NORWEST ASSET SECURITIES CORP MORT PASS THR CERT SER 1996-4
8-K, 1996-10-10
ASSET-BACKED SECURITIES
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

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



Date of Report:  August 27, 1996
(Date of earliest event reported)

Commission File No. 333-2209




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



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




5325 Spectrum Drive, 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 August  27,  1996,  Norwest  Asset  Securities  Corporation,  a Delaware
corporation (the "Registrant"),  sold Mortgage Pass-Through Certificates, Series
1996-4,  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-13, Class A-14, Class
A-15,  Class A-16,  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
$344,008,157.  The Offered  Certificates  were issued  pursuant to a Pooling and
Servicing Agreement, dated as of August 27, 1996, among the Registrant,  Norwest
Bank Minnesota,  National Association, as master servicer (the "Master Servicer"
or  "Norwest  Bank"),  and First Bank  National  Association,  as  trustee  (the
"Agreement"),  a  copy  of  which  is  filed  as  an  exhibit  hereto.  Mortgage
Pass-Through  Certificates,  Series 1996-4, Class A-12, Class B-3, Class B-4 and
Class B-5, having an aggregate initial principal balance of $39,158,773.66  (the
"Private  Certificates"  and,  together  with  the  Offered  Certificates,   the
"Certificates"), were also issued pursuant to the Agreement.

     As of the date of initial issuance,  the Offered Certificates  evidenced an
approximate  89.78%  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 Private  Certificates,  distributions on which 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 separate  REMICs
for federal  income tax purposes  (the  "Upper-Tier  REMIC" and the  "Lower-Tier
REMIC").  The Class A-1,  Class A-2, Class A-3, Class A-4, Class A-5, Class A-6,
Class A-7,  Class A-8, Class A-9,  Class A-10 and Class A-11  Certificates,  the
Class A-12 IO A Component,  the Class A-12 IO B  Component,  the Class A-12 IO C
Component,  the Class A-12 TAC Accrual  Component,  the Class A-12 PO Component,
the Class A-13, Class A-14, Class A-15 and Class A-16 Certificates,  the Class M
Certificates  and the 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  Certificates  will be  treated  as the  "residual
interest" 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
                              August 27, 1996,  among Norwest  Asset  Securities
                              Corporation,   Norwest  Bank  Minnesota,  National
                              Association  and First Bank National  Association,
                              as trustee.



     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

August 27, 1996

                                    ------------------------------
                                    /s/ M. Kathryn Gray
                                    Vice President




<PAGE>




                                INDEX TO EXHIBITS



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


   (EX-4)       Pooling and Servicing                                  E
                Agreement, dated as of August 27, 1996 among
                Norwest   Asset   Securities    Corporation,
                Norwest Bank Minnesota, National Association
                and  First  Bank  National  Association,  as
                trustee.


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




                      NORWEST ASSET SECURITIES CORPORATION

                                    (Seller)

                                       and

                  NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION

                                (Master Servicer)

                                       and

                         FIRST BANK NATIONAL ASSOCIATION

                                    (Trustee)


                         POOLING AND SERVICING AGREEMENT

                           Dated as of August 27, 1996

                                 $383,166,930.66

                       Mortgage Pass-Through Certificates
                                  Series 1996-4





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




<PAGE>



                                TABLE OF CONTENTS



                                     ARTICLE

                                   DEFINITIONS

<TABLE>
<S>                                                                                                        <C>
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 LOANS1

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........................................

                                    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.........................................

                                   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 Subordinated Percentage.............................................................
Section 11.08. Original Class M Percentage..................................................................
Section 11.09. Original Class M Principal Balance...........................................................
Section 11.10. Original Class M Fractional Interest.........................................................
Section 11.11. Original Class B-1 Percentage................................................................
Section 11.12. Original Class B-2 Percentage................................................................
Section 11.13. Original Class B-3 Percentage................................................................
Section 11.14. Original Class B-4 Percentage................................................................
Section 11.15. Original Class B-5 Percentage................................................................
Section 11.16. Original Class B Principal Balance...........................................................
Section 11.17. Original Class B Subclass Principal Balances.................................................
Section 11.18. Original Class B-1 Fractional Interest.......................................................
Section 11.19. Original Class B-2 Fractional Interest.......................................................
Section 11.20. Original Class B-3 Fractional Interest.......................................................
Section 11.21. Original Class B-4 Fractional Interest.......................................................
Section 11.22. Closing Date.................................................................................
Section 11.23. Right to Purchase............................................................................
Section 11.24. Wire Transfer Eligibility....................................................................
Section 11.25. Single Certificate...........................................................................
Section 11.26. Servicing Fee Rate...........................................................................
Section 11.27. Master Servicing Fee Rate....................................................................
</TABLE>






<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 Certificate
EXHIBIT A-13  -  Form of Face of Class A-13 Certificate
EXHIBIT A-14  -  Form of Face of Class A-14 Certificate
EXHIBIT A-15  -  Form of Face of Class A-15 Certificate
EXHIBIT A-16  -  Form of Face of Class A-16 Certificate
EXHIBIT A-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 1996-4 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 [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 August 27, 1996 executed
by NORWEST ASSET  SECURITIES  CORPORATION,  as Seller,  NORWEST BANK  MINNESOTA,
NATIONAL ASSOCIATION, as Master Servicer and FIRST BANK NATIONAL ASSOCIATION, 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.

     Accretion Directed Certificates:  Any of the Class A-2 Certificates,  Class
A-10 Certificates, Class A-13 Certificates and Class A-16 Certificates.

     Accretion  Termination Dates: The Class A-11 Accretion Termination Date and
the Class A-12 TAC Accrual Component Accretion Termination Date.

     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  Non-PO  Principal  Balance,  Class  A-12 PO  Component
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
Non-PO Principal Balance,  Class A-12 PO Component  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 $150,000
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-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-13  Certificates,  Class A-14  Certificates,  Class A-15
Certificates or Class A-16  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 Missouri or (iii) a day on which  banking  institutions
in the City of New  York,  or the  State of  Maryland,  State of Iowa,  State of
Minnesota or State of Missouri 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  Class  A-1  Certificates,  Class  A-2
Certificates,   Class  A-3  Certificates,  Class  A-4  Certificates,  Class  A-5
Certificates,   Class  A-6  Certificates,  Class  A-7  Certificates,  Class  A-8
Certificates,  Class A-9  Certificates,  Class  A-10  Certificates,  Class  A-11
Certificates,  Class  A-12  Certificates,  Class A-13  Certificates,  Class A-14
Certificates,  Class  A-15  Certificates,  Class  A-16  Certificates,  Class A-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-11 and Class A-12  Certificates),  (ii) the
lesser of the Class A Subclass  Principal Balance of the Class A-11 Certificates
and  the  Original  Class  A  Subclass  Principal  Balance  of  the  Class  A-11
Certificates  and (iii)  the  lesser of the  Class  A-12 TAC  Accrual  Component
Principal  Balance and the Original Class A-12 TAC Accrual  Component  Principal
Balance.

     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  Balance:  As of any date, an amount equal to the
sum  of  the  (i)  Class  A  Subclass  Principal  Balances  for  the  Class  A-1
Certificates,   Class  A-2  Certificates,  Class  A-3  Certificates,  Class  A-4
Certificates,   Class  A-5  Certificates,  Class  A-6  Certificates,  Class  A-7
Certificates,  Class  A-8  Certificates,  Class  A-9  Certificates,  Class  A-10
Certificates,  Class  A-11  Certificates,  Class A-13  Certificates,  Class A-14
Certificates,  Class  A-15  Certificates,  Class  A-16  Certificates,  Class A-R
Certificate and Class A-LR Certificate and (ii) the Component  Principal Balance
of the Class A-12 TAC Accrual Component.

     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  Distribution Amount: As to any Distribution Date,
the sum of (i) the Class A-11 Accrual  Distribution Amount, if any, with respect
to  such   Distribution   Date,  (ii)  the  Class  A-12  TAC  Accrual  Component
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  August  2001,  100%.  As to any  Distribution  Date
subsequent to August 2001 to and including the Distribution Date in August 2002,
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 August 2002 to and including the Distribution  Date in August 2003, 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 August 2003 to and including the Distribution  Date in August 2004, 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 August 2004 to and including the Distribution  Date in August 2005, 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 August  2005,  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  August
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  September 2001 and August 2002, (2) 35% of the Original  Subordinated
Principal  Balance  if such  Distribution  Date  occurs  between  and  including
September 2002 and August 2003, (3) 40% of the Original  Subordinated  Principal
Balance if such  Distribution  Date occurs between and including  September 2003
and August 2004, (4) 45% of the Original Subordinated  Principal Balance if such
Distribution  Date occurs between and including  September 2004 and August 2005,
and (5) 50% of the Original Subordinated  Principal Balance if such Distribution
Date occurs during or after  September  2005.  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-4  Certificates,  Class A-5
Certificates,   Class  A-6  Certificates,  Class  A-7  Certificates,  Class  A-8
Certificates,  Class A-9  Certificates,  Class  A-10  Certificates,  Class  A-11
Certificates,  Class  A-12  Certificates,  Class A-13  Certificates,  Class A-14
Certificates,  Class  A-15  Certificates,  Class  A-16  Certificates,  Class A-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-13
Certificates,  Class  A-14  Certificates,  Class A-15  Certificates,  Class A-16
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-11 and Class A-12  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-11
Certificates,  (i) as to any Distribution Date prior to the Class A-11 Accretion
Termination  Date,  the  amount  distributable  to the Class  A-11  Certificates
pursuant to Paragraph third clause (A) of Section  4.01(a)(i) and (ii) as to any
Distribution  Date on or after the Class A-11  Accretion  Termination  Date, the
amount  distributable  to the Class A-11  Certificates  pursuant  to  Paragraphs
first, second and third clause (A) of Section  4.01(a)(i).  As to the Class A-12
Certificates,  the  sum of (a)  with  respect  to the  Class  A-12  TAC  Accrual
Component,  (i) as to any Distribution  Date prior to the Class A-12 TAC Accrual
Component Accretion Termination Date, the amount distributable to the Class A-12
Certificates  with respect to the Class A-12 TAC Accrual  Component  pursuant to
Paragraph third clause (A) of Section 4.01(a)(i) and (ii) as to any Distribution
Date on or after the Class A-12 TAC Accrual Component Accretion Termination, the
amount  distributable to the Class A-12  Certificates  with respect to the Class
A-12 TAC Accrual Component pursuant to Paragraphs first, second and third clause
(A) of Section  4.01(a)(i);  (b) with  respect to the Class A-12 IO A Component,
Class  A-12  IO B  Component  and the  Class  A-12 IO C  Component,  the  amount
distributable to the Class A-12 Certificates with respect to the Class A-12 IO A
Component,  Class A-12 IO B Component and the Class A-12 IO C Component pursuant
to Paragraphs first and second of Section 4.01(a)(i) and (c) with respect to the
Class A-12 PO Component, the amount distributable to the Class A-12 Certificates
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-12  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-12 Certificates,
the sum of the Component Interest Accrual Amounts for the Class A-12 TAC Accrual
Component,  the Class A-12 IO A Component, the Class A-12 IO B Component and the
Class A-12 IO C Component.

     Class A Subclass Interest  Percentage:  As to any Distribution Date and any
Class A  Subclass  (other  than the Class  A-12  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
(other than for the Class A-12 Certificates) 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 in the case of the Class A-11  Certificates and the Class
A-12  Certificates with respect to the Class A-12 TAC Accrual Component prior to
their respective  Accretion  Termination Dates, the amount included in the Class
A-11  Accrual   Distribution   Amount  or  Class  A-12  TAC  Accrual   Component
Distribution  Amount,  as  the  case  may  be,  pursuant  to  clause  (i) of the
definition thereof).

     Class A Subclass  Loss  Percentage:  As to any  Determination  Date and any
Subclass of Class A Certificates  (other than the Class A-12  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-11
Certificates,  the Original Class A Subclass Principal Balance, if lower, by the
Class A Loss  Denominator  (determined  without  regard to any Class A  Subclass
Principal   Balance  of  any  Class  A  Subclass  (other  than  the  Class  A-12
Certificates)  or  Component  Principal  Balance of the Class  A-12 TAC  Accrual
Component  if it is not then  outstanding),  in each case  determined  as of the
preceding Determination Date.

     Class A Subclass Pass-Through Rate: As to each Class A Subclass, other than
the Class A-2, Class A-8, Class A-9, Class A-10,  Class A-12,  Class A-14, Class
A-15 and Class A-16 Certificates, the Class A Fixed Pass-Through Rate. As to the
Class A-2  Certificates,  7.000%  per annum.  As to the Class A-8  Certificates,
7.400% per annum. As to the Class A-9 Certificates,  7.150% per annum. As to the
Class A-10  Certificates,  7.000% per annum. The Class A-12 Certificates have no
Pass-Through  Rate. As to the Class A-14  Certificates,  7.200% per annum. As to
the  Class  A-15   Certificates,   7.500%  per  annum.  As  to  the  Class  A-16
Certificates, 7.000% per annum.

     Class A Subclass Principal Balance:  As of the first Determination Date and
as to any Class A Subclass,  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-12
Certificates),  the Original Class A Subclass  Principal Balance of such Class A
Subclass, increased in the case of the Class A-11 Certificates by the Class A-11
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  and (C) if
applicable,  from the Class A-11 Accrual  Distribution  Amount or the Class A-12
TAC Accrual Component  Distribution Amount for such prior Distribution Dates and
(b) the  Realized  Losses  previously  allocated  to such Class A Subclass  with
respect to prior  Distribution  Dates  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 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. As to the Class
A-12 Certificates,  the Class A Subclass Principal Balance will equal the sum of
the Component Principal Balances of the Class A-12 TAC Accrual Component and the
Class A-12 PO Component.

     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, in the case of the Class A-11  Certificates  and the Class
A-12  Certificates with respect to the Class A-12 TAC Accrual Component prior to
their respective  Accretion  Termination Dates, the amount included in the Class
A-11  Accrual  Distribution  Amount  or the  Class  A-12 TAC  Accrual  Component
Distribution  Amount,  as the  case  may  be,  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-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-5 Percentage:  The Class A Subclass  Principal Balance of the Class
A-5 Certificates divided by the Pool Balance (Non-PO Portion).

     Class A-5  Prepayment  Shift  Percentage:  The Class A-5  Prepayment  Shift
Percentage for any Distribution Date will be the percentage indicated below:

Distribution Date Occurring In            Class A-5 Prepayment Shift Percentage
- ------------------------------            -------------------------------------

September 1996 through August 2001....               0%
September 2001 through August 2002....              30%
September 2002 through August 2003....              40%
September 2003 through August 2004....              60%
September 2004 through August 2005....              80%
September 2004 and thereafter.........             100%

     Class A-5 Priority Amount: For any Distribution Date, the lesser of (i) the
Class A Subclass  Principal  Balance of the Class A-5  Certificates and (ii) the
sum of (A) the  product of (1) the Class A-5  Percentage  and (2) the  Scheduled
Principal  Amount and (B) the product of (1) the Class A-5  Percentage,  (2) the
Class A-5 Prepayment Shift Percentage, and (3) the Unscheduled Principal Amount.

     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-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-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 Accretion  Termination Date: The earlier of (i) the Distribution
Date  following the  Distribution  Date on which the Class A Subclass  Principal
Balance  of the Class  A-13  Certificates  has been  reduced to zero or (ii) the
Cross-Over Date.

     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-11 Accrual  Distribution  Amount: As to any Distribution Date prior
to the Class A-11 Accretion  Termination Date, an amount equal to the sum of (i)
the Class A Subclass  Interest  Percentage of the Class A-11 Certificates of the
Current Class A Interest  Distribution Amount and (ii) the amount distributed in
respect of the Class A-11  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-11 Accretion Termination Date, zero.

     Class A-11 Principal Accretion Amount: As to any Distribution Date prior to
the Class A-11  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-11 Accrual Distribution Amount.

     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-12 Component: Any of the Class A-12 IO A Component, Class A-12 IO B
Component,  Class A-12 IO C Component, Class A-12 TAC Accrual Component or Class
A-12 PO Component.

     Class A-12 IO A Component  Interest Accrual Amount:  As to any Distribution
Date the difference between (i) the sum of (A) the product of 1/12th of 0.35000%
and the Class A Subclass Principal Balance of the Class A-8 Certificates and (B)
the  product of 1/12th of the  0.17724008%  and the Class A  Subclass  Principal
Balance  of  the  Class  A-15  Certificates  and  (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-12 IO B Component  Interest Accrual Amount:  As to any Distribution
Date the difference  between (i) the sum of (A) the product of 1/12th of 0.6000%
and the Class A Subclass  Principal Balance of the Class A-9  Certificates,  (B)
the product of 1/12th of the 0.55000% and the Class A Subclass Principal Balance
of the Class A-14  Certificates and (C) the product of 1/12th of 0.07275992% and
the Class A Subclass  Principal  Balance of the Class A-15 Certificates and (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-12 IO C Component  Interest Accrual Amount:  As to any Distribution
Date the difference between (i) the product of 1/12th of 0.75000% the sum of the
Class A Subclass  Principal Balances of the Class A-2, Class A-10 and Class A-16
Certificates and (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-12 PO Component 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-12 PO Component  Optimal  Principal Amounts for all
prior  Distribution  Dates  exceeded the amounts  distributed  on the Class A-12
Certificates  with  respect  to the  Class  A-12  PO  Component  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-12  Certificates with respect to the
Class A-12 PO Component on prior Distribution Dates pursuant to Paragraph fourth
of  Section  4.01(a)(i).  On and after the  Cross-Over  Date,  the Class A-12 PO
Component  Deferred  Amount will be zero.  No interest  will accrue on any Class
A-12 PO Component Deferred Amount.

     Class A-12 PO Component  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-12 PO Component  Principal Balance:  As of the first  Determination
Date,  the  Original  Class  A-12  PO  Component  Principal  Balance.  As of any
subsequent  Determination  Date prior to the Cross-Over Date, the Original Class
A-12 PO Component  Principal Balance less the sum of (a) all amounts  previously
distributed  in  respect of the Class A-12 PO  Component  on prior  Distribution
Dates pursuant to Paragraphs  third clause (B) and fourth of Section  4.01(a)(i)
and (b) the Realized Losses previously  allocated to the Class A-12 PO Component
pursuant to Section 4.02(b).  On or after the Cross-Over Date, the Class A-12 PO
Component  Principal Balance will also be reduced on each  Determination Date by
an amount equal to the difference,  if any,  between the Class A-12 PO Component
Principal Balance as of such Determination Date and the Adjusted Pool Amount (PO
Portion) as of the preceding Distribution Date.

     Class  A-12  PO  Component  Principal   Distribution   Amount:  As  to  any
Distribution  Date,  the  aggregate  amount  distributable  to  the  Class  A-12
Certificates with respect to the Class A-12 PO Component  pursuant to Paragraphs
third clause (B) and fourth of Section 4.01(a)(i) on such Distribution Date.

     Class A-12 TAC Accrual Component Accretion Termination Date: The earlier of
(i) the Distribution  Date following the Distribution  Date on which the Class A
Subclass  Principal  Balance of the Class A-2  Certificates  has been reduced to
zero or (ii) the Cross-Over Date.

     Class  A-12  TAC  Accrual   Component   Distribution   Amount:  As  to  any
Distribution  Date  prior to the  Class  A-12 TAC  Accrual  Component  Accretion
Termination  Date,  an  amount  equal to the sum of (i) the  Component  Interest
Percentage  of the Class  A-12 TAC  Accrual  Component  of the  Current  Class A
Interest  Distribution Amount and (ii) the Component Shortfall Percentage of the
Class A-12 TAC Accrual  Component  of the amount  distributed  in respect of the
Class A-12  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-12
TAC Accrual Component Accretion Termination Date, zero.

     Class  A-12  TAC  Accrual  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 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).


     Class A-12 Accrual Component Loss Percentage: As to any Determination Date,
the  percentage  calculated  by  dividing  (i) the  lesser of the Class A-12 TAC
Accrual  Component  Principal  Balance of such  Component and the Original Class
A-12 TAC Accrual Component Principal Balance of such Component by (ii) the Class
A Loss Denominator  (determined without regard to any Class A Subclass Principal
Balance or Component Principal Balance of any Class A Subclass or the Class A-12
TAC Accrual  Component  not then  outstanding)  determined  as of the  preceding
Determination Date.

     Class A-12 TAC Accrual  Component  Principal  Accretion  Amount:  As to any
Distribution  Date  prior to the  Class  A-12 TAC  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-12 TAC Accrual  Component
Distribution Amount with respect to such Distribution Date.


     Class  A-12  Accrual  Component   Principal   Balance:   As  of  the  first
Determination  Date,  the Original  Class A-12 TAC Accrual  Component  Principal
Balance.  As of any subsequent  Determination Date prior to the Cross-Over Date,
the Original Class A-12 TAC Accrual Component  Principal  Balance  (increased by
the Class A-12 TAC Accrual Component  Principal Accretion Amount 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-12 TAC  Accrual  Component  Distribution
Amounts for such prior Distribution Dates and (b) the Realized Losses previously
allocated  to the  Class  A-12  TAC  Accrual  Component  with  respect  to prior
Distribution  Dates pursuant to Section 4.02(b).  After the Cross-Over Date, the
Class A-12 TAC Accrual Component  Principal Balance will also be reduced on each
Determination  Date by an amount  equal to the  product  of the  Class  A-12 TAC
Accrual  Component Loss  Percentage  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.

     Class A-13 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-13 and Exhibit D hereto.

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

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

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

     Class A-15 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-15 and Exhibit D hereto.

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

     Class A-16 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-16 and Exhibit D hereto.

     Class  A-16  Certificateholder:  The  registered  holder  of a  Class  A-16
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-L2 Interest:  A regular  interest in the Lower-Tier  REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

     Class A-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-L8 Interest Fraction: As of any Distribution Date, the fraction the
numerator of which is the amount of interest  accrued  pursuant to clause (A) of
the  definition  of Class A-12 IO A Component  Interest  Accrual  Amount and the
denominator  of which is the Class A-12 IO A Component  Interest  Accrual Amount
(determined without regard to clause (ii) of the definition thereof).

     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-L9 Interest Fraction: As of any Distribution Date, the fraction the
numerator  of which is an amount of interest  accrued  pursuant to Clause (A) of
the  definition  of Class A-12 IO B Component  Interest  Accrual  Amount and the
denominator  of which is the Class A-12 IO B Component  Interest  Accrual Amount
(determined without regard to clause (ii) of the definition thereof).

     Class A-L11 Interest:  A regular  interest in the Lower-Tier REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

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

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

     Class A-L14 Interest  Fraction:  As of any Distribution  Date, the fraction
the numerator of which is the amount of interest  accrued pursuant to clause (B)
of the definition of Class A-12 IO B Component  Interest  Accrual Amount and the
denominator  of which is the Class A-12 IO B Component  Interest  Accrual Amount
(determined without regard to clause (ii) of the definition thereof).

     Class A-L15 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-L15A Interest  Fraction:  As of any Distribution Date, the fraction
the numerator of which is the amount of interest  accrued pursuant to clause (B)
of the definition of Class A-12 IO A Component  Interest  Accrual Amount and the
denominator  of which is the Class A-12 IO A Component  Interest  Accrual Amount
(determined without regard to clause (ii) of the definition thereof).

     Class A-L15B Interest  Fraction:  As of any Distribution Date, the fraction
the numerator of which is the amount of interest  accrued pursuant to clause (C)
of the definition of Class A-12 IO B Component  Interest  Accrual Amount and the
denominator  of which is the Class A-12 IO B Component  Interest  Accrual Amount
(determined without regard to clause (ii) of the definition thereof).

     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-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 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 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, 7.750% 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
previously  allocated 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  Non-PO  Principal  Balance,  the  Class  A-12 PO  Component
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  previously  allocated 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  Non-PO  Principal  Balance,  the  Class  A-12 PO
Component  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  previously  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  Non-PO  Principal  Balance,  the  Class  A-12 PO
Component  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  previously  allocated 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  Non-PO  Principal  Balance,  the  Class  A-12 PO
Component  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  previously  allocated 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 Non-PO  Principal
Balance,  the Class A-12 PO Component  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, 7.750% 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 previously
allocated 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.

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

     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-12  IO A  Component,  Class  A-12 IO B
Component,  Class A-12 IO C Component, Class A-12 TAC Accrual Component or Class
A-12 PO Component.

     Component  Interest  Accrual Amount:  Each of the Class A-12 IO A Component
Interest Accrual Amount,  the Class A-12 IO B Component Interest Accrual Amount,
the Class A-12 IO C  Component  Interest  Accrual  Amount and the Class A-12 TAC
Accrual Component Interest Accrual Amount.

     Component Interest  Percentage:  As to any Distribution Date and Class A-12
Component (other than the Class A-12 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-12
Certificates) and each Component Interest Accrual Amount).

     Component  Interest Shortfall Amount: As to any Distribution Date and Class
A-12 Component (other than the Class A-12 PO Component),  the product of (a) the
Class A Subclass  Interest  Shortfall Amount of the Class A-12  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-12 Certificates.

     Component Interest Shortfall Distribution:  As to any Distribution Date and
Class A-12 Component  (other than the Class A-12 PO  Component),  the product of
(i) the  amount  that  would be  distributable  in  respect  of the  Class  A-12
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 Principal Balance: The Class A-12 TAC Accrual Component Principal
Balance and the Class A-12 PO Component Principal Balance.

     Component Rate: As to any Distribution  Date and the Class A-12 TAC Accrual
Component, 7.750% per annum.

     Component Shortfall Percentage:  As to any Distribution Date and Class A-12
Component (other than the Class A-12 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-12  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-12 Component (other than the Class A-12 PO Component),  the product of (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.

     Corporate Trust Office:  The principal  office of the Trustee,  at which at
any particular  time its corporate trust business shall be  administered,  which
office at the date of the  execution of this  instrument  is located at 180 East
Fifth Street, St. Paul, Minnesota 55101.

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

         Uncertificated Lower-Tier Interest            Corresponding Upper-Tier Class or Component
         ----------------------------------            -------------------------------------------

         <S>                                           <C>
         Class A-L1 Interest                           Class A-1 Certificates, Class A-3 Certificates, Class A-4
                                                       Certificates, Class A-5 Certificates, Class A-6
                                                       Certificates, Class A-7 Certificates and Class A-13
                                                       Certificates

         Class A-L2 Interest                           Class A-2 Certificates, Class A-10 Certificates, Class A-16
                                                       Certificates and Class A-12 IO C Component

         Class A-L8 Interest                           Class A-8 Certificates

         Class A-L9 Interest                           Class A-9 Certificates

         Class A-L11 Interest                          Class A-11 Certificates

         Class A-L12 Interest                          Class A-12 TAC Accrual Component

         Class A-L14 Interest                          Class A-14 Certificates

         Class A-L15 Interest                          Class A-15 Certificates

         Class A-LPO Interest                          Class A-12 PO 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
</TABLE>

     Cross-Over  Date:  The first  Distribution  Date with  respect to 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,  a  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,  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.

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

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

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

     Denomination: The amount, if any, specified on the face of each Certificate
representing  the  principal  portion of the Cut-Off  Date  Aggregate  Principal
Balance evidenced by such Certificate.

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

     Discount  Mortgage Loan: A Mortgage Loan with a Net Mortgage  Interest Rate
of less than 7.75%.

     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 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 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.

     Fitch: Fitch Investors Service, L.P., or its successor in interest.

     Fixed  Retained  Yield:  The fixed  percentage of interest on each Mortgage
Loan with a Mortgage  Interest  Rate greater than the sum of (a) 7.75%,  (b) the
Servicing  Fee  Rate  and (c) the  Master  Servicing  Fee  Rate,  which  will be
determined on a loan by loan basis and will equal the Mortgage  Interest Rate on
each Mortgage  Loan minus the sum of (a), (b) and (c),  which is not assigned to
and not part of the Trust Estate.

     Fixed Retained Yield Rate:  With respect to each Mortgage Loan, a per annum
rate equal to the greater of (a) zero and (b) the Mortgage Interest Rate on such
Mortgage Loan minus the sum of (i) 7.75%,  (ii) the Servicing Fee Rate and (iii)
the Master Servicing Fee Rate.

     FNMA: The Federal National Mortgage Association 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  $7,663,339.00  minus  the  aggregate  amount  of Fraud  Losses
allocated  solely to the Class B Certificates in accordance with Section 4.02(a)
since the Cut-Off Date, and (Y) from the first through fifth  anniversary of the
Cut-Off  Date, an amount equal to (1) the lesser of (a) the Fraud Loss Amount as
of the  most  recent  anniversary  of the  Cut-Off  Date  and (b)  1.00%  of the
aggregate  outstanding  principal balance of all of the Mortgage Loans as of the
most recent anniversary of the Cut-Off Date minus (2) the Fraud Losses allocated
solely to the Class B Certificates  in accordance with Section 4.02(a) since the
most recent anniversary of the Cut-Off Date. On and after the Cross-Over Date or
after the fifth  anniversary  of the Cut-Off Date the Fraud Loss Amount shall be
zero.

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

     Holder: See "Certificateholder."

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

     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,  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 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.

     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) Fixed Retained Yield, if applicable;

          (xvi) the Master Servicing Fee; and

          (xvii) 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.

     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,  (b) the Master  Servicing Fee Rate, as set forth in Section
11.29 with respect to such Mortgage Loan and (c) the Fixed  Retained Yield Rate,
if any, with respect to such Mortgage Loan. Any regular  monthly  computation of
interest  at such rate shall be based upon  annual  interest at such rate on the
applicable amount divided by twelve.

     Net 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 quotient  obtained
by dividing the Net Mortgage Interest Rate for such Mortgage Loan by 7.750%.

     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 or Trustee  determination,  an Officer's Certificate of the
Master Servicer or the Trustee 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, other than PHMC, 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; 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) any Class A Subclass  Principal  Balance
(other than with respect to the Class A-12 Certificates) or Component  Principal
Balance would be subject to further  reduction as a result of the third sentence
of the definition of Class A Subclass  Principal Balance or Component  Principal
Balance or, 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 (i) the  Original
Class A Subclass  Principal  Balances  of the Class A-1,  Class A-2,  Class A-3,
Class A-4,  Class A-5,  Class A-6,  Class A-7, Class A-8, Class A-9, Class A-10,
Class A-11,  Class A-13, Class A-14, Class A-15, Class A-16, Class A-R and Class
A-LR  Certificates  and (ii) the  Original  Class  A-12  TAC  Accrual  Component
Principal Balance as set forth in Section 11.08.

     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-12 PO Component Principal Balance: The Original Class A-12
PO Component Principal Balance, as set forth in Section 11.07.

     Original Class A-12 TAC Accrual Component  Principal Balance:  The Original
Class A-12 TAC  Accrual  Component  Principal  Balance,  as set forth in Section
11.08.

     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 11.19.

     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  Subordinated  Percentage:  The Subordinated  Percentage as of the
Cut-Off Date, as set forth in Section 11.09.

     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.

     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,  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 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 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.

     PHMC: The Prudential Home Mortgage Company, Inc.

     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 Fixed Retained  Yield,  if any,
          (ii) the applicable Servicing Fee and (iii) the Master Servicing Fee;

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

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

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

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

               (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.

     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
greater than 7.750%.

     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.

     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) 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.

     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
Fitch and S&P.  The Rating  Agency for the Class B-1,  Class B-2,  Class B-3 and
Class B-4  Certificates is Fitch. If any such agency or a successor is no longer
in existence, "Rating Agency" shall be such statistical credit rating agency, or
other comparable Person,  designated by the Seller,  notice of which designation
shall be given to the Trustee and the Master Servicer.  References herein to the
highest  short-term  rating  category of a Rating  Agency shall mean F-1+ in the
case of  Fitch,  A-1+ in the  case of S&P and in the  case of any  other  Rating
Agency  shall mean its  equivalent  of such  ratings.  References  herein to the
highest long-term rating categories of a Rating Agency shall mean AAA and in the
case of any other Rating Agency shall mean its equivalent of such rating without
any plus or minus.

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

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

     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.

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

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

     Scheduled Principal Balance: As to any Mortgage Loan and Distribution Date,
the  principal  balance  of such  Mortgage  Loan as of the Due Date in the month
preceding the month of such  Distribution  Date as specified in the amortization
schedule  at  the  time  relating   thereto   (before  any  adjustment  to  such
amortization  schedule  by  reason  of  any  bankruptcy  (other  than  Deficient
Valuations)  or similar  proceeding or any moratorium or similar waiver or grace
period) after giving effect to (A) Unscheduled  Principal  Receipts  received or
applied by the 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 Norwest Mortgage,  Citicorp  Mortgage,  Inc.,  Suntrust
Mortgage, Inc., HomeSide Lending, First Union Mortgage Corporation,  Countrywide
Home Loans, Inc. and Cimarron Mortgage,  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.

     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,  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
$3,898,940.00 minus the sum of (i) the aggregate amount of Special Hazard Losses
allocated  solely to the Class B Certificates in accordance with Section 4.02(a)
and (ii) the  Special  Hazard  Adjustment  Amount  (as  defined  below)  as most
recently  calculated.  For each  anniversary  of the Cut-Off  Date,  the Special
Hazard  Adjustment  Amount shall be calculated and shall be equal to the amount,
if any, by which the amount calculated in accordance with the preceding sentence
(without giving effect to the deduction of the Special Hazard  Adjustment Amount
for such  anniversary)  exceeds  the  greater of (A) the  product of the Special
Hazard Percentage for such anniversary  multiplied by the outstanding  principal
balance of all the Mortgage Loans on the Distribution Date immediately preceding
such  anniversary,  (B) twice the outstanding  principal balance of the Mortgage
Loan in the Trust Estate which has the largest outstanding  principal balance on
the Distribution Date immediately  preceding such anniversary and (C) that which
is necessary to maintain the original  ratings on the  Certificates,  other than
the Class B  Certificates,  as evidenced by letters to that effect  delivered by
Rating  Agencies  to the  Master  Servicer  and the  Trustee.  On and  after the
Cross-Over Date, the Special Hazard Loss Amount shall be zero.

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

     Startup Day: As defined in Section 2.05.

     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-13,  Class  A-14,  Class A-15,  Class A-16,  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.

     TAC   Certificates:   Any  of  the  Class  A-7   Certificates,   Class  A-8
Certificates,  Class A-9  Certificates,  Class A-14  Certificates and Class A-15
Certificates.

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

     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 (other than any Fixed Retained Yield), such amounts as may
be held  from  time to time in the  Certificate  Account  (other  than any Fixed
Retained  Yield),  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 Bank National Association,  a national banking association,
or any successor trustee appointed as herein provided.

     Uncertificated  Lower-Tier  Interests:  Any of the Class A-L1,  Class A-L2,
Class A-L8,  Class A-L9,  Class A-L11,  Class A-L12,  Class A-L14,  Class A-L15,
Class A-LPO,  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 Mortgagor payment or other recovery of
principal 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,  including, without limitation,  Principal
Prepayments,  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 and excluding any Net Foreclosure
Profits and  proceeds of a repurchase  of a Mortgage  Loan by the Seller and any
Substitution Principal Amounts.

     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 1996-4 Certificates. The aggregate Voting Interests of
each Subclass of Class A  Certificates  on any date will be equal to the product
of (a) 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  less,  in  the  case  of the  Class  A-12
Certificates,  the Component Principal Balance of the Class A-12 PO Component on
such date, by the Class A Non-PO Principal  Balance on such date. In addition to
the Voting Interest of the Class A-12 Certificates determined in accordance with
the  preceding  sentence,  the Class A-12  Certificates  will be entitled to the
Class A Voting Interest represented by clause (B) of the definition thereof. 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 (other than
the  portion,  if any,  representing  the Fixed  Retained  Yield) and  principal
received  by the  Seller on or with  respect  to the  Mortgage  Loans  after the
Cut-Off Date (and  including  scheduled  payments of principal  and interest due
after the Cut-Off  Date but received by the Seller on or before the Cut-Off Date
and Unscheduled  Principal Receipts received or applied on the Cut-Off Date, but
not including payments of principal and interest due on the Mortgage Loans on or
before the Cut-Off Date), (b) the Insurance Policies, (c) the obligations of the
Servicers under the Servicing  Agreements with respect to the Mortgage Loans and
(d) proceeds of all the foregoing.

     In connection with such assignment,  the Seller shall, with respect to each
Mortgage Loan,  deliver,  or cause to be delivered,  to the 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.  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.

     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 (of
which S&P will be an addressee or with respect to which S&P shall be delivered a
reliance  letter) 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  referred to in 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 less any Fixed Retained Yield through the
last day of the month in which such repurchase takes place or (ii) if within two
years  of the  Startup  Day,  or  such  other  period  permitted  by  the  REMIC
Provisions,  substitute  for any  Mortgage  Loan to which such  material  defect
relates,  a new  mortgage  loan  (a  "Substitute  Mortgage  Loan")  having  such
characteristics  so that the  representations  and  warranties of the Seller set
forth in Section 2.03(b) hereof (other than Section  2.03(b)(i))  would not have
been  incorrect had such  Substitute  Mortgage Loan  originally  been a Mortgage
Loan. In no event shall any  Substitute  Mortgage Loan have an unpaid  principal
balance,  as of the date of substitution,  greater than the Scheduled  Principal
Balance  (reduced by the  scheduled  payment of principal due on the Due Date in
the month of substitution) of the Mortgage Loan for which it is substituted.  In
addition,  such Substitute  Mortgage Loan shall have a Loan-to-Value  Ratio less
than or equal to and a Mortgage Interest Rate equal to that of the Mortgage Loan
for which it is substituted.

     In the case of a repurchased Mortgage Loan or property,  the purchase price
shall be deposited by the Seller in the  Certificate  Account  maintained by the
Master Servicer  pursuant to Section 3.01. In the case of a Substitute  Mortgage
Loan,  the Owner  Mortgage Loan File relating  thereto shall be delivered to the
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,  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 13 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; and

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

     Notwithstanding the foregoing, no representations or warranties are made by
the  Seller  as to the  absence  or  effect of  hazardous  wastes  or  hazardous
substances on any of the Mortgaged Properties or on the lien of any Mortgage. 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 Trustee 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-12,  Class  A-R and  Class  A-LR  Certificates),  the Class M
Certificates,  the Subclasses of Class B Certificates, and each Component of the
Class A-12  Certificates  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
Closing Date is hereby  designated  as the "Startup Day" of the REMIC within the
meaning of Code Section  860G(a)(9).  The Seller hereby  further  designates the
Class AL-1  Interest,  Class A-L2  Interest,  Class  A-L8  Interest,  Class A-L9
Interest,  Class A-L11  Interest,  Class A-L12  Interest,  Class A-L14 Interest,
Class A-L15  Interest,  Class A-LPO Interest,  Class A-LUR Interest,  Class B-L1
Interest,  Class B-L2 Interest,  Class B-L3 Interest, Class B-L4 Interest, Class
B-L5 Interest and Class 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 "latest possible  maturity date" of the regular  interests in
the Upper-Tier  REMIC and Lower-Tier REMIC is September 25, 2026 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 provided,  however, that any portion of
          Nonrecoverable  Advances  representing  Fixed  Retained Yield shall be
          reimbursable only from amounts  constituting  Fixed Retained Yield and
          not from the assets of the Trust Estate;

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

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

               (v) to reimburse the Master Servicer, any Servicer or the 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;

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

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

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

Section 3.03. Advances by Master Servicer and 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 an
adverse effect on  Certificateholders  may be established through various means,
including  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.  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.

     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,  less any Fixed Retained Yield for such Mortgage Loan,
through  the last day of the month in which  such  repurchase  occurs.  Upon the
receipt of such purchase price, the Master Servicer shall provide to the 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-12 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 prior to their respective Accretion Termination
Dates,  an amount equal to the amount that would otherwise be  distributable  in
respect  of  interest  to the Class  A-11  Certificates  and to the  Class  A-12
Certificates  with respect to the Class A-12 TAC Accrual  Component will instead
be  distributed in reduction of the Class A Subclass  Principal  Balances of the
Accretion  Directed  Certificates  and  the  Class  A-11  Certificates  and  the
Component  Principal  Balance  of  the  Class  A-12  TAC  Accrual  Component  in
accordance with Section 4.01(b).

     second, to the Subclasses of Class A Certificates,  pro rata based on their
respective unpaid Class A Subclass Interest Shortfall  Amounts,  in an aggregate
amount  up to  the  sum of the  previously  unpaid  Class  A  Subclass  Interest
Shortfall Amounts; provided that prior to their respective Accretion Termination
Dates,  an amount equal to the amount that would otherwise be  distributable  in
respect of interest  shortfalls to the Class A-11  Certificates and to the Class
A-12  Certificates  with  respect to the Class A-12 TAC Accrual  Component  will
instead be distributed in reduction of the Class A Subclass  Principal  Balances
of the Accretion  Directed  Certificates and the Class A-11 Certificates and the
Component  Principal  Balance  of  the  Class  A-12  TAC  Accrual  Component  in
accordance with Section 4.01(b).

     third, concurrently, to the Class A Certificates (other than the Class A-12
Certificates  with  respect to the Class A-12 PO  Component)  and the Class A-12
Certificates with respect to the Class A-12 PO Component,  pro rata based on the
Class A Non-PO Optimal  Principal Amount and the Class A-12 PO Component Optimal
Principal Amount, (A) to the Subclasses of Class A Certificates  (other than the
Class A-12  Certificates  with  respect to the Class A-12 PO  Component),  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-12
Certificates  with respect to the Class A-12 PO Component in an amount up to the
Class A-12 PO Component Optimal Principal Amount;

     fourth,  to the Class A-12  Certificates  with respect to the Class A-12 PO
Component in an amount up to the Class A-12 PO Component  Deferred  Amount,  but
only from amounts  otherwise  distributable  (without  regard to this  Paragraph
fourth) to the Subclasses of Class B  Certificates  in reverse  numerical  order
pursuant to priorities  twenty-second,  nineteenth,  sixteenth,  thirteenth  and
tenth  of this  Pool  Distribution  Amount  Allocation  and  then  from  amounts
otherwise distributable (without regard to this Paragraph fourth) to the Class M
Certificates  pursuant  to  priority  seventh of this Pool  Distribution  Amount
Allocation;

     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 previously unpaid
Class M Interest Shortfall Amounts;

     seventh, to the Class M Certificates in an amount up to the Class M Optimal
Principal Amount;  provided,  however, that the amount distributable pursuant to
this priority seventh to the Class M Certificates will be reduced by the amount,
if any,  otherwise  distributable  as principal  hereunder used to pay the Class
A-12 PO Component Deferred Amount in accordance with priority fourth;

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

     ninth,  to the  Class  B-1  Certificates  in an amount up to the sum of the
previously unpaid Class B Subclass Interest Shortfall Amounts for such Subclass;

     tenth,  to the Class B-1  Certificates  in an amount up to the  Subclass  B
Optimal Principal Amount for such Subclass;  provided,  however, that the amount
distributable  pursuant to this priority tenth will be reduced by the amount, if
any, otherwise  distributable as principal  hereunder used to pay the Class A-12
PO Component Deferred Amount in accordance with priority fourth;

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

     twelfth,  to the Class B-2  Certificates  in an amount up to the sum of the
previously unpaid Class B Subclass Interest Shortfall Amounts for such Subclass;

     thirteenth, to the Class B-2 Certificates in an amount up to the Subclass B
Optimal Principal Amount for such Subclass;  provided,  however, that the amount
distributable  pursuant  to this  priority  thirteenth  will be  reduced  by the
amount, if any, otherwise  distributable as principal  hereunder used to pay the
Class A-12 PO Component Deferred Amount in accordance with priority fourth;

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

     fifteenth,  to the Class B-3 Certificates in an amount up to the sum of the
previously unpaid Class B Subclass Interest Shortfall Amounts for such Subclass;

     sixteenth,  to the Class B-3 Certificates in an amount up to the Subclass B
Optimal Principal Amount for such Subclass;  provided,  however, that the amount
distributable pursuant to this priority sixteenth will be reduced by the amount,
if any,  otherwise  distributable  as principal  hereunder used to pay the Class
A-12 PO Component Deferred Amount in accordance with priority fourth;

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

     eighteenth, to the Class B-4 Certificates in an amount up to the sum of the
previously unpaid Class B Subclass Interest Shortfall Amounts for such Subclass;

     nineteenth, to the Class B-4 Certificates in an amount up to the Subclass B
Optimal Principal Amount for such Subclass;  provided,  however, that the amount
distributable  pursuant  to this  priority  nineteenth  will be  reduced  by the
amount, if any, otherwise  distributable as principal  hereunder used to pay the
Class A-12 PO Component Deferred Amount in accordance with priority fourth;

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

     twenty-first,  to the Class B-5  Certificates in an amount up to the sum of
the  previously  unpaid  Class B Subclass  Interest  Shortfall  Amounts for such
Subclass; and

     twenty-second,  to  the  Class  B-5  Certificates  in an  amount  up to the
Subclass B Optimal Principal Amount for such Subclass;  provided,  however, that
the amount distributable pursuant to this priority twenty-second will be reduced
by the amount, if any,  otherwise  distributable as principal  hereunder used to
pay the Class A-12 PO Component  Deferred  Amount in  accordance  with  priority
fourth; and

     Notwithstanding the foregoing,  after the Principal Balance of any Subclass
(other  than the Class  A-12,  Class A-R or Class  A-LR  Certificates)  has been
reduced to zero or, in the case of the Class A-12 Certificates,  after the later
to occur of (i) the Principal  Balance of such Class A Subclass being reduced to
zero or (ii) the  Principal  Balances  of the Class A-2,  Class A-8,  Class A-9,
Class A-10, Class A-14, Class A-15 and Class A-16 Certificates  being reduced to
zero, such 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-12 Certificates with respect to the Class A-12 PO Component),  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-12  Certificates  with respect to the Class A-12 PO  Component)
pro rata based on Class A Subclass  Principal  Balance (less, in the case of the
Class A-12 Certificates, the Class A-12 PO Component Principal Balance).

     (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 (other than the Class A-L8 Interest,  Class
A-L9  Interest,  Class  A-L14  Interest,  Class A-L15  Interest  and Class A-LPO
Interest) shall receive  distributions in respect of interest in an amount equal
to the (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  thereon. The Class A-L8 Interest shall receive
distributions  in respect of interest  in an amount  equal to the sum of (i) the
amount of interest  distributed on the Class A-8 Certificates and (ii) an amount
equal to the  product  of the Class  A-L8  Interest  Fraction  and the amount of
interest  distributed on the Class A-12 IO A Component.  The Class A-L9 Interest
shall receive distributions in respect of interest in an amount equal to the sum
of (i) the amount of interest distributed on the Class A-9 Certificates and (ii)
an amount  equal to the  product of the Class  A-L9  Interest  Fraction  and the
amount of interest distributed on the Class A-12 IO B Component. The Class A-L14
Interest shall receive  distributions  in respect of interest in an amount equal
to the  sum of  (i)  the  amount  of  interest  distributed  on the  Class  A-14
Certificates and (ii) an amount equal to the product of the Class A-L14 Interest
Fraction  and  the  amount  of  interest  distributed  on the  Class  A-12  IO B
Component.  The Class A-L15 Interest shall receive  distributions  in respect of
interest in an amount equal to the sum of (i) the amount of interest distributed
on the Class A-15 Certificates, (ii) an amount equal to the product of the Class
A-L15A  Interest  Fraction and the amount of interest  distributed  on the Class
A-12 IO A Component and (iii) an amount equal to the product of the Class A-L15B
Interest Fraction and the amount of interest  distributed on the Class A-12 IO B
Component.  Such amounts distributed to the Uncertificated  Lower-Tier Interests
in respect of principal and interest with respect to any  Distribution  Date are
referred to herein collectively as the "Lower-Tier Distribution Amount."

     As of any date,  the principal  balance of each  Uncertificated  Lower-Tier
Interest  equals the Class A Subclass  Principal  Balance,  Component  Principal
Balance, 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 initial principal  balance of each  Uncertificated
Lower-Tier  Interest  equals the Original  Class A Subclass  Principal  Balance,
Original  Component  Principal  Balance,  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  pass-through  rate  with  respect  to each  Uncertificated  Lower-Tier
Interest (other than the Class A-LPO  Interest) will be 7.750% per annum.  Prior
to the  Cross-Over  Date,  interest  will  accrue in respect of the Class  A-L11
Interest  and Class A-L12  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-11  Certificates  and the  Component
Principal  Balance of the Class A-12 TAC Accrual  Component,  respectively.  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) On each  Distribution  Date occurring prior to the Class A-11 Accretion
Termination Date, an amount equal to the Class A-11 Accrual Distribution Amount,
if any, for such Determination Date will be allocated  sequentially to the Class
A-13 Certificates and Class A-11 Certificates,  in that order, until the Class A
Subclass Principal Balance of each such Subclass has been reduced to zero.

     On each  Distribution  Date  occurring  prior to the Class A-12 TAC Accrual
Component  Accretion  Termination  Date,  an amount  equal to the Class A-12 TAC
Accrual Component  Distribution  Amount, if any, for such Distribution Date will
be  allocated  sequentially  to the Class  A-10  Certificates,  the  Class  A-16
Certificates,  the  Class  A-2  Certificates  and the  Class  A-12  TAC  Accrual
Component,  in that order,  until the Class A Subclass Principal Balance of each
such Subclass and the Component  Principal  Balance of such  Component have been
reduced to zero.

     On each  Distribution Date prior to the Cross-Over Date, the Class A Non-PO
Principal  Amount will be allocated  among and  distributed  in reduction of the
Class A Subclass Principal Balances of the Class A Certificates  (other than the
Class A-12  Certificates) and the Component  Principal Balance of the Class A-12
TAC Accrual Component:

     first, to the Class A-5 Certificates, up to the Class A-5 Priority Amount;

     second, concurrently as follows:

     (A) 14.09588399% sequentially as follows:

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

          (ii) concurrently,  15.85138132%  to the  Class A-1  Certificates  and
               84.14861868%  to the  Class  A-6  Certificates,  until the sum of
               their Class A Subclass  Principal  Balances  has been  reduced to
               36.3608831098%  of the sum of  their  Original  Class A  Subclass
               Principal Balances;

          (iii)concurrently,  12.73828787%  to the  Class A-1  Certificates  and
               87.26171213%  to the  Class A-6  Certificates,  until the Class A
               Subclass Principal Balance of the Class A-1 Certificates has been
               reduced to zero;

          (iv) concurrently,  79.94991891%  to the  Class A-6  Certificates  and
               20.05008109%  to the  Class A-3  Certificates,  until the Class A
               Subclass Principal Balance of the Class A-6 Certificates has been
               reduced to zero;

          (v)  to the  Class  A-3  Certificates,  until  the  Class  A  Subclass
               Principal Balance thereof has been reduced to zero;

          (vi) to the  Class  A-4  Certificates,  until  the  Class  A  Subclass
               Principal Balance thereof has been reduced to zero;

     (B) 85.90411601% sequentially as follows:

          (i)  concurrently,   8.83419499%   to  the  Class  A-7   Certificates,
               72.08577066% to the Class A-8  Certificates  and  19.08003435% to
               the Class  A-15  Certificates,  until the Class A-8  Certificates
               have  received  their TAC  Principal  Amount with respect to such
               Distribution Date;

          (ii) concurrently,   11.04279433%  to  the  Class  A-7   Certificates,
               9.71918183% to the Class A-9  Certificates,  64.52991885%  to the
               Class  A-14  Certificates  and  14.70810500%  to the  Class  A-15
               Certificates,  up to their respective TAC Principal  Amounts with
               respect to such Distribution Date;

          (iii)to the Class A-12 TAC Accrual Component,  up to its TAC Principal
               Amount with respect to such Distribution Date;

          (iv) sequentially,  to the Class A-13 and Class A-11 Certificates,  in
               that order,  until the Class A Subclass Principal Balance of each
               such Subclass has been reduced to zero;

          (v)  concurrently,   8.83419499%   to  the  Class  A-7   Certificates,
               72.08577066% to the Class A-8  Certificates  and  19.08003435% to
               the Class A-15 Certificates,  without regard to the TAC Principal
               Amount  of the  Class  A-8  Certificates  and  until  the Class A
               Subclass Principal Balance of the Class A-8 Certificates has been
               reduced to zero;

          (vi) concurrently,   11.04279433%  to  the  Class  A-7   Certificates,
               9.71918183% to the Class A-9  Certificates,  64.52991885%  to the
               Class  A-14  Certificates  and  14.70810500%  to the  Class  A-15
               Certificates,  without regard to their TAC Principal  Amounts and
               until  the  Class A  Subclass  Principal  Balance  of  each  such
               Subclass has been reduced to zero;

          (vii)sequentially,  to the  Class  A-10,  Class  A-16  and  Class  A-2
               Certificates, in that order, until the Class A Subclass Principal
               Balance of each such Subclass has been reduced to zero;

          (viii)to the Class A-12 TAC Accrual  Component,  without regard to its
               TAC Principal  Amount and until the Component  Principal  Balance
               thereof has been reduced to zero; and

     third, to the Class A-5 Certificates,  until the Class A Subclass Principal
Balance thereof has been reduced to zero.

     As used above, the "TAC Principal Amount" for any Distribution Date and for
any Subclass of TAC Certificates and the Class A-12 TAC Accrual  Component means
the amount, if any, that would reduce the Class A Subclass  Principal Balance of
such Subclass or Component Principal Balance of such Component to the percentage
of its initial Class A Subclass Principal Balance or initial Component Principal
Balance shown in the following tables with respect to such Distribution Date.

     The  following  tables set forth for each  Distribution  Date the  targeted
Class A Subclass Principal Balance and the targeted Component  Principal Balance
of the TAC Certificates and the Class A-12 TAC Accrual Component, each expressed
as a percentage  of the initial  Class A Subclass  Principal  Balance or initial
Component Principal Balance, as the case may be.





<PAGE>



                                Targeted Balances

                  Targeted Class A Subclass Principal Balances
          as Percentages of Initial Class A Subclass Principal Balances

                             Class A-7 Certificates
<TABLE>
<CAPTION>


                       Percentage of                           Percentage of                          Percentage of
                       Initial Class A                         Initial Class                          Initial Class A
                       Subclass                                A Subclass                             Subclass
                       Principal                               Principal                              Principal
Distribution Date      Balance           Distribution Date     Balance          Distribution Date     Balance
- -----------------      -------           -----------------     -------          -----------------     -------
<S>                      <C>                  <C>               <C>             <C>                    <C>         
September 1996.....      99.71475211%    June 1999.........     63.87077168%    February 2002.....      24.30539498%
October 1996.......      99.37351635     July 1999.........     62.46256408     March 2002........      23.25615748
November 1996......      98.97642343     August 1999.......     61.07295150     April 2002........      22.22184013
December 1996......      98.52367143     September 1999....     59.70169942     May 2002..........      21.20224904
January 1997.......      98.01552599     October 1999......     58.34857618     June 2002.........      20.19719270
February 1997......      97.45232029     November 1999.....     57.01335325     July 2002.........      19.20648199
March 1997.........      96.83449012     December 1999.....     55.69580485     August 2002.......      18.22993034
April 1997.........      96.16250200     January 2000......     54.39570811     September 2002....      17.29853969
May 1997...........      95.43688911     February 2000.....     53.11284314     October 2002......      16.38059551
June 1997..........      94.65825097     March 2000........     51.84699265     November 2002.....      15.47592017
July 1997..........      93.82725252     April 2000........     50.59794221     December 2002.....      14.58433835
August 1997........      92.94462355     May 2000..........     49.36548021     January 2003......      13.70567708
September 1997.....      92.01115770     June 2000.........     48.14939757     February 2003.....      12.83976555
October 1997.......      91.02771123     July 2000.........     46.94948793     March 2003........      11.98643513
November 1997......      89.99520214     August 2000.......     45.76554770     April 2003........      11.14551939
December 1997......      88.91460851     September 2000....     44.59737576     May 2003..........      10.31685408
January 1998.......      87.78699664     October 2000......     43.44477347     June 2003.........       9.50027690
February 1998......      86.61350689     November 2000.....     42.30754491     July 2003.........       8.69562778
March 1998.........      85.39539506     December 2000.....     41.18549658     August 2003.......       7.90274873
April 1998.........      84.13401563     January 2001......     40.07843746     September 2003....       7.17934642
May 1998...........      82.83072319     February 2001.....     38.74161436     October 2003......       6.46652964
June 1998..........      81.48698545     March 2001........     37.39455305     November 2003.....       5.76415463
July 1998..........      80.10430439     April 2001........     36.06553001     December 2003.....       5.07207937
August 1998........      78.68474679     May 2001..........     34.75431855     January 2004......       4.39016394
September 1998.....      77.23054260     June 2001.........     33.46069468     February 2004.....       3.71827003
October 1998.......      75.74575704     July 2001.........     32.18443732     March 2004........       3.05626124
November 1998......      74.23922735     August 2001.......     30.92532828     April 2004........       2.40400298
December 1998......      72.71915854     September 2001....     29.78235299     May 2004..........       1.76136240
January 1999.......      71.19915865     October 2001......     28.65551561     June 2004.........       1.12820835
February 1999......      69.69435028     November 2001.....     27.54460665     July 2004.........       0.50441146
March 1999.........      68.20935588     December 2001.....     26.44941927     August 2004
April 1999.........      66.74392538     January 2002......     25.36974927     and thereafter....       0.00000000
</TABLE>

<PAGE>



                  Targeted Class A Subclass Principal Balances
          as Percentages of Initial Class A Subclass Principal Balances

                             Class A-8 Certificates
<TABLE>
<CAPTION>


                       Percentage of                           Percentage of                          Percentage of
                       Initial Class A                         Initial Class                          Initial Class A
                       Subclass                                A Subclass                             Subclass
                       Principal                               Principal                              Principal
Distribution Date      Balance           Distribution Date     Balance          Distribution Date     Balance
- -----------------      -------           -----------------     -------          -----------------     -------
<S>                      <C>             <C>                    <C>             <C>                      <C>         
September 1996.....      99.52486863%    April 1998........     73.57236676%    October 1999......       30.62210776%
October 1996.......      98.95647948     May 1998..........     71.40150020     November 1999.....       28.39805524
November 1996......      98.29505025     June 1998.........     69.16326473     December 1999.....       26.20344283
December 1996......      97.54091087     July 1998.........     66.86016228     January 2000......       24.03789935
January 1997.......      96.69450379     August 1998.......     64.49563533     February 2000.....       21.90105836
February 1997......      95.75638399     September 1998....     62.07339828     March 2000........       19.79255807
March 1997.........      94.72727740     October 1998......     59.60022251     April 2000........       17.71204132
April 1997.........      93.60796103     November 1998.....     57.09082798     May 2000..........       15.65915549
May 1997...........      92.39932306     December 1998.....     54.55888161     June 2000.........       13.63355245
June 1997..........      91.10236202     January 1999......     52.02705013     July 2000.........       11.63488852
July 1997..........      89.71818556     February 1999.....     49.52052273     August 2000.......        9.66282440
August 1997........      88.24800927     March 1999........     47.04699907     September 2000....        7.71702513
September 1997.....      86.69315499     April 1999........     44.60606261     October 2000......        5.79716002
October 1997.......      85.05504913     May 1999..........     42.19730210     November 2000.....        3.90290257
November 1997......      83.33522063     June 1999.........     39.82031152     December 2000.....        2.03393049
December 1997......      81.53529875     July 1999.........     37.47469003     January 2001......        0.18992557
January 1998.......      79.65705962     August 1999.......     35.16004189     February 2001
February 1998......      77.70240267     September 1999....     32.87597637     and thereafter....        0.00000000
March 1998.........      75.67341963
</TABLE>

                             Class A-9 Certificates

<TABLE>
<CAPTION>

                       Percentage of                           Percentage of                          Percentage of
                       Initial Class A                         Initial Class                          Initial Class A
                       Subclass                                A Subclass                             Subclass
                       Principal                               Principal                              Principal
Distribution Date      Balance           Distribution Date     Balance          Distribution Date     Balance
- -----------------      -------           -----------------     -------          -----------------     -------
<S>                      <C>             <C>                    <C>             <C>                      <C>        
Up to and including                      April 2002........     55.60406781%    July 2003.........       21.75842667%
January 2001.......      100.00000000%   May 2002..........     53.05282036     August 2003.......       19.77446390
February 2001......      96.94027760     June 2002.........     50.53794224     September 2003....       17.96434782
March 2001.........      93.56962557     July 2002.........     48.05896008     October 2003......       16.18071914
April 2001.........      90.24410957     August 2002.......     45.61540699     November 2003.....       14.42321801
May 2001...........      86.96316195     September 2002....     43.28485716     December 2003.....       12.69148924
June 2001..........      83.72622254     October 2002......     40.98795314     January 2004......       10.98518262
July 2001..........      80.53273825     November 2002.....     38.72425085     February 2004.....        9.30395215
August 2001........      77.38216280     December 2002.....     36.49331172     March 2004........        7.64745654
September 2001.....      74.52218007     January 2003......     34.29470258     April 2004........        6.01535886
October 2001.......      71.70257828     February 2003.....     32.12799618     May 2004..........        4.40732687
November 2001......      68.92283296     March 2003........     29.99277053     June 2004.........        2.82303228
December 2001......      66.18242653     April 2003........     27.88860929     July 2004.........        1.26215161
January 2002.......      63.48084810     May 2003..........     25.81510122     August 2004
February 2002......      60.81759315     June 2003.........     23.77184060     and thereafter....        0.00000000
March 2002.........      58.19216351
</TABLE>


<PAGE>



                      Targeted Component Principal Balances
              as Percentages of Initial Component Principal Balance

                        Class A-12 TAC Accrual Component
<TABLE>
<CAPTION>

                       Percentage of                           Percentage of                          Percentage of
                       Initial                                 Initial                                Initial
                       Component                               Component                              Component
                       Principal                               Principal                              Principal
Distribution Date      Balance           Distribution Date     Balance          Distribution Date     Balance
- -----------------      -------           -----------------     -------          -----------------     -------
<S>                     <C>              <C>                   <C>             <C>                     <C>
September 1996.....     100.64583334%    December 2001.....    150.98409741%    March 2007........     101.99863236%
October 1996.......     101.29583768     January 2002......    151.95920305     April 2007........      99.98810750
November 1996......     101.95003995     February 2002.....    152.94060622     May 2007..........      98.00432692
December 1996......     102.60846731     March 2002........    153.92834765     June 2007.........      96.04694579
January 1997.......     103.27114699     April 2002........    154.92246824     July 2007.........      94.11562346
February 1997......     103.93810649     May 2002..........    155.92300915     August 2007.......      92.21002377
March 1997.........     104.60937342     June 2002.........    156.93001194     September 2007....      90.32981474
April 1997.........     105.28497561     July 2002.........    157.94351827     October 2007......      88.47466871
May 1997...........     105.96494108     August 2002.......    158.96357015     November 2007.....      86.64426210
June 1997..........     106.64929801     September 2002....    159.99020986     December 2007.....      84.83827548
July 1997..........     107.33807471     October 2002......    161.02347996     January 2008......      83.05639353
August 1997........     108.03129977     November 2002.....    162.06342328     February 2008.....      81.29830485
September 1997.....     108.72900191     December 2002.....    163.11008289     March 2008........      79.56370214
October 1997.......     109.43121007     January 2003......    164.16350218     April 2008........      77.85228193
November 1997......     110.13795329     February 2003.....    165.22372478     May 2008..........      76.16374457
December 1997......     110.84926092     March 2003........    166.29079469     June 2008.........      74.49779430
January 1998.......     111.56516239     April 2003........    167.36475605     July 2008.........      72.85413914
February 1998......     112.28568740     May 2003..........    168.44565346     August 2008.......      71.23249078
March 1998.........     113.01086577     June 2003.........    169.53353161     September 2008....      69.63256459
April 1998.........     113.74072764     July 2003.........    170.62843568     October 2008......      68.05407961
May 1998...........     114.47530315     August 2003.......    171.73041099     November 2008.....      66.49675838
June 1998..........     115.21462283     September 2003....    172.83950323     December 2008.....      64.96032710
July 1998..........     115.95871727     October 2003......    173.95575835     January 2009......      63.44451534
August 1998........     116.70761732     November 2003.....    175.07922264     February 2009.....      61.94905612
September 1998.....     117.46135401     December 2003.....    176.20994262     March 2009........      60.47368600
October 1998.......     118.21995858     January 2004......    177.34796516     April 2009........      59.01814473
November 1998......     118.98346249     February 2004.....    178.49333743     May 2009..........      57.58217547
December 1998......     119.75189735     March 2004........    179.64610690     June 2009.........      56.16552467
January 1999.......     120.52529501     April 2004........    180.80632136     July 2009.........      54.76794193
February 1999......     121.30368757     May 2004..........    181.97402886     August 2009.......      53.38918014
March 1999.........     122.08710722     June 2004.........    183.14927778     September 2009....      52.02899527
April 1999.........     122.87558644     July 2004.........    184.33211686     October 2009......      50.68714642
May 1999...........     123.66915793     August 2004.......    183.65276562     November 2009.....      49.36339581
June 1999..........     124.46785457     September 2004....    180.23939407     December 2009.....      48.05750863
July 1999..........     125.27170947     October 2004......    176.87485681     January 2010......      46.76925307
August 1999........     126.08075593     November 2004.....    173.55848661     February 2010.....      45.49840036
September 1999.....     126.89502749     December 2004.....    170.28962513     March 2010........      44.24472452
October 1999.......     127.71455788     January 2005......    167.06762276     April 2010........      43.00800255
November 1999......     128.53938105     February 2005.....    163.89183858     May 2010..........      41.78801430
December 1999......     129.36953122     March 2005........    160.76164012     June 2010.........      40.58454236
January 2000.......     130.20504277     April 2005........    157.67640345     July 2010.........      39.39737215
February 2000......     131.04595033     May 2005..........    154.63551286     August 2010.......      38.22629182
March 2000.........     131.89228875     June 2005.........    151.63836082     September 2010....      37.07109221
April 2000.........     132.74409315     July 2005.........    148.68434798     October 2010......      35.93156686
May 2000...........     133.60139874     August 2005.......    145.77288292     November 2010.....      34.80751191
June 2000..........     134.46424110     September 2005....    143.18240682     December 2010.....      33.69872612
July 2000..........     135.33265598     October 2005......    140.62614237     January 2011......      32.60501085
August 2000........     136.20667939     November 2005.....    138.10364964     February 2011.....      31.52616995
September 2000.....     137.08634754     December 2005.....    135.61449434     March 2011........      30.46200978
October 2000.......     137.97169685     January 2006......    133.15824765     April 2011........      29.41233924
November 2000......     138.86276406     February 2006.....    130.73448626     May 2011..........      28.37696959
December 2000......     139.75958609     March 2006........    128.34279219     June 2011.........      27.35571453
January 2001.......     140.66220007     April 2006........    125.98275283     July 2011.........      26.34839017
February 2001......     141.57064345     May 2006..........    123.65396072     August 2011.......      25.35481494
March 2001.........     142.48495385     June 2006.........    121.35601366     September 2011....      24.37480958
April 2001.........     143.40516920     July 2006.........    119.08851460     October 2011......      23.40819720
May 2001...........     144.33132758     August 2006.......    116.85107137     November 2011.....      22.45480302
June 2001..........     145.26346741     September 2006....    114.64329699     December 2011.....      21.51445470
July 2001..........     146.20162731     October 2006......    112.46480928     January 2012......      20.58698190
August 2001........     147.14584614     November 2006.....    110.31523095     February 2012.....      19.67221661
September 2001.....     148.09616305     December 2006.....    108.19418951     March 2012........      18.76999287
October 2001.......     149.05261746     January 2007......    106.10131720     April 2012........      17.88014694
November 2001......     150.01524892     February 2007.....    104.03625100     May 2012..........      17.00251709
June 2012..........      16.13694369     February 2013.....      9.62789574     October 2013......       3.80481669
July 2012..........      15.28326913     March 2013........      8.86397584     November 2013.....       3.12166296
August 2012........      14.44133790     April 2013........      8.11062435     December 2013.....       2.44801785
September 2012.....      13.61099637     May 2013..........      7.36770266     January 2014......       1.78375645
October 2012.......      12.79209296     June 2013.........      6.63507412     February 2014.....       1.12875541
November 2012......      11.98447803     July 2013.........      5.91260362     March 2014........       0.48289297
December 2012......      11.18800375     August 2013.......      5.20015801     April 2014
January 2013.......      10.40252434     September 2013....      4.49760565     and thereafter....       0.00000000
</TABLE>



                             Class A-14 Certificates
<TABLE>
<CAPTION>


                       Percentage of                           Percentage of                          Percentage of
                       Initial Class A                         Initial Class                          Initial Class A
                       Subclass                                A Subclass                             Subclass
                       Principal                               Principal                              Principal
Distribution Date      Balance           Distribution Date     Balance          Distribution Date     Balance
- -----------------      -------           -----------------     -------          -----------------     -------
<S>                     <C>              <C>                    <C>             <C>                      <C>        
Up to and including                      April 2002........     55.60406780%    July 2003.........       21.75842660%
January 2001.......     100.00000000%    May 2002..........     53.05282041     August 2003.......       19.77446396
February 2001......      96.94027763     June 2002.........     50.53794220     September 2003....       17.96434782
March 2001.........      93.56962559     July 2002.........     48.05896006     October 2003......       16.18071909
April 2001.........      90.24410957     August 2002.......     45.61540698     November 2003.....       14.42321795
May 2001...........      86.96316202     September 2002....     43.28485712     December 2003.....       12.69148929
June 2001..........      83.72622260     October 2002......     40.98795318     January 2004......       10.98518264
July 2001..........      80.53273821     November 2002.....     38.72425091     February 2004.....        9.30395218
August 2001........      77.38216275     December 2002.....     36.49331168     March 2004........        7.64745656
September 2001.....      74.52218012     January 2003......     34.29470254     April 2004........        6.01535893
October 2001.......      71.70257828     February 2003.....     32.12799614     May 2004..........        4.40732686
November 2001......      68.92283295     March 2003........     29.99277054     June 2004.........        2.82303232
December 2001......      66.18242654     April 2003........     27.88860926     July 2004.........        1.26215155
January 2002.......      63.48084808     May 2003..........     25.81510121     August 2004
February 2002......      60.81759308     June 2003.........     23.77184054     and thereafter....        0.00000000
March 2002.........      58.19216356
</TABLE>



<PAGE>



                  Targeted Class A Subclass Principal Balances
          as Percentages of Initial Class A Subclass Principal Balances

                             Class A-15 Certificates

<TABLE>
<CAPTION>

                       Percentage of                           Percentage of                          Percentage of
                       Initial Class A                         Initial Class                          Initial Class A
                       Subclass                                A Subclass                             Subclass
                       Principal                               Principal                              Principal
Distribution Date      Balance           Distribution Date     Balance          Distribution Date     Balance
- -----------------      -------           -----------------     -------          -----------------     -------
<S>                      <C>             <C>                    <C>             <C>                     <C>
September 1996.....      99.66315084%    June 1999.........     57.33498860%    February 2002.....      17.70033270%
October 1996.......      99.26018531     July 1999.........     55.67203607     March 2002........      16.93622852
November 1996......      98.79125831     August 1999.......     54.03104247     April 2002........      16.18298999
December 1996......      98.25660345     September 1999....     52.41173065     May 2002..........      15.44047576
January 1997.......      97.65653436     October 1999......     50.81382725     June 2002.........      14.70854641
February 1997......      96.99144471     November 1999.....     49.23706222     July 2002.........      13.98706425
March 1997.........      96.26184881     December 1999.....     47.68116900     August 2002.......      13.27589336
April 1997.........      95.46829795     January 2000......     46.14588461     September 2002....      12.59761088
May 1997...........      94.61142160     February 2000.....     44.63094930     October 2002......      11.92912070
June 1997..........      93.69192761     March 2000........     43.13610608     November 2002.....      11.27029350
July 1997..........      92.71060144     April 2000........     41.66110229     December 2002.....      10.62100168
August 1997........      91.66830477     May 2000..........     40.20568773     January 2003......       9.98111918
September 1997.....      90.56597498     June 2000.........     38.76961547     February 2003.....       9.35052165
October 1997.......      89.40462294     July 2000.........     37.35264211     March 2003........       8.72908627
November 1997......      88.18533276     August 2000.......     35.95452697     April 2003........       8.11669186
December 1997......      86.90925936     September 2000....     34.57503238     May 2003..........       7.51321874
January 1998.......      85.57766244     October 2000......     33.21392421     June 2003.........       6.91854880
February 1998......      84.19188831     November 2000.....     31.87097076     July 2003.........       6.33256546
March 1998.........      82.75341967     December 2000.....     30.54594388     August 2003.......       5.75515363
April 1998.........      81.26385654     January 2001......     29.23861761     September 2003....       5.22833800
May 1998...........      79.72479843     February 2001.....     28.21346723     October 2003......       4.70923127
June 1998..........      78.13797824     March 2001........     27.23247376     November 2003.....       4.19772871
July 1998..........      76.50516996     April 2001........     26.26461657     December 2003.....       3.69372694
August 1998........      74.82881408     May 2001..........     25.30973066     January 2004......       3.19712403
September 1998.....      73.11154413     June 2001.........     24.36765286     February 2004.....       2.70781925
October 1998.......      71.35816075     July 2001.........     23.43822217     March 2004........       2.22571328
November 1998......      69.57909972     August 2001.......     22.52127972     April 2004........       1.75070813
December 1998......      67.78405003     September 2001....     21.68891131     May 2004..........       1.28270699
January 1999.......      65.98908201     October 2001......     20.86829529     June 2004.........       0.82161443
February 1999......      64.21205363     November 2001.....     20.05927909     July 2004.........       0.36733618
March 1999.........      62.45842332     December 2001.....     19.26171211     August 2004
April 1999.........      60.72789622     January 2002......     18.47544558     and thereafter....       0.00000000
May 1999...........      59.02018076
</TABLE>

<PAGE>



     (c) Notwithstanding  the foregoing,  on each Distribution Date occurring on
or subsequent to the Cross-Over Date, the Class A Non-PO Principal  Distribution
Amount shall be distributed among the Subclasses of Class A Certificates  (other
than the Class A-12  Certificates  with respect to the Class A-12 PO  Component)
pro  rata in  accordance  with  their  outstanding  Class A  Subclass  Principal
Balances  (less  in the  case  of the  Class  A-12  Certificates  the  Component
Principal  Balance of the Class A-12 PO Component)  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-12, Class A-R or Class 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 in the case of the Class A-12  Certificates,  upon the later
of (i) the Class A Subclass  Principal Balance being reduced to zero or (ii) the
Class A Subclass  Principal  Balances  of the Class A-2,  Class A-8,  Class A-9,
Class  A-14 and Class  A-16  Certificates  being  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
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 "Non-U.S.
Person" is an individual, corporation,  partnership or other person other than 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,  or an estate or trust  that is subject to U.S.
federal income tax regardless of the source of its income.

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-12  Certificates  with respect to the Class A-12 PO Component)  and Class A-12
Certificates with respect to the Class A-12 PO Component, 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-12
Certificates  with respect to the Class A-12 PO Component 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-12
Certificates  with respect to the Class A-12 PO Component in accordance with the
preceding  sentence  shall be allocated pro rata among the Class A  Certificates
(other  than the Class  A-12  Certificates  with  respect  to the Class  A-12 PO
Component),  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
(other  than the Class  A-12  Certificates  with  respect  to the Class  A-12 PO
Component)  shall be allocated on the  subsequent  Determination  Date among the
outstanding  Subclasses  of Class A  Certificates  (other  than the  Class  A-12
Certificates with respect to the Class A-12 PO Component) and the Class A-12 TAC
Accrual  Component in accordance with the Class A Subclass Loss  Percentages and
the Class A-12 TAC Accrual Component Loss Percentage,  respectively,  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-12  Certificates  with respect to the Class A-12 PO
Component,  based on the PO Fraction of such  Mortgage Loan and, with respect to
the Class A Certificates (other than the Class A-12 Certificates with respect to
the Class A-12 PO  Component),  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.

     (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-12 Certificates) and the Class A-12
Components  (other  than the Class  A-12 PO  Component)  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-12
Certificates)  and the Class  A-12  Components  (other  than the  Class  A-12 PO
Component)  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
          A-12  Certificates  attributable  to  the  Class  A-12  PO  Component,
          identifying the aggregate amount of any Unscheduled Principal Receipts
          included therein;

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

               (v) (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;

               (vi) 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;

               (vii) (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;

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

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

               (x) the Class A Non-PO Principal Balance, the Component Principal
          Balances of the Class A-12 PO Component and the Class A-12 TAC Accrual
          Component,  the Class A Subclass Principal Balance of each Subclass of
          Class A  Certificates,  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;

               (xi) 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;

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

               (xiii) 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);

               (xiv)  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);

               (xv) 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);

               (xvi)  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);

               (xvii) 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);

               (xviii) 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);

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

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

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

               (xxii) 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;

               (xxiii) 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;

               (xxiv) 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;

               (xxv) 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;

               (xxvi) 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;

               (xxvii)  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) the Class A-12 PO Component Deferred Amount, if any;

               (xxix) such other  customary  information as the Master  Servicer
          deems necessary or desirable to enable  Certificateholders  to prepare
          their tax returns;

and shall  deliver a copy of each type of statement  to the  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),  (ii) and (iii)  above,  with the Class M
Certificates  pursuant to clauses (iv) and (v) above and with respect to a Class
B Subclass  pursuant  to clauses  (vi) and (vii)  above,  the  amounts  shall be
expressed as a dollar amount per Class A, Class M or Class B Certificate  (other
than a  Class  A-12,  Class  A-R  or  Class  A-LR  Certificate)  with  a  $1,000
Denomination,  as a dollar amount per Class A-R or Class A-LR Certificate with a
$100  Denomination  and as a dollar amount per Class A-12  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),  (ii)(a) and (iii) above in
the case of a Class A  Certificateholder,  the  information set forth in clauses
(iv)  and  (v)(a)  above  in the  case of a Class  M  Certificateholder  and the
information  contained in clauses (vi) and (vii)(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.

     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  M or  Class  B  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).


<PAGE>


                                    ARTICLE V

                                THE CERTIFICATES

Section 5.01. The Certificates.

     (a) 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,
Class A-LR, Class B-2 and Class B-3 Certificates,  integral  multiples of $1,000
(or $1 in the case of the  Class  B-2 and  Class  B-3  Certificates)  in  excess
thereof  (except,  if necessary,  for one  Certificate of each Class or Subclass
(other than the Class A-R or Class A-LR  Certificate)  that evidences one Single
Certificate plus such additional  principal  portion as is required in order for
all Certificates of such Class or Subclass to equal the aggregate Original Class
A  Subclass  Principal  Balance,  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-13,  A-14,  A-15,  A-16, 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  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-12,  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-12, 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 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-12,
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-12, 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 M or Class B  Certificate  shall be made unless
the Trustee shall have received (i) a representation  letter from the transferee
in the form of Exhibit J hereto,  in the case of a 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 subject to Title I of ERISA or Code
Section  4975,  or a  governmental  plan as defined in Section 3(32) of ERISA or
Code Section 4975 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) 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 M or  Class B  Certificate
presented for registration in the name of a Plan, or a trustee of any such Plan,
an Opinion of Counsel  satisfactory  to the Trustee and the Seller to the effect
that the  purchase  or holding of such 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.  The 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.

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 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.


<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,  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 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 its Responsible Officers, unless it shall
          be proved that the Trustee or such  Responsible  Officer 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 which would not cause
either of the Rating Agencies to 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,  the Trustee 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 either 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 the  execution 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  price  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-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-13, Class A-14, Class A-15, Class A-16 and Class A-R
Certificates,  the Class A-12 IO A Component, the Class A-12 IO B Component, the
Class A-12 IO C Component,  the Class A-12 TAC Accrual Component, the Class A-12
PO Component,  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-L2, Class A-L8, Class A-L9, Class A-L11,
Class A-L12,  Class A-L14,  Class A-L15,  Class A-LPO,  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 and 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 either the  Upper-Tier  REMIC or
the Lower-Tier  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 or 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 less any Fixed Retained Yield on each Mortgage
Loan  (including  any REO  Mortgage  Loan) and (ii) the final  payment  or other
liquidation  (or any advance with  respect  thereto) of the last  Mortgage  Loan
remaining in the Trust Estate  (including  for this purpose the discharge of any
Mortgagor  under a defaulted  Mortgage Loan on which a Servicer is not obligated
to foreclose due to environmental impairment) or the disposition of all property
acquired upon  foreclosure  or deed in lieu of foreclosure of any Mortgage Loan;
provided,  however,  that in no event shall the trust  created  hereby  continue
beyond the  expiration  of 21 years from the death of the last  survivor  of the
descendants  of Joseph P. Kennedy,  the late  ambassador of the United States to
the Court of St. James, living on the date hereof.

     The right of the  Seller to  purchase  all the  assets of the Trust  Estate
pursuant to clause (i) of the  preceding  paragraph  are subject to Section 9.02
and conditioned upon the Pool Scheduled  Principal Balance of the Mortgage Loans
as of the  Final  Distribution  Date  being  less than the  amount  set forth in
Section 11.25. 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 each 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, 5325 Spectrum Drive, 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  and (iii) in the
case of the Trustee,  to 180 East 5th Street,  2nd Floor,  St.  Paul,  Minnesota
55101, Attention: Corporate Trust Office, or such other address as may hereafter
be  furnished  to the Seller and the Master  Servicer in writing by the Trustee.
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 7.750% per annum.

     Section  11.02.  Cut-Off  Date.  The Cut-Off Date for the  Certificates  is
August 1, 1996.

     Section 11.03.  Cut-Off Date Aggregate Principal Balance.  The Cut-Off Date
Aggregate Principal Balance is $383,166,930.66.

     Section 11.04. Original Class A Percentage. The Original Class A Percentage
is 93.92234281%.

     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                                 $ 5,072,504.00
        Class A-2                                 $ 4,165,803.00
        Class A-3                                 $ 6,985,000.00
        Class A-4                                 $ 2,600,000.00
        Class A-5                                 $35,530,400.00
        Class A-6                                 $30,416,084.00
        Class A-7                                 $20,082,904.00
        Class A-8                                 $98,382,494.00
        Class A-9                                 $ 7,064,000.00
        Class A-10                                $13,902,764.00
        Class A-11                                $ 2,872,631.00
        Class A-12                                $34,368,787.43
        Class A-13                                $ 8,300,986.00
        Class A-14                                $46,901,000.00
        Class A-15                                $36,730,387.00
        Class A-16                                $ 6,800,000.00
        Class A-R                                 $       100.00
        Class A-LR                                $       100.00

     Section 11.06.  Original  Class A Non-PO  Principal  Balance.  The Original
Class A Non-PO Principal Balance is $355,296,000.00.

     Section 11.07.  Original  Class A-12 PO Component  Principal  Balance.  The
Original Class A-12 PO Component Principal Balance is $4,879,944.43.

     Section 11.08. Original Class A-12 TAC Accrual Component Principal Balance.
The Original Class A-12 TAC Accrual Component Principal Balance is $29,488,843.

     Section  11.09.  Original  Subordinated  Percentage.  The Original  Class M
Percentage is 6.07765719%.

     Section 11.10. Original Class M Percentage. The Original Class M Percentage
is 2.53246882%.

     Section  11.11.  Original Class M Principal  Balance.  The Original Class M
Principal Balance is $9,580,000.

     Section 11.12.  Original Class M Fractional Interest.  The Original Class M
Fractional Interest is 3.54518836%.

     Section  11.13.  Original  Class B-1  Percentage.  The  Original  Class B-1
Percentage is 1.26597006%.

     Section  11.14.  Original  Class B-2  Percentage.  The  Original  Class B-2
Percentage is 1.01298753%.

     Section  11.15.  Original  Class B-3  Percentage.  The  Original  Class B-3
Percentage is 0.50649376%.

     Section  11.16.  Original  Class B-4  Percentage.  The  Original  Class B-4
Percentage is 0.25324688%.

     Section  11.17.  Original  Class B-5  Percentage.  The  Original  Class B-5
Percentage is 0.50649012%.

     Section  11.18.  Original Class B Principal  Balance.  The Original Class B
Principal Balance is $13,411,620.65.

     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                                 $4,789,000.00
       Class B-2                                 $3,832,000.00
       Class B-3                                 $1,916,000.00
       Class B-4                                 $  958,000.00
       Class B-5                                 $1,916,986.23

     Section 11.20.  Original Class B-1 Fractional Interest.  The Original Class
B-1 Fractional Interest is 2.27921830%.

     Section 11.21.  Original Class B-2 Fractional Interest.  The Original Class
B-2 Fractional Interest is 1.26623077%.

     Section 11.22.  Original Class B-3 Fractional Interest.  The Original Class
B-3 Fractional Interest is 0.75973700%.

     Section 11.23.  Original Class B-4 Fractional Interest.  The Original Class
B-4 Fractional Interest is 0.50649012%.

     Section 11.24. Closing Date. The Closing Date is August 27, 1996.

     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
$38,316,693.07(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 Certificates
(other than the Class A-2, Class A-4, Class A-11,  Class A-R, Class A-LR,  Class
B-1, Class B-2, Class B-3,  Class B-4 and Class B-5  Certificates),  the minimum
Denomination eligible for wire transfer on each Distribution Date is $5,000,000.
The Class A-2,  Class A-4, Class A-11,  Class A-R, Class A-LR,  Class B-1, Class
B-2, Class B-3, Class B-4 and Class B-5  Certificates  are not eligible for wire
transfer;  provided,  however, that notwithstanding the foregoing for so long as
the Class A-12, Class A-4 or Class A-11 Certificates are held in the name of the
Clearing  Agency or a nominee  thereof,  the Holder  will be  entitled to a wire
transfer.

     Section 11.27. Single  Certificate.  A Single Certificate for each Subclass
of Class A  Certificates  (other than Class A-3, Class A-4, Class A-9, Class A-R
and Class  A-LR  Certificates),  Class M  Certificates,  Class B-1 and Class B-2
Certificates  represents a $100,000  Denomination.  A Single Certificate for the
Class  B-3,  Class  B-4  and  Class  B-5  Certificates   represents  a  $250,000
Denomination.  A Single  Certificate  for the Class A-3, Class A-4 and Class A-9
Certificates  represents a $1,000  Denomination.  A Single  Certificate  for the
Class A-R and Class A-LR Certificates represents a $100 Denomination.

     Section 11.28. Servicing Fee Rate. The rate used to calculate the Servicing
Fee is equal to 0.250% per annum.

     Section  11.29.  Master  Servicing Fee Rate. The rate used to calculate the
Master Servicing Fee for each Mortgage Loan is 0.02% 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 BANK MINNESOTA, NATIONAL ASSOCATION
                                  as Trustee

                                By:
                                    ----------------------------------
                                      Name:
                                      Title:

Attest:
By:
   ------------------------
Name:
      ---------------------
Title:
      ---------------------



<PAGE>


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

     On this 27th day of August, 1996, before me, a notary public in and for the
State of New York,  personally B. David  Bialzak,  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  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 27th day of August, 1996, 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 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 MINNESOTA)
                        ss.:
COUNTY OF         )

     On this 27th day of August, 1996, before me, a notary public in and for the
State of Minnesota,  personally appeared  ___________________,  known to me who,
being  by  me  duly   sworn,   did   depose   and  say  that  she   resides   at
_________________,  Minnesota;  that she is a ____________________ of First Bank
National  Association,  a national banking association,  one of the parties that
executed the foregoing instrument; and that she signed her name thereto by order
of the Board of Directors of said corporation.





- -------------------------
Notary Public

[NOTARIAL SEAL]



<PAGE>



STATE OF MINNESOTA)
                        ss.:
COUNTY OF         )

     On this 27th day of August, 1996, before me, a notary public in and for the
State of Minnesota, personally appeared _____________________,  known to me who,
being   by  me  duly   sworn,   did   depose   and  say  that  he   resides   at
__________________,  Minnesota; that he is a _____________________ of First Bank
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>



                                   SCHEDULE I

    Norwest Asset Securities Corporation, Mortgage Pass-Through Certificates,
          Series 1996-4 Applicable Unscheduled Principal Receipt Period
<TABLE>
<CAPTION>

                                                          Full Unscheduled                Partial Unscheduled
Servicer                                                  Principal Receipts              Principal Receipts
- --------                                                  ------------------              ------------------

<S>                                                       <C>                             <C>
Cimarron Mortgage                                         Prior Month                     Prior Month

Citicorp Mortgage, Inc.                                   Prior Month                     Prior Month

Countrywide Home Loans, Inc.                              Prior Month                     Prior Month

First Union Mortgage Corporation                          Prior Month                     Prior Month

HomeSide Lending                                          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

Suntrust Mortgage, Inc.                                   Prior Month                     Prior Month
</TABLE>



                                   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 1996-4 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:   August 1, 1996

CUSIP No.:                        First Distribution Date:  September 25, 1996


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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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 7.75% 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:  August 27, 1996

                                  First Bank National Association,
                                    Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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


<PAGE>



                                                      A-2-44



                                   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 1996-4 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:   August 1, 1996

CUSIP No.:                        First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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 7.00% 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.  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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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




<PAGE>



                                                      A-3-44



                                   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 1996-4 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:   August 1, 1996

CUSIP No.:                         First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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 7.75% 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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





<PAGE>



                                                      A-4-44



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

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
    DEPOSITORY TRUST COMPANY TO THE 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 1996-4 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.

     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:   August 1, 1996

CUSIP No.:                        First Distribution Date:  September 25, 1996

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-4  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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  Class  A-4  Certificates  on such  Distribution  Date,  subject  to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain 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-4 Certificates  applicable to each  Distribution  Date will be 7.75% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-4 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate  Register.  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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  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 1996-4 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:   August 1, 1996

CUSIP No.:                        First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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 7.75% 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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





<PAGE>



                                                      A-6-44


                                   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 1996-4 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:   August 1, 1996

CUSIP No.:                       First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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 7.75% 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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

<PAGE>



                                                      A-7-44


                                   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 1996-4 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:   August 1, 1996

CUSIP No.:                        First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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 7.75% 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 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  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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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



<PAGE>



                                                      A-8-44



                                   EXHIBIT A-8
                     [FORM OF FACE OF CLASS A-8 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 1996-4 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.

     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:   August 1, 1996

CUSIP No.:                        First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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.  The  pass-through  rate on the
Class A-8 Certificates  applicable to each  Distribution  Date will be 7.40% 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-8 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  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 HEREOFFOR 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 1996-4 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.

     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:   August 1, 1996

CUSIP No.:                      First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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 7.15% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-9 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency  specified by the 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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


<PAGE>



                                                      A-10-44



                                  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 1996-4 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:   August 1, 1996

CUSIP No.:                       First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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 7.00% 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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


<PAGE>



                                                      A-11-55



                                  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 1996-4 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.

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

Certificate No.                  Cut-Off Date:   August 1, 1996

CUSIP No.:                       First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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.  No distributions of
interest  on this  Certificate  will be made  until  the  Class  A-11  Accretion
Termination Date. Prior to the Class A-11 Accretion  Termination Date,  interest
otherwise  available for  distribution on this  Certificate will be added to the
principal balance hereof on each Distribution  date.  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 7.75% 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.  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 August 27, 1996, at an issue price of 93.05972%,  including accrued interest,
and a stated redemption price at maturity equal to its initial principal balance
plus 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 235% SPA (as defined in the Prospectus
Supplement  dated August 23, 1996 with respect to the offering of the Class A-1,
Class A-2,  Class A-3,  Class A-4,  Class A-5,  Class A-6, Class A-7, Class A-8,
Class A-9, Class A-10,  Class A-11,  Class A-13,  Class A-14,  Class A-15, Class
A-16, 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  416.16910668%;  (ii) the
annual  yield  to  maturity  of  this  Certificate,   compounded   monthly,   is
approximately  8.10%;  and (iii) the amount of OID  allocable to the short first
accrual  period  (August 27, 1996 to September  25, 1996) as a percentage of the
initial  principal  balance  of this  Certificate,  calculated  using  the exact
method, is approximately 0.58624497%.

     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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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



<PAGE>







                                  EXHIBIT A-12
                    [FORM OF FACE OF CLASS A-12 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.

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1996-4 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.

     UNTIL THE  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:   August 1, 1996

CUSIP No.:                         First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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. For the purposes of determining
distributions of interest and in reduction of principal balance,  the Class A-12
Certificates  consist of five components  (each, a "Component" and individually,
the "Class A-12 IO A  Component,"  the "Class A-12 IO B  Component,"  the "Class
A-12 IO C Component," the "Class A-12 TAC Accrual Component" and the "Class A-12
PO  Component").  The  amount  of  interest  which  accrues  on the  Class  A-12
Certificates  in any one-month  period will equal the sum of the interest  which
accrues on the Class A-12 IO A  Component,  the Class A-12 IO B  Component,  the
Class A-12 IO C  Component  and the Class A-12 TAC Accrual  Component.  Interest
with respect to the Class A-12 IO A Component  will accrue during each one-month
period in an amount  equal to the sum of (i) the  product of 1/12th of  0.35000%
and the  then-outstanding  principal  balance of the Class A-8  Certificates and
(ii) the product of 1/12th of  0.17724008%  and the then  outstanding  principal
balance of the Class A-15 Certificates.  Interest with respect to the Class A-12
IO B Component  will accrue during each  one-month  period in an amount equal to
the sum of (i) the  product  of  1/12th  of  0.60000%  and the  then-outstanding
principal balance of the Class A-9  Certificates,  (ii) the product of 1/12th of
0.55000%  and  the  then  outstanding   principal  balance  of  the  Class  A-14
Certificates   and  (iii)  the  product  of  1/12th  of   0.07275992%   and  the
then-outstanding principal balance of the Class A-15 Certificates. Interest with
respect to the Class A-12 IO C  Component  will  accrue  during  each  one-month
period in an amount  equal to the product of 1/12th of  0.75000%  and the sum of
the  then-outstanding  principal balances of the Class A-2, Class A-10 and Class
A-16 Certificates. Interest with respect to the Class A-12 TAC Accrual Component
will accrue  during each  one-month  period in an amount equal to the product of
(i) 1/12th of 7.750% and (ii) the  outstanding  Component  Principal  Balance of
such  Component.  Prior  to the  Class  A-12  TAC  Accrual  Component  Accretion
Termination, no distribution of interest on this Certificate with respect to its
Class  A-12 TAC  Accrual  Component  will be made.  Prior to the Class  A-12 TAC
Accrual  Component  Accretion  Termination,  interest  otherwise  available  for
distribution  on this  Certificate  with  respect to its Class A-12 TAC  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-12  Certificates with respect to their Class A-12 IO A Component,
Class A-12 IO B Component,  Class A-12 IO C Component and Class A-12 TAC Accrual
Component.  The Class A-12  Certificates  are not entitled to  distributions  of
interest with respect to its Class A-12 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 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-12  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.


     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 August 27, 1996, and based on its issue price
of 96.67414%,  including  accrued  interest,  and a stated  redemption  price at
maturity equal to its initial principal balance plus all interest  distributions
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 235% SPA (as  defined  in the
Prospectus  Supplement dated August 23, 1996 with respect to the offering of the
Class A-1,  Class A-2,  Class A-3,  Class A-4,  Class A-5, Class A-6, Class A-7,
Class A-8,  Class A-9, Class A-10,  Class A-11,  Class A-13,  Class A-14,  Class
A-15,  Class  A-16,  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
133.38438871%; (ii) the annual yield to maturity of this Certificate, compounded
monthly,  is  approximately  8.52%; and (iii) the amount of OID allocable to the
short  first  accrual  period  (August  27,  1996 to  September  25,  1996) as a
percentage  of the initial  principal  balance of this  Certificate,  calculated
using the exact method, is approximately 0.64042966%.

     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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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


<PAGE>



                                                      A-13-44



                                  EXHIBIT A-13
                    [FORM OF FACE OF CLASS A-13 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 1996-4 CLASS A-13

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

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

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   August 1, 1996

CUSIP No.:                        First Distribution Date:  September 25, 1996

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-13  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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-13 Certificates  required to be distributed
to Holders of Class A-13  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain 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-13  Certificates  applicable to each Distribution Date will be 7.75% 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-13 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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



<PAGE>


                                  EXHIBIT A-14
                    [FORM OF FACE OF CLASS A-14 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
    DEPOSITORY TRUST COMPANY TO THE 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 1996-4 CLASS A-14

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

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

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   August 1, 1996

CUSIP No.:                        First Distribution Date:  September 25, 1996

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-14  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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-14 Certificates  required to be distributed
to Holders of Class A-14  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain 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-14  Certificates  applicable to each Distribution Date will be 7.20% 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-14 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency  specified by the 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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


<PAGE>

                                  EXHIBIT A-15
                    [FORM OF FACE OF CLASS A-15 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 1996-4 CLASS A-15

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

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

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   August 1, 1996

CUSIP No.:                       First Distribution Date:  September 25, 1996

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-15  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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-15 Certificates  required to be distributed
to Holders of Class A-15  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain 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-15  Certificates  applicable to each Distribution Date will be 7.50% 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-15 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency  specified by the 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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


<PAGE>

                                  EXHIBIT A-16
                    [FORM OF FACE OF CLASS A-16 CERTIFICATE]

    [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
  THE DEPOSITORY TRUST COMPANY TO THE 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 1996-4 CLASS A-16

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

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

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   August 1, 1996

CUSIP No.:                         First Distribution Date:  September 25, 1996

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-16  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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-16 Certificates  required to be distributed
to Holders of Class A-16  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain 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-16  Certificates  applicable to each Distribution Date will be 7.00% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-16 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency  specified by the 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  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 SUBJECT TO THE FIDUCIARY  RESPONSIBILITY  PROVISIONS OF
THE EMPLOYEE  RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED  ("ERISA"),  OR
SECTION 4975 OF THE CODE 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 ANY PERSON INVESTING THE ASSETS OF A PLAN.

PURCHASERS  OF THIS  CLASS A-R  CERTIFICATE  SHOULD BE AWARE  THAT ON JANUARY 3,
1995,  THE INTERNAL  REVENUE  SERVICE  ISSUED  PROPOSED  REGULATIONS  UNDER CODE
SECTION  475 THAT,  IF  ADOPTED  IN FINAL  FORM,  WOULD  APPLY TO THIS CLASS A-R
CERTIFICATE  AND WOULD NOT  PERMIT  THIS CLASS A-R  CERTIFICATE  TO BE MARKED TO
MARKET.

<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1996-4, 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, INC.
                (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:   August 1, 1996

CUSIP No.:                      First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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 7.75% 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  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 SUBJECT TO THE FIDUCIARY  RESPONSIBILITY  PROVISIONS OF
THE EMPLOYEE  RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED  ("ERISA"),  OR
SECTION 4975 OF THE CODE 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 ANY PERSON INVESTING THE ASSETS OF A PLAN.

PURCHASERS  OF THIS  CLASS A-LR  CERTIFICATE  SHOULD BE AWARE THAT ON JANUARY 3,
1995,  THE INTERNAL  REVENUE  SERVICE  ISSUED  PROPOSED  REGULATIONS  UNDER CODE
SECTION  475 THAT,  IF ADOPTED  IN FINAL  FORM,  WOULD  APPLY TO THIS CLASS A-LR
CERTIFICATE  AND WOULD NOT PERMIT  THIS CLASS A-LR  CERTIFICATE  TO BE MARKED TO
MARKET.




<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1996-4, 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, INC.
                (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:   August 1, 1996

CUSIP No.:                         First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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 7.75% 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  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 SUBJECT TO THE  FIDUCIARY
RESPONSIBILITY  PROVISIONS  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 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 ANY PERSON  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>

     THIS CERTIFIES THAT ____________________________ is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of the Class B-1  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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
7.75% 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.  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 (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,  an  opinion  of  counsel  acceptable  to and in form and
substance  satisfactory  to the Trustee  and the Seller with  respect to certain
matters, 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  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 SUBJECT TO THE  FIDUCIARY
RESPONSIBILITY  PROVISIONS  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 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 ANY PERSON  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 1996-4, 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:   August 1, 1996

CUSIP No.:                      First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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
7.75% 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.  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 (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,  an  opinion  of  counsel  acceptable  to and in form and
substance  satisfactory  to the Trustee  and the Seller with  respect to certain
matters, 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 August 27, 1996, and based on its issue price
of 93.74722%,  including  accrued  interest,  and a stated  redemption  price at
maturity  equal to its initial  principal  balance (plus two 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
235% SPA (as defined in the  Prospectus  Supplement  dated  August 23, 1996 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-6, Class A-7, Class A-8, Class A-9, Class A-10,  Class A-11,  Class
A-13,  Class A-14, Class A-15, Class A-16, 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   6.29583333%;   (ii)  the  annual   yield  to  maturity  of  this
Certificate, compounded monthly, is approximately 8.66%; and (iii) the amount of
OID  allocable to the short first accrual  period  (August 27, 1996 to September
25, 1996) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.02869394%.

     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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  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 SUBJECT TO THE  FIDUCIARY
RESPONSIBILITY  PROVISIONS  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 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 ANY PERSON  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 1996-4, 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:   August 1, 1996

CUSIP No.:                       First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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
7.75% 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.  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, an
opinion of counsel  acceptable to and in form and substance  satisfactory to the
Trustee and the Seller with  respect to certain  matters,  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 August 27, 1996, and based on its issue price
of 77.35660%,  including  accrued  interest,  and a stated  redemption  price at
maturity  equal to its initial  principal  balance (plus two 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
235% SPA (as defined in the  Prospectus  Supplement  dated  August 23, 1996 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-6, Class A-7, Class A-8, Class A-9, Class A-10,  Class A-11,  Class
A-13,  Class A-14, Class A-15, Class A-16, 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   22.68645833%;   (ii)  the  annual  yield  to  maturity  of  this
Certificate,  compounded monthly, is approximately  11.53%; and (iii) the amount
of OID allocable to the short first accrual period (August 27, 1996 to September
25, 1996) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.09099219%.

     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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  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 SUBJECT TO THE  FIDUCIARY
RESPONSIBILITY  PROVISIONS  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 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 ANY PERSON  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 1996-4, 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:   August 1, 1996

CUSIP No.:                       First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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
7.75% 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.  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, an
opinion of counsel  acceptable to and in form and substance  satisfactory to the
Trustee and the Seller with  respect to certain  matters,  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 August 27, 1996, and based on its issue price
of 58.62222%,  including  accrued  interest,  and a stated  redemption  price at
maturity  equal to its initial  principal  balance (plus two 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
235% SPA (as defined in the  Prospectus  Supplement  dated  August 23, 1996 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-6, Class A-7, Class A-8, Class A-9, Class A-10,  Class A-11,  Class
A-13,  Class A-14, Class A-15, Class A-16, 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   41.42083333%;   (ii)  the  annual  yield  to  maturity  of  this
Certificate,  compounded monthly, is approximately  16.22%; and (iii) the amount
of OID allocable to the short first accrual period (August 27, 1996 to September
25, 1996) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.13635205%.

     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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  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 SUBJECT TO THE  FIDUCIARY
RESPONSIBILITY  PROVISIONS  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 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 ANY PERSON  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 1996-4, CLASS B-5

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

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

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER, THE MASTER SERVICER, THE TRUSTEE 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:   August 1, 1996

CUSIP No.:                        First Distribution Date:  September 25, 1996

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, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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
7.75% per annum. The amount of interest which accrues on this Certificate in any
month will be subject to reduction  with respect to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class B-5 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate  Register.  Notwithstanding the
above,  the final  distribution  in reduction of the  principal  balance of this
Certificate  will be made after due notice of the pendency of such  distribution
and only upon  presentation  and surrender of this  Certificate at the office or
agency  specified  by the  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, an
opinion of counsel  acceptable to and in form and substance  satisfactory to the
Trustee and the Seller with  respect to certain  matters,  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 August 27, 1996, and based on its issue price
of 27.55972%,  including  accrued  interest,  and a stated  redemption  price at
maturity  equal to its initial  principal  balance (plus two 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
235% SPA (as defined in the  Prospectus  Supplement  dated  August 23, 1996 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-6, Class A-7, Class A-8, Class A-9, Class A-10,  Class A-11,  Class
A-13,  Class A-14, Class A-15, Class A-16, 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   72.48333333%;   (ii)  the  annual  yield  to  maturity  of  this
Certificate,  compounded monthly, is approximately  33.98%; and (iii) the amount
of OID allocable to the short first accrual period (August 27, 1996 to September
25, 1996) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.12495507%.

     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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  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 SUBJECT TO THE  FIDUCIARY
RESPONSIBILITY  PROVISIONS  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 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 ANY  PERSON  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 1996-4, 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:   August 1, 1996

CUSIP No.:                         First Distribution Date:  September 25, 1996

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,
other than the Fixed Retained Yield, if any, with respect thereto, and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1996 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  and First  Bank  National  Association,  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 7.75% 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,  an  opinion  of  counsel  acceptable  to and in form and
substance  satisfactory  to the Trustee  and the Seller with  respect to certain
matters, 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:  August 27, 1996

                                        First Bank National Association,
                                          Trustee

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


Countersigned:

First Bank National Association,
  Trustee

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



<PAGE>

                                    EXHIBIT D


                 [Form of Reverse of Series 1996-4 Certificates]


                      NORWEST ASSET SECURITIES CORPORATION
                       MORTGAGE PASS-THROUGH CERTIFICATES
                                  SERIES 1996-4

     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's,  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 BANK NATIONAL
ASSOCIATION,  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 August 27, 1996 relating to the
issuance of Mortgage Pass-Through  Certificates,  Series 1996-4 (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 BANK NATIONAL ASSOCIATION

180 East Fifth Street                        By:
St. Paul, Minnesota  55101                   Name:
                                             Title:



Address:                                     NORWEST ASSET SECURITIES
                                             CORPORATION
5325 Spectrum Drive
Frederick, Maryland  21703                   By:
                                             Name:
                                             Title:



Address:                                     NORWEST BANK MINNESOTA, NATIONAL
                                                ASSOCIATION
5325 Spectrum Drive
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 Bank
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 association.



                                               -------------------------------
                                                          Notary Public




[NOTARIAL SEAL]





<PAGE>



STATE OF         )
                 :  ss.:
COUNTY OF        )

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



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


<PAGE>





                                   EXHIBIT F-1

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


<PAGE>





                                   EXHIBIT F-2

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




<PAGE>





                                   EXHIBIT F-3

            [Schedule of Mortgage Loans Serviced by Other Servicers]


<PAGE>


                                    EXHIBIT G

                               REQUEST FOR RELEASE
                             (for 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 1996-4


     The undersigned  Master Servicer hereby  acknowledges  that it has received
from First Bank  National  Association,  as Trustee  for the Holders of Mortgage
Pass-Through  Certificates,  Series 1996-4, 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 August 27, 1996 (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  County  of
     ___________________,   State  of   _________________   in  book/reel/docket
     ____________________ of official records at page/image ____________.

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

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

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

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

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

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

     The undersigned Master Servicer hereby acknowledges and agrees as follows:

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

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

               (3) The Master Servicer shall return the Documents to the 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 1996-4,  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 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 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. "Non-U.S. Person" means an individual, corporation,
partnership  or other  person  other  than 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, or an
estate or trust that is subject to U.S.  federal  income tax  regardless  of the
source of its income.

     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 Bank National Association
180 East Fifth Street
St. Paul, Minnesota  55101

                  Re:  Norwest Asset Securities Corporation,
                       Series 1996-4, 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 1996-4
                    CLASS [A-12][B-3][B-4][B-5] CERTIFICATES


                               TRANSFEREE'S LETTER



                                             ----------------- --, ----

First Bank National Association
180 East Fifth Street
St. Paul, Minnesota  55101


Norwest Asset Securities Corporation
5325 Spectrum Drive
Frederick, Maryland 21703

     The  undersigned  (the  "Purchaser")  proposes  to purchase  Norwest  Asset
Securities Corporation Mortgage Pass-Through Certificates,  Series 1996-4, Class
[A-12][B-3][B-4][B-5]    Certificates    (the    "Class    [A-12][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 August 27, 1996 (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 Bank National Association,  as trustee (the "Trustee"), of
Norwest Asset Securities Corporation Mortgage Pass-Through Certificates,  Series
1996-4.

     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-12][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-12][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-12][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-12][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 August ___,  1996,
          relating to the Class [A-12][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-12][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-12][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-12][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-12][B-3][B-4][B-5]  Certificates  other than in  connection  with a
          subsequent sale of Class [A-12][B-3][B-4][B-5] Certificates.

               (e) [For Class B Certificates] Either (i) the Purchaser is not an
          employee   benefit  plan  subject  to  the  fiduciary   responsibility
          provisions 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 any 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 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,
          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  "Benefit  Plan  Opinion"  satisfactory  to NASCOR and the
          Trustee of the Trust  Estate.  A Benefit Plan Opinion is an opinion of
          counsel to the effect that the  proposed  transfer  will not (a) cause
          the assets of the Trust  Estate to be  regarded  as "plan  assets" and
          subject to the  fiduciary  responsibility  provisions  of ERISA or the
          prohibited transaction provisions of the Code or Similar Law, (b) give
          rise to a  fiduciary  duty under  ERISA,  Section  4975 of the Code or
          Similar Law on the part of NASCOR,  the Master Servicer or the Trustee
          with respect to any Plan or (c)  constitute  a prohibited  transaction
          under ERISA or Section 4975 of the Code or Similar Law

               (f) If the Purchaser is a depository  institution  subject to the
          jurisdiction of the Office of the Comptroller of the Currency ("OCC"),
          the Board of  Governors of the Federal  Reserve  System  ("FRB"),  the
          Federal Deposit Insurance Corporation  ("FDIC"),  the Office of Thrift
          Supervision  ("OTS")  or  the  National  Credit  Union  Administration
          ("NCUA"), the Purchaser has reviewed the "Supervisory Policy Statement
          on  Securities  Activities"  dated  January  28,  1992 of the  Federal
          Financial  Institutions  Examination  Council  and the April 15,  1994
          Interim  Revision  thereto as adopted by the OCC, FRB,  FDIC,  OTS and
          NCUA  (with  modifications  as  applicable),  as  appropriate,   other
          applicable  investment  authority,  rules,  supervisory  policies  and
          guidelines  of these  agencies and, to the extent  appropriate,  state
          banking  authorities  and has concluded that its purchase of the Class
          [A-12][B-3][B-4][B-5] Certificates is in compliance therewith.

     Section 3. Transfer of Class [A-12][B-3][B-4][B-5] Certificates.

               (a)    The     Purchaser     understands     that    the    Class
          [A-12][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-12][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-12][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-12][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-12][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 1996-4
                       CLASS [M] [B-1] [B-2] CERTIFICATES


                               TRANSFEREE'S LETTER




                                          ---------------- --, ----

First Bank National Association
180 East Fifth Street
St. Paul, Minnesota  55101


Norwest Asset Securities Corporation
5325 Spectrum Drive
Frederick, Maryland 21703

     The  undersigned  (the  "Purchaser")  proposes  to purchase  Norwest  Asset
Securities Corporation Mortgage Pass-Through Certificates,  Series 1996-4, 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 August 27, 1996 (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 Bank National Association,  as trustee (the "Trustee"), of
Norwest Asset Securities Corporation, Series 1996-4.

     Section 2.  Representations and Warranties of the Purchaser.  In connection
with the proposed transfer, the Purchaser represents and warrants to the Seller,
the Master Servicer and the Trustee that:

               Either (i) the Purchaser is not an employee  benefit plan subject
          to the fiduciary responsibility  provisions 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 any
          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  "Benefit  Plan
          Opinion" satisfactory to NASCOR and the Trustee of the Trust Estate. A
          Benefit  Plan  Opinion is an opinion of counsel to the effect that the
          proposed transfer will not (a) cause the assets of the Trust Estate to
          be   regarded  as  "plan   assets"   and  subject  to  the   fiduciary
          responsibility  provisions  of  ERISA  or the  prohibited  transaction
          provisions  of the Code or Similar  Law,  (b) give rise to a fiduciary
          duty under ERISA,  Section 4975 of the Code or Similar Law on the part
          of NASCOR, the Master Servicer or the Trustee with respect to any Plan
          or (c) constitute a prohibited transaction under ERISA or 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


                      Cimarron Mortgage Servicing Agreement

                   Citicorp Mortgage, Inc. Servicing Agreement

                Countrywide Home Loans, Inc. Servicing Agreement

              First Union Mortgage Corporation Servicing Agreement

                      HomeSide Lending Servicing Agreement

                   Suntrust 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 1996-4, Class ____ (the "Class B Certificates"). The Class B Certificates
were issued pursuant to a Pooling and Servicing Agreement dated as of August 27,
1996 among Norwest Asset Securities Corporation,  as Seller ("NASCOR"),  Norwest
Bank Minnesota, National Association, as Master Servicer and First Bank National
Association, 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(e)
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 related  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,  to the extent
that the Company as Master  Servicer is granted  such  authority  in the related
Servicing  Agreement,  the  related  Servicer  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,  to the extent
that the Company as Master  Servicer is granted  such  authority  in the related
Servicing  Agreement,  the  related  Servicer 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 cause (to the
extent that the  Company as Master  Servicer is granted  such  authority  in the
related Servicing Agreement) the related Servicer, 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),  to 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
such 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 (i) be provided only to the
extent it is not  confidential  in nature and (ii) be  obtainable by the related
Servicer  from  existing  reports,  certificates  or  statements or otherwise be
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  therein
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  as of the  date  hereof,  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 if immediately
available  funds from the  Purchaser  to the  Company for deposit in the related
Certificate Account or Lower-Tier Certificate Account as applicable; or (ii) the
related Servicer may 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 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  as of the  date  hereof,  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) 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 1996-4. 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 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 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
                           5325 Spectrum Drive
                           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:




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