2005                      2.09611447
March 2005                         0.88088421
April 2005
and thereafter                     0.00000000


<PAGE>


                  Scheduled Class A Subclass Principal Balance
          as Percentages of Initial Class A Subclass Principal Balance

                      Class A-8 Scheduled Accrual Component

                       Percentage of                             Percentage of
                      Initial Class A                           Initial Class A
                        Subclass                                   Subclass
Distribution Date    Principal Balance   Distribution Date     Principal Balance
- -----------------    -----------------   -----------------     -----------------
November 1997.....     100.40625000      November 2001...       121.97662550
December 1997.....     100.81415040      December 2001...       122.47215550
January 1998......     101.22370790      January 2002....       122.96969870
February 1998.....     101.63492920      February 2002...       123.46926310
March 1998........     102.04782110      March 2002......       123.97085700
April 1998........     102.46239040      April 2002......       124.47448860
May 1998..........     102.87864380      May 2002........       124.98016620
June 1998.........     103.29658830      June 2002.......       125.48789810
July 1998.........     103.71623070      July 2002.......       125.99769270
August 1998.......     104.13757790      August 2002.....       126.50955830
September 1998....     104.56063680      September 2002..       127.02350340
October 1998......     104.98541440      October 2002....       127.53953640
November 1998.....     105.41191760      November 2002...       128.05766570
December 1998.....     105.84015350      December 2002...       128.57790000
January 1999......     106.27012920      January 2003....       129.10024770
February 1999.....     106.70185160      February 2003...       129.62471750
March 1999........     107.13532790      March 2003......       130.15131790
April 1999........     107.57056510      April 2003......       130.68005760
May 1999..........     108.00757050      May 2003........       131.21094530
June 1999.........     108.44635130      June 2003.......       131.74398980
July 1999.........     108.88691460      July 2003.......       132.27919980
August 1999.......     109.32926770      August 2003.....       132.81658400
September 1999....     109.77341780      September 2003..       133.35615140
October 1999......     110.21937230      October 2003....       133.89791080
November 1999.....     110.66713860      November 2003...       134.44187100
December 1999.....     111.11672380      December 2003...       134.98804110
January 2000......     111.56813550      January 2004....       135.53643000
February 2000.....     112.02138100      February 2004...       136.08704680
March 2000........     112.47646790      March 2004......       136.63990040
April 2000........     112.93340360      April 2004......       137.19500000
May 2000..........     113.39219550      May 2004........       137.75235470
June 2000.........     113.85285130      June 2004.......       138.31197360
July 2000.........     114.31537850      July 2004.......       138.87386600
August 2000.......     114.77978470      August 2004.....       135.69771000
September 2000....     115.24607760      September 2004..       131.60564370
October 2000......     115.71426480      October 2004....       127.56904770
November 2000.....     116.18435400      November 2004...       124.04535040
December 2000.....     116.65635290      December 2004...       120.56892260
January 2001......     117.13026940      January 2005....       117.13909210
February 2001.....     117.60611110      February 2005...       113.75519480
March 2001........     118.08388590      March 2005......       110.41657500
April 2001........     118.56360170      April 2005......       107.12258530
May 2001..........     119.04526630      May 2005........       103.87258600
June 2001.........     119.52888770      June 2005.......       100.66594580
July 2001.........     120.01447380      July 2005.......        97.50204077
August 2001.......     120.50203260      August 2005.....        94.38025509
September 2001....     120.99157210      September 2005..        91.29998041
October 2001......     121.48310040      October 2005....        88.26061600


                                  Percentage of
                                 Initial Class A
                                    Subclass
   Distribution Date            Principal Balance
- -------------------------       -----------------
November 2005.........               85.67473673
December 2005.........               83.12044739
January 2006..........               80.59727597
February 2006.........               78.10475640
March 2006............               75.64242849
April 2006............               73.20983787
May 2006..............               70.80653588
June 2006.............               68.43207954
July 2006.............               66.08603138
August 2006...........               63.76795956
September 2006........               61.47743758
October 2006..........               59.21404430
November 2006.........               57.33865970
December 2006.........               55.48061873
January 2007..........               53.63966917
February 2007.........               51.81556159
March 2007............               50.00804932
April 2007............               48.21688845
May 2007..............               46.44183778
June 2007.............               44.68265884
July 2007.............               42.93911571
August 2007...........               41.21097515
September 2007........               39.49800653
October 2007..........               37.79998168
November 2007.........               36.11667499
December 2007.........               34.44786332
January 2008..........               32.79332600
February 2008.........               31.15284478
March 2008............               29.52620379
April 2008............               27.91318949
May 2008..............               26.31359071
June 2008.............               24.72719856
July 2008.............               23.15380640
August 2008...........               21.59320988
September 2008........               20.04520679
October 2008..........               18.50959721
November 2008.........               16.98618324
December 2008.........               15.47476921
January 2009..........               13.97516147
February 2009.........               12.48716855
March 2009............               11.01060093
April 2009............                9.54527115
May 2009..............                8.09099372
June 2009.............                6.64758512
July 2009.............                5.21486379
August 2009...........                3.79265011
September 2009........                2.38076626
October 2009..........                0.97903639
November 2009.........
and thereafter........                0.00000000




<PAGE>



      (c) Notwithstanding the foregoing,  on each Distribution Date occurring on
or subsequent to the Cross-Over Date, the Class A Non-PO Principal  Distribution
Amount shall be distributed among the Subclasses of Class A Certificates  (other
than the Class A-PO  Certificates) pro rata in accordance with their outstanding
Class A Subclass  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  Subclasses  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 M  Fractional  Interest is less than
         the  Original  Class M  Fractional  Interest  and the Class M Principal
         Balance is  greater  than zero,  the Class B-1,  Class B-2,  Class B-3,
         Class B-4 and Class B-5  Certificates  shall not be eligible to receive
         distributions of principal; or

                  (B) 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 and
         Class B-5 Certificates  shall not be eligible to receive  distributions
         of principal; or

                  (C) 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 and Class B-5
         Certificates  shall  not  be  eligible  to  receive   distributions  of
         principal; or

                  (D) 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 and Class B-5  Certificates
         shall not be eligible to receive distributions of principal; or

                  (E) 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  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 Class M  Certificates  and/or  the
Subclasses  of  Class  B  Certificates  entitled  to  receive  distributions  of
principal would reduce the Class M Principal Balance and/or the Class B Subclass
Principal Balances of the Subclasses of Class B Certificates entitled to receive
distributions of principal below zero,  first the Class M Prepayment  Percentage
and/or  the Class B  Subclass  Prepayment  Percentage  of any  affected  Class B
Subclass for such  Distribution  Date beginning with the affected  Subclass with
the lowest numerical  Subclass  designation and then, if necessary,  the Class M
Percentage and/or the Class B Subclass  Percentage of such Subclass of the Class
B  Certificates  for such  Distribution  Date shall be reduced to the respective
percentages  necessary to bring the Class M Principal Balance and/or the Class B
Subclass  Principal  Balance  of such  Class B  Subclass  to zero.  The  Class B
Subclass  Prepayment  Percentages  and the Class B Subclass  Percentages  of the
remaining   Class  B  Subclasses  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
Class M Principal Balance and/or the Class B Subclass  Principal Balances of the
affected  Class B Subclasses  to zero;  provided,  however,  that if the Class B
Subclass  Principal  Balances of all the Class B Subclasses  eligible to receive
distributions of principal shall be reduced to zero on such  Distribution  Date,
the Class B Subclass  Prepayment  Percentage and the Class B Subclass Percentage
of the Class B Subclass with the lowest  numerical  Subclass  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 M
Prepayment  Percentage  and the Class B Subclass  Prepayment  Percentages of the
Class B Subclasses having lower numerical Subclass designations, if any, and the
remainder of the Subordinated  Percentage for such  Distribution  Date minus the
sum of the Class M Percentage and the Class B Subclass  Percentages of the Class
B Subclasses having lower numerical Subclass designations, if any, respectively.
Any entitlement of any Class B Subclass to principal payments solely pursuant to
this clause (ii) shall not cause such Subclass to be regarded as being  eligible
to receive principal distributions for the purpose of applying the definition of
its Class B Subclass Percentage or Class B Subclass Prepayment Percentage.

      (e) The Trustee shall  establish and maintain the  Upper-Tier  Certificate
Account,  which shall be a separate  trust account and an Eligible  Account.  On
each  Distribution  Date other than the Final  Distribution  Date (if such Final
Distribution  Date is in  connection  with a purchase of the assets of the Trust
Estate by the Seller), the Paying Agent shall, on behalf of the Master Servicer,
from  funds  available  on deposit  in the  Payment  Account,  (i)  deposit,  in
immediately available funds, by wire transfer or otherwise,  into the Upper-Tier
Certificate  Account the Lower-Tier  Distribution  Amount and (ii) distribute to
the Class  A-LR  Certificateholder  (other  than as  provided  in  Section  9.01
respecting the final distribution to Certificateholders) by check mailed to such
Holder at the address of such Holder appearing in the Certificate Register,  the
Class A Subclass  Distribution Amount with respect to the Class A-LR Certificate
and all other amounts  distributable to the Class A-LR Certificate.  The Trustee
may clear and terminate the Upper-Tier  Certificate  Account pursuant to Section
9.01.

      (f) On each Distribution  Date other than the Final  Distribution Date (if
such Final  Distribution  Date is in connection with a purchase of the assets of
the Trust Estate by the Seller), the Paying Agent shall, on behalf of the Master
Servicer,  from funds remitted to it by the Master Servicer,  distribute to each
Certificateholder of record (other than the Class A-LR Certificateholder) on the
preceding  Record Date (other than as provided in Section  9.01  respecting  the
final  distribution  to  Certificateholders  or in the  last  paragraph  of this
Section  4.01(f)  respecting the final  distribution  in respect of any Class or
Subclass) 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  11.26,  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 (based
on, with respect to each Class or  Subclass,  the  aggregate  of the  Percentage
Interests  represented by  Certificates  of the applicable  Class or Subclass of
Certificates  held by such  Holder of the Class A Subclass  Distribution  Amount
with respect to each Subclass of Class A Certificates,  the Class M Distribution
Amount  with  respect  to the  Class M  Certificates  and the  Class B  Subclass
Distribution Amount with respect to each such Subclass of Class B Certificates.

      In  the  event  that,  on  any  Distribution   Date  prior  to  the  Final
Distribution  Date,  the Class A Subclass  Principal  Balance of any Subclass of
Class A Certificates  (other than the Class A-4 Class A-8,Class A-WIO, Class A-R
or A-LR Certificates), the Class M Principal Balance of the Class M Certificates
or  the  Class  B  Subclass  Principal  Balance  of  any  Subclass  of  Class  B
Certificates  would  be  reduced  to zero or (i) in the  case of the  Class  A-8
Certificates, upon the later of (a) the Class A Subclass Principal Balance being
reduced to zero or (b) the Class A-8 IO A Component  Notional Amount,  Class A-8
IO B  Component  Notional  Amount and Class A-8 IO C Component  Notional  Amount
being reduced to zero, (ii) in the case of the Class A-4 Certificates, the Class
A-4 Notional  Amount would be reduced to zero, or (iii) in the case of the Class
A-WIO  Certificates,  the Class A-WIO Notional  Amount would be reduced to zero,
the Master Servicer shall, as soon as practicable after the  Determination  Date
relating to such  Distribution  Date, send a notice to the Trustee.  The Trustee
will then send a notice to each Certificateholder of such Class or Subclass with
a copy to the Certificate Registrar, specifying that the final distribution with
respect to such Class or Subclass  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 Trustee therein specified;  provided,  however, that
the  failure to give such notice  will not  entitle a  Certificateholder  to any
interest beyond the interest payable with respect to such  Distribution  Date in
accordance with Section 4.01(a)(i).

      (g) The Paying  Agent (or if no Paying  Agent is  appointed  by the Master
Servicer,  the Master  Servicer)  shall  withhold or cause to be  withheld  such
amounts as may be required  by the Code  (giving  full effect to any  exemptions
from  withholding  and  related  certifications  required  to  be  furnished  by
Certificateholders  and any reductions to withholding by virtue of any bilateral
tax  treaties  and any  applicable  certification  required to be  furnished  by
Certificateholders  with  respect  thereto)  from  distributions  to be  made to
persons other than U.S. Persons ("Non-U.S.  Persons"). Amounts withheld pursuant
to this  Section  4.01(g)  shall be treated as having  been  distributed  to the
related  Certificateholder for all purposes of this Agreement.  For the purposes
of this  paragraph,  a "U.S.  Person"  is a citizen  or  resident  of the United
States,  a  corporation,  partnership or other entity created or organized in or
under the laws of the United States or any  political  subdivision  thereof,  an
estate that is subject to United  States  federal  income tax  regardless of the
source  of its  income  or a trust  if (i) for  taxable  years  beginning  after
December 31, 1996 (or for taxable  years  ending  after August 20, 1996,  if the
trustee has made an  applicable  election),  a court within the United States is
able to exercise primary  supervision over the administration of such trust, and
one or more U.S. Persons have the authority to control all substantial decisions
of such  trust or (ii) for all other  taxable  years,  such  trust is subject to
United States  federal income tax regardless of the source of its income (or, to
the extent  provided  in  applicable  Treasury  regulations,  certain  trusts in
existence on August 20, 1996 which are eligible to elect to be treated as U.S.
Persons).

Section 4.02.    Allocation of Realized Losses.

      (a) With  respect  to any  Distribution  Date,  the  principal  portion of
Realized  Losses  (other than Debt Service  Reductions,  Excess  Special  Hazard
Losses,  Excess Fraud Losses and Excess Bankruptcy  Losses) will be allocated as
follows:

      first, to the Class B-5 Certificates until the Class B-5 Principal Balance
has been reduced to zero;

      second,  to the Class  B-4  Certificates  until  the  Class B-4  Principal
Balance has been reduced to zero;

      third, to the Class B-3 Certificates until the Class B-3 Principal Balance
has been reduced to zero;

      fourth,  to the Class  B-2  Certificates  until  the  Class B-2  Principal
Balance has been reduced to zero;

      fifth, to the Class B-1 Certificates until the Class B-1 Principal Balance
has been reduced to zero;

      sixth, to the Class M Certificates until the Class M 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 or Subclass'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),  Class M  Certificates  and Class B
Certificates  based on the Class A Non-PO Principal  Balance,  Class M 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  Subclasses of Class A Certificates  (other than the
Class A-8  Certificates) and the Class A-8 Scheduled Accrual Component and Class
A-8 PO Component in  accordance  with the Class A Subclass Loss  Percentage  and
Component  Loss  Percentages  as of  such  Determination  Date.  Any  such  loss
allocated  to the Class B  Certificates  shall be  allocated  pro rata among the
outstanding  Subclasses of Class B Certificates  based on their Class B Subclass
Principal Balances.

      (c) Any Realized Losses allocated to a Subclass of Class A Certificates or
Class B Certificates or to the Class M Certificates  pursuant to Section 4.02(a)
or Section 4.02(b) shall be allocated among the Certificates of such Subclass or
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 Subclasses of Class A Certificates,  the Class M Certificates or any
Subclasses of Class B Certificates,  each outstanding Class or Subclass 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),  Class M 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 or Subclass on the  Distribution  Date in the month following the month in
which  such  recovery  is  received.  When the  Principal  Balance of a Class or
Subclass of Certificates  has been reduced to zero, such Class or Subclass 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 or Subclass in accordance with the preceding provisions,  each outstanding
Class  or  Subclass  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  or  Subclass.  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 and
Subclass of Certificates  whose principal  balances were previously reduced as a
result of such Realized  Loss being less than such Class or Subclass  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  among  the Class A
Certificates,  Class M Certificates and Class B Certificates,  pro rata based on
the Class A Interest Accrual Amount, the Class M 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  Subclasses of
Class A Certificates  (other than the Class A-8  Certificates) and the Class A-8
Components  based on their Class A Subclass  Interest  Percentages and Component
Interest Percentages, as the case may be. Any such loss allocated to the Class B
Certificates  will be  allocated  among the  outstanding  Subclasses  of Class B
Certificates based on their Class B Subclass Interest Percentages.  In addition,
after the Class M Principal  Balance and the Class B Principal Balance have 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  Subclasses of Class A Certificates  (other than
the Class A-8  Certificates) and the Class A-8 Components based on their Class A
Subclass Interest  Percentages and Component Interest  Percentages,  as the case
may be.

      (f) Realized Losses allocated in accordance with this Section 4.02 will be
allocated on the  Determination  Date in the second month following the month in
which such loss was incurred with respect to the preceding Distribution Date.

      (g) With  respect  to any  Distribution  Date,  the  principal  portion of
Realized  Losses and recoveries  attributable to previously  allocated  Realized
Losses  allocated  pursuant  to this  Section  4.02  will be  allocated  to each
Uncertificated Lower-Tier Interest in an amount equal to the amount allocated to
its respective Corresponding Upper-Tier Class, Classes,  Component or Components
as provided above.

      With respect to any  Distribution  Date, the interest  portion of Realized
Losses  allocated  pursuant  to this  Section  4.02  will be  allocated  to each
Uncertificated  Lower-Tier Interest in the same relative proportions as interest
is allocated to such Uncertificated Lower-Tier Interest.

Section 4.03.   Paying Agent.

      (a) The Master  Servicer  hereby  appoints  the Trustee 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 Trustee
to execute and deliver to the Trustee an  instrument  in which such Paying Agent
agrees with the Trustee 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 Trustee  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 Trustee,  forthwith pay to the Trustee
         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 Trustee,  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 Trustee and the Seller.

      Concurrently  with each  distribution  pursuant  to Section  4.01(f),  the
Master  Servicer,  or the Paying Agent  appointed by the Master  Servicer  (upon
receipt of such statement from the Master  Servicer),  shall forward or cause to
be forwarded by mail to each Holder of a Certificate  and the Seller a statement
setting forth:

                   (i) the amount of such  distribution to Holders of each Class
         A Subclass 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
         Subclass of Class A Certificates  allocable to interest, (b) the amount
         of the Current Class A Interest  Distribution  Amount allocated to each
         Class A Subclass,  (c) any Class A Subclass Interest  Shortfall Amounts
         arising with respect to such  Distribution Date and any remaining Class
         A Subclass  Unpaid  Interest  Shortfall  with respect to each  Subclass
         after  giving  effect  to  such  distribution,  (d) the  amount  of any
         Non-Supported Interest Shortfall allocated to each Class A Subclass for
         such  Distribution  Date and (e) the interest portion of Excess Special
         Hazard  Losses,  Excess  Fraud  Losses  and  Excess  Bankruptcy  Losses
         allocated to each Subclass for such Distribution Date;

                 (iii) the amount of such distribution to Holders of the Class M
         Certificates  allocable to principal,  identifying the aggregate amount
         of any Unscheduled Principal Receipts included therein;

                  (iv) (a) the  amount of such  distribution  to  Holders of the
         Class M  Certificates  allocable  to  interest,  (b) the  amount of the
         Current Class M Interest  Distribution Amount, (c) any Class M Interest
         Shortfall Amount arising with respect to such Distribution Date and any
         remaining Class M Unpaid Interest Shortfall after giving effect to such
         distribution,  (d) the amount of any Non-Supported  Interest  Shortfall
         allocated to the Class M Certificates  for such  Distribution  Date and
         (e) the interest portion of Excess Special Hazard Losses,  Excess Fraud
         Losses  and  Excess   Bankruptcy   Losses  allocated  to  the  Class  M
         Certificates for such Distribution Date;

                   (v) the amount of such  distribution to Holders of each Class
         B Subclass allocable to principal, separately identifying the aggregate
         amount of any Unscheduled Principal Receipts included therein;

                  (vi) (a) the  amount of such  distribution  to Holders of each
         Class B Subclass  allocable to interest,  (b) the amount of the Current
         Class B Interest Distribution Amount allocated to each Class B Subclass
         and the Pass-Through Rate applicable to such Distribution Date, (c) any
         Class B Subclass  Interest  Shortfall  Amounts  arising with respect to
         such  Distribution  Date  and any  remaining  Class B  Subclass  Unpaid
         Interest  Shortfall  with respect to each Class B Subclass after giving
         effect  to such  distribution,  (d)  the  amount  of any  Non-Supported
         Interest  Shortfall  allocated  to  each  Class  B  Subclass  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 B Subclass for such Distribution Date;

                 (vii)  the amount of any Periodic  Advance by any Servicer, the
         Master Servicer or the Trustee pursuant  to the Servicing Agreements or
         this Agreement;

                (viii)  the  number  of  Mortgage  Loans  outstanding  as of the
         preceding Determination Date;

                  (ix) the  Class A  Principal  Balance,  the  Class A  Subclass
         Principal  Balance  of  each  Subclass  of  Class A  Certificates,  the
         Component  Principal  Balance of each Component,  the Class M Principal
         Balance,  the  Class  B  Principal  Balance  and the  Class B  Subclass
         Principal  Balance of each Subclass 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;

                   (x)  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;

                  (xi)  the  aggregate   Scheduled  Principal  Balances  of  the
         Mortgage Loans serviced by Norwest Mortgage and,  collectively,  by the
         Other Servicers as of such Distribution Date;

                 (xii) 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);

                (xiii)  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);

                 (xiv) the Class M  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);

                  (xv)  the  Class M  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);

                 (xvi) the Class B-1,  Class B-2, Class B-3, Class B-4 and Class
         B-5  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);

                (xvii) the Class B-1,  Class B-2, Class B-3, Class B-4 and Class
         B-5 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);

               (xviii) the number and aggregate principal balances  of  Mortgage
         Loans delinquent (a) one month, (b) two months  and (c) three months or
         more;

                 (xix) the number  and  aggregate   principal   balances  of the
         Mortgage Loans in foreclosure as of the preceding Determination Date;

                  (xx) the  book  value  of  any  real estate  acquired  through
         foreclosure  or grant of a deed in lieu of foreclosure;

                 (xxi) 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;

                (xxii) 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;

               (xxiii) the aggregate  amount of Bankruptcy  Losses  allocated to
         each Subclass of Class B  Certificates  or,  following the reduction of
         the  Class  B  Principal  Balance  to  zero,  solely  to  the  Class  M
         Certificates  in  accordance  with Section  4.02(a)  since the Relevant
         Anniversary;

                (xxiv)  the  amount  by which  the  Class B  Subclass  Principal
         Balance  of each  Subclass  of  Class B  Certificates  and the  Class M
         Principal  Balance  has been  reduced  as a result of  Realized  Losses
         allocated as of such Distribution Date;

                 (xxv) 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;

                (xxvi) 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;

              (xxviii) in the case of the Class A-8 Certificates,  the Class A-8
         IO A  Component  Notional  Amount,  Class A-8 IO B  Component  Notional
         Amount and Class A-8 IO C Component Notional Amount;

                (xxix) in  the case of the Class A-4 Certificates, the Class A-4
          Notional Amount;

                 (xxx) in  the case  of  the  Class A-WIO Certificate, the Class
          A-WIO Notional Amount;

                (xxxi) the Class A-PO Deferred Amount, if any; and

               (xxxii) 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  Trustee,  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 Subclass of Class A
Certificates  pursuant  to  clauses  (i)  and  (ii)  above,  with  the  Class  M
Certificates  pursuant  to clauses  (iii) and (iv)  above and with  respect to a
Class B Subclass  pursuant to clauses (v) and (vi) above,  the amounts  shall be
expressed as a dollar amount per Class A, Class M or Class B Certificate  (other
than the Class  A-R,  Class  A-LR and Class  A-WIO  Certificates)  with a $1,000
Denomination, as a dollar amount per Class A-R and Class A-LR Certificate with a
$100  Denomination and as a dollar amount per Class A-WIO  Certificate with a 1%
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,  the information set forth in clauses (iii)
and (iv)(a) above in the case of a Class M Certificateholder and the information
contained  in  clauses  (v)  and  (vi)(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 Trustee,
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 Subclass  Distribution  Amount  with  respect to each
Class A  Subclass,  the Class M  Distribution  Amount  and the Class B  Subclass
Distribution Amount with respect to each Class B Subclass.  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 Trustee
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-7,  Class  B-3,  Class  B-4  or  Class  B-5
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)  Except as set forth in the next  sentence,  the Class A,  Class M and
Class B Certificates  shall be issued only in minimum  Denominations of a Single
Certificate and, except for the Class A-R and Class A-LR Certificates, integral
multiples  of  $1,000  in excess  thereof  or,  in the case of the  Class  A-WIO
Certificates,  1% Percentage  Interest in excess thereof (except,  if necessary,
for one Certificate of each Class or Subclass (other than the Class A-WIO, Class
A-R or Class A-LR Certificate)  that evidences one Single  Certificate plus such
additional  principal portion or notional amount as is required in order for all
Certificates  of such Class or Subclass to equal the aggregate  Original Class A
Subclass Principal Balance (or Original Class A-4 Notional Amount in the case of
the Class A-4 Certificates), Original Class M Principal Balance or the aggregate
Original Class B Subclass  Principal  Balance of such Class or Subclass,  as the
case may be), and shall be  substantially  in the respective  forms set forth as
Exhibits A-1, A-2, A-3, A-4, A-5, A-6, A-7, A-8, A-9, A-10,  A-11,  A-12,  A-PO,
A-WIO,  A-R,  A-LR,  B-1,  B-2,  B-3,  B-4,  B-5,  C,  and D  (reverse  side  of
Certificates)  hereto. On original issue the Certificates  shall be executed and
delivered  by the Trustee to or upon the order of the Seller upon receipt by the
Trustee  or the  Custodian  of the  documents  specified  in Section  2.01.  The
aggregate principal portion (or notional amount) evidenced by the Class A, Class
M 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  Trustee  by any  Responsible
Officer  thereof.  Certificates  bearing the manual or facsimile  signatures  of
individuals  who were at any time the proper  officers of the Trustee shall bind
the Trustee  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 Trustee,
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 Trustee 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  Trustee 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 Trustee at the Corporate Trust Office.

Section 5.02.     Registration of Transfer and Exchange of Certificates.

      (a) The  Trustee  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 Trustee shall provide for the  registration of Certificates and of transfers
and exchanges of Certificates as herein  provided.  The Trustee 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 Trustee 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 or Subclass.

      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 or Subclass upon surrender
of the  Certificates to be exchanged at any such office or agency.  Whenever any
Certificates  are so surrendered  for exchange,  the Trustee 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 Trustee) 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 Trustee 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  Trustee  or the  Authenticating  Agent  in
accordance with their standard procedures.

      (b) No transfer of a Class A-8, Class A-PO, Class A-WIO,  Class B-3, Class
B-4 or Class B-5 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 Trustee or the Seller may, if such  transfer
is to be made within  three years after the later of (i) the date of the initial
sale of  Certificates or (ii) the last date on which the Seller or any affiliate
thereof was a Holder of the Certificates  proposed to be transferred,  require a
Class  A-8,  Class  A-PO,  Class  A-WIO,  Class  B-3,  Class  B-4 or  Class  B-5
Certificateholder  to deliver a written Opinion of Counsel  acceptable to and in
form and  substance  satisfactory  to the Trustee 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 Trustee, the Seller or the Master Servicer,  and (ii) the Trustee
shall  require  the  transferee  (other than an  affiliate  of the Seller on the
Closing  Date) to execute an  investment  letter in the form of Exhibit J hereto
certifying to the Seller and the Trustee the facts  surrounding  such  transfer,
which  investment  letter shall not be an expense of the Trustee,  the Seller or
the Master Servicer.  The Holder of a Class A-8, Class A-PO, Class A-WIO,  Class
B-3, Class B-4 or Class B-5 Certificate  desiring to effect such transfer shall,
and does hereby agree to, indemnify 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 Trustee is under an
obligation to register the Class A-8, Class A-PO, Class A-WIO,  Class B-3, Class
B-4 or Class B-5 Certificates under said Act or any other securities law.

      (c) No transfer of a Class A-PO,  Class A-WIO  (other than to an affiliate
of the Seller on the Closing Date), Class M or Class B Certificate shall be made
unless the  Trustee  and the Seller  shall have  received  (i) a  representation
letter  from the  transferee  in the form of Exhibit J hereto,  in the case of a
Class A-PO, Class A-WIO,  Class B-3, Class B-4 or Class B-5  Certificate,  or in
the form of  Exhibit K hereto,  in the case of a Class M, Class B-1 or Class B-2
Certificate,  to the effect that either (a) such  transferee  is not an employee
benefit plan or other retirement arrangement subject to Title I of ERISA or Code
Section 4975, or a governmental  plan, as defined in Section 3(32) of ERISA,  or
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 Trustee,  the Seller or the Master Servicer or (b) with respect to the Class
M, Class B-1 and Class B-2 Certificates only, if such transferee is an insurance
company, the source of funds used to purchase the Class M or Class B Certificate
is an "insurance  company  general  account" (as such term is defined in Section
V(e) of Prohibited Transaction Class Exemption 95-60 ("PTE 95-60"), 60 Fed. Reg.
35925 (July 12,  1995)) and there is no Plan with respect to which the amount of
such general  account's  reserves and liabilities for the contract(s) held by or
on behalf of such Plan and all other Plans  maintained  by the same employer (or
affiliate  thereof as  defined  in Section  V(a)(1) of PTE 95-60) or by the same
employee  organization  exceeds 10% of the total of all reserves and liabilities
of such general  account (as such amounts are  determined  under Section I(a) of
PTE  95-60)  at the date of  acquisition  or (ii) in the case of any such  Class
A-PO, Class A-WIO, Class M 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 Trustee  and the Seller to the effect that the  purchase or
holding of such Class A-PO, Class A-WIO, Class M 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 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  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 Trustee,  the Seller or the Master Servicer.  The
Class A-PO,  Class A-WIO,  Class M and Class B Certificates  shall bear a legend
referring to the foregoing restrictions contained in this paragraph.

      (d) No legal or beneficial interest in all or any portion of the Class A-R
or Class  A-LR  Certificate  may be  transferred  directly  or  indirectly  to a
"disqualified  organization" within the meaning of Code Section 860E(e)(5) or an
agent  of  a  disqualified   organization   (including  a  broker,  nominee,  or
middleman),  to a Plan or a Person  investing the assets of a Plan (such plan or
Person,  an  "ERISA  Prohibited  Holder")  or  to  an  individual,  corporation,
partnership or other person unless such transferee (i) is not a Non-U.S.  Person
or (ii) is a Non-U.S.  Person that holds the Class A-R or Class A-LR Certificate
in connection  with the conduct of a trade or business  within the United States
and has  furnished  the  transferor  and the Trustee 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 Trustee an opinion of a nationally  recognized tax
counsel  to the  effect  that  the  transfer  of the  Class  A-R or  Class  A-LR
Certificate  to it is in accordance  with the  requirements  of the Code and the
regulations  promulgated  thereunder  and that such transfer of the Class A-R or
Class A-LR  Certificate  will not be disregarded for federal income tax purposes
(any such  person who is not covered by clauses  (i),  (ii) or (iii) above being
referred to herein as a "Non-permitted  Foreign Holder"), and any such purported
transfer  shall be void and have no effect.  The Trustee shall not execute,  and
shall not authenticate (or cause the  Authenticating  Agent to authenticate) and
deliver,  a new Class A-R or Class A-LR  Certificate in connection with any such
transfer to a disqualified  organization  or agent thereof  (including a broker,
nominee or middleman),  an ERISA  Prohibited  Holder or a Non-permitted  Foreign
Holder,  and neither the  Certificate  Registrar  nor the Trustee shall accept a
surrender for transfer or registration of transfer, or register the transfer of,
the Class A-R or Class  A-LR  Certificate,  unless  the  transferor  shall  have
provided  to the Trustee an  affidavit,  substantially  in the form  attached as
Exhibit H hereto, signed by the transferee, to the effect that the transferee is
not such a disqualified organization,  an agent (including a broker, nominee, or
middleman)  for any  entity  as to  which  the  transferee  has not  received  a
substantially  similar affidavit,  an ERISA Prohibited Holder or a Non-permitted
Foreign  Holder,  which affidavit shall contain the consent of the transferee to
any such  amendments of this Agreement as may be required to further  effectuate
the  foregoing  restrictions  on  transfer  of  the  Class  A-R  or  Class  A-LR
Certificate  to  disqualified   organizations,   ERISA  Prohibited   Holders  or
Non-permitted  Foreign Holders.  Such affidavit shall also contain the statement
of the transferee  that (i) the transferee  has  historically  paid its debts as
they have  come due and  intends  to do so in the  future,  (ii) the  transferee
understands  that it may incur  liabilities in excess of cash flows generated by
the residual interest, (iii) the transferee intends to pay taxes associated with
holding the residual  interest as they become due and (iv) the  transferee  will
not transfer the Class A-R or Class A-LR  Certificate to any Person who does not
provide an affidavit substantially in the form attached as Exhibit H hereto.

      The  affidavit  described in the preceding  paragraph,  if not executed in
connection with the initial issuance of the Class A-R or Class A-LR Certificate,
shall be  accompanied  by a written  statement in the form attached as Exhibit I
hereto,  signed  by the  transferor,  to the  effect  that as of the time of the
transfer,  the  transferor  has no actual  knowledge  that the  transferee  is a
disqualified  organization,  ERISA Prohibited  Holder or  Non-permitted  Foreign
Holder,  and has no knowledge or reason to know that the statements  made by the
transferee  with  respect to clauses  (i) and (iii) of the last  sentence of the
preceding  paragraph  are not true.  The Class A-R and Class  A-LR  Certificates
shall bear a legend  referring to the foregoing  restrictions  contained in this
paragraph and the preceding paragraph.

      Upon notice to the Master  Servicer that any legal or beneficial  interest
in any portion of the Class A-R or Class A-LR Certificate has been  transferred,
directly  or  indirectly,  to  a  disqualified  organization  or  agent  thereof
(including a broker,  nominee,  or middleman) in  contravention of the foregoing
restrictions, (i) such transferee shall be deemed to hold the Class A-R or Class
A-LR  Certificate in  constructive  trust for the last  transferor who was not a
disqualified  organization  or  agent  thereof,  and  such  transferor  shall be
restored as the owner of such Class A-R or Class A-LR  Certificate as completely
as if such transfer had never  occurred,  provided that the Master Servicer may,
but is not required to, recover any  distributions  made to such transferee with
respect to Class A-R or Class  A-LR  Certificate,  and (ii) the Master  Servicer
agrees to furnish to the Internal  Revenue  Service and to any transferor of the
Class A-R or Class A-LR Certificate or such agent (within 60 days of the request
therefor  by  the  transferor  or  agent)  such  information  necessary  to  the
application  of Code Section  860E(e) as may be required by the Code,  including
but not limited to the present value of the total anticipated  excess inclusions
with respect to the Class A-R or Class A-LR Certificate (or portion thereof) for
periods after such transfer. At the election of the Master Servicer, the cost to
the Master Servicer of computing and furnishing such  information may be charged
to the transferor or such agent referred to above;  however, the Master Servicer
shall in no event be excused from furnishing such information.

      (e) No  transfer  of a Class  A-8  Certificate  shall be made  unless  the
Trustee  shall have  received a  representation  letter in the form of Exhibit J
hereto to the  effect  that if the  transferee  is a Plan or a person  acting on
behalf  of or using  the  assets of a Plan  such  transferee  is an  "accredited
investor" as defined in Rule  501(a)(1) of Regulation D of the Securities Act of
1933,  as amended,  which  representation  letter shall not be an expense of the
Trustee, the Seller or the Master Servicer.

Section 5.03.     Mutilated, Destroyed, Lost or Stolen Certificates.

      If (i) any  mutilated  Certificate  is  surrendered  to the Trustee or the
Authenticating  Agent,  or the  Trustee  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 Trustee 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 Trustee or the  Authenticating
Agent that such  Certificate  has been  acquired by a bona fide  purchaser,  the
Trustee 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 or Subclass. Upon
the  issuance  of any new  Certificate  under this  Section,  the Trustee 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  Trustee  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  Certificate
Registrar and any agent of the Seller,  the Master Servicer,  the Trustee 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  Certificate
Registrar nor any agent of the Seller,  the Master Servicer,  the Trustee 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 Trustee is not acting as Certificate Registrar, the Certificate
Registrar shall furnish or cause to be furnished to the Trustee,  within 15 days
after  receipt  by the  Certificate  Registrar  of a request  by the  Trustee in
writing,  a list,  in such form as the Trustee may  reasonably  require,  of the
names and  addresses of the  Certificateholders  of each Class or Subclass as of
the most recent Record Date.

      (b)  If  five  or  more  Certificateholders  (hereinafter  referred  to as
"applicants") apply in writing to the Trustee,  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 Trustee  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
Trustee. 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  Trustee  is not the  Certificate
Registrar,  the Trustee 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 and the
Trustee that neither the Seller, the Master Servicer,  the Certificate Registrar
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 Trustee  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 Trustee 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  Trustee 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 Trustee 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 Subclass of Book-Entry  Certificates advise
the Trustee  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 Trustee 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 Trustee 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 Trustee  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 nor the Trustee
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  Trustee  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, Class M 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.  No
such  resignation  shall  become  effective  until the  Trustee  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 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 (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,  in the exercise of its reasonable  judgment,  and
executes  and  delivers  to the  Trustee  an  agreement,  in form and  substance
reasonably  satisfactory  to the Trustee,  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 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 and Seller by Master Servicer.

      The Master  Servicer shall indemnify and hold harmless the Trustee 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
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.


<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  FHMLC,   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 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 Trustee pursuant
to and under this  Section,  subject to the  provisions  of Section  7.05;  and,
without  limitation,  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 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  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  trusts  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  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   may,   but  need  not  if  the  Trustee   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  Trustee  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.     Trustee to Act; Appointment of Successor.

      When the  Master  Servicer  receives  notice of  termination  pursuant  to
Section 7.01 or the Trustee  receives  the  resignation  of the Master  Servicer
evidenced by an Opinion of Counsel  pursuant to Section 6.04,  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  Trustee is  succeeding  to the Master
Servicer as the Master Servicer, as compensation  therefor, the Trustee 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
Trustee 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 Trustee 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
Trustee  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
Trustee is  required  to solicit  bids as  provided  above,  the  Trustee  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 Trustee  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 Trustee  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 Trustee 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  Trustee  to the Master  Servicer  at the time of such  sale,  transfer  and
assignment to the Master  Servicer's  successor.  The Trustee 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
Trustee and any successor  servicer in effecting the  termination  of the Master
Servicer's  servicing  responsibilities  and rights hereunder and shall promptly
provide  the Trustee 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
Trustee 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 Trustee 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 Trustee)  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 Trustee shall give prompt
written  notice  thereof to  Certificateholders  at their  respective  addresses
appearing in the Certificate  Register.  The Trustee shall also,  within 45 days
after the occurrence of any Event of Default known to the Trustee,  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

Section 8.01.     Duties of Trustee.

      The Trustee,  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,  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,  upon receipt of all resolutions,  certificates,  statements,
opinions,  reports,  documents,  orders or other  instruments  furnished  to the
Trustee,  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 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
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 shall be determined solely by the
         express  provisions of this Agreement,  the Trustee 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,
         in the absence of bad faith on the part of the Trustee, the Trustee 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 conforming to the requirements
         of this Agreement;

                  (ii) The Trustee 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,
         or exercising any trust or power  conferred upon the Trustee under this
         Agreement; and

                 (iii) The Trustee 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 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 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.

      Except as otherwise provided in Section 8.01:

                   (i) The Trustee may 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;

                  (ii) The Trustee may consult with counsel,  and 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) The Trustee shall not 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; and

                  (iv) The  Trustee  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.     Trustee not 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,  the Trustee shall not
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 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,  not reasonably  assured to the
Trustee  by the  security  afforded  to it by the terms of this  Agreement,  the
Trustee 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, shall be repaid
by the Master Servicer upon demand.

Section 8.04.     Trustee not 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 the Trustee assumes no  responsibility  as to the
correctness of the same. The Trustee makes no representation for the correctness
of  the  same.  The  Trustee  makes  no  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, the Trustee shall not 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 May Own Certificates.

      The  Trustee  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 or such agent.

Section 8.06.     The Master Servicer to Pay Fees and Expenses.

      The Master  Servicer  covenants and agrees to pay to the Trustee from time
to time, and the Trustee 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,  and the
Master  Servicer  will pay or  reimburse  the  Trustee  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.

      The  Trustee  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 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.

      The Trustee 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.  Upon
receiving such notice of resignation, the Master Servicer shall promptly appoint
a  successor  trustee 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 shall have been appointed and have accepted
appointment  within 30 days after the giving of such notice of resignation,  the
resigning  Trustee may  petition  any court of  competent  jurisdiction  for the
appointment of a successor trustee.

      If at any time the Trustee 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 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 of the  property  or
affairs  of the  Trustee  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 appoint a successor trustee by written  instrument,
in duplicate,  one copy of which instrument shall be delivered to the Trustee so
removed and one copy to the successor trustee.

      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 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 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 appointed as provided in Section 8.08 shall execute,
acknowledge and deliver to the Master Servicer and to its predecessor trustee an
instrument accepting such appointment  hereunder,  and thereupon the resignation
or  removal  of  the  predecessor  trustee  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  herein.  The
predecessor trustee 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 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
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,  the successor trustee shall
cause such notice to be mailed at the expense of the Master Servicer.

Section 8.10.     Merger or Consolidation.

      Any Person into which the Trustee 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 shall be a party,  or any Person  succeeding to the business of such
entity, shall be the successor of the Trustee 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  shall  deliver  an Opinion of Counsel to the Seller and the Master
Servicer to the effect that such merger,  consolidation,  sale or transfer  will
not subject  either the  Upper-Tier  REMIC or the  Lower-Tier  REMIC to federal,
state or local tax or cause either the Upper-Tier  REMIC or the Lower-Tier REMIC
to fail to qualify  as a REMIC,  which  Opinion of Counsel  shall be at the sole
expense of the Trustee.

Section 8.11.     Authenticating Agent.

      The Trustee may appoint an Authenticating Agent, which shall be authorized
to act on  behalf  of  the  Trustee  in  authenticating  Certificates.  Wherever
reference is made in this Agreement to the authentication of Certificates by the
Trustee or the Trustee's  countersignature,  such  reference  shall be deemed to
include  authentication on behalf of the Trustee by the Authenticating Agent and
a  certificate  of  authentication  executed  on  behalf of the  Trustee  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 Trustee
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 Seller and the
Master  Servicer.  The  Trustee  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 Trustee  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  Trustee.  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 Trustee 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 Trustee,  by
entering into a Custodial  Agreement.  Subject to this Article VIII, the Trustee
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 and the Master Servicer  covenants and
agrees that it shall perform its duties  hereunder in a manner  consistent  with
the REMIC Provisions and shall not knowingly take any action or fail to take any
action that would (i) affect the  determination  of the Trust Estate's status as
two separate REMICs; or (ii) cause the imposition of any federal, state or local
income,  prohibited  transaction,  contribution  or  other  tax  on  either  the
Upper-Tier REMIC, the Lower-Tier REMIC or the Trust Estate. The Master Servicer,
or,  in the  case  of any tax  return  or  other  action  required  by law to be
performed directly by the Trustee, the Trustee, shall (i) prepare or cause to be
prepared, timely cause to be signed by the Trustee and file or cause to be filed
annual federal and applicable state and local income tax returns for each of the
Upper-Tier  REMIC and the Lower-Tier  REMIC using a calendar year as the taxable
year and the accrual  method of  accounting;  (ii) in the first such federal tax
returns, make, or cause to be made, elections satisfying the requirements of the
REMIC Provisions, on behalf of the Trust Estate, to treat each of the Upper-Tier
REMIC and the Lower-Tier REMIC as a REMIC;  (iii) prepare,  execute and forward,
or cause to be prepared,  executed and forwarded,  to the Certificateholders all
information reports or tax returns required with respect to the Trust Estate, as
and when required to be provided to the Certificateholders,  and to the Internal
Revenue  Service  and  any  other  relevant  governmental  taxing  authority  in
accordance with the REMIC Provisions and any other applicable federal,  state or
local  laws,  including  without  limitation  information  reports  relating  to
"original  issue  discount"  and "market  discount" as defined in the Code based
upon the issue  prices,  prepayment  assumption  and cash flows  provided by the
Seller to the  Trustee  and  calculated  on a  monthly  basis by using the issue
prices of the Certificates;  (iv) make available  information  necessary for the
application  of  any  tax  imposed  on  transferors  of  residual  interests  to
"disqualified  organizations"  (as  defined in the REMIC  Provisions);  (v) file
Forms SS-4 and 8811 and  respond to  inquiries  by  Certificateholders  or their
nominees concerning  information returns,  reports or tax returns; (vi) maintain
(or cause to be  maintained  by the  Servicers)  such  records  relating  to the
Upper-Tier  REMIC and the  Lower-Tier  REMIC,  including  but not limited to the
income, expenses, individual Mortgage Loans (including REO Mortgage Loans, other
assets and  liabilities  of each REMIC,  and the fair market  value and adjusted
basis of the  property  of each REMIC  determined  at such  intervals  as may be
required by the Code,  as may be necessary to prepare the  foregoing  returns or
information reports; (vii) exercise reasonable care not to allow the creation of
any  "interests" in either the Upper-Tier  REMIC or the Lower-Tier  REMIC within
the  meaning  of  Code  Section  860D(a)(2)  other  than  the  interests  in the
Upper-Tier REMIC represented by the Class A-8 Scheduled Accrual Component, Class
A-8 PO Component,  Class A-8 IO A Component,  Class A-8 IO B Component and Class
A-8 IO C Component,  the Class A-1,  Class A-2, Class A-3, Class A-4, Class A-5,
Class A-6, Class A-7, Class A-9, Class A-10, Class A-11, Class A-12, Class A-PO,
Class A-WIO and Class A-R  Certificates,  the Class M Certificates and the Class
B-l,  Class  B-2,  Class  B-3,  Class  B-4 and Class  B-5  Certificates  and the
interests in the Lower-Tier  REMIC  represented  by the Class A-L1,  Class A-L5,
Class A-L8PO,  Class A-L8, Class A-L9, Clas A-L10,  Class A-LPO,  A-LWIO,  Class
A-LUR,  Class B-L1, Class B-L2, Class B-L3, Class B-L4, Class B-L5 and Class M-L
Interests and the Class A-LR Certificate; (viii) exercise reasonable care not to
allow the occurrence of any "prohibited transactions" within the meaning of Code
Section  860F(a),  unless the Master  Servicer shall have provided an Opinion of
Counsel to the Trustee  that such  occurrence  would not (a) result in a taxable
gain, (b) otherwise  subject either the Upper-Tier  REMIC or Lower-Tier REMIC or
the Trust  Estate to tax or (c) cause the Trust Estate to fail to qualify as two
separate  REMICs;  (ix)  exercise  reasonable  care  not  to  allow  either  the
Upper-Tier  REMIC or the Lower-Tier REMIC to receive income from the performance
of services or from assets not permitted  under the REMIC  Provisions to be held
by a REMIC; (x) pay (on behalf of the Upper-Tier REMIC or the Lower-Tier  REMIC)
the amount of any federal income tax, including, without limitation,  prohibited
transaction taxes, taxes on net income from foreclosure  property,  and taxes on
certain  contributions  to a  REMIC  after  the  Startup  Day,  imposed  on  the
Upper-Tier  REMIC or Lower-Tier  REMIC, as the case may be, when and as the same
shall be due and  payable  (but such  obligation  shall not  prevent  the Master
Servicer  or any  other  appropriate  Person  from  contesting  any  such tax in
appropriate   proceedings  and  shall  not  prevent  the  Master  Servicer  from
withholding or depositing  payment of such tax, if permitted by law, pending the
outcome of such proceedings);  and (xi) if required or permitted by the Code and
applicable  law, act as "tax  matters  person" for the  Upper-Tier  REMIC or the
Lower-Tier REMIC within the meaning of Treasury Regulations Section 1.860F-4(d),
and the Master Servicer is hereby designated as agent of the Class A-R and Class
A-LR  Certificateholders  for such purpose (or if the Master  Servicer is not so
permitted, the Holders of the Class A-R and Class A-LR Certificates shall be tax
matters  persons in accordance with the REMIC  Provisions).  The Master Servicer
shall be entitled to be  reimbursed  pursuant to Section 3.02 for any taxes paid
by it pursuant  to clause (x) of the  preceding  sentence,  except to the extent
that such taxes are imposed as a result of the bad faith, willful misfeasance or
gross  negligence of the Master  Servicer in the  performance of its obligations
hereunder.  The Trustee shall sign the tax returns  referred to in clause (i) of
the second  preceding  sentence.  In order to enable the Master  Servicer 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 and Subclass of  Certificates
and the Mortgage Loans in the aggregate. Thereafter, the Seller shall provide to
the Master  Servicer or the Trustee,  as the case may be,  promptly upon request
therefor,  any such  additional  information or data that the Master Servicer 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 or the Trustee,  as the case may be, for
any losses,  liabilities,  damages, claims or expenses of the Master Servicer or
the Trustee arising from any errors or miscalculations by the Master Servicer 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  or the  Trustee,  as the case may be, on a timely  basis.  The
Master  Servicer  hereby  indemnifies the Seller and the Trustee for any losses,
liabilities,  damages,  claims or expenses of the Seller 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 Trustee  prepares  any of the  federal,
state and local tax returns of the REMIC as described  above, the Trustee hereby
indemnifies  the Seller and the Master  Servicer  for any  losses,  liabilities,
damages,  claims or expenses of the Seller and the Master Servicer  arising from
the Trustee'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 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 or the Trustee to 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  Trustee  shall make a Periodic  Advance as required by
Section 3.03 hereof;  provided,  however,  the Trustee  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 Trustee
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.


<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 and the Trustee  created hereby (other than
the  obligation  of the  Trustee  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  Trustee  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 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 11.25. In the case of any purchase by the Seller pursuant to said clause
(i),  the Seller  shall  provide to the  Trustee the  certification  required by
Section 3.04 and the Trustee 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 Trustee 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   Trustee   (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  Trustee  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 Trustee therein specified. If
the  Master  Servicer  is  obligated  to give  notice to  Certificateholders  as
aforesaid,  it  shall  give  such  notice  to the  Trustee  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 Trustee 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  Subclasses  of  Class A  Certificates,  the  respective  Class  A  Subclass
Principal  Balance  together with any related Class A Subclass  Unpaid  Interest
Shortfall and one month's  interest in an amount equal to the respective Class A
Subclass Interest Accrual Amount, (ii) as to the Class M Certificates, the Class
M Principal Balance together with any related Class M Unpaid Interest  Shortfall
and one  month's  interest  at the  Class  M  Pass-Through  Rate on the  Class M
Principal  Balance,  (iii) as to the  Subclasses  of Class B  Certificates,  the
respective Class B Subclass  Principal Balance together with any related Class B
Subclass Unpaid Interest  Shortfall and one month's  interest in an amount equal
to the respective  Class B Subclass  Interest  Accrual Amount and (iv) as to the
Class A-R and Class A-LR  Certificates,  the  amounts,  if any,  which remain on
deposit in the  Upper-Tier  Certificate  Account  and the  Certificate  Account,
respectively  (other than  amounts  retained to meet claims)  after  application
pursuant to clauses (i), (ii) and (iii) above and payment to the Master Servicer
of any amounts it is entitled as  reimbursement  or  otherwise  hereunder.  Such
amount shall be  distributed  in respect of interest and principal in respect of
the  Uncertificated  Lower-Tier  Interests in the same amounts as distributed to
their Corresponding  Upper-Tier Class,  Classes,  Component or Components in the
manner specified in Section 4.01(a)(ii).  Notwithstanding the foregoing,  if the
price paid  pursuant to clause (i) of the first  paragraph of this Section 9.01,
after reimbursement to the Servicers, the Master Servicer and the Trustee 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 Trustee 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 Trustee (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 Trustee 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  Trustee  has  received  an Opinion of Counsel to the effect that any
other manner of termination (i) will constitute a "qualified liquidation" of the
Trust Estate within the meaning of Code Section  860F(a)(4)(A) and (ii) will not
subject  either the Upper-Tier  REMIC or the Lower-Tier  REMIC to federal tax or
cause the Trust  Estate to fail to  qualify as two  separate  REMICs at any time
that any Certificates are outstanding:

                   (i) The notice  given by the Master  Servicer  under  Section
         9.01 shall provide that such notice  constitutes the adoption of a plan
         of complete liquidation of the Upper-Tier REMIC and Lower-Tier REMIC as
         of the date of such notice (or, if earlier, the date on which the first
         such notice is mailed to Certificateholders). The Master Servicer shall
         also specify such date in a statement attached to the final tax returns
         of the Upper-Tier REMIC and Lower-Tier REMIC; and

                  (ii)  At or  after  the  time  of  adoption  of such a plan of
         complete  liquidation and at or prior to the Final  Distribution  Date,
         the  Trustee  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 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 two separate  REMICs at all times that any
Certificates  are outstanding or to avoid or minimize the risk of the imposition
of any federal tax on the Trust Estate,  the Upper-Tier  REMIC or the Lower-Tier
REMIC  pursuant  to the Code that  would be a claim  against  the Trust  Estate,
provided  that (a) the Trustee has  received an Opinion of Counsel to the effect
that such action is necessary or desirable to maintain such  qualification or to
avoid or minimize the risk of the imposition of any such tax and (b) such action
shall not, as  evidenced  by such  Opinion of Counsel,  adversely  affect in any
material  respect the  interests  of any  Certificateholder,  (iv) to change the
timing  and/or nature of deposits into the  Upper-Tier  Certificate  Account and
Certificate  Account provided that (a) such change shall not, as evidenced by an
Opinion of Counsel,  adversely  affect in any material  respect the interests of
any  Certificateholder  and (b) such  change  shall  not  adversely  affect  the
then-current  rating of the  Certificates  as  evidenced  by a letter  from each
Rating Agency to such effect, (v) to modify,  eliminate or add to the provisions
of Section  5.02 or any other  provisions  hereof  restricting  transfer  of the
Certificates, provided that the Master Servicer for purposes of Section 5.02 has
determined in its sole discretion that any such  modifications to this Agreement
will neither  adversely affect the rating on the Certificates nor give rise to a
risk that  either the  Upper-Tier  REMIC or the  Lower-Tier  REMIC or any of the
Certificateholders  will  be  subject  to  a  tax  caused  by  a  transfer  to a
non-permitted  transferee and (vi) to make any other  provisions with respect to
matters or questions  arising under this Agreement or such  Custodial  Agreement
which  shall  not  be  materially  inconsistent  with  the  provisions  of  this
Agreement,  provided  that such action  shall not, as evidenced by an Opinion of
Counsel,  adversely  affect  in  any  material  respect  the  interests  of  any
Certificateholder.

      This Agreement or any Custodial Agreement may also be amended from time to
time by the Seller,  the Master Servicer 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 or Subclass 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 or Subclass; 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 or Subclass in
a manner  other than as  described  in clause (i) hereof  without the consent of
Holders of Certificates of such Class or Subclass  evidencing,  as to such Class
or Subclass,  Voting Interests aggregating not less than 66-2/3% or (iii) reduce
the aforesaid percentage of Certificates of any Class or Subclass the Holders of
which are required to consent to any such amendment,  without the consent of the
Holders of all Certificates of such Class or Subclass then outstanding.

      Notwithstanding any contrary provision of this Agreement the Trustee shall
not  consent  to any  amendment  to this  Agreement  unless it shall  have first
received  an  Opinion of Counsel  to the  effect  that such  amendment  will not
subject  either the  Upper-Tier  REMIC or the  Lower-Tier  REMIC to tax or cause
either  the  Upper-Tier  REMIC or the  Lower-Tier  REMIC to fail to qualify as a
REMIC at any time that any Certificates are outstanding.

      Promptly  after the  execution of any  amendment  requiring the consent of
Certificateholders,  the  Trustee  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 Trustee 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:

      (a)  changing the  Applicable  Unscheduled  Principal  Receipt  Period for
           Exhibit F-1 Mortgage Loans to a Mid-Month Receipt Period with respect
           to all Unscheduled Principal Receipts; or

      (b)  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 Trustee.

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 Trustee,  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 Trustee 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 Trustee to  institute  such action,  suit or
proceeding  in its own name as Trustee  hereunder  and shall have offered to the
Trustee such reasonable  indemnity as it may require against the cost,  expenses
and liabilities to be incurred therein or thereby,  and the Trustee, 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 Trustee, 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 Trustee  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 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 Trustee,  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  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 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, 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 Trustee  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  pursuant to Section
      8.08;

           (iii) the  appointment  of a  successor  trustee  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 7.250% per annum.

Section 11.02.    Cut-Off Date.

      The Cut-Off Date for the Certificates is October 1, 1997.

Section 11.03.    Cut-Off Date Aggregate Principal Balance.

      The Cut-Off Date Aggregate Principal Balance is $350,005,093.03.

Section 11.04.    Original Class A Percentage.

      The Original Class A Percentage is 95.84382243%.

Section 11.05.    Original Class A Subclass Principal Balances.

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

                                                   Original Class A
     Class A Subclass                        Subclass Principal Balance
       Class A-1                                 $      30,000,000.00
       Class A-2                                 $      16,587,000.00
       Class A-3                                 $      45,000,000.00
       Class A-5                                 $      63,670,000.00
       Class A-6                                 $      50,000,000.00
       Class A-7                                 $       6,666,000.00
       Class A-8                                 $      45,202,000.00
       Class A-9                                 $      10,000,000.00
       Class A-10                                $      45,193,000.00
       Class A-11                                $      19,985,300.00
       Class A-12                                $       2,664,700.00
       Class A-PO                                $         511,310.84
       Class A-LR                                $             100.00
       Class A-R                                 $             100.00

Section 11.06.    Original Class A Non-PO Principal Balance.

      The Original Class A Non-PO Principal Balance is $334,968,200.00.

Section 11.07.    Original Class A-4 Notional Amount.

      The Original Class A-4 Notional Amount is $8,517,591.00.

Section 11.08.  Original Component Principal Balance.

      As to the following Class A-8 Component,  the Component  Principal Balance
of such Component as of the Cut-Off Date, as follows:

                                                            Original Component
             Class A-8 Component                            Principal Balance
             Class A-8 PO Component                          $   8,905,000.00
             Class A-8 Scheduled Accrual Component           $  36,297,000.00


Section 11.09.    Original Subordinated Percentage.

      The Original Subordinated Percentage is 4.15617757%.

Section 11.10.    Original Class M Percentage.

      The Original Class M Percentage is 1.40202780%.

Section 11.11.    Original Class M Principal Balance.

      The Original Class M Principal Balance is $4,900,000.00.

Section 11.12.    Original Class M Fractional Interest.

      The Original Class M Fractional Interest is 2.75414976%.

Section 11.13.    Original Class B-1 Percentage.

      The Original Class B-1 Percentage is 1.35195538%.

Section 11.14.    Original Class B-2 Percentage.

      The Original Class B-2 Percentage is 0.55079664%.

Section 11.15.    Original Class B-3 Percentage.

      The Original Class B-3 Percentage is 0.30043453%.

Section 11.16.    Original Class B-4 Percentage.

      The Original Class B-4 Percentage is 0.25036211%.

Section 11.17.    Original Class B-5 Percentage.

      The Original Class B-5 Percentage is 0.30060111%.

Section 11.18.    Original Class B Principal Balance.

      The Original Class B Principal Balance is $9,625,582.19.

Section 11.19.    Original Class B Subclass Principal Balances.

      As to any Class B Certificate,  the Class B Subclass  Principal Balance of
such Subclass as of the Cut-Off Date, is as follows:

                                                    Original Class B
       Class B Subclass                        Subclass Principal Balance
         Class B-1                                 $       4,725,000.00
         Class B-2                                 $       1,925,000.00
         Class B-3                                 $       1,050,000.00
         Class B-4                                 $         875,000.00
         Class B-5                                 $       1,050,582.19

Section 11.20.    Original Class B-1 Fractional Interest.

      The Original Class B-1 Fractional Interest is 1.40219438%.

Section 11.21.    Original Class B-2 Fractional Interest.

      The Original Class B-2 Fractional Interest is 0.85139774%.

Section 11.22.    Original Class B-3 Fractional Interest.

      The Original Class B-3 Fractional Interest is 0.55096321%.

Section 11.23.    Original Class B-4 Fractional Interest.

      The Original Class B-4 Fractional Interest is 0.30060111%.

Section 11.24.    Closing Date.

      The Closing Date is October 30, 1997.

Section 11.25.    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 $35,000,509.30 (10% of the Cut-Off
Date Aggregate Principal Balance) at the time of any such purchase.

Section 11.26.    Wire Transfer Eligibility.

      With respect to the Class A (other than the Class A-4, Class A-WIO,  Class
A-R and Class A-LR Certificates),  the Class M and the Class B Certificates, the
minimum  Denomination  eligible for wire transfer on each  Distribution  Date is
$500,000.  With  respect  to the  Class A-4 and Class  A-WIO  Certificates,  the
minimum  Denomination  eligible for wire transfer on each  Distribution  Date is
100%  Percentage  Interest.  The Class A-R and Class A-LR  Certificates  are not
eligible for wire transfer.

Section 11.27.    Single Certificate.

      A Single Certificate for each Subclass of Class A Certificates (other than
the Class A-4, Class A-WIO, Class A-R and Class A-LR Certificates),  the Class M
Certificates and the Class B Certificates  (other than the Class B-3, Class B-4,
and  Class  B-5  Certificates)  represents  a  $100,000  Denomination.  A Single
Certificate for the Class A-4 Certificates represents a $2,839,000 Denomination.
A Single Certificate for the Class A-WIO Certificates  represents 25% Percentage
Interest.  A Single  Certificate  for the Class A-R and Class A-LR  Certificates
represents a $100  Denomination.  A Single  Certificate for the Class B-3, Class
B-4 and Class B-5 Certificates represents a $250,000 Denomination.

Section 11.28.    Servicing Fee Rate.

      The rate used to calculate  the Servicing Fee is equal to 0.250% per annum
or such other amount set forth on the Mortgage Loan Schedule.

Section 11.29.    Master Servicing Fee Rate.

      The rate used to calculate the Master Servicing Fee for each Mortgage Loan
is 0.016% per annum.



<PAGE>


      IN WITNESS WHEREOF,  the Seller,  the Master Servicer 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:
                                        Title:

                                    NORWEST BANK MINNESOTA, NATIONAL
                                    ASSOCIATION
                                       as Master Servicer

                                    By:
                                        Name:
                                        Title:

                                    FIRST UNION NATIONAL BANK
                                      as Trustee

                                    By:
                                        Name:
                                        Title:

Attest:
By:
Name:
Title:



<PAGE>



STATE OF NEW YORK                   )
                                        ss.:
COUNTY OF NEW YORK                  )

      On this 30th day of October,  1997,  before me, a notary public in and for
the State of New York,  personally Patrick Greene,  known to me who, being by me
duly sworn, did depose and say that he resides at McLean,  Virginia;  that he is
an Assistant 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 NEW YORK                   )
                                        ss.:
COUNTY OF NEW YORK                  )

      On this 30th day of October,  1997,  before me, a notary public in and for
the State of New York, personally appeared Richard Poska, known to me who, being
by me duly  sworn,  did depose and say that he resides at  Frederick,  Maryland;
that he 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 he  signed  his  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 30th day of October,  1997,  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  s/he  resides  at
- -----------------,  North Carolina; that s/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/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 30th day of October,  1997,  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 1997-17 Applicable Unscheduled Principal Receipt Period

                                      Full Unscheduled       Partial Unscheduled
Servicer                              Principal Receipts     Principal Receipts

Countrywide Home Loans, Inc.          Prior Month            Prior Month

First Bank National Association       Prior Month            Prior Month

The Huntington Mortgage Company       Prior Month            Prior Month

National City Mortgage Company        Prior Month            Prior Month

Norwest Mortgage, Inc. (Exhibit F-1)  Prior Month            Prior Month

Norwest Mortgage, Inc. (Exhibit F-2)  Mid-Month              Mid-Month

FT Mortgage Companies                 Mid-Month              Prior-Month

Citicorp Mortgage Inc.                Prior-Month            Prior-Month

Suntrust Mortgage, Inc.               Prior 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 TRUSTEE 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 1997-17 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 OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                            First Distribution Date: November 25, 1997

Percentage Interest evidenced         Denomination:  $
by this Certificate: %



<PAGE>



      THIS CERTIFIES THAT --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  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,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution Amount for the Class A-1 Certificates required to be distributed to
Holders  of  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 Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses 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 6.750% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-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 Trustee for that purpose in the notice
of final distribution.

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

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

      Unless this Certificate has been countersigned by an authorized officer of
the Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                       First Union National Bank,
                                         Trustee

                                        By-------------------------------
                                               Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

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 TRUSTEE 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 1997-17 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 OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                            First Distribution Date: November 25, 1997

Percentage Interest evidenced         Denomination:  $
by this Certificate: %



<PAGE>



      THIS CERTIFIES THAT --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  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,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution Amount for the Class A-2 Certificates required to be distributed to
Holders  of  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 Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses 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 6.750% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-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 Trustee for that purpose in the notice
of final distribution.

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

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

      Unless this Certificate has been countersigned by an authorized officer of
the Trustee, 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 Trustee has caused this Certificate to
be duly executed as of the date set forth below.


Dated:

                                       First Union National Bank,
                                         Trustee

                                       By----------------------------
                                                       Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

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  TRUSTEE  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 1997-17 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 OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                           First Distribution Date:  November 25, 1997

Percentage Interest evidenced        Denomination:  $
by this Certificate: %



<PAGE>



      THIS CERTIFIES THAT --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  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,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution Amount for the Class A-3 Certificates required to be distributed to
Holders  of  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 Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses 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 6.750% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-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 Trustee for that purpose in the notice
of final distribution.

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

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

      Unless this Certificate has been countersigned by an authorized officer of
the Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                     First Union National Bank,
                                       Trustee

                                     By----------------------------
                                         Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

By ------------------------
   Authorized Officer




<PAGE>

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-17 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 OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY
OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

      THE  NOTIONAL  AMOUNT OF THIS  CERTIFICATE  WILL BE  REDUCED IN THE MANNER
DESCRIBED IN THE POOLING AND SERVICING AGREEMENT.  ACCORDINGLY,  THE OUTSTANDING
NOTIONAL  AMOUNT OF THIS  CERTIFICATE  AT ANY TIME MAY BE LESS THAN THE  INITIAL
NOTIONAL AMOUNT REPRESENTED HEREBY.

Certificate No.                      Cut-Off Date:   October 1, 1997

CUSIP No.:                           First Distribution Date:  November 25, 1997

Percentage Interest evidenced        Denomination:  $  (initial Class A-4
by this Certificate: %                                  Notional Amount)



<PAGE>



      THIS CERTIFIES THAT --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  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,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
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.  The Class A-4
Certificates are not entitled to distributions in respect of principal. Interest
will accrue on the Class A-4  Certificates  each month in an amount equal to the
product of (i) 1/12th of 7.500% and (ii) the Class A-4 Notional Amount as of the
related  Distribution  Date.  The  amount  of  interest  which  accrues  on this
Certificate  in any month  will be  subject  to  reduction  with  respect to any
Non-Supported  Interest  Shortfall and the interest  portion of certain Realized
Losses allocated to the Class A-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 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 Trustee 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 October  30,  1997,  at an issue  price of
19.93017% of the initial Class A-4 Notional Amount,  including accrued interest,
and a stated  redemption  price at maturity equal to all interest  distributions
hereon,  and is issued with original issue  discount  ("OID") for federal income
tax purposes.  Assuming that this  Certificate pays in accordance with projected
cash flows  reflecting the Prepayment  Assumption of 225% SPA (as defined in the
Prospectus Supplement dated October 22, 1997 with respect to the offering of the
Class A-1, A-2,  Class A-3,  Class A-4,  Class A-5,  Class A-6, Class A-7, Class
A-9, Class A-10,  Class A-11,  Class A-12, Class A-R, Class A-LR, Class M, Class
B-1 and Class B-2 Certificates)  used to price this Certificate:  (i) the amount
of OID as a percentage of the initial Class A-4 Notional Amount is approximately
5.76419739%;  (ii) the annual yield to maturity of this Certificate,  compounded
monthly,  is approximately  13.55%; and (iii) the amount of OID allocable to the
short  first  accrual  period  (October  30,  1997 to  November  25,  1997) as a
percentage of the initial Class A-4 Notional Amount,  calculated using the exact
method, is approximately 0.18742127%.

      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 Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                      First Union National Bank,
                                        Trustee

                                      By----------------------------
                                           Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

By ------------------------
   Authorized Officer





<PAGE>


                                   EXHIBIT A-5
                     [FORM OF FACE OF CLASS A-5 CERTIFICATE]

             [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED
 REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE TRUSTEE 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 1997-17 CLASS A-5

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

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

      THIS  CERTIFICATE  DOES NOT EVIDENCE AN OBLIGATION  OF, OR AN INTEREST IN,
THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                         First Distribution Date:  November 25, 1997

Percentage Interest evidenced      Denomination:  $
by this Certificate: %



<PAGE>



      THIS CERTIFIES THAT --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-5  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution Amount for the Class A-5 Certificates required to be distributed to
Holders  of  Class  A-5  Certificates  on such  Distribution  Date,  subject  to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-5 Certificates  applicable to each  Distribution Date will be 7.250% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-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 Trustee for that purpose in the notice
of final distribution.

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

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

      Unless this Certificate has been countersigned by an authorized officer of
the Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                      First Union National Bank,
                                        Trustee

                                      By----------------------------
                                             Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

By ------------------------
   Authorized Officer




<PAGE>

                                   EXHIBIT A-6
                     [FORM OF FACE OF CLASS A-6 CERTIFICATE]

             [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED
 REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE TRUSTEE 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 1997-17 CLASS A-6

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

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

      THIS  CERTIFICATE  DOES NOT EVIDENCE AN OBLIGATION  OF, OR AN INTEREST IN,
THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                           First Distribution Date:  November 25, 1997

Percentage Interest evidenced        Denomination:  $
by this Certificate: %




<PAGE>




      THIS CERTIFIES THAT  ----------------------------  is the registered owner
of  the   Percentage   Interest   evidenced  by  this   Certificate  in  monthly
distributions to the Holders of Class A-6  Certificates  with respect to a Trust
Estate consisting of a pool of fixed interest rate,  conventional,  monthly pay,
fully amortizing,  first lien, one- to four-family  residential  mortgage loans,
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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution Amount for the Class A-6 Certificates required to be distributed to
Holders  of  Class  A-6  Certificates  on such  Distribution  Date,  subject  to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-6 Certificates  applicable to each  Distribution Date will be 7.150% 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-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 Trustee for that purpose in the notice
of final distribution.

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

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

      Unless this Certificate has been countersigned by an authorized officer of
the Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                      First Union National Bank,
                                        Trustee

                                      By----------------------------
                                              Authorized Officer


Countersigned:

First Union National Bank,
  Trustee
By ------------------------
   Authorized Officer

<PAGE>



                                   EXHIBIT A-7
                     [FORM OF FACE OF CLASS A-7 CERTIFICATE]

             [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED
 REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE TRUSTEE 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 1997-17 CLASS A-7

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

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

      THIS  CERTIFICATE  DOES NOT EVIDENCE AN OBLIGATION  OF, OR AN INTEREST IN,
THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                           First Distribution Date:  November 25, 1997

Percentage Interest evidenced        Denomination:  $
by this Certificate: %




<PAGE>




      THIS CERTIFIES THAT --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-7  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution Amount for the Class A-7 Certificates required to be distributed to
Holders  of  Class  A-7  Certificates  on such  Distribution  Date,  subject  to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-7 Certificates  applicable to each  Distribution Date will be 8.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-7 Certificates, as described in the Agreement.

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

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

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

      Unless this Certificate has been countersigned by an authorized officer of
the Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                    First Union National Bank,
                                      Trustee

                                     By----------------------------
                                             Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

By ------------------------
     Authorized Officer

<PAGE>





                                   EXHIBIT A-8
                     [FORM OF FACE OF CLASS A-8 CERTIFICATE]

      THIS  CERTIFICATE  HAS NOT  BEEN  AND WILL  NOT BE  REGISTERED  UNDER  THE
SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"),  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.

      A  PURCHASER  OF THIS  CERTIFICATE  THAT IS A PLAN (AS  DEFINED IN SECTION
5.02(c) OF THE POOLING AND SERVICING AGREEMENT) OR PERSON ACTING ON BEHALF OF OR
INVESTING  THE  ASSETS OF A PLAN WILL BE  REQUIRED  TO  REPRESENT  THAT IT IS AN
"ACCREDITED  INVESTOR" AS DEFINED IN RULE  501(a)(1)  OF  REGULATION D UNDER THE
ACT.

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-17 CLASS A-8

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

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

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

      UNTIL THE CLASS A-8  SCHEDULED  ACCRUAL  COMPONENT  ACCRETION  TERMINATION
DATE,  THE INTEREST THAT ACCRUES ON A PORTION OF 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:   October 1, 1997

CUSIP No.:                           First Distribution Date:  November 25, 1997

Percentage Interest evidenced        Denomination: $
by this Certificate:  %




<PAGE>




      THIS CERTIFIES THAT --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-8  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution Amount for the Class A-8 Certificates required to be distributed to
Holders  of  Class  A-8  Certificates  on such  Distribution  Date,  subject  to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement. For the purposes of determining
distributions of interest and in reduction of principal  balance,  the Class A-8
Certificates  consist of five components  (each, a "Component" and individually,
the "Class A-8 Scheduled Accrual  Component,"  "Class A-8 PO Component,"  "Class
A-8 IO A  Component,"  the  "Class A-8 IO B  Component"  and the "Class A-8 IO C
Component").  The amount of interest which accrues on the Class A-8 Certificates
in any month will equal the sum of the interest  which  accrues on the Class A-8
Components  (other than the Class A-8 PO  Component).  The  component  rate (the
"Component Rate") on (i) the Class A-8 Scheduled Accrual Component applicable to
each  Distribution  Date  will be  7.500%  per  annum,  (ii) the  Class A-8 IO A
Component  applicable to each Distribution Date will be 7.500% per annum,  (iii)
the Class A-8 IO B Component  applicable to each Distribution Date will be equal
to the the Weighted  Average Net Mortgage  Interest Rate of the Premium Mortgage
Loans on the first day of such  month  minus  7.250% and (iv) the Class A-8 IO C
Component  applicable  to each  Distribution  Date  will be  7.500%  per  annum.
Interest  with  respect to each  Component  will accrue  during each month in an
amount  equal  to the  product  of (i)  1/12th  of the  Component  Rate for such
Component and (ii) the outstanding  Component  Principal  Balance in the case of
the Class A-8 Scheduled Accrual Component or the outstanding  notional amount in
the case of the Class A-8 IO A Component,  Class A-8 IO B Component or Class A-8
IO C Component.  Prior to the Class A-8 Scheduled  Accrual  Component  Accretion
Termination  Date, no distribution of interest on this  Certificate with respect
to its Class A-8 Scheduled  Accrual  Component will be made.  Prior to the Class
A-8 Scheduled Accrual Component  Accretion  Termination Date, interest otherwise
available for  distribution  on this  Certificate  with respect to its Class A-8
Scheduled Accrual Component will be added to the Component  Principal Balance of
such Component on each  Distribution  Date. The amount of interest which accrues
on this  Certificate  in any month will be subject to reduction  with respect to
any  Non-Supported  Interest  Shortfall  and the  interest  portion  of  certain
Realized Losses  allocated to the Class A-8  Certificates  with respect to their
Components.  The Class A-8  Certificates  are not entitled to  distributions  of
interest with respect to the Class A-8 PO Component.

      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 Trustee for that purpose in the notice
of final distribution.

      No transfer of a Class A-8  Certificate  will be made unless such transfer
is exempt from the  registration  requirements of the Securities Act of 1933, as
amended (the "Act"),  and any  applicable  state  securities  laws or is made in
accordance  with the 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
Act,  the  Trustee or the Seller may require the Holder to deliver an opinion of
counsel acceptable to and in form and substance  satisfactory to the Trustee 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 Act 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 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 Trustee and the Seller
will also require if the transferee is a Plan or a person acting on behalf of or
investing  the  assets  of a  Plan,  a  representation  letter,  in the  form as
described in the  Agreement,  stating  that such  transferee  is an  "accredited
investor" as defined in Rule 501(a)(1) of the Act.

      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 October  30,  1997,  at an issue  price of
100.63297%,  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 225% SPA (as defined in the Prospectus Supplement dated
October 22, 1997 with respect to the offering of the Class A-1, A-2,  Class A-3,
Class A-4, Class A-5,  Class A-6, Class A-7, Class A-9, Class A-10,  Class A-11,
Class  A-12,   Class  A-R,  Class  A-LR,  Class  M,  Class  B-1  and  Class  B-2
Certificates)  used  to  price  this  Certificate:  (i) the  amount  of OID as a
percentage of the initial principal balance of this Certificate is approximately
77.10938950%; (ii) the annual yield to maturity of this Certificate,  compounded
monthly,  is  approximately  7.69%; and (iii) the amount of OID allocable to the
short  first  accrual  period  (October  30,  1997 to  November  25,  1997) as a
percentage  of the initial  principal  balance of this  Certificate,  calculated
using the exact method, is approximately 0.53704483%.

      Each Component of 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 Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                     First Union National Bank,
                                       Trustee

                                     By----------------------------
                                           Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

By ------------------------
   Authorized Officer


<PAGE>


                                   EXHIBIT A-9
                     [FORM OF FACE OF CLASS A-9 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
    DEPOSITORY TRUST COMPANY TO THE TRUSTEE 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 1997-17 CLASS A-9

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

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

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

      UNTIL THE CLASS A-9 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:   October 1, 1997

CUSIP No.:                          First Distribution Date:  November 25, 1997

Percentage Interest evidenced       Denomination:  $
by this Certificate: %



<PAGE>



      THIS CERTIFIES THAT --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-9  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution Amount for the Class A-9 Certificates required to be distributed to
Holders  of  Class  A-9  Certificates  on such  Distribution  Date,  subject  to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-9 Certificates  applicable to each  Distribution Date will be 7.500% per
annum.  Prior to the Class A-9 Accretion  Termination  Date, no  distribution of
interest  on this  Certificate  will be made.  Prior to the Class A-9  Accretion
Termination  Date,   interest  otherwise  available  for  distribution  on  this
Certificate will be added to the Class A Subclass Principal Balance of the Class
A-9 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-9  Certificates,  as described in the
Agreement.

      Distributions  on this  Certificate  will be made on behalf of the Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency  specified by the Trustee 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 October  30,  1997,  at an issue  price of
98.04167%, 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
225% SPA (as defined in the  Prospectus  Supplement  dated October 22, 1997 with
respect to the offering of the Class A-1, A-2,  Class A-3, Class A-4, Class A-5,
Class A-6, Class A-7, Class A-9, Class A-10,  Class A-11, Class A-12, Class A-R,
Class A-LR,  Class M, Class B-1 and Class B-2  Certificates)  used to price this
Certificate:  (i) the amount of OID as a  percentage  of the  initial  principal
balance of this  Certificate  is  approximately  237.65451943%;  (ii) the annual
yield to maturity of this  Certificate,  compounded  monthly,  is  approximately
7.63%;  and (iii) the amount of OID allocable to the short first accrual  period
(October 30, 1997 to November 25, 1997) as a percentage of the initial principal
balance of this Certificate, calculated using the exact method, is approximately
0.51954594%.

      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 Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                       First Union National Bank,
                                         Trustee

                                       By----------------------------
                                             Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

By ------------------------
   Authorized Officer




<PAGE>


                                  EXHIBIT A-10
                    [FORM OF FACE OF CLASS A-10 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
    DEPOSITORY TRUST COMPANY TO THE TRUSTEE 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 1997-17 CLASS A-10

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

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

      THIS  CERTIFICATE  DOES NOT EVIDENCE AN OBLIGATION  OF, OR AN INTEREST IN,
THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                          First Distribution Date:  November 25, 1997


Percentage Interest evidenced       Denomination: $
by this Certificate:  %




<PAGE>




      THIS CERTIFIES THAT --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of Class  A-10  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution  Amount for the Class A-10 Certificates  required to be distributed
to Holders of Class A-10  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-10 Certificates  applicable to each Distribution Date will be 7.250% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-10 Certificates, as described in the Agreement.

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

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

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

      Unless this Certificate has been countersigned by an authorized officer of
the Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                      First Union National Bank,
                                        Trustee

                                      By----------------------------
                                            Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

By -------------------------
   Authorized Officer


<PAGE>




                                  EXHIBIT A-11
                    [FORM OF FACE OF CLASS A-11 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
    DEPOSITORY TRUST COMPANY TO THE TRUSTEE 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 1997-17 CLASS A-11

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

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

      THIS  CERTIFICATE  DOES NOT EVIDENCE AN OBLIGATION  OF, OR AN INTEREST IN,
THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                           First Distribution Date:  November 25, 1997


Percentage Interest evidenced        Denomination: $
by this Certificate:  %




<PAGE>




      THIS CERTIFIES THAT  ----------------------------  is the registered owner
of  the   Percentage   Interest   evidenced  by  this   Certificate  in  monthly
distributions to the Holders of Class A-11  Certificates with respect to a Trust
Estate consisting of a pool of fixed interest rate,  conventional,  monthly pay,
fully amortizing,  first lien, one- to four-family  residential  mortgage loans,
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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution  Amount for the Class A-11 Certificates  required to be distributed
to Holders of Class A-11  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-11 Certificates  applicable to each Distribution Date will be 7.150% 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-11 Certificates, as described in the Agreement.

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

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

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

      Unless this Certificate has been countersigned by an authorized officer of
the Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                   First Union National Bank,
                                     Trustee

                                   By----------------------------
                                           Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

By ------------------------
   Authorized Officer


<PAGE>




                                  EXHIBIT A-12
                    [FORM OF FACE OF CLASS A-12 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
    DEPOSITORY TRUST COMPANY TO THE TRUSTEE 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 1997-17 CLASS A-12

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

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

      THIS  CERTIFICATE  DOES NOT EVIDENCE AN OBLIGATION  OF, OR AN INTEREST IN,
THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                           First Distribution Date:  November 25, 1997


Percentage Interest evidenced        Denomination: $
by this Certificate:  %




<PAGE>




      THIS CERTIFIES THAT  ----------------------------  is the registered owner
of  the   Percentage   Interest   evidenced  by  this   Certificate  in  monthly
distributions to the Holders of Class A-12  Certificates with respect to a Trust
Estate consisting of a pool of fixed interest rate,  conventional,  monthly pay,
fully amortizing,  first lien, one- to four-family  residential  mortgage loans,
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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution  Amount for the Class A-12 Certificates  required to be distributed
to Holders of Class A-12  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 Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-12 Certificates  applicable to each Distribution Date will be 8.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-12 Certificates, as described in the Agreement.

      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 Trustee for that purpose in the notice
of final distribution.

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

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

      Unless this Certificate has been countersigned by an authorized officer of
the Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                   First Union National Bank,
                                     Trustee

                                   By---------------------------
                                         Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

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 1997-17, 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 OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                         First Distribution Date:  November 25, 1997

Percentage Interest evidenced      Denomination:  $
by this Certificate: %



<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,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution  Amount for the Class A-PO Certificates  required to be distributed
to Holders of 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.  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  Trustee  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 Trustee or the Seller may require the Holder to deliver an opinion
of counsel  acceptable to and in form and substance  satisfactory to the Trustee
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  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  Trustee and the Seller  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, or is acting
on behalf of or using the assets of a Plan, (a) an opinion of counsel acceptable
to and in form and  substance  satisfactory  to the  Trustee 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 October  30,  1997,  at an issue  price of
58.00000%  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 225% SPA (as
defined in the Prospectus  Supplement dated October 22, 1997 with respect to the
offering of the Class A-1,  A-2,  Class A-3,  Class A-4,  Class A-5,  Class A-6,
Class A-7, Class A-9, Class A-10, Class A-11, Class A-12, Class A-R, Class A-LR,
Class M, Class B-1 and Class B-2  Certificates)  used to price this Certificate:
(i) the amount of OID as a percentage of the initial  principal  balance of this
Certificate is approximately 42.00000000%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  9.15%; and (iii) the
amount of OID allocable to the short first accrual  period  (October 30, 1997 to
November  25,  1997) as a percentage  of the initial  principal  balance of this
Certificate, calculated using the exact method, is approximately 0.36841194%.

      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 Trustee 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                      First Union National Bank,
                                        Trustee

                                      By---------------------------
                                             Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


By ------------------------
   Authorized Officer


<PAGE>


                                  EXHIBIT A-WIO
                    [FORM OF FACE OF CLASS A-WIO 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 1997-17 CLASS A-WIO

                    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 OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY
OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

Certificate No.                      Cut-Off Date:   October 1, 1997

CUSIP No.:                           First Distribution Date:  November 25, 1997

Percentage Interest evidenced
by this Certificate:      %



<PAGE>



      THIS CERTIFIES THAT --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of Class  A-WIO  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,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution Amount for the Class A-WIO Certificates  required to be distributed
to Holders of Class A-WIO  Certificates on such  Distribution  Date,  subject to
adjustment  in certain  events as  specified in the  Agreement.  The Class A-WIO
Certificates  will not be entitled  to  distributions  in respect of  principal.
Interest  will  accrue on the Class A-WIO  Certificates  during each month in an
amount  equal to the  product  of (A)  1/12th of (i) the  Weighted  Average  Net
Mortgage  Interest Rate of the Premium  Mortgage  Loans on the first day of such
month  minus  (ii)  7.250%  and (B) the Class  A-WIO  Notional  Amount as of the
related  Distribution  Date.  The  amount  of  interest  which  accrues  on this
Certificate  in any month  will be  subject  to  reduction  with  respect to any
Non-Supported  Interest  Shortfall and the interest  portion of certain Realized
Losses allocated to the Class A-WIO Certificates, as described in the Agreement.

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

      No transfer of a Class A-WIO 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 Trustee or the Seller may require the Holder to deliver an opinion
of counsel  acceptable to and in form and substance  satisfactory to the Trustee
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  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  Trustee and the Seller  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, or is acting
on behalf of or using the assets of a Plan, (a) an opinion of counsel acceptable
to and in form and  substance  satisfactory  to the  Trustee 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 October  30,  1997,  at an issue  price of
1.06919% of the initial Class A-WIO Notional Amount, including accrued interest,
and a stated  redemption  price at maturity equal to all interest  distributions
hereon,  and is issued with original issue  discount  ("OID") for federal income
tax  purposes.  Assuming  (a) that  this  Certificate  pays in  accordance  with
projected  cash  flows  reflecting  the  Prepayment  Assumption  of 225% SPA (as
defined in the Prospectus  Supplement dated October 22, 1997 with respect to the
offering of the Class A-1,  A-2,  Class A-3,  Class A-4,  Class A-5,  Class A-6,
Class A-7, Class A-9, Class A-10, Class A-11, Class A-12, Class A-R, Class A-LR,
Class M, Class B-1 and Class B-2  Certificates)  used to price this  Certificate
and (b) that the  Pass-Through  Rate on this  Certificate  changes in accordance
with the  Prepayment  Assumption:  (i) the amount of OID as a percentage  of the
initial  Class A-WIO  Notional  Amount is  approximately  1.06926426%;  (ii) the
annual  yield  to  maturity  of  this  Certificate,   compounded   monthly,   is
approximately  16.33%;  and (iii) the amount of OID allocable to the short first
accrual  period  (October 30, 1997 to November 25, 1997) as a percentage  of the
initial Class A-WIO  Notional  Amount,  calculated  using the exact  method,  is
approximately 0.01210766%.

      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 Trustee 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                     First Union National Bank,
                                       Trustee

                                     By----------------------------
                                         Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

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 TRUSTEE TO THE EFFECT THAT,  AMONG OTHER THINGS,  IT IS NOT A
DISQUALIFIED  ORGANIZATION,  AS SUCH TERM IS DEFINED IN CODE SECTION 860E(e)(5),
AN AGENT  (INCLUDING A BROKER,  NOMINEE OR OTHER  MIDDLEMAN)  FOR A DISQUALIFIED
ORGANIZATION OR A NON-PERMITTED FOREIGN HOLDER, AS DEFINED IN SECTION 5.02(d) OF
THE POOLING AND SERVICING AGREEMENT AND TO HAVE AGREED TO SUCH AMENDMENTS TO THE
POOLING AND  SERVICING  AGREEMENT AS MAY BE REQUIRED TO FURTHER  EFFECTUATE  THE
RESTRICTIONS  ON  TRANSFERS TO  DISQUALIFIED  ORGANIZATIONS,  AGENTS  THEREOF OR
NON-PERMITTED FOREIGN HOLDERS.

THE HOLDER OF THIS CLASS A-R  CERTIFICATE,  BY ACCEPTANCE  HEREOF,  IS DEEMED TO
HAVE  AGREED TO THE  DESIGNATION  OF THE MASTER  SERVICER AS ITS AGENT TO ACT AS
"TAX MATTERS PERSON" OF THE UPPER-TIER  REMIC TO PERFORM THE FUNCTIONS OF A "TAX
MATTERS PARTNER" FOR PURPOSES OF SUBCHAPTER C OF CHAPTER 63 OF SUBTITLE F OF THE
CODE, OR, IF SO REQUESTED BY THE MASTER  SERVICER,  TO ACT AS TAX MATTERS PERSON
OF THE UPPER-TIER REMIC.

THIS  CERTIFICATE  MAY NOT BE PURCHASED BY OR TRANSFERRED TO ANY PERSON WHICH IS
AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF
THE EMPLOYEE  RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED  ("ERISA"),  OR
SECTION 4975 OF THE CODE OR A GOVERNMENTAL  PLAN, AS DEFINED IN SECTION 3(32) OF
ERISA SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A MATERIAL EXTENT,
SIMILAR  TO THE  FOREGOING  PROVISIONS  OF ERISA OR THE  CODE  (COLLECTIVELY,  A
"PLAN"), OR ANY PERSON ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN.




<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-17, 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 OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                          First Distribution Date:  November 25, 1997

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



<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,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution Amount for the Class A-R Certificate  required to be distributed to
the Holders 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 Subclasses of Class A Certificates
will not commence on the first Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses 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 7.250% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-R Certificate, as described in the Agreement.

      Distributions  on this  Certificate  will be made on behalf of the Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate  Register.  Notwithstanding the
above, the final  distribution on this Certificate will be made after due notice
of the pendency of such distribution and only upon presentation and surrender of
this  Certificate  at the office or agency  specified  by the  Trustee  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 Trustee, by manual signature,  this Certificate shall not be entitled to any
benefit under the Agreement or be valid for any purpose.

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


Dated:

                                      First Union National Bank,
                                        Trustee


                                      By----------------------------
                                          Authorized Officer

Countersigned:

First Union National Bank,
  Trustee

By ------------------------
   Authorized Officer

<PAGE>


                                  EXHIBIT A-LR
                    [Form of Face of Class A-LR Certificate]

FOR U.S. FEDERAL INCOME TAX PURPOSES,  THIS CERTIFICATE IS A "RESIDUAL INTEREST"
IN A "REAL  ESTATE  MORTGAGE  INVESTMENT  CONDUIT" AS THOSE  TERMS ARE  DEFINED,
RESPECTIVELY,  IN SECTIONS  860G(a)(2) AND 860D OF THE INTERNAL  REVENUE CODE OF
1986, AS AMENDED (THE "CODE").  A TRANSFEREE OF THIS CERTIFICATE,  BY ACCEPTANCE
HEREOF,  IS  DEEMED  TO  HAVE  ACCEPTED  THIS  CERTIFICATE  SUBJECT  TO  CERTAIN
RESTRICTIONS ON TRANSFERABILITY,  AS SET FORTH IN SECTION 5.02(d) OF THE POOLING
AND  SERVICING  AGREEMENT,  AND SHALL BE REQUIRED TO FURNISH AN AFFIDAVIT TO THE
TRANSFEROR AND THE TRUSTEE TO THE EFFECT THAT,  AMONG OTHER THINGS,  IT IS NOT A
DISQUALIFIED  ORGANIZATION,  AS SUCH TERM IS DEFINED IN CODE SECTION 860E(e)(5),
AN AGENT  (INCLUDING A BROKER,  NOMINEE OR OTHER  MIDDLEMAN)  FOR A DISQUALIFIED
ORGANIZATION OR A NON-PERMITTED FOREIGN HOLDER, AS DEFINED IN SECTION 5.02(d) OF
THE POOLING AND SERVICING AGREEMENT AND TO HAVE AGREED TO SUCH AMENDMENTS TO THE
POOLING AND  SERVICING  AGREEMENT AS MAY BE REQUIRED TO FURTHER  EFFECTUATE  THE
RESTRICTIONS  ON  TRANSFERS TO  DISQUALIFIED  ORGANIZATIONS,  AGENTS  THEREOF OR
NON-PERMITTED FOREIGN HOLDERS.

THE HOLDER OF THIS CLASS A-LR  CERTIFICATE,  BY ACCEPTANCE  HEREOF, IS DEEMED TO
HAVE  AGREED TO THE  DESIGNATION  OF THE MASTER  SERVICER AS ITS AGENT TO ACT AS
"TAX MATTERS PERSON" OF THE LOWER-TIER  REMIC TO PERFORM THE FUNCTIONS OF A "TAX
MATTERS PARTNER" FOR PURPOSES OF SUBCHAPTER C OF CHAPTER 63 OF SUBTITLE F OF THE
CODE, OR, IF SO REQUESTED BY THE MASTER  SERVICER,  TO ACT AS TAX MATTERS PERSON
OF THE LOWER-TIER REMIC.

THIS  CERTIFICATE  MAY NOT BE PURCHASED BY OR TRANSFERRED TO ANY PERSON WHICH IS
AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT  ARRANGEMENT  SUBJECT TO TITLE I OF
THE EMPLOYEE  RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED  ("ERISA"),  OR
SECTION 4975 OF THE CODE OR A GOVERNMENTAL  PLAN, AS DEFINED IN SECTION 3(32) OF
ERISA SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A MATERIAL EXTENT,
SIMILAR  TO THE  FOREGOING  PROVISIONS  OF ERISA OR THE  CODE  (COLLECTIVELY,  A
"PLAN"), OR ANY PERSON ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN.




<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 1997-17, CLASS A-LR


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


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

      THIS  CERTIFICATE  DOES NOT EVIDENCE AN OBLIGATION  OF, OR AN INTEREST IN,
THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                          First Distribution Date:  November 25, 1997

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



<PAGE>



      THIS CERTIFIES THAT  -------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holder of the Class A-LR  Certificate  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 Subclass
Distribution Amount for the Class A-LR Certificate required to be distributed to
the Holders of the Class A-LR Certificate on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
will not commence on the first Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-LR Certificate  applicable to each  Distribution Date will be 7.250% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-LR Certificate, as described in the Agreement.

      Distributions  on this  Certificate  will be made on behalf of the Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate  Register.  Notwithstanding the
above, the final  distribution on this Certificate will be made after due notice
of the pendency of such distribution and only upon presentation and surrender of
this  Certificate  at the office or agency  specified  by the  Trustee  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 Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                       First Union National Bank,
                                         Trustee


                                       By----------------------------
                                             Authorized Officer

Countersigned:

First Union National Bank,
  Trustee

By ------------------------
   Authorized Officer



<PAGE>


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

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A CERTIFICATES
AND THE CLASS M CERTIFICATES AS DESCRIBED IN THE POOLING AND SERVICING AGREEMENT
REFERRED TO HEREIN.

EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE  POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN,  THIS  CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A  REPRESENTATION  LETTER  STATING  EITHER (A)
THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN  OR  OTHER  RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974,  AS AMENDED  ("ERISA"),  OR SECTION 4975 OF THE  INTERNAL  REVENUE CODE OF
1986, AS AMENDED (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN, AS DEFINED IN SECTION
3(32) OF  ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL  LAW  WHICH IS, TO A
MATERIAL  EXTENT,  SIMILAR  TO THE  FOREGOING  PROVISIONS  OF  ERISA OR THE CODE
(COLLECTIVELY, A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS
OF A PLAN OR (B)  SUBJECT TO CERTAIN  CONDITIONS  SET FORTH IN THE  POOLING  AND
SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS CERTIFICATE
IS AN "INSURANCE COMPANY GENERAL ACCOUNT."





<PAGE>





                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-17, 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 lans, 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 OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                          First Distribution Date:  November 25, 1997

Percentage Interest evidenced       Denomination:  $
by this Certificate: %



<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,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 the Class M Certificates as specified in
the Agreement,  any Class B-1 Distribution  Amount required to be distributed to
Holders  of  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
7.250% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-1 Certificates, as described in the Agreement.

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

      No  transfer  of a Class B-1  Certificate  will be made  unless the Holder
hereof  desiring to make any such transfer  shall deliver to the Trustee and the
Seller (i) a representation  letter,  in the form as described in the Agreement,
stating either (a) that the transferee is not a Plan and is not acting on behalf
of a Plan or using the assets of a Plan to effect  such  purchase or (b) subject
to certain conditions described in the Agreement,  that the source of funds used
to purchase this Certificate is an "insurance  company general account," or (ii)
if such  transferee  is a Plan,  or is  acting  on behalf of a Plan or using the
assets  of a Plan,  (a) an  opinion  of  counsel  acceptable  to and in form and
substance  satisfactory  to the Trustee  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  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 Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                     First Union National Bank,
                                       Trustee

                                     By----------------------------
                                          Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


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,  THE  CLASS M  CERTIFICATES  AND THE  CLASS  B-1  CERTIFICATES  AS
DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE  POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN,  THIS  CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A  REPRESENTATION  LETTER  STATING  EITHER (A)
THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN  OR  OTHER  RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974,  AS AMENDED  ("ERISA"),  OR SECTION 4975 OF THE  INTERNAL  REVENUE CODE OF
1986, AS AMENDED (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN, AS DEFINED IN SECTION
3(32) OF  ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL  LAW  WHICH IS, TO A
MATERIAL  EXTENT,  SIMILAR  TO THE  FOREGOING  PROVISIONS  OF  ERISA OR THE CODE
(COLLECTIVELY, A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS
OF A PLAN OR (B)  SUBJECT TO CERTAIN  CONDITIONS  SET FORTH IN THE  POOLING  AND
SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS CERTIFICATE
IS AN "INSURANCE COMPANY GENERAL ACCOUNT."





<PAGE>



                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-17, 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 OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                        First Distribution Date:  November 25, 1997

Percentage Interest evidenced     Denomination:  $
by this Certificate: %



<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,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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,  the Class M Certificates  and each Subclass
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  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
7.250% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-2 Certificates, as described in the Agreement.

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

      No  transfer  of a Class B-2  Certificate  will be made  unless the Holder
hereof  desiring to make any such transfer  shall deliver to the Trustee and the
Seller (i) a representation  letter,  in the form as described in the Agreement,
stating either (a) that the transferee is not a Plan and is not acting on behalf
of a Plan or using the assets of a Plan to effect  such  purchase or (b) subject
to certain conditions described in the Agreement,  that the source of funds used
to purchase this Certificate is an "insurance  company general account," or (ii)
if such  transferee  is a Plan,  or is  acting  on behalf of a Plan or using the
assets  of a Plan,  (a) an  opinion  of  counsel  acceptable  to and in form and
substance  satisfactory  to the Trustee  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  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 Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                    First Union National Bank,
                                      Trustee

                                    By----------------------------
                                           Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


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 M 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  EITHER (A)
THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN  OR  OTHER  RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974,  AS AMENDED  ("ERISA"),  OR SECTION 4975 OF THE  INTERNAL  REVENUE CODE OF
1986, AS AMENDED (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN, AS DEFINED IN SECTION
3(32) OF  ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL  LAW  WHICH IS, TO A
MATERIAL  EXTENT,  SIMILAR  TO THE  FOREGOING  PROVISIONS  OF  ERISA OR THE CODE
(COLLECTIVELY, A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS
OF A PLAN OR (B)  SUBJECT TO CERTAIN  CONDITIONS  SET FORTH IN THE  POOLING  AND
SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS CERTIFICATE
IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>



                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-17, 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 OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                           First Distribution Date:  November 25, 1997

Percentage Interest evidenced        Denomination:  $
by this Certificate: %



<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,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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,  the Class M Certificates  and each Subclass
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  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
7.250% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-3 Certificates, as described in the Agreement.

      Distributions  on this  Certificate  will be made on behalf of the Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency  specified by the Trustee 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 Trustee or the Seller may require the Holder to deliver an opinion
of counsel  acceptable to and in form and substance  satisfactory to the Trustee
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  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 Trustee will also require (i) a representation letter, in the form
as described in the  Agreement,  stating either (a) that the transferee is not a
Plan and is not  acting on  behalf  of a Plan or using  the  assets of a Plan to
effect  such  purchase  or (b) subject to certain  conditions  described  in the
Agreement,  that the source of funds used to  purchase  this  Certificate  is an
"insurance company general account," or (ii) if such transferee is a Plan, or is
acting  on behalf of a Plan or using the  assets of a Plan,  (a) an  opinion  of
counsel acceptable to and in form and substance  satisfactory to the Trustee 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 October 30,  1997,  and based on its issue
price of 89.14203%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal  balance (plus five 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
225% SPA (as defined in the  Prospectus  Supplement  dated October 22, 1997 with
respect to the offering of the Class A-1, A-2,  Class A-3, Class A-4, Class A-5,
Class A-6, Class A-7, Class A-9, Class A-10,  Class A-11, Class A-12, Class A-R,
Class A-LR,  Class M, Class B-1 and Class B-2  Certificates)  used to price this
Certificate:  (i) the amount of OID as a  percentage  of the  initial  principal
balance of this Certificate is approximately 10.95866667%; (ii) the annual yield
to maturity of this Certificate, compounded monthly, is approximately 8.85%; and
(iii) the amount of OID allocable to the short first accrual period (October 30,
1997 to November 25, 1997) as a percentage of the initial  principal  balance of
this   Certificate,   calculated  using  the  exact  method,   is  approximately
0.04383251%.

      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 Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                    First Union National Bank,
                                      Trustee

                                    By----------------------------
                                         Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


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 M CERTIFICATES,  THE CLASS B-1 CERTIFICATES,  THE CLASS
B-2  CERTIFICATES AND THE CLASS B-3 CERTIFICATES AS DESCRIBED IN THE POOLING AND
SERVICING AGREEMENT REFERRED TO HEREIN.

THIS  CERTIFICATE  HAS NOT BEEN AND WILL NOT BE REGISTERED  UNDER THE SECURITIES
ACT OF 1933,  AS  AMENDED,  OR THE  SECURITIES  LAWS OF ANY STATE AND MAY NOT BE
RESOLD OR TRANSFERRED  UNLESS IT IS REGISTERED  PURSUANT TO SUCH ACT AND LAWS OR
IS SOLD OR TRANSFERRED IN TRANSACTIONS  WHICH ARE EXEMPT FROM REGISTRATION UNDER
SUCH ACT AND UNDER  APPLICABLE  STATE LAW AND IS TRANSFERRED IN ACCORDANCE  WITH
THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING  AGREEMENT  REFERRED
TO HEREIN.

EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE  POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN,  THIS  CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A  REPRESENTATION  LETTER  STATING  EITHER (A)
THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN  OR  OTHER  RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974,  AS AMENDED  ("ERISA"),  OR SECTION 4975 OF THE  INTERNAL  REVENUE CODE OF
1986, AS AMENDED (THE  "CODE").  OR A  GOVERNMENTAL  PLAN, AS DEFINED IN SECTION
3(32) OF  ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL  LAW  WHICH IS, TO A
MATERIAL  EXTENT,  SIMILAR  TO THE  FOREGOING  PROVISIONS  OF  ERISA OR THE CODE
(COLLECTIVELY, A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS
OF A PLAN OR (B)  SUBJECT TO CERTAIN  CONDITIONS  SET FORTH IN THE  POOLING  AND
SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS CERTIFICATE
IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>



                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-17, 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 OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                           First Distribution Date:  November 25, 1997

Percentage Interest evidenced        Denomination:  $
by this Certificate: %



<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,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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,  the Class M Certificates  and each Subclass
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  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
7.250% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-4 Certificates, as described in the Agreement.

      Distributions  on this  Certificate  will be made on behalf of the Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency  specified by the Trustee 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 Trustee or the Seller may require the Holder to deliver an opinion
of counsel  acceptable to and in form and substance  satisfactory to the Trustee
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  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 Trustee will also require (i) a representation letter, in the form
as described in the  Agreement,  stating either (a) that the transferee is not a
Plan and is not  acting on  behalf  of a Plan or using  the  assets of a Plan to
effect  such  purchase  or (b) subject to certain  conditions  described  in the
Agreement,  that the source of funds used to  purchase  this  Certificate  is an
"insurance company general account," or (ii) if such transferee is a Plan, or is
acting  on behalf of a Plan or using the  assets of a Plan,  (a) an  opinion  of
counsel acceptable to and in form and substance  satisfactory to the Trustee 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 October 30,  1997,  and based on its issue
price of 69.16603%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal  balance (plus five 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
225% SPA (as defined in the  Prospectus  Supplement  dated October 22, 1997 with
respect to the offering of the Class A-1, A-2,  Class A-3, Class A-4, Class A-5,
Class A-6, Class A-7, Class A-9, Class A-10,  Class A-11, Class A-12, Class A-R,
Class A-LR,  Class M, Class B-1 and Class B-2  Certificates)  used to price this
Certificate:  (i) the amount of OID as a  percentage  of the  initial  principal
balance of this Certificate is approximately 30.93466667%; (ii) the annual yield
to maturity of this Certificate,  compounded monthly,  is approximately  12.67%;
and (iii) the amount of OID allocable to the short first accrual period (October
30, 1997 to November 25, 1997) as a percentage of the initial  principal balance
of this  Certificate,  calculated  using  the  exact  method,  is  approximately
0.10466954%.

      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 Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                          First Union National Bank,
                                            Trustee

                                          By----------------------------
                                                 Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


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 M CERTIFICATES,  THE CLASS B-1 CERTIFICATES,  THE CLASS
B-2  CERTIFICATES,  THE CLASS B-3 CERTIFICATES AND THE CLASS B-4 CERTIFICATES AS
DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

THIS  CERTIFICATE  HAS NOT BEEN AND WILL NOT BE REGISTERED  UNDER THE SECURITIES
ACT OF 1933,  AS  AMENDED,  OR THE  SECURITIES  LAWS OF ANY STATE AND MAY NOT BE
RESOLD OR TRANSFERRED  UNLESS IT IS REGISTERED  PURSUANT TO SUCH ACT AND LAWS OR
IS SOLD OR TRANSFERRED IN TRANSACTIONS  WHICH ARE EXEMPT FROM REGISTRATION UNDER
SUCH ACT AND UNDER  APPLICABLE  STATE LAW AND IS TRANSFERRED IN ACCORDANCE  WITH
THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING  AGREEMENT  REFERRED
TO HEREIN.

EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE  POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN,  THIS  CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A  REPRESENTATION  LETTER  STATING  EITHER (A)
THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN  OR  OTHER  RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974,  AS AMENDED  ("ERISA"),  OR SECTION 4975 OF THE  INTERNAL  REVENUE CODE OF
1986, AS AMENDED (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN, AS DEFINED IN SECTION
3(32) OF  ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL  LAW  WHICH IS, TO A
MATERIAL  EXTENT,  SIMILAR  TO THE  FOREGOING  PROVISIONS  OF  ERISA OR THE CODE
(COLLECTIVELY, A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS
OF A PLAN OR (B)  SUBJECT TO CERTAIN  CONDITIONS  SET FORTH IN THE  POOLING  AND
SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS CERTIFICATE
IS AN "INSURANCE COMPANY GENERAL ACCOUNT."



<PAGE>



                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-17, 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 lans, 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 OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                           First Distribution Date:  November 25, 1997

Percentage Interest evidenced        Denomination:  $
by this Certificate: %





<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,  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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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,  the Class M Certificates  and each Subclass
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  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
7.250% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-5 Certificates, as described in the Agreement.

      Distributions  on this  Certificate  will be made on behalf of the Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, 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 Trustee 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 Trustee or the Seller may require the Holder to deliver an opinion
of counsel  acceptable to and in form and substance  satisfactory to the Trustee
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  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 Trustee will also require (i) a representation letter, in the form
as described in the  Agreement,  stating either (a) that the transferee is not a
Plan and is not  acting on  behalf  of a Plan or using  the  assets of a Plan to
effect  such  purchase  or (b) subject to certain  conditions  described  in the
Agreement,  that the source of funds used to  purchase  this  Certificate  is an
"insurance company general account," or (ii) if such transferee is a Plan, or is
acting  on behalf of a Plan or using the  assets of a Plan,  (a) an  opinion  of
counsel acceptable to and in form and substance  satisfactory to the Trustee 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 October 30,  1997,  and based on its issue
price of 33.83403%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal  balance (plus five 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
225% SPA (as defined in the  Prospectus  Supplement  dated October 22, 1997 with
respect to the offering of the Class A-1, A-2,  Class A-3, Class A-4, Class A-5,
Class A-6, Class A-7, Class A-9, Class A-10,  Class A-11, Class A-12, Class A-R,
Class A-LR,  Class M, Class B-1 and Class B-2  Certificates)  used to price this
Certificate:  (i) the amount of OID as a  percentage  of the  initial  principal
balance of this Certificate is approximately 66.26666667%; (ii) the annual yield
to maturity of this Certificate,  compounded monthly,  is approximately  26.98%;
and (iii) the amount of OID allocable to the short first accrual period (October
30, 1997 to November 25, 1997) as a percentage of the initial  principal balance
of this  Certificate,  calculated  using  the  exact  method,  is  approximately
0.12915336%.

      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 Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                         First Union National Bank,
                                           Trustee

                                          By----------------------------
                                                 Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


By ------------------------
   Authorized Officer


<PAGE>

                                    EXHIBIT C

                      [Form of Face of Class M Certificate]

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A CERTIFICATES
AS DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE  POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN,  THIS  CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A  REPRESENTATION  LETTER  STATING  EITHER (A)
THAT  THE  TRANSFEREE  IS NOT AN  EMPLOYEE  BENEFIT  PLAN  OR  OTHER  RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974,  AS AMENDED  ("ERISA"),  OR SECTION 4975 OF THE  INTERNAL  REVENUE CODE OF
1986, AS AMENDED (THE  "CODE"),  OR A  GOVERNMENTAL  PLAN, AS DEFINED IN SECTION
3(32) OF  ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL  LAW  WHICH IS, TO A
MATERIAL  EXTENT,  SIMILAR  TO THE  FOREGOING  PROVISIONS  OF  ERISA OR THE CODE
(COLLECTIVELY, A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS
OF A PLAN OR (B)  SUBJECT TO CERTAIN  CONDITIONS  SET FORTH IN THE  POOLING  AND
SERVICING AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS CERTIFICATE
IS AN "INSURANCE COMPANY GENERAL ACCOUNT."




<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1997-17, CLASS M


                    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 OR ANY OF THEIR AFFILIATES,  AND IS
NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   October 1, 1997

CUSIP No.:                           First Distribution Date:  November 25, 1997

Percentage Interest evidenced        Denomination:  $
by this Certificate: %





<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 M 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,
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 October 30, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  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 M
Distribution   Amount   required  to  be  distributed  to  Holders  of  Class  M
Certificates  on such  Distribution  Date,  subject  to  adjustment,  in certain
events, as specified in the Agreement.  The Class M Pass-Through Rate applicable
to each Distribution Date will be 7.250% per annum. The amount of interest which
accrues on this  Certificate  in any month will be  subject  to  reduction  with
respect to any  Non-Supported  Interest  Shortfall  and the interest  portion of
certain Realized Losses  allocated to the Class M 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 Trustee for that purpose in the notice
of final distribution.

      No transfer of a Class M Certificate will be made unless the Holder hereof
desiring  to  make  any  such  transfer  shall  deliver  to  the  Trustee  (i) a
representation letter, in the form as described in the Agreement, stating either
(a) that the  transferee  is not a Plan and is not acting on behalf of a Plan or
using the assets of a Plan to effect  such  purchase  or (b)  subject to certain
conditions described in the Agreement, that the source of funds used to purchase
this  Certificate  is an "insurance  company  general  account," or (ii) if such
transferee  is a Plan, or is acting on behalf of a Plan or using the assets of a
Plan,  (a) an  opinion  of  counsel  acceptable  to and in  form  and  substance
satisfactory  to the Trustee 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  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 Trustee, 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 Trustee has caused this  Certificate  to be duly
executed as of the date set forth below.


Dated:

                                          First Union National Bank,
                                            Trustee

                                          By----------------------------
                                                 Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


By -------------------------
   Authorized Officer


<PAGE>


                                    EXHIBIT D


                [Form of Reverse of Series 1997-17 Certificates]


                      NORWEST ASSET SECURITIES CORPORATION
                       MORTGAGE PASS-THROUGH CERTIFICATES
                                 SERIES 1997-17

      This Certificate is one of a duly authorized issue of Certificates  issued
in  several   Classes  and  Subclasses   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 Trustee,  such advances
are  reimbursable  to such Servicer,  the Master  Servicer or the Trustee 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
Trustee, as applicable,  of advances made by such Servicer,  the Master Servicer
or the Trustee.

      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  and  the  Trustee  and  the  rights  of the
Certificateholders  under the  Agreement  at any time by the Seller,  the Master
Servicer  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 or Subclass 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 Trustee,  duly endorsed by, or accompanied by
an assignment in the form below or other written  instrument of transfer in form
satisfactory to the Trustee 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 Subclass 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 Subclass 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 Trustee 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  Trustee  and  the  Certificate
Registrar,  and any agent of the Seller, the Master Servicer, 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 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 Trustee 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 or Subclass,  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 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 Trustee  (including its successors under
the Pooling and Servicing Agreement defined below, the "Trustee"), 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   T H A T

      WHEREAS,  the Seller,  the Master  Servicer and the Trustee,  have entered
into a Pooling and Servicing  Agreement dated as of October 30, 1997 relating to
the issuance of Mortgage Pass-Through Certificates, Series 1997-17 (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 Trustee 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  Trustee,  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  Trustee  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 Trustee  subsequent to the date hereof (the "Custodial  Files") as agent for
the  Trustee,  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 Trustee 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 Trustee.

      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 Trustee.

      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 Trustee.  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  Trustee,  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;  Trustee 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 Trustee 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 Trustee 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  Trustee may remove the  Custodian  at any time.  In such  event,  the
Trustee 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 Trustee
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 Trustee 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 Trustee  shall enter into any  amendment  hereof  except as permitted by the
Pooling and  Servicing  Agreement.  The Trustee  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 Trustee,  but only upon direction  accompanied by an Opinion of
Counsel to the effect that such recordation  materially and beneficially affects
the interests of the Certificateholders.

      For the purpose of  facilitating  the  recordation  of this  Agreement  as
herein  provided  and  for  other  purposes,  this  Agreement  may  be  executed
simultaneously in any number of counterparts,  each of which  counterparts shall
be deemed to be an original,  and such counterparts shall constitute but one and
the same instrument.

      Section  4.5.  Severability  of  Provisions.  If any  one or  more  of the
covenants,  agreements,  provisions or terms of this Agreement  shall be for any
reason whatsoever held invalid, then such covenants,  agreements,  provisions or
terms  shall be  deemed  severable  from the  remaining  covenants,  agreements,
provisions or terms of this Agreement and shall in no way affect the validity or
enforceability  of the other provisions of this Agreement or of the Certificates
or the rights of the holders thereof.



<PAGE>



      IN WITNESS WHEREOF,  this Agreement is executed as of the date first above
written.


Address:                                             FIRST UNION NATIONAL BANK

230 South Tryon Street                               By:
Charlotte, North Carolina,  28288                    Name:
                                                     Title:



Address:                                             NORWEST ASSET SECURITIES
                                                       CORPORATION
7485 New Horizon Way
Frederick, Maryland  21703                           By:
                                                     Name:
                                                     Title:



Address:                                             NORWEST BANK MINNESOTA,
                                                        NATIONAL ASSOCIATION
7485 New Horizon Way
Frederick, Maryland  21703                           By:
                                                     Name:
                                                     Title:


Address:                                             [CUSTODIAN]

                                                     By:
                                                     Name:
                                                     Title:





<PAGE>



STATE OF            )
                    :  ss.:
COUNTY OF           )

      On this ---- day of ---------, 19--, before me, a notary public in and for
the State of ------------, personally appeared ---------------, known to me who,
being   by  me  duly   sworn,   did   depose   and  say  that  he   resides   at
- --------------------------;   that  he  is  the ------------  of  Norwest  Asset
Securities Corporation a Delaware corporation,  one of the parties that executed
the  foregoing  instrument;  and that he signed his name thereto by order of the
Board of Directors of said corporation.



                                                             Notary Public



[NOTARIAL SEAL]



<PAGE>



STATE OF             )
                     :  ss.:
COUNTY OF            )

      On this ---- day of ---------, 19--, before me, a notary public in and for
the State of ------------, personally appeared ---------------, known to me who,
being   by  me  duly   sworn,   did   depose   and  say  that  he   resides   at
- --------------------------; that he is the ---------- of Norwest Bank Minnesota,
National  Association,  a national banking association,  one of the parties that
executed the foregoing instrument;  and that he signed his name thereto by order
of the Board of Directors of said corporation.



                                                               Notary Public



[NOTARIAL SEAL]



<PAGE>



STATE OF             )
                     :  ss.:
COUNTY OF            )

      On this --- day of --------,  19--,  before me, a notary public in and for
the State of ------------, personally appeared --------------------, known to me
who,  being  by  me  duly  sworn,   did  depose  and  say  that  he  resides  at
- --------------------------;  that he is the  -------------------- of First Union
National Bank, a national banking association,  one of the parties that executed
the  foregoing  instrument;  and that he signed his name thereto by order of the
Board of Directors of said association.



                                                        Notary Public




[NOTARIAL SEAL]





<PAGE>



STATE OF             )
                     :  ss.:
COUNTY OF            )

      On this ---- day of --------,  19 , before me, a notary  public in and for
the State of ----------,  personally appeared ---------------------, known to me
who,  being  by  me  duly  sworn,   did  depose  and  say  that  he  resides  at
- --------------------------;   that   he  is   the --------------------------- of
- ----------------------,  a  -------------------------,  one of the parties  that
executed the foregoing instrument;  and that he signed his name thereto by order
of the Board of Directors of said association.



                                                                Notary Public

 [NOTARIAL SEAL]


<PAGE>


                                   EXHIBIT F-1



            [Schedule of Mortgage Loans Serviced by Norwest Mortgage
                 from locations other than Frederick, Maryland]



                                     NASCOR
                           NMI / 1997-17 Exhibit F-1
                  20 & 30 YEAR FIXED RATE NON-RELOCATION LOANS


<TABLE>
<CAPTION>


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

<C>              <C>                         <C>    <C>       <C>      <C>         <C>       <C>               <C>         <C>   
6112955          BLAIR                       NE     68008     SFD      7.875       7.609     $1,690.14         360         1-Aug-27
6288002          FOLSOM                      CA     95630     SFD      8.500       8.234     $2,034.55         360         1-Jun-27
6289269          SAN JOSE                    CA     95138     SFD      8.000       7.734     $3,854.47         360         1-Sep-27
6291189          SAN JOSE                    CA     95138     PUD      7.750       7.484     $1,973.00         360         1-Sep-27
6291236          SAN JOSE                    CA     95138     SFD      7.125       6.859     $2,021.16         360         1-Aug-27
6294797          LOVELAND                    CO     80537     SFD      7.750       7.484     $2,471.62         360         1-Sep-27
6297430          RARITAN TOWNSHIP            NJ     08822     SFD      8.375       8.109     $2,093.24         360         1-Jul-27
6301745          MEMPHIS                     TN     38119     SFD      8.375       8.109     $1,854.58         360         1-Aug-27
6307823          PHOENIX                     AZ     85028     PUD      8.125       7.859     $1,787.56         360         1-Jun-27
6309620          FRESNO                      CA     93720     SFD      8.500       8.234     $2,044.54         360         1-Jul-27
6309903          ALPHARETTA                  GA     30202     SFD      8.125       7.859     $1,681.64         360         1-Aug-27
6311368          CAMPBELL                    CA     95008     SFD      8.000       7.734     $2,113.24         360         1-Aug-27
6312601          BENICIA                     CA     94510     SFD      7.875       7.609     $1,773.82         360         1-Sep-27
6316084          GROVELAND                   MA     01834     SFD      7.750       7.484     $1,633.42         360         1-Aug-27
6317201          EVERETT                     WA     98208     SFD      8.250       7.984     $1,712.51         360         1-Aug-27
6319704          SANDY                       UT     84092     SFD      7.750       7.484     $1,928.03         360         1-Sep-27
6320482          MOUNTAINSIDE                NJ     07092     SFD      8.000       7.734     $1,717.01         360         1-Aug-27
6322061          SANTA CLARA                 CA     95054     SFD      7.875       7.609     $1,735.82         360         1-Sep-27
6324288          SAN JOSE                    CA     95138     SFD      7.500       7.234     $1,664.83         360         1-Sep-27
6325669          AMES                        IA     50014     SFD      7.875       7.609     $1,827.17         360         1-Jun-27
6325704          BEDFORD                     NH     03110     SFD      8.125       7.859     $1,766.51         360         1-Sep-27
6329653          WEST CALDWELL               NJ     07006     SFD      8.500       8.234      $909.62          360         1-Aug-27
6333113          RENO                        NV     89511     SFD      8.125       7.859     $2,375.99         360         1-Aug-27
6336441          ARROYO GRANDE               CA     93420     SFD      8.250       7.984     $1,689.60         360         1-Sep-27
6337451          MINNETONKA                  MN     55391     SFD      7.875       7.609     $2,691.82         360         1-Aug-27
6337852          KINGWOOD                    TX     77345     SFD      7.875       7.609     $1,663.16         360         1-Sep-27
6338970          CHELMSFORD                  MA     01824     SFD      7.500       7.234     $1,608.19         360         1-Oct-27
6339729          SAN DIEGO                   CA     92130     SFD      8.250       7.984     $2,871.34         360         1-Aug-27
6340137          EL DORADO HILLS             CA     95762     SFD      8.375       8.109     $2,655.94         360         1-Sep-27
6340224          DENVER                      CO     80231     SFD      7.750       7.484     $1,960.10         360         1-Sep-27
6340378          SAN JOSE                    CA     95132     SFD      7.750       7.484     $2,328.34         360         1-Aug-27
6340597          CORONA                      CA     91719     SFD      8.250       7.984     $1,848.12         360         1-Jul-27
6341219          LAS FLORES AREA             CA     92688     PUD      7.750       7.484     $1,668.52         360         1-Sep-27
6341253          SAN JOSE                    CA     95138     SFD      7.500       7.234     $2,552.13         360         1-Aug-27
6342951          MORRIS TWP                  NJ     07960     SFD      8.500       8.234     $2,645.06         360         1-Sep-27
6344408          SAN MATEO                   CA     94401     HCO      7.750       7.484     $1,755.21         360         1-Aug-27
6344466          GLADWYNE                    PA     19035     SFD      7.875       7.609     $1,649.53         360         1-Aug-27
6345093          CASTLE ROCK                 CO     80104     SFD      7.500       7.234     $1,874.78         360         1-Jul-27
6349535          BLAINE                      MN     55449     SFD      8.125       7.859     $1,669.95         360         1-Aug-27
6349876          ROCHESTER                   MN     55902     SFD      7.875       7.609     $1,664.76         360         1-Aug-27
6350762          ST LOUIS PARK               MN     55416     SFD      8.125       7.859     $1,637.21         360         1-Aug-27
6352165          SANTA CRUZ                  CA     95060     SFD      7.875       7.609     $2,320.22         360         1-Sep-27
6353074          WESTFIELD                   NJ     07090     SFD      8.500       8.234     $1,778.50         360         1-Aug-27
6353348          VALENCIA                    CA     91354     SFD      8.000       7.734     $1,682.52         360         1-Sep-27
6353964          PARAMUS                     NJ     07652     SFD      7.500       7.234     $1,784.40         360         1-Aug-27
6355371          REDDING                     CT     06896     SFD      7.750       7.484     $1,611.93         360         1-Aug-27
6355460          DULUTH                      MN     55803     SFD      8.125       7.859     $1,663.19         360         1-Oct-27
6357229          WAYNE                       NJ     07470     SFD      8.500       8.234     $1,799.26         360         1-Aug-27
6358368          MADISON                     WI     53705     SFD      8.250       7.984     $1,953.29         360         1-Aug-27
6360563          CRANBURY                    NJ     08512     SFD      7.500       7.234     $1,633.37         360         1-Aug-27
6361445          CLARK                       NJ     07066     SFD      8.375       8.109      $912.09          360         1-Aug-27
6363928          PLYMOUTH                    MN     55446     SFD      7.625       7.359     $1,840.26         360         1-Aug-27
6366130          NEWBURYPORT                 MA     01950     SFD      8.750       8.484     $1,812.56         360         1-Jul-27
6366332          HAMILTON                    VA     20158     SFD      7.875       7.609     $1,625.61         360         1-Aug-27
6366565          SHREWSBURY                  MA     01545     SFD      8.000       7.734     $1,752.23         360         1-Aug-27
6366638          WOODINVILLE                 WA     98072     SFD      8.125       7.859     $1,685.47         360         1-Aug-27
6368015          SAN JOSE                    CA     95132     SFD      8.000       7.734     $1,680.32         360         1-Jul-27
6368148          BELLINGHAM                  WA     98226     SFD      7.750       7.484     $1,719.39         360         1-Aug-27
6369611          MEDFIELD                    MA     02052     SFD      7.625       7.359     $1,592.54         360         1-Aug-27
6370318          MEREDIAN                    ID     83642     PUD      8.125       7.859     $2,201.50         360         1-Aug-27
6370484          HANOVER                     MA     01923     SFD      8.250       7.984     $2,141.11         360         1-Aug-27
6371114          COLORADO SPRINGS            CO     80906     SFD      8.125       7.859     $2,413.12         360         1-Aug-27
6371494          ENGLEWOOD                   NJ     07631     SFD      8.250       7.984     $4,666.87         360         1-Sep-27
6372389          MIDDLETOWN TWP              NJ     07748     SFD      8.000       7.734     $1,761.04         360         1-Aug-27
6373306          OREGON CITY                 OR     97045     SFD      8.000       7.734     $1,907.79         360         1-Sep-27
6373712          BENICIA                     CA     94510     SFD      7.500       7.234     $1,734.05         360         1-Sep-27
6373749          BOISE                       ID     83703     SFD      7.875       7.609     $2,068.62         360         1-Aug-27
6374155          LONG BRANCH                 NJ     07740     SFD      8.375       8.109      $475.05          360         1-Sep-27
6375125          SHREWSBURY                  MA     01545     SFD      8.125       7.859     $2,472.52         360         1-Aug-27
6375434          SAN DIEGO                   CA     92107     SFD      7.500       7.234     $1,748.04         360         1-Sep-27
6376267          FOUNTAINVILLE               PA     18923     SFD      7.625       7.359     $1,663.32         360         1-Aug-27
6376314          WASHINGTON                  DC     20007     PUD      7.500       7.234     $2,120.02         360         1-Aug-27
6376543          MANDEVILLE                  LA     70471     SFD      7.500       7.234     $2,517.17         360         1-Sep-27
6376546          SAN JOSE                    CA     95138     SFD      7.625       7.359     $1,584.75         360         1-Sep-27
6376910          WASHINGTON                  VA     22747     SFD      8.000       7.734     $2,201.29         360         1-Sep-27
6377034          MONTCLAIR                   NJ     07042     SFD      8.250       7.984     $1,791.77         360         1-Oct-27
6378267          EXETER                      CA     93221     SFD      8.250       7.984     $2,434.10         360         1-Aug-27
6378503          BASALT                      CO     81621     SFD      7.875       7.609     $2,134.60         360         1-Sep-27
6379638          FAIRFAX STATION             VA     22039     SFD      7.875       7.609     $1,566.15         360         1-Aug-27
6380346          OCEAN CITY                  NJ     08226     LCO      8.000       7.734     $1,790.39         360         1-Jul-27
6380999          FAIRFAX STATION             VA     22039     SFD      7.625       7.359     $1,647.39         360         1-Aug-27
6381054          SAN DIEGO                   CA     92130     SFD      7.875       7.609     $2,047.96         360         1-Sep-27
6381173          SAN JOSE                    CA     95136     SFD      8.000       7.734     $1,816.07         360         1-Sep-27
6381355          WEST DES MOINES             IA     50265     SFD      8.000       7.734     $1,907.79         360         1-Aug-27
6382552          LYNNWOOD                    WA     98036     SFD      8.500       8.234     $1,750.47         360         1-Aug-27
6382688          EDISON                      NJ     08817     LCO      7.875       7.609      $543.80          360         1-Jul-27
6382955          DURANGO                     CO     81301     PUD      8.125       7.859     $1,663.19         360         1-Aug-27
6383732          ST HELENA                   CA     94574     SFD      8.250       7.984     $6,197.95         360         1-Sep-27
6384146          MONTCLAIR                   NJ     07042     SFD      7.500       7.234     $1,657.14         360         1-Sep-27
6385931          CAYUCOS                     CA     93430     SFD      8.500       8.234     $1,796.18         360         1-Aug-27
6386222          TUSTIN                      CA     92782     SFD      7.625       7.359     $3,121.41         360         1-Aug-27
6386880          GILBERT                     AZ     85234     SFD      7.875       7.609     $1,745.60         360         1-Sep-27
6386975          DEEPHAVEN                   MN     55331     SFD      8.250       7.984     $3,606.08         360         1-Aug-27
6387927          REDWOOD CITY                CA     94061     PUD      8.000       7.734     $2,439.77         360         1-Aug-27
6388379          YORK                        PA     17403     SFD      7.500       7.234     $2,097.64         360         1-Aug-27
6389188          BOULDER                     CO     80301     SFD      8.125       7.859     $1,825.53         360         1-Sep-27
6390132          CEDAREDGE                   CO     81413     SFD      8.125       7.859     $1,770.86         360         1-Sep-27
6390189          BENICIA                     CA     94510     SFD      7.750       7.484     $1,670.47         360         1-Sep-27
6390210          TUSTIN                      CA     92782     SFD      7.375       7.109     $2,490.57         360         1-Sep-27
6390583          BELL CANYON                 CA     91307     SFD      7.875       7.609     $2,175.21         360         1-Sep-27
6392086          FREELAND                    WA     98249     SFD      8.000       7.734     $2,142.59         360         1-Aug-27
6392169          SANTA CLARITA               CA     91355     SFD      7.625       7.359     $1,799.57         360         1-Aug-27
6393088          CAMARILLO                   CA     93012     SFD      8.250       7.984     $3,005.07         360         1-Aug-27
6393336          SAN DIEGO                   CA     92106     SFD      8.000       7.734     $3,301.94         360         1-Aug-27
6393926          PISMO BEACH                 CA     93449     SFD      8.250       7.984     $1,014.21         360         1-Sep-27
6394058          PARADISE VALLEY             AZ     85253     SFD      7.875       7.609     $1,993.94         360         1-Aug-27
6395787          NORTH OAKS                  MN     55127     PUD      7.500       7.234     $3,244.36         360         1-Aug-27
6397126          BEDFORD                     NH     03110     SFD      8.125       7.859     $1,722.59         360         1-Aug-27
6398277          BOTHELL                     WA     98011     SFD      8.000       7.734     $2,112.95         360         1-Aug-27
6398296          WESTERN SPRINGS             IL     60558     SFD      8.000       7.734     $2,582.85         360         1-Sep-27
6398832          SAN DIEGO                   CA     92130     SFD      8.000       7.734     $2,224.04         360         1-Aug-27
6398987          CLOSTER                     NJ     07624     SFD      8.375       8.109     $1,216.12         360         1-Aug-27
6399290          WOODBURY                    MN     55125     SFD      8.125       7.859     $2,851.19         360         1-Aug-27
6399306          BALLWIN                     MO     63011     SFD      8.000       7.734     $2,329.70         360         1-Aug-27
6399504          GEARHART                    OR     97138     SFD      8.125       7.859     $2,143.96         360         1-Aug-27
6399522          MOORESTOWN TWP              NJ     08057     SFD      8.250       7.984     $1,671.57         360         1-Sep-27
6399871          FREMONT                     CA     94536     SFD      7.750       7.484     $2,414.31         360         1-Aug-27
6399909          CENTREVILLE                 VA     20121     SFD      7.375       7.109     $1,790.23         360         1-Aug-27
6400382          SANTA CLARA                 CA     95051     PUD      7.375       7.109     $1,926.64         360         1-Aug-27
6400732          HIGHLANDS RANCH             CO     80126     SFD      7.875       7.609     $1,710.44         360         1-Aug-27
6401339          PASADENA                    CA     91105     SFD      7.625       7.359     $4,246.76         360         1-Sep-27
6401986          SAN JOSE                    CA     95133     SFD      8.250       7.984     $2,041.19         360         1-Sep-27
6402039          OCEAN CITY                  NJ     08226     SFD      7.375       7.109     $2,293.04         360         1-Sep-27
6402657          CAREFREE                    AZ     85377     SFD      7.750       7.484     $1,791.03         360         1-Aug-27
6402974          ALEXANDRIA                  VA     22307     SFD      7.500       7.234     $2,407.05         360         1-Aug-27
6403263          EDEN PRAIRIE                MN     55346     SFD      8.250       7.984     $2,163.65         360         1-Sep-27
6403313          SAN RAMON                   CA     94583     SFD      7.750       7.484     $1,755.73         360         1-Oct-27
6403466          BREMERTON                   WA     98312     SFD      8.000       7.734     $1,794.79         360         1-Sep-27
6403626          HOUSTON                     TX     77062     SFD      7.625       7.359     $1,777.98         360         1-Aug-27
6403981          ORANGE                      CA     92867     SFD      7.750       7.484     $2,579.08         360         1-Sep-27
6404605          PRINCETON                   NJ     08540     SFD      8.500       8.234     $1,738.51         360         1-Sep-27
6404964          RAMSEY                      NJ     07463     SFD      8.000       7.734     $1,878.44         360         1-Sep-27
6405308          CALABASAS                   CA     91302     SFD      7.500       7.234     $3,412.17         360         1-Sep-27
6405647          LIVERMORE                   CA     94550     SFD      7.750       7.484     $2,498.85         360         1-Aug-27
6405673          KINGSTON                    NH     03848     SFD      7.750       7.484     $1,879.87         360         1-Aug-27
6405854          INDIALANTIC                 FL     32903     SFD      8.000       7.734     $1,696.46         360         1-Aug-27
6406353          ROSWELL                     GA     30075     SFD      7.250       6.984     $1,500.79         360         1-Aug-27
6406743          WELLESLEY                   MA     02181     SFD      7.625       7.359     $2,548.06         360         1-Aug-27
6406802          LITTLETON                   CO     80122     PUD      7.750       7.484     $2,665.05         360         1-Aug-27
6408415          SANTA BARBARA               CA     93105     LCO      7.875       7.609     $1,693.76         360         1-Sep-27
6408452          SONOMA                      CA     95476     SFD      8.000       7.734     $1,907.79         360         1-Sep-27
6408673          MISSOURI CITY               TX     77459     SFD      7.750       7.484     $2,378.49         360         1-Sep-27
6408864          GILBERT                     AZ     85234     SFD      7.875       7.609     $1,827.17         360         1-Aug-27
6409210          PITTSFORD                   NY     14534     SFD      7.875       7.609     $1,617.99         360         1-Aug-27
6409832          PARK CITY                   UT     84060     LCO      7.875       7.609     $1,339.93         360         1-Sep-27
6409913          KERRVILLE                   TX     78028     SFD      7.875       7.609     $3,805.16         360         1-Sep-27
6409955          JENNER                      CA     95450     SFD      7.875       7.609     $2,392.73         360         1-Sep-27
6410373          SALT LAKE                   UT     84124     SFD      7.875       7.609     $1,827.17         360         1-Aug-27
6410421          WEST LINN                   OR     97068     SFD      8.000       7.734     $1,997.67         360         1-Aug-27
6410565          TENAFLY                     NJ     07670     SFD      8.000       7.734     $3,668.82         360         1-Sep-27
6411471          CAMPBELL                    CA     95008     SFD      7.375       7.109     $1,795.76         360         1-Aug-27
6412166          SAN JOSE                    CA     95112     SFD      7.500       7.234     $1,887.88         360         1-Sep-27
6412460          ELKINS PARK                 PA     19027     LCO      7.625       7.359      $480.59          360         1-Sep-27
6413086          LAFAYETTE                   CO     80026     SFD      8.000       7.734     $1,871.10         360         1-Aug-27
6413499          SCOTTSDALE                  AZ     85258     SFD      7.875       7.609     $1,087.60         360         1-Aug-27
6413739          SANTA CRUZ                  CA     95065     SFD      8.000       7.734     $1,966.49         360         1-Aug-27
6414210          OCEAN CITY                  NJ     08226     SFD      8.250       7.984     $2,404.05         360         1-Aug-27
6414297          KENSINGTON                  MD     20895     SFD      7.500       7.234     $1,691.23         360         1-Aug-27
6414354          NAPERVILLE                  IL     60564     SFD      7.625       7.359     $1,601.74         360         1-Sep-27
6415030          BOULDER                     CO     80304     PUD      7.625       7.359     $1,013.56         360         1-Aug-27
6415073          FLAGSTAFF                   AZ     86004     SFD      8.250       7.984      $657.36          360         1-Aug-27
6415128          DIAMOND BAR                 CA     91765     SFD      7.750       7.484     $2,568.34         360         1-Sep-27
6415433          BENICIA                     CA     94510     SFD      7.750       7.484     $1,829.01         360         1-Sep-27
6416524          CHICAGO                     IL     60641     SFD      8.125       7.859     $1,854.57         360         1-Aug-27
6416805          HESPERUS                    CO     81326     SFD      8.250       7.984     $1,521.31         360         1-Sep-27
6416889          STEAMBOAT SPRINGS           CO     80477     SFD      7.875       7.609     $1,798.17         360         1-Aug-27
6417492          NORTH POTOMAC               MD     20878     SFD      8.000       7.734     $1,660.07         360         1-Aug-27
6418633          PERRIS                      CA     92570     SFD      8.375       8.109     $2,280.22         360         1-Sep-27
6419034          DALLAS                      TX     75287     SFD      8.250       7.984     $2,764.66         360         1-Sep-27
6420077          VALENCIA                    CA     91354     PUD      7.625       7.359     $1,668.98         360         1-Aug-27
6421059          WINSLOW TOWNSHIP            NJ     08081     SFD      8.625       8.359      $521.12          360         1-Aug-27
6421450          WALNUT CREEK                CA     94596     SFD      8.000       7.734     $2,641.55         360         1-Aug-27
6421519          LEXINGTON                   MA     02173     SFD      7.500       7.234     $1,812.58         240         1-Aug-17
6421826          SCOTTSDALE                  AZ     85260     SFD      8.000       7.734     $2,788.31         360         1-Aug-27
6422635          PHOENIX                     AZ     85044     SFD      7.875       7.609     $1,972.19         360         1-Aug-27
6423167          VIENNA                      VA     22181     SFD      7.500       7.234     $1,913.05         360         1-Sep-27
6423387          WESTFIELD                   NJ     07090     SFD      8.000       7.734     $2,201.29         360         1-Aug-27
6423549          SAN JOSE                    CA     95132     SFD      8.250       7.984     $2,599.01         360         1-Sep-27
6424039          LOS ANGELES                 CA     91423     SFD      7.875       7.609     $2,719.01         360         1-Aug-27
6424508          CHINO HILLS                 CA     91709     SFD      7.875       7.609     $1,701.01         360         1-Aug-27
6424602          MONTVALE                    NJ     07645     SFD      7.875       7.609     $2,109.95         360         1-Sep-27
6425188          EDEN PRAIRIE                MN     55347     SFD      7.875       7.609     $2,175.21         360         1-Sep-27
6425434          SCOTTSDALE                  AZ     85259     PUD      7.875       7.609     $1,769.17         360         1-Sep-27
6425898          FRASER                      CO     80442     SFD      8.000       7.734     $1,849.09         360         1-Sep-27
6426396          ASPEN                       CO     81611     SFD      8.375       8.109      $621.74          360         1-Aug-27
6426483          LA VERNE                    CA     91750     SFD      8.000       7.734     $1,816.07         360         1-Sep-27
6426606          AZLE                        TX     76020     SFD      7.750       7.484     $1,973.72         360         1-Sep-27
6426834          CLEMMONS                    NC     27012     SFD      7.750       7.484     $1,564.64         360         1-Aug-27
6426884          NORTH OAKS                  MN     55127     SFD      7.750       7.484     $1,599.03         360         1-Sep-27
6426965          LA VERNE                    CA     91750     SFD      7.750       7.484     $2,507.44         360         1-Sep-27
6427078          BELL CANYON                 CA     91307     PUD      8.000       7.734     $2,916.71         360         1-Aug-27
6427647          WAYNE                       NJ     07470     SFD      7.875       7.609     $1,268.87         360         1-Sep-27
6427753          LAGUNA NIGUEL               CA     92677     PUD      8.000       7.734     $4,267.57         360         1-Sep-27
6428156          LOLO                        MT     59847     SFD      8.000       7.734     $1,907.79         360         1-Sep-27
6428173          SANTA CLARITA               CA     91354     SFD      8.375       8.109     $1,790.73         360         1-Aug-27
6428551          ROCHESTER                   MN     55902     SFD      7.875       7.609     $1,804.34         360         1-Sep-27
6428764          BETHESDA                    MD     20817     SFD      7.750       7.484     $1,799.63         360         1-Sep-27
6428963          SAN JOSE                    CA     95138     SFD      7.750       7.484     $3,137.17         360         1-Sep-27
6429263          HOUSTON                     TX     77006     PUD      7.625       7.359     $1,572.01         360         1-Aug-27
6429421          CORONA                      CA     91719     SFD      7.875       7.609     $1,709.35         360         1-Sep-27
6429806          BATTLE GROUND               WA     98604     SFD      7.500       7.234     $1,666.93         360         1-Aug-27
6439688          LINO LAKES                  MN     55038     SFD      7.875       7.609     $1,903.31         360         1-Aug-27
6455487          OAK PARK                    IL     60302     SFD      8.375       8.109     $1,787.12         360         1-Aug-27
6456252          PASADENA                    CA     91105     SFD      7.500       7.234     $2,447.25         360         1-Sep-27
6457723          EL CERRITO                  CA     94530     SFD      8.250       7.984     $2,065.98         360         1-Sep-27
6468646          PLAYA DEL REY               CA     90293     SFD      7.625       7.359     $2,229.55         360         1-Sep-27
6475182          HILLSBOROUGH                CA     94010     SFD      7.875       7.609     $7,250.69         360         1-Sep-27
6483527          WOODBURY                    MN     55125     SFD      8.125       7.859     $2,041.50         360         1-Sep-27
6496193          MOUNTAIN VIEW               CA     94040     SFD      7.875       7.609     $3,173.98         348         1-Oct-26
6992192          LEXINGTON                   MA     02173     SFD      8.375       8.109     $2,614.65         360         1-Aug-26
6992521          BURLINGAME                  CA     94010     SFD      8.375       8.109     $2,280.22         360         1-Sep-26
6993185          CORONADO                    CA     92118     SFD      8.250       7.984     $2,817.25         360         1-Nov-26
6993303          BLOOMINGTON                 MN     55438     PUD      8.250       7.984     $2,215.49         360         1-Oct-26
6993581          MOUNTAIN VILLAGE            CO     81435     SFD      8.625       8.359     $7,777.90         360         1-Nov-26
6993649          LAKE ARROWHEAD              CA     92352     SFD      8.250       7.984     $6,761.40         360         1-Nov-26
6994125          ISSAQUAH                    WA     98027     SFD      7.875       7.609      $906.34          360         1-Dec-26
6994185          MINNEAPOLIS                 MN     55416     LCO      7.875       7.609     $1,787.30         360         1-Dec-26
6994532          ENGLEWOOD                   CO     80110     SFD      7.875       7.609     $3,477.65         360         1-Dec-26
6995927          SACRAMENTO                  CA     95816     MF2      8.000       7.734     $2,696.58         360         1-Feb-27
6998129          KERRVILLE                   TX     78028     SFD      8.250       7.984     $2,079.04         240         1-May-17
6998441          LA JOLLA                    CA     92037     LCO      8.375       8.109     $4,940.47         360         1-May-27
6998578          REDMOND                     WA     98053     SFD      8.750       8.484     $1,453.82         360         1-Jun-27
6998954          ST JOSEPH                   MN     56374     SFD      8.250       7.984     $2,501.72         360         1-Jul-27
6998956          FOUNTAINVILLE               PA     18923     SFD      7.375       7.109     $2,249.53         360         1-Aug-27
6998957          CLINTON TWP                 MI     48038     SFD      7.500       7.234     $1,762.02         360         1-Sep-27
6998960          SAN JOSE                    CA     95138     SFD      8.000       7.734     $1,932.00         360         1-Aug-27
6998962          PARK CITY                   UT     84098     SFD      8.000       7.734     $2,304.02         360         1-Jul-27
6998963          SINKING SPRING              PA     19608     SFD      7.625       7.359     $1,860.08         360         1-Aug-27
6998964          LAFAYETTE                   CA     94549     SFD      8.375       8.109     $2,844.05         360         1-Oct-24
6998965          LOLO                        MT     59847     SFD      8.000       7.734     $2,028.86         360         1-Aug-27
6998967          DOVER TOWNSHIP              NJ     08753     SFD      8.000       7.734     $1,937.14         360         1-Aug-27
6998968          SAN JOSE                    CA     95138     SFD      7.250       6.984     $2,313.60         360         1-Sep-27
6998971          COLORADO SPRINGS            CO     80908     SFD      8.125       7.859     $1,791.65         360         1-Aug-27
6998973          PARKER                      CO     80134     SFD      7.875       7.609     $2,291.22         360         1-Sep-27
6998974          ALLENDALE                   NJ     07401     SFD      8.500       8.234     $2,213.86         360         1-Jul-27
6998976          CHERRY HILL                 NJ     08003     SFD      8.125       7.859     $1,856.24         360         1-Sep-27
6998978          HOMEDALE                    ID     83628     SFD      8.250       7.984     $2,005.13         360         1-Aug-27
6998981          CASTLE ROCK                 CO     80104     SFD      8.125       7.859     $1,673.96         360         1-Sep-27
6998988          ALTADENA                    CA     91001     SFD      8.000       7.734     $2,348.05         360         1-Jul-27
6998989          DANVERS                     MA     01923     SFD      8.000       7.734     $2,031.06         360         1-Aug-27
6998991          ACTON                       MA     01720     SFD      7.750       7.484     $1,824.70         360         1-Aug-27
6998995          VISALIA                     CA     93277     SFD      8.000       7.734     $2,509.47         360         1-Sep-27
6999000          PALMYRA                     VA     22963     SFD      6.625       6.359     $1,879.95         360         1-Sep-27
6999002          SAN FRANCISCO               CA     94127     LCO      7.500       7.234     $1,638.68         360         1-Aug-27
6999005          NEWBURYPORT                 MA     01950     SFD      8.000       7.734     $2,734.74         360         1-Aug-27
6999009          MINNETONKA                  MN     55345     SFD      7.750       7.484     $2,063.27         360         1-Aug-27
6999011          LAPORTE                     CO     80535     SFD      7.750       7.484     $1,708.64         360         1-Sep-27
6999017          COLORADO SPRINGS            CO     80904     PUD      7.875       7.609     $1,885.18         360         1-Aug-27
6999019          WESTERLY                    RI     02891     SFD      7.875       7.609     $1,848.93         360         1-Dec-26
6999020          ALEXANDRIA                  VA     22314     LCO      7.625       7.359     $6,440.92         360         1-Feb-27
6999021          WOODCLIFF LAKE              NJ     07675     SFD      8.250       7.984     $2,704.56         360         1-Feb-27
6999023          HEBER CITY                  UT     84032     SFD      8.750       8.484     $2,360.10         360         1-Apr-27
6999024          PARK CITY                   UT     84060     SFD      8.125       7.859     $2,283.18         360         1-Jul-27
6999029          EDEN PRAIRIE                MN     55347     SFD      7.500       7.234     $3,496.07         360         1-Aug-27
6999030          FAIRFIELD                   CT     06430     LCO      7.875       7.609     $2,577.44         360         1-Aug-27
6999031          CUMBERLAND                  RI     02864     SFD      7.750       7.484     $1,878.33         240         1-Aug-17
6999033          WALNUT                      CA     91789     SFD      7.875       7.609     $3,371.57         360         1-Aug-27
6999039          WAYLAND                     MA     01778     LCO      7.875       7.609     $2,278.75         360         1-Aug-27
6999046          SAN FRANCISCO               CA     94123     LCO      7.750       7.484     $4,388.02         360         1-Aug-27
6999048          SOUTHLAKE                   TX     76092     SFD      8.000       7.734     $2,201.29         360         1-Sep-27
6999050          OSPREY                      FL     34229     PUD      7.875       7.609     $2,537.74         360         1-Sep-27
6999051          PLYMOUTH                    MN     55441     SFD      8.000       7.734     $2,641.55         360         1-Jul-27
6999052          LANDENBERG                  PA     19350     SFD      8.125       7.859     $2,405.69         360         1-Sep-27
6999053          BERNARDS TWP                NJ     07920     SFD      7.875       7.609     $1,653.88         360         1-Sep-27
6999055          DURANGO                     CO     81301     PUD      8.375       8.109     $2,257.41         360         1-Sep-27
6999058          CARVER                      MA     02330     SFD      8.125       7.859     $1,804.27         360         1-Aug-27
6999059          HERNDON                     VA     20171     SFD      7.125       6.859     $3,202.81         360         1-Oct-27
6999062          MINNETONKA                  MN     55345     SFD      8.000       7.734     $2,922.64         360         1-Aug-27
6999066          WOODBURY                    MN     55125     SFD      8.000       7.734     $2,054.54         360         1-Apr-27
6999071          SAN JOSE                    CA     95138     SFD      7.625       7.359     $2,744.82         360         1-Sep-27
6999072          EXCELSIOR                   MN     55331     SFD      8.000       7.734     $1,937.14         360         1-Feb-27
6999074          BASALT                      CO     81621     SFD      7.750       7.484     $2,263.86         360         1-Aug-27
6999078          ARDSLEY                     NY     10502     SFD      7.625       7.359     $2,477.28         360         1-Aug-27
6999081          FT WASHINGTON               MD     20744     SFD      7.625       7.359     $1,981.82         360         1-Oct-27
6999082          DOYLESTOWN                  PA     18901     SFD      7.375       7.109     $1,933.89         360         1-Sep-27
6999083          MORGAN HILL                 CA     95037     SFD      7.875       7.609     $1,921.43         360         1-Aug-27
6999085          SAN JOSE                    CA     95138     SFD      7.750       7.484     $2,413.23         360         1-Sep-27
6999086          SAN JOSE                    CA     95138     SFD      7.750       7.484     $1,934.31         360         1-Aug-27
6999087          IJAMSVILLE                  MD     21754     SFD      7.750       7.484     $2,034.61         360         1-Aug-27
6999088          BOULDER                     CO     80304     SFD      7.500       7.234     $1,902.91         360         1-Aug-27
6999092          HUDSON                      OH     44236     SFD      8.000       7.734     $2,078.02         360         1-Sep-27
6999093          ARVADA                      CO     80005     SFD      7.875       7.609     $1,653.16         360         1-Sep-27
6999094          LAWRENCEVILLE               GA     30043     PUD      7.750       7.484     $1,573.24         360         1-Sep-27
6999095          FRASER                      CO     80442     SFD      8.000       7.734     $2,531.49         360         1-Sep-27
6999097          AUSTIN                      TX     78731     SFD      7.750       7.484     $2,316.88         360         1-Sep-27
6999098          FRANKTOWN                   CO     80116     SFD      7.875       7.609     $3,552.84         360         1-Sep-27
6999103          SAN DEIGO                   CA     92037     SFD      7.750       7.484     $2,528.94         360         1-Sep-27
6999107          WILD WOOD                   MO     63005     PUD      7.750       7.484     $1,791.03         360         1-Sep-27
6999114          RANCHO SANTA MARG           CA     92688     SFD      7.875       7.609     $1,696.30         360         1-Sep-27
6999121          STONY POINT                 NY     10980     SFD      7.750       7.484     $1,826.85         360         1-Oct-27
6999127          SOLOMONS                    MD     20688     SFD      7.500       7.234     $2,012.35         360         1-Sep-27
6999138          MONTVILLE                   NJ     07045     SFD      8.375       8.109     $2,850.27         360         1-Sep-27
6999139          RESTON                      VA     20194     SFD      7.625       7.359     $2,141.43         360         1-Sep-27

</TABLE>

COUNT:                                 293
WAC:                                     7.919414522
WAM:                                   356.6002327
WALTV:                                  76.70781746
<PAGE>
<TABLE>
<CAPTION>
                 CUT-OFF
MORTGAGE           DATE                                  MORTGAGE                   T.O.P.       MASTER
LOAN            PRINCIPAL                               INSURANCE     SERVICE      MORTGAGE      SERVICE
NUMBER           BALANCE         LTV         SUBSIDY       CODE         FEE          LOAN          FEE
- ------           -------         ---         -------       ----         ---          ----          ---

<S>             <C>             <C>         <C>             <C>        <C>          <C>           <C>  
6112955         $232,778.11     90.00                       13         0.250                      0.016
6288002         $263,951.95     90.00                       24         0.250                      0.016
6289269         $524,947.53     79.99                                  0.250                      0.016
6291189         $275,205.62     79.98                                  0.250                      0.016
6291236         $299,518.76     55.45                                  0.250                      0.016
6294797         $344,756.50     69.00                                  0.250                      0.016
6297430         $274,882.87     90.00                       33         0.250                      0.016
6301745         $243,695.62     80.00                                  0.250                      0.016
6307823         $240,113.65     75.00                                  0.250                      0.016
6309620         $265,357.99     94.96                       33         0.250                      0.016
6309903         $226,186.69     95.00                       24         0.250                      0.016
6311368         $287,612.23     80.00                                  0.250                      0.016
6312601         $244,473.64     80.00                                  0.250                      0.016
6316084         $227,677.12     80.00                                  0.250                      0.016
6317201         $227,507.27     95.00                       11         0.250                      0.016
6319704         $268,933.06     73.53                                  0.250                      0.016
6320482         $233,684.93     80.00                                  0.250                      0.016
6322061         $239,235.24     74.99                                  0.250                      0.016
6324288         $237,588.13     79.99                                  0.250                      0.016
6325669         $248,253.90     90.00                       17         0.250                      0.016
6325704         $237,759.37     89.78                       33         0.250                      0.016
6329653         $118,156.17     70.00                                  0.250                      0.016
6333113         $319,579.94     52.63                                  0.250                      0.016
6336441         $224,756.59     90.00                       17         0.250                      0.016
6337451         $370,737.34     90.00                       33         0.250                      0.016
6337852         $229,222.15     80.00                                  0.250                      0.016
6338970         $230,000.00     69.70                                  0.250                      0.016
6339729         $381,710.90     90.00                       13         0.250                      0.016
6340137         $349,214.80     80.00                                  0.250                      0.016
6340224         $273,406.90     80.00                                  0.250                      0.016
6340378         $324,539.76     77.44                                  0.250                      0.016
6340597         $245,526.15     90.00                       33         0.250                      0.016
6341219         $232,735.63     95.00                       13         0.250                      0.016
6341253         $364,456.55     63.01        FX 9YR                    0.250                      0.016
6342951         $343,791.61     80.00                                  0.250                      0.016
6344408         $244,653.04     39.84                                  0.250                      0.016
6344466         $227,185.85     70.00                                  0.250                      0.016
6345093         $267,525.28     79.41                                  0.250                      0.016
6349535         $224,614.76     90.00                       12         0.250                      0.016
6349876         $228,921.73     80.00                                  0.250                      0.016
6350762         $220,109.86     90.00                       33         0.250                      0.016
6352165         $319,779.78     53.78                                  0.250                      0.016
6353074         $231,018.75     90.00                       06         0.250                      0.016
6353348         $229,146.15     89.99                       06         0.250                      0.016
6353964         $254,820.02     80.00                                  0.250                      0.016
6355371         $224,681.36     78.95                                  0.250                      0.016
6355460         $224,000.00     80.00                                  0.250                      0.016
6357229         $233,715.48     90.00                       33         0.250                      0.016
6358368         $259,667.28     80.00                                  0.250                      0.016
6360563         $233,252.18     80.00                                  0.250                      0.016
6361445         $119,850.30     68.57                                  0.250                      0.016
6363928         $259,622.45     80.00                                  0.250                      0.016
6366130         $229,944.63     90.00                       17         0.250                      0.016
6366332         $223,890.39     95.00                       33         0.250                      0.016
6366565         $238,425.55     80.00                                  0.250                      0.016
6366638         $226,702.01     69.98                                  0.250                      0.016
6368015         $228,535.96     76.59                                  0.250                      0.016
6368148         $239,660.13     80.00                                  0.250                      0.016
6369611         $224,673.26     52.94                                  0.250                      0.016
6370318         $296,040.43     89.98                       12         0.250                      0.016
6370484         $284,635.29     95.00                       12         0.250                      0.016
6371114         $324,573.36     64.10                                  0.250                      0.016
6371494         $620,803.88     69.99                                  0.250                      0.016
6372389         $239,676.85     75.00                                  0.250                      0.016
6373306         $259,825.54     80.00                                  0.250                      0.016
6373712         $247,815.95     79.78                                  0.250                      0.016
6373749         $284,504.72     79.93                                  0.250                      0.016
6374155         $61,849.19      66.49                                  0.250                      0.016
6375125         $332,562.86     90.00                       17         0.250                      0.016
6375434         $249,814.46     65.45                                  0.250                      0.016
6376267         $234,658.74     64.38                                  0.250                      0.016
6376314         $302,745.99     80.00                                  0.250                      0.016
6376543         $359,732.83     88.89                       06         0.250                      0.016
6376546         $223,737.95     79.99                                  0.250                      0.016
6376910         $299,798.71     37.50                                  0.250                      0.016
6377034         $238,500.00     90.00                       06         0.250                      0.016
6378267         $323,585.38     90.00                       17         0.250                      0.016
6378503         $294,197.40     80.00                                  0.250                      0.016
6379638         $215,701.72     80.00                                  0.250                      0.016
6380346         $243,505.56     80.00                                  0.250                      0.016
6380999         $232,412.01     95.00                       12         0.250                      0.016
6381054         $282,255.62     89.98                       11         0.250                      0.016
6381173         $247,333.93     75.00                                  0.250                      0.016
6381355         $259,649.92     43.33                                  0.250                      0.016
6382552         $227,378.20     90.00                       06         0.250                      0.016
6382688         $74,816.60      45.18                                  0.250                      0.016
6382955         $223,705.96     80.00                                  0.250                      0.016
6383732         $824,473.93     75.00                                  0.250                      0.016
6384146         $236,824.11     74.76                                  0.250                      0.016
6385931         $233,315.97     80.00                                  0.250                      0.016
6386222         $440,364.59     88.52                                  0.250                      0.016
6386880         $240,584.32     90.00                       16         0.250                      0.016
6386975         $479,385.74     80.00                                  0.250                      0.016
6387927         $332,052.31     70.00                                  0.250                      0.016
6388379         $299,553.33     61.22                                  0.250                      0.016
6389188         $245,703.17     90.00                       33         0.250                      0.016
6390132         $238,343.98     90.00                       33         0.250                      0.016
6390189         $232,997.43     80.00                                  0.250                      0.016
6390210         $360,325.62     79.99                                  0.250                      0.016
6390583         $299,768.75     37.97                                  0.250                      0.016
6392086         $291,004.85     80.00                                  0.250                      0.016
6392169         $253,880.79     90.00                       17         0.250                      0.016
6393088         $399,488.11     78.13                                  0.250                      0.016
6393336         $449,394.11     80.00                                  0.250                      0.016
6393926         $134,913.92     42.19                                  0.250                      0.016
6394058         $274,620.26     82.09                       33         0.250                      0.016
6395787         $463,309.13     80.00                                  0.250                      0.016
6397126         $231,695.46     80.00                                  0.250                      0.016
6398277         $287,370.94     80.00                                  0.250                      0.016
6398296         $351,763.82     80.00                                  0.250                      0.016
6398832         $302,691.90     79.99                                  0.250                      0.016
6398987         $159,800.40     80.00                                  0.250                      0.016
6399290         $383,495.92     80.00                                  0.250                      0.016
6399306         $317,072.52     67.91                                  0.250                      0.016
6399504         $288,370.96     75.00                                  0.250                      0.016
6399522         $222,358.12     68.99                                  0.250                      0.016
6399871         $336,522.35     80.00                                  0.250                      0.016
6399909         $258,804.33     80.00                                  0.250                      0.016
6400382         $278,524.18     89.98                       17         0.250                      0.016
6400732         $235,574.24     79.00                                  0.250                      0.016
6401339         $599,565.74     58.25                                  0.250                      0.016
6401986         $271,526.75     95.00                       17         0.250                      0.016
6402039         $331,747.38     80.00                                  0.250                      0.016
6402657         $249,645.96     68.12                                  0.250                      0.016
6402974         $343,737.43     90.00                       33         0.250                      0.016
6403263         $287,816.35     90.00                       16         0.250                      0.016
6403313         $245,072.00     80.00                                  0.250                      0.016
6403466         $244,435.88     94.99                       06         0.250                      0.016
6403626         $250,835.22     80.00                                  0.250                      0.016
6403981         $359,745.92     64.29                                  0.250                      0.016
6404605         $225,934.82     95.00                       06         0.250                      0.016
6404964         $255,828.23     80.00                                  0.250                      0.016
6405308         $487,637.83     86.31                                  0.250                      0.016
6405647         $348,306.05     80.00                                  0.250                      0.016
6405673         $262,028.40     80.00                                  0.250                      0.016
6405854         $230,286.71     80.00                                  0.250                      0.016
6406353         $219,655.72     90.53                       24         0.250                      0.016
6406743         $356,795.15     80.00                                  0.250                      0.016
6406802         $371,473.20     80.00                                  0.250                      0.016
6408415         $233,439.24     80.00                                  0.250                      0.016
6408452         $259,825.54     89.04                       17         0.250                      0.016
6408673         $331,765.68     80.00                                  0.250                      0.016
6408864         $251,652.02     80.00                                  0.250                      0.016
6409210         $222,841.85     95.00                       17         0.250                      0.016
6409832         $184,672.82     80.00                                  0.250                      0.016
6409913         $524,122.66     74.97                                  0.250                      0.016
6409955         $329,772.90     36.67                                  0.250                      0.016
6410373         $251,652.02     80.00                                  0.250                      0.016
6410421         $271,883.44     75.00                                  0.250                      0.016
6410565         $499,664.51     55.56                                  0.250                      0.016
6411471         $259,303.10     76.36                                  0.250                      0.016
6412166         $269,799.62     60.00                                  0.250                      0.016
6412460         $67,850.86      70.00                                  0.250                      0.016
6413086         $254,656.66     79.94                                  0.250                      0.016
6413499         $149,792.88     60.61                                  0.250                      0.016
6413739         $267,639.16     47.18                                  0.250                      0.016
6414210         $319,590.50     80.00                                  0.250                      0.016
6414297         $241,514.86     75.00                                  0.250                      0.016
6414354         $226,136.21     82.29                                  0.250                      0.016
6415030         $142,992.06     80.00                                  0.250                      0.016
6415073         $87,388.02      50.00                                  0.250                      0.016
6415128         $358,246.97     84.95                       17         0.250                      0.016
6415433         $255,120.81     80.00                                  0.250                      0.016
6416524         $249,447.12     67.51                                  0.250                      0.016
6416805         $202,370.88     52.60                                  0.250                      0.016
6416889         $247,657.54     80.00                                  0.250                      0.016
6417492         $225,935.38     80.00                                  0.250                      0.016
6418633         $299,813.53     66.67                                  0.250                      0.016
6419034         $367,765.34     80.00                                  0.250                      0.016
6420077         $235,457.58     90.00                       13         0.250                      0.016
6421059         $66,714.41      67.68                                  0.250                      0.016
6421450         $358,796.00     79.12                                  0.250                      0.016
6421519         $224,184.80     71.88                                  0.250                      0.016
6421826         $379,488.34     80.00                                  0.250                      0.016
6422635         $271,624.39     80.00                                  0.250                      0.016
6423167         $273,396.95     95.00                       16         0.250                      0.016
6423387         $299,219.14     72.29                                  0.250                      0.016
6423549         $345,729.40     79.99                                  0.250                      0.016
6424039         $374,482.16     79.79                                  0.250                      0.016
6424508         $234,276.04     94.98                       33         0.250                      0.016
6424602         $290,799.74     60.00                                  0.250                      0.016
6425188         $299,793.54     55.66                                  0.250                      0.016
6425434         $243,832.08     80.00                                  0.250                      0.016
6425898         $251,830.91     80.00                                  0.250                      0.016
6426396         $81,697.96      8.18                                   0.250                      0.016
6426483         $247,333.93     82.50                       17         0.250                      0.016
6426606         $275,305.55     95.00                       33         0.250                      0.016
6426834         $216,534.27     80.00                                  0.250                      0.016
6426884         $223,042.47     80.00                                  0.250                      0.016
6426965         $349,752.98     68.03                                  0.250                      0.016
6427078         $396,880.96     66.25                                  0.250                      0.016
6427647         $174,879.57     69.58                                  0.250                      0.016
6427753         $581,209.76     80.00                                  0.250                      0.016
6428156         $259,825.54     80.00                                  0.250                      0.016
6428173         $235,306.10     95.00                       33         0.250                      0.016
6428551         $248,678.74     90.00                       16         0.250                      0.016
6428764         $251,022.70     80.00                                  0.250                      0.016
6428963         $437,590.93     79.99                                  0.250                      0.016
6429263         $221,777.48     79.99                                  0.250                      0.016
6429421         $235,587.76     89.98                       17         0.250                      0.016
6429806         $238,045.03     90.00                       17         0.250                      0.016
6439688         $262,137.51     80.00                                  0.250                      0.016
6455487         $234,831.70     95.00                       01         0.250                      0.016
6456252         $349,740.25     53.85                                  0.250                      0.016
6457723         $274,824.65     51.89                                  0.250                      0.016
6468646         $314,772.01     54.78                                  0.250                      0.016
6475182         $999,311.81     49.02                                  0.250                      0.016
6483527         $274,770.14     79.93                                  0.250                      0.016
6496193         $434,000.00     64.30                                  0.250                      0.016
6992192         $340,866.90     80.00                                  0.250                      0.016
6992521         $297,471.74     58.25                                  0.250                      0.016
6993185         $372,277.33     63.03                                  0.250                      0.016
6993303         $292,556.05     79.92                                  0.250                      0.016
6993581         $784,485.65     50.76                                  0.250                      0.016
6993649         $893,465.55     69.23                                  0.250                      0.016
6994125         $124,113.87     59.52                                  0.250                      0.016
6994185         $244,657.28     68.47                                  0.250                      0.016
6994532         $476,230.03     80.00                                  0.250                      0.016
6995927         $365,480.72     89.99                       33         0.250                      0.016
6998129         $241,964.50     78.71                                  0.250                      0.016
6998441         $647,951.55     59.63                                  0.250                      0.016
6998578         $184,370.04     70.00                                  0.250                      0.016
6998954         $332,358.59     90.00                       12         0.250                      0.016
6998956         $324,445.51     89.98                       33         0.250                      0.016
6998957         $251,812.98     70.00                                  0.250                      0.016
6998960         $262,945.49     79.98                                  0.250                      0.016
6998962         $313,363.71     73.88                                  0.250                      0.016
6998963         $262,418.39     90.00                       33         0.250                      0.016
6998964         $364,700.71     90.00                       11         0.250                      0.016
6998965         $276,127.71     79.91                                  0.250                      0.016
6998967         $263,644.54     75.00                                  0.250                      0.016
6998968         $338,885.43     69.43                                  0.250                      0.016
6998971         $240,983.23     95.00                       24         0.250                      0.016
6998973         $315,782.53     80.00                                  0.250                      0.016
6998974         $287,255.90     80.00                                  0.250                      0.016
6998976         $249,836.47     89.37                       17         0.250                      0.016
6998978         $266,558.45     79.99                                  0.250                      0.016
6998981         $225,302.52     89.75                       24         0.250                      0.016
6998988         $319,351.54     76.19                                  0.250                      0.016
6998989         $276,427.31     80.00                                  0.250                      0.016
6998991         $254,339.32     90.00                       11         0.250                      0.016
6998995         $341,770.53     90.00                       17         0.250                      0.016
6999000         $293,340.97     80.00                                  0.250                      0.016
6999002         $234,011.05     80.00                                  0.250                      0.016
6999005         $372,198.19     80.00                                  0.250                      0.016
6999009         $287,491.50     80.00                                  0.250                      0.016
6999011         $238,331.67     71.30                                  0.250                      0.016
6999017         $259,640.97     77.61                                  0.250                      0.016
6999019         $253,192.35     89.47                       33         0.250                      0.016
6999020         $904,612.30     65.00                                  0.250                      0.016
6999021         $358,118.71     77.42                                  0.250                      0.016
6999023         $298,945.33     78.95                                  0.250                      0.016
6999024         $306,892.46     75.00                                  0.250                      0.016
6999029         $499,255.54     66.67                                  0.250                      0.016
6999030         $354,984.12     90.00                       06         0.250                      0.016
6999031         $227,996.09     80.00                                  0.250                      0.016
6999033         $464,357.88     75.61                                  0.250                      0.016
6999039         $313,846.00     70.00                                  0.250                      0.016
6999046         $611,632.63     70.00                                  0.250                      0.016
6999048         $299,798.71     80.00                                  0.250                      0.016
6999050         $349,759.14     70.85                                  0.250                      0.016
6999051         $359,160.12     90.00                       24         0.250                      0.016
6999052         $323,788.06     90.00                       13         0.250                      0.016
6999053         $227,943.03     69.99                                  0.250                      0.016
6999055         $296,653.93     90.00                       24         0.250                      0.016
6999058         $242,480.33     90.00                       17         0.250                      0.016
6999059         $475,393.00     80.00                                  0.250                      0.016
6999062         $397,771.72     90.00                       33         0.250                      0.016
6999066         $278,853.80     78.20                                  0.250                      0.016
6999071         387519.33       79.99                                  0.250                      0.016
6999072         $261,372.41     68.57                                  0.250                      0.016
6999074         $315,552.50     80.00                                  0.250                      0.016
6999078         $349,491.75     68.75                                  0.250                      0.016
6999081         $280,000.00     78.68                                  0.250                      0.016
6999082         $279,786.94     78.50                                  0.250                      0.016
6999083         $264,634.07     72.43                                  0.250                      0.016
6999085         $336,612.26     79.99                                  0.250                      0.016
6999086         $269,617.65     58.42                                  0.250                      0.016
6999087         $283,597.82     87.66                       33         0.250                      0.016
6999088         $271,744.80     56.23                                  0.250                      0.016
6999092         $283,009.98     79.77                                  0.250                      0.016
6999093         $227,843.09     80.00                                  0.250                      0.016
6999094         $219,445.01     90.00                       06         0.250                      0.016
6999095         $344,768.51     70.41                                  0.250                      0.016
6999097         $323,171.74     80.00                                  0.250                      0.016
6999098         $489,662.79     70.00                                  0.250                      0.016
6999103         $352,750.85     76.74                                  0.250                      0.016
6999107         $249,823.55     53.27                                  0.250                      0.016
6999114         $233,789.00     95.00                       17         0.250                      0.016
6999121         $255,000.00     62.65                                  0.250                      0.016
6999127         $287,587.41     78.77                                  0.250                      0.016
6999138         $374,766.92     66.96                                  0.250                      0.016
6999139         $302,331.02     79.99                                  0.250                      0.016
</TABLE>

<PAGE>





                                   EXHIBIT F-2



            [Schedule of Mortgage Loans Serviced by Norwest Mortgage
                             in Frederick, Maryland]

                                     NASCOR
                           NMI / 1997-17 Exhibit F-2
                  20 & 30 YEAR FIXED RATE NON-RELOCATION LOANS


<TABLE>
<CAPTION>


                                                                                     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>      
3585487   PALM BEACH GARDENS          FL       33418        SFD        8.875        8.609           $1,400.34  360       1-Sep-26
4488040   CAPE CORAL                  FL       33914        SFD        8.625        8.359           $1,941.36  360       1-Sep-26
4509818   SARASOTA                    FL       34242        HCO        8.125        7.859           $1,704.77  360       1-May-26
4532267   NORTH FALMOUTH              MA       02540        SFD        7.625        7.359           $1,939.36  360       1-Aug-27
4534661   STATEN ISLAND               NY       10314        THS        9.500        9.234           $1,109.93  360       1-Oct-26
4536069   VOORHEES                    NJ       08043        SFD        9.000        8.734           $1,996.27  360       1-Aug-26
4540376   GONZALES                    LA       70737        SFD        8.375        8.109           $2,667.86  360       1-Jul-27
4545452   MIDDLEBURG                  VA       22118        SFD        8.375        8.109           $6,960.75  360       1-Jul-27
4552821   LINDON                      UT       84042        SFD        8.000        7.734           $1,995.84  360       1-Sep-27
4553140   PARKER                      CO       80134        SFD        7.875        7.609           $2,574.73  360       1-Aug-27
4557854   SAN ANTONIO                 TX       78239        SFD        8.500        8.234             $374.85  360       1-Dec-26
4557931   DUNBARTON                   NH       03045        SFD        7.750        7.484           $2,666.13  352       1-Dec-26
4564300   AUSTIN                      TX       78733        SFD        8.000        7.734           $2,103.71  360       1-Oct-27
4565624   GEORGETOWN                  SC       29440        SFD        8.250        7.984           $2,843.17  360       1-Feb-27
4569730   LITTLETON                   CO       80123        SFD        8.000        7.734           $1,772.41  360       1-Jun-27
4569751   DELAWARE                    OH       43015        SFD        7.875        7.609           $1,310.93  360       1-Aug-27
4570407   CORTLANDT MANOR             NY       10566        SFD        8.250        7.984           $2,103.55  360       1-Jan-27
4571431   TELLURIDE                   CO       81435        SFD        8.375        8.109           $7,600.72  360       1-Sep-27
4575909   PETALUMA                    CA       94952        SFD        8.375        8.109           $2,211.18  355       1-Mar-27
4576353   TORRANCE                    CA       90503        SFD        7.625        7.359           $1,769.49  360       1-Sep-27
4577528   SKIPPACK                    PA       19474        SFD        7.750        7.484           $1,695.75  360       1-Sep-27
4577824   ATLANTA                     GA       30305        SFD        7.750        7.484           $3,582.06  360       1-Sep-27
4578129   OWINGS MILL                 MD       21117        SFD        8.000        7.734           $1,761.04  360       1-Jul-27
4579140   FLORHAM PARK                NJ       07932        SFD        8.375        8.109           $1,981.13  360       1-Oct-27
4580457   ISLANDIA                    NY       11722        SFD        8.875        8.609             $994.56  360       1-Jun-27
4581715   SOUTHLAKE                   TX       76092        SFD        8.125        7.859           $3,415.49  360       1-Jun-27
4582593   BASKING RIDGE               NJ       07920        SFD        7.875        7.609           $2,436.24  360       1-Oct-27
4583539   IRVINE                      CA       92720        SFD        8.000        7.734           $2,201.30  360       1-Jul-27
4583582   OMAHA                       NE       68007        SFD        8.125        7.859           $2,144.70  360       1-Sep-27
4584794   VIRGINIA BEACH              VA       23456        SFD        7.625        7.359           $1,696.94  360       1-Sep-27
4586337   POTOMAC                     MD       20854        SFD        7.875        7.609           $2,537.74  360       1-Sep-27
4589378   RIDGEFIELD                  CT       06877        SFD        7.875        7.609           $1,667.66  360       1-Jun-27
4589599   EL PASO                     TX       79912        SFD        8.375        8.109           $1,976.19  360       1-Jun-27
4590418   ASHBURN                     VA       20147        SFD        8.000        7.734           $1,692.79  360       1-May-27
4591101   STAMFORD                    CT       06902        SFD        8.500        8.234           $3,561.99  360       1-Jul-27
4591686   JAMAICA                     NY       11423        SFD        8.375        8.109           $2,065.88  360       1-Aug-27
4591878   NASHUA                      NH       03063        SFD        7.625        7.359           $1,608.11  360       1-Sep-27
4592665   CARMEL                      CA       93923        SFD        7.875        7.609           $2,066.45  360       1-Oct-27
4594848   GLEN ROCK                   NJ       07452        SFD        8.500        8.234           $2,179.87  360       1-Sep-27
4594939   AURORA                      CO       80015        SFD        8.250        7.984           $1,768.86  360       1-Sep-27
4595636   SOUTH SAN FRANCISCO         CA       94080        PUD        7.875        7.609           $2,610.25  360       1-Oct-27
4597057   MANCHESTER                  MA       01944        SFD        7.875        7.609           $2,864.03  360       1-Sep-27
4597971   HELLERTOWN                  PA       18055        SFD        7.875        7.609           $1,754.67  360       1-Oct-27
4599148   LOS ANGELES                 CA       90046        SFD        7.625        7.359           $2,032.79  360       1-Sep-27
4599206   CHATHAM TOWNSHIP            NJ       07928        SFD        8.250        7.984           $1,802.11  360       1-Sep-27
4599240   ATLANTA                     GA       30327        SFD        8.000        7.734           $2,304.03  360       1-Jun-27
4599364   JERICHO                     NY       11753        SFD        8.000        7.734           $2,377.40  360       1-Sep-27
4599561   NORTH MASSAPEQUA            NY       11758        SFD        8.125        7.859           $1,098.90  360       1-Sep-27
4599585   SYOSSET                     NY       11791        SFD        7.875        7.609           $3,016.29  360       1-Aug-27
4600278   ROUND ROCK                  TX       78681        SFD        8.125        7.859           $2,079.00  360       1-Jun-27
4600745   BERNANDS TOWNSHIP           NJ       07920        SFD        8.000        7.734             $876.12  360       1-Jun-27
4601129   WEST GOSHEN TOWNSHIP        PA       19380        SFD        7.250        6.984           $1,850.07  360       1-Sep-27
4601304   SOUTH KINGSTOWN             RI       02881        SFD        8.500        8.234             $853.49  360       1-Jul-27
4601378   STONYBROOK                  NY       11790        SFD        8.250        7.984           $1,878.17  360       1-Sep-27
4601392   TEANECK                     NJ       07666        SFD        8.125        7.859           $1,750.81  360       1-Sep-27
4601728   WILDWOOD                    MO       63011        SFD        8.250        7.984           $1,805.29  360       1-Jun-27
4602114   BAY HEAD                    NJ       08742        SFD        7.875        7.609           $2,650.86  360       1-Oct-27
4602680   CARMEL                      IN       46033        SFD        8.250        7.984           $2,328.93  360       1-Jul-27
4604217   READINGTON TOWNSHIP         NJ       08889        SFD        8.250        7.984           $1,798.54  360       1-Sep-27
4604458   TROY HILLS                  NJ       07950        SFD        8.000        7.734           $1,665.65  360       1-Sep-27
4604496   WARREN TOWNSHIP             NJ       07059        SFD        8.000        7.734           $2,905.71  360       1-Sep-27
4604574   LIVINGSTON TOWNSHIP         NJ       07039        SFD        7.625        7.359           $2,123.39  360       1-Sep-27
4605018   GREENSBORO                  GA       30642        SFD        8.250        7.984           $2,629.44  360       1-Jul-27
4605383   STAMFORD                    CT       06907        SFD        7.875        7.609           $2,204.22  360       1-Oct-27
4605433   GLENDALE                    CA       91206        SFD        8.625        8.359           $2,706.71  360       1-Jun-27
4605677   MYRTLE BEACH                SC       29575        SFD        8.375        8.109           $1,747.41  360       1-Jul-27
4606028   SPRINGFIELD                 VA       22150        SFD        8.750        8.484           $2,264.92  360       1-Jul-27
4606049   SAN DIEGO                   CA       92128        LCO        8.000        7.734             $786.60  360       1-Jun-27
4606263   TEWKSBURY TOWNSHIP          NJ       07830        SFD        7.875        7.609           $2,559.50  360       1-Aug-27
4607238   AMAGANSETT                  NY       11930        SFD        8.625        8.359           $1,151.13  360       1-Oct-27
4607918   NORTH ARLINGTON             NJ       07031        SFD        8.250        7.984             $683.66  360       1-Jul-27
4608143   SOMERS                      NY       10589        LCO        8.250        7.984           $1,607.71  360       1-Sep-27
4608189   PLANO                       TX       75093        SFD        8.375        8.109           $2,867.00  360       1-Jul-27
4608551   IRVINE                      CA       92620        SFD        8.250        7.984           $1,875.16  360       1-Sep-27
4608629   MOUNT VERNON                NY       10552        MF2        8.750        8.484           $2,357.74  360       1-Sep-27
4608651   GLOUCESTER                  MA       01930        SFD        7.625        7.359           $1,613.77  360       1-Sep-27
4608989   DANVILLE                    CA       94506        SFD        8.125        7.859           $2,679.31  360       1-Oct-27
4609147   WASHINGTON                  DC       20010        THS        8.375        8.109           $1,744.37  360       1-Jul-27
4609487   ELDERBURG                   MD       21784        SFD        8.750        8.484           $2,611.85  360       1-Jul-27
4609925   INVERNESS                   IL       60067        SFD        8.875        8.609           $1,776.28  360       1-Sep-27
4610018   HERNDON                     VA       22071        SFD        8.500        8.234           $1,722.37  360       1-Jun-27
4610064   ENGLEWOOD                   CO       80112        SFD        8.125        7.859           $1,678.05  360       1-Jun-27
4610268   COHASSET                    MA       02025        SFD        7.875        7.609           $1,740.17  360       1-Sep-27
4610842   BATESVILLE                  MS       38606        SFD        8.000        7.734           $1,650.97  360       1-Jul-27
4610940   WIMBERLEY                   TX       78676        SFD        8.000        7.734           $2,113.24  360       1-Aug-27
4611073   SIERRA MADRE                CA       91024        SFD        8.125        7.859           $2,257.19  360       1-Jun-27
4611525   MESA                        AZ       85215        SFD        8.000        7.734           $1,828.55  360       1-Aug-27
4611605   WESTFIELD                   NJ       07090        SFD        8.000        7.734           $1,661.24  360       1-Sep-27
4611630   WEST SHADY                  NY       12494        SFD        8.625        8.359             $738.91  360       1-Oct-27
4611814   SANDY                       UT       84093        SFD        8.000        7.734           $1,929.81  360       1-Sep-27
4612015   TULSA                       OK       74137        SFD        8.250        7.984           $1,683.59  360       1-Jul-27
4612268   CORPUS CRISTI               TX       78410        SFD        8.375        8.109             $960.54  360       1-Aug-27
4612314   LAKE GROVE                  NY       11755        SFD        8.500        8.234           $1,943.82  360       1-Sep-27
4612324   ELK GROVE VILLAGE           IL       60007        LCO        8.375        8.109             $330.64  360       1-Aug-27
4612337   TWP OF SOUTH ORANGE VILLA   NJ       07079        SFD        7.875        7.609           $2,806.02  360       1-Sep-27
4612757   KINNELON                    NJ       07405        SFD        8.125        7.859           $2,598.75  360       1-Sep-27
4612900   RANCHO MURIETA              CA       95683        SFD        8.750        8.484           $1,876.28  360       1-Jun-27
4613123   MAHWAH                      NJ       07430        SFD        7.875        7.609           $1,740.17  360       1-Sep-27
4613137   PHOENIX                     AZ       85022        SFD        8.250        7.984           $2,037.06  360       1-Aug-27
4613138   SILVER SPRING               MD       20905        SFD        7.500        7.234           $2,097.65  360       1-Oct-27
4613264   TUCSON                      AZ       85745        SFD        7.875        7.609           $1,653.16  360       1-Jun-27
4613408   MIDDLETOWN TOWNSHIP         NJ       07748        SFD        7.750        7.484           $1,862.68  360       1-Sep-27
4613536   CLINTON                     NJ       08809        LCO        7.750        7.484             $415.52  360       1-Oct-27
4613651   MONROE TOWNSHIP             NJ       08831        SFD        8.500        8.234           $1,676.24  360       1-Jul-27
4613951   MISSION VIEJO               CA       92691        SFD        8.125        7.859           $1,707.74  360       1-Jun-27
4614311   LUTHERVILLE                 MD       21093        SFD        7.875        7.609           $1,682.16  360       1-Aug-27
4614397   SHERBORN                    MA       01770        SFD        7.625        7.359           $1,946.44  360       1-Sep-27
4614428   WYCKOFF                     NJ       07481        SFD        8.000        7.734           $2,788.31  360       1-Sep-27
4614460   SAN ANSELMO                 CA       94960        SFD        8.375        8.109           $2,280.22  360       1-Jun-27
4614577   MERCER ISLAND               WA       98040        SFD        8.250        7.984           $2,141.11  360       1-Jul-27
4614914   DANA POINT                  CA       92629        SFD        8.125        7.859           $1,709.97  360       1-Aug-27
4615138   SUPERIOR                    CO       80027        SFD        7.750        7.484           $1,575.75  360       1-Aug-27
4615236   MAMARONECK                  NY       10538        SFD        7.875        7.609           $1,268.88  360       1-Sep-27
4615447   SAN RAFAEL                  CA       94901        SFD        8.250        7.984           $2,416.07  360       1-Jun-27
4615618   ARMONK                      NY       10504        SFD        8.625        8.359           $3,080.05  360       1-Aug-27
4615658   CARLSBAD                    CA       92009        SFD        7.625        7.359           $1,769.48  360       1-Aug-27
4615923   VALDOSTA                    GA       31602        SFD        7.750        7.484           $1,839.75  360       1-Sep-27
4616207   ORLANDO                     FL       32826        SFD        8.000        7.734           $3,710.72  344       1-Mar-26
4616241   PLAINVIEW                   NY       11803        SFD        8.000        7.734           $1,829.65  360       1-Sep-27
4616486   HUDSON                      OH       44236        SFD        6.875        6.609           $1,629.19  360       1-Sep-27
4616584   MT JULIET                   TN       37122        SFD        8.000        7.734           $1,761.04  360       1-Sep-27
4616985   HAMPTON BAYS                NY       11946        SFD        8.000        7.734             $931.88  360       1-Sep-27
4617212   STUDIO CITY                 CA       91604        LCO        8.250        7.984             $961.62  360       1-Aug-27
4617310   KEY WEST                    FL       33040        SFD        8.125        7.859           $3,034.96  360       1-Sep-27
4617328   DAVIDSONVILLE               MD       21035        SFD        7.875        7.609           $1,740.17  360       1-Jul-27
4617639   MOSCOW                      ID       83843        SFD        7.750        7.484           $2,077.60  360       1-Oct-27
4617685   NEW CITY                    NY       10956        SFD        7.750        7.484           $2,397.17  240       1-Oct-17
4617964   HUNTINGTON STATION          NY       11746        SFD        8.125        7.859             $831.60  360       1-Oct-27
4618151   PHOENIX                     AZ       85016        SFD        8.250        7.984           $2,629.44  360       1-Aug-27
4618172   OYSTER BAY TOWN             NY       11753        SFD        7.875        7.609           $1,960.59  360       1-Sep-27
4618467   CLARKESVILLE                GA       30523        SFD        8.000        7.734           $2,348.05  360       1-Aug-27
4618503   GREENVILLE                  DE       19807        SFD        7.875        7.609           $3,596.71  360       1-Sep-27
4618603   BREWSTER                    NY       10509        SFD        7.875        7.609           $1,696.67  360       1-Sep-27
4618627   FISHERVILLE                 TN       38028        SFD        7.875        7.609           $1,881.56  360       1-Aug-27
4618828   PRESCOTT                    AZ       86301        SFD        8.000        7.734           $4,402.59  360       1-Jul-27
4618865   FAIR HAVEN                  NJ       07704        SFD        7.750        7.484           $3,152.22  360       1-Sep-27
4618870   DEVON                       PA       19333        SFD        7.500        7.234           $1,776.01  360       1-Sep-27
4619315   POMPTON LAKES               NJ       07442        LCO        8.500        8.234             $692.03  360       1-Jul-27
4619368   OLIVE                       NY       12461        SFD        8.250        7.984             $808.36  360       1-Sep-27
4619500   LAYTON                      UT       84041        SFD        7.875        7.609           $1,624.16  360       1-Aug-27
4619678   TUSTIN                      CA       92780        SFD        8.250        7.984           $1,819.94  360       1-Jul-27
4619779   SAGAMORE BEACH              MA       02562        SFD        8.125        7.859           $2,851.19  360       1-Sep-27
4620086   ORANGE BEACH                AL       36561        SFD        7.875        7.609           $2,900.28  360       1-Sep-27
4620430   POWAY                       CA       92064        SFD        7.750        7.484           $1,705.07  360       1-Oct-27
4620770   PALATINE                    IL       60067        SFD        8.125        7.859           $2,159.19  360       1-Sep-27
4620998   WEST LINN                   OR       97068        SFD        7.875        7.609           $1,618.36  360       1-Sep-27
4621359   OSHKOSH                     WI       54901        SFD        8.000        7.734           $2,935.06  360       1-Sep-27
4621451   SEA CLIFF                   NY       11579        SFD        7.625        7.359           $2,548.06  360       1-Oct-27
4621760   AUSTIN                      TX       78727        SFD        7.875        7.609             $592.02  360       1-Sep-27
4622132   OKLAHOMA CITY               OK       73142        SFD        7.875        7.609           $2,157.81  360       1-Aug-27
4622178   OLD HICKORY                 TN       37138        SFD        7.875        7.609           $1,566.15  360       1-Sep-27
4622414   SAN MARCOS                  CA       92069        SFD        7.875        7.609           $1,740.17  360       1-Sep-27
4622658   WARREN TOWNSHIP             NJ       07059        SFD        8.000        7.734           $1,614.29  360       1-Sep-27
4622698   KEY WEST                    FL       33040        SFD        7.750        7.484           $2,206.55  360       1-Oct-27
4622709   TOWNSHIP OF SOUTH BRUNSWI   NJ       08810        SFD        8.250        7.984           $1,919.49  360       1-Sep-27
4622787   NICHOLS HILL                OK       73116        SFD        8.125        7.859           $2,120.57  360       1-Aug-27
4623134   SPRINGTOWN                  TX       76082        SFD        8.000        7.734           $2,151.40  360       1-Sep-27
4623354   NEW HYDE PARK               NY       11040        SFD        8.375        8.109           $1,282.63  360       1-Sep-27
4623371   BALD KNOB                   AR       72010        SFD        7.750        7.484           $1,719.39  360       1-Sep-27
4623477   TEANECK                     NJ       07666        SFD        8.125        7.859             $928.86  360       1-Sep-27
4623479   WOODBINE                    MD       21797        SFD        8.500        8.234           $2,748.49  360       1-Aug-27
4623543   HUNTINGTON STATION          NY       11746        SFD        7.500        7.234           $1,840.34  360       1-Oct-27
4623553   TOWNSHIP OF TEWKSBURY       NJ       08833        SFD        8.000        7.734           $1,614.29  360       1-Aug-27
4623602   GREENWOOD                   IN       46143        SFD        7.875        7.609           $2,247.72  360       1-Oct-27
4623645   LAGUNA NIGUEL               CA       92677        SFD        7.750        7.484           $1,690.73  360       1-Aug-27
4623719   HICKORY                     NC       28601        SFD        7.750        7.484           $2,507.45  360       1-Oct-27
4623725   CUPERTINO                   CA       95014        SFD        7.875        7.609           $2,936.54  360       1-Oct-27
4623766   VIENNA                      VA       22181        SFD        7.250        6.984           $1,511.70  360       1-Sep-27
4623904   COEUR D'ALENE               ID       83814        SFD        7.750        7.484           $2,865.65  360       1-Sep-27
4623955   SAN DIEGO                   CA       92131        SFD        7.875        7.609           $2,102.71  360       1-Aug-27
4624021   LITTLETON                   CO       80127        SFD        8.250        7.984             $687.41  360       1-Jul-27
4624055   VOORHEES TOWNSHIP           NJ       08043        SFD        7.875        7.609           $2,342.70  360       1-Aug-27
4624120   SLIDELL                     LA       70458        SFD        7.875        7.609           $1,844.58  360       1-Sep-27
4624146   LITTLETON                   CO       80124        PUD        7.750        7.484           $1,688.58  360       1-Oct-27
4624429   LAS VEGAS                   NV       89128        SFD        8.000        7.734           $1,687.66  360       1-Sep-27
4624936   TEANECK                     NJ       07666        SFD        8.000        7.734           $2,905.71  360       1-Oct-27
4624954   HERNDON                     VA       20170        SFD        7.625        7.359           $2,450.03  360       1-Aug-27
4624983   PASADENA                    CA       91105        SFD        7.750        7.484           $2,973.12  360       1-Oct-27
4625025   KINNELON                    NJ       07405        SFD        7.375        7.109           $2,072.03  360       1-Oct-27
4625367   MADISON                     MS       39110        SFD        7.625        7.359           $1,592.54  360       1-Sep-27
4625372   EAST BRUNSWICK              NJ       08816        SFD        8.375        8.109           $1,106.67  360       1-Oct-27
4625428   WEST DES MOINES             IA       50265        SFD        7.750        7.484           $2,320.46  360       1-Sep-27
4625445   BRIDGEWATER                 NJ       08807        SFD        7.500        7.234           $1,629.17  360       1-Sep-27
4625483   NOVATO                      CA       94949        SFD        7.750        7.484           $2,783.26  360       1-Sep-27
4625599   HUNTINGTON BEACH            CA       92649        SFD        7.625        7.359           $1,727.02  360       1-Oct-27
4625617   ALBUQUERQUE                 NM       87122        SFD        8.000        7.734           $2,837.83  360       1-Sep-27
4625768   SANTA MONICA                CA       90403        LCO        7.875        7.609           $2,117.21  360       1-Aug-27
4625887   NANTUCKET                   MA       02554        SFD        7.625        7.359           $3,185.08  360       1-Oct-27
4626062   FORT MYERS                  FL       33908        SFD        8.125        7.859           $1,863.67  360       1-Aug-27
4626189   ACCOKEEK                    MD       20607        SFD        7.500        7.234           $2,057.23  360       1-Aug-27
4626228   SAN ANTONIO                 TX       78209        SFD        7.750        7.484           $3,008.94  360       1-Oct-27
4626275   LEBANON                     NJ       08833        SFD        7.750        7.484           $2,640.34  360       1-Oct-27
4626418   NAPERVILLE                  IL       60565        SFD        7.250        6.984           $2,042.17  360       1-Oct-27
4626506   NORTH MERRICK               NY       11566        SFD        7.750        7.484             $962.86  360       1-Oct-27
4626557   CARLSBAD                    CA       92009        SFD        7.500        7.234           $2,554.93  360       1-Sep-27
4626600   HOWELL                      MI       48843        SFD        8.125        7.859           $1,670.62  360       1-Sep-27
4626664   WEST VALLEY CITY            UT       84128        SFD        8.250        7.984             $769.30  360       1-Sep-27
4626668   IRVINE                      CA       92620        SFD        7.375        7.109           $1,893.83  360       1-Sep-27
4626758   GARDEN CITY                 NY       11530        SFD        7.750        7.484           $1,755.21  360       1-Oct-27
4626787   SAN RAMON                   CA       94583        SFD        7.875        7.609           $2,236.84  360       1-Sep-27
4626790   METHUEN                     MA       01844        SFD        7.375        7.109           $1,864.82  360       1-Sep-27
4626931   SCOTTSDALE                  AZ       85255        SFD        7.750        7.484           $1,788.17  360       1-Oct-27
4627059   SANDY                       UT       84093        SFD        7.750        7.484           $1,776.70  360       1-Sep-27
4627175   NAPLES                      FL       34102        SFD        8.125        7.859           $1,805.75  360       1-Sep-27
4627294   GREAT NECK                  NY       11023        SFD        8.125        7.859           $1,767.14  360       1-Sep-27
4627324   BELMAR                      NJ       07719        SFD        8.000        7.734           $2,201.30  360       1-Oct-27
4627454   LIDO BEACH                  NY       11561        SFD        8.125        7.859           $3,062.81  360       1-Sep-27
4627457   ANNAPOLIS                   MD       21401        SFD        8.250        7.984           $2,013.40  360       1-Jul-27
4627465   STERLING                    VA       20165        SFD        7.625        7.359           $2,095.07  360       1-Jul-27
4627474   DELRAY BEACH                FL       33445        SFD        8.500        8.234           $1,322.54  360       1-Sep-27
4627638   EDMONDS                     WA       98020        SFD        7.750        7.484           $1,791.03  360       1-Sep-27
4627645   AUSTIN                      TX       78731        SFD        7.625        7.359           $2,115.25  360       1-Oct-27
4627703   NEW MILFORD                 NJ       07646        SFD        8.625        8.359           $1,396.92  360       1-Sep-27
4627812   PEACHTREE CITY              GA       30269        SFD        7.750        7.484           $1,719.39  360       1-Sep-27
4627859   ELK GROVE                   CA       95624        SFD        8.250        7.984           $1,314.72  360       1-Sep-27
4627884   WASHINGTON TOWNSHIP         NJ       08691        PUD        7.750        7.484             $541.61  360       1-Sep-27
4627969   COROLLA                     NC       27927        PUD        8.125        7.859           $1,914.91  360       1-Sep-27
4628030   COLLEYVILLE                 TX       76034        SFD        7.875        7.609           $2,015.70  360       1-Sep-27
4628217   HAWTHORNE                   NJ       07506        SFD        7.500        7.234           $1,566.24  360       1-Sep-27
4628317   THOUSAND OAKS               CA       91320        SFD        7.500        7.234           $1,608.20  360       1-Oct-27
4628353   LITTLE ELM                  TX       75068        SFD        7.875        7.609           $1,873.58  360       1-Aug-27
4628531   MIDDLE VILLAGE              NY       11379        SFD        7.625        7.359           $1,132.47  360       1-Oct-27
4628688   WATER MILL                  NY       11976        SFD        8.000        7.734           $3,668.83  360       1-Oct-27
4628702   BETHPAGE                    NY       11714        SFD        8.250        7.984           $1,036.75  360       1-Oct-27
4628919   SCARSDALE                   NY       10583        SFD        7.875        7.609           $2,587.05  360       1-Sep-27
4628956   MILLERSVILLE                MD       21108        SFD        8.625        8.359           $3,048.16  360       1-Aug-27
4628966   TUSTIN                      CA       92782        SFD        7.875        7.609           $2,107.06  360       1-Sep-27
4629264   STONY POINT                 NY       10980        SFD        8.125        7.859           $2,138.40  360       1-Sep-27
4629268   BELLEVUE                    WA       98006        SFD        8.000        7.734           $2,345.11  360       1-Oct-27
4629344   CULVER CITY                 CA       90232        SFD        7.875        7.609           $2,363.73  360       1-Sep-27
4629476   PARAMUS                     NJ       07652        SFD        8.500        8.234           $1,537.83  360       1-Oct-27
4629605   VIRGINIA BEACH              VA       23451        SFD        7.750        7.484           $1,676.41  360       1-Sep-27
4629607   NAPLES                      FL       34105        SFD        7.875        7.609           $2,146.21  360       1-Sep-27
4629625   EAST MARION                 NY       11939        SFD        7.875        7.609           $1,036.85  360       1-Oct-27
4629657   CHANDLER                    AZ       85248        SFD        7.750        7.484           $1,729.42  360       1-Sep-27
4629689   LOS ANGELES                 CA       90025        HCO        8.500        8.234           $1,968.42  360       1-Sep-27
4629720   PHOENIX                     AZ       85021        SFD        8.125        7.859           $1,653.91  360       1-Aug-27
4629989   EAST HAMPTON                NY       11937        SFD        8.375        8.109           $1,983.79  360       1-Oct-27
4630006   FAYETTEVILLE                NC       28314        SFD        7.875        7.609           $1,703.92  360       1-Oct-27
4630090   BOWIE                       MD       20715        SFD        7.750        7.484             $661.25  360       1-Aug-27
4630108   WADING RIVER                NY       11792        SFD        8.125        7.859           $1,241.46  360       1-Sep-27
4630146   LAS VEGAS                   NV       89128        SFD        7.750        7.484           $2,384.22  360       1-Sep-27
4630287   JACKSON                     WY       83001        SFD        8.000        7.734           $2,333.38  360       1-Sep-27
4630305   SIGNAL HILL                 CA       90806        SFD        8.000        7.734             $639.85  360       1-Sep-27
4630318   PHOENIX                     AZ       85045        SFD        8.125        7.859           $1,952.03  360       1-Oct-27
4630350   RYE                         NH       03870        SFD        7.625        7.359           $2,328.65  360       1-Oct-27
4630387   MINNETONKA                  MN       55305        SFD        8.125        7.859           $1,076.62  360       1-Sep-27
4630417   RANDOLPH                    NJ       07869        SFD        7.500        7.234           $1,982.28  360       1-Oct-27
4630573   NEW CITY                    NY       10956        SFD        8.125        7.859           $1,722.60  360       1-Sep-27
4630634   HICKSVILLE                  NY       11801        SFD        8.500        8.234           $1,445.56  360       1-Sep-27
4630678   OVERLAND PARK               KS       66210        SFD        7.750        7.484           $2,220.88  360       1-Oct-27
4630684   SILVER SPRING               MD       20904        SFD        8.125        7.859           $1,670.62  360       1-Sep-27
4630780   WARREN TOWNSHIP             NJ       07059        SFD        8.125        7.859           $2,840.06  360       1-Sep-27
4630833   MANORVILLE                  NY       11949        SFD        8.375        8.109           $1,276.93  360       1-Oct-27
4630834   PELHAM                      NY       10803        SFD        7.875        7.609           $2,175.21  360       1-Oct-27
4630938   PRESCOTT                    AZ       86303        SFD        8.250        7.984           $1,660.30  360       1-Aug-27
4631046   HOUSTON                     TX       77005        SFD        7.625        7.359           $2,165.85  360       1-Sep-27
4631101   WEST LINN                   OR       97068        SFD        7.875        7.609           $3,624.98  360       1-Sep-27
4631164   SOUTHAMPTON                 NY       11968        SFD        8.625        8.359           $2,607.55  360       1-Sep-27
4631208   PONTE VERDRA BEACH          FL       32082        SFD        8.000        7.734           $1,748.56  360       1-Aug-27
4631247   LENEXA                      KS       66220        SFD        7.250        6.984           $2,046.53  360       1-Sep-27
4631259   FOUNTAIN HILLS              AZ       85268        SFD        8.000        7.734           $2,247.89  360       1-Aug-27
4631335   SAN MATEO                   CA       94402        SFD        7.875        7.609           $2,088.20  360       1-Sep-27
4631480   RICHMOND                    VA       23229        SFD        7.875        7.609           $1,935.94  360       1-Aug-27
4631489   SAN DIEGO                   CA       92130        SFD        7.750        7.484           $2,579.08  360       1-Aug-27
4631494   CHICAGO                     IL       60647        SFD        7.875        7.609           $3,018.11  360       1-Sep-27
4631583   DUNKIRK                     MD       20754        SFD        7.500        7.234           $1,957.81  360       1-Oct-27
4631678   SHARON                      MA       02067        SFD        8.125        7.859           $1,730.02  360       1-Sep-27
4631716   PORT WASHINGTON             NY       11050        SFD        8.000        7.734           $2,529.29  360       1-Aug-27
4631737   FLUSHING                    NY       11358        SFD        8.125        7.859           $2,178.49  360       1-Jun-27
4631746   SOUTHAMPTON                 NY       11968        SFD        8.125        7.859           $1,308.65  360       1-Aug-27
4631760   DIX HILLS                   NY       11746        SFD        8.375        8.109           $1,900.18  360       1-Aug-27
4631766   RICHMOND                    VA       23294        SFD        8.000        7.734             $616.37  360       1-Sep-27
4631769   CENTERPORT                  NY       11721        SFD        8.125        7.859           $1,930.49  360       1-Aug-27
4631777   GLENVIEW                    IL       60025        SFD        7.625        7.359           $2,754.74  360       1-Oct-27
4631782   FT THOMAS                   KY       41075        SFD        7.875        7.609           $1,664.03  360       1-Sep-27
4631783   ST JAMES                    NY       11780        SFD        8.250        7.984           $1,976.96  360       1-Jul-27
4631848   LONG BEACH                  CA       90815        SFD        8.000        7.734           $1,555.59  360       1-Oct-27
4631923   SARATOGA                    CA       95070        SFD        7.500        7.234           $3,146.47  360       1-Oct-27
4631937   PLEASANTON                  CA       94588        SFD        7.500        7.234           $3,752.69  360       1-Oct-27
4631944   COS COB                     CT       06807        SFD        7.250        6.984           $2,899.25  360       1-Oct-27
4632033   MILLSTONE TWP               NJ       08510        SFD        8.125        7.859           $1,959.45  360       1-Sep-27
4632230   PAWLING                     NY       12564        SFD        8.125        7.859           $3,229.87  360       1-Sep-27
4632237   LOS ALAMITOS                CA       90720        SFD        8.375        8.109           $1,786.17  360       1-Sep-27
4632357   SANTA BARBARA               CA       93110        SFD        7.625        7.359           $3,715.92  360       1-Oct-27
4632405   OREFIELD                    PA       18069        SFD        8.250        7.984           $1,629.13  360       1-Sep-27
4632433   ST JOSEPH                   MO       64506        SFD        7.750        7.484           $2,149.24  360       1-Oct-27
4632462   AUSTIN                      TX       78735        SFD        7.875        7.609           $1,993.94  360       1-Sep-27
4632502   ORANGE                      CA       92867        SFD        7.750        7.484           $2,054.68  360       1-Sep-27
4632504   MYAKKA CITY                 FL       34281        SFD        8.250        7.984             $999.19  360       1-Sep-27
4632662   JAMAICA ESTATES             NY       11432        SFD        8.625        8.359           $1,788.92  360       1-Oct-26
4632752   ST JAMES                    NY       11780        SFD        8.500        8.234           $2,890.35  360       1-Nov-26
4632868   BARTLETT                    TN       38135        SFD        8.000        7.734           $1,687.66  360       1-Sep-27
4633008   CINTI                       OH       45242        SFD        7.125        6.859           $1,987.47  360       1-Oct-27
4633065   PHOENIX                     AZ       85016        SFD        7.875        7.609           $1,798.18  360       1-Oct-27
4633197   WESTON                      MO       64098        SFD        7.625        7.359           $2,123.38  360       1-Oct-27
4633234   SANTA ANA AREA              CA       92705        SFD        7.500        7.234           $5,279.07  360       1-Oct-27
4633243   PHOENIX                     AZ       85045        SFD        7.875        7.609           $2,505.11  360       1-Sep-27
4633326   MANHASSET                   NY       11030        SFD        7.875        7.609           $3,045.29  360       1-Feb-27
4633338   BAYPORT                     NY       11705        SFD        8.625        8.359           $1,684.69  360       1-Jan-27
4633692   ELK GROVE                   CA       95624        SFD        7.750        7.484             $716.42  360       1-Sep-27
4633757   MAMARONECK                  NY       10543        SFD        8.500        8.234           $1,460.94  360       1-Oct-27
4633807   BIRMINGHAM                  AL       35242        SFD        7.750        7.484           $1,787.13  360       1-Sep-27
4633968   BRONXVILLE                  NY       10708        SFD        8.375        8.109           $3,420.33  360       1-Oct-27
4633974   WESTMINSTER                 CO       80234        LCO        8.000        7.734             $524.65  360       1-Sep-27
4634007   SHORT HILLS                 NJ       07078        SFD        7.750        7.484           $2,063.27  360       1-Oct-27
4634049   FREMONT                     CA       94539        SFD        8.250        7.984           $1,652.79  360       1-Sep-27
4634243   PARK CITY                   UT       84098        SFD        7.500        7.234           $1,755.03  360       1-Oct-27
4634320   SANTA CRUZ                  CA       95062        SFD        8.000        7.734           $1,831.48  360       1-Sep-27
4634362   GLEN COVE                   NY       11542        SFD        8.250        7.984           $1,742.94  360       1-Jul-27
4634391   BAYSIDE                     NY       11360        SFD        8.500        8.234           $1,826.17  360       1-Feb-27
4634409   PORT WASHINGTON             NY       11050        SFD        7.500        7.234           $2,391.31  360       1-Apr-27
4634427   FREEPORT                    NY       11520        SFD        7.875        7.609           $1,631.41  360       1-Mar-27
4634434   MT SINAI                    NY       11766        SFD        7.750        7.484           $1,791.03  360       1-Jun-27
4634436   SEATTLE                     WA       98119        SFD        7.625        7.359           $1,923.78  360       1-Sep-27
4634452   LA GRANGE                   IL       60525        SFD        7.875        7.609           $1,753.22  360       1-Aug-27
4634551   EAST HAMPTON                NY       11937        SFD        8.375        8.109           $2,204.21  360       1-Oct-27
4634657   MELVILLE                    NY       11747        SFD        8.375        8.109           $4,674.44  360       1-Jul-27
4634704   KEY LARGO                   FL       33037        SFD        8.125        7.859           $1,752.29  360       1-Sep-27
4634753   POWAY                       CA       92064        SFD        7.500        7.234           $1,929.83  360       1-Sep-27
4634801   SPENCERVILLE                IN       46788        SFD        8.000        7.734           $1,592.27  360       1-Sep-27
4634902   JACKSONVILLE                FL       32259        SFD        7.625        7.359           $1,622.26  360       1-Sep-27
4634921   MARSHALL                    VA       20115        SFD        7.875        7.609           $1,740.17  360       1-Aug-27
4634990   RIDGEFIELD                  CT       06877        SFD        8.000        7.734           $1,291.43  360       1-Oct-27
4635034   SUMMIT                      NJ       07901        SFD        7.750        7.484             $952.83  360       1-Sep-27
4635093   SAN JOSE                    CA       95136        SFD        8.125        7.859           $1,854.39  360       1-Sep-27
4635097   PARADISE VALLEY             AZ       85253        SFD        7.875        7.609           $3,016.29  360       1-Sep-27
4635100   THOUSAND OAKS               CA       91360        SFD        8.750        8.484           $3,146.81  360       1-Oct-27
4635148   SAN DIEGO                   CA       92109        SFD        7.750        7.484           $2,578.44  360       1-Oct-27
4635180   EAST NORTHPORT              NY       11731        SFD        7.625        7.359           $1,624.39  360       1-Sep-27
4635254   NAPERVILLE                  IL       60565        SFD        7.625        7.359           $1,635.01  360       1-Oct-27
4635301   SAN CLEMENTE                CA       92673        PUD        8.125        7.859           $2,756.15  360       1-Sep-27
4635412   BOUNTIFUL                   UT       84010        SFD        7.750        7.484           $1,991.63  360       1-Oct-27
4635442   SEARINGTOWN                 NY       11507        SFD        8.250        7.984           $3,470.86  360       1-Mar-27
4635453   SOUTHAMPTON                 NY       11968        SFD        8.250        7.984           $1,772.99  360       1-Jun-27
4635476   PORTLAND                    OR       97219        SFD        7.875        7.609           $3,480.33  360       1-Sep-27
4635485   LAKEVILLE                   CT       06039        SFD        8.500        8.234             $807.36  360       1-Oct-27
4635495   MANHASSET                   NY       11030        SFD        7.875        7.609           $2,668.26  360       1-Apr-27
4635537   SETAUKET                    NY       11733        SFD        8.125        7.859           $3,771.89  360       1-Apr-27
4635554   MARCO ISLAND                FL       34145        HCO        8.625        8.359           $1,050.02  360       1-Sep-27
4635668   AUSTIN                      TX       78746        SFD        8.125        7.859           $2,108.70  360       1-Oct-27
4635702   KILL DEVIL HILLS            NC       27948        SFD        8.625        8.359             $777.79  360       1-Oct-27
4635752   WEST LINN                   OR       97068        SFD        7.875        7.609           $3,806.62  360       1-Oct-27
4635886   CORAL GABLES                FL       33134        SFD        8.375        8.109           $1,354.39  240       1-Sep-17
4635906   LAGUNA NIGUEL               CA       92677        SFD        7.875        7.609           $2,207.84  360       1-Oct-27
4635927   NAPA                        CA       94558        SFD        8.250        7.984           $2,704.56  360       1-Oct-27
4636117   WINDERMERE                  FL       34786        SFD        7.750        7.484           $2,151.39  360       1-Sep-27
4636126   BERNARDS TOWNSHIP           NJ       07920        SFD        8.000        7.734           $2,421.43  360       1-Sep-27
4636183   FRANKLIN                    TN       37064        SFD        8.375        8.109           $1,847.74  360       1-Sep-27
4636229   FAIRFAX STATION             VA       22039        SFD        8.250        7.984           $2,238.78  360       1-Oct-27
4636332   GARDEN CITY                 NY       11530        HCO        8.125        7.859           $2,227.49  360       1-May-27
4636355   ATLANTA                     GA       30305        SFD        8.375        8.109           $3,177.11  360       1-Sep-27
4636367   WHITTIER                    CA       90605        SFD        7.750        7.484           $1,908.53  360       1-Oct-27
4636476   ALEXANDRIA                  VA       22314        PUD        7.500        7.234           $1,752.59  360       1-Oct-27
4636484   KAILUA KONA                 HI       96740        SFD        8.000        7.734             $733.77  360       1-Sep-27
4636495   DIAMOND BAR                 CA       91765        LCO        8.250        7.984           $1,093.85  360       1-Sep-27
4636496   PEACHTREE CITY              GA       30269        SFD        8.750        8.484           $1,038.45  360       1-Sep-27
4636625   TIBURON                     CA       94920        LCO        8.000        7.734           $3,815.58  360       1-Sep-27
4636806   GOLDSBORO                   NC       27534        SFD        8.000        7.734           $2,935.06  360       1-Oct-27
4636927   HILTON HEAD ISLAND          SC       29928        SFD        8.250        7.984           $2,366.49  360       1-Oct-27
4636946   VALLEY STREAM               NY       11581        SFD        8.250        7.984             $820.39  360       1-Sep-27
4636965   TAMPA                       FL       33647        SFD        8.250        7.984           $1,677.21  360       1-Oct-27
4637036   GOLD RIVER                  CA       95670        SFD        8.375        8.109           $2,036.99  360       1-Sep-27
4637037   SAN FRANCISCO               CA       94121        MF2        7.875        7.609           $3,183.06  360       1-Oct-27
4637044   GROTON                      MA       01450        LCO        8.125        7.859           $1,626.07  360       1-Sep-27
4637086   UPLAND                      CA       91786        SFD        8.000        7.734           $2,863.89  360       1-Sep-27
4637120   MASSAPEQUA PARK             NY       11762        SFD        7.750        7.484           $2,163.56  360       1-Mar-27
4637123   DIX HILLS                   NY       11746        SFD        8.625        8.359           $1,827.81  360       1-Jun-27
4637129   PLANDOME MANOR              NY       11030        SFD        7.875        7.609           $1,812.67  360       1-Apr-27
4637365   CHEVY CHASE                 MD       20815        SFD        7.625        7.359           $2,123.39  360       1-Aug-27
4637379   TULSA                       OK       74137        SFD        8.125        7.859           $1,871.09  360       1-Jul-27
4637388   MARBLEHEAD                  MA       01945        SFD        8.000        7.734           $2,127.92  360       1-Jul-27
4637411   LEWIS BEACH                 DE       19958        SFD        8.000        7.734           $2,678.25  360       1-Aug-27
4637418   CHICAGO                     IL       60610        SFD        7.875        7.609           $2,404.34  360       1-Aug-27
4637480   PITTSTOWN                   NJ       08867        SFD        7.500        7.234           $2,097.65  360       1-Oct-27
4637530   EUGENE                      OR       97405        SFD        7.875        7.609           $1,812.67  360       1-Oct-27
4637593   SAN JOSE                    CA       95148        SFD        8.000        7.734           $2,311.36  360       1-Oct-27
4637746   ANCRAM                      NY       12512        SFD        8.250        7.984             $593.51  360       1-Oct-27
4637779   POWELL                      OH       43065        SFD        8.000        7.734           $3,467.78  360       1-Aug-27
4637890   CREAMRIDGE                  NJ       08514        SFD        8.125        7.859           $1,373.62  360       1-Oct-27
4638039   CINCINNATI                  OH       45249        SFD        7.625        7.359           $1,769.48  360       1-Aug-27
4638075   GIG HARBOR                  WA       98335        SFD        7.625        7.359           $2,256.10  360       1-Oct-27
4638119   COSTA MESA                  CA       92627        SFD        7.875        7.609           $1,747.42  360       1-Oct-27
4638124   RANCHO STA MARGARITA        CA       92688        PUD        7.875        7.609           $1,876.12  360       1-Sep-27
4638165   MASSAPEQUA                  NY       11758        SFD        8.375        8.109           $1,907.78  360       1-Oct-26
4638178   SETAUKET                    NY       11733        SFD        8.000        7.734           $1,834.41  360       1-Mar-27
4638190   LAKEWOOD                    NJ       08701        SFD        8.000        7.734           $1,790.39  360       1-Oct-27
4638200   JAMAICA ESTATES             NY       11423        SFD        7.750        7.484           $1,647.75  360       1-May-27
4638214   OCEANSIDE                   NY       11572        SFD        7.625        7.359           $1,599.61  360       1-Feb-27
4638218   ORANGE                      CA       92867        SFD        8.125        7.859           $2,447.28  360       1-Jul-27
4638230   NAPERVILLE                  IL       60564        SFD        8.625        8.359           $1,813.03  360       1-Jul-27
4638233   ST LOUIS                    MO       63131        SFD        7.875        7.609           $1,769.17  360       1-Aug-27
4638245   PORTLAND                    OR       97225        SFD        8.000        7.734           $3,146.38  360       1-Aug-27
4638252   HIGHLAND PARK               IL       60035        SFD        8.375        8.109           $1,854.58  360       1-Jul-27
4638260   SHERWOOD                    MD       21665        SFD        8.375        8.109           $1,672.16  360       1-Jun-27
4638265   STEVENSON RANCH AREA        CA       91381        SFD        7.750        7.484           $1,666.02  360       1-Sep-27
4638317   BURKE                       VA       22015        SFD        8.500        8.234           $1,899.22  360       1-Sep-27
4638321   BROOKLINE                   MA       02146        MF2        8.625        8.359           $2,905.83  360       1-Jul-27
4638343   LA MIRADA                   CA       90638        SFD        7.875        7.609           $1,861.98  360       1-Aug-27
4638363   ENCINO                      CA       91436        SFD        7.875        7.609           $3,480.34  360       1-Sep-27
4638364   CUPERTINO                   CA       95014        SFD        7.875        7.609           $2,465.24  360       1-Aug-27
4638386   WOODINVILLE                 WA       98072        SFD        8.250        7.984           $1,427.41  360       1-Sep-27
4638456   STAYTON                     OR       97383        SFD        7.625        7.359           $1,738.70  360       1-Jul-27
4638469   CRESTED BUTTE               CO       81224        LCO        8.000        7.734             $572.34  360       1-Sep-27
4638480   MISSION VIEJO               CA       92692        PUD        8.250        7.984           $2,555.81  360       1-Oct-27
4638486   POINT LOOKOUT               NY       11569        SFD        8.000        7.734           $1,761.03  360       1-Jul-27
4638496   MILLER PLACE                NY       11764        SFD        8.125        7.859           $1,603.79  360       1-Jan-27
4638618   ROSLYN                      NY       11576        SFD        7.750        7.484           $1,791.03  360       1-Jul-27
4638641   HUNTINGTON                  NY       11743        SFD        8.250        7.984           $1,727.91  360       1-Feb-27
4638729   YORBA LINDA                 CA       92686        SFD        8.375        8.109           $1,679.76  360       1-Sep-27
4638745   WEST HOLLYWOOD              CA       90048        SFD        8.250        7.984           $1,622.74  360       1-Oct-27
4638858   CEDAR CITY                  UT       84720        SFD        7.875        7.609           $2,115.03  360       1-Sep-27
4638869   WALNUT CREEK                CA       94596        SFD        8.125        7.859           $1,845.85  360       1-Sep-27
4638935   DEVON                       PA       19333        SFD        8.000        7.734           $3,375.32  360       1-Aug-27
4639010   LOS ALTOS                   CA       94022        SFD        7.500        7.234           $4,195.29  360       1-Oct-27
4639079   BOZEMAN                     MT       59718        SFD        8.375        8.109             $574.62  360       1-Sep-27
4639196   NEW ROCHELLE                NY       10804        SFD        8.250        7.984           $1,660.30  360       1-Oct-27
4639213   NEW MILFORD                 CT       06776        SFD        8.000        7.734           $1,262.08  360       1-Oct-27
4639279   BEDFORD                     MA       01730        SFD        8.375        8.109           $2,140.37  360       1-Jul-27
4639281   RAMONA                      CA       92065        SFD        8.125        7.859           $1,763.44  360       1-Jul-27
4639283   GRANITE BAY                 CA       95746        SFD        7.750        7.484           $1,788.17  360       1-Aug-27
4639284   FREMONT                     CA       94539        SFD        8.375        8.109           $2,417.04  360       1-Jul-27
4639287   CREVE COEUR                 MO       63141        SFD        8.125        7.859           $1,770.87  360       1-Jul-27
4639288   WOODINVILLE                 WA       98072        SFD        7.750        7.484           $2,385.66  360       1-Aug-27
4639292   EAST BERLIN                 PA       17316        SFD        8.375        8.109           $1,938.19  360       1-Aug-27
4639293   OWINGS                      MD       20736        SFD        8.500        8.234           $2,681.98  360       1-Jun-27
4639294   TORRANCE                    CA       90505        SFD        7.375        7.109           $1,581.65  360       1-Aug-27
4639295   FOOTHILL RANCH              CA       92610        SFD        8.125        7.859           $1,900.80  360       1-Jul-27
4639299   LEBANON                     OR       97355        SFD        8.125        7.859           $1,852.53  360       1-Jul-27
4639302   WICHITA                     KS       67204        SFD        7.875        7.609           $1,740.17  360       1-Jul-27
4639303   SOUTHBOROUGH                MA       01772        SFD        8.375        8.109           $2,733.23  360       1-Jul-27
4639304   DANVILLE                    CA       94526        SFD        7.750        7.484           $1,833.66  360       1-Aug-27
4639306   ENCINITAS                   CA       92024        SFD        8.125        7.859           $2,279.47  360       1-Aug-27
4639307   ST LOUIS                    MO       63141        SFD        7.875        7.609           $2,276.72  360       1-Aug-27
4639310   EL SEGUNDO                  CA       90245        SFD        7.625        7.359           $1,800.63  360       1-Aug-27
4639313   WOODINVILLE                 WA       98072        SFD        8.000        7.734           $2,650.36  360       1-Jul-27
4639319   PROVO                       UT       84604        SFD        7.875        7.609           $1,688.32  360       1-Aug-27
4639321   YORBA LINDA                 CA       92686        SFD        8.125        7.859           $2,041.87  360       1-Aug-27
4639326   ELDERSBURG                  MD       21784        SFD        7.625        7.359           $1,730.56  360       1-Aug-27
4639334   NEWPORT BEACH               CA       92660        SFD        8.125        7.859           $3,712.49  360       1-Aug-27
4639343   NANJEMOY                    MD       20662        SFD        8.125        7.859           $1,655.77  360       1-Aug-27
4639353   READING                     PA       19606        SFD        7.500        7.234           $3,496.08  360       1-Jul-27
4639360   CUPERTINO                   CA       95014        SFD        8.500        8.234           $2,222.17  360       1-Jul-27
4639361   SALT LAKE CITY              UT       84124        SFD        7.875        7.609           $2,145.48  360       1-Oct-27
4639363   REDWOOD CITY                CA       94062        SFD        7.750        7.484           $1,748.05  360       1-Jul-27
4639364   IRVINE                      CA       92604        SFD        8.000        7.734           $1,974.57  360       1-Aug-27
4639369   LIVERMORE                   CA       94550        SFD        8.375        8.109           $1,912.35  360       1-Aug-27
4639375   SARATOGA                    CA       95070        SFD        8.375        8.109           $3,222.71  360       1-Aug-27
4639378   THE WOODLANDS               TX       77381        SFD        7.875        7.609           $2,175.21  360       1-Aug-27
4639382   SPRING GROVE                PA       17362        SFD        8.750        8.484           $2,218.50  360       1-Jul-27
4639383   CANTON                      OH       44718        SFD        8.125        7.859           $1,819.12  360       1-Jul-27
4639385   YORBA LINDA                 CA       92887        SFD        7.500        7.234           $2,027.73  360       1-Aug-27
4639400   HARRISONBURG                VA       22801        SFD        8.000        7.734           $2,171.95  360       1-Aug-27
4639543   MOUNT VERNON                WA       98273        SFD        7.500        7.234           $1,836.49  360       1-Sep-27
4639624   EAST HAMPTON                NY       11937        SFD        8.250        7.984           $1,724.91  360       1-Oct-27
4639630   LEANDER                     TX       78641        SFD        7.875        7.609           $1,341.38  360       1-Oct-27
4639644   NASHUA                      NH       03062        SFD        8.250        7.984           $2,176.80  360       1-Oct-27
4639671   DUXBURY                     MA       02332        SFD        8.250        7.984           $2,629.43  360       1-Oct-27
4639725   CLARKSON VALLEY             MO       63005        SFD        8.000        7.734           $1,834.41  360       1-Sep-27
4639768   MONTVALE                    NJ       07645        SFD        8.125        7.859           $1,841.40  360       1-Oct-27
4639774   BOWLING GREEN               KY       42103        SFD        7.750        7.484           $2,091.93  360       1-Oct-27
4639790   STAMFORD                    CT       06902        SFD        8.125        7.859           $2,923.59  360       1-Oct-27
4639847   SEA CLIFF                   NY       11758        SFD        8.250        7.984           $1,791.78  360       1-Oct-27
4639884   GLEN COVE                   NY       11542        SFD        8.000        7.734           $1,467.53  360       1-Jan-27
4639898   GARDEN CITY                 NY       11530        SFD        8.000        7.734           $2,957.07  360       1-May-27
4639982   SPRINGFIELD                 OR       97478        SFD        8.000        7.734           $3,301.94  360       1-Oct-27
4640004   PLEASANTVILLE               NY       10570        SFD        8.250        7.984           $2,396.55  360       1-Oct-27
4640321   BOULDER                     CO       80304        SFD        7.750        7.484           $1,791.04  360       1-Oct-27
4640326   CHARLESTON                  SC       29418        SFD        8.250        7.984             $390.66  360       1-Oct-27
4640363   MARIETTA                    GA       30062        SFD        7.875        7.609           $2,088.20  360       1-Sep-27
4640557   TREVOSE                     PA       19053        SFD        7.500        7.234             $776.97  360       1-Sep-27
4640765   SAN ANTONIO                 TX       78249        SFD        8.375        8.109             $789.34  360       1-Sep-27
4640814   TIMONIUM                    MD       21093        SFD        8.500        8.234           $2,921.88  360       1-Oct-27
4640839   SHERMAN OAKS                CA       91403        LCO        8.250        7.984           $1,153.95  360       1-Oct-27
4640861   YORBA LINDA                 CA       92886        PUD        8.000        7.734           $1,567.33  360       1-Sep-27
4640992   OAKLAND                     CA       94611        SFD        7.625        7.359           $1,896.89  360       1-Oct-27
4641111   PLANDOME                    NY       11030        SFD        8.500        8.234           $2,306.74  360       1-Jun-27
4641131   SETAUKET                    NY       11733        SFD        8.125        7.859           $1,957.22  360       1-Feb-27
4641140   NISSEQUOGUE                 NY       11780        SFD        8.125        7.859           $3,593.69  360       1-Jul-27
4641310   OMAHA                       NE       68130        SFD        7.875        7.609           $1,043.37  360       1-Sep-27
4641400   ATLANTA                     GA       30095        SFD        8.125        7.859             $795.96  360       1-Sep-27
4641591   SAN JOSE                    CA       95128        SFD        7.625        7.359           $1,794.26  360       1-Oct-27
4641766   LONG BEACH                  CA       90814        SFD        8.250        7.984           $2,163.65  360       1-Sep-27
4641821   CINCINNATI                  OH       45208        SFD        7.625        7.359           $2,123.39  360       1-Oct-27
4641865   LEAWOOD                     KS       66209        SFD        8.375        8.109           $2,189.01  360       1-Sep-27
4641963   FREDERICK                   MD       21702        SFD        7.875        7.609           $2,158.54  360       1-Sep-27
4642017   DANVILLE                    CA       94506        PUD        8.125        7.859           $3,831.29  360       1-Oct-27
4642213   WILMINGTON                  DE       19803        SFD        7.625        7.359           $2,649.59  240       1-Oct-17
4642282   SAN DIEGO                   CA       92109        SFD        8.000        7.734           $3,654.15  360       1-Sep-27
4642728   SYRACUSE                    IN       46567        SFD        7.750        7.484           $1,611.93  360       1-Oct-27
4642837   DALLAS                      TX       75287        SFD        7.625        7.359           $1,656.24  360       1-Sep-27
4642851   EL CAJON                    CA       92019        SFD        8.375        8.109           $1,710.16  360       1-Sep-27
4642980   GLENDALE                    CA       91208        SFD        8.000        7.734           $2,212.31  360       1-Oct-27
4643204   KEY WEST                    FL       33040        SFD        7.875        7.609           $2,859.67  360       1-Aug-27
4643246   BROKEN ARROW                OK       74012        SFD        7.750        7.484           $1,977.30  360       1-Oct-27
4643282   MELVILLE                    NY       11747        SFD        8.375        8.109           $1,839.38  360       1-Oct-27
4643393   MT AIRY                     MD       21771        SFD        7.125        6.859           $1,616.93  360       1-Sep-27
4643422   CHADDS FORD                 PA       19317        SFD        8.125        7.859           $2,227.50  360       1-Sep-27
4643596   HUNTINGTON                  NY       11743        SFD        7.875        7.609           $1,740.17  360       1-Oct-27
4643667   MELVILLE                    NY       11747        SFD        8.250        7.984           $2,122.33  360       1-Oct-27
4643751   LOS ALAMITOSAREA            CA       90720        SFD        8.000        7.734           $2,054.55  360       1-Sep-27
4643804   SANDY                       UT       84092        SFD        7.875        7.609           $1,577.76  360       1-Oct-27
4643830   GARNERVILLE                 NY       10923        SFD        8.500        8.234           $1,272.56  360       1-Oct-27
4644469   PARK CITY                   UT       84060        SFD        7.875        7.609           $3,987.88  360       1-Oct-27
4644955   LAFAYETTE                   CA       94549        SFD        7.625        7.359           $2,095.78  360       1-Sep-27
4645077   LITITZ                      PA       17543        SFD        8.125        7.859           $2,015.14  360       1-Oct-27
4645340   LAGUNA NIGUEL               CA       92677        SFD        8.000        7.734           $2,641.56  360       1-Oct-27
4645352   LOS ANGELES                 CA       90045        SFD        8.000        7.734           $1,526.24  360       1-Oct-27
4645507   KEY WEST                    FL       33040        LCO        8.625        8.359           $1,439.69  360       1-Oct-27
4645524   ATHENS-CLARKE               GA       30605        SFD        7.875        7.609           $1,770.62  360       1-Aug-27
4645739   DIX HILLS                   NY       11746        SFD        7.875        7.609           $2,099.81  360       1-Oct-27
4645840   AUSTIN                      TX       78701        HCO        8.500        8.234             $778.53  360       1-Oct-27
4645858   NAGS HEAD                   NC       27959        SFD        8.500        8.234           $3,383.22  360       1-Oct-27
4645948   VANCOUVER                   WA       98664        SFD        8.625        8.359             $777.02  360       1-Oct-27
4645993   WOODLAND HILLS              CA       91367        SFD        8.375        8.109           $1,864.08  360       1-Oct-27
4646069   HOT SPRINGS VILLAGE         AR       71909        SFD        7.750        7.484           $1,576.11  360       1-Sep-27
4646095   LENOIR CITY                 TN       37771        SFD        7.750        7.484           $3,582.07  360       1-Oct-27
4646114   PHOENIX                     AZ       85045        SFD        7.875        7.609           $1,615.45  360       1-Oct-27
4646142   GOSHEN                      AR       72735        SFD        7.375        7.109           $2,707.45  360       1-Sep-27
4646171   VENICE                      FL       34293        SFD        8.500        8.234             $482.88  360       1-Oct-27
4646555   PORTLAND                    OR       97221        SFD        8.250        7.984           $2,211.73  360       1-Oct-27
4646570   CONYERS                     GA       30013        SFD        8.000        7.734             $436.59  360       1-Oct-27
4646616   BETHESDA                    MD       20816        SFD        8.000        7.734           $3,191.88  360       1-Aug-27
4646617   BALTIMORE                   MD       21210        SFD        8.000        7.734           $2,260.00  360       1-Aug-27
4646625   MISSION VIEJO               CA       92692        SFD        7.625        7.359           $1,670.40  360       1-Aug-27
4646628   SAN JOSE                    CA       95129        SFD        8.125        7.859           $1,724.08  360       1-Sep-27
4646629   PROSPECT                    KY       40059        SFD        8.125        7.859           $1,764.17  360       1-Jul-27
4646630   DAYTON                      OH       45419        SFD        8.125        7.859           $2,197.79  360       1-Aug-27
4646632   MOORESTOWN                  NJ       08057        SFD        7.750        7.484           $1,583.27  360       1-Aug-27
4646633   JAMAICA PLAIN               MA       02130        MF2        8.000        7.734           $2,344.38  360       1-Sep-27
4646635   NORTH ANDOVER               MA       01845        SFD        7.750        7.484           $1,748.05  360       1-Aug-27
4646636   SAN FRANCISCO               CA       94118        THS        8.000        7.734           $1,669.32  360       1-Sep-27
4646640   CHRISTIANSBURG              VA       24073        SFD        7.500        7.234           $1,922.84  360       1-Sep-27
4646641   SAN RAMON                   CA       94583        SFD        7.875        7.609           $1,806.88  360       1-Aug-27
4646670   SAN JOSE                    CA       95120        SFD        7.500        7.234           $2,272.45  360       1-Sep-27
4646681   ALPINE                      UT       84004        SFD        7.875        7.609           $2,175.21  360       1-Aug-27
4646686   BLACKSBURG                  VA       24060        SFD        7.750        7.484           $1,748.05  360       1-Sep-27
4646687   REDWOOD CITY                CA       94061        SFD        7.875        7.609           $2,291.22  360       1-Sep-27
4646694   COROLLA                     NC       27927        SFD        8.125        7.859           $1,856.25  360       1-Sep-27
4646696   BEVERLY HILLS               CA       90212        SFD        8.000        7.734           $2,260.00  360       1-Sep-27
4646701   BREWSTER                    MA       02631        SFD        7.625        7.359           $1,905.39  360       1-Aug-27
4646711   LAKE OZARK                  MO       65049        SFD        8.250        7.984           $3,545.98  360       1-Jul-27
4646786   VACAVILLE                   CA       95688        SFD        8.250        7.984           $1,048.02  360       1-Oct-27
4646966   DELRAY BEACH                FL       33446        SFD        8.250        7.984             $878.61  360       1-Oct-27
4647257   HOUSTON                     TX       77030        SFD        7.500        7.234           $2,106.04  360       1-Aug-27
4647261   ALPHARETTA                  GA       30202        SFD        7.875        7.609           $2,337.63  360       1-Aug-27
4647271   FOUNTAIN VALLEY             CA       92708        SFD        7.750        7.484           $1,856.95  360       1-Sep-27
4647273   OCEANSIDE                   OR       97134        SFD        7.750        7.484           $1,862.67  360       1-Aug-27
4647289   HOLLISTON                   MA       01746        SFD        7.625        7.359           $1,730.56  360       1-Aug-27
4647299   WICHITA                     KS       67230        SFD        8.250        7.984           $3,080.19  360       1-Aug-27
4647305   PLEASANTON                  CA       94588        SFD        7.875        7.609           $1,964.94  360       1-Aug-27
4647362   NEWTON                      MA       02160        SFD        7.500        7.234           $1,887.88  360       1-Sep-27
4647372   WEATHERBY LAKE              MO       64152        SFD        7.875        7.609           $1,848.93  360       1-Aug-27
4647374   THOUSAND OAKS               CA       91362        SFD        7.750        7.484           $1,934.32  360       1-Aug-27
4647387   WINCHESTER                  MA       01890        SFD        7.500        7.234           $1,868.31  360       1-Sep-27
4647777   MANHASSET HILLS             NY       11040        SFD        8.500        8.234           $2,768.09  360       1-Oct-27
4647802   TIGARD                      OR       97224        SFD        8.125        7.859           $1,707.75  360       1-Oct-27
4647891   SOUTHAMPTON                 NY       11968        SFD        7.875        7.609           $1,790.93  360       1-Oct-27
4647919   FALLS CHURCH                VA       22041        SFD        8.250        7.984           $2,069.74  360       1-Oct-27
4647953   LONG BEACH                  NJ       08008        SFD        8.750        8.484           $2,832.13  360       1-Mar-27
4647994   IRVINE                      CA       92612        PUD        8.000        7.734           $1,649.51  360       1-Sep-27
4648005   ENCINITAS                   CA       92024        SFD        8.250        7.984           $2,081.76  360       1-Sep-27
4648192   SAN FRANCISCO               CA       94132        SFD        7.750        7.484           $2,342.67  360       1-Sep-27
4648651   SAN JOSE                    CA       95120        SFD        7.375        7.109           $2,900.84  360       1-Oct-27
4648719   TACOMA                      WA       98422        SFD        7.875        7.609           $1,774.61  360       1-Sep-27
4648729   TAYORSVILLE                 UT       84118        SFD        8.375        8.109           $1,108.76  360       1-Sep-27
4649198   KIRKLAND                    WA       98033        SFD        7.375        7.109           $2,071.68  360       1-Oct-27
4649494   ANDOVER                     MN       55304        SFD        7.750        7.484           $1,891.33  360       1-Oct-27
4649791   HAYDEN LAKE                 ID       83835        SFD        7.625        7.359           $1,592.54  360       1-Oct-27
4650432   FAIRFAX                     VA       22030        THS        7.500        7.234           $1,762.03  360       1-Oct-27
4650815   RICHMOND HILL               GA       31324        SFD        8.000        7.734             $857.78  360       1-Oct-27
4651029   SAN DIEGO                   CA       92120        SFD        7.750        7.484           $2,572.64  360       1-Sep-27
4651232   DIX HILLS                   NY       11746        SFD        7.875        7.609           $2,936.53  360       1-Oct-27
6254502   LAS VEGAS                   NV       89134        SFD        7.625        7.359           $1,693.40  360       1-Sep-27
6286286   COLLIERVILLE                TN       38017        SFD        7.625        7.359           $1,678.53  360       1-Aug-27
6320010   RALEIGH                     NC       27606        SFD        7.875        7.609           $1,805.42  360       1-Jul-27
6325791   SAN FRANCISCO               CA       94127        SFD        7.625        7.359           $1,677.47  360       1-Sep-27
6330193   FALLBROOK                   CA       92028        SFD        7.875        7.609           $1,744.52  360       1-Aug-27
6331771   DAYTON                      OH       45458        SFD        8.125        7.859           $1,704.03  360       1-Sep-27
6349806   SUWANEE                     GA       30174        SFD        8.000        7.734           $1,788.37  360       1-Sep-27
6353653   DULUTH                      GA       30155        SFD        7.750        7.484           $2,229.30  360       1-Sep-27
6362710   LOUISVILLE                  KY       40245        SFD        7.750        7.484           $1,626.61  360       1-Aug-27
6369670   SAN JOSE                    CA       95130        SFD        7.750        7.484           $1,927.87  360       1-Oct-27
6370816   CHEVY CHASE                 MD       20815        SFD        7.250        6.984           $2,029.47  360       1-Aug-27
6376153   SANTA BARBARA               CA       93110        PUD        7.750        7.484           $2,292.52  360       1-Aug-27
6377573   ALPHARETTA                  GA       30202        PUD        8.250        7.984           $1,768.59  360       1-Sep-27
6388905   LAKE OSWEGO                 OR       97035        SFD        7.875        7.609           $6,525.62  360       1-Sep-27
6390142   LOS ANGELES                 CA       90071        SFD        7.500        7.234           $5,244.11  360       1-Aug-27
6396027   MINNEAPOLIS                 MN       55416        SFD        7.750        7.484           $1,921.42  360       1-Aug-27
6398761   LOVELAND                    CO       80538        SFD        7.750        7.484           $1,690.73  360       1-Aug-27
6401916   LOS GATOS                   CA       95030        SFD        8.250        7.984           $2,356.35  360       1-Sep-27
6402249   GOLDEN                      CO       80401        PUD        7.750        7.484           $1,647.75  360       1-Sep-27
6402787   STEAMBOAT                   CO       80477        PUD        8.000        7.734           $1,964.65  360       1-Aug-27
6404662   SAN FRANCISCO               CA       94131        SFD        7.625        7.359           $3,012.37  360       1-Sep-27
6406532   WALNUT CREEK                CA       94598        SFD        8.000        7.734           $2,136.14  360       1-Aug-27
6409723   DESCANSO                    CA       91916        SFD        8.000        7.734           $1,624.55  360       1-Sep-27
6411116   OMAHA                       NE       68116        SFD        7.875        7.609           $2,001.19  360       1-Aug-27
6411580   BRICK                       NJ       08724        SFD        7.750        7.484             $788.05  360       1-Sep-27
6416488   NEWTON                      MA       02158        SFD        7.750        7.484           $1,647.75  360       1-Aug-27
6417160   SAN DIEGO                   CA       92130        SFD        7.875        7.609           $2,071.70  240       1-Aug-17
6418117   SAN DIEGO                   CA       92131        SFD        8.000        7.734           $2,127.92  360       1-Jul-27
6418517   PHOENIX                     AZ       85023        SFD        7.875        7.609           $3,190.31  360       1-Sep-27
6423670   OCEAN CITY                  NJ       08226        SFD        8.000        7.734           $3,668.82  360       1-Sep-27
6424243   PARK CITY                   UT       84060        LCO        8.000        7.734             $629.20  360       1-Aug-27
6429445   ANNAPOLIS                   MD       21403        SFD        8.500        8.234           $2,044.58  360       1-Sep-27
6430082   SCARSDALE                   NY       10583        SFD        7.750        7.484           $2,041.77  360       1-Aug-27
6430628   MISSION VIEJO               CA       92690        SFD        7.875        7.609           $2,552.24  360       1-Aug-27
6430726   CORONADO                    CA       92118        SFD        7.750        7.484           $2,111.98  360       1-Aug-27
6430780   LONGMONT                    CO       80503        SFD        7.750        7.484           $2,256.70  360       1-Sep-27
6430884   DENVER                      CO       80210        SFD        7.750        7.484           $1,432.82  360       1-Sep-27
6431216   SAN DIEGO                   CA       92130        PUD        7.875        7.609           $2,163.61  360       1-Aug-27
6431467   GERMANTOWN                  MD       20876        PUD        7.750        7.484           $1,633.42  360       1-Aug-27
6431740   PARK RIDGE                  IL       60068        SFD        7.000        6.734           $1,663.26  360       1-Sep-27
6431759   WILLIAMSBURG                MI       49690        SFD        8.375        8.109           $1,945.78  360       1-Aug-27
6432007   SAN DIEGO                   CA       92107        SFD        7.875        7.609           $3,346.92  360       1-Sep-27
6432222   HEALDSBURG                  CA       95448        SFD        7.750        7.484           $1,719.39  360       1-Aug-27
6432817   CALABASAS                   CA       91301        SFD        7.625        7.359           $2,052.60  360       1-Sep-27
6432970   WICHITA                     KS       67002        SFD        7.625        7.359           $1,663.32  360       1-Aug-27
6433077   PORTLAND                    OR       97202        SFD        8.250        7.984           $1,736.93  360       1-Aug-27
6433184   AREA OF TARZANA             CA       91356        SFD        7.500        7.234           $1,786.84  360       1-Sep-27
6433439   CHINO HILLS                 CA       91709        SFD        8.250        7.984           $1,773.36  360       1-Aug-27
6433823   PETALUMA                    CA       94952        SFD        7.375        7.109           $1,602.37  360       1-Sep-27
6433902   BILLINGS                    MT       59106        SFD        7.875        7.609           $2,378.23  360       1-Sep-27
6433961   LAKEVILLE                   MN       55044        SFD        8.125        7.859           $1,128.60  360       1-Aug-27
6434037   GILROY                      CA       95020        SFD        7.875        7.609           $1,879.38  360       1-Sep-27
6434654   MARGATE                     NJ       08402        SFD        8.500        8.234           $1,084.17  360       1-Aug-27
6435080   CLAYTON                     CA       94517        SFD        7.875        7.609           $2,283.97  360       1-Sep-27
6435208   SANTA CLARITA               CA       91351        PUD        7.750        7.484           $1,571.09  360       1-Aug-27
6435986   GERMANTOWN                  MD       20874        SFD        7.375        7.109           $1,768.13  360       1-Aug-27
6436022   FAIRFAX                     VA       22031        SFD        7.750        7.484           $1,623.39  360       1-Sep-27
6436200   SUDBURY                     MA       01776        SFD        7.500        7.234           $2,721.88  360       1-Sep-27
6436333   ATLANTA                     GA       30305        SFD        8.125        7.859           $1,724.08  360       1-Aug-27
6436761   BRECKENRIDGE                CO       80424        SFD        7.875        7.609           $3,022.09  360       1-Aug-27
6437050   CHARLOTTE                   NC       28277        SFD        7.750        7.484           $1,970.13  360       1-Sep-27
6437281   CHINO HILLS                 CA       91709        SFD        8.125        7.859           $1,688.44  360       1-Aug-27
6437377   SUMMIT                      NJ       07901        SFD        8.125        7.859           $1,921.21  360       1-Oct-27
6437619   POTOMAC                     MD       20854        SFD        7.500        7.234           $1,801.18  360       1-Sep-27
6438327   SO BARRINGTON               IL       60010        SFD        8.125        7.859           $2,858.61  360       1-Sep-27
6438408   PROSPECT HEIGHTS            IL       60070        SFD        8.250        7.984           $1,656.54  360       1-Aug-27
6438714   CARLSBAD                    CA       92009        SFD        7.750        7.484           $1,954.01  360       1-Sep-27
6438781   ASPEN                       CO       81611        SFD        7.750        7.484           $2,364.16  360       1-Aug-27
6439146   STAMFORD                    CT       06902        SFD        8.125        7.859           $1,893.37  360       1-Aug-27
6439439   STERLING                    MA       01564        SFD        8.375        8.109           $1,915.38  360       1-Sep-27
6440099   OCEAN CITY                  NJ       08226        SFD        8.125        7.859           $2,272.04  360       1-Aug-27
6440319   THOUSAND OAKS               CA       91362        SFD        7.750        7.484           $1,647.75  360       1-Aug-27
6440405   OXNARD                      CA       93030        SFD        7.750        7.484           $1,547.45  360       1-Aug-27
6440447   TAMPA                       FL       33647        PUD        7.750        7.484           $1,701.55  360       1-Sep-27
6440685   ARLINGTON                   VA       22207        SFD        7.625        7.359           $2,040.75  360       1-Sep-27
6441155   ENGLEWOOD                   CO       80111        SFD        7.875        7.609           $2,310.07  360       1-Sep-27
6441220   SOLONA BEACH                CA       92075        SFD        7.875        7.609           $2,175.21  360       1-Aug-27
6441355   BRECKENRIDGE                CO       80424        PUD        7.875        7.609           $1,954.79  360       1-Sep-27
6441528   WASHINGTON                  DC       20007        SFD        7.500        7.234           $1,770.41  360       1-Sep-27
6441547   FAIRFAX STATION             VA       22039        SFD        7.250        6.984           $2,046.53  360       1-Aug-27
6441639   FREMONT                     CA       94536        SFD        7.500        7.234           $2,565.84  360       1-Sep-27
6442114   STEAMBOAT SPRINGS           CO       80477        SFD        7.875        7.609           $2,001.19  360       1-Sep-27
6442241   SUNNYVALE                   CA       94086        SFD        8.125        7.859           $1,930.49  360       1-Sep-27
6443098   BASKING RIDGE               NJ       07931        SFD        7.750        7.484           $4,298.47  360       1-Sep-27
6443101   MINNETONKA                  MN       55305        SFD        8.000        7.734           $1,916.26  360       1-Sep-27
6443117   SAN JUAN CAPISTRANO         CA       92675        SFD        8.125        7.859           $2,821.49  360       1-Aug-27
6443194   BIRMINGHAM                  AL       35216        SFD        7.750        7.484           $2,273.39  360       1-Aug-27
6443757   ERIE                        PA       16508        SFD        7.500        7.234           $2,111.63  360       1-Sep-27
6444161   LOS ANGELES                 CA       91436        SFD        7.750        7.484           $1,776.70  360       1-Aug-27
6445073   SOUTH OGDEN                 UT       84403        SFD        7.750        7.484           $1,628.05  360       1-Aug-27
6445087   CLAREMONT                   CA       91711        SFD        8.000        7.734           $1,907.79  360       1-Aug-27
6445214   FRIDAY HARBOR               WA       98250        SFD        8.000        7.734           $2,458.11  360       1-Aug-27
6445301   JACKSON                     TN       38305        SFD        8.000        7.734             $587.01  360       1-Aug-27
6445310   BONITA                      CA       91902        SFD        7.875        7.609           $1,682.16  360       1-Sep-27
6445313   ALEXANDRIA                  VA       22307        PUD        7.250        6.984           $1,500.79  360       1-Aug-27
6445904   ENGLEWOOD                   CO       80111        SFD        7.750        7.484           $2,401.41  360       1-Sep-27
6445947   SAN DIEGO                   CA       92130        SFD        7.750        7.484           $3,324.15  360       1-Sep-27
6446162   CHANDLER                    AZ       85226        SFD        8.000        7.734             $901.80  360       1-Sep-27
6446354   YORK                        ME       03909        SFD        8.250        7.984           $1,803.04  360       1-Sep-27
6446598   SUPERIOR                    CO       80027        PUD        7.875        7.609           $1,892.43  360       1-Aug-27
6446779   LA QUINTA                   CA       92253        SFD        7.875        7.609           $3,196.11  360       1-Sep-27
6446995   SAN JOSE                    CA       95138        SFD        7.750        7.484           $2,148.52  360       1-Aug-27
6447169   PHOENIX                     AZ       85016        SFD        7.625        7.359           $1,613.77  360       1-Sep-27
6447307   ALPINE                      CA       91901        SFD        7.625        7.359           $2,436.58  360       1-Aug-27
6448040   WEST LINN                   OR       97068        SFD        7.625        7.359           $2,916.11  360       1-Sep-27
6448132   NEWBURY PARK                CA       91320        SFD        8.250        7.984           $2,367.24  360       1-Sep-27
6448616   BELLINGHAM                  WA       98226        SFD        7.500        7.234           $2,334.68  360       1-Sep-27
6450017   FOUNTAIN VALLEY             CA       92708        SFD        7.875        7.609           $1,618.72  360       1-Sep-27
6450106   MORRISTOWN                  TN       37814        SFD        7.625        7.359           $1,698.70  360       1-Sep-27
6450200   LA QUINTA                   CA       92253        SFD        7.875        7.609           $1,087.60  360       1-Sep-27
6452241   OCEAN TWP                   NJ       07712        SFD        7.625        7.359             $460.07  360       1-Sep-27
6452541   OXNARD                      CA       93035        SFD        7.750        7.484           $1,934.31  360       1-Sep-27
6452815   MISSION VIEJO               CA       92692        PUD        7.500        7.234           $1,758.17  360       1-Sep-27
6452824   ENGLEWOOD                   CO       80111        SFD        7.500        7.234           $1,922.84  360       1-Sep-27
6452898   EDEN PRAIRIE                MN       55347        SFD        8.000        7.734           $3,111.16  360       1-Sep-27
6453000   ANNANDALE                   VA       22003        SFD        8.125        7.859           $2,394.55  360       1-Sep-27
6453090   CORONADO                    CA       92118        SFD        8.000        7.734           $2,935.06  360       1-Sep-27
6453287   RANDOLPH                    NJ       07869        SFD        7.875        7.609           $2,050.50  360       1-Sep-27
6453423   SAUGUS                      CA       91350        SFD        8.000        7.734           $1,934.94  360       1-Sep-27
6453449   WILMINGTON                  DE       19803        SFD        7.875        7.609           $2,320.22  360       1-Sep-27
6454341   AURORA                      CO       80014        SFD        7.875        7.609           $1,621.98  360       1-Aug-27
6455208   BASALT                      CO       81621        SFD        8.000        7.734           $1,956.22  360       1-Sep-27
6455274   DENVER                      CO       80220        SFD        8.125        7.859           $2,294.69  360       1-Sep-27
6455983   ANAHEIM                     CA       92808        SFD        7.625        7.359           $2,492.85  360       1-Sep-27
6456043   ROSWELL                     GA       30076        SFD        7.750        7.484           $1,912.82  360       1-Sep-27
6456290   EDWARDSVILLE                IL       62025        PUD        7.875        7.609           $3,103.30  360       1-Aug-27
6456699   MISSION VIEJO               CA       92692        SFD        7.625        7.359           $2,434.81  360       1-Sep-27
6456828   TACOMA                      WA       98403        HCO        8.000        7.734           $1,386.82  360       1-Sep-27
6456839   WEST NEWTON                 MA       02165        SFD        8.125        7.859           $1,737.44  360       1-Sep-27
6456873   MEDFORD                     MA       02155        SFD        8.125        7.859           $1,829.51  360       1-Sep-27
6457077   CONIFER                     CO       80443        SFD        7.750        7.484           $1,611.93  360       1-Sep-27
6457201   STOWE                       VT       05672        SFD        7.250        6.984           $1,671.33  360       1-Sep-27
6457444   SAN DIEGO                   CA       92130        SFD        7.875        7.609           $2,407.23  360       1-Sep-27
6457800   HOUSTON                     TX       77056        SFD        7.875        7.609           $2,024.39  360       1-Sep-27
6457930   OMAHA                       NE       68116        SFD        7.750        7.484           $2,192.22  360       1-Sep-27
6458515   SAN JOSE                    CA       95138        SFD        7.750        7.484           $1,862.67  360       1-Sep-27
6459201   SAN DIEGO                   CA       92128        SFD        8.000        7.734           $3,345.97  360       1-Sep-27
6459487   ORANGE                      CA       92867        SFD        7.500        7.234           $1,713.08  360       1-Sep-27
6459683   CONIFER                     CO       80433        SFD        7.875        7.609           $2,193.26  360       1-Aug-27
6459809   ASHTON                      MD       20861        SFD        7.750        7.484           $1,816.82  360       1-Sep-27
6460141   SANTA ANA                   CA       92705        SFD        7.875        7.609           $3,654.35  360       1-Sep-27
6460142   ARLINGTON HEIGHTS           IL       60004        SFD        8.250        7.984           $2,028.42  360       1-Sep-27
6460476   SAN JUAN CAPISTRA           CA       92675        SFD        7.875        7.609           $2,791.88  360       1-Aug-27
6460494   LEESBURG                    VA       20175        SFD        7.625        7.359           $1,722.77  360       1-Sep-27
6461033   SAN JOSE                    CA       95132        SFD        8.000        7.734           $2,003.91  360       1-Sep-27
6462088   FREMONT                     CA       94539        PUD        8.125        7.859           $2,209.67  360       1-Sep-27
6462173   FORT COLLINS                CO       80526        SFD        8.500        8.234           $1,931.36  360       1-Sep-27
6462829   ROWLAND HEIGHTS             CA       91748        SFD        7.750        7.484           $2,063.27  360       1-Sep-27
6462941   CORONADO                    CA       92118        HCO        8.250        7.984           $2,392.03  360       1-Sep-27
6463773   CLIVE                       IA          50325     SFD        7.875        7.609           $2,087.62  360       1-Sep-27
6464102   KELLER                      TX          76248     SFD        7.875        7.609           $1,859.80  360       1-Sep-27
6465059   SAN DIEGO                   CA          92106     SFD        7.875        7.609           $4,096.64  360       1-Sep-27
6465562   FREMONT                     CA          94536     SFD        7.625        7.359           $2,457.11  360       1-Sep-27
6465599   CHAPEL HILL                 NC          27516     SFD        8.000        7.734           $1,724.35  360       1-Sep-27
6466549   CHINO HILLS                 CA          91719     SFD        7.625        7.359           $1,750.73  360       1-Sep-27
6466752   COVINA AREA                 CA          91724     SFD        7.750        7.484           $2,173.24  360       1-Sep-27
6466984   FLOWER MOUND                TX          75028     SFD        7.750        7.484           $1,563.05  360       1-Sep-27
6467036   MINNETONKA                  MN          55305     SFD        7.750        7.484           $2,070.79  360       1-Sep-27
6467233   CORONADO                    CA          92118     SFD        7.875        7.609           $5,302.07  360       1-Sep-27
6467818   FREMONT                     CA          94536     SFD        7.750        7.484           $2,367.74  360       1-Sep-27
6467868   PASO ROBLES                 CA          93446     SFD        8.000        7.734           $1,188.70  360       1-Sep-27
6467882   SALT LAKE CITY              UT          84121     SFD        7.875        7.609           $1,631.41  360       1-Sep-27
6467937   CAMARILLO                   CA          93012     SFD        7.500        7.234           $2,447.25  360       1-Sep-27
6468036   BIG LAKE                    MN          55309     SFD        7.500        7.234           $1,810.97  360       1-Sep-27
6468432   HOFFMAN ESTATES             IL          60195     SFD        8.000        7.734           $1,783.05  360       1-Sep-27
6468511   WASHINGTON                  DC          20009     SFD        7.750        7.484           $2,579.08  360       1-Sep-27
6468530   GAITHERSBURG                MD          20879     SFD        7.500        7.234           $2,097.64  360       1-Sep-27
6469359   SANTA CRUZ                  CA          95060     SFD        8.000        7.734           $3,008.43  360       1-Sep-27
6469536   LIVERMORE                   CA          94550     SFD        7.375        7.109           $2,624.57  360       1-Sep-27
6470105   PORTLAND                    OR          97201     SFD        7.875        7.609           $2,117.20  360       1-Sep-27
6470162   YORBA LINDA                 CA          92886     SFD        7.625        7.359           $2,123.38  360       1-Sep-27
6470626   AVALON                      NJ          08202     SFD        7.500        7.234           $1,957.80  360       1-Sep-27
6470821   BETHESDA                    MD          20814     SFD        7.625        7.359           $1,840.26  360       1-Sep-27
6471729   OREM                        UT          84057     SFD        8.000        7.734           $1,207.04  360       1-Sep-27
6471902   MONUMENT                    CO          80132     SFD        7.875        7.609           $1,716.96  360       1-Sep-27
6471952   PARKER                      CO          80134     SFD        8.625        8.359           $1,737.82  360       1-Sep-27
6472280   CORONADO                    CA          92118     LCO        8.000        7.734           $1,937.14  360       1-Sep-27
6472390   RENO                        NV          89511     SFD        7.750        7.484           $1,837.60  360       1-Sep-27
6472733   PLYMOUTH                    MN          55446     SFD        7.875        7.609           $2,107.05  360       1-Sep-27
6473146   BILLINGS                    MT          59106     SFD        7.750        7.484           $2,865.65  360       1-Sep-27
6473271   MAMMOTH LAKES               CA          93546     LCO        8.500        8.234             $686.26  360       1-Sep-27
6473322   ROLLING HILLS               CA          90274     SFD        8.000        7.734           $2,714.93  360       1-Sep-27
6474248   FREMONT                     CA          94538     SFD        8.125        7.859           $1,692.89  360       1-Sep-27
6474397   PARADISE VALLEY             AZ          85253     SFD        8.250        7.984           $3,425.78  360       1-Sep-27
6474800   OCEAN CITY                  NJ          08226     LCO        8.000        7.734           $2,348.05  360       1-Sep-27
6475314   KIRKLAND                    WA          98033     SFD        7.875        7.609           $1,729.29  360       1-Sep-27
6475559   PARKER                      CO          80134     SFD        8.000        7.734           $1,188.70  360       1-Sep-27
6475791   PLEASANTON                  CA          94566     SFD        7.500        7.234           $1,996.96  360       1-Sep-27
6477013   LAS VEGAS                   NV          89120     PUD        8.125        7.859           $3,430.34  360       1-Sep-27
6478557   BOULDER                     CO          80302     SFD        7.500        7.234           $3,598.72  360       1-Sep-27
6478664   MINNETONKA                  MN          55345     SFD        7.875        7.609           $1,796.72  360       1-Sep-27
6478966   SIMI VALLEY                 CA          93065     SFD        7.750        7.484           $1,759.51  360       1-Sep-27
6479009   MINNEAPOLIS                 MN          55405     SFD        7.875        7.609           $3,625.35  360       1-Sep-27
6479390   DUMONT                      NJ          07628     LCO        8.625        8.359             $381.12  360       1-Sep-27
6480072   LEXINGTON                   MA          02173     SFD        8.000        7.734           $3,301.94  360       1-Sep-27
6481288   DELANO                      MN          55328     SFD        8.125        7.859           $2,167.35  360       1-Sep-27
6482845   SMYRNA                      GA          30126     PUD        7.875        7.609           $2,182.10  360       1-Sep-27
6485807   VAIL                        CO          81657     SFD        8.000        7.734           $1,834.41  360       1-Sep-27
6486409   FREMONT                     CA          94539     SFD        8.000        7.734           $2,039.87  360       1-Sep-27
6489829   GARDNERVILLE                NV          89410     SFD        7.875        7.609           $2,356.48  360       1-Oct-27
6489912   ALTON                       NH          03809     SFD        7.500        7.234           $1,817.96  360       1-Sep-27
6491276   ENCINO AREA                 CA          91436     SFD        7.875        7.609           $1,957.69  360       1-Sep-27
6492239   SAN JOSE                    CA          95148     SFD        7.750        7.484           $2,023.86  360       1-Sep-27
6493671   EDEN PRAIRIE                MN          55347     SFD        7.750        7.484           $3,202.36  360       1-Sep-27
6494539   IRVINE                      CA          92606     SFD        7.875        7.609           $1,893.16  360       1-Sep-27
6495737   MENDOTA HEIGHTS             MN          55118     SFD        8.125        7.859           $2,489.00  360       1-Sep-27
6496990   SAN JOSE                    CA          95138     SFD        8.000        7.734           $3,081.81  360       1-Oct-27
6497477   CRESTVIEW HILLS             KY          41017     PUD        8.000        7.734           $2,149.93  360       1-Oct-27
6498352   SAN DIEGO                   CA          92130     SFD        8.000        7.734           $2,366.39  360       1-Oct-27
6505933   WATERFORD TWP               NJ          08004     PUD        8.000        7.734             $410.91  360       1-Oct-27
</TABLE>


COUNT:                              783
WAC:                                  7.948625969
WAM:                                357.8704394
WALTV:                               76.43769695
<PAGE>
<TABLE>
<CAPTION>
                 CUT-OFF
 MORTGAGE          DATE                              MORTGAGE               T.O.P.     MASTER
   LOAN         PRINCIPAL                            INSURANCE   SERVICE   MORTGAGE    SERVICE
  NUMBER         BALANCE           LTV      SUBSIDY    CODE        FEE       LOAN        FEE
  ------         -------           ---      -------    ----        ---       ----        ---

<S>            <C>                <C>       <C>        <C>         <C>      <C>          <C>  
  3585487      $174,658.73        80.00                           0.250                 0.016
  4488040      $247,530.54        80.00                           0.250                 0.016
  4509818      $224,438.91        70.00                           0.250                 0.016
  4532267      $273,602.10        79.88                           0.250                 0.016
  4534661      $120,442.62        80.00                           0.250                 0.016
  4536069      $246,087.16        75.00                           0.250                 0.016
  4540376      $350,340.91        90.00                 01        0.250                 0.016
  4545452      $914,080.37        65.00                           0.250                 0.016
  4552821      $271,817.49        80.00                           0.250                 0.016
  4553140      $354,609.62        63.41                           0.250                 0.016
  4557854       $48,429.04        75.00                           0.250                 0.016
  4557931      $368,947.52        79.57                           0.250                 0.016
  4564300      $286,700.00        39.54                           0.250                 0.016
  4565624      $376,472.28        79.67                           0.250                 0.016
  4569730      $240,895.18        94.98                 13        0.250                 0.016
  4569751      $180,550.32        76.67                           0.250                 0.016
  4570407      $278,348.15        80.00                           0.250                 0.016
  4571431      $999,378.45        54.05                           0.250                 0.016
  4575909      $289,624.25        72.50                           0.250                 0.016
  4576353      $249,819.05        53.19                           0.250                 0.016
  4577528      $236,532.94        95.00                 06        0.250                 0.016
  4577824      $499,647.11        74.63                           0.250                 0.016
  4578129      $239,513.66        75.00                           0.250                 0.016
  4579140      $260,650.00        77.81                           0.250                 0.016
  4580457      $124,716.55        55.56                           0.250                 0.016
  4581715      $458,784.09        79.58                           0.250                 0.016
  4582593      $336,000.00        80.00                           0.250                 0.016
  4583539      $299,392.07        78.76                           0.250                 0.016
  4583582      $288,661.06        79.80                           0.250                 0.016
  4584794      $239,576.48        90.00                 11        0.250                 0.016
  4586337      $349,759.14        60.06                           0.250                 0.016
  4589378      $228,854.68        58.23                           0.250                 0.016
  4589599      $259,042.58        81.76                           0.250                 0.016
  4590418      $229,915.66        89.98                 13        0.250                 0.016
  4591101      $461,401.47        85.00                 01        0.250                 0.016
  4591686      $271,460.94        90.00                 06        0.250                 0.016
  4591878      $227,035.56        95.00                 01        0.250                 0.016
  4592665      $285,000.00        60.64                           0.250                 0.016
  4594848      $283,328.25        90.00                 06        0.250                 0.016
  4594939      $235,299.86        94.99                 06        0.250                 0.016
  4595636      $360,000.00        89.41                           0.250                 0.016
  4597057      $394,728.16        73.13                           0.250                 0.016
  4597971      $242,000.00        78.19                           0.250                 0.016
  4599148      $286,992.13        80.00                           0.250                 0.016
  4599206      $239,722.03        95.00                 11        0.250                 0.016
  4599240      $313,148.75        56.68                           0.250                 0.016
  4599364      $323,782.60        90.00                 06        0.250                 0.016
  4599561      $147,903.18        80.00                           0.250                 0.016
  4599585      $415,425.54        80.00                           0.250                 0.016
  4600278      $279,259.86        80.00                           0.250                 0.016
  4600745      $119,049.37        74.95                           0.250                 0.016
  4601129      $270,988.43        80.00                           0.250                 0.016
  4601304      $110,608.80        80.00                           0.250                 0.016
  4601378      $249,840.58        69.44                           0.250                 0.016
  4601392      $235,645.75        90.00                           0.250                 0.016
  4601728      $239,680.72        76.04                           0.250                 0.016
  4602114      $365,600.00        80.00                           0.250                 0.016
  4602680      $309,402.87        61.26                           0.250                 0.016
  4604217      $239,247.34        90.00                 11        0.250                 0.016
  4604458      $226,847.69        94.98                 11        0.250                 0.016
  4604496      $395,734.29        80.00                           0.250                 0.016
  4604574      $299,782.86        59.06                           0.250                 0.016
  4605018      $349,325.82        79.55                           0.250                 0.016
  4605383      $304,000.00        80.00                           0.250                 0.016
  4605433      $347,169.26        80.00                           0.250                 0.016
  4605677      $229,468.30        92.00                 06        0.250                 0.016
  4606028      $287,399.42        89.99                           0.250                 0.016
  4606049      $106,605.37        80.00                           0.250                 0.016
  4606263      $352,512.53        79.33                           0.250                 0.016
  4607238      $148,000.00        80.00                           0.250                 0.016
  4607918       $90,824.69        70.00                           0.250                 0.016
  4608143      $213,863.54        79.55                           0.250                 0.016
  4608189      $376,491.71        80.00                           0.250                 0.016
  4608551      $249,440.84        78.78                           0.250                 0.016
  4608629      $299,527.58        90.00                 11        0.250                 0.016
  4608651      $227,834.98        80.00                           0.250                 0.016
  4608989      $360,850.00        76.45                           0.250                 0.016
  4609147      $229,069.05        90.00                           0.250                 0.016
  4609487      $331,120.58        76.32                           0.250                 0.016
  4609925      $223,124.84        95.00                           0.250                 0.016
  4610018      $223,451.40        84.21                 01        0.250                 0.016
  4610064      $225,402.60        80.00                           0.250                 0.016
  4610268      $239,834.83        68.18                           0.250                 0.016
  4610842      $224,544.06        90.00                 06        0.250                 0.016
  4610940      $287,612.23        80.00                           0.250                 0.016
  4611073      $303,196.47        80.00                           0.250                 0.016
  4611525      $248,864.45        73.29                           0.250                 0.016
  4611605      $226,248.09        80.00                           0.250                 0.016
  4611630       $95,000.00        71.43                           0.250                 0.016
  4611814      $262,823.52        78.51                           0.250                 0.016
  4612015      $223,668.35        90.00                 11        0.250                 0.016
  4612268      $124,210.37        75.00                           0.250                 0.016
  4612314      $252,646.85        79.99                           0.250                 0.016
  4612324       $43,445.73        59.18                           0.250                 0.016
  4612337      $386,733.67        90.00                 01        0.250                 0.016
  4612757      $349,771.05        78.83                           0.250                 0.016
  4612900      $237,945.10        90.00                 01        0.250                 0.016
  4613123      $239,834.83        75.12                           0.250                 0.016
  4613137      $270,803.01        85.00                 06        0.250                 0.016
  4613138      $300,000.00        64.81                           0.250                 0.016
  4613264      $227,366.15        80.00                           0.250                 0.016
  4613408      $259,816.49        72.22                           0.250                 0.016
  4613536       $58,000.00        80.00                           0.250                 0.016
  4613651      $217,589.83        89.94                 01        0.250                 0.016
  4613951      $229,371.87        86.79                 01        0.250                 0.016
  4614311      $231,679.63        80.00                           0.250                 0.016
  4614397      $274,643.12        88.85                 06        0.250                 0.016
  4614428      $379,745.03        62.81                           0.250                 0.016
  4614460      $299,246.28        80.00                           0.250                 0.016
  4614577      $284,451.04        95.00                 06        0.250                 0.016
  4614914      $229,997.68        86.91                 01        0.250                 0.016
  4615138      $219,638.53        79.59                           0.250                 0.016
  4615236      $174,879.56        50.00                           0.250                 0.016
  4615447      $320,771.22        79.41                           0.250                 0.016
  4615618      $395,530.72        90.00                           0.250                 0.016
  4615658      $249,636.97        48.39                           0.250                 0.016
  4615923      $256,618.75        88.25                 06        0.250                 0.016
  4616207      $498,860.27        77.06                           0.250                 0.016
  4616241      $249,182.68        94.99                 06        0.250                 0.016
  4616486      $247,791.65        80.00                           0.250                 0.016
  4616584      $239,838.96        80.00                           0.250                 0.016
  4616985      $126,914.79        71.75                           0.250                 0.016
  4617212      $127,836.20        80.00                           0.250                 0.016
  4617310      $408,482.62        75.00                           0.250                 0.016
  4617328      $239,278.45        80.00                           0.250                 0.016
  4617639      $290,000.00        49.15                           0.250                 0.016
  4617685      $292,000.00        80.00                           0.250                 0.016
  4617964      $112,000.00        80.00                           0.250                 0.016
  4618151      $349,552.09        70.35                           0.250                 0.016
  4618172      $270,213.91        80.00                           0.250                 0.016
  4618467      $319,569.13        80.00                           0.250                 0.016
  4618503      $495,708.62        57.00                           0.250                 0.016
  4618603      $233,838.96        90.00                 06        0.250                 0.016
  4618627      $259,141.64        65.70                           0.250                 0.016
  4618828      $598,784.16        75.00                           0.250                 0.016
  4618865      $439,689.45        80.00                           0.250                 0.016
  4618870      $253,811.49        75.82                           0.250                 0.016
  4619315       $89,835.24        79.65                           0.250                 0.016
  4619368      $107,531.39        80.00                           0.250                 0.016
  4619500      $223,690.67        70.00                           0.250                 0.016
  4619678      $241,760.51        95.00                 17        0.250                 0.016
  4619779      $383,748.81        80.00                           0.250                 0.016
  4620086      $399,724.72        40.40                           0.250                 0.016
  4620430      $238,000.00        73.91                           0.250                 0.016
  4620770      $290,609.77        89.98                 24        0.250                 0.016
  4620998      $223,046.39        90.00                 01        0.250                 0.016
  4621359      $399,731.61        80.00                           0.250                 0.016
  4621451      $360,000.00        84.71                 06        0.250                 0.016
  4621760       $81,593.81        69.99                           0.250                 0.016
  4622132      $297,189.04        80.00                           0.250                 0.016
  4622178      $215,851.35        80.00                           0.250                 0.016
  4622414      $239,834.83        76.19                           0.250                 0.016
  4622658      $219,852.38        80.00                           0.250                 0.016
  4622698      $308,000.00        70.00                           0.250                 0.016
  4622709      $255,337.08        94.98                 11        0.250                 0.016
  4622787      $285,225.09        80.00                           0.250                 0.016
  4623134      $293,003.27        80.00                           0.250                 0.016
  4623354      $168,645.10        75.00                           0.250                 0.016
  4623371      $239,830.61        80.00                           0.250                 0.016
  4623477      $125,018.17        66.19                           0.250                 0.016
  4623479      $357,015.35        79.43                           0.250                 0.016
  4623543      $263,200.00        80.00                           0.250                 0.016
  4623553      $219,703.76        80.00                           0.250                 0.016
  4623602      $310,000.00        74.70                           0.250                 0.016
  4623645      $235,665.79        78.67                           0.250                 0.016
  4623719      $350,000.00        75.66                           0.250                 0.016
  4623725      $405,000.00        61.83                           0.250                 0.016
  4623766      $221,427.14        80.00                           0.250                 0.016
  4623904      $399,717.68        77.22                           0.250                 0.016
  4623955      $289,599.53        63.04                           0.250                 0.016
  4624021       $91,214.01        61.82                           0.250                 0.016
  4624055      $322,653.82        90.00                 11        0.250                 0.016
  4624120      $254,224.92        80.00                           0.250                 0.016
  4624146      $235,700.00        90.00                 01        0.250                 0.016
  4624429      $229,845.67        75.41                           0.250                 0.016
  4624936      $396,000.00        80.00                           0.250                 0.016
  4624954      $345,647.33        80.00                           0.250                 0.016
  4624983      $415,000.00        51.88                           0.250                 0.016
  4625025      $300,000.00        78.95                           0.250                 0.016
  4625367      $224,837.15        69.23                           0.250                 0.016
  4625372      $145,600.00        80.00                           0.250                 0.016
  4625428      $323,671.39        90.00                 06        0.250                 0.016
  4625445      $232,827.08        88.59                 06        0.250                 0.016
  4625483      $388,225.80        70.00                           0.250                 0.016
  4625599      $244,000.00        67.78                           0.250                 0.016
  4625617      $386,490.50        65.00                           0.250                 0.016
  4625768      $291,596.76        80.00                           0.250                 0.016
  4625887      $450,000.00        72.58                           0.250                 0.016
  4626062      $250,670.50        62.75                           0.250                 0.016
  4626189      $293,781.92        79.62                           0.250                 0.016
  4626228      $420,000.00        68.85                           0.250                 0.016
  4626275      $368,550.00        90.00                           0.250                 0.016
  4626418      $299,360.00        63.02                           0.250                 0.016
  4626506      $134,400.00        80.00                           0.250                 0.016
  4626557      $365,128.82        69.47                           0.250                 0.016
  4626600      $224,852.82        78.95                           0.250                 0.016
  4626664      $102,334.70        80.00                           0.250                 0.016
  4626668      $273,991.36        79.99                           0.250                 0.016
  4626758      $245,000.00        70.00                           0.250                 0.016
  4626787      $308,287.69        70.11                           0.250                 0.016
  4626790      $269,794.56        90.00                 17        0.250                 0.016
  4626931      $249,600.00        80.00                           0.250                 0.016
  4627059      $247,824.97        72.94                           0.250                 0.016
  4627175      $243,040.92        80.00                           0.250                 0.016
  4627294      $237,844.32        79.87                           0.250                 0.016
  4627324      $300,000.00        74.07                           0.250                 0.016
  4627454      $412,230.16        75.00                           0.250                 0.016
  4627457      $267,483.77        80.00                           0.250                 0.016
  4627465      $295,353.20        80.00                           0.250                 0.016
  4627474      $171,895.79        80.00                           0.250                 0.016
  4627638      $249,823.55        52.63                           0.250                 0.016
  4627645      $298,850.00        79.99                           0.250                 0.016
  4627703      $179,493.96        80.00                           0.250                 0.016
  4627812      $239,830.61        41.74                           0.250                 0.016
  4627859      $174,888.41        67.31                           0.250                 0.016
  4627884       $75,546.64        80.00                           0.250                 0.016
  4627969      $257,731.29        89.99                           0.250                 0.016
  4628030      $277,808.68        89.68                 06        0.250                 0.016
  4628217      $223,833.76        80.00                           0.250                 0.016
  4628317      $230,000.00        69.70                           0.250                 0.016
  4628353      $258,043.17        80.00                           0.250                 0.016
  4628531      $160,000.00        80.00                           0.250                 0.016
  4628688      $500,000.00        53.36                           0.250                 0.016
  4628702      $138,000.00        70.77                           0.250                 0.016
  4628919      $356,554.45        80.00                           0.250                 0.016
  4628956      $391,435.58        79.98                           0.250                 0.016
  4628966      $290,400.00        89.97                           0.250                 0.016
  4629264      $287,811.60        78.26                           0.250                 0.016
  4629268      $318,136.04        80.00                           0.250                 0.016
  4629344      $325,775.65        70.87                           0.250                 0.016
  4629476      $200,000.00        80.00                           0.250                 0.016
  4629605      $233,834.84        60.00                           0.250                 0.016
  4629607      $295,796.29        74.00                           0.250                 0.016
  4629625      $143,000.00        65.00                           0.250                 0.016
  4629657      $241,229.62        89.96                 11        0.250                 0.016
  4629689      $255,844.91        80.00                           0.250                 0.016
  4629720      $222,457.60        75.00                           0.250                 0.016
  4629989      $261,000.00        69.99                           0.250                 0.016
  4630006      $235,000.00        79.66                           0.250                 0.016
  4630090       $92,169.28        65.98                           0.250                 0.016
  4630108      $167,090.62        80.00                           0.250                 0.016
  4630146      $332,565.11        80.00                           0.250                 0.016
  4630287      $317,786.62        80.00                           0.250                 0.016
  4630305       $87,091.48        80.00                           0.250                 0.016
  4630318      $262,900.00        94.99                 01        0.250                 0.016
  4630350      $329,000.00        70.00                           0.250                 0.016
  4630387      $144,905.15        35.80                           0.250                 0.016
  4630417      $283,500.00        90.00                           0.250                 0.016
  4630573      $231,848.23        79.73                           0.250                 0.016
  4630634      $187,886.11        80.00                           0.250                 0.016
  4630678      $310,000.00        56.36                           0.250                 0.016
  4630684      $224,852.82        90.00                 11        0.250                 0.016
  4630780      $382,249.78        75.00                           0.250                 0.016
  4630833      $168,000.00        79.92                           0.250                 0.016
  4630834      $300,000.00        68.97                           0.250                 0.016
  4630938      $220,717.19        63.87                           0.250                 0.016
  4631046      $305,778.53        90.00                 06        0.250                 0.016
  4631101      $499,605.94        68.02                           0.250                 0.016
  4631164      $335,052.06        90.00                 06        0.250                 0.016
  4631208      $237,979.14        79.43                           0.250                 0.016
  4631247      $299,515.97        61.22                           0.250                 0.016
  4631259      $305,937.51        80.00                           0.250                 0.016
  4631335      $287,801.80        62.61                           0.250                 0.016
  4631480      $266,631.29        83.70                 01        0.250                 0.016
  4631489      $359,490.20        80.00                           0.250                 0.016
  4631494      $415,963.53        75.00                           0.250                 0.016
  4631583      $280,000.00        73.68                           0.250                 0.016
  4631678      $232,847.59        70.61                           0.250                 0.016
  4631716      $344,235.88        90.00                 06        0.250                 0.016
  4631737      $291,956.97        90.00                 01        0.250                 0.016
  4631746      $176,018.64        75.00                           0.250                 0.016
  4631760      $249,688.14        71.43                           0.250                 0.016
  4631766       $83,943.63        80.00                           0.250                 0.016
  4631769      $259,558.71        76.13                           0.250                 0.016
  4631777      $389,200.00        80.00                           0.250                 0.016
  4631782      $229,342.06        90.00                 06        0.250                 0.016
  4631783      $262,643.12        95.00                 06        0.250                 0.016
  4631848      $212,000.00        80.00                           0.250                 0.016
  4631923      $450,000.00        57.70                           0.250                 0.016
  4631937      $536,700.00        69.70                           0.250                 0.016
  4631944      $425,000.00        53.13                           0.250                 0.016
  4632033      $263,727.38        79.99                           0.250                 0.016
  4632230      $434,715.45        66.41                           0.250                 0.016
  4632237      $234,853.93        79.93                           0.250                 0.016
  4632357      $525,000.00        52.50                           0.250                 0.016
  4632405      $216,711.71        90.00                 06        0.250                 0.016
  4632433      $300,000.00        73.26                           0.250                 0.016
  4632462      $274,810.75        77.46                           0.250                 0.016
  4632502      $286,597.57        89.98                           0.250                 0.016
  4632504      $132,915.19        80.00                           0.250                 0.016
  4632662      $228,302.57        88.46                 13        0.250                 0.016
  4632752      $373,304.39        89.99                 13        0.250                 0.016
  4632868      $229,845.67        60.53                           0.250                 0.016
  4633008      $295,000.00        79.30                           0.250                 0.016
  4633065      $248,000.00        80.00                           0.250                 0.016
  4633197      $300,000.00        72.61                           0.250                 0.016
  4633234      $755,000.00        59.73                           0.250                 0.016
  4633243      $345,262.23        89.99                 06        0.250                 0.016
  4633326      $416,051.46        66.14                           0.250                 0.016
  4633338      $215,415.45        95.00                 13        0.250                 0.016
  4633692       $99,929.41        40.82                           0.250                 0.016
  4633757      $190,000.00        65.52                           0.250                 0.016
  4633807      $249,278.94        77.83                           0.250                 0.016
  4633968      $450,000.00        64.29                           0.250                 0.016
  4633974       $71,452.02        65.00                           0.250                 0.016
  4634007      $288,000.00        80.00                           0.250                 0.016
  4634049      $219,859.71        80.00                           0.250                 0.016
  4634243      $251,000.00        55.04                           0.250                 0.016
  4634320      $249,432.52        80.00                           0.250                 0.016
  4634362      $229,667.53        80.00                           0.250                 0.016
  4634391      $236,313.24        95.00                 06        0.250                 0.016
  4634409      $340,453.15        95.00                 06        0.250                 0.016
  4634427      $221,013.82        90.00                 06        0.250                 0.016
  4634434      $249,287.34        71.43                           0.250                 0.016
  4634436      $271,603.28        90.00                 11        0.250                 0.016
  4634452      $241,466.09        80.00                           0.250                 0.016
  4634551      $290,000.00        80.00                           0.250                 0.016
  4634657      $613,845.22        79.87                           0.250                 0.016
  4634704      $235,845.63        80.00                           0.250                 0.016
  4634753      $275,795.17        80.00                           0.250                 0.016
  4634801      $216,854.40        66.16                           0.250                 0.016
  4634902      $229,034.12        80.00                           0.250                 0.016
  4634921      $239,668.58        70.59                           0.250                 0.016
  4634990      $176,000.00        80.00                           0.250                 0.016
  4635034      $132,906.13        70.00                           0.250                 0.016
  4635093      $249,586.63        80.00                           0.250                 0.016
  4635097      $415,712.69        78.49                           0.250                 0.016
  4635100      $400,000.00        89.89                           0.250                 0.016
  4635148      $359,910.00        90.00                           0.250                 0.016
  4635180      $229,333.89        90.00                 06        0.250                 0.016
  4635254      $231,000.00        73.33                           0.250                 0.016
  4635301      $370,713.33        80.00                           0.250                 0.016
  4635412      $278,000.00        74.93                           0.250                 0.016
  4635442      $459,894.77        77.00                           0.250                 0.016
  4635453      $235,391.80        80.00                           0.250                 0.016
  4635476      $479,669.67        58.18                           0.250                 0.016
  4635485      $105,000.00        77.78                           0.250                 0.016
  4635495      $366,318.35        80.00                           0.250                 0.016
  4635537      $505,972.10        80.00                           0.250                 0.016
  4635554      $134,920.29        75.00                           0.250                 0.016
  4635668      $284,000.00        80.00                           0.250                 0.016
  4635702      $100,000.00        79.37                           0.250                 0.016
  4635752      $525,000.00        75.00                           0.250                 0.016
  4635886      $157,244.83        75.00                           0.250                 0.016
  4635906      $304,500.00        87.00                 06        0.250                 0.016
  4635927      $360,000.00        80.00     GD 3YR                0.250                 0.016
  4636117      $300,088.05        84.99                 12        0.250                 0.016
  4636126      $329,778.57        78.57                           0.250                 0.016
  4636183      $242,948.90        95.00                 11        0.250                 0.016
  4636229      $298,000.00        78.42                           0.250                 0.016
  4636332      $299,005.42        75.57                           0.250                 0.016
  4636355      $417,740.18        80.00                           0.250                 0.016
  4636367      $266,400.00        90.00                           0.250                 0.016
  4636476      $250,650.00        69.05                           0.250                 0.016
  4636484       $99,932.90        80.00                           0.250                 0.016
  4636495      $145,507.15        80.00                           0.250                 0.016
  4636496      $131,924.05        80.00                           0.250                 0.016
  4636625      $519,651.09        80.00                           0.250                 0.016
  4636806      $400,000.00        80.00                           0.250                 0.016
  4636927      $315,000.00        52.50                           0.250                 0.016
  4636946      $109,130.36        80.00                           0.250                 0.016
  4636965      $223,250.00        92.63                 06        0.250                 0.016
  4637036      $267,833.43        87.01                           0.250                 0.016
  4637037      $439,000.00        69.68                           0.250                 0.016
  4637044      $218,856.75        76.87                           0.250                 0.016
  4637086      $390,038.11        89.99                 06        0.250                 0.016
  4637120      $300,478.77        69.43                           0.250                 0.016
  4637123      $234,439.00        64.38                           0.250                 0.016
  4637129      $248,950.65        50.10                           0.250                 0.016
  4637365      $299,564.34        80.00                           0.250                 0.016
  4637379      $251,502.12        80.00                           0.250                 0.016
  4637388      $289,009.67        76.32                           0.250                 0.016
  4637411      $364,508.53        55.30                           0.250                 0.016
  4637418      $330,941.72        79.99                           0.250                 0.016
  4637480      $300,000.00        60.00                           0.250                 0.016
  4637530      $250,000.00        30.86                           0.250                 0.016
  4637593      $315,000.00        75.00                           0.250                 0.016
  4637746       $79,000.00        58.52                           0.250                 0.016
  4637779      $471,963.66        85.00                 12        0.250                 0.016
  4637890      $185,000.00        77.08                           0.250                 0.016
  4638039      $249,636.97        56.82                           0.250                 0.016
  4638075      $318,750.00        75.00                           0.250                 0.016
  4638119      $241,000.00        60.25                           0.250                 0.016
  4638124      $258,571.93        75.00                           0.250                 0.016
  4638165      $248,068.67        94.72                 13        0.250                 0.016
  4638178      $248,802.05        64.10                           0.250                 0.016
  4638190      $244,000.00        80.00                           0.250                 0.016
  4638200      $229,177.78        76.67                           0.250                 0.016
  4638214      $223,606.10        79.30                           0.250                 0.016
  4638218      $328,948.77        80.00                           0.250                 0.016
  4638230      $232,582.40        90.00                 01        0.250                 0.016
  4638233      $243,663.06        78.71                           0.250                 0.016
  4638245      $428,222.66        80.00                           0.250                 0.016
  4638252      $243,525.26        80.00                           0.250                 0.016
  4638260      $219,447.27        80.00                           0.250                 0.016
  4638265      $232,385.87        94.99                 13        0.250                 0.016
  4638317      $246,850.36        95.00                 06        0.250                 0.016
  4638321      $372,933.49        80.00                           0.250                 0.016
  4638343      $256,445.38        80.00                           0.250                 0.016
  4638363      $479,669.66        80.00                           0.250                 0.016
  4638364      $339,530.48        61.26                           0.250                 0.016
  4638386      $189,878.84        57.58                           0.250                 0.016
  4638456      $245,113.20        71.07                           0.250                 0.016
  4638469       $77,947.66        80.00                           0.250                 0.016
  4638480      $340,200.00        85.00                           0.250                 0.016
  4638486      $239,513.69        72.73                           0.250                 0.016
  4638496      $214,693.40        90.00                 01        0.250                 0.016
  4638618      $249,467.24        56.82                           0.250                 0.016
  4638641      $228,798.09        92.00                 06        0.250                 0.016
  4638729      $220,862.64        85.00                           0.250                 0.016
  4638745      $216,000.00        80.00                           0.250                 0.016
  4638858      $291,499.25        66.30                           0.250                 0.016
  4638869      $248,437.38        78.67                           0.250                 0.016
  4638935      $459,380.64        76.67                           0.250                 0.016
  4639010      $600,000.00        61.54                           0.250                 0.016
  4639079       $75,553.01        60.00                           0.250                 0.016
  4639196      $221,000.00        85.00                 06        0.250                 0.016
  4639213      $172,000.00        80.00                           0.250                 0.016
  4639279      $281,071.22        80.00                           0.250                 0.016
  4639281      $237,030.73        79.17                           0.250                 0.016
  4639283      $249,246.52        80.00                           0.250                 0.016
  4639284      $317,402.88        74.82                           0.250                 0.016
  4639287      $238,028.74        76.94                           0.250                 0.016
  4639288      $332,528.42        78.35                           0.250                 0.016
  4639292      $254,681.89        75.00                           0.250                 0.016
  4639293      $347,945.72        80.00                           0.250                 0.016
  4639294      $228,650.42        54.65                           0.250                 0.016
  4639295      $255,494.19        89.51                 01        0.250                 0.016
  4639299      $249,007.06        61.60                           0.250                 0.016
  4639302      $239,501.24        68.57                           0.250                 0.016
  4639303      $358,902.93        89.99                 01        0.250                 0.016
  4639304      $255,587.53        80.00                           0.250                 0.016
  4639306      $306,597.00        73.98                           0.250                 0.016
  4639307      $313,566.40        71.36                           0.250                 0.016
  4639310      $254,030.57        80.00                           0.250                 0.016
  4639313      $360,468.06        80.00                           0.250                 0.016
  4639319      $232,527.45        66.53                           0.250                 0.016
  4639321      $274,639.00        75.55                           0.250                 0.016
  4639326      $244,144.94        79.99                           0.250                 0.016
  4639334      $499,343.64        67.57                           0.250                 0.016
  4639343      $222,707.27        69.04                           0.250                 0.016
  4639353      $498,879.79        65.36                           0.250                 0.016
  4639360      $288,471.01        64.22                           0.250                 0.016
  4639361      $295,900.00        79.99                           0.250                 0.016
  4639363      $243,480.00        51.91                           0.250                 0.016
  4639364      $268,737.66        90.00                 01        0.250                 0.016
  4639369      $251,286.13        79.87                           0.250                 0.016
  4639375      $423,471.08        47.11                           0.250                 0.016
  4639378      $299,585.73        71.47                           0.250                 0.016
  4639382      $281,509.70        80.00                           0.250                 0.016
  4639383      $244,515.94        73.13                           0.250                 0.016
  4639385      $289,418.19        77.33                           0.250                 0.016
  4639400      $295,601.44        85.30                 12        0.250                 0.016
  4639543      $262,455.07        85.00                 06        0.250                 0.016
  4639624      $229,600.00        80.00                           0.250                 0.016
  4639630      $185,000.00        59.68                           0.250                 0.016
  4639644      $289,750.00        95.00                 12        0.250                 0.016
  4639671      $350,000.00        22.58                           0.250                 0.016
  4639725      $249,832.26        80.00                           0.250                 0.016
  4639768      $248,000.00        84.07                           0.250                 0.016
  4639774      $292,000.00        73.00                           0.250                 0.016
  4639790      $393,750.00        74.86                           0.250                 0.016
  4639847      $238,500.00        90.00                 06        0.250                 0.016
  4639884      $198,758.63        80.00                           0.250                 0.016
  4639898      $401,629.83        69.48                           0.250                 0.016
  4639982      $450,000.00        54.22                           0.250                 0.016
  4640004      $319,000.00        79.95                           0.250                 0.016
  4640321      $250,000.00        74.63                           0.250                 0.016
  4640326       $52,000.00        80.00                           0.250                 0.016
  4640363      $287,801.80        80.00                           0.250                 0.016
  4640557      $111,037.53        80.00                           0.250                 0.016
  4640765      $103,785.45        77.50                           0.250                 0.016
  4640814      $380,000.00        89.94                 13        0.250                 0.016
  4640839      $153,600.00        80.00                           0.250                 0.016
  4640861      $213,456.67        80.00                           0.250                 0.016
  4640992      $268,000.00        68.72                           0.250                 0.016
  4641111      $299,265.28        60.00                           0.250                 0.016
  4641131      $262,188.65        94.99                 06        0.250                 0.016
  4641140      $483,043.73        80.00                           0.250                 0.016
  4641310      $143,700.97        79.99                           0.250                 0.016
  4641400      $107,129.87        80.00                           0.250                 0.016
  4641591      $253,500.00        79.98                           0.250                 0.016
  4641766      $287,816.35        90.00                           0.250                 0.016
  4641821      $300,000.00        80.00                           0.250                 0.016
  4641865      $287,820.99        94.74                 11        0.250                 0.016
  4641963      $297,495.12        90.00                 12        0.250                 0.016
  4642017      $516,000.00        80.00                           0.250                 0.016
  4642213      $325,800.00        90.00                           0.250                 0.016
  4642282      $497,665.85        60.00                           0.250                 0.016
  4642728      $225,000.00        69.98                           0.250                 0.016
  4642837      $233,830.64        80.00                           0.250                 0.016
  4642851      $224,860.15        90.00                           0.250                 0.016
  4642980      $301,500.00        90.00                           0.250                 0.016
  4643204      $393,855.38        80.00                           0.250                 0.016
  4643246      $276,000.00        80.00                           0.250                 0.016
  4643282      $242,000.00        80.00                           0.250                 0.016
  4643393      $239,808.07        80.00                           0.250                 0.016
  4643422      $299,803.75        53.57                           0.250                 0.016
  4643596      $240,000.00        80.00                           0.250                 0.016
  4643667      $282,500.00        50.00                           0.250                 0.016
  4643751      $279,812.12        80.00                           0.250                 0.016
  4643804      $217,600.00        80.00                           0.250                 0.016
  4643830      $165,500.00        79.95                           0.250                 0.016
  4644469      $550,000.00        58.05                           0.250                 0.016
  4644955      $295,885.69        90.00                           0.250                 0.016
  4645077      $271,400.00        69.23                           0.250                 0.016
  4645340      $360,000.00        80.00                           0.250                 0.016
  4645352      $208,000.00        80.00                           0.250                 0.016
  4645507      $185,100.00        75.00                           0.250                 0.016
  4645524      $243,862.78        89.48                 01        0.250                 0.016
  4645739      $289,600.00        80.00                           0.250                 0.016
  4645840      $101,250.00        74.72                           0.250                 0.016
  4645858      $440,000.00        80.00                           0.250                 0.016
  4645948       $99,900.00        79.98                           0.250                 0.016
  4645993      $245,250.00        90.00                           0.250                 0.016
  4646069      $219,844.73        78.57                           0.250                 0.016
  4646095      $500,000.00        70.92                           0.250                 0.016
  4646114      $222,800.00        73.59                           0.250                 0.016
  4646142      $391,701.72        78.40                           0.250                 0.016
  4646171       $62,800.00        80.00                           0.250                 0.016
  4646555      $294,400.00        80.00                           0.250                 0.016
  4646570       $59,500.00        70.00                           0.250                 0.016
  4646616      $434,414.30        76.32                           0.250                 0.016
  4646617      $307,585.29        80.00                           0.250                 0.016
  4646625      $235,657.28        80.00                           0.250                 0.016
  4646628      $232,048.11        48.88                           0.250                 0.016
  4646629      $237,130.58        80.00                           0.250                 0.016
  4646630      $295,611.45        78.72                           0.250                 0.016
  4646632      $220,687.04        70.16                           0.250                 0.016
  4646633      $319,285.62        90.00                 12        0.250                 0.016
  4646635      $243,654.46        80.00                           0.250                 0.016
  4646636      $227,347.35        50.00                           0.250                 0.016
  4646640      $274,795.91        63.95                           0.250                 0.016
  4646641      $248,855.87        80.00                           0.250                 0.016
  4646670      $324,758.80        62.50                           0.250                 0.016
  4646681      $299,585.73        80.00                           0.250                 0.016
  4646686      $243,827.79        80.00                           0.250                 0.016
  4646687      $315,782.53        66.25                           0.250                 0.016
  4646694      $249,836.46        66.10                           0.250                 0.016
  4646696      $307,793.34        67.69                           0.250                 0.016
  4646701      $268,809.07        44.20                           0.250                 0.016
  4646711      $471,090.84        80.00                           0.250                 0.016
  4646786      $139,500.00        75.00                           0.250                 0.016
  4646966      $116,950.00        74.99                           0.250                 0.016
  4647257      $300,751.53        70.54                           0.250                 0.016
  4647261      $321,954.79        80.00                           0.250                 0.016
  4647271      $259,017.05        80.00                           0.250                 0.016
  4647273      $259,631.82        80.00                           0.250                 0.016
  4647289      $244,144.94        79.98                           0.250                 0.016
  4647299      $409,475.33        74.55                           0.250                 0.016
  4647305      $270,625.78        79.71                           0.250                 0.016
  4647362      $269,799.62        76.49                           0.250                 0.016
  4647372      $254,647.87        78.46                           0.250                 0.016
  4647374      $269,617.63        80.00                           0.250                 0.016
  4647387      $267,001.69        80.00                           0.250                 0.016
  4647777      $360,000.00        80.00                           0.250                 0.016
  4647802      $230,000.00        76.67                           0.250                 0.016
  4647891      $247,000.00        58.12                           0.250                 0.016
  4647919      $275,500.00        95.00                           0.250                 0.016
  4647953      $358,517.99        49.32                           0.250                 0.016
  4647994      $224,649.16        80.00                           0.250                 0.016
  4648005      $276,923.31        89.39                           0.250                 0.016
  4648192      $326,769.21        76.58                           0.250                 0.016
  4648651      $420,000.00        80.00                           0.250                 0.016
  4648719      $244,581.57        90.00                 06        0.250                 0.016
  4648729      $145,784.33        75.00                           0.250                 0.016
  4649198      $299,950.00        80.00                           0.250                 0.016
  4649494      $264,000.00        75.43                           0.250                 0.016
  4649791      $225,000.00        90.00                           0.250                 0.016
  4650432      $252,000.00        90.00                           0.250                 0.016
  4650815      $116,900.00        70.00                           0.250                 0.016
  4651029      $358,846.55        90.00                 06        0.250                 0.016
  4651232      $405,000.00        78.03                           0.250                 0.016
  6254502      $239,076.83        89.98                 13        0.250                 0.016
  6286286      $236,805.63        90.00                 33        0.250                 0.016
  6320010      $247,479.26        89.97                 11        0.250                 0.016
  6325791      $236,828.45        73.60                           0.250                 0.016
  6330193      $240,267.75        69.94                           0.250                 0.016
  6331771      $229,199.88        90.00                 12        0.250                 0.016
  6349806      $243,561.46        95.00                 33        0.250                 0.016
  6353653      $310,955.37        75.15                           0.250                 0.016
  6362710      $226,728.47        95.00                 33        0.250                 0.016
  6369670      $269,100.00        90.00                 17        0.250                 0.016
  6370816      $297,034.45        79.33                           0.250                 0.016
  6376153      $319,546.84        45.65                           0.250                 0.016
  6377573      $235,263.88        95.00                 01        0.250                 0.016
  6388905      $899,380.63        64.29                           0.250                 0.016
  6390142      $748,883.30        75.00                           0.250                 0.016
  6396027      $267,820.18        90.00                 06        0.250                 0.016
  6398761      $235,665.80        80.00                           0.250                 0.016
  6401916      $313,449.99        69.70                           0.250                 0.016
  6402249      $229,837.67        77.97                           0.250                 0.016
  6402787      $267,389.50        85.00                 11        0.250                 0.016
  6404662      $425,291.96        80.00                           0.250                 0.016
  6406532      $290,728.02        80.00                           0.250                 0.016
  6409723      $221,251.45        90.00                 33        0.250                 0.016
  6411116      $275,519.42        80.00                           0.250                 0.016
  6411580      $109,922.37        52.88                           0.250                 0.016
  6416488      $229,674.29        79.31                           0.250                 0.016
  6417160      $249,135.03        61.27                           0.250                 0.016
  6418117      $289,412.34        80.00                           0.250                 0.016
  6418517      $439,697.19        75.86                           0.250                 0.016
  6423670      $499,664.51        59.88                           0.250                 0.016
  6424243       $85,634.55        70.00                           0.250                 0.016
  6429445      $265,743.91        95.00                 16        0.250                 0.016
  6430082      $284,596.41        64.10                           0.250                 0.016
  6430628      $350,595.68        80.00                           0.250                 0.016
  6430726      $294,382.53        80.00                           0.250                 0.016
  6430780      $314,777.67        70.00                           0.250                 0.016
  6430884      $199,858.85        64.52                           0.250                 0.016
  6431216      $297,987.93        80.00                           0.250                 0.016
  6431467      $227,677.12        80.00                           0.250                 0.016
  6431740      $249,795.07        70.03                           0.250                 0.016
  6431759      $255,680.67        89.86                 33        0.250                 0.016
  6432007      $461,282.33        80.00                           0.250                 0.016
  6432222      $239,660.13        75.00                           0.250                 0.016
  6432817      $289,790.11        73.42                           0.250                 0.016
  6432970      $234,658.74        61.20                           0.250                 0.016
  6433077      $230,904.13        80.00                           0.250                 0.016
  6433184      $255,360.35        94.83                 33        0.250                 0.016
  6433439      $235,747.93        94.99                 33        0.250                 0.016
  6433823      $231,823.46        80.00                           0.250                 0.016
  6433902      $327,774.27        80.00                           0.250                 0.016
  6433961      $151,800.46        80.00                           0.250                 0.016
  6434037      $259,021.62        80.00                           0.250                 0.016
  6434654      $140,828.55        65.28                           0.250                 0.016
  6435080      $314,783.22        67.01                           0.250                 0.016
  6435208      $218,989.44        79.97                           0.250                 0.016
  6435986      $255,609.21        80.00                           0.250                 0.016
  6436022      $226,440.07        79.77                           0.250                 0.016
  6436200      $388,988.10        54.22                           0.250                 0.016
  6436333      $231,895.19        94.97                 33        0.250                 0.016
  6436761      $416,224.44        80.00                           0.250                 0.016
  6437050      $274,805.91        86.48                 13        0.250                 0.016
  6437281      $227,101.49        94.99                 33        0.250                 0.016
  6437377      $258,750.00        75.00                           0.250                 0.016
  6437619      $257,408.82        80.00                           0.250                 0.016
  6438327      $384,748.16        58.33                           0.250                 0.016
  6438408      $220,217.83        90.00                 33        0.250                 0.016
  6438714      $272,557.50        89.99                 13        0.250                 0.016
  6438781      $329,532.68        40.74                           0.250                 0.016
  6439146      $254,665.25        70.44                           0.250                 0.016
  6439439      $251,843.37        75.00                           0.250                 0.016
  6440099      $305,598.31        75.37                           0.250                 0.016
  6440319      $229,674.29        67.01                           0.250                 0.016
  6440405      $215,694.12        77.14                           0.250                 0.016
  6440447      $237,142.37        90.00                 33        0.250                 0.016
  6440685      $288,116.32        95.00                 24        0.250                 0.016
  6441155      $318,380.74        90.00                 24        0.250                 0.016
  6441220      $299,585.73        75.00                           0.250                 0.016
  6441355      $269,414.46        80.00                           0.250                 0.016
  6441528      $253,012.09        80.00                           0.250                 0.016
  6441547      $299,530.53        78.95                           0.250                 0.016
  6441639      $366,687.66        80.00                           0.250                 0.016
  6442114      $275,810.06        80.00                           0.250                 0.016
  6442241      $259,829.93        61.18                           0.250                 0.016
  6443098      $599,576.53        64.03                           0.250                 0.016
  6443101      $260,979.77        95.00                 12        0.250                 0.016
  6443117      $379,501.17        80.00                           0.250                 0.016
  6443194      $316,880.62        81.37                 01        0.250                 0.016
  6443757      $301,775.87        80.00                           0.250                 0.016
  6444161      $247,648.81        55.11                           0.250                 0.016
  6445073      $226,928.18        75.00                           0.250                 0.016
  6445087      $259,649.92        72.22                           0.250                 0.016
  6445214      $334,548.94        77.01                           0.250                 0.016
  6445301       $79,892.29        61.54                           0.250                 0.016
  6445310      $231,840.34        80.00                           0.250                 0.016
  6445313      $219,655.72        80.00                           0.250                 0.016
  6445904      $334,963.42        80.00                           0.250                 0.016
  6445947      $463,672.52        68.74                           0.250                 0.016
  6446162      $122,817.53        37.78                           0.250                 0.016
  6446354      $239,846.96        79.47                           0.250                 0.016
  6446598      $260,639.58        75.65                           0.250                 0.016
  6446779      $440,496.64        80.00                           0.250                 0.016
  6446995      $299,475.30        79.99                           0.250                 0.016
  6447169      $227,834.98        80.00                           0.250                 0.016
  6447307      $343,750.10        75.00                           0.250                 0.016
  6448040      $411,701.81        37.45                           0.250                 0.016
  6448132      $314,899.07        79.77                           0.250                 0.016
  6448616      $333,652.20        90.00                 33        0.250                 0.016
  6450017      $223,096.36        95.00                 13        0.250                 0.016
  6450106      $239,826.30        80.00                           0.250                 0.016
  6450200      $149,896.78        31.98                           0.250                 0.016
  6452241       $64,952.95        59.91                           0.250                 0.016
  6452541      $269,809.25        90.00                 33        0.250                 0.016
  6452815      $251,263.39        89.99                 17        0.250                 0.016
  6452824      $274,795.91        67.07                           0.250                 0.016
  6452898      $423,715.51        80.00                           0.250                 0.016
  6453000      $322,289.04        75.00                           0.250                 0.016
  6453090      $399,731.61        80.00                           0.250                 0.016
  6453287      $282,605.38        69.98                           0.250                 0.016
  6453423      $263,523.06        90.00                 17        0.250                 0.016
  6453449      $319,779.78        80.00                           0.250                 0.016
  6454341      $223,391.09        77.67                           0.250                 0.016
  6455208      $266,421.11        78.53                           0.250                 0.016
  6455274      $308,847.84        78.24                           0.250                 0.016
  6455983      $351,945.09        79.99                           0.250                 0.016
  6456043      $266,811.55        77.17                           0.250                 0.016
  6456290      $427,408.97        80.00                           0.250                 0.016
  6456699      $343,751.02        80.00                           0.250                 0.016
  6456828      $188,873.18        50.40                           0.250                 0.016
  6456839      $233,846.93        90.00                 01        0.250                 0.016
  6456873      $246,238.82        80.00                           0.250                 0.016
  6457077      $224,841.19        75.00                           0.250                 0.016
  6457201      $244,808.88        74.24                           0.250                 0.016
  6457444      $331,771.52        78.12                           0.250                 0.016
  6457800      $279,007.86        80.00                           0.250                 0.016
  6457930      $305,784.03        90.00                 13        0.250                 0.016
  6458515      $259,816.50        80.00                           0.250                 0.016
  6459201      $455,694.03        80.00                           0.250                 0.016
  6459487      $244,818.17        62.03                           0.250                 0.016
  6459683      $302,072.29        89.36                 11        0.250                 0.016
  6459809      $253,421.01        80.00                           0.250                 0.016
  6460141      $503,653.15        80.00                           0.250                 0.016
  6460142      $269,827.83        75.00                           0.250                 0.016
  6460476      $384,518.28        89.99                 13        0.250                 0.016
  6460494      $243,223.83        63.06                           0.250                 0.016
  6461033      $272,916.76        94.99                 17        0.250                 0.016
  6462088      $297,405.33        80.00                           0.250                 0.016
  6462173      $251,027.83        95.00                 12        0.250                 0.016
  6462829      $287,796.73        90.00                           0.250                 0.016
  6462941      $318,196.97        80.00                           0.250                 0.016
  6463773      $287,721.86        80.00                           0.250                 0.016
  6464102      $256,323.48        90.00                 33        0.250                 0.016
  6465059      $564,611.17        75.33                           0.250                 0.016
  6465562      $346,898.74        80.00                           0.250                 0.016
  6465599      $234,342.32        69.53                           0.250                 0.016
  6466549      $247,170.97        89.98                 13        0.250                 0.016
  6466752      $303,135.90        89.99                 13        0.250                 0.016
  6466984      $218,023.01        95.00                 11        0.250                 0.016
  6467036      $288,845.99        63.67                           0.250                 0.016
  6467233      $730,746.76        75.00                           0.250                 0.016
  6467818      $330,266.74        83.47                 12        0.250                 0.016
  6467868      $161,891.30        67.50                           0.250                 0.016
  6467882      $224,845.15        75.00                           0.250                 0.016
  6467937      $349,740.25        73.07                           0.250                 0.016
  6468036      $258,807.78        68.16                           0.250                 0.016
  6468432      $242,836.95        90.00                 17        0.250                 0.016
  6468511      $359,745.92        60.76                           0.250                 0.016
  6468530      $299,777.36        79.58                           0.250                 0.016
  6469359      $409,724.90        53.25                           0.250                 0.016
  6469536      $379,710.85        71.03                           0.250                 0.016
  6470105      $291,799.05        80.00                           0.250                 0.016
  6470162      $299,782.87        75.00                           0.250                 0.016
  6470626      $279,792.20        80.00                           0.250                 0.016
  6470821      $259,811.82        80.00                           0.250                 0.016
  6471729      $164,389.63        70.00                           0.250                 0.016
  6471902      $236,637.04        80.00                           0.250                 0.016
  6471952      $223,298.08        95.00                 12        0.250                 0.016
  6472280      $263,822.86        80.00                           0.250                 0.016
  6472390      $256,318.96        95.00                 24        0.250                 0.016
  6472733      $290,400.01        94.99                 01        0.250                 0.016
  6473146      $399,717.68        80.00                           0.250                 0.016
  6473271       $89,195.93        70.00                           0.250                 0.016
  6473322      $369,751.74        75.51                           0.250                 0.016
  6474248      $227,850.86        80.00                           0.250                 0.016
  6474397      $455,709.22        80.00                           0.250                 0.016
  6474800      $319,785.28        80.00                           0.250                 0.016
  6475314      $238,335.87        74.53                           0.250                 0.016
  6475559      $161,891.30        68.94                           0.250                 0.016
  6475791      $285,388.04        80.00                           0.250                 0.016
  6477013      $461,697.78        66.00                           0.250                 0.016
  6478557      $514,298.03        80.00                           0.250                 0.016
  6478664      $247,629.47        72.88                           0.250                 0.016
  6478966      $245,338.68        89.97                 13        0.250                 0.016
  6479009      $499,655.90        45.45                           0.250                 0.016
  6479390       $48,971.07        30.82                           0.250                 0.016
  6480072      $449,698.06        68.70                           0.250                 0.016
  6481288      $291,709.06        87.13                 06        0.250                 0.016
  6482845      $300,743.89        90.00                 06        0.250                 0.016
  6485807      $249,832.26        64.10                           0.250                 0.016
  6486409      $277,813.46        73.16                           0.250                 0.016
  6489829      $325,000.00        38.69                           0.250                 0.016
  6489912      $259,807.04        42.62                           0.250                 0.016
  6491276      $269,814.19        90.00                 33        0.250                 0.016
  6492239      $282,300.62        79.99                           0.250                 0.016
  6493671      $446,366.98        76.09                           0.250                 0.016
  6494539      $260,920.31        94.98                 13        0.250                 0.016
  6495737      $335,000.72        79.81                           0.250                 0.016
  6496990      $420,000.00        70.00                           0.250                 0.016
  6497477      $293,000.00        84.93                 33        0.250                 0.016
  6498352      $322,500.00        79.99                           0.250                 0.016
  6505933       $56,000.00        70.00                           0.250                 0.016

           $220,453,246.57

</TABLE>



<PAGE>



                                   EXHIBIT F-3



            [Schedule of Mortgage Loans Serviced by Other Servicers]

                                     NASCOR
                       NMI / 1997-17 Exhibit F-3 (Part B)
                  20 & 30 YEAR FIXED RATE NON-RELOCATION LOANS





MORTGAGE                                            NMI
LOAN                                                LOAN
NUMBER             SERVICER                         SELLER

4544270            COUNTRYWIDE FUNDING CORP.        COUNTRYWIDE FUNDING CORP.
4544318            COUNTRYWIDE FUNDING CORP.        COUNTRYWIDE FUNDING CORP.
4544344            COUNTRYWIDE FUNDING CORP.        COUNTRYWIDE FUNDING CORP.
4555154            COUNTRYWIDE FUNDING CORP.        COUNTRYWIDE FUNDING CORP.
4557268            COUNTRYWIDE FUNDING CORP.        COUNTRYWIDE FUNDING CORP.
4568628            NATIONAL CITY MORTGAGE CO.       NATIONAL CITY MORTGAGE CO.
4569680            NATIONAL CITY MORTGAGE CO.       NATIONAL CITY MORTGAGE CO.
4589139            FIRST BANK NATIONAL ASSOC.       FIRST BANK NATIONAL ASSOC.
4614179            FIRST BANK NATIONAL ASSOC.       FIRST BANK NATIONAL ASSOC.
4618285            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4622287            FIRST BANK NATIONAL ASSOC.       FIRST BANK NATIONAL ASSOC.
4623198            FIRST BANK NATIONAL ASSOC.       FIRST BANK NATIONAL ASSOC.
4629399            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4629435            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4629826            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4629827            FIRST BANK NATIONAL ASSOC.       FIRST BANK NATIONAL ASSOC.
4629845            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4629893            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4629912            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4633845            CITICORP MORTGAGE, INC.          CITICORP MORTGAGE, INC.
4634662            CITICORP MORTGAGE, INC.          CITICORP MORTGAGE, INC.
4634841            HUNTINGTON MORTGAGE COMPANY      HUNTINGTON MORTGAGE COMPANY
4641607            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645664            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645670            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645689            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645698            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645706            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645714            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645716            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645719            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645726            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645731            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645733            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645745            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645751            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645767            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645786            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645808            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645823            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645836            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645856            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4645870            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646078            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4646107            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646124            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646145            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646157            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646161            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646175            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646272            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4646300            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4646391            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646401            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646416            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646441            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646458            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646464            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646471            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646482            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646500            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646621            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4646623            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647000            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647019            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647027            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647039            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647057            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647066            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647073            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647076            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647099            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647183            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4647185            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4647188            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4647191            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4647197            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4647406            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647414            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647427            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647431            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647443            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647457            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647461            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647470            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647472            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647480            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647492            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647511            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647655            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647660            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647726            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647734            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647854            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647880            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647886            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647898            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647904            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647915            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647923            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647928            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647931            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647943            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647966            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647968            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647972            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647981            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647992            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4647996            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648018            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648026            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648180            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648181            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648185            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648189            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648191            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648193            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648195            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648199            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648203            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648205            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648231            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4648239            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4648244            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4648249            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4648252            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4648267            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4648314            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4648318            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4648327            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4648346            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4648795            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4649032            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4649913            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4651339            FT MORTGAGE COMPANIES            FT MORTGAGE COMPANIES
4651657            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4651694            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4651820            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4651837            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4651923            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4652435            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4652543            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.
4652605            SUNTRUST MORTGAGE, INC.          SUNTRUST MORTGAGE, INC.


COUNT:                143
WAC:                    7.786454907
WAM:                  357.9060703
WALTV:                      75.88579581



<PAGE>


                                    EXHIBIT G


                               REQUEST FOR RELEASE
                             (for Trustee/Custodian)


Loan Information

         Name of Mortgagor:            -----------------------------

         Servicer
         Loan No.:                     -----------------------------

Custodian/Trustee

         Name:                         -----------------------------

         Address:                      -----------------------------

                                       -----------------------------
         Custodian/Trustee
         Mortgage File No.:            -----------------------------

Seller

         Name:                         -----------------------------

         Address:                      -----------------------------

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

         Certificates:                 Mortgage Pass-Through Certificates,
                                       Series 1997-17


      The undersigned  Master Servicer hereby  acknowledges that it has received
from  First  Union  National  Bank,  as  Trustee  for the  Holders  of  Mortgage
Pass-Through Certificates,  Series 1997-17, 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 October 30, 1997 (the "Pooling and Servicing  Agreement")
among the Trustee, the Seller and the Master Servicer.

(  )     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 Country
         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
         Trustee 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
         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 1997-17, Class [A-R][A-LR]  Certificate (the
"Class  [A-R][A-LR]  Certificate")  for the account of, or as agent (including a
broker, nominee, or other middleman) for, any person or entity from which it has
not received an affidavit substantially in the form of this affidavit. For these
purposes,  a "disqualified  organization"  means the United States, any state or
political  subdivision  thereof,  any  foreign  government,   any  international
organization,  any agency or instrumentality of any of the foregoing (other than
an instrumentality if all of its activities are subject to tax and a majority of
its  board of  directors  is not  selected  by such  governmental  entity),  any
cooperative  organization  furnishing  electric  energy or  providing  telephone
service to persons in rural areas as described in Code Section 1381(a)(2)(C), or
any organization  (other than a farmers'  cooperative  described in Code Section
521) that is exempt from  taxation  under the Code unless such  organization  is
subject to the tax on unrelated business income imposed by Code Section 511. For
these  purposes,  an "ERISA  Prohibited  Holder" means an employee  benefit plan
subject to the fiduciary  provisions of the Employee  Retirement Income Security
Act of 1974, as amended ("ERISA"),  and/or Code Section 4975 or any governmental
plan,  as defined in Section  3(32) of ERISA,  subject to any federal,  state or
local law which is, to a material extent, similar to the foregoing provisions of
ERISA or the Code  (collectively,  a "Plan") or a Person  acting on behalf of or
investing the assets of such a Plan.

      4. That the  Purchaser  historically  has paid its debts as they have come
due and  intends  to pay  its  debts  as they  come  due in the  future  and the
Purchaser  intends to pay taxes  associated  with holding the Class  [A-R][A-LR]
Certificate as they become due.

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

      6. That the Purchaser will not transfer the Class [A-R][A-LR]  Certificate
to any person or entity from which the  Purchaser  has not received an affidavit
substantially  in the form of this  affidavit  and as to which the Purchaser has
actual  knowledge that the  requirements set forth in paragraph 3, 4 or 7 hereof
are not  satisfied or that the Purchaser has reason to know does not satisfy the
requirements set forth in paragraph 4 hereof.

      7. That the  Purchaser  (i) is not a person  other  than a U.S.  Person (a
"Non-U.S. Person") or (ii) is a Non-U.S. Person that holds the Class [A-R][A-LR]
Certificate  in  connection  with the conduct of a trade or business  within the
United States and has furnished the transferor and the Trustee 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 Trustee an opinion of a nationally  recognized tax
counsel to the effect that the transfer of the Class [A-R][A-LR]  Certificate to
it is in  accordance  with the  requirements  of the  Code  and the  regulations
promulgated   thereunder  and  that  such  transfer  of  the  Class  [A-R][A-LR]
Certificate  will not be  disregarded  for federal  income tax  purposes.  "U.S.
Person"  means a citizen  or  resident  of the  United  States,  a  corporation,
partnership  (except as provided in applicable  Treasury  regulations)  or other
entity  created or  organized  in or under the laws of the United  States or any
political  subdivision thereof, an estate that is subject to U.S. federal income
tax  regardless  of the source of its income or a trust if (i) for taxable years
beginning  after December 31, 1996 (or after August 20, 1996, if the trustee has
made an  applicable  election),  a court  within  the  United  States is able to
exercise primary  supervision over the  administration of such trust, and one or
more U.S.  Persons have the  authority to control all  substantial  decisions of
such trust or (ii) for all other  taxable  years,  such trust is subject to U.S.
federal  income tax  regardless  of the source of its income  (or, to the extent
provided in  applicable  Treasury  regulations,  certain  trusts in existence on
August 20, 1996 which are eligible to elect to be treated as U.S. Persons).

      8.  That the  Purchaser  agrees  to such  amendments  of the  Pooling  and
Servicing Agreement as may be required to further effectuate the restrictions on
transfer  of  the  Class   [A-R][A-LR]   Certificate  to  such  a  "disqualified
organization,"  an agent thereof,  an ERISA  Prohibited  Holder or a person that
does not satisfy the  requirements  of paragraph 4,  paragraph 5 and paragraph 7
hereof.

      9. That the Purchaser  consents to the  designation of the Master Servicer
as  its  agent  to  act as  "tax  matters  person"  of  the  [Upper-Tier  REMIC]
[Lower-Tier  REMIC]  pursuant  to  Section  3.01 of the  Pooling  and  Servicing
Agreement,  and if such  designation is not permitted by the Code and applicable
law, to act as tax matters person if requested to do so.



<PAGE>



      IN WITNESS  WHEREOF,  the  Purchaser  has  caused  this  instrument  to be
executed on its behalf,  pursuant to authority of its Board of Directors, by its
[Title of Officer] this ----- day of , 19--.

                               [NAME OF PURCHASER]


                                By:--------------------------
                                   [Name of Officer]
                                   [Title of Officer]


      Personally appeared before me the above-named [Name of Officer],  known or
proved to me to be the same person who executed the foregoing  instrument and to
be the [Title of Officer],  of the  Purchaser,  and  acknowledged  to me that he
[she] executed the same as his [her] free act and deed and the free act and deed
of the Purchaser.


      Subscribed and sworn before me this -- day of , 19--.



- -----------------------------
NOTARY PUBLIC

COUNTY OF -------------------

STATE OF --------------------

My commission expires the -- day of ----------, 19--.


<PAGE>



                                    EXHIBIT I




            [Letter from Transferor of Class [A-R][A-LR] Certificate]





                                     [Date]




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

                  Re:  Norwest Asset Securities Corporation,
                       Series 1997-17, Class [A-R][A-LR]

Ladies and Gentlemen:

      [Transferor] has reviewed the attached affidavit of [Transferee],  and has
no actual  knowledge  that such  affidavit is not true and has no reason to know
that the  information  contained in paragraph 4 thereof is not true.  


                                                   Very truly yours, 
                                                   [Transferor]

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



<PAGE>


                                    EXHIBIT J





                      NORWEST ASSET SECURITIES CORPORATION


                       MORTGAGE PASS-THROUGH CERTIFICATES
                                 SERIES 1997-17
            CLASS [A-8] [A-PO] [A-WIO] [B-3] [B-4] [B-5] 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 1997-17, Class
[A-8] [A-PO]  [A-WIO]  [B-3] [B-4] [B-5]  Certificates  (the "Class [A-8] [A-PO]
[A-WIO]  [B-3]  [B-4]  [B-5]   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  October  30,  1997  (the  "Pooling  and
Servicing  Agreement")  among Norwest Asset  Securities  Corporation,  as seller
("NASCOR"),  Norwest Bank Minnesota,  National  Association,  as master servicer
(the  "Master  Servicer")  and  First  Union  National  Bank,  as  trustee  (the
"Trustee"),  of  Norwest  Asset  Securities  Corporation  Mortgage  Pass-Through
Certificates, Series 1997-17.

      Section 2. Representations and Warranties of the Purchaser.  In connection
with the proposed transfer, the Purchaser represents and warrants to NASCOR, the
Master Servicer and the Trustee 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-8]  [A-PO]  [A-WIO]  [B-3]  [B-4]  [B-5]
Certificates,  and to enter into this Agreement, and duly executed and delivered
this Agreement.

      (b) The Purchaser is acquiring the Class [A-8] [A-PO]  [A-WIO] [B-3] [B-4]
[B-5]  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-8]
[A-PO]  [A-WIO]  [B-3] [B-4] [B-5]  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-8]  [A-PO]  [A-WIO]  [B-3]  [B-4] [B-5]
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-8] [A-PO] [A-WIO] [B-3] [B-4] [B-5] 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 NASCOR  concerning  the Class [A-8] [A-PO]  [A-WIO]  [B-3]
[B-4]  [B-5]  Certificates  and all  matters  relating  thereto,  and obtain any
additional  information  (including  documents)  relevant  to  its  decision  to
purchase  the Class [A-8] [A-PO]  [A-WIO]  [B-3] [B-4] [B-5]  Certificates  that
NASCOR 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-8] [A-PO] [A-WIO] [B-3] [B-4] [B-5] Certificates.  The Purchaser will not use
or disclose any  information it receives in connection  with its purchase of the
Class  [A-8]  [A-PO]  [A-WIO]  [B-3]  [B-4]  [B-5]  Certificates  other  than in
connection  with a  subsequent  sale of Class [A-8] [A-PO]  [A-WIO]  [B-3] [B-4]
[B-5] Certificates.

      [(e) For the Class A-PO,  Class A-WIO,  Class B-3, Class B-4 and Class B-5
Certificates:  Either (i) the Purchaser is not an employee benefit plan or other
retirement  arrangement  subject to Title I of the  Employee  Retirement  Income
Security  Act of 1974,  as amended,  ("ERISA"),  or Section 4975 of the Internal
Revenue Code of 1986,  as amended  (the  "Code"),  or a  governmental  plan,  as
defined in Section  3(32) of ERISA  subject to any  federal,  state or local law
("Similar  Law")  which is,  to a  material  extent,  similar  to the  foregoing
provisions  of ERISA or the Code  (collectively,  a "Plan"),  an agent acting on
behalf of a Plan, or a person  utilizing the assets of a Plan or (ii) [for Class
[B-3][B-4][B-5] Certificates only] if the Purchaser is an insurance company, the
source of funds used to purchase  the Class  [B-3][B-4][B-5]  Certificate  is an
"insurance  company general account" (as such term is defined in Section V(e) of
Prohibited  Transaction Class Exemption 95-60 ("PTE 95-60"),  60 Fed. Reg. 35925
(July 12,  1995) and there is no Plan with  respect  to which the amount of such
general  account's  reserves and liabilities  for the contract(s)  held by or on
behalf of such Plan and all other  Plans  maintained  by the same  employer  (or
affiliate  thereof as  defined  in Section  V(a)(1) of PTE 95-60) or by the same
employee  organization  exceeds 10% of the total of all reserves and liabilities
of such general  account (as such amounts are  determined  under Section I(a) of
PTE 95-60) at the date of  acquisition or (iii) the Purchaser has provided (a) a
"Benefit  Plan  Opinion"  satisfactory  to NASCOR  and the  Trustee of the Trust
Estate  and (b) such other  opinions  of  counsel,  officers'  certificates  and
agreements as NASCOR 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 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).]

      [(e) For the Class  A-8  Certificates:  If the  purchaser  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 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, then such
Plan or person is an "accredited  investor" within the meaning of Rule 501(a)(1)
of the Act.]

      (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-8] [A-PO] [A-WIO] [B-3] [B-4] [B-5]  Certificates is in
compliance therewith.

      Section 3.  Transfer  of Class  [A-8]  [A-PO]  [A-WIO]  [B-3]  [B-4] [B-5]
Certificates.

      (a) The Purchaser  understands  that the Class [A-8] [A-PO]  [A-WIO] [B-3]
[B-4] [B-5]  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-8]  [A-PO]  [A-WIO]  [B-3]  [B-4]  [B-5]  Certificates  are
registered  under the Act and  applicable  state law or unless an exemption from
registration  is  available.  The  Purchaser  further  understands  that neither
NASCOR,  the Master Servicer nor the Trustee is under any obligation to register
the Class  [A-8]  [A-PO]  [A-WIO]  [B-3]  [B-4]  [B-5]  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
Trustee shall require,  in order to assure  compliance  with such laws, that the
Certificateholder's  prospective transferee certify to NASCOR and the Trustee 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 Trustee or NASCOR may, if such transfer
is made within  three  years from the later of (a) the  Closing  Date or (b) the
last  date  on  which  NASCOR  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  Trustee,  the
Master Servicer or NASCOR.  Any such  Certificateholder  desiring to effect such
transfer  shall,  and does hereby agree to,  indemnify  the Trustee,  the Master
Servicer,  any Paying Agent  acting on behalf of the Trustee and NASCOR  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-8]  [A-PO]  [A-WIO]  [B-3]  [B-4]  [B-5]
Certificate shall be made unless the transferee  provides NASCOR and the Trustee
with a Transferee's Letter, substantially in the form of this Agreement.

      (c) The Purchaser  acknowledges  that its Class [A-8] [A-PO] [A-WIO] [B-3]
[B-4] [B-5] Certificates bear a legend setting forth the applicable restrictions
on transfer.



<PAGE>



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

                                   [PURCHASER]



                                            By:---------------------------------

                                            Its:--------------------------------


<PAGE>




                                    EXHIBIT K




                      NORWEST ASSET SECURITIES CORPORATION


                       MORTGAGE PASS-THROUGH CERTIFICATES
                                 SERIES 1997-17
                       CLASS [M] [B-1] [B-2] 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 1997-17, Class
[M] [B-1] [B-2]  Certificates (the "Class [M] [B-1] [B-2]  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  October  30,  1997  (the  "Pooling  and
Servicing  Agreement")  among Norwest Asset  Securities  Corporation,  as seller
("NASCOR"),  Norwest Bank Minnesota,  National  Association,  as master servicer
(the  "Master  Servicer")  and  First  Union  National  Bank,  as  trustee  (the
"Trustee")  of  Norwest  Asset  Securities   Corporation  Mortgage  Pass-Through
Certificates, Series 1997-17.

      Section 2. Representations and Warranties of the Purchaser.  In connection
with the proposed transfer, the Purchaser represents and warrants to NASCOR, the
Master Servicer and the Trustee that:

         Either  (i) the  Purchaser  is not an  employee  benefit  plan or other
         retirement  arrangement  subject to Title I of the Employee  Retirement
         Income Security Act of 1974, as amended,  ("ERISA"), or Section 4975 of
         the  Internal  Revenue  Code of 1986,  as amended  (the  "Code"),  or a
         governmental  plan, as defined in Section 3(32) of ERISA subject to any
         federal,  state or local law  ("Similar  Law")  which is, to a material
         extent,  similar  to the  foregoing  provisions  of  ERISA  or the Code
         (collectively,  a "Plan"),  an agent  acting on behalf of a Plan,  or a
         person  utilizing  the assets of a Plan or (ii) if the  Purchaser is an
         insurance  company,  the source of funds used to purchase the Class [M]
         [B-1] [B-2]  Certificate is an "insurance  company general account" (as
         such term is defined in Section V(e) of  Prohibited  Transaction  Class
         Exemption  95-60 ("PTE 95-60"),  60 Fed. Reg. 35925 (July 12, 1995) and
         there is no Plan  with  respect  to which the  amount  of such  general
         account's  reserves and liabilities  for the contract(s)  held by or on
         behalf of such Plan and all other Plans maintained by the same employer
         (or affiliate thereof as defined in Section V(a)(1) of PTE 95-60) or by
         the same employee organization, exceed 10% of the total of all reserves
         and liabilities of such general account (as such amounts are determined
         under  Section I(a) of PTE 95-60) at the date of  acquisition  or (iii)
         the Purchaser has provided (a) a "Benefit Plan Opinion" satisfactory to
         NASCOR and the Trustee of the Trust Estate and (b) such other  opinions
         of counsel,  officers'  certificates  and  agreements  as NASCOR 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 Trustee, the Seller or the Master Servicer
         to any  obligation  in addition to those  undertaken in the Pooling and
         Servicing  Agreement  (including  any liability for civil  penalties or
         excise  taxes  imposed  pursuant to ERISA,  Section 4975 of the Code or
         Similar Law).

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



                                        [PURCHASER]



                                         By:-------------------------------

                                         Its:------------------------------

                                         [Reserved]


<PAGE>

                                    EXHIBIT L




                Countrywide Home Loans, Inc. Servicing Agreement

               First Bank National Association Servicing Agreement

                  Huntington Mortgage Corp. Servicing Agreement

                   Suntrust Mortgage, Inc. Servicing Agreement

               National City Mortgage Company Servicing Agreement

                    FT Mortgage Companies Servicing Agreement

                   Citicorp Mortgage, Inc. Servicing Agreement

                   Norwest Mortgage, Inc. 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
1997-17, Class ---- (the "Class B Certificates").  The Class B Certificates were
issued  pursuant to a Pooling and  Servicing  Agreement  dated as of October 30,
1997 among Norwest Asset Securities Corporation,  as Seller ("NASCOR"),  Norwest
Bank  Minnesota,  National  Association,  as Master  Servicer  and  First  Union
National Bank, as Trustee.

                                    intends   to   resell  all of  the  Class  B
Certificates  directly  to the Purchaser on or promptly after the date hereof.

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

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



                                    ARTICLE I

                                   DEFINITIONS

      Section 1.01 Defined Terms

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

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

      Collateral Fund: The fund  established and maintained  pursuant to Section
3.01 hereof.

      Collateral  Fund  Permitted  Investments:  Either (i)  obligations  of, or
obligations fully guaranteed as to principal and interest by, the United States,
or any agency or instrumentality  thereof,  provided such obligations are backed
by the full faith and  credit of the United  States,  (ii) a money  market  fund
rated in the highest rating  category by a nationally  recognized  rating agency
selected by the Company,  (iii) cash,  (iv) mortgage  pass-through  certificates
issued or guaranteed by Government National Mortgage Association, FNMA or FHLMC,
(v) commercial paper (including both  non-interest-bearing  discount obligations
and interest-bearing  obligations payable on demand or on a specified date), the
issuer of which may be an affiliate  of the Company,  having at the time of such
investment a rating of at least A-1 by Standard  and Poor's  ("S&P") or at least
P-1 by Moody's  Investors  Service,  Inc.  ("Moody's")  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 Aa2 by Moody's
or AA by 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 P-1 by Moody's or A-1 by S&P or (z) the  depository  institution  or trust
company is one that is acceptable to either  Moody's 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 1997-16. 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,  NASCOR,
and each  Servicer  and each  person who  controls  the  Company,  NASCOR,  or a
Servicer and each of their respective officers, directors, affiliates and agents
acting at the Company's,  NASCOR'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, NASCOR, or a Servicer, or on their behalf,
in  accordance  with the  provisions  of this  Agreement  and (i) which  actions
conflict with the Company's,  NASCOR'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:




© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission