NORWEST ASSET SEC CORP MORT PASS THR CERT SER 1998-22 TRUST
8-K, 1998-10-08
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, 1998
(Date of earliest event reported)

Commission File No. 333-45021


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


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


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


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


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


<PAGE>


ITEM 5.  Other Events

     On August  27,  1998,  Norwest  Asset  Securities  Corporation,  a Delaware
corporation (the "Registrant"),  sold Mortgage Pass-Through Certificates, Series
1998-22, Class A-1, Class A-2, Class A-3, Class A-4, Class A-5, Class A-R, Class
B-1, Class B-2 and Class B-3 (the "Offered  Certificates"),  having an aggregate
original  principal  balance of  $248,632,100.00  The Offered  Certificates were
issued  pursuant to a Pooling and  Servicing  Agreement,  dated as of August 27,
1998, among the Registrant,  Norwest Bank Minnesota,  National  Association,  as
master  servicer  (the  "Master  Servicer"  or  "Norwest  Bank") and First Union
National  Bank,  as trustee  (the  "Agreement"),  a copy of which is filed as an
exhibit hereto. Mortgage Pass-Through  Certificates,  Series 1998-22, Class A-PO
Certificates,  having an aggregate initial principal balance of $436,421.50, and
Class B-4,  Class B-5 and Class B-6  Certificates,  having an aggregate  initial
principal  balance of  $1,251,911.01  (the "Private Class B  Certificates"  and,
together  with the Class A-PO  Certificates  and the Offered  Certificates,  the
"Certificates"), were also issued pursuant to the Agreement.

     As of the date of initial issuance,  the Offered Certificates  evidenced an
approximate  99.33%  undivided  interest in a trust fund (the  "Trust  Estate"),
consisting principally of a pool of fixed interest rate,  conventional,  monthly
pay,  fully-amortizing,  one-to  four-family  residential  first mortgage loans,
other than the Fixed  Retained  Yield (as defined in the  Agreement),  which may
include  loans  secured by shares issued by  cooperative  housing  corporations,
originated in connection  with the relocation of employees by various  corporate
employers that participated in the relocation program of Norwest Mortgage,  Inc.
and of employees of various non-participant  employees.  The remaining undivided
interests in the Trust Estate are  evidenced by the Class A-PO and Private Class
B Certificates  distributions  on which are subordinated to distributions on the
Offered Certificates and the Class A-PO Certificates.

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

     An election  will be made to treat the Trust  Estate as a REMIC for federal
income tax purposes (the  "REMIC").  The Class A-1,  Class A-2, Class A-3, Class
A-4,  Class A-5,  Class A-PO,  Class B-1, Class B-2, Class B-3, Class B-4, Class
B-5 and Class B-6  Certificates  will be treated as "regular  interests"  in the
REMIC and the Class A-R Certificate  will be treated as the "residual  interest"
in the REMIC.


<PAGE>


ITEM 7.  Financial Statements and Exhibits
         ---------------------------------

         (c) Exhibits

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

         (EX-4)                                      Pooling    and    Servicing
                                                     Agreement,   dated   as  of
                                                     August  27,   1998,   among
                                                     Norwest  Asset   Securities
                                                     Corporation,  Norwest  Bank
                                                     Minnesota,         National
                                                     Association and First Union
                                                     National Bank, as trustee.


<PAGE>


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

                                                     NORWEST ASSET SECURITIES
                                                       CORPORATION

August 27, 1998

                                                       /s/ Alan S. McKenney
                                                     ---------------------------
                                                           Alan S. McKenney
                                                           Vice President


<PAGE>


                                INDEX TO EXHIBITS


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

   (EX-4)        Pooling and Servicing                              E
                 Agreement, dated as of August 27, 1998 
                 among Norwest Asset Securities Corporation, 
                 Norwest Bank Minnesota, National Association
                 and First Union National Bank, as trustee.





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


                      NORWEST ASSET SECURITIES CORPORATION

                                    (Seller)

                                       and

                  NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION

                                (Master Servicer)

                                       and

                            FIRST UNION NATIONAL BANK

                                    (Trustee)


                         POOLING AND SERVICING AGREEMENT

                           Dated as of August 27, 1998

                                                  $250,320,432.51

                       Mortgage Pass-Through Certificates
                                 Series 1998-22


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


<PAGE>


                                TABLE OF CONTENTS


                                    ARTICLE I

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

                                   ARTICLE II

       CONVEYANCE OF MORTGAGE LOANS; ORIGINAL ISSUANCE OF THE CERTIFICATES
Section 2.01. Conveyance of Mortgage Loans .....................................
Section 2.02. Acceptance by Trustee ............................................
Section 2.03. Representations and Warranties of the Master Servicer
                and the Seller .................................................
Section 2.04. Execution and Delivery of Certificates ...........................
Section 2.05. Designation of Certificates; Designation of Startup Day and
                Latest Possible Maturity Date ..................................

                                   ARTICLE III

       ADMINISTRATION OF THE TRUST ESTATE: SERVICING OF THE MORTGAGE LOANS
Section 3.01. Certificate Account ..............................................
Section 3.02. Permitted Withdrawals from the Certificate Account ...............
Section 3.03. Advances by Master Servicer and Trustee ..........................
Section 3.04. Trustee to Cooperate;  Release of Owner Mortgage Loan Files ......
Section 3.05. Reports to the Trustee; Annual Compliance Statements .............
Section 3.06. Title, Management and Disposition of Any REO Mortgage Loan .......
Section 3.07. Amendments to Servicing Agreements,  Modification of
                Standard Provisions ............................................
Section 3.08. Oversight of Servicing ...........................................
Section 3.09. Termination and Substitution of Servicing Agreements .............
Section 3.10. Application of Net Liquidation Proceeds ..........................
Section 3.11. 1934 Act Reports .................................................

                                   ARTICLE IV

              DISTRIBUTIONS IN RESPECT OF CERTIFICATES; PAYMENTS TO
                   CERTIFICATEHOLDERS; STATEMENTS AND REPORTS
Section 4.01. Distributions ....................................................
Section 4.02. Allocation of Realized Losses ....................................
Section 4.03. Paying Agent .....................................................
Section 4.04. Statements to Certificateholders;  Report to the Trustee
                and the Seller .................................................
Section 4.05. Reports to Mortgagors and the Internal Revenue Service ...........
Section 4.06. Calculation of Amounts; Binding Effect of Interpretations
                and Actions of Master Servicer .................................

                                    ARTICLE V

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

                                   ARTICLE VI

                       THE SELLER AND THE MASTER SERVICER
Section 6.01. Liability of the Seller and the Master Servicer ..................
Section 6.02. Merger or Consolidation of the Seller or the Master Servicer .....
Section 6.03. Limitation on Liability of the Seller, the Master
                Servicer and Others ............................................
Section 6.04. Resignation of the Master Servicer ...............................
Section 6.05. Compensation to the Master Servicer ..............................
Section 6.06. Assignment or Delegation of Duties by Master Servicer ............
Section 6.07. Indemnification of Trustee and Seller by Master Servicer .........

                                   ARTICLE VII

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

                                  ARTICLE VIII

                             CONCERNING THE TRUSTEE
Section 8.01. Duties of Trustee ................................................
Section 8.02. Certain Matters Affecting the Trustee ............................
Section 8.03. Trustee Not Required to Make Investigation .......................
Section 8.04. Trustee Not Liable for Certificates or Mortgage Loans ............
Section 8.05. Trustee May Own Certificates .....................................
Section 8.06. The Master Servicer to Pay Fees and Expenses .....................
Section 8.07. Eligibility Requirements .........................................
Section 8.08. Resignation and Removal ..........................................
Section 8.09. Successor ........................................................
Section 8.10. Merger or Consolidation ..........................................
Section 8.11. Authenticating Agent .............................................
Section 8.12. Separate Trustees and Co-Trustees ................................
Section 8.13. Appointment of Custodians ........................................
Section 8.14. Tax Matters; Compliance with REMIC Provisions ....................
Section 8.15. Monthly Advances .................................................

                                   ARTICLE IX

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

                                    ARTICLE X

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

                                   ARTICLE XI

                             TERMS FOR CERTIFICATES
Section 11.01. Class A Fixed Pass-Through Rate .................................
Section 11.02. Cut-Off Date ....................................................
Section 11.03. Cut-Off Date Aggregate Principal Balance ........................
Section 11.04. Original Class A Percentage .....................................
Section 11.05. Original Principal Balances of the Classes
                 of Class A Certificates .......................................
Section 11.06. Original Class A Non-PO Principal Balance .......................
Section 11.07. Original Subordinated Percentage ................................
Section 11.08. Original Class B-1 Percentage ...................................
Section 11.09. Original Class B-2 Percentage ...................................
Section 11.10. Original Class B-3 Percentage ...................................
Section 11.11. Original Class B-4 Percentage ...................................
Section 11.12. Original Class B-5 Percentage ...................................
Section 11.13. Original Class B-6 Percentage ...................................
Section 11.14. Original Class B Principal Balance ..............................
Section 11.15. Original Principal Balances of the Classes of
                 Class B Certificates ..........................................
Section 11.16. Original Class B-1 Fractional Interest ..........................
Section 11.17. Original Class B-2 Fractional Interest ..........................
Section 11.18. Original Class B-3 Fractional Interest ..........................
Section 11.19. Original Class B-4 Fractional Interest ..........................
Section 11.20. Original Class B-5 Fractional Interest ..........................
Section 11.21. Closing Date ....................................................
Section 11.22. Right to Purchase ...............................................
Section 11.23. Wire Transfer Eligibility .......................................
Section 11.24. Single Certificate ..............................................
Section 11.25. Servicing Fee Rate ..............................................
Section 11.26. Master Servicing Fee Rate .......................................


<PAGE>


                                    EXHIBITS
                                    --------

EXHIBIT A-1   -  Form of Face of Class A-1 Certificate
EXHIBIT A-2   -  Form of Face of Class A-2 Certificate
EXHIBIT A-3   -  Form of Face of Class A-3 Certificate
EXHIBIT A-4   -  Form of Face of Class A-4 Certificate
EXHIBIT A-5   -  Form of Face of Class A-5 Certificate
EXHIBIT A-PO  -  Form of Face of Class A-PO Certificate
EXHIBIT A-R   -  Form of Face of Class A-R Certificate
EXHIBIT B-1   -  Form of Face of Class B-1 Certificate
EXHIBIT B-2   -  Form of Face of Class B-2 Certificate
EXHIBIT B-3   -  Form of Face of Class B-3 Certificate
EXHIBIT B-4   -  Form of Face of Class B-4 Certificate
EXHIBIT B-5   -  Form of Face of Class B-5 Certificate
EXHIBIT B-6   -  Form of Face of Class B-6 Certificate
EXHIBIT C     -  Form of Reverse of Series 1998-22 Certificates
EXHIBIT D     -  Reserved
EXHIBIT E     -  Custodial Agreement
EXHIBIT F-1   -  Schedule of Mortgage Loans Serviced by Norwest Mortgage
EXHIBIT F-2   -  Schedule of Mortgage Loans Serviced by Other Servicers
EXHIBIT G     -  Request for Release
EXHIBIT H     -  Affidavit  Pursuant  to  Section  860E(e)(4)  of  the  Internal
                 Revenue Code of 1986, as amended, and for Non-ERISA Investors
EXHIBIT I     -  Letter from Transferor of Residual Certificates
EXHIBIT J     -  Transferee's Letter (Class [B-4] [B-5] [B-6] Certificates)
EXHIBIT K     -  Transferee's Letter (Class [B-1] [B-2] [B-3] Certificates)
EXHIBIT L     -  Servicing Agreements
EXHIBIT M     -  Form of Special Servicing Agreement


<PAGE>


     This Pooling and Servicing Agreement,  dated as of August 27, 1998 executed
by NORWEST ASSET  SECURITIES  CORPORATION,  as Seller,  NORWEST BANK  MINNESOTA,
NATIONAL  ASSOCIATION,  as Master  Servicer,  and FIRST UNION  NATIONAL BANK, as
Trustee.


                                WITNESSETH THAT:

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

ARTICLE I

DEFINITIONS

Section 1.01.     Definitions.

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

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

     Accretion  Termination  Date:  For the Class A-4  Certificates  will be the
earlier to occur of (i) the Distribution Date following the Distribution Date on
which  the  Principal  Balances  of the  Class  A-1,  Class  A-2 and  Class  A-3
Certificates have been reduced to zero or (ii) the Cross-Over Date.

     Accrual  Distribution  Amount:  As to any  Distribution  Date  prior to the
Accretion  Termination Date and the Class A-4  Certificates,  an amount equal to
the sum of (i) the Class A Interest  Percentage of the Class A-4 Certificates of
the Current Class A Interest  Distribution  Amount and (ii) the Class A Interest
Shortfall  Percentage of the Class A-4 Certificates of the amount distributed in
respect of the Classes of Class A Certificates  pursuant to Paragraph  second of
Section 4.01(a) on such  Distribution  Date. As to any  Distribution  Date on or
after the Accretion Termination Date, zero.

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

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

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

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

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

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

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

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

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

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

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

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

     Authenticating  Agent:  Any  authenticating  agent appointed by the 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
$107,020.76  minus the aggregate amount of Bankruptcy Losses allocated solely to
the Class B Certificates  in accordance  with Section  4.02(a) since the Cut-Off
Date.  As of any  Distribution  Date on or after  the first  anniversary  of the
Cut-Off  Date,  an amount  equal to (1) the  lesser of (a) the  Bankruptcy  Loss
Amount  calculated  as of the close of business on the Business Day  immediately
preceding the most recent  anniversary  of the Cut-Off Date  coinciding  with or
preceding  such  Distribution  Date (the  "Relevant  Anniversary")  and (b) such
lesser amount which,  as determined on the Relevant  Anniversary  will not cause
any rated  Certificates  to be placed on credit  review  status  (other than for
possible  upgrading) by either  Rating Agency minus (2) the aggregate  amount of
Bankruptcy  Losses  allocated  solely to the Class B Certificates  in accordance
with Section 4.02(a) since the Relevant Anniversary. On and after the Cross-Over
Date the Bankruptcy Loss Amount shall be zero.

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

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

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

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

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

     Certificate Register and Certificate Registrar:  Respectively, the register
maintained  pursuant to and the  registrar  provided  for in Section  5.02.  The
initial Certificate Registrar is the 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 variations in
the Percentage Interest evidenced thereby.

     Class A  Certificate:  Any one of the  Class  A-1  Certificates,  Class A-2
Certificates,   Class  A-3  Certificates,  Class  A-4  Certificates,  Class  A-5
Certificates, Class A-PO Certificates or Class A-R Certificate.

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

     Class A Distribution  Amount:  As to any Distribution Date and any Class of
Class A Certificates (other than the Class A-4 and Class A-PO Certificates), the
amount  distributable  to  such  Class  of  Class  A  Certificates  pursuant  to
Paragraphs  first,  second and third  clause (A) of Section  4.01(a).  As to the
Class A-4  Certificates,  (a) as to any Distribution Date prior to the Accretion
Termination  Date,  the  amount  distributable  to the  Class  A-4  Certificates
pursuant to the provisos in Paragraphs  first and second of Section  4.01(a) and
Paragraph  third  clause (A) of Section  4.01(a) and (b) as to any  Distribution
Date on or after the Accretion Termination Date, the amount distributable to the
Class A-4 Certificates pursuant to Paragraphs first, second and third clause (A)
of Section 4.01(a). As to any Distribution Date and the Class A-PO Certificates,
the amount  distributable to the Class A-PO Certificates  pursuant to Paragraphs
third clause (B) and fourth of Section 4.01(a) on such Distribution Date.

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

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

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

     Class A Interest  Shortfall  Amount:  As to any  Distribution  Date and any
Class of Class A Certificates,  any amount by which the Interest  Accrual Amount
of such  Class  with  respect  to such  Distribution  Date  exceeds  the  amount
distributed  in respect  of such Class on such  Distribution  Date  pursuant  to
Paragraph  first of  Section  4.01(a)  including,  in the case of the  Class A-4
Certificate prior to the Accretion  Termination Date, the amount included in the
Accrual Distribution Amount pursuant to clause (i) of the definition thereof.

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

     Class A Loss Denominator:  As to any Determination Date, an amount equal to
the sum of (i) the Principal  Balances of the Class A  Certificates  (other than
the Class A-4 and the Class  A-PO  Certificates)  and (ii) with  respect  to the
Class A-4  Certificates,  the lesser of the Principal  Balance of such Class A-4
Certificates and the Original Principal Balance of such Class A-4 Certificates.

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

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

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

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

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

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

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

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

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

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

     Class A Pass-Through Rate: As to the Class A-1, Class A-2, Class A-3, Class
A-4, Class A-5 and Class A-R Certificates,  the Class A Fixed Pass-Through Rate.
The Class A-PO  Certificates  are not  entitled to interest  and have no Class A
Pass-Through Rate.

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

     Class A Prepayment Percentage: As to any Distribution Date to and including
the  Distribution  Date  in  August  2003,  100%.  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 70% 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  60%  of  the  Subordinated
Percentage as of such Distribution  Date. As to any Distribution Date subsequent
to August 2005 to and including the Distribution  Date in August 2006, 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 2006 to and including the Distribution  Date in August 2007, 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  2007,  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 B Principal  Balance and (b) cumulative  Realized Losses shall
not  exceed  (1)  30%  of  the  Original  Class  B  Principal  Balance  if  such
Distribution  Date occurs  between and including  September 2003 and August 2004
(2) 35% of the  Original  Class B Principal  Balance if such  Distribution  Date
occurs  between and  including  September  2004 and August 2005,  (3) 40% of the
Original Class B Principal  Balance if such Distribution Date occurs between and
including  September  2005 and  August  2006,  (4) 45% of the  Original  Class B
Principal  Balance  if such  Distribution  Date  occurs  between  and  including
September  2006 and August 2007,  and (5) 50% of the Original  Class B Principal
Balance if such  Distribution  Date occurs during or after  September 2007. 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 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-PO Certificates and Class A-R Certificate.

     Class A Unpaid  Interest  Shortfall:  As to any  Distribution  Date and any
Class of Class A Certificates, the amount, if any, by which the aggregate of the
Class A Interest  Shortfall Amounts for such Class for prior  Distribution Dates
is in excess of the amounts distributed in respect of such Class (or in the case
of the Class A-4  Certificates  prior to the  Accretion  Termination  Date,  the
amount  included in the Accrual  Distribution  Amount pursuant to clause (ii) of
the definition thereof) on prior Distribution Dates pursuant to Paragraph second
of Section 4.01(a).

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

     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 C hereto.

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

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

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

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

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

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

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

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

     Class B Pass-Through Rate: As to any Distribution Date, 6.250% per annum.

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

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

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

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

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

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

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

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

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

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

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

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

                  (iv) the  Class B-1  Percentage  of the  excess of the  unpaid
         principal  balance of such  Mortgage Loan  substituted  for a defective
         Mortgage  Loan  during  the month  preceding  the  month in which  such
         Distribution  Date  occurs  over the unpaid  principal  balance of such
         defective  Mortgage  Loan,  less the amount  allocable to the principal
         portion of any unreimbursed  Periodic  Advances  previously made by the
         applicable  Servicer,  the Master Servicer or the 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 B-1 Optimal  Principal Amount
will equal the lesser of (A) the Class B-1 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-1 Certificates.

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

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

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

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

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

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

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

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

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

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

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

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

                  (iv) the  Class B-2  Percentage  of the  excess of the  unpaid
         principal  balance of such  Mortgage Loan  substituted  for a defective
         Mortgage  Loan  during  the month  preceding  the  month in which  such
         Distribution  Date  occurs  over the unpaid  principal  balance of such
         defective  Mortgage  Loan,  less the amount  allocable to the principal
         portion of any unreimbursed  Periodic  Advances  previously made by the
         applicable  Servicer,  the Master Servicer or the 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 B-2 Optimal  Principal Amount
will equal the lesser of (A) the Class B-2 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-2 Certificates.

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

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

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

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

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

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

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

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

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

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

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

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

                  (iv) the  Class B-3  Percentage  of the  excess of the  unpaid
         principal  balance of such  Mortgage Loan  substituted  for a defective
         Mortgage  Loan  during  the month  preceding  the  month in which  such
         Distribution  Date  occurs  over the unpaid  principal  balance of such
         defective  Mortgage  Loan,  less the amount  allocable to the principal
         portion of any unreimbursed  Periodic  Advances  previously made by the
         applicable  Servicer,  the Master Servicer or the 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 B-3 Optimal  Principal Amount
will equal the lesser of (A) the Class B-3 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-3 Certificates.

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

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

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

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

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

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

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

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

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

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

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

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

                  (iv) the  Class B-4  Percentage  of the  excess of the  unpaid
         principal  balance of such  Mortgage Loan  substituted  for a defective
         Mortgage  Loan  during  the month  preceding  the  month in which  such
         Distribution  Date  occurs  over the unpaid  principal  balance of such
         defective  Mortgage  Loan,  less the amount  allocable to the principal
         portion of any unreimbursed  Periodic  Advances  previously made by the
         applicable  Servicer,  the Master Servicer or the 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 B-4 Optimal  Principal Amount
will equal the lesser of (A) the Class B-4 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-4 Certificates.

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

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

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

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

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

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

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

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

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

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

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

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

                  (iv) the  Class B-5  Percentage  of the  excess of the  unpaid
         principal  balance of such  Mortgage Loan  substituted  for a defective
         Mortgage  Loan  during  the month  preceding  the  month in which  such
         Distribution  Date  occurs  over the unpaid  principal  balance of such
         defective  Mortgage  Loan,  less the amount  allocable to the principal
         portion of any unreimbursed  Periodic  Advances  previously made by the
         applicable  Servicer,  the Master Servicer or the 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 B-5 Optimal  Principal Amount
will equal the lesser of (A) the Class B-5 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-5 Certificates.

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

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

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

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

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

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

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

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

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

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

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

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

                  (iv) the  Class B-6  Percentage  of the  excess of the  unpaid
         principal  balance of such  Mortgage Loan  substituted  for a defective
         Mortgage  Loan  during  the month  preceding  the  month in which  such
         Distribution  Date  occurs  over the unpaid  principal  balance of such
         defective  Mortgage  Loan,  less the amount  allocable to the principal
         portion of any unreimbursed  Periodic  Advances  previously made by the
         applicable  Servicer,  the Master Servicer or the 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 B-6 Optimal  Principal Amount
will equal the lesser of (A) the Class B-6 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-6 Certificates.

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

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

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

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

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

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

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

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

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

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

     Corporate Trust Office:  The principal  office of the 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 230 South
Tryon Street, Charlotte, North Carolina 28288.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

     Discount  Mortgage Loan: A Mortgage Loan with a Net Mortgage  Interest Rate
of less than 6.250%.

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

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

     Eligible  Account:  One or more  accounts  (i) that are  maintained  with a
depository  institution  (which may be the Master Servicer) whose long-term debt
obligations  (or,  in the case of a  depository  institution  which is part of a
holding company structure, the long-term debt obligations of such parent holding
company)  at the  time of  deposit  therein  are  rated  at  least  "AA" (or the
equivalent) by each of the Rating Agencies, (ii) the deposits in which are fully
insured  by the FDIC  through  either  the Bank  Insurance  Fund or the  Savings
Association  Insurance Fund, (iii) the deposits in which are insured by the FDIC
through either the Bank Insurance Fund or the Savings Association Insurance Fund
(to the  limit  established  by the FDIC) and the  uninsured  deposits  in which
accounts are otherwise secured,  as evidenced by an Opinion of Counsel delivered
to the 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 a REMIC or result in the  imposition of any federal tax on
the REMIC.

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

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

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

                 (iii)  commercial or finance  company paper which is then rated
         in the highest  long-term  commercial  or finance  company paper rating
         category  of  each  Rating  Agency  or the  highest  short-term  rating
         category of each Rating Agency,  or such lower rating category as would
         not result in the downgrading or withdrawal of the rating then assigned
         to any of the  Certificates by either Rating Agency or result in any of
         such rated  Certificates  being placed on credit  review  status (other
         than for possible upgrading) by either Rating Agency;

                  (iv) certificates of deposit, demand or time deposits, federal
         funds or banker's  acceptances issued by any depository  institution or
         trust  company  incorporated  under the laws of the United States or of
         any state thereof and subject to supervision and examination by federal
         and/or state banking  authorities,  provided that the commercial  paper
         and/or debt obligations of such depository institution or trust company
         (or in the case of the principal  depository  institution  in a holding
         company  system,  the  commercial  paper  or debt  obligations  of such
         holding  company)  are then  rated  in the  highest  short-term  or the
         highest  long-term  rating  category for such securities of each of the
         Rating Agencies, or such lower rating categories as would not result in
         the downgrading or withdrawal of the rating then assigned to any of the
         Certificates  by either  Rating  Agency or result in any of such  rated
         Certificates  being  placed on credit  review  status  (other  than for
         possible upgrading) by either Rating Agency;

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

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

                 (vii) securities  (other than stripped bonds or stripped coupon
         securities)  bearing  interest  or sold  at a  discount  issued  by any
         corporation incorporated under the laws of the United States of America
         or any  state  thereof  which,  at  the  time  of  such  investment  or
         contractual commitment providing for such investment, are then rated in
         the highest short-term or the highest long-term rating category by each
         Rating Agency,  or in such lower rating category as would not result in
         the downgrading or withdrawal of the rating then assigned to any of the
         Certificates  by either  Rating  Agency or result in any of such  rated
         Certificates  being  placed on credit  review  status  (other  than for
         possible upgrading) by either Rating Agency; and

                (viii) such other  investments  acceptable to each Rating Agency
         as would not result in the  downgrading  of the rating then assigned to
         the Certificates by either Rating Agency or result in any of such rated
         Certificates  being  placed on credit  review  status  (other  than for
         possible upgrading) by either Rating Agency.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

     Final Scheduled  Maturity Date: The Final  Scheduled  Maturity Date for the
Class A-1, Class A-2,  Class A-3,  Class A-4, Class A-5, Class A-PO,  Class A-R,
Class B-1, Class B-2, Class B-3, Class B-4, Class B-5 and Class B-6 Certificates
is September 25, 2028 which  corresponds to the "latest possible  maturity date"
for  purposes of Section  860G(a)(1)  of the Internal  Revenue Code of 1986,  as
amended.

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

     Fixed  Retained  Yield:  The fixed  percentage of interest on each Mortgage
Loan with a Mortgage  Interest Rate greater than the sum of (a) 6.250%,  (b) the
Servicing  Fee  Rate  and (c) the  Master  Servicing  Fee  Rate,  which  will be
determined on a loan by loan basis and will equal the Mortgage  Interest Rate on
each Mortgage  Loan minus the sum of (a), (b) and (c),  which is not assigned to
and not part of the Trust Estate.

     Fixed Retained Yield Rate:  With respect to each Mortgage Loan, a per annum
rate equal to the greater of (a) zero and (b) the Mortgage Interest Rate on such
Mortgage Loan minus the sum of (i) 6.250%, (ii) the Servicing Fee Rate and (iii)
the Master Servicing Fee Rate.

     FNMA: Fannie Mae or any successor thereto.

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

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

     Fraud Loss Amount:  As of any  Distribution  Date after the Cut-Off Date an
amount  equal to:  (X) prior to the first  anniversary  of the  Cut-Off  Date an
amount  equal to  $5,006,408.65  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.

     Interest Accrual Amount: As to any Distribution Date and any Class of Class
A Certificates (other than the Class A-PO Certificates),  (i) the product of (a)
1/12th of the Class A  Pass-Through  Rate for such  Class and (b) the  Principal
Balance of such Class as of the  Determination  Date preceding such Distribution
Date  minus  (ii)  the  Class A  Interest  Percentage  of such  Class 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). The Class A-PO Certificates have no
Interest Accrual Amount.

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

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

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

     Liquidation  Expenses:  Expenses  incurred by a Servicer in connection with
the liquidation of any defaulted  Mortgage Loan or property  acquired in respect
thereof (including,  without limitation,  legal fees and expenses,  committee or
referee fees, and, if applicable,  brokerage  commissions and conveyance taxes),
any unreimbursed  advances  expended by such Servicer  pursuant to its Servicing
Agreement  or the Master  Servicer or 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.

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

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

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

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

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

     (i)  the Mortgage Loan identifying number;

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

     (iii) the type of property;

     (iv) the Mortgage Interest Rate;

     (v)  the Net Mortgage Interest Rate;

     (vi) the Monthly Payment;

     (vii) the original number of months to maturity;

     (viii) the scheduled maturity date;

     (ix) the Cut-Off Date Principal Balance;

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

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

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

     (xiii) the Servicing Fee Rate;

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

     (xv) the Master Servicing Fee;

     (xvi) Fixed Retained Yield, if applicable; and

     (xvii) for each Exhibit F-2 Mortgage  Loan,  the name of the Servicer  with
          respect thereto.

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

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

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

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

     Mortgagor: The obligor on a Mortgage Note.

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

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

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

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

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

     Non-PO Fraction:  With respect to any Mortgage Loan, the lesser of (i) 1.00
and (ii) the quotient  obtained by dividing the Net Mortgage  Interest  Rate for
such Mortgage Loan by 6.250%.

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

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

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

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

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

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

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

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

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

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

     Original  Class  A  Non-PO  Principal  Balance:  The  sum of  the  Original
Principal  Balances of the Class A-1, Class A-2, Class A-3, Class A-4, Class A-5
and Class A-R Certificates, as set forth in Section 11.06.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

     Owner  Mortgage  Loan  File:  A file  maintained  by the  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 of a Class, the
undivided  percentage  interest  obtained by  dividing  the  original  principal
balance of such Certificate by the Original  Principal  Balance of such Class of
Class A  Certificates.  With respect to a Class B  Certificate  of a Class,  the
undivided  percentage  interest  obtained by  dividing  the  original  principal
balance of such Certificate by the Original  Principal  Balance of such Class of
Class B Certificates.

     Periodic  Advance:  The aggregate of the advances  required to be made by a
Servicer on any Distribution Date pursuant to its Servicing  Agreement or by the
Master Servicer or the 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.

     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 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;

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

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

                  (j) Net Foreclosure Profits;

                  (k) Month End Interest; and

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

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

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

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

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


   Distribution Date Occurring In                       Prepayment Shift
                                                           Percentage

   September 1998 through August 2003...................         0%

   September 2003 through August 2004...................        30%

   September 2004 through August 2005...................        40%

   September 2005 through August 2006...................        60%

   September 2006 through August 2007...................        80%

   September 2007 and thereafter........................       100%

     Principal  Accretion Amount: With respect to the Class A-4 Certificates and
as to any Distribution  Date prior to the Accretion  Termination Date, an amount
equal to the sum of the amounts  calculated  pursuant to clauses (i) and (ii) of
the definition of Accrual  Distribution Amount with respect to such Distribution
Date.

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

     Principal Balance:  As of the first  Determination Date and as to any Class
of Class A Certificates, the Original Principal Balance of such Class. As of any
subsequent  Determination  Date prior to the Cross-Over Date and as to any Class
of Class A Certificates (other than the Class A-PO  Certificates),  the Original
Principal  Balance  of  such  Class  (increased  in the  case of the  Class  A-4
Certificates  by  the  Principal   Accretion   Amounts  with  respect  to  prior
Distribution  Dates for such Class)  less the sum of (a) all amounts  previously
distributed in respect of such Class on prior Distribution Dates (i) pursuant to
Paragraph third clause (A) of Section  4.01(a),  (ii) as a result of a Principal
Adjustment,  and (iii) if applicable,  from the Accrual Distribution Amounts for
such prior Distribution Dates and (b) the Realized Losses allocated through such
Determination  Date to  such  Class  pursuant  to  Section  4.02(b).  After  the
Cross-Over  Date,  each such  Principal  Balance  will also be  reduced  on each
Determination  Date  by an  amount  equal  to the  product  of the  Class A Loss
Percentage  of such  Class  and the  excess,  if any,  of (i) the Class A Non-PO
Principal Balance as of such  Determination Date without regard to this sentence
over (ii) the difference  between (A) the Adjusted Pool Amount for the preceding
Distribution  Date  and  (B) the  Adjusted  Pool  Amount  (PO  Portion)  for the
preceding Distribution Date.

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

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

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

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

     Priority  Amount:  For any  Distribution  Date  means the lesser of (i) the
Principal  Balance  of the  Class A-5  Certificates  and (ii) the sum of (A) the
product of (1) the Priority Percentage,  (2) the Shift Percentage, (3) the Class
A Percentage and (4) the Scheduled  Principal  Amount and (B) the product of (1)
the Priority  Percentage,  (2) the Prepayment Shift Percentage,  (3) the Class A
Percentage and (4) the Unscheduled Principal Amount.

     Priority  Percentage:  The  lesser of (i) 99.00% or (ii) the sum of (A) the
Principal Balance of the Class A-5 Certificates and (B)  $4,600,000.00,  divided
by the Class A Non-PO Principal Balance.

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

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

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

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

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

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

     Relevant Anniversary: See "Bankruptcy Loss Amount."

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

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

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

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

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

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

     Responsible Officer: When used with respect to the Trustee, 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  such  amounts  being
multiplied by the Class A Percentage.

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

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

     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.  and The
Huntington Mortgage Company, as Servicer under the related Servicing Agreement.

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

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

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

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

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

Distribution Date Occurring In                        Shift Percentage

September 1998 through August 2003...............            0%
September 2003 and thereafter....................           100%

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

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

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

                  (1)      normal wear and tear;

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

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

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

     Special Hazard Loss Amount: As of any Distribution Date, an amount equal to
$2,503,204.33 minus the sum of (i) the aggregate amount of Special Hazard Losses
allocated  solely to the Class B Certificates in accordance with Section 4.02(a)
and (ii) the  Special  Hazard  Adjustment  Amount  (as  defined  below)  as most
recently  calculated.  For each  anniversary  of the Cut-Off  Date,  the Special
Hazard  Adjustment  Amount shall be calculated and shall be equal to the amount,
if any, by which the amount calculated in accordance with the preceding sentence
(without giving effect to the deduction of the Special Hazard  Adjustment Amount
for such  anniversary)  exceeds  the  greater of (A) the  product of the Special
Hazard Percentage for such anniversary  multiplied by the outstanding  principal
balance of all the Mortgage Loans on the Distribution Date immediately preceding
such  anniversary,  (B) twice the outstanding  principal balance of the Mortgage
Loan in the Trust Estate which has the largest outstanding  principal balance on
the Distribution Date immediately  preceding such anniversary and (C) that which
is necessary to maintain the original  ratings on the  Certificates as evidenced
by letters to that effect  delivered by Rating  Agencies to the Master  Servicer
and the  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.

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

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

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

     Substitute Mortgage Loan: As defined in Section 2.02

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

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

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

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

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

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

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

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

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

     Voting  Interest:  With respect to any provisions  hereof providing for the
action,  consent  or  approval  of the  Holders of all  Certificates  evidencing
specified  Voting  Interests in the Trust  Estate,  the Holders of each Class of
Certificates will collectively be entitled to the then applicable  percentage of
the aggregate Voting Interest represented by all Certificates equal to the ratio
obtained by dividing the Principal Balance of such Class by the sum of the Class
A Principal Balance and the Class B Principal Balance. Each Certificateholder of
a Class will have a Voting  Interest equal to the product of the Voting Interest
to which such Class is collectively entitled and the Percentage Interest in such
Class represented by such Holder's Certificates.  With respect to any provisions
hereof  providing for action,  consent or approval of each Class of Certificates
or specified  Classes of Certificates,  each  Certificateholder  of a Class will
have a Voting Interest in such Class equal to such Holder's  Percentage Interest
in such Class.

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

Section 1.02.     Acts of Holders.

     (a) Any request, demand, authorization,  direction, notice, consent, waiver
or other action  provided by this  Agreement to be given or taken by Holders may
be embodied in and evidenced by one or more instruments of substantially similar
tenor signed by such Holders in person or by an agent duly appointed in writing.
Except  as  herein  otherwise  expressly  provided,  such  action  shall  become
effective  when such  instrument  or  instruments  are delivered to the Trustee.
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  and the  Holders of the  Certificates  any benefit or any
legal or equitable right, power, remedy or claim under this Agreement.


<PAGE>


ARTICLE II

CONVEYANCE OF MORTGAGE LOANS;
ORIGINAL ISSUANCE OF THE CERTIFICATES

Section 2.01.     Conveyance of Mortgage Loans.

     The Seller,  concurrently  with the  execution  and delivery  hereof,  does
hereby assign to the Trustee, without recourse all the right, title and interest
of the Seller in and to (a) the Trust Estate, including all interest (other than
the  portion,  if any,  representing  the Fixed  Retained  Yield) and  principal
received  by the  Seller on or with  respect  to the  Mortgage  Loans  after the
Cut-Off Date (and  including  scheduled  payments of principal  and interest due
after the Cut-Off  Date but received by the Seller on or before the Cut-Off Date
and Unscheduled  Principal Receipts received or applied on the Cut-Off Date, but
not including payments of principal and interest due on the Mortgage Loans on or
before the Cut-Off Date), (b) the Insurance Policies, (c) the obligations of the
Servicers under the Servicing  Agreements with respect to the Mortgage Loans and
(d) proceeds of all the foregoing.

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

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

Section 2.02.     Acceptance by Trustee.

     The Trustee acknowledges receipt of the Mortgage Notes, the Mortgages,  the
assignments  and other  documents  required to be  delivered on the Closing Date
pursuant  to Section  2.01 above and  declares  that it holds and will hold such
documents and the other documents constituting a part of the Owner Mortgage Loan
Files  delivered to it in trust,  upon the trusts herein set forth,  for the use
and benefit of all present and future  Certificateholders.  The Trustee  agrees,
for the benefit of  Certificateholders,  to review each Owner Mortgage Loan File
within 45 days after  execution of this Agreement in order to ascertain that all
required documents set forth in Section 2.01 have been executed and received and
appear  regular on their face,  and that such  documents  relate to the Mortgage
Loans identified in the Mortgage Loan Schedule,  and in so doing the Trustee may
rely on the purported due execution and  genuineness of any such document and on
the purported genuineness of any signature thereon. If within such 45 day period
the Trustee  finds any document  constituting  a part of an Owner  Mortgage Loan
File not to have been  executed or received or to be  unrelated  to the Mortgage
Loans  identified in the Mortgage Loan Schedule or not to appear  regular on its
face,  the Trustee  shall  promptly (and in no event more than 30 days after the
discovery  of such  defect)  notify the Seller,  which shall have a period of 60
days  after the date of such  notice  within  which to  correct or cure any such
defect.  The Seller hereby  covenants and agrees that, if any material defect is
not so  corrected or cured,  the Seller  will,  not later than 60 days after the
Trustee's  notice to it referred to above  respecting  such  defect,  either (i)
repurchase the related Mortgage Loan or any property acquired in respect thereof
from the  Trust  Estate  at a price  equal to (a) 100% of the  unpaid  principal
balance of such Mortgage Loan plus (b) accrued interest at the Mortgage Interest
Rate 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,  the Master
Servicer or the 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
         Master Servicer or any of its assets;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

                  (xv)  The  Mortgage   Loan  (except  (A)  any  Mortgage   Loan
         identified on the Mortgage Loan Schedule as a T.O.P.  Mortgage Loan and
         (B) any Mortgage  Loan secured by a Mortgaged  Property  located in any
         jurisdiction, as to which an opinion of counsel of the type customarily
         rendered in such  jurisdiction  in lieu of title  insurance  is instead
         received) is covered by an American  Land Title  Association  mortgagee
         title insurance policy or other generally  acceptable form of policy or
         insurance  acceptable  to  FNMA or  FHLMC,  issued  by a title  insurer
         acceptable to FNMA or FHLMC insuring the originator, its successors and
         assigns,  as to the first priority lien of the Mortgage in the original
         principal  amount of the Mortgage Loan and subject only to (A) the lien
         of current real property taxes and assessments not yet due and payable,
         (B) covenants,  conditions and restrictions,  rights of way,  easements
         and other  matters of public record as of the date of recording of such
         Mortgage  acceptable to mortgage  lending  institutions  in the area in
         which the Mortgaged Property is located or specifically  referred to in
         the  appraisal  performed in  connection  with the  origination  of the
         related Mortgage Loan, (C) liens created pursuant to any federal, state
         or local law,  regulation or ordinance affording liens for the costs of
         clean-up  of  hazardous  substances  or  hazardous  wastes or for other
         environmental  protection  purposes and (D) such other matters to which
         like properties are commonly subject which do not  individually,  or in
         the aggregate,  materially  interfere with the benefits of the security
         intended to be provided by the Mortgage; the Seller is the sole insured
         of such mortgagee title insurance policy, the assignment to the 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  National  Flood
         Insurance  Act of 1968,  as amended;  and each  Mortgage  obligates the
         Mortgagor  thereunder to maintain all such insurance at the Mortgagor's
         cost and expense;

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

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

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

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

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

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

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

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

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

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

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

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

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

Section 2.04.     Execution and Delivery of Certificates.

     The Trustee acknowledges the assignment to it of the Mortgage Loans and the
delivery of the Owner  Mortgage  Loan Files to it, and,  concurrently  with such
delivery,  has  executed and  delivered  to or upon the order of the Seller,  in
exchange for the Mortgage Loans  together with all other assets  included in the
definition  of  "Trust  Estate",   receipt  of  which  is  hereby  acknowledged,
Certificates in authorized  denominations which evidence ownership of the entire
Trust Estate.

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

     The Seller hereby  designates  the Classes of Class A  Certificates  (other
than the Class A-R  Certificate)  and the  Classes  of Class B  Certificates  as
classes of "regular interests" and the Class A-R Certificate as the single class
of "residual interest" in the REMIC for the purposes of Code Sections 860G(a)(1)
and  860G(a)(2),  respectively.  The Closing  Date is hereby  designated  as the
"Startup  Day" of the REMIC within the meaning of Code Section  860G(a)(9).  The
"latest  possible  maturity  date"  of the  regular  interests  in the  REMIC is
September 25, 2028 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 any amounts deemed received
         by the Master Servicer pursuant to Section 3.01(d); and

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

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

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

Section 3.02.     Permitted Withdrawals from the Certificate Account.

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

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

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

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

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

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

Section 3.03.     Advances by Master Servicer and 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 by Norwest Mortgage or such Other Servicer,  (iii)
the amount that the Trustee or Master Servicer is required to advance  hereunder
and (iv) whether the Master Servicer has determined that it reasonably  believes
that such Periodic Advance is a Nonrecoverable Advance.  Amounts advanced by the
Trustee or Master Servicer shall be deposited in the Certificate  Account on the
related  Distribution Date.  Notwithstanding  the foregoing,  neither the Master
Servicer nor the Trustee  will be  obligated to make a Periodic  Advance that it
reasonably believes to be a Nonrecoverable Advance. The Trustee may conclusively
rely for any  determination to be made by it hereunder upon the determination of
the Master Servicer as set forth in its certificate.

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

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

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

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

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

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

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

Section 3.05.     Reports to the Trustee; Annual Compliance Statements.

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

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

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

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

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

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

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

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

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

Section 3.08.     Oversight of Servicing.

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

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

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

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

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

     The Seller  shall be entitled  to  repurchase  at its option 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.  The purchase price for any such Mortgage Loan shall
be 100% of the unpaid  principal  balance  of such  Mortgage  Loan plus  accrued
interest thereon at the Mortgage  Interest Rate for such Mortgage Loan,  through
the last day of the month in which such repurchase  occurs.  Upon the receipt of
such  purchase  price,  the Master  Servicer  shall  provide to the  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 REMIC.

     The Master  Servicer may enter into a special  servicing  agreement with an
unaffiliated  holder  of  100%  Percentage  Interest  of  a  Class  of  Class  B
Certificates or a holder of a class of securities  representing interests in the
Class  B   Certificates   and/or  other   subordinated   mortgage   pass-through
certificates, such agreement to be substantially in the form of Exhibit M hereto
or  subject  to each  Rating  Agency's  acknowledgment  that the  ratings of the
Certificates in effect  immediately prior to the entering into of such agreement
would not be qualified,  downgraded or withdrawn and the Certificates  would not
be placed on credit review status (except for possible upgrading) as a result of
such agreement.  Any such agreement may contain  provisions  whereby such holder
may instruct the Master  Servicer to instruct a Servicer to the extent  provided
in  the  applicable   Servicing  Agreement  to  commence  or  delay  foreclosure
proceedings  with  respect  to  delinquent   Mortgage  Loans  and  will  contain
provisions  for the  deposit of cash by the holder that would be  available  for
distribution to  Certificateholders  if Liquidation  Proceeds are less than they
otherwise  may have been had the Servicer  acted in  accordance  with its normal
procedures.

Section 3.09.     Termination and Substitution of Servicing Agreements.

     Upon the  occurrence  of any event for which a Servicer  may be  terminated
pursuant to its Servicing Agreement,  the Master Servicer shall promptly deliver
to the Seller and the Trustee an Officer's Certificate  certifying that an event
has  occurred  which  may  justify  termination  of  such  Servicing  Agreement,
describing the circumstances surrounding such event and recommending what action
should be taken by the  Trustee  with  respect to such  Servicer.  If the Master
Servicer  recommends  that such Servicing  Agreement be  terminated,  the Master
Servicer's  certification  must state that the breach is material and not merely
technical in nature.  Upon written direction of the Master Servicer,  based upon
such  certification,   the  Trustee  shall  promptly  terminate  such  Servicing
Agreement. Notwithstanding the foregoing, in the event that (i) Norwest Mortgage
fails to make any advance, as a consequence of which the 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.     Application of Net Liquidation Proceeds.

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

Section 3.11.     1934 Act Reports.

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


<PAGE>


ARTICLE IV

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

Section 4.01.     Distributions.

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

     first, to the Classes of Class A Certificates,  pro rata,  based upon their
respective  Interest Accrual  Amounts,  in an aggregate amount up to the Class A
Interest Accrual Amount with respect to such  Distribution  Date;  provided that
prior to the  Accretion  Termination  Date,  an amount  equal to the amount that
would  otherwise  be  distributable  in  respect  of  interest  to the Class A-4
Certificates pursuant to this provision will instead be distributed in reduction
of the Principal  Balances of certain Classes of Class A  Certificates,  in each
case in accordance with Section 4.01(b);

     second, to the Classes of Class A Certificates,  pro rata, based upon their
respective Class A Unpaid Interest Shortfalls,  in an aggregate amount up to the
Aggregate  Class  A  Unpaid  Interest  Shortfall;  provided  that  prior  to the
Accretion  Termination  Date, an amount equal to the amount that would otherwise
be  distributable  in respect  of unpaid  interest  shortfalls  to the Class A-4
Certificates pursuant to this provision will instead be distributed in reduction
of the Principal  Balances of certain Classes of Class A  Certificates,  in each
case in accordance with Section 4.01(b);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

     Notwithstanding  the  foregoing,  after the Principal  Balance of any Class
(other than the Class A-R Certificate) has been reduced to zero, such Class will
be entitled to no further  distributions  of principal  or interest  (including,
without limitation, any Unpaid Interest Shortfalls).

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

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

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

                  first,  to the Class A-5  Certificates up to the lesser of (a)
         the Class A-5 Priority Amount for such  Distribution Date and (b) 98.6%
         of the Class A Non-PO Principal Amount;

                  second, concurrently,

                           (a)  42.5529524131%  to the Class  A-1  Certificates,
                  until the Principal  Balance thereof has been reduced to zero;
                  and

                           (b) 57.4470475869% sequentially as follows:

                                    (i)  to the  Class  A-3  Certificates  until
                           $12,270,000  has been  distributed  to the  Class A-3
                           Certificates pursuant to this clause second (b)(i) on
                           such  Distribution  Date and all  prior  Distribution
                           Dates;

                                    (ii)  concurrently,  73.0003492840%  to  the
                           Class  A-2  Certificates  and  26.9996507160%  to the
                           Class A-3  Certificates,  until the Principal Balance
                           of the Class A-2  Certificates  has been  reduced  to
                           zero; and

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

     third, to the Class A-4  Certificates,  until the Principal Balance thereof
has been reduced to zero;

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

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

     (c) Notwithstanding  the foregoing,  on each Distribution Date occurring on
or subsequent to the Cross-Over Date, the Class A Non-PO Principal  Distribution
Amount shall be  distributed  among the Classes of Class A  Certificates  (other
than the Class A-PO  Certificates) pro rata in accordance with their outstanding
Principal  Balances  without regard to either the  proportions or the priorities
set forth in Section 4.01(b).

     (d)  (i) For  purposes  of  determining  whether  the  Classes  of  Class B
Certificates are eligible to receive  distributions of principal with respect to
any Distribution Date, the following tests shall apply:

                  (A) if the Current Class B-1 Fractional  Interest is less than
         the Original Class B-1 Fractional  Interest and the Class B-1 Principal
         Balance is  greater  than zero,  the Class B-2,  Class B-3,  Class B-4,
         Class B-5 and Class B-6  Certificates  shall not be eligible to receive
         distributions of principal; or

                  (B) if the Current Class B-2 Fractional  Interest is less than
         the Original Class B-2 Fractional  Interest and the Class B-2 Principal
         Balance is greater than zero,  the Class B-3,  Class B-4, Class B-5 and
         Class B-6 Certificates  shall not be eligible to receive  distributions
         of principal; or

                  (C) if the Current Class B-3 Fractional  Interest is less than
         the Original Class B-3 Fractional  Interest and the Class B-3 Principal
         Balance is greater  than zero,  the Class B-4,  Class B-5 and Class B-6
         Certificates  shall  not  be  eligible  to  receive   distributions  of
         principal; or

                  (D) if the Current Class B-4 Fractional  Interest is less than
         the Original Class B-4 Fractional  Interest and the Class B-4 Principal
         Balance is greater than zero, the Class B-5 and Class B-6  Certificates
         shall not be eligible to receive distributions of principal; or

                  (E) if the Current Class B-5 Fractional  Interest is less than
         the Original Class B-5 Fractional  Interest and the Class B-5 Principal
         Balance is greater than zero, the Class B-6  Certificates  shall not be
         eligible to receive distributions of principal.

     (ii)  Notwithstanding  the  foregoing,  if on  any  Distribution  Date  the
aggregate  distributions  to  Holders  of the  Classes  of Class B  Certificates
entitled  to receive  distributions  of  principal  would  reduce the  Principal
Balances   of  the  Classes  of  Class  B   Certificates   entitled  to  receive
distributions of principal below zero,  first the Class B Prepayment  Percentage
of any  affected  Class  of Class B  Certificates  for  such  Distribution  Date
beginning with the affected Class with the lowest  numerical  Class  designation
and then,  if  necessary,  the Class B  Percentage  of such Class of the Class B
Certificates  for such  Distribution  Date shall be  reduced  to the  respective
percentages  necessary to bring the  Principal  Balance of such Class of Class B
Certificates  to  zero.  The  Class B  Prepayment  Percentages  and the  Class B
Percentages of the remaining  Classes of Class B Certificates will be recomputed
substituting  for  the  Subordinated   Prepayment  Percentage  and  Subordinated
Percentage in such  computations  the  difference  between (A) the  Subordinated
Prepayment  Percentage or Subordinated  Percentage,  as the case may be, and (B)
the percentages  determined in accordance with the preceding  sentence necessary
to bring the Principal  Balances of the affected Classes of Class B Certificates
to zero; provided, however, that if the Principal Balances of all the Classes of
Class B Certificates  eligible to receive  distributions  of principal  shall be
reduced to zero on such Distribution Date, the Class B Prepayment Percentage and
the Class B  Percentage  of the Class of Class B  Certificates  with the  lowest
numerical  Class  designation  which would  otherwise be  ineligible  to receive
distributions  of principal  in  accordance  with this  Section  shall equal the
remainder of the Subordinated  Prepayment  Percentage for such Distribution Date
minus the sum of the Class B  Prepayment  Percentages  of the Classes of Class B
Certificates  having  lower  numerical  Class  designations,  if  any,  and  the
remainder of the Subordinated  Percentage for such  Distribution  Date minus the
sum of the Class B  Percentages  of the Classes of Class B  Certificates  having
lower numerical Class designations, if any, respectively. Any entitlement of any
Class of Class B  Certificates  to principal  payments  solely  pursuant to this
clause  (ii) shall not cause  such Class to be  regarded  as being  eligible  to
receive  principal  distributions  for the purpose of applying the definition of
its Class B Percentage or Class B Prepayment Percentage.

     (e) On each  Distribution  Date other than the Final  Distribution Date (if
such Final  Distribution  Date is in connection with a purchase of the assets of
the Trust Estate by the Seller), the Paying Agent shall, on behalf of the Master
Servicer,  from funds remitted to it by the Master Servicer,  distribute to each
Certificateholder of record on the preceding Record Date (other than as provided
in Section 9.01 respecting the final  distribution to  Certificateholders  or in
the last paragraph of this Section 4.01(e)  respecting the final distribution in
respect of any Class) either in immediately  available funds by wire transfer to
the  account  of  such  Certificateholder  at a  bank  or  other  entity  having
appropriate  facilities therefor, if such  Certificateholder  holds Certificates
having a Denomination at least equal to that specified in Section 11.23, and has
so notified  the Master  Servicer or, if  applicable,  the Paying Agent at least
seven  Business  Days prior to the  Distribution  Date or, if such Holder  holds
Certificates  having,  in the aggregate,  a Denomination less than the requisite
minimum  Denomination  or if such Holder holds the Class A-R  Certificate or has
not so notified the Paying Agent,  by check mailed to such Holder at the address
of such Holder appearing in the Certificate Register, such Holder's share of the
Class A  Distribution  Amount with respect to each Class of Class A Certificates
and the  Class B  Distribution  Amount  with  respect  to each  Class of Class B
Certificates.

     In the event that, on any Distribution Date prior to the Final Distribution
Date, the Principal Balance of any Class of Class A Certificates (other than the
Class  A-R  Certificate)  or the  Principal  Balance  of any  Class  of  Class B
Certificates  would be reduced to zero, the Master  Servicer  shall,  as soon as
practicable  after the Determination  Date relating to such  Distribution  Date,
send a notice  to the  Trustee.  The  Trustee  will  then  send a notice to each
Certificateholder  of  such  Class  with a copy  to the  Certificate  Registrar,
specifying that the final  distribution  with respect to such Class will be made
on such  Distribution  Date only upon the  presentation  and  surrender  of such
Certificateholder's  Certificates at the office or agency of the 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).

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

Section 4.02.     Allocation of Realized Losses.

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

     first, to the Class B-6 Certificates  until the Class B-6 Principal Balance
has been reduced to zero;

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

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

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

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

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

     seventh,  concurrently,  to the Class A Certificates  (other than the Class
A-PO  Certificates) and Class A-PO  Certificates,  pro rata, based on the Non-PO
Fraction and the PO Fraction, respectively.

     This allocation of Realized  Losses will be effected  through the reduction
of the applicable Class's Principal Balance.

     (b) With respect to any Distribution  Date, the principal portion of Excess
Special  Hazard  Losses,  Excess  Fraud  Losses  and  Excess  Bankruptcy  Losses
occurring  with  respect  to any  Mortgage  Loan  allocable  to the  Class  A-PO
Certificates will equal the product of the amount of any such principal loss and
the PO Fraction for such  Mortgage  Loan.  The  principal  portion of any Excess
Special  Hazard  Losses,  Excess  Fraud  Losses  and  Excess  Bankruptcy  Losses
remaining after allocation to the Class A-PO Certificates in accordance with the
preceding  sentence  shall be allocated pro rata among the Class A  Certificates
(other than the Class A-PO  Certificates) and Class B Certificates  based on the
Class  A  Non-PO   Principal   Balance  and  the  Class  B  Principal   Balance,
respectively.  Any such  loss  allocated  to the Class A  Certificates  shall be
allocated on the subsequent  Determination Date among the outstanding Classes of
Class A Certificates (other than the Class A-PO Certificates) in accordance with
the  Class A Loss  Percentages  as of such  Determination  Date.  Any such  loss
allocated  to the Class B  Certificates  shall be  allocated  pro rata among the
outstanding Classes of Class B Certificates based on their Principal Balances.

     (c) Any Realized  Losses  allocated to a Class of Class A  Certificates  or
Class B  Certificates  pursuant to Section  4.02(a) or Section  4.02(b) shall be
allocated  among  the  Certificates  of such  Class  based on  their  Percentage
Interests.

     (d) In the event  that  there is a  Recovery  of an amount  in  respect  of
principal of a Mortgage Loan which had  previously  been allocated as a Realized
Loss  to any  Classes  of  Class  A  Certificates  or any  Classes  of  Class  B
Certificates,  each outstanding Class to which such Realized Loss had previously
been  allocated  shall be entitled to its share (with  respect to the Class A-PO
Certificates,  based on the PO Fraction of such  Mortgage Loan and, with respect
to the Class A Certificates (other than the Class A-PO Certificates) and Class B
Certificates,  based on their  pro rata  share of the  Non-PO  Fraction  of such
Mortgage  Loan)  of  such  Recovery  up to the  amount  of  such  Realized  Loss
previously  allocated  to such  Class  on the  Distribution  Date  in the  month
following  the month in which such  recovery  is  received.  When the  Principal
Balance of a Class of  Certificates  has been reduced to zero,  such Class shall
not be entitled to any share of such  Recovery.  In the event that the amount of
such Recovery exceeds the amount of such Recovery  allocated to each outstanding
Class in accordance with the preceding provisions,  each outstanding Class shall
be entitled to its pro rata share (determined as described above) of such excess
up to the amount of any unrecovered  Realized Loss previously  allocated to such
Class.  Notwithstanding the foregoing  provisions,  but subject to the following
proviso,  if such Recovery  occurs within two years of the  realization  of such
loss and (i) is the  result  of an  event  that  would  have  given  rise to the
repurchase of the related  Mortgage Loan by the Seller  pursuant to Section 2.02
or 2.03, or (ii) represents in whole or part funds which the applicable Servicer
had  received  in  respect  of a  Liquidated  Loan  but  failed  to remit to the
Certificate  Account on or prior to the Business Day preceding the  Distribution
Date following the Applicable  Unscheduled Principal Receipt Period in which the
Mortgage  Loan  became  a  Liquidated  Loan,  such  Recovery  may,  at the  sole
discretion of the Master Servicer,  be treated as a repurchase or an Unscheduled
Principal  Receipt with respect to such  Mortgage  Loan, as the case may be, the
Realized  Loss  previously  recognized  may be  reversed  and  treated  for  all
subsequent purposes as if it had never occurred and the Master Servicer may make
such adjustments to interest or principal  distributions on the Certificates and
to the principal balances of the Certificates as the Master Servicer in its good
faith judgment and sole  discretion  deems  necessary or desirable to effectuate
the  reversal  of the  Realized  Loss  and the  treatment  of such  amount  as a
repurchase or as an Unscheduled  Principal Receipt, as the case may be; provided
that such actions do not result in the aggregate  distributions  made in respect
of each Class of Certificates  whose principal  balances were previously reduced
as a result of such Realized Loss being less than such Class would have received
if such Recovery had been  deposited in the  Certificate  Account on or prior to
the Business Day  preceding  the  Distribution  Date  following  the  Applicable
Unscheduled  Principal  Receipt  Period  in which  the  Mortgage  Loan  became a
Liquidated Loan.

     (e) The interest  portion of Excess  Special  Hazard  Losses,  Excess Fraud
Losses and Excess  Bankruptcy  Losses shall be allocated between (i) the Class A
Certificates  and (ii) the Class B  Certificates,  pro rata based on the Class A
Interest  Accrual Amount and the Class B Interest Accrual Amount for the related
Distribution  Date,  without regard to any reduction  pursuant to this sentence.
Any such loss allocated to the Class A Certificates shall be allocated among the
outstanding  Classes  of Class A  Certificates  based on their  Class A Interest
Percentages.  Any  such  loss  allocated  to the  Class B  Certificates  will be
allocated among the outstanding  Classes of Class B Certificates  based on their
Class B Interest Percentages.  In addition,  after the Class B Principal Balance
has been reduced to zero,  the interest  portion of Realized  Losses (other than
Excess Special Hazard Losses,  Excess Fraud Losses and Excess Bankruptcy Losses)
will be allocated among the outstanding Classes of Class A Certificates based on
their Class A Interest Percentages.

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

Section 4.03.     Paying Agent.

     (a) The Master Servicer hereby appoints the 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;
                  Reports to the Trustee and the Seller.

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

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

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

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

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

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

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

                 (vii) the Class A Principal  Balance,  the Principal Balance of
         each Class of Class A Certificates,  the Class B Principal  Balance and
         the Principal  Balance of each Class of Class B Certificates  as of the
         following  Determination  Date after giving effect to the distributions
         of principal  made, and the principal  portion of Realized  Losses,  if
         any, allocated with respect to such Distribution Date;

                (viii) the Adjusted  Pool Amount,  the Adjusted  Pool Amount (PO
         Portion),  the Pool Scheduled  Principal  Balance of the Mortgage Loans
         for  such  Distribution  Date  and the  aggregate  Scheduled  Principal
         Balance of the Discount Mortgage Loans for such Distribution Date;

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

                   (x) the Class A  Percentage  for the  following  Distribution
         Date (without giving effect to Unscheduled  Principal Receipts received
         after the  Applicable  Unscheduled  Principal  Receipt  Period  for the
         current  Distribution  Date which are applied by a Servicer during such
         Applicable Unscheduled Principal Receipt Period);

                  (xi)  the  Class A  Prepayment  Percentage  for the  following
         Distribution  Date  (without  giving  effect to  Unscheduled  Principal
         Receipts  received after the Applicable  Unscheduled  Principal Receipt
         Period  for the  current  Distribution  Date  which  are  applied  by a
         Servicer during such Applicable Unscheduled Principal Receipt Period);

                 (xii) the Class B-1, Class B-2, Class B-3, Class B-4, Class B-5
         and Class B-6 Percentages for the following  Distribution Date (without
         giving effect to  Unscheduled  Principal  Receipts  received  after the
         Applicable   Unscheduled  Principal  Receipt  Period  for  the  current
         Distribution   Date  which  are  applied  by  a  Servicer  during  such
         Applicable Unscheduled Principal Receipt Period);

                (xiii) the Class B-1, Class B-2, Class B-3, Class B-4, Class B-5
         and Class B-6  Prepayment  Percentages  for the following  Distribution
         Date (without giving effect to Unscheduled  Principal Receipts received
         after the  Applicable  Unscheduled  Principal  Receipt  Period  for the
         current  Distribution  Date which are applied by a Servicer during such
         Applicable Unscheduled Principal Receipt Period);

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

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

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

                (xvii) the amount of the remaining  Special  Hazard Loss Amount,
         Fraud  Loss  Amount  and  Bankruptcy  Loss  Amount  as of the  close of
         business on such Distribution Date;

               (xviii) the  principal and interest  portions of Realized  Losses
         allocated as of such  Distribution Date and the amount of such Realized
         Losses constituting  Excess Special Hazard Losses,  Excess Fraud Losses
         or Excess Bankruptcy Losses;

                 (xix) the aggregate  amount of Bankruptcy  Losses  allocated to
         each Class of Class B Certificates  in accordance  with Section 4.02(a)
         since the Relevant Anniversary;

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

                 (xxi) the unpaid  principal  balance of any Mortgage Loan as to
         which  the  Servicer  of  such  Mortgage  Loan  has  determined  not to
         foreclose  because it believes  the related  Mortgaged  Property may be
         contaminated   with  or  affected  by  hazardous  wastes  or  hazardous
         substances;

                (xxii) the  amount of the  aggregate  Servicing  Fees and Master
         Servicing Fees paid (and not  previously  reported) with respect to the
         related  Distribution  Date  and the  amount  by  which  the  aggregate
         Available  Master  Servicer   Compensation  has  been  reduced  by  the
         Prepayment Interest Shortfall for the related Distribution Date;

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

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

and shall  deliver a copy of each type of statement  to the  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 Class of Class A
Certificates  pursuant to clauses (i) and (ii) above and with respect to a Class
of Class B  Certificates  pursuant to clauses (iii) and (iv) above,  the amounts
shall be expressed as a dollar amount per Class A or Class B Certificate  (other
than the  Class A-R  Certificate)  with a $1,000  Denomination,  and as a dollar
amount per Class A-R Certificate with a $100 Denomination.

     Within a reasonable period of time after the end of each calendar year, the
Master Servicer shall furnish or cause to be furnished to each Person who at any
time  during the  calendar  year was the  Holder of a  Certificate  a  statement
containing  the  information  set forth in clauses (i) and (ii)(a)  above in the
case of a Class A  Certificateholder  and the  information  set forth in clauses
(iii) and (iv)(a)  above in the case of a Class B  Certificateholder  aggregated
for such calendar year or applicable  portion  thereof  during which such Person
was a Certificateholder.  Such obligation of the Master Servicer shall be deemed
to have been satisfied to the extent that substantially  comparable  information
shall be provided by the Master  Servicer  pursuant to any  requirements  of the
Code from time to time in force.

     Prior to the close of business on the third  Business  Day  preceding  each
Distribution Date, the Master Servicer shall furnish a statement to the 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  Distribution  Amount  with  respect to each Class of
Class A Certificates  and the Class B  Distribution  Amount with respect to each
Class of Class B Certificates.  The determination by the Master Servicer of such
amounts shall,  in the absence of obvious error, be  presumptively  deemed to be
correct for all purposes hereunder and the Trustee and the Paying Agent shall be
protected  in  relying  upon  the  same   without  any   independent   check  or
verification.

     In addition to the reports  required  pursuant to this  Section  4.04,  the
Master  Servicer  shall make  available  upon  request  to each  Holder and each
proposed  transferee  of a  Class  A-PO,  Class  B-4,  Class  B-5 or  Class  B-6
Certificate  such additional  information,  if any, as may be required to permit
the proposed transfer to be effected pursuant to Rule 144A.

Section 4.05.     Reports to Mortgagors and the Internal Revenue Service.

     The Master  Servicer  shall, in each year beginning after the Cut-Off Date,
make the reports of foreclosures and  abandonments of any Mortgaged  Property as
required by Code Section 6050J. In order to facilitate  this reporting  process,
the Master Servicer shall request that each Servicer,  on or before January 15th
of each year, shall provide to the Internal Revenue Service,  with copies to the
Master Servicer, reports relating to each instance occurring during the previous
calendar  year in which such  Servicer (i) on behalf of the Trustee  acquires an
interest  in a  Mortgaged  Property  through  foreclosure  or  other  comparable
conversion in full or partial  satisfaction  of a Mortgage Loan serviced by such
Servicer, or (ii) knows or has reason to know that a Mortgaged Property has been
abandoned.  Reports from the Servicers shall be in form and substance sufficient
to meet the reporting  requirements  imposed by Code Section 6050J. In addition,
each Servicer shall provide the Master Servicer with  sufficient  information to
allow the Master  Servicer  to, for each year  ending  after the  Cut-Off  Date,
provide,  or cause to be  provided,  to the  Internal  Revenue  Service  and the
Mortgagors such  information as is required under Code Sections 6050H (regarding
payment of interest) and 6050P (regarding cancellation of indebtedness).

     Section 4.06. Calculation of Amounts; Binding Effect of Interpretations and
Actions of Master Servicer.

     The Master Servicer will compute the amount of all distributions to be made
on the Certificates and all losses to be allocated to the  Certificates.  In the
event that the Master  Servicer  concludes  that any  ambiguity  or  uncertainty
exists in any provisions of this Agreement  relating to distributions to be made
on the  Certificates  or the  allocation  of  losses  to the  Certificates,  the
interpretation  of such  provisions and any actions taken by the Master Servicer
in  good  faith  to  implement  such   interpretation   shall  be  binding  upon
Certificateholders.


<PAGE>


ARTICLE V

THE CERTIFICATES

Section 5.01.     The Certificates.

     (a) The Class A and Class B  Certificates  shall be issued  only in minimum
Denominations of a Single Certificate and, except for the Class A-R Certificate,
integral  multiples of $1,000 in excess thereof (except,  if necessary,  for one
Certificate of each Class (other than the Class A-R Certificate)  that evidences
one Single Certificate plus such additional  principal portion as is required in
order  for all  Certificates  of such  Class to  equal  the  aggregate  Original
Principal Balance of such Class, as the case may be), and shall be substantially
in the  respective  forms set forth as Exhibits A-1,  A-2, A-3, A-4, A-5,  A-PO,
A-R, B-1, B-2, B-3, B-4, B-5, B-6 and C (reverse side of  Certificates)  hereto.
On original  issue the  Certificates  shall be  executed  and  delivered  by the
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 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 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.

     At the option of the Certificateholders,  Certificates may be exchanged for
other  Certificates of authorized  Denominations  of a like aggregate  principal
portion or  Percentage  Interest  and of the same Class  upon  surrender  of the
Certificates  to be  exchanged  at any  such  office  or  agency.  Whenever  any
Certificates  are so surrendered  for exchange,  the 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-PO,  Class  B-4,  Class  B-5 or  Class  B-6
Certificate shall be made unless the registration requirements of the Securities
Act of 1933, as amended,  and any applicable  State securities laws are complied
with, or such transfer is exempt from the registration  requirements  under said
Act and laws.  In the event that a transfer  is to be made in  reliance  upon an
exemption from said Act or laws, (i) unless such transfer is made in reliance on
Rule 144A,  the 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-PO, Class B-4,
Class B-5 or Class B-6 Certificateholder to deliver a written Opinion of Counsel
acceptable  to and in form and  substance  satisfactory  to the  Trustee and the
Seller,  to the effect that such  transfer may be made pursuant to an exemption,
describing the applicable  exemption and the basis  therefor,  from said Act and
laws or is being made  pursuant to said Act and laws,  which  Opinion of Counsel
shall not be an expense of the Trustee,  the Seller or the Master Servicer,  and
(ii) the Trustee  shall require the  transferee  (other than an affiliate of the
Seller on the  Closing  Date) to  execute  an  investment  letter in the form of
Exhibit J hereto  certifying to the Seller and the Trustee the facts surrounding
such transfer,  which investment  letter shall not be an expense of the Trustee,
the Seller or the Master Servicer.  The Holder of a Class A-PO, Class B-4, Class
B-5 or Class B-6 Certificate  desiring to effect such transfer  shall,  and does
hereby agree to, indemnify the 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-PO,  Class  B-4,  Class B-5 or Class B-6
Certificates under said Act or any other securities law.

     (c) No transfer of a Class A-PO or Class B Certificate shall be made (other
than the transfer of the Class A-PO  Certificates  to an affiliate of the Seller
on the Closing Date) unless the Trustee shall have received (i) a representation
letter  from the  transferee  in the form of Exhibit J hereto,  in the case of a
Class A-PO,  Class B-4,  Class B-5 or Class B-6  Certificate,  or in the form of
Exhibit  K  hereto,  in  the  case  of a  Class  B-1,  Class  B-2 or  Class  B-3
Certificate,  to the effect that either (a) such  transferee  is not an employee
benefit plan or other retirement arrangement subject to Title I of ERISA or Code
Section  4975,  or a  governmental  plan,  as defined in Section 3(32) of ERISA,
subject  to any  federal,  state  or local  law  ("Similar  Law")  which is to a
material  extent  similar  to the  foregoing  provisions  of  ERISA  or the Code
(collectively,  a "Plan")  and is not a person  acting on behalf of or using the
assets of any such Plan, which representation  letter shall not be an expense of
the Trustee,  the Seller or the Master Servicer or (b) with respect to the Class
B Certificates only, if such transferee is an insurance company,  (A) the source
of funds used to  purchase  the Class B  Certificate  is an  "insurance  company
general  account"  (as  such  term is  defined  in  Section  V(e) of  Prohibited
Transaction  Class Exemption  95-60 ("PTE 95-60"),  60 Fed. Reg. 35925 (July 12,
1995)),  (B) there is no Plan with  respect to which the amount of such  general
account's  reserves and liabilities for the contract(s)  held by or on behalf of
such Plan and all other Plans  maintained  by the same  employer  (or  affiliate
thereof  as defined  in  Section  V(a)(1) of PTE 95-60) or by the same  employee
organization  exceeds 10% of the total of all reserves and  liabilities  of such
general account (as such amounts are determined under Section I(a) of PTE 95-60)
at the date of  acquisition  and (C) the  purchase  and  holding of such Class B
Certificates  are covered by Sections I and III of PTE 95-60 or (ii) in the case
of any such Class A-PO or Class B Certificate  presented for registration in the
name of a Plan,  or a  trustee  of any such  Plan,  (A) an  Opinion  of  Counsel
satisfactory  to the Trustee  and the Seller to the effect that the  purchase or
holding of such Class A-PO or Class B Certificate  will not result in the assets
of the  Trust  Estate  being  deemed  to be "plan  assets"  and  subject  to the
prohibited transaction provisions of ERISA, the Code or Similar Law and will not
subject the  Trustee,  the Seller or the Master  Servicer to any  obligation  in
addition to those  undertaken in this Agreement,  which Opinion of Counsel shall
not be an expense of the Trustee, the Seller or the Master Servicer and (B) such
other opinions of counsel,  officer's  certificates and agreements as the Seller
or the Master  Servicer  may require in  connection  with such  transfer,  which
opinions of  counsel,  officers'  certificates  and  agreements  shall not be an
expense of the Trustee,  the Seller or the Master  Servicer.  The Class A-PO and
Class B Certificates shall bear a legend referring to the foregoing restrictions
contained in this paragraph.

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

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

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

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

     If (i) any  mutilated  Certificate  is  surrendered  to the  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.  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 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 Class 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.

Section 6.07.     Indemnification of Trustee and Seller by Master Servicer.

     The Master  Servicer shall  indemnify and hold harmless the Trustee and the
Seller and any director, officer or agent thereof against any loss, liability or
expense,  including  reasonable  attorney's fees,  arising out of, in connection
with or incurred by reason of willful  misfeasance,  bad faith or  negligence in
the  performance  of duties of the Master  Servicer  under this  Agreement or by
reason of reckless disregard of its obligations and duties under this Agreement.
Any payment  pursuant to this Section made by the Master Servicer to the Trustee
or the  Seller  shall be from such  entity's  own funds,  without  reimbursement
therefor.  The provisions of this Section 6.07 shall survive the  termination of
this Agreement.


<PAGE>


ARTICLE VII

DEFAULT

Section 7.01.     Events of Default.

     In case  one or more of the  following  Events  of  Default  by the  Master
Servicer shall occur and be continuing, that is to say:

                   (i) any failure by the Master Servicer (a) to remit any funds
         to the Paying Agent as required by Section 4.03 or (b) to distribute or
         cause to be distributed to  Certificateholders  any payment required to
         be made by the Master Servicer under the terms of this Agreement which,
         in either case,  continues  unremedied  for a period of three  business
         days  after  the  date  upon  which  written  notice  of such  failure,
         requiring the same to be remedied,  shall have been given to the Master
         Servicer  by the Trustee or to the Master  Servicer  and the Trustee by
         the holders of  Certificates  evidencing in the aggregate not less than
         25% of the aggregate Voting Interest  represented by all  Certificates;
         or

                  (ii) any  failure on the part of the Master  Servicer  duly to
         observe or perform in any material  respect any other of the  covenants
         or agreements on the part of the Master Servicer in the Certificates or
         in this Agreement  which  continues  unremedied for a period of 60 days
         after the date on which written  notice of such failure,  requiring the
         same to be  remedied,  shall have been given to the Master  Servicer by
         the Trustee,  or to the Master  Servicer and the Trustee by the holders
         of  Certificates  evidencing  in the aggregate not less than 25% of the
         aggregate Voting Interest represented by all Certificates; or

                 (iii) a decree  or order of a court or  agency  or  supervisory
         authority having  jurisdiction in the premises for the appointment of a
         trustee,  conservator,   receiver  or  liquidator  in  any  bankruptcy,
         insolvency,  readjustment of debt, marshaling of assets and liabilities
         or similar  proceedings,  or for the  winding-up or  liquidation of its
         affairs,  shall have been entered  against the Master Servicer and such
         decree or order shall have remained in force  undischarged and unstayed
         for a period of 60 days; or

                  (iv) the Master Servicer shall consent to the appointment of a
         trustee,  conservator,  receiver or liquidator or liquidating committee
         in any  bankruptcy,  insolvency,  readjustment  of debt,  marshaling of
         assets and liabilities, voluntary liquidation or similar proceedings of
         or  relating  to  the  Master  Servicer,  or of or  relating  to all or
         substantially all of its property; or

                   (v) the Master  Servicer shall admit in writing its inability
         to pay its debts  generally as they become due, file a petition to take
         advantage of any applicable  insolvency,  bankruptcy or  reorganization
         statute,  make  an  assignment  for the  benefit  of its  creditors  or
         voluntarily suspend payment of its obligations;

                  (vi) the Master Servicer shall be dissolved,  or shall dispose
         of all or substantially all of its assets; or consolidate with or merge
         into another  entity or shall permit  another  entity to consolidate or
         merge  into  it,  such  that  the  resulting  entity  does not meet the
         criteria for a successor servicer, as specified in Section 6.02 hereof;
         or

                 (vii) the Master Servicer and any  subservicer  appointed by it
         becomes   ineligible  to  service  for  both  FNMA  and  FHMLC,   which
         ineligibility continues unremedied for a period of 90 days.

then, and in each and every such case,  subject to applicable law, so long as an
Event of Default shall not have been remedied, either the Trustee or the holders
of  Certificates  evidencing  in the  aggregate  not  less  than  66 2/3% of the
aggregate Voting Interest represented by all Certificates,  by notice in writing
to the Master  Servicer (and to the Trustee if given by the  Certificateholders)
may terminate all of the rights and  obligations  of the Master  Servicer  under
this Agreement and in and to the Mortgage  Loans,  but without  prejudice to any
rights which the Master Servicer may have to the aggregate Master Servicing Fees
due prior to the date of  transfer  of the  Master  Servicer's  responsibilities
hereunder,  reimbursement of expenses to the extent permitted by this Agreement,
Periodic  Advances  and other  advances  of its own funds.  Upon  receipt by the
Master  Servicer of such written  notice,  all authority and power of the Master
Servicer under this Agreement,  whether with respect to the  Certificates or the
Mortgage Loans or otherwise, shall pass to and be vested in the Trustee pursuant
to and under this  Section,  subject to the  provisions  of Section  7.05;  and,
without  limitation,  the Trustee is hereby  authorized and empowered to execute
and deliver, on behalf of the Master Servicer, as attorney-in-fact or otherwise,
any and all documents and other  instruments,  and to do or accomplish all other
acts or things necessary or appropriate to effect the purposes of such notice of
termination,  whether to complete the transfer and  endorsement or assignment of
the Mortgage  Loans and related  documents  or  otherwise.  The Master  Servicer
agrees to cooperate with the Trustee in effecting the  termination of the Master
Servicer's  responsibilities and rights hereunder and shall promptly provide the
Trustee all  documents  and records  reasonably  requested by it to enable it to
assume  the  Master  Servicer's  functions  hereunder  and shall  promptly  also
transfer to the  Trustee  all  amounts  which then have been or should have been
deposited  in the  Certificate  Account  by the  Master  Servicer  or which  are
thereafter received by the Master Servicer with respect to the Mortgage Loans.

Section 7.02.     Other Remedies of Trustee.

     During the  continuance  of any Event of Default,  so long as such Event of
Default  shall not have been  remedied,  the Trustee,  in addition to the rights
specified in Section 7.01,  shall have the right,  in its own name as trustee of
an express  trust,  to take all  actions  now or  hereafter  existing at law, in
equity or by statute to enforce  its  rights  and  remedies  and to protect  the
interests,  and  enforce  the rights  and  remedies,  of the  Certificateholders
(including the institution and prosecution of all judicial,  administrative  and
other  proceedings  and the  filing of  proofs  of claim and debt in  connection
therewith).  Except as otherwise expressly provided in this Agreement, no remedy
provided for by this Agreement shall be exclusive of any other remedy,  and each
and every remedy shall be cumulative  and in addition to any other remedy and no
delay or omission to exercise any right or remedy shall impair any such right or
remedy or shall be deemed to be a waiver of any Event of Default.

Section 7.03.     Directions by Certificateholders and
                  Duties of Trustee During Event of Default.

     During the  continuance  of any Event of Default,  Holders of  Certificates
evidencing in the aggregate not less than 25% of the aggregate  Voting  Interest
represented  by all  Certificates  may  direct  the  time,  method  and place of
conducting any proceeding for any remedy available to the Trustee, or exercising
any trust or power conferred upon the Trustee,  under this Agreement;  provided,
however,  that the  Trustee  shall be under no  obligation  to  pursue  any such
remedy,  or to  exercise  any of the  rights  or  powers  vested  in it by  this
agreement (including, without limitation, (i) the conducting or defending of any
administrative action or litigation hereunder or in relation hereto and (ii) the
terminating  of the Master  Servicer  from its  rights  and  duties as  servicer
hereunder) at the request, order or direction of any of the  Certificateholders,
unless such  Certificateholders  shall have  offered to the  Trustee  reasonable
security or indemnity  against the cost,  expenses and liabilities  which may be
incurred  therein  or  thereby  and,  provided  further,  that,  subject  to the
provisions  of  Section  8.01,  the  Trustee  shall have the right to decline to
follow any such  direction  if the  Trustee,  in  accordance  with an Opinion of
Counsel,  determines  that the action or proceeding so directed may not lawfully
be  taken  or if the  Trustee  in good  faith  determines  that  the  action  or
proceeding  so directed  would  involve it in personal  liability or be unjustly
prejudicial to the nonassenting Certificateholders.

Section 7.04.     Action upon Certain Failures of the
                  Master Servicer and upon Event of Default.

     In the event that the Trustee  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 Master Servicer or
the Servicers pursuant to Articles III, IV and IX.

     No  provision of this  Agreement  shall be construed to relieve the Trustee
from liability for its own negligent action, its own negligent failure to act or
its own willful misconduct; provided, however, that:

                   (i) Prior to the  occurrence of an Event of Default and after
         the curing of all such Events of Default which may have  occurred,  the
         duties and obligations of the Trustee shall be determined solely by the
         express  provisions of this Agreement,  the Trustee shall not be liable
         except  for the  performance  of such  duties  and  obligations  as are
         specifically  set forth in this  Agreement,  no  implied  covenants  or
         obligations  shall be read into this Agreement against the Trustee and,
         in the absence of bad faith on the part of the Trustee, the Trustee may
         conclusively   rely,  as  to  the  truth  of  the  statements  and  the
         correctness of the opinions expressed therein, upon any certificates or
         opinions furnished to the Trustee and conforming to the requirements of
         this Agreement;

                  (ii) The Trustee shall not be  personally  liable with respect
         to any  action  taken,  suffered  or  omitted to be taken by it in good
         faith in accordance with the direction of holders of Certificates which
         evidence  in the  aggregate  not less than 25% of the  Voting  Interest
         represented by all Certificates  relating to the time, method and place
         of conducting any  proceeding for any remedy  available to the Trustee,
         or exercising any trust or power  conferred upon the Trustee under this
         Agreement; and

                 (iii) The Trustee shall not be liable for any error of judgment
         made in good faith by any of its Responsible Officers,  unless it shall
         be proved that the Trustee or such Responsible Officer, as the case may
         be, was negligent in ascertaining the pertinent facts.

     None of the  provisions  contained  in this  Agreement  shall  require  the
Trustee to expend or risk its own funds or otherwise  incur  personal  financial
liability in the  performance of any of its duties  hereunder or in the exercise
of any of its rights or powers if there is reasonable  ground for believing that
repayment of such funds or adequate  indemnity against such risk or liability is
not reasonably assured to it.

Section 8.02.     Certain Matters Affecting the Trustee.

     Except as otherwise provided in Section 8.01:

                   (i) The Trustee  may request and rely and shall be  protected
         in acting or  refraining  from  acting upon any  resolution,  Officers'
         Certificate,   certificate  of  auditors  or  any  other   certificate,
         statement,  instrument,  opinion,  report,  notice,  request,  consent,
         order, appraisal,  bond or other paper or document believed by it to be
         genuine and to have been  signed or  presented  by the proper  party or
         parties  and the  manner  of  obtaining  consents  and  evidencing  the
         authorization  of the  execution  thereof  shall  be  subject  to  such
         reasonable regulations as the Trustee may prescribe;

                  (ii) The  Trustee may consult  with  counsel,  and any written
         advice of such  counsel or any  Opinion  of  Counsel  shall be full and
         complete authorization and protection in respect of any action taken or
         suffered  or omitted by it  hereunder  in good faith and in  accordance
         with such advice or 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;

                  (iv)  Subject  to  Section  7.04,  the  Trustee  shall  not be
         accountable,  shall have no liability and makes no representation as to
         any acts or omissions  hereunder of the Master Servicer until such time
         as the Trustee may be  required to act as Master  Servicer  pursuant to
         Section  7.05  and  thereupon  only for the  acts or  omissions  of the
         Trustee as successor Master Servicer; and

                   (v) 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 and may transact  banking and/or trust
business with the Seller, the Master Servicer or their Affiliates.

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

     The Master Servicer covenants and agrees to pay to the Trustee from time to
time,  and the Trustee  shall be entitled  to receive,  reasonable  compensation
(which  shall  not  be  limited  by  any  provision  of  law  in  regard  to the
compensation  of a trustee of an express trust) for all services  rendered by it
in  the  execution  of the  trusts  hereby  created  and  in  the  exercise  and
performance  of any of the powers and duties  hereunder  of the  Trustee and the
Master  Servicer  will pay or  reimburse  the  Trustee  upon its request for all
reasonable  expenses,  disbursements  and  advances  incurred  or  made by it in
accordance  with  any  of  the  provisions  of  this  Agreement  (including  the
reasonable compensation and the expenses and disbursements of its counsel and of
all persons not regularly in its employ) except any such expense,  disbursement,
or advance as may arise from its negligence or bad faith.

Section 8.07.     Eligibility Requirements.

     The  Trustee  hereunder  shall  at  all  times  (i)  be  a  corporation  or
association  having its principal  office in a state and city  acceptable to the
Seller,  organized and doing business under the laws of such state or the United
States of  America,  authorized  under  such laws to  exercise  corporate  trust
powers, having a combined capital and surplus of at least $50,000,000,  or shall
be a member of a bank holding system, the aggregate combined capital and surplus
of which is at least $50,000,000, provided that its separate capital and surplus
shall at all times be at least the amount specified in Section  310(a)(2) of the
Trust  Indenture Act of 1939,  (ii) be subject to  supervision or examination by
federal  or state  authority  and (iii)  have a credit  rating  or be  otherwise
acceptable to the Rating Agencies such that neither of the Rating Agencies would
reduce  their  respective  then  current  ratings of the  Certificates  (or have
provided  such  security  from  time to  time as is  sufficient  to  avoid  such
reduction) as evidenced in writing by each Rating Agency. If such corporation or
association publishes reports of condition at least annually, pursuant to law or
to the requirements of the aforesaid  supervising or examining  authority,  then
for the  purposes  of this  Section  the  combined  capital  and surplus of such
corporation  or  association  shall be deemed  to be its  combined  capital  and
surplus as set forth in its most recent  report of  condition so  published.  In
case at any time the Trustee shall cease to be eligible in  accordance  with the
provisions of this Section,  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 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  the REMIC to federal,  state or local tax or cause the REMIC to not
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 a REMIC;
or (ii) cause the imposition of any federal,  state or local income,  prohibited
transaction,  contribution or other tax on either the REMIC or the Trust Estate.
The  Master  Servicer,  or,  in the  case of any  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  using a
calendar  year as the  taxable  year for the  REMIC  and the  accrual  method of
accounting;  (ii) in the first such  federal  tax return,  make,  or cause to be
made, elections  satisfying the requirements of the REMIC Provisions,  on behalf
of the  Trust  Estate,  to treat the Trust  Estate  as a REMIC;  (iii)  prepare,
execute and forward,  or cause to be prepared,  executed and  forwarded,  to the
Certificateholders  all information reports or tax returns required with respect
to the REMIC, as and when required to be provided to the Certificateholders, and
to the  Internal  Revenue  Service and any other  relevant  governmental  taxing
authority  in  accordance  with the REMIC  Provisions  and any other  applicable
federal,  state or local laws, including without limitation  information reports
relating to "original  issue  discount" and "market  discount" as defined in the
Code based upon the issue prices,  prepayment assumption and cash flows provided
by the Seller to the  Trustee  and  calculated  on a monthly  basis by using the
issue prices of the Certificates;  (iv) make available information necessary for
the  application  of any tax imposed on  transferors  of residual  interests  to
"disqualified  organizations"  (as  defined in the REMIC  Provisions);  (v) file
Forms SS-4 and 8811 and  respond to  inquiries  by  Certificateholders  or their
nominees concerning  information returns,  reports or tax returns; (vi) maintain
(or cause to be maintained by the Servicers) such records relating to the REMIC,
including but not limited to the income,  expenses,  individual  Mortgage  Loans
(including REO Mortgage Loans,  other assets and  liabilities of the REMIC,  and
the fair market value and adjusted  basis of the REMIC  property  determined  at
such  intervals  as may be required by the Code,  as may be necessary to prepare
the foregoing returns or information reports; (vii) exercise reasonable care not
to allow the creation of any "interests" in the REMIC within the meaning of Code
Section 860D(a)(2) other than the interests  represented by the Class A-1, Class
A-2, Class A-3, Class A-4, Class A-5, Class A-PO and Class A-R  Certificates and
the  Class  B-l,  Class  B-2,  Class  B-3,  Class  B-4,  Class B-5 and Class B-6
Certificates; (viii) exercise reasonable care not to allow the occurrence of any
"prohibited transactions" within the meaning of Code Section 860F(a), unless the
Master  Servicer  shall have  provided an Opinion of Counsel to the Trustee that
such  occurrence  would not (a) result in a taxable gain, (b) otherwise  subject
either  the Trust  Estate  or the REMIC to tax or (c) cause the Trust  Estate to
fail to qualify as a REMIC; (ix) exercise reasonable care not to allow the REMIC
to receive income from the  performance of services or from assets not permitted
under  the REMIC  Provisions  to be held by a REMIC;  (x) pay (on  behalf of the
REMIC) the amount of any federal  income  tax,  including,  without  limitation,
prohibited transaction taxes, taxes on net income from foreclosure property, and
taxes on certain  contributions to a REMIC after the Startup Day, imposed on the
REMIC when and as the same shall be due and payable (but such  obligation  shall
not prevent the Master Servicer or any other appropriate  Person from contesting
any such tax in  appropriate  proceedings  and  shall  not  prevent  the  Master
Servicer from  withholding  or  depositing  payment of such tax, if permitted by
law, pending the outcome of such proceedings); and (xi) if required or permitted
by the Code and applicable law, act as "tax matters person" for the REMIC within
the meaning of Treasury Regulations Section 1.860F-4(d), and the Master Servicer
is  hereby  designated  as agent of the  Class  A-R  Certificateholder  for such
purpose (or if the Master Servicer is not so permitted,  the Holder of the Class
A-R  Certificate  shall be tax  matters  person  in  accordance  with the  REMIC
Provisions).  The Master Servicer shall be entitled to be reimbursed pursuant to
Section  3.02 for any taxes paid by it pursuant  to clause (x) of the  preceding
sentence,  except to the extent  that such taxes are  imposed as a result of the
bad faith, willful misfeasance or gross negligence of the Master Servicer in the
performance of its obligations hereunder. The Trustee 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 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 and
the  Trustee  for any losses,  liabilities,  damages,  claims or expenses of the
Master Servicer or the Trustee arising from any errors or miscalculations by the
Master  Servicer or the Trustee  pursuant to this  Section  that result from any
failure  of  the  Seller  to  provide,  or to  cause  to be  provided,  accurate
information or data to the Master  Servicer or the Trustee,  as the case may be,
on a timely basis.  The Master  Servicer  hereby  indemnifies the Seller and the
Trustee for any losses,  liabilities,  damages, claims or expenses of the Seller
or the Trustee arising from the Master Servicer's willful misfeasance, bad faith
or gross negligence in preparing any of the federal, state and local tax returns
of the REMIC as described  above. In the event that the Trustee  prepares any of
the federal,  state and local tax returns of the REMIC as described  above,  the
Trustee hereby  indemnifies  the Seller and the Master  Servicer for any losses,
liabilities,  damages,  claims or expenses of the Seller 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 11.22. 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 Classes of Class A Certificates,  the respective  Principal Balance together
with any related Class A Unpaid Interest  Shortfall and one month's  interest in
an  amount  equal to the  respective  Interest  Accrual  Amount,  (ii) as to the
Classes of Class B Certificates,  the respective Principal Balance together with
any related Class B Unpaid  Interest  Shortfall  and one month's  interest in an
amount equal to the respective Interest Accrual Amount and (iii) as to the Class
A-R Certificate, the amounts, if any, which remain on deposit in the Certificate
Account (other than amounts retained to meet claims) after application  pursuant
to clauses (i),  (ii) and (iii) above and payment to the Master  Servicer of any
amounts it is entitled as reimbursement or otherwise hereunder.  Notwithstanding
the foregoing,  if the price paid pursuant to clause (i) of the first  paragraph
of this Section 9.01, after reimbursement to the Servicers,  the Master Servicer
and the 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 the REMIC to federal tax or cause the Trust Estate to fail to qualify as
a REMIC at any time that any Certificates are outstanding:

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

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

     This Agreement or any Custodial  Agreement may also be amended from time to
time by the Seller,  the Master Servicer and the Trustee with the consent of the
Holders of Certificates evidencing in the aggregate not less than 66-2/3% of the
aggregate  Voting  Interests of each Class of Certificates  affected thereby for
the purpose of adding any provisions to or changing in any manner or eliminating
any of the  provisions  of this  Agreement  or such  Custodial  Agreement  or of
modifying in any manner the rights of the Holders of Certificates of such Class;
provided,  however,  that no such  amendment  shall (i) reduce in any manner the
amount of, or delay the timing of, payments received on Mortgage Loans which are
required to be distributed on any Certificate  without the consent of the Holder
of such Certificate,  (ii) adversely affect in any material respect the interest
of the Holders of  Certificates of any Class in a manner other than as described
in clause (i) hereof  without  the  consent of Holders of  Certificates  of such
Class evidencing,  as to such Class, Voting Interests  aggregating not less than
66-2/3% or (iii) reduce the aforesaid  percentage of  Certificates  of any Class
the Holders of which are required to consent to any such amendment,  without the
consent of the Holders of all Certificates of such Class then outstanding.

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

     Promptly  after the  execution of any  amendment  requiring  the consent of
Certificateholders,  the  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 changing the Applicable  Unscheduled Principal Receipt Period for all
Mortgage  Loans  serviced by any  Servicer to a  Mid-Month  Receipt  Period with
respect to Full  Unscheduled  Principal  Receipts  and to a Prior Month  Receipt
Period with respect to Partial Unscheduled Principal Receipts.

     A copy of any  amendment  to Schedule I pursuant to this  Section  10.01(b)
shall be promptly forwarded to the Trustee.

Section 10.02.    Recordation of Agreement.

     This  Agreement (or an abstract  hereof,  if  acceptable to the  applicable
recording  office) is subject to recordation in all  appropriate  public offices
for real property records in all the towns or other comparable  jurisdictions in
which any or all of the  Mortgaged  Properties  are  situated,  and in any other
appropriate  public office or elsewhere,  such recordation to be effected by the
Master  Servicer and at its expense on  direction by the Trustee,  but only upon
direction  accompanied  by an  Opinion  of  Counsel  to  the  effect  that  such
recordation   materially   and   beneficially   affects  the  interests  of  the
Certificateholders.

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

Section 10.03.    Limitation on Rights of Certificateholders.

     The death or  incapacity  of any  Certificateholder  shall not  operate  to
terminate   this   Agreement   or   the   Trust   Estate,   nor   entitle   such
Certificateholder's  legal  representatives  or heirs to claim an  accounting or
take any action or  proceeding in any court for a partition or winding up of the
Trust Estate,  nor otherwise  affect the rights,  obligations and liabilities of
the parties hereto or any of them.

     Except as otherwise expressly provided herein, no Certificateholder, solely
by virtue of its status as a Certificateholder,  shall have any right to vote or
in any manner  otherwise  control  the  operation  and  management  of the Trust
Estate, or the obligations of the parties hereto,  nor shall anything herein set
forth,  or  contained  in the terms of the  Certificates,  be construed so as to
constitute the Certificateholders from time to time as partners or members of an
association, nor shall any Certificateholder be under any liability to any third
person by reason of any action taken by the parties to this  Agreement  pursuant
to any provision hereof.

     No Certificateholder,  solely by virtue of its status as Certificateholder,
shall have any right by virtue or by availing of any provision of this Agreement
to institute any suit, action or proceeding in equity or at law upon or under or
with respect to this Agreement,  unless such Holder  previously shall have given
to the Trustee a written notice of default and of the  continuance  thereof,  as
hereinbefore  provided,  and unless also the Holders of Certificates  evidencing
not less than 25% of the Voting Interest  represented by all Certificates  shall
have made written  request upon the Trustee to  institute  such action,  suit or
proceeding  in its own name as Trustee  hereunder  and shall have offered to the
Trustee such reasonable  indemnity as it may require against the cost,  expenses
and liabilities to be incurred therein or thereby,  and the Trustee, for 60 days
after its receipt of such  notice,  request and offer of  indemnity,  shall have
neglected or refused to institute any such action, suit or proceeding;  it being
understood   and   intended,    and   being   expressly   covenanted   by   each
Certificateholder  with every other  Certificateholder  and the Trustee, that no
one or more Holders of Certificates  shall have any right in any manner whatever
by virtue or by availing of any provision of this  Agreement to affect,  disturb
or prejudice the rights of the Holders of any other of such Certificates,  or to
obtain or seek to obtain  priority  over or preference to any other such Holder,
or to enforce  any right  under  this  Agreement,  except in the  manner  herein
provided and for the benefit of all  Certificateholders.  For the protection and
enforcement of the provisions of this Section, each and every  Certificateholder
and the Trustee  shall be entitled to such relief as can be given  either at law
or in equity.

Section 10.04.    Governing Law; Jurisdiction.

     This Agreement  shall be construed in accordance with the laws of the State
of  New  York  (without  regard  to  conflicts  of  laws  principles),  and  the
obligations, rights and remedies of the parties hereunder shall be determined in
accordance with such laws.

Section 10.05.    Notices.

     All demands,  notices and communications  hereunder shall be in writing and
shall be deemed to have been duly given if personally  delivered at or mailed by
certified or registered  mail,  return receipt  requested (i) in the case of the
Seller,  to  Norwest  Asset  Securities  Corporation,   7485  New  Horizon  Way,
Frederick,  Maryland 21703,  Attention:  Chief Executive Officer,  or such other
address as may hereafter be furnished to the Master  Servicer and the Trustee in
writing by the Seller, (ii) in the case of the Master Servicer,  to Norwest Bank
Minnesota,  National  Association,  7485 New Horizon  Way,  Frederick,  Maryland
21703,  Attention:  Vice  President  or such other  address as may  hereafter be
furnished  to the Seller and the Trustee in writing by the Master  Servicer  and
(iii) in the case of the Trustee,  to the Corporate Trust Office,  or such other
address as may  hereafter be furnished to the Seller and the Master  Servicer in
writing by the Trustee, in each case Attention:  Corporate Trust Department. Any
notice required or permitted to be mailed to a Certificateholder  shall be given
by first class mail, postage prepaid,  at the address of such Holder as shown in
the  Certificate  Register.  Any notice  mailed or  transmitted  within the time
prescribed in this Agreement  shall be  conclusively  presumed to have been duly
given,  whether or not the addressee  receives such notice,  provided,  however,
that any  demand,  notice or  communication  to or upon the  Seller,  the Master
Servicer 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 the  Servicer  unless  notified
thereof in writing by the Trustee, the 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 6.250% per annum.

Section 11.02.    Cut-Off Date.

     The Cut-Off Date for the Certificates is August 1, 1998.

Section 11.03.    Cut-Off Date Aggregate Principal Balance.

     The Cut-Off Date Aggregate Principal Balance is $250,320,432.51.

Section 11.04.    Original Class A Percentage.

     The Original Class A Percentage is 96.79414822%

     Section  11.05.  Original  Principal  Balances  of the  Classes  of Class A
Certificates.

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

                                                  Original
      Class                                   Principal Balance
      -----                                   -----------------
      Class A-1                               $   90,888,000.00
      Class A-2                               $   62,700,000.00
      Class A-3                               $   60,000,000.00
      Class A-4                               $    1,000,000.00
      Class A-5                               $   27,285,000.00
      Class A-PO                              $      436,421.50
      Class A-R                               $          100.00

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

     The Original Class A Non-PO Principal Balance is $241,873,100.00.

Section 11.07.    Original Subordinated Percentage.

     The Original Subordinated Percentage is 3.20585178%.

Section 11.08.    Original Class B-1 Percentage.

     The Original Class B-1 Percentage is 1.20215775%.

Section 11.09.    Original Class B-2 Percentage.

     The Original Class B-2 Percentage is 1.25218096%.

Section 11.10.    Original Class B-3 Percentage.

     The Original Class B-3 Percentage is 0.25051623%.

Section 11.11.    Original Class B-4 Percentage.

     The Original Class B-4 Percentage is 0.25011604%.

Section 11.12.    Original Class B-5 Percentage.

     The Original Class B-5 Percentage is 0.10004642%.

Section 11.13.    Original Class B-6 Percentage.

     The Original Class B-6 Percentage is 0.15083438%.

Section 11.14.    Original Class B Principal Balance.

     The Original Class B Principal Balance is $8,010,911.01.

     Section  11.15.  Original  Principal  Balances  of the  Classes  of Class B
Certificates.

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

                                                   Original
       Class                                   Principal Balance
       -----                                   -----------------
       Class B-1                               $    3,004,000.00
       Class B-2                               $    3,129,000.00
       Class B-3                               $      626,000.00
       Class B-4                               $      625,000.00
       Class B-5                               $      250,000.00
       Class B-6                               $      376,911.01

Section 11.16.    Original Class B-1 Fractional Interest.

     The Original Class B-1 Fractional Interest is 2.00369402%.

Section 11.17.    Original Class B-2 Fractional Interest.

     The Original Class B-2 Fractional Interest is 0.75151307%.

Section 11.18.    Original Class B-3 Fractional Interest.

     The Original Class B-3 Fractional Interest is 0.50099684%.

Section 11.19.    Original Class B-4 Fractional Interest.

     The Original Class B-4 Fractional Interest is 0.25088080%.

Section 11.20.    Original Class B-5 Fractional Interest.

     The Original Class B-5 Fractional Interest is 0.15083438%.

Section 11.21.    Closing Date.

     The Closing Date is August 27, 1998.

Section 11.22.    Right to Purchase.

     The right of the Seller to purchase all of the Mortgage  Loans  pursuant to
Section  9.01 hereof  shall be  conditioned  upon the Pool  Scheduled  Principal
Balance of the Mortgage Loans being less than $25,032,043.25 (10% of the Cut-Off
Date Aggregate Principal Balance) at the time of any such purchase.

Section 11.23.    Wire Transfer Eligibility.

     With  respect to the Class A  Certificates  (other  than the Class A-PO and
Class A-R Certificates)  and the Class B Certificates  (other than the Class B-5
and Class B-6 Certificates), the minimum Denomination eligible for wire transfer
on  each  Distribution  Date  is  $500,000.  With  respect  to  the  Class  A-PO
Certificates,  the  minimum  denomination  eligible  for wire  transfer  is 100%
Percentage  Interest.  The Class A-R Certificate and the Class B-5 and Class B-6
Certificates are not eligible for wire transfer.

Section 11.24.    Single Certificate.

     A Single Certificate for each Class of Class A Certificates (other than the
Class A-R  Certificate)  and each Class of Class B Certificates  (other than the
Class  B-4,  Class  B-5  and  Class  B-6  Certificates)  represents  a  $100,000
Denomination.  A Single  Certificate for the Class A-R Certificate  represents a
$100  Denomination.   A  Single  Certificate  for  the  Class  B-4  Certificates
represents  a $250,000  Denomination.  The Class B-5 and Class B-6  Certificates
will each be issued as a Single  Certificate  with a  Denomination  equal to its
respective Original Principal Balance.

Section 11.25.    Servicing Fee Rate.

     The rate used to calculate  the  Servicing  Fee is equal to such rate as is
set forth on the Mortgage Loan Schedule with respect to a Mortgage Loan.

Section 11.26.    Master Servicing Fee Rate.

     The rate used to calculate the Master  Servicing Fee for each Mortgage Loan
is 0.017% per annum.


<PAGE>


     IN WITNESS  WHEREOF,  the Seller,  the Master Servicer and the Trustee have
caused their names to be signed hereto by their  respective  officers  thereunto
duly authorized, all as of the day and year first above written.

                                           NORWEST ASSET SECURITIES CORPORATION
                                             as Seller

                                           By:__________________________________
                                              Name:
                                              Title:

                                           NORWEST BANK MINNESOTA, NATIONAL
                                             ASSOCIATION
                                             as Master Servicer

                                           By:__________________________________

                                              Name:
                                              Title:

                                           FIRST UNION NATIONAL BANK
                                               as Trustee

                                           By:__________________________________
                                               Name:
                                               Title:

Attest:
By:_____________________________
Name:___________________________
Title:  ________________________
    


<PAGE>


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

     On this 27th day of August, 1998, before me, a notary public in and for the
State of New York, personally appeared Alan McKenney,  known to me who, being by
me duly sworn, did depose and say that he resides at McLean,  Virginia;  that he
is a  Vice  President  of  Norwest  Asset  Securities  Corporation,  a  Delaware
corporation, one of the parties that executed the foregoing instrument; and that
he  signed  his  name  thereto  by  order  of the  Board  of  Directors  of said
corporation.

_________________________
Notary Public

[NOTARIAL SEAL]


<PAGE>


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

     On this 27th day of August, 1998, before me, a notary public in and for the
State of New York, personally appeared Nancy E. Burgess,  known to me who, being
by me duly sworn,  did depose and say that she resides at  Frederick,  Maryland;
that she is a Vice President of Norwest Bank Minnesota,  National Association, a
national  banking  association,  one of the parties that  executed the foregoing
instrument;  and  that she  signed  her name  thereto  by order of the  Board of
Directors of said corporation.

__________________________
Notary Public

[NOTARIAL SEAL]


<PAGE>


STATE OF NORTH CAROLINA          )
                                       ss.:
COUNTY OF                        )

     On this 27th day of August, 1998, before me, a notary public in and for the
State of North Carolina,  personally appeared  ___________________,  known to me
who,  being  by me  duly  sworn,  did  depose  and  say  that  s/he  resides  at
_________________,  North Carolina; that s/he is a ____________________ of First
Union National  Bank, a national  banking  association,  one of the parties that
executed the foregoing instrument;  and that s/he signed his/her name thereto by
order of the Board of Directors of said corporation.


_________________________
Notary Public

[NOTARIAL SEAL]


<PAGE>


STATE OF NORTH CAROLINA   )
                           ss.:
COUNTY OF                 )

     On this 27th day of August, 1998, before me, a notary public in and for the
State of North Carolina, personally appeared _____________________,  known to me
who,  being  by  me  duly  sworn,   did  depose  and  say  that  he  resides  at
__________________,  North Carolina; that he is a _____________________ of First
Union National  Bank, a national  banking  association,  one of the parties that
executed  the  foregoing  instrument;  and that s/he signed his name  thereto by
order of the Board of Directors of said corporation.

_________________________
Notary Public

[NOTARIAL SEAL]


<PAGE>


                                   SCHEDULE I

    Norwest Asset Securities Corporation, Mortgage Pass-Through Certificates,
         Series 1998-22 Applicable Unscheduled Principal Receipt Period

                                        Full Unscheduled    Partial Unscheduled
   Servicer                            Principal Receipts   Principal Receipts
   --------                            ------------------   ------------------
   Norwest Mortgage, Inc.                   Mid-Month            Mid-Month
   The Huntington Mortgage Company         Prior Month          Prior Month
   Citicorp Mortgage, Inc.                  Mid-Month           Prior Month


<PAGE>


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

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
    DEPOSITORY TRUST COMPANY TO THE 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 1998-22 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, 1998

CUSIP No.:                         First Distribution Date:  September 25, 1998

Percentage Interest evidenced      Denomination: $
by this Certificate:  %

Final Scheduled Maturity Date:  September 25, 2028


<PAGE>


     THIS CERTIFIES THAT  ___________________________ is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of the Class A-1  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1998 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"),  a
summary  of  certain  of  the  pertinent   provisions  of  which  is  set  forth
hereinafter. To the extent not defined herein, the capitalized terms used herein
have the meanings  ascribed to such terms in the Agreement.  This Certificate is
issued  under and is subject  to the terms,  provisions  and  conditions  of the
Agreement,  to which  Agreement the Holder of this  Certificate by virtue of the
acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the  Percentage   Interest  evidenced  by  this  Certificate  and  the  Class  A
Distribution Amount for the Class A-1 Certificates required to be distributed to
Holders of the Class A-1  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-1 Certificates  applicable to each  Distribution Date will be 6.250% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-1 Certificates, as described in the Agreement.

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

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

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

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


<PAGE>


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


Dated:

                                                     First Union National Bank,
                                                         Trustee

                                                     By_________________________
                                                       Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

By ________________________
   Authorized Officer


<PAGE>


                                   EXHIBIT A-2
                     [FORM OF FACE OF CLASS A-2 CERTIFICATE]

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1998-22 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, 1998

CUSIP No.:                          First Distribution Date:  September 25, 1998

Percentage Interest evidenced       Denomination:  $
by this Certificate: %

Final Scheduled Maturity Date:  September 25, 2028


<PAGE>


     THIS CERTIFIES THAT  ___________________________ is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of the Class A-2  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1998 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master Servicer"), and First Union National Bank, as trustee (the "Trustee"), a
summary  of  certain  of  the  pertinent   provisions  of  which  is  set  forth
hereinafter. To the extent not defined herein, the capitalized terms used herein
have the meanings  ascribed to such terms in the Agreement.  This Certificate is
issued  under and is subject  to the terms,  provisions  and  conditions  of the
Agreement,  to which  Agreement the Holder of this  Certificate by virtue of the
acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the  Percentage   Interest  evidenced  by  this  Certificate  and  the  Class  A
Distribution Amount for the Class A-2 Certificates required to be distributed to
Holders of the Class A-2  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-2 Certificates  applicable to each  Distribution Date will be 6.250% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-2 Certificates, as described in the Agreement.

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

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

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

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


<PAGE>


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


Dated:

                                                     First Union National Bank,
                                                        Trustee

                                                     By_________________________
                                                       Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

By ________________________
   Authorized Officer


<PAGE>


                                   EXHIBIT A-3
                     [FORM OF FACE OF CLASS A-3 CERTIFICATE]

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1998-22 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, 1998

CUSIP No.:                          First Distribution Date:  September 25, 1998

Percentage Interest evidenced       Denomination:  $
by this Certificate: %

Final Scheduled Maturity Date:  September 25, 2028


<PAGE>


     THIS CERTIFIES THAT  ___________________________ is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of the Class A-3  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1998 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"),  a
summary  of  certain  of  the  pertinent   provisions  of  which  is  set  forth
hereinafter. To the extent not defined herein, the capitalized terms used herein
have the meanings  ascribed to such terms in the Agreement.  This Certificate is
issued  under and is subject  to the terms,  provisions  and  conditions  of the
Agreement,  to which  Agreement the Holder of this  Certificate by virtue of the
acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the  Percentage   Interest  evidenced  by  this  Certificate  and  the  Class  A
Distribution Amount for the Class A-3 Certificates required to be distributed to
Holders of the Class A-3  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-3 Certificates  applicable to each  Distribution Date will be 6.250% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-3 Certificates, as described in the Agreement.

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

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

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

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


<PAGE>


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


Dated:

                                                     First Union National Bank,
                                                         Trustee

                                                     By_________________________
                                                       Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

By ________________________
   Authorized Officer


<PAGE>


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

             [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 1998-22 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.

     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, 1998

CUSIP No.:                         First Distribution Date:  September 25, 1998

Percentage Interest evidenced      Denomination:  $
by this Certificate: %

Final Scheduled Maturity Date:  September 25, 2028


<PAGE>


     THIS CERTIFIES THAT  ___________________________ is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of the Class A-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, 1998 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"),  a
summary  of  certain  of  the  pertinent   provisions  of  which  is  set  forth
hereinafter. To the extent not defined herein, the capitalized terms used herein
have the meanings  ascribed to such terms in the Agreement.  This Certificate is
issued  under and is subject  to the terms,  provisions  and  conditions  of the
Agreement,  to which  Agreement the Holder of this  Certificate by virtue of the
acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the  Percentage   Interest  evidenced  by  this  Certificate  and  the  Class  A
Distribution Amount for the Class A-4 Certificates required to be distributed to
Holders of the Class A-4  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-4 Certificates  applicable to each  Distribution Date will be 6.250% per
annum.  Prior to the Accretion  Termination Date, no distribution of interest on
this Certificate will be made. Prior to the Accretion Termination Date, interest
otherwise  available for  distribution on this  Certificate will be added to the
Principal Balance of the Class A-4 Certificates on each  Distribution  Date. The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated  to the Class A-4
Certificates, as described in the Agreement.

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

     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,  1998,  at an issue  price of
86.83039%, including accrued interest, and a stated redemption price at maturity
equal to the sum of its initial principal balance and all interest distributions
hereon (whether current or accrued),  and is issued with original issue discount
("OID") for federal income tax purposes.  Assuming that this Certificate pays in
accordance  with  projected cash flows  reflecting the prepayment  assumption of
375% SPA (as defined in the  Prospectus  Supplement  dated  August 20, 1998 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-R, Class B-1, Class B-2 and Class B-3  Certificates)  used to price
this Certificate: (i) the amount of OID as a percentage of the initial principal
balance of this  Certificate  is  approximately  250.62023711%;  (ii) the annual
yield to maturity of this  Certificate,  compounded  monthly,  is  approximately
6.99%;  and (iii) the amount of OID allocable to the short first accrual  period
(August 27, 1998 to September 25, 1998) as a percentage of the initial principal
balance of this Certificate, calculated using the exact method, is approximately
0.47181922%.

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

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


<PAGE>


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


Dated:

                                                     First Union National Bank,
                                                         Trustee

                                                     By_________________________
                                                       Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

By ________________________
   Authorized Officer


<PAGE>


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

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1998-22 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, 1998

CUSIP No.:                          First Distribution Date:  September 25, 1998

Percentage Interest evidenced       Denomination:  $
by this Certificate: %

Final Scheduled Maturity Date:  September 25, 2028


<PAGE>


     THIS CERTIFIES THAT  ___________________________ is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of the Class A-5  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1998 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"),  a
summary  of  certain  of  the  pertinent   provisions  of  which  is  set  forth
hereinafter. To the extent not defined herein, the capitalized terms used herein
have the meanings  ascribed to such terms in the Agreement.  This Certificate is
issued  under and is subject  to the terms,  provisions  and  conditions  of the
Agreement,  to which  Agreement the Holder of this  Certificate by virtue of the
acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the  Percentage   Interest  evidenced  by  this  Certificate  and  the  Class  A
Distribution Amount for the Class A-5 Certificates required to be distributed to
Holders of the Class A-5  Certificates  on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-5 Certificates  applicable to each  Distribution Date will be 6.250% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-5 Certificates, as described in the Agreement.

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

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

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

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


<PAGE>


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


Dated:

                                                     First Union National Bank,
                                                       Trustee

                                                     By_________________________
                                                       Authorized Officer


Countersigned:

First Union National Bank,
  Trustee

By ________________________
   Authorized Officer


<PAGE>


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


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

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


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 1998-22, CLASS A-PO

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

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

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

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

Certificate No.                    Cut-Off Date:   August 1, 1998

CUSIP No.:                         First Distribution Date:  September 25, 1998

Percentage Interest evidenced      Denomination:  $
by this Certificate: %

Final Scheduled Maturity Date:  September 25, 2028


<PAGE>


     THIS CERTIFIES THAT ____________________________ is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the Holders of the Class A-PO  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1998 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"),  a
summary  of  certain  of  the  pertinent   provisions  of  which  is  set  forth
hereinafter. To the extent not defined herein, the capitalized terms used herein
have the meanings  ascribed to such terms in the Agreement.  This Certificate is
issued  under and is subject  to the terms,  provisions  and  conditions  of the
Agreement,  to which  Agreement the Holder of this  Certificate by virtue of the
acceptance hereof assents and by which such Holder is bound.

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

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

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

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

     This  Certificate  is issued  on  August  27,  1998,  at an issue  price of
75.00000%  and a stated  redemption  price  at  maturity  equal  to its  initial
principal  balance,  and is issued  with  original  issue  discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 375% SPA (as
defined in the Prospectus  Supplement  dated August 20, 1998 with respect to the
offering of the Class A-1,  Class A-2,  Class A-3,  Class A-4,  Class A-5, Class
A-R,  Class  B-1,  Class  B-2 and  Class B-3  Certificates)  used to price  this
Certificate:  (i) the amount of OID as a  percentage  of the  initial  principal
balance of this Certificate is approximately 25.00000000%; (ii) the annual yield
to maturity of this Certificate, compounded monthly, is approximately 6.49%; and
(iii) the amount of OID allocable to the short first accrual  period (August 27,
1998 to September 25, 1998) as a percentage of the initial  principal balance of
this   Certificate,   calculated  using  the  exact  method,   is  approximately
0.37880532%.

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

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


<PAGE>


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


Dated:

                                                     First Union National Bank,
                                                       Trustee

                                                     By_________________________
                                                       Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


By ________________________
   Authorized Officer


<PAGE>


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

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

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

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


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1998-22, CLASS A-R


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


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

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

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

Certificate No.                     Cut-Off Date:   August 1, 1998

CUSIP No.:                          First Distribution Date:  September 25, 1998

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

Final Scheduled Maturity Date:  September 25, 2028


<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, 1998 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"),  a
summary  of  certain  of  the  pertinent   provisions  of  which  is  set  forth
hereinafter. To the extent not defined herein, the capitalized terms used herein
have the meanings  ascribed to such terms in the Agreement.  This Certificate is
issued  under and is subject  to the terms,  provisions  and  conditions  of the
Agreement,  to which  Agreement the Holder of this  Certificate by virtue of the
acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the  Percentage   Interest  evidenced  by  this  Certificate  and  the  Class  A
Distribution Amount for the Class A-R Certificate  required to be distributed to
the Holder of the Class A-R Certificate on such  Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the Principal  Balance of certain  Classes of Class A  Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal  will be  allocated  among the Classes of Class A  Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-R Certificate  applicable to each  Distribution  Date will be 6.250% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-R Certificate, as described in the Agreement.

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

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

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

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


Dated:

                                                   First Union National Bank,
                                                     Trustee


                                                   By___________________________
                                                       Authorized Officer

Countersigned:

First Union National Bank,
  Trustee

By________________________
   Authorized Officer


<PAGE>


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


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

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


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1998-22, CLASS B-1

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


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

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER, THE MASTER SERVICER, THE TRUSTEE 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, 1998

CUSIP No.:                         First Distribution Date:  September 25, 1998

Percentage Interest evidenced      Denomination:  $
by this Certificate: %

Final Scheduled Maturity Date:  September 25, 2028


<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, 1998 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"),  a
summary  of  certain  of  the  pertinent   provisions  of  which  is  set  forth
hereinafter. To the extent not defined herein, the capitalized terms used herein
have the meanings  ascribed to such terms in the Agreement.  This Certificate is
issued  under and is subject  to the terms,  provisions  and  conditions  of the
Agreement,  to which  Agreement the Holder of this  Certificate by virtue of the
acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest evidenced by this Certificate and, subject to the prior
rights of the Class A Certificates as specified in the Agreement,  any Class B-1
Distribution  Amount  required  to be  distributed  to  Holders of the Class B-1
Certificates  on such  Distribution  Date,  subject  to  adjustment,  in certain
events,  as specified in the Agreement.  The pass-through  rate on the Class B-1
Certificates  applicable to each Distribution Date will be 6.250% per annum. The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated  to the Class B-1
Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the Principal
Balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency  specified by the 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,  (a) an opinion of counsel  acceptable to and in form and
substance  satisfactory  to the Trustee  and the Seller with  respect to certain
matters and (b) such other  documentation  as the Seller or the Master  Servicer
may require, as described in the Agreement.

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

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

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


<PAGE>


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


Dated:

                                                  First Union National Bank,
                                                    Trustee

                                                  By____________________________
                                                     Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


By ________________________
   Authorized Officer


<PAGE>


                                   EXHIBIT B-2
                     [FORM OF FACE OF CLASS B-2 CERTIFICATE]


THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A CERTIFICATES
AND THE CLASS  B-1  CERTIFICATES  AS  DESCRIBED  IN THE  POOLING  AND  SERVICING
AGREEMENT REFERRED TO HEREIN.

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


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1998-22, 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, 1998

CUSIP No.:                          First Distribution Date:  September 25, 1998

Percentage Interest evidenced       Denomination:  $
by this Certificate: %

Final Scheduled Maturity Date:  September 25, 2028


<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, 1998 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"),  a
summary  of  certain  of  the  pertinent   provisions  of  which  is  set  forth
hereinafter. To the extent not defined herein, the capitalized terms used herein
have the meanings  ascribed to such terms in the Agreement.  This Certificate is
issued  under and is subject  to the terms,  provisions  and  conditions  of the
Agreement,  to which  Agreement the Holder of this  Certificate by virtue of the
acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest evidenced by this Certificate and, subject to the prior
rights  of the  Class A  Certificates  and each  Class  of Class B  Certificates
bearing a lower numerical  designation as specified in the Agreement,  any Class
B-2  Distribution  Amount required to be distributed to Holders of the Class B-2
Certificates  on such  Distribution  Date,  subject  to  adjustment,  in certain
events,  as specified in the Agreement.  The pass-through  rate on the Class B-2
Certificates  applicable to each Distribution Date will be 6.250% per annum. The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated  to the Class B-2
Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the Principal
Balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency  specified by the 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,  (a) an opinion of counsel  acceptable to and in form and
substance  satisfactory  to the Trustee  and the Seller with  respect to certain
matters and (b) such other  documentation  as the Seller or the Master  Servicer
may require, as described in the Agreement.

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

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

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


<PAGE>


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


Dated:

                                                 First Union National Bank,
                                                   Trustee

                                                 By____________________________
                                                       Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


By________________________
   Authorized Officer


<PAGE>


                                   EXHIBIT B-3

                     [FORM OF FACE OF CLASS B-3 CERTIFICATE]

THIS   CERTIFICATE  IS   SUBORDINATED  IN  RIGHT  OF  PAYMENT  TO  THE  CLASS  A
CERTIFICATES,  THE CLASS B-1  CERTIFICATES  AND THE  CLASS B-2  CERTIFICATES  AS
DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

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


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1998-22, 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, 1998

CUSIP No.:                          First Distribution Date:  September 25, 1998

Percentage Interest evidenced       Denomination:  $
by this Certificate: %

Final Scheduled Maturity Date:  September 25, 2028


<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, 1998 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer")  and First Union  National  Bank,  as
trustee (the  "Trustee"),  a summary of certain of the  pertinent  provisions of
which  is  set  forth  hereinafter.  To  the  extent  not  defined  herein,  the
capitalized  terms used herein have the  meanings  ascribed to such terms in the
Agreement.  This  Certificate  is issued  under  and is  subject  to the  terms,
provisions  and conditions of the  Agreement,  to which  Agreement the Holder of
this  Certificate by virtue of the  acceptance  hereof assents and by which such
Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest evidenced by this Certificate and, subject to the prior
rights  of the  Class A  Certificates  and each  Class  of Class B  Certificates
bearing a lower numerical  designation as specified in the Agreement,  any Class
B-3  Distribution  Amount required to be distributed to Holders of the Class B-3
Certificates  on such  Distribution  Date,  subject  to  adjustment,  in certain
events,  as specified in the Agreement.  The pass-through  rate on the Class B-3
Certificates  applicable to each Distribution Date will be 6.250% per annum. The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated  to the Class B-3
Certificates, as described in the Agreement.

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

     No  transfer  of a Class B-3  Certificate  will be made  unless  the Holder
hereof  desiring to make any such  transfer  shall  deliver to the 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,  (a) an opinion of counsel  acceptable to and in form and
substance  satisfactory  to the Trustee  and the Seller with  respect to certain
matters and (b) such other  documentation  as the Seller or the Master  Servicer
may require, as described in the Agreement.

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

     This Certificate is issued on August 27, 1998, and based on its issue price
of 96.66739%,  including  accrued  interest,  and a stated  redemption  price at
maturity equal to its initial  principal balance (plus 2 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 375% SPA (as
defined in the Prospectus  Supplement  dated August 20, 1998 with respect to the
offering of the Class A-1,  Class A-2,  Class A-3,  Class A-4,  Class A-5, Class
A-R,  Class  B-1,  Class  B-2 and  Class B-3  Certificates)  used to price  this
Certificate:  (i) the amount of OID as a  percentage  of the  initial  principal
balance of this Certificate is approximately 3.36733333%;  (ii) the annual yield
to maturity of this Certificate, compounded monthly, is approximately 6.74%; and
(iii) the amount of OID allocable to the short first accrual  period (August 27,
1998 to September 25, 1998) as a percentage of the initial  principal balance of
this   Certificate,   calculated  using  the  exact  method,   is  approximately
0.02083797%.

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

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


<PAGE>


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


Dated:
                                                  First Union National Bank,
                                                     Trustee

                                                  By____________________________
                                                       Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


By ________________________
   Authorized Officer


<PAGE>


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

THIS   CERTIFICATE  IS   SUBORDINATED  IN  RIGHT  OF  PAYMENT  TO  THE  CLASS  A
CERTIFICATES,  THE CLASS B-1  CERTIFICATES,  THE CLASS B-2  CERTIFICATES AND THE
CLASS B-3  CERTIFICATES  AS  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN.

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

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


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1998-22, 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, 1998

CUSIP No.:                          First Distribution Date:  September 25, 1998

Percentage Interest evidenced       Denomination:  $
by this Certificate: %

Final Scheduled Maturity Date:  September 25, 2028


<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, 1998 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"),  a
summary  of  certain  of  the  pertinent   provisions  of  which  is  set  forth
hereinafter. To the extent not defined herein, the capitalized terms used herein
have the meanings  ascribed to such terms in the Agreement.  This Certificate is
issued  under and is subject  to the terms,  provisions  and  conditions  of the
Agreement,  to which  Agreement the Holder of this  Certificate by virtue of the
acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest evidenced by this Certificate and, subject to the prior
rights  of the  Class A  Certificates  and each  Class  of Class B  Certificates
bearing a lower numerical  designation as specified in the Agreement,  any Class
B-4  Distribution  Amount required to be distributed to Holders of the Class B-4
Certificates  on such  Distribution  Date,  subject  to  adjustment,  in certain
events,  as specified in the Agreement.  The pass-through  rate on the Class B-4
Certificates  applicable to each Distribution Date will be 6.250% per annum. The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated  to the Class B-4
Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the Principal
Balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency  specified by the 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, (a)
an opinion of counsel  acceptable to and in form and substance  satisfactory  to
the Trustee and the Seller  with  respect to certain  matters and (b) such other
documentation as the Seller or the Master Servicer may require,  as described in
the Agreement.

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

     This Certificate is issued on August 27, 1998, and based on its issue price
of 91.34202%,  including  accrued  interest,  and a stated  redemption  price at
maturity equal to its initial  principal balance (plus 2 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 375% SPA (as
defined in the Prospectus  Supplement  dated August 20, 1998 with respect to the
offering of the Class A-1,  Class A-2,  Class A-3,  Class A-4,  Class A-5, Class
A-R,  Class  B-1,  Class  B-2 and  Class B-3  Certificates)  used to price  this
Certificate:  (i) the amount of OID as a  percentage  of the  initial  principal
balance of this Certificate is approximately 8.69270333%;  (ii) the annual yield
to maturity of this Certificate, compounded monthly, is approximately 7.57%; and
(iii) the amount of OID allocable to the short first accrual  period (August 27,
1998 to September 25, 1998) as a percentage of the initial  principal balance of
this   Certificate,   calculated  using  the  exact  method,   is  approximately
0.05192639%.

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

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


<PAGE>


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


Dated:

                                               First Union National Bank,
                                                 Trustee

                                               By____________________________
                                                     Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


By ________________________
   Authorized Officer


<PAGE>


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

THIS   CERTIFICATE  IS   SUBORDINATED  IN  RIGHT  OF  PAYMENT  TO  THE  CLASS  A
CERTIFICATES,  THE CLASS B-1 CERTIFICATES, THE CLASS B-2 CERTIFICATES, THE CLASS
B-3  CERTIFICATES AND THE CLASS B-4 CERTIFICATES AS DESCRIBED IN THE POOLING AND
SERVICING AGREEMENT REFERRED TO HEREIN.

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

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


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1998-22, 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, 1998

CUSIP No.:                         First Distribution Date:  September 25, 1998

Percentage Interest evidenced      Denomination:  $
by this Certificate: %

Final Scheduled Maturity Date:  September 25, 2028


<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, 1998 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"),  a
summary  of  certain  of  the  pertinent   provisions  of  which  is  set  forth
hereinafter. To the extent not defined herein, the capitalized terms used herein
have the meanings  ascribed to such terms in the Agreement.  This Certificate is
issued  under and is subject  to the terms,  provisions  and  conditions  of the
Agreement,  to which  Agreement the Holder of this  Certificate by virtue of the
acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest evidenced by this Certificate and, subject to the prior
rights  of the  Class A  Certificates  and each  Class  of Class B  Certificates
bearing a lower numerical  designation as specified in the Agreement,  any Class
B-5  Distribution  Amount required to be distributed to Holders of the Class B-5
Certificates  on such  Distribution  Date,  subject  to  adjustment,  in certain
events,  as specified in the Agreement.  The pass-through  rate on the Class B-5
Certificates  applicable to each Distribution Date will be 6.250% per annum. The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated  to the Class B-5
Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate  Register.  Notwithstanding the
above,  the final  distribution  in reduction of the  Principal  Balance of this
Certificate  will be made after due notice of the pendency of such  distribution
and only upon  presentation  and surrender of this  Certificate at the office or
agency  specified  by the  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, (a)
an opinion of counsel  acceptable to and in form and substance  satisfactory  to
the Trustee and the Seller  with  respect to certain  matters and (b) such other
documentation as the Seller or the Master Servicer may require,  as described in
the Agreement.

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

     This Certificate is issued on August 27, 1998, and based on its issue price
of 77.74827%,  including  accrued  interest,  and a stated  redemption  price at
maturity equal to its initial  principal balance (plus 2 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 375% SPA (as
defined in the Prospectus  Supplement  dated August 20, 1998 with respect to the
offering of the Class A-1,  Class A-2,  Class A-3,  Class A-4,  Class A-5, Class
A-R,  Class  B-1,  Class  B-2 and  Class B-3  Certificates)  used to price  this
Certificate:  (i) the amount of OID as a  percentage  of the  initial  principal
balance of this Certificate is approximately 22.28645333%; (ii) the annual yield
to maturity of this Certificate,  compounded monthly,  is approximately  10.04%;
and (iii) the amount of OID allocable to the short first accrual  period (August
27, 1998 to September 25, 1998) as a percentage of the initial principal balance
of this  Certificate,  calculated  using  the  exact  method,  is  approximately
0.12069464%.

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

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


<PAGE>


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


Dated:

                                                 First Union National Bank,
                                                    Trustee

                                                 By____________________________
                                                       Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


By ________________________
   Authorized Officer


<PAGE>


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

THIS   CERTIFICATE  IS   SUBORDINATED  IN  RIGHT  OF  PAYMENT  TO  THE  CLASS  A
CERTIFICATES,  THE CLASS B-1 CERTIFICATES, THE CLASS B-2 CERTIFICATES, THE CLASS
B-3  CERTIFICATES,  THE CLASS B-4 CERTIFICATES AND THE CLASS B-5 CERTIFICATES AS
DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

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

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


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1998-22, CLASS B-6

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

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

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER, THE MASTER SERVICER, THE TRUSTEE 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, 1998

CUSIP No.:                          First Distribution Date:  September 25, 1998

Percentage Interest evidenced       Denomination:  $
by this Certificate: %

Final Scheduled Maturity Date:  September 25, 2028


<PAGE>


     THIS CERTIFIES THAT ____________________________ is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of the Class B-6  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing  Agreement dated as of August 27, 1998 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"),  a
summary  of  certain  of  the  pertinent   provisions  of  which  is  set  forth
hereinafter. To the extent not defined herein, the capitalized terms used herein
have the meanings  ascribed to such terms in the Agreement.  This Certificate is
issued  under and is subject  to the terms,  provisions  and  conditions  of the
Agreement,  to which  Agreement the Holder of this  Certificate by virtue of the
acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest evidenced by this Certificate and, subject to the prior
rights  of the  Class A  Certificates  and each  Class  of Class B  Certificates
bearing a lower numerical  designation as specified in the Agreement,  any Class
B-6  Distribution  Amount required to be distributed to Holders of the Class B-6
Certificates  on such  Distribution  Date,  subject  to  adjustment,  in certain
events,  as specified in the Agreement.  The pass-through  rate on the Class B-6
Certificates  applicable to each Distribution Date will be 6.250% per annum. The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated  to the Class B-6
Certificates, as described in the Agreement.

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

     No transfer of a Class B-6 Certificate will be made unless such transfer is
exempt from the  registration  requirements  of the  Securities  Act of 1933, as
amended,  and any applicable state securities laws or is made in accordance with
said Act and laws.  In the event that such a  transfer  is desired to be made by
the Holder hereof,  (i) the transferee will be required to execute an investment
letter in the form described in the Agreement and (ii) if such transfer is to be
made within  three  years from the later of (a) the date of initial  issuance of
the  Certificates  or (b) the last  date on which the  Seller  or any  affiliate
thereof was a Holder of the Certificates proposed to be transferred,  and unless
such transfer is made in reliance on Rule 144A of the Securities Act of 1933, as
amended,  the 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, (a)
an opinion of counsel  acceptable to and in form and substance  satisfactory  to
the Trustee and the Seller  with  respect to certain  matters and (b) such other
documentation as the Seller or the Master Servicer may require,  as described in
the Agreement.

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

     This Certificate is issued on August 27, 1998, and based on its issue price
of 39.45139%,  including  accrued  interest,  and a stated  redemption  price at
maturity equal to its initial  principal balance (plus 2 days of interest at the
pass-through  rate hereon),  is issued with original issue discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the prepayment  assumption of 375% SPA (as
defined in the Prospectus  Supplement  dated August 20, 1998 with respect to the
offering of the Class A-1,  Class A-2,  Class A-3,  Class A-4,  Class A-5, Class
A-R,  Class  B-1,  Class  B-2 and  Class B-3  Certificates)  used to price  this
Certificate:  (i) the amount of OID as a  percentage  of the  initial  principal
balance of this Certificate is approximately 60.58333333%; (ii) the annual yield
to maturity of this Certificate,  compounded monthly,  is approximately  22.52%;
and (iii) the amount of OID allocable to the short first accrual  period (August
27, 1998 to September 25, 1998) as a percentage of the initial principal balance
of this  Certificate,  calculated  using  the  exact  method,  is  approximately
0.20439800%.

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

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


<PAGE>


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


Dated:

                                                 First Union National Bank,
                                                   Trustee

                                                 By____________________________
                                                       Authorized Officer


Countersigned:

First Union National Bank,
  Trustee


By ________________________
   Authorized Officer


<PAGE>


                                    EXHIBIT C

                [Form of Reverse of Series 1998-22 Certificates]

                      NORWEST ASSET SECURITIES CORPORATION
                       MORTGAGE PASS-THROUGH CERTIFICATES
                                 SERIES 1998-22

     This Certificate is one of a duly authorized  issue of Certificates  issued
in several  Classes  designated  as Mortgage  Pass-Through  Certificates  of the
Series specified hereon (herein collectively called the "Certificates").

     The Certificates are limited in right of payment to certain collections and
recoveries  respecting the Mortgage Loans,  all as more  specifically  set forth
herein and in the Agreement. In the event funds are advanced with respect to any
Mortgage Loan by a Servicer,  the Master Servicer or the 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 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  aggregate  Percentage  Interest  will  be  issued  to the
designated transferee or transferees.

     The  Certificates  are issuable  only as  registered  Certificates  without
coupons in Classes and Denominations  specified in the Agreement. As provided in
the Agreement and subject to certain limitations therein set forth, Certificates
are exchangeable for new Certificates of authorized Denominations evidencing the
same  Class and  aggregate  Percentage  Interest,  as  requested  by the  Holder
surrendering the same.

     No service  charge  will be made for any such  registration  of transfer or
exchange,  but the Trustee or the Certificate Registrar may require payment of a
sum  sufficient  to  cover  any tax or  other  governmental  charge  payable  in
connection therewith.

     The Seller, the Master Servicer, the Trustee and the Certificate Registrar,
and any agent of the Seller, the Master Servicer, the Trustee or the Certificate
Registrar,  may treat the Person in whose name this Certificate is registered as
the owner hereof for all purposes,  and neither the Seller, the Master Servicer,
the Trustee,  the Certificate  Registrar nor any such agent shall be affected by
notice to the contrary.

     The obligations created by the Agreement in respect of the Certificates and
the Trust Estate created  thereby shall  terminate upon the last action required
to be taken by the  Trustee  on the  Final  Distribution  Date  pursuant  to the
Agreement  following  the  earlier of (i) the payment or other  liquidation  (or
advance with respect  thereto) of the last Mortgage Loan subject  thereto or the
disposition  of all  property  acquired  upon  foreclosure  or  deed  in lieu of
foreclosure  of any Mortgage  Loan, and (ii) the purchase by the Seller from the
Trust  Estate of all  remaining  Mortgage  Loans and all  property  acquired  in
respect of such Mortgage Loans; provided, however, that the Trust Estate will in
no event  continue  beyond the expiration of 21 years from the death of the last
survivor of the  descendants  of Joseph P. Kennedy,  the late  ambassador of the
United  States to the Court of St. James,  living on the date of the  Agreement.
The  Agreement  permits,  but does not  require,  the  Seller  to  purchase  all
remaining  Mortgage  Loans and all property  acquired in respect of any Mortgage
Loan at a price  determined as provided in the  Agreement.  The exercise of such
option will effect early retirement of the  Certificates,  the Seller's right to
exercise such option being subject to the Pool  Scheduled  Principal  Balance of
the Mortgage Loans as of the  Distribution  Date upon which the proceeds of such
repurchase  are  distributed  being less than ten  percent of the  Cut-Off  Date
Aggregate Principal Balance.


<PAGE>


                                   ASSIGNMENT

FOR  VALUE RECEIVED, the  undersigned  hereby sell(s), assign(s) and transfer(s)
unto ___________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
             (Please print or typewrite name and address including
                          postal zip code of assignee)

the  beneficial   interest   evidenced  by  the  within  Mortgage   Pass-Through
Certificate and hereby  authorizes the transfer of registration of such interest
to assignee on the Certificate Register of the Trust Estate.

                  I (We) further direct the Certificate Registrar to issue a new
Certificate  of a like  Denomination  or Percentage  Interest and Class,  to the
above named assignee and deliver such Certificate to the following address:

________________________________________________________________________________
________________________________________________________________________________

Social Security or other Identifying Number of Assignee:

________________________________________________________________________________

Dated:

                                         _______________________________________
                                         Signature by or on behalf of assignor

                                         _______________________________________
                                         Signature Guaranteed


<PAGE>


                            DISTRIBUTION INSTRUCTIONS

     The assignee should include the following for purposes of distribution:

     Distributions  shall  be made,  if the  assignee  is  eligible  to  receive
distributions in immediately available funds, by wire transfer or otherwise,  in
immediately available funds to _________________________________________________
_____________________________________________________________ for the account of
_____________________________________________ account number __________________,
or, if mailed by check, to ____________________________________________________.
Applicable statements should be mailed to ______________________________________
___________________________________________________. 

     This information is provided by ______________________,  the assignee named
above, or ___________________________________, as its agent.


<PAGE>


                                    EXHIBIT D

                                    RESERVED


<PAGE>


                                    EXHIBIT E

                               CUSTODIAL AGREEMENT

     THIS CUSTODIAL  AGREEMENT (as amended and  supplemented  from time to time,
the "Agreement"),  dated as of _____________,  by and among FIRST UNION NATIONAL
BANK, not  individually,  but solely as 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, 1998 relating to
the issuance of Mortgage Pass-Through Certificates, Series 1998-22 (as in effect
on the date of this Agreement,  the "Original Pooling and Servicing  Agreement",
and as amended and  supplemented  from time to time,  the "Pooling and Servicing
Agreement"); and

     WHEREAS,  the  Custodian has agreed to act as agent for the Trustee for the
purposes  of  receiving  and holding  certain  documents  and other  instruments
delivered by the Seller under the Pooling and Servicing Agreement,  all upon the
terms and conditions and subject to the limitations hereinafter set forth;

     NOW,  THEREFORE,  in consideration of the premises and the mutual covenants
and  agreements  hereinafter  set forth,  the  Trustee,  the Seller,  the Master
Servicer and the Custodian hereby agree as follows:

                                    ARTICLE I

                                   Definitions

     Capitalized  terms used in this Agreement and not defined herein shall have
the meanings  assigned in the Original Pooling and Servicing  Agreement,  unless
otherwise required by the context herein.

                                   ARTICLE II

                          Custody of Mortgage Documents

     Section 2.1. Custodian to Act as Agent;  Acceptance of Custodial Files. The
Custodian,  as the duly  appointed  agent of the  Trustee  for  these  purposes,
acknowledges  receipt of the Mortgage Notes, the Mortgages,  the assignments and
other  documents  relating to the  Mortgage  Loans  identified  on the  schedule
attached  hereto and declares that it holds and will hold such  Mortgage  Notes,
Mortgages, assignments and other documents and any similar documents received by
the Trustee  subsequent to the date hereof (the "Custodial  Files") as agent for
the  Trustee,  in trust,  for the use and  benefit  of all  present  and  future
Certificateholders.

     Section 2.2. Recordation of Assignments. If any Custodial File includes one
or more assignments to the Trustee of Mortgage Notes and related  Mortgages that
have not been recorded, each such assignment shall be delivered by the Custodian
to the Seller for the purpose of recording it in the  appropriate  public office
for real property records, and the Seller, at no expense to the Custodian, shall
promptly cause to be recorded in the appropriate public office for real property
records each such  assignment and, upon receipt thereof from such public office,
shall return each such assignment to the Custodian.

     Section 2.3.  Review of Custodial  Files.  The  Custodian  agrees,  for the
benefit of  Certificateholders,  to review, in accordance with the provisions of
Section 2.01 of the Pooling and Servicing Agreement,  each Custodial File. If in
performing  the review  required  by this  Section 2.3 the  Custodian  finds any
document or documents  constituting  a part of a Custodial File to be missing or
defective in any material  respect,  the Custodian  shall promptly so notify the
Seller, the Master Servicer and the Trustee.

     Section 2.4.  Notification of Breaches of  Representations  and Warranties.
Upon  discovery by the Custodian of a breach of any  representation  or warranty
made by the  Seller  or the  Master  Servicer  as set forth in the  Pooling  and
Servicing  Agreement,  the  Custodian  shall give prompt  written  notice to the
Seller, the Master Servicer and the Trustee.

     Section 2.5.  Custodian to Cooperate;  Release of Custodial Files. Upon the
payment in full of any Mortgage Loan, or the receipt by the Master Servicer of a
notification  that  payment in full will be escrowed in a manner  customary  for
such purposes,  the Master Servicer shall immediately  notify the Custodian by a
certification  (which certification shall include a statement to the effect that
all amounts received or to be received in connection with such payment which are
required to be deposited in the Certificate  Account pursuant to Section 3.02 of
the Pooling and  Servicing  Agreement  have been or will be so  deposited)  of a
Servicing  Officer and shall request  delivery to it of the Custodial  File. The
Custodian agrees,  upon receipt of such  certification and request,  promptly to
release the related Custodial File to the Master Servicer.

     From time to time as is appropriate for the servicing or foreclosure of any
Mortgage Loan, the Master  Servicer shall deliver to the Custodian a certificate
of a Servicing  Officer  requesting  that  possession  of all,  or any  document
constituting  part of, the Custodial File be released to the Master Servicer and
certifying  as to the reason for such  release  and that such  release  will not
invalidate any insurance coverage provided in respect of the Mortgage Loan. With
such  certificate,  the Master Servicer shall deliver to the Custodian a receipt
signed by a Servicing Officer on behalf of the Master Servicer, and upon receipt
of the  foregoing,  the  Custodian  shall  deliver  the  Custodial  File or such
document to the Master Servicer.  The Master Servicer shall cause each Custodial
File or any document  therein so released to be returned to the  Custodian  when
the need  therefor  by the  Master  Servicer  no longer  exists,  unless (i) the
Mortgage Loan has been liquidated and the Liquidation  Proceeds  relating to the
Mortgage  Loan have been  deposited  in the  Certificate  Account  to the extent
required by the Pooling and Servicing  Agreement or (ii) the  Custodial  File or
such document has been delivered to an attorney, or to a public trustee or other
public official as required by law, for purposes of initiating or pursuing legal
action or other proceedings for the foreclosure of the Mortgaged Property either
judicially  or  non-judicially,  and the Master  Servicer  has  delivered to the
Custodian a  certificate  of a Servicing  Officer  certifying as to the name and
address  of the  Person  to which  such  Custodial  File or such  document  were
delivered  and the  purpose or purposes  of such  delivery.  In the event of the
liquidation of a Mortgage  Loan,  the Custodian  shall deliver such receipt with
respect thereto to the Master  Servicer upon deposit of the related  Liquidation
Proceeds in the  Certificate  Account to the extent  required by the Pooling and
Servicing Agreement.

     Section  2.6.  Assumption  Agreements.  In the  event  that any  assumption
agreement or substitution of liability agreement is entered into with respect to
any Mortgage  Loan subject to this  Agreement in  accordance  with the terms and
provisions of the Pooling and Servicing  Agreement,  the Master  Servicer  shall
notify the Custodian  that such  assumption or  substitution  agreement has been
completed by  forwarding  to the  Custodian  the original of such  assumption or
substitution agreement,  which copy shall be added to the related Custodial File
and, for all purposes,  shall be considered a part of such Custodial File to the
same extent as all other documents and instruments constituting parts thereof.

                                   ARTICLE III

                            Concerning the Custodian

     Section 3.1.  Custodian a Bailee and Agent of the Trustee.  With respect to
each Mortgage Note,  Mortgage and other  documents  constituting  each Custodian
File which are  delivered to the  Custodian,  the Custodian is  exclusively  the
bailee  and agent of the  Trustee,  holds  such  documents  for the  benefit  of
Certificateholders and undertakes to perform such duties and only such duties as
are  specifically  set forth in this Agreement.  Except upon compliance with the
provisions of Section 2.5 of this Agreement, no Mortgage Note, Mortgage or other
document  constituting  a part of a  Custodial  File shall be  delivered  by the
Custodian to the Seller or the Master  Servicer or otherwise  released  from the
possession of the Custodian.

     Section 3.2.  Indemnification.  The Seller  hereby  agrees to indemnify and
hold the Custodian  harmless from and against all claims,  liabilities,  losses,
actions,  suits or proceedings at law or in equity, or any other expenses,  fees
or charges of any  character or nature,  which the  Custodian  may incur or with
which the  Custodian  may be  threatened  by reasons of its acting as  custodian
under this Agreement, including indemnification of the Custodian against any and
all expenses,  including  attorney's  fees if counsel for the Custodian has been
approved  by the  Seller,  and  the  cost  of  defending  any  action,  suit  or
proceedings  or  resisting  any  claim.  Notwithstanding  the  foregoing,  it is
specifically  understood and agreed that in the event any such claim, liability,
loss,  action,  suit or proceeding or other expense,  fees, or charge shall have
been caused by reason of any negligent act, negligent failure to act, or willful
misconduct  on the part of the  Custodian,  or which shall  constitute a willful
breach of its duties hereunder, the indemnification provisions of this Agreement
shall not apply.

     Section  3.3.  Custodian  May  Own  Certificates.   The  Custodian  in  its
individual or any other capacity may become the owner or pledgee of Certificates
with the same rights it would have if it were not Custodian.

     Section 3.4.  Master  Servicer to Pay  Custodian's  Fees and Expenses.  The
Master Servicer  covenants and agrees to pay to the Custodian from time to time,
and the Custodian shall be entitled to, reasonable compensation for all services
rendered by it in the exercise and  performance  of any of the powers and duties
hereunder of the  Custodian,  and the Master  Servicer will pay or reimburse the
Custodian  upon its  request  for all  reasonable  expenses,  disbursements  and
advances  incurred  or made  by the  Custodian  in  accordance  with  any of the
provisions of this  Agreement  (including the  reasonable  compensation  and the
expenses and  disbursements  of its counsel and of all persons not  regularly in
its employ), except any such expense,  disbursement or advance as may arise from
its negligence or bad faith.

     Section  3.5.  Custodian  May  Resign;  Trustee May Remove  Custodian.  The
Custodian may resign from the  obligations  and duties hereby imposed upon it as
such  obligations  and duties  relate to its acting as Custodian of the Mortgage
Loans. Upon receiving such notice of resignation,  the Trustee shall either take
custody of the  Custodial  Files  itself and give prompt  notice  thereof to the
Seller,  the Master  Servicer and the Custodian or promptly  appoint a successor
Custodian by written  instrument,  in  duplicate,  one copy of which  instrument
shall be  delivered to the  resigning  Custodian  and one copy to the  successor
Custodian.  If the Trustee shall not have taken  custody of the Custodial  Files
and no  successor  Custodian  shall  have been so  appointed  and have  accepted
resignation,  the  resigning  Custodian  may  petition  any  court of  competent
jurisdiction for the appointment of a successor Custodian.

     The  Trustee  may remove the  Custodian  at any time.  In such  event,  the
Trustee shall appoint, or petition a court of competent jurisdiction to appoint,
a successor Custodian  hereunder.  Any successor Custodian shall be a depository
institution  subject to supervision or examination by federal or state authority
and shall be able to satisfy the other requirements contained in Section 3.7.

     Any  resignation or removal of the Custodian and appointment of a successor
Custodian  pursuant to any of the  provisions  of this  Section 3.5 shall become
effective upon acceptance of appointment by the successor Custodian. The Trustee
shall  give  prompt  notice  to  the  Seller  and  the  Master  Servicer  of the
appointment of any successor  Custodian.  No successor Custodian shall have been
appointed and accepted  appointment by the Trustee without the prior approval of
the Seller and the Master Servicer.

     Section 3.6. Merger or  Consolidation  of Custodian.  Any Person into which
the Custodian  may be merged or converted or with which it may be  consolidated,
or any Person  resulting from any merger,  conversion or  consolidation to which
the Custodian shall be a party, or any Person  succeeding to the business of the
Custodian,  shall be the  successor  of the  Custodian  hereunder,  without  the
execution  or filing of any paper or any  further  act on the part of any of the
parties hereto, anything herein to the contrary notwithstanding.

     Section  3.7.  Representations  of  the  Custodian.  The  Custodian  hereby
represents  that  it is a  depository  institution  subject  to  supervision  or
examination by a federal or state authority,  has a combined capital and surplus
of at least  $10,000,000 and is qualified to do business in the  jurisdiction in
which it will hold any Custodian File.

                                   ARTICLE IV

                            Miscellaneous Provisions

     Section 4.1. Notices. All notices, requests, consents and demands and other
communications required under this Agreement or pursuant to any other instrument
or  document  delivered  hereunder  shall be in writing  and,  unless  otherwise
specifically provided, may be delivered personally,  by telegram or telex, or by
registered or certified mail, postage prepaid,  return receipt requested, at the
addresses  specified  on  the  signature  page  hereof  (unless  changed  by the
particular  party whose address is stated herein by similar  notice in writing),
in which case the notice will be deemed delivered when received.

     Section 4.2.  Amendments.  No modification or amendment of or supplement to
this  Agreement  shall be valid or  effective  unless the same is in writing and
signed by all parties  hereto,  and neither the Seller,  the Master Servicer nor
the Trustee  shall enter into any  amendment  hereof  except as permitted by the
Pooling and  Servicing  Agreement.  The Trustee  shall give prompt notice to the
Custodian of any amendment or supplement to the Pooling and Servicing  Agreement
and furnish the Custodian with written copies thereof.

     Section 4.3.  Governing Law. This Agreement shall be deemed a contract made
under the laws of the State of New York and shall be  construed  and enforced in
accordance with and governed by the laws of the State of New York.

     Section  4.4.  Recordation  of  Agreement.   To  the  extent  permitted  by
applicable  law, this  Agreement is subject to  recordation  in all  appropriate
public offices for real property records in all the counties or other comparable
jurisdictions in which any or all of the properties subject to the Mortgages are
situated,  and in any other  appropriate  public  recording office or elsewhere,
such  recordation  to be effected by the Master  Servicer  and at its expense on
direction by the Trustee,  but only upon direction  accompanied by an Opinion of
Counsel to the effect that such recordation  materially and beneficially affects
the interests of the Certificateholders.

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

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


<PAGE>


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

Address:                                             FIRST UNION NATIONAL BANK

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


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


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


Address:                                             [CUSTODIAN]

                                                     By:________________________
                                                     Name:______________________
                                                     Title:_____________________


<PAGE>


STATE OF               )
                       :  ss.:
COUNTY OF              )

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


                                              __________________________________
                                                         Notary Public


[NOTARIAL SEAL]


<PAGE>


STATE OF           )
                   :  ss.:
COUNTY OF          )

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


                                                      __________________________
                                                             Notary Public


[NOTARIAL SEAL]


<PAGE>


STATE OF                 )
                         :  ss.:
COUNTY OF                )

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


                                                     ___________________________
                                                             Notary Public


[NOTARIAL SEAL]


<PAGE>


STATE OF            )
                    :  ss.:
COUNTY OF           )

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


                                                    ____________________________
                                                              Notary Public

 [NOTARIAL SEAL]


<PAGE>


                                   EXHIBIT F-1


            [Schedule of Mortgage Loans Serviced by Norwest Mortgage]



NASCOR
NMI/1998-22 Exhibit F-1
20 & 30 YEAR FIXED RATE RELOCATION LOANS

<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
NO DES MOINES LOANS

COUNT:    0
WAC:    
WAM:    
WALTV:  

</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
NO DES MOINES LOANS
</TABLE>


<PAGE>


                                   EXHIBIT F-2


            [Schedule of Mortgage Loans Serviced by Other Servicers]


<TABLE>
NASCOR
NMI/1998-22 Exhibit F-2
20 & 30 YEAR FIXED RATE RELOCATION LOANS

<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4607798     IRVINE                     CA     92606        SFD       6.875        6.250      $1,665.65        360        1-Jul-28
4628766     FAR HILLS                  NJ     07931        SFD       6.625        6.250      $3,585.75        360        1-Jul-28
4634208     MENDHAM BOROUGH            NJ     07945        SFD       6.875        6.250      $2,286.77        360        1-May-28
4638707     WINCHESTER                 MA     01890        SFD       7.000        6.250      $2,687.83        360        1-Jul-28
4641989     MOUNT KISCO                NY     10549        SFD       6.750        6.250      $3,437.57        360        1-Jul-28
4649637     OAK RIDGE                  NC     27310        SFD       6.625        6.250      $2,049.00        360        1-Aug-28
4653282     MAPLE GROVE                MN     55311        SFD       7.000        6.250      $2,128.97        360        1-Jul-28
4654535     TEWKSBURY                  NJ     08833        SFD       6.875        6.250      $3,061.29        360        1-Apr-28
4664038     NEWTOWN                    PA     18940        SFD       6.875        6.250      $1,576.63        360        1-Jul-28
4672720     YORBA LINDA                CA     92887        SFD       7.125        6.250      $2,694.88        360        1-Aug-28
4678063     SOUTHLAKE                  TX     76092        SFD       6.750        6.250      $2,918.70        360        1-Aug-28
4682642     LIVERMORE                  CA     94550        SFD       7.125        6.250      $1,757.74        360        1-Jul-28
4682991     PEGRAM                     TN     37143        SFD       7.125        6.250      $1,539.45        360        1-Aug-28
4683198     LILBURN                    GA     30047        SFD       6.875        6.250      $2,036.48        360        1-Aug-28
4689192     NAPERVILLE                 IL     60564        SFD       7.000        6.250      $1,916.08        360        1-Aug-28
4689835     ORLANDO                    FL     32828        SFD       7.000        6.250      $1,629.00        360        1-Aug-28
4690732     IRVINE                     CA     92614        LCO       6.625        6.250       $942.54         360        1-Mar-28
4690875     BAINBRIDGE                 WA     98110        SFD       7.375        6.250      $2,393.19        360        1-Aug-28
4691746     WRIGHTSTOWN TOWNSHIP       PA     18940        SFD       6.375        6.108      $2,277.13        360        1-Aug-28
4692350     ALPHARETTA                 GA     30004        SFD       7.125        6.250      $2,694.88        360        1-Mar-28
4693238     LEBANON                    NJ     08833        SFD       6.750        6.250      $2,140.38        360        1-Aug-28
4695613     HOLLYWOOD                  CA     90068        SFD       7.375        6.250      $2,107.25        360        1-May-28
4697124     RINGOES                    NJ     08551        SFD       6.750        6.250      $1,537.18        360        1-Jul-28
4697399     OSPREY                     FL     34229        SFD       6.500        6.233      $2,875.91        360        1-Jul-28
4698539     LEAWOOD                    KS     66224        SFD       6.875        6.250      $1,970.79        360        1-Aug-28
4699563     ALTADENA                   CA     91001        SFD       6.750        6.250      $1,940.93        360        1-Jul-28
4699747     SUGARLAND                  TX     77479        SFD       6.875        6.250      $1,751.37        360        1-Mar-28
4699870     AVON                       CT     06001        SFD       6.875        6.250      $1,740.87        360        1-Jul-28
4699924     BERNARDSVILLE              NJ     07924        SFD       6.500        6.233      $1,706.59        360        1-Aug-28
4702113     MILL CREEK                 WA     98012        SFD       6.875        6.250      $1,838.75        360        1-Aug-28
4702804     NEWTOWN                    PA     18940        PUD       7.125        6.250      $1,246.38        360        1-Jul-28
4702817     LEXINGTON                  MA     02173        SFD       7.000        6.250      $1,899.44        360        1-Aug-28
4703696     HUNTINGTON                 NY     11743        SFD       6.625        6.250      $3,575.50        360        1-Jul-28
4704332     MERION STATION             PA     19066        SFD       6.875        6.250      $2,575.17        360        1-Aug-28
4705112     ALPHARETTA                 GA     30022        SFD       6.500        6.233      $1,886.41        360        1-Aug-28
4705198     PHOENIXVILLE               PA     19460        SFD       6.500        6.233      $1,896.21        360        1-Aug-28
4707490     ALPHARETTA                 GA     30201        SFD       6.500        6.233      $2,256.49        360        1-May-28
4708007     SUPERIOR                   CO     80027        SFD       7.000        6.250      $1,614.69        360        1-Jun-28
4710223     DRAPER                     UT     84020        SFD       6.875        6.250      $1,684.04        360        1-Aug-28
4712124     RIDGEFIELD                 CT     06877        SFD       6.750        6.250      $3,642.53        360        1-Aug-28
4713275     PARK RIDGE                 NJ     07656        SFD       6.750        6.250      $1,832.29        360        1-Aug-28
4715320     CHAPPAQUA                  NY     10514        SFD       6.750        6.250      $3,879.27        360        1-Aug-28
4716243     NEW ROCHELLE               NY     10804        SFD       7.250        6.250      $2,217.08        360        1-Jul-28
4717597     HUNTINGTON BEACH           CA     92648        SFD       6.625        6.250      $3,713.81        360        1-Aug-28
4718363     NORWALK                    CT     06851        SFD       6.875        6.250      $1,524.08        360        1-Jul-28
4718558     PHOENIXVILLE               PA     19460        SFD       7.000        6.250      $1,586.09        360        1-Aug-28

</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4607798        $253,336.98         79.99                                    0.250                 0.017      0.358 
4628766        $559,505.92         74.41      GD 3YR                        0.250                 0.017      0.108 
4634208        $347,217.63         63.41                                    0.250                 0.017      0.358 
4638707        $403,668.84         80.00                                    0.250                 0.017      0.483 
4641989        $529,543.68         75.18                                    0.250                 0.017      0.233 
4649637        $320,000.00         79.80                                    0.250                 0.017      0.108 
4653282        $319,737.70         79.79                                    0.250                 0.017      0.483 
4654535        $464,420.49         80.00                                    0.250                 0.017      0.358 
4664038        $239,798.37         75.34                                    0.250                 0.017      0.358 
4672720        $400,000.00         86.07      GD 6YR             11         0.250                 0.017      0.608 
4678063        $450,000.00         67.47                                    0.250                 0.017      0.233 
4682642        $260,691.35         89.35      GD 8YR             99         0.250                 0.017      0.608 
4682991        $228,500.00         94.99                         99         0.250                 0.017      0.608 
4683198        $310,000.00         69.66                                    0.250                 0.017      0.358 
4689192        $288,000.00         90.00                         99         0.250                 0.017      0.483 
4689835        $244,850.00         95.00                         99         0.250                 0.017      0.483 
4690732        $146,536.23         80.00                                    0.250                 0.017      0.108 
4690875        $346,500.00         90.00                         99         0.250                 0.017      0.858 
4691746        $365,000.00         62.39                                    0.250                 0.017      0.000 
4692350        $398,060.10         89.29                         99         0.250                 0.017      0.608 
4693238        $330,000.00         76.29                                    0.250                 0.017      0.233 
4695613        $304,399.24         90.00      GD19YR             99         0.250                 0.017      0.858 
4697124        $236,795.95         73.15                                    0.250                 0.017      0.233 
4697399        $454,588.67         66.42                                    0.250                 0.017      0.000 
4698539        $300,000.00         69.02                                    0.250                 0.017      0.358 
4699563        $298,992.35         95.00                         11         0.250                 0.017      0.233 
4699747        $265,467.22         80.00                                    0.250                 0.017      0.358 
4699870        $264,777.36         46.09                                    0.250                 0.017      0.358 
4699924        $270,000.00         80.00                                    0.250                 0.017      0.000 
4702113        $279,900.00         89.28                         99         0.250                 0.017      0.358 
4702804        $184,852.06         94.39                         12         0.250                 0.017      0.608 
4702817        $285,500.00         89.22                         99         0.250                 0.017      0.483 
4703696        $557,907.33         80.00      GD 3YR                        0.250                 0.017      0.108 
4704332        $392,000.00         80.00                                    0.250                 0.017      0.358 
4705112        $298,450.00         79.99                                    0.250                 0.017      0.000 
4705198        $300,000.00         78.33                                    0.250                 0.017      0.000 
4707490        $356,026.52         76.31                                    0.250                 0.017      0.000 
4708007        $242,300.96         79.99                                    0.250                 0.017      0.483 
4710223        $256,350.00         84.99                         11         0.250                 0.017      0.358 
4712124        $561,600.00         79.13                                    0.250                 0.017      0.233 
4713275        $282,500.00         84.33      GD 5YR             17         0.250                 0.017      0.233 
4715320        $598,100.00         80.00                                    0.250                 0.017      0.233 
4716243        $324,746.46         87.84                         17         0.250                 0.017      0.733 
4717597        $580,000.00         70.73      GD 3YR                        0.250                 0.017      0.108 
4718363        $231,805.09         87.55                         99         0.250                 0.017      0.358 
4718558        $238,400.00         80.00                                    0.250                 0.017      0.483 

</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4721588     ROSWELL                    GA     30075        SFD       7.000        6.250      $1,729.79        360        1-Aug-28
4721617     CASTLE ROCK                CO     80104        SFD       6.875        6.250      $2,680.93        360        1-Aug-28
4721743     CONCORD                    CA     94521        SFD       6.875        6.250      $1,738.24        360        1-Jul-28
4722356     CARLSBAD                   CA     92009        SFD       6.500        6.233      $3,010.86        360        1-Jul-28
4722855     FORT COLLINS               CO     80527        SFD       6.500        6.233      $2,212.24        360        1-Jul-28
4723667     FORT WAYNE                 IN     46804        SFD       6.500        6.233      $2,401.86        360        1-May-28
4723678     NORTH ANDOVER              MA     01845        SFD       6.875        6.250      $2,755.16        360        1-Aug-28
4723823     ROWLAND HEIGHTS            CA     91748        SFD       6.875        6.250      $1,952.73        360        1-Jul-28
4724336     VERNON HILLS               IL     60061        SFD       7.125        6.250      $1,684.30        360        1-Aug-28
4725239     CLINTON                    NJ     08801        SFD       6.625        6.250      $2,586.86        360        1-Aug-28
4725370     NAPERVILLE                 IL     60564        SFD       6.875        6.250      $2,502.90        360        1-Aug-28
4725640     CARNATION                  WA     98014        SFD       6.500        6.233      $1,674.99        360        1-Jul-28
4726019     ASHBURN                    VA     20147        SFD       6.875        6.250      $1,744.15        360        1-Aug-28
4726739     FAIRPORT                   NY     14450        SFD       7.125        6.250      $1,765.15        360        1-Jul-28
4727927     NEWTOWN                    CT     06470        SFD       7.250        6.250      $2,621.95        360        1-Aug-28
4728270     LYNCHBURG                  VA     24503        SFD       7.125        6.250      $2,278.18        360        1-Apr-28
4728659     SKILLMAN                   NJ     08558        SFD       6.750        6.250      $2,270.10        360        1-May-28
4729571     PRINCETON                  NJ     08540        SFD       6.875        6.250      $1,563.50        360        1-Jul-28
4729750     LITTLETON                  CO     80127        SFD       6.625        6.250      $4,064.70        360        1-Jul-28
4730238     WESTON                     FL     33327        SFD       6.875        6.250      $2,463.49        360        1-Aug-28
4730733     WOODINVILLE                WA     98072        SFD       6.875        6.250      $2,299.26        360        1-Jul-28
4731245     NORTH ANDOVER              MA     01845        SFD       7.375        6.250      $2,511.30        360        1-Jul-28
4731332     RIDGEFIELD                 CT     06877        SFD       6.750        6.250      $2,107.95        360        1-Jul-28
4731957     BELLE MEAD                 NJ     08502        SFD       6.625        6.250      $1,591.50        360        1-Jul-28
4731988     SANTA CLARA                CA     95054        SFD       6.500        6.233      $2,375.95        360        1-Aug-28
4733160     NEW ALBANY                 OH     43054        SFD       6.625        6.250      $1,638.24        360        1-Aug-28
4733164     MIDDLETOWN                 NJ     07748        SFD       7.000        6.250      $1,756.40        360        1-Jul-28
4733472     BASKING RIDGE              NJ     07920        SFD       7.375        6.250      $3,845.34        360        1-Jul-28
4733609     SMYRNA                     GA     30080        SFD       6.250        5.983      $1,543.92        360        1-Aug-28
4734797     STAMFORD                   CT     06905        LCO       6.625        6.250      $1,520.74        360        1-Aug-28
4734940     SIMPSONVILLE               SC     29681        SFD       6.500        6.233      $1,643.38        360        1-Jul-28
4735534     ROCKAWAY                   NJ     07866        SFD       6.625        6.250      $1,972.16        360        1-Jul-28
4735707     VOORHEES                   NJ     08043        SFD       6.500        6.233      $1,453.76        360        1-Aug-28
4735910     OAKLAND                    MI     48363        SFD       6.625        6.250      $2,881.40        360        1-Aug-28
4736086     RIDGEFIELD                 CT     06877        SFD       6.875        6.250      $2,102.18        360        1-Aug-28
4737727     MESA                       AZ     85207        SFD       6.875        6.250      $1,666.30        360        1-Jul-28
4738212     LANDENBERG                 PA     19350        SFD       6.500        6.233      $1,781.80        360        1-Aug-28
4738226     RIDGEFIELD                 CT     06877        SFD       6.625        6.250      $1,818.49        360        1-Aug-28
4738231     BERNARDSVILLE              NJ     07924        SFD       6.875        6.250      $1,973.42        360        1-Jul-28
4738288     ORLANDO                    FL     32835        SFD       6.750        6.250      $1,940.93        360        1-Aug-28
4738642     ROSWELL                    GA     30076        SFD       7.250        6.250      $2,592.27        360        1-Jul-28
4738725     LITTLETON                  MA     01460        SFD       6.750        6.250      $1,850.78        360        1-Aug-28
4738919     YARDLEY                    PA     19067        SFD       6.750        6.250      $1,634.47        360        1-Aug-28
4739034     MARLBOROUGH                MA     01752        SFD       7.125        6.250      $1,684.30        360        1-Jul-28
4739571     EVANSTON                   IL     60201        SFD       7.250        6.250      $3,268.99        360        1-Jul-28
4739690     RIDGELAND                  MS     39157        SFD       7.250        6.250      $2,237.54        360        1-Jun-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4721588        $260,000.00         72.61                                    0.250                 0.017      0.483
4721617        $408,100.00         80.00                                    0.250                 0.017      0.358
4721743        $264,377.70         65.66      GD 5YR                        0.250                 0.017      0.358
4722356        $475,919.37         78.17                                    0.250                 0.017      0.000
4722855        $349,683.59         75.32                                    0.250                 0.017      0.000
4723667        $378,963.82         84.03                         06         0.250                 0.017      0.000
4723678        $419,400.00         80.00                                    0.250                 0.017      0.358
4723823        $297,000.26         80.00                                    0.250                 0.017      0.358
4724336        $250,000.00         63.45      GD 3YR                        0.250                 0.017      0.608
4725239        $404,000.00         80.00                                    0.250                 0.017      0.108
4725370        $381,000.00         73.87                                    0.250                 0.017      0.358
4725640        $264,760.43         67.95                                    0.250                 0.017      0.000
4726019        $265,500.00         80.00                                    0.250                 0.017      0.358
4726739        $261,790.48         94.99      GD 3YR             99         0.250                 0.017      0.608
4727927        $384,350.00         89.76                         99         0.250                 0.017      0.733
4728270        $337,058.67         90.00                         99         0.250                 0.017      0.608
4728659        $349,090.85         56.91                                    0.250                 0.017      0.233
4729571        $237,800.04         56.94                                    0.250                 0.017      0.358
4729750        $634,239.92         79.85                                    0.250                 0.017      0.108
4730238        $375,000.00         65.52      GD 3YR                        0.250                 0.017      0.358
4730733        $349,705.95         54.01                                    0.250                 0.017      0.358
4731245        $363,323.32         90.00                         12         0.250                 0.017      0.858
4731332        $324,720.18         66.92                                    0.250                 0.017      0.233
4731957        $248,330.70         74.99      GD 4YR                        0.250                 0.017      0.108
4731988        $375,900.00         80.00                                    0.250                 0.017      0.000
4733160        $255,850.00         80.00                                    0.250                 0.017      0.108
4733164        $263,783.60         80.00                                    0.250                 0.017      0.483
4733472        $556,326.35         85.00      GD10YR             99         0.250                 0.017      0.858
4733609        $250,750.00         79.99                                    0.250                 0.017      0.000
4734797        $237,500.00         79.98                                    0.250                 0.017      0.108
4734940        $259,764.95         80.00                                    0.250                 0.017      0.000
4735534        $307,728.26         79.79      GD 3YR                        0.250                 0.017      0.108
4735707        $230,000.00         74.19                                    0.250                 0.017      0.000
4735910        $450,000.00         76.47                                    0.250                 0.017      0.108
4736086        $320,000.00         67.37                                    0.250                 0.017      0.358
4737727        $253,436.90         89.99                         99         0.250                 0.017      0.358
4738212        $281,900.00         86.09                         99         0.250                 0.017      0.000
4738226        $284,000.00         80.00                                    0.250                 0.017      0.108
4738231        $300,147.62         80.00                                    0.250                 0.017      0.358
4738288        $299,250.00         95.00                         11         0.250                 0.017      0.233
4738642        $379,703.56         80.00                                    0.250                 0.017      0.733
4738725        $285,350.00         89.99                         99         0.250                 0.017      0.233
4738919        $252,000.00         84.00                         99         0.250                 0.017      0.233
4739034        $249,800.08         76.45                                    0.250                 0.017      0.608
4739571        $478,826.18         80.00      GD 2YR                        0.250                 0.017      0.733
4739690        $327,486.70         79.99                                    0.250                 0.017      0.733

</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4739898     LAKE FOREST                FL     32771        SFD       6.625        6.250      $2,147.93        360        1-Jul-28
4739949     ANNANDALE                  NJ     08801        SFD       7.625        6.250      $2,636.54        360        1-Jul-28
4740028     FALLSTON                   MD     21047        SFD       6.750        6.250      $1,686.36        360        1-Jul-28
4740089     MARTINEZ                   CA     94553        SFD       7.250        6.250      $1,944.21        360        1-Aug-28
4740406     PORT MATILDA               PA     16870        SFD       7.000        6.250      $1,782.02        360        1-Aug-28
4740577     ISSAQUAH                   WA     98029        SFD       6.750        6.250      $2,549.97        360        1-Jul-28
4740879     WARREN TOWNSHIP            NJ     07059        SFD       7.125        6.250      $2,155.90        360        1-Jul-28
4741030     WYNNEWOOD                  PA     19096        SFD       7.125        6.250      $2,209.80        360        1-Jul-28
4741309     CHARLOTTE                  NC     28269        SFD       7.000        6.250      $2,245.40        360        1-Jul-28
4742083     HANOVER                    MA     02339        SFD       7.625        6.250      $2,123.39        360        1-Aug-28
4742658     SIMPSONVILLE               SC     29681        SFD       6.625        6.250      $1,536.75        360        1-Aug-28
4742794     SEAL BEACH                 CA     90740        SFD       7.000        6.250      $1,995.91        360        1-Aug-28
4743508     PITTSTOWN                  NJ     08867        SFD       6.625        6.250      $2,511.62        360        1-Jul-28
4743668     AURORA                     CO     80016        SFD       6.750        6.250      $1,978.23        360        1-Jul-28
4745004     WEST CHESTER               PA     19380        SFD       6.875        6.250      $1,622.62        360        1-Aug-28
4745128     SPRINGDALE                 AR     72764        SFD       6.375        6.108      $1,715.65        360        1-Aug-28
4745483     WILDWOOD                   MO     63005        SFD       7.250        6.250      $2,346.35        360        1-Aug-28
4745988     CHAPPAQUA                  NY     10514        SFD       7.125        6.250      $4,471.81        360        1-Aug-28
4746592     SARASOTA                   FL     34241        SFD       6.500        6.233      $1,611.78        360        1-Aug-28
4746618     PALO ALTO                  CA     94306        SFD       6.625        6.250      $3,765.03        360        1-Jul-28
4746705     SAINT HELENA               CA     94574        SFD       6.750        6.250      $2,270.10        360        1-Aug-28
4746849     WHITEHOUSE STATION         NJ     08889        SFD       6.625        6.250      $3,207.96        360        1-Jul-28
4746879     RINGOES                    NJ     08551        SFD       6.625        6.250      $2,074.29        360        1-Jul-28
4747208     CHANHASSEN                 MN     55317        SFD       7.375        6.250      $1,602.37        360        1-May-28
4747990     ROSWELL                    GA     30075        SFD       7.375        6.250      $2,592.11        360        1-Aug-28
4748025     EAST GREENWICH             RI     02818        SFD       6.875        6.250      $1,518.82        360        1-Jul-28
4748135     MIDLOTHIAN                 VA     23113        SFD       7.000        6.250      $1,969.30        360        1-Jul-28
4748176     DALLAS                     PA     18612        SFD       6.625        6.250      $2,029.79        360        1-Aug-28
4748787     CARY                       NC     27511        SFD       6.875        6.250      $1,806.23        360        1-Jul-28
4748840     HINSDALE                   IL     60521        SFD       7.000        6.250      $2,341.87        360        1-Jul-28
4748983     RIDGEFIELD                 CT     06877        SFD       7.000        6.250      $3,825.49        360        1-May-28
4749350     WOODINVILLE                WA     98072        SFD       7.250        6.250      $1,698.62        360        1-Jul-28
4749779     STAMFORD                   CT     06907        SFD       6.875        6.250      $1,642.33        360        1-Jul-28
4750002     HAWAII KAI                 HI     96825        SFD       6.875        6.250      $2,305.83        360        1-Jul-28
4750071     WAYLAND                    MA     01778        SFD       6.875        6.250      $2,079.84        360        1-Jul-28
4750133     PRIOR LAKE                 MN     55372        SFD       6.875        6.250      $1,707.36        360        1-Jun-28
4750413     DANVILLE                   CA     94506        SFD       6.500        6.233      $2,528.28        360        1-Jul-28
4750886     UPPER SADDLE RIVER         NJ     07458        SFD       6.875        6.250      $2,627.72        360        1-Jul-28
4750905     CLAYTON                    CA     94517        SFD       6.875        6.250      $1,821.01        360        1-Aug-28
4751141     ACWORTH                    GA     30101        SFD       6.875        6.250      $2,102.17        360        1-Jun-28
4751435     WOODBURY                   MN     55125        SFD       7.250        6.250      $2,428.55        360        1-Aug-28
4751449     MARTINSVILLE               NJ     08836        LCO       6.625        6.250      $1,518.50        360        1-Jul-28
4752109     SPARTA                     NJ     07871        SFD       6.750        6.250      $1,751.22        360        1-Aug-28
4752316     WADSWORTH                  IL     60083        SFD       6.750        6.250      $1,718.79        360        1-Jul-28
4752326     BILOXI                     MS     39530        SFD       7.625        6.250      $1,943.25        360        1-Jul-28
4752389     RED BANK                   NJ     07701        SFD       6.500        6.233      $1,564.37        360        1-Jul-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4739898        $335,154.03         80.00                                    0.250                 0.017      0.108 
4739949        $372,230.39         82.32                         99         0.250                 0.017      1.108 
4740028        $259,776.14         80.00                                    0.250                 0.017      0.233 
4740089        $285,000.00         83.82                         99         0.250                 0.017      0.733 
4740406        $267,850.00         79.84                                    0.250                 0.017      0.483 
4740577        $392,811.50         80.00                                    0.250                 0.017      0.233 
4740879        $319,744.10         76.19                                    0.250                 0.017      0.608 
4741030        $327,379.62         80.00                                    0.250                 0.017      0.608 
4741309        $337,223.35         90.00                         99         0.250                 0.017      0.483 
4742083        $300,000.00         93.31                         99         0.250                 0.017      1.108 
4742658        $240,000.00         88.89                         11         0.250                 0.017      0.108 
4742794        $300,000.00         84.99                         99         0.250                 0.017      0.483 
4743508        $391,903.93         89.99      GD 4YR             06         0.250                 0.017      0.108 
4743668        $304,737.40         60.40                                    0.250                 0.017      0.233 
4745004        $247,000.00         69.79                                    0.250                 0.017      0.358 
4745128        $275,000.00         76.18                                    0.250                 0.017      0.000 
4745483        $343,950.00         89.99                         99         0.250                 0.017      0.733 
4745988        $663,750.00         75.00                                    0.250                 0.017      0.608 
4746592        $255,000.00         77.27                                    0.250                 0.017      0.000 
4746618        $587,481.22         80.00                                    0.250                 0.017      0.108 
4746705        $350,000.00         67.44                                    0.250                 0.017      0.233 
4746849        $500,557.98         82.13      GD 4YR             99         0.250                 0.017      0.108 
4746879        $323,664.18         90.00      FX 5YR             11         0.250                 0.017      0.108 
4747208        $231,467.13         80.00                                    0.250                 0.017      0.858 
4747990        $375,300.00         89.98                         99         0.250                 0.017      0.858 
4748025        $231,005.76         80.00                                    0.250                 0.017      0.358 
4748135        $295,757.37         80.00                                    0.250                 0.017      0.483 
4748176        $317,000.00         76.39                                    0.250                 0.017      0.108 
4748787        $274,719.00         80.00                                    0.250                 0.017      0.358 
4748840        $351,711.46         80.00      GD 4YR                        0.250                 0.017      0.483 
4748983        $573,577.77         73.72                                    0.250                 0.017      0.483 
4749350        $248,805.76         63.68                                    0.250                 0.017      0.733 
4749779        $249,789.96         69.44                                    0.250                 0.017      0.358 
4750002        $350,705.11         90.00                         99         0.250                 0.017      0.358 
4750071        $316,334.01         53.04      GD 3YR                        0.250                 0.017      0.358 
4750133        $259,462.06         79.99                                    0.250                 0.017      0.358 
4750413        $399,638.39         24.62      GD 6YR                        0.250                 0.017      0.000 
4750886        $399,663.95         80.00                                    0.250                 0.017      0.358 
4750905        $277,200.00         90.00      GD 3YR             99         0.250                 0.017      0.358 
4751141        $319,460.79         73.56                                    0.250                 0.017      0.358 
4751435        $356,000.00         80.00                                    0.250                 0.017      0.733 
4751449        $236,940.77         76.29      GD 5YR                        0.250                 0.017      0.108 
4752109        $270,000.00         77.14                                    0.250                 0.017      0.233 
4752316        $264,771.84         89.83                         99         0.250                 0.017      0.233 
4752326        $274,351.29         95.00                         99         0.250                 0.017      1.108 
4752389        $247,276.26         90.00                         99         0.250                 0.017      0.000 
</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4752452     PELHAM                     NY     10803        SFD       6.875        6.250      $1,642.33        360        1-Aug-28
4753080     BRANCHBURG                 NJ     08876        SFD       7.750        6.250      $2,137.06        360        1-Aug-28
4753264     VICTOR                     NY     14564        SFD       7.000        6.250      $2,162.24        360        1-Jul-28
4753337     ALAMEDA                    CA     94501        SFD       6.625        6.250      $1,504.74        360        1-Jul-28
4753689     SILVER SPRING              MD     20910        SFD       6.875        6.250      $1,635.76        360        1-Aug-28
4753747     CARLSBAD                   CA     92008        SFD       7.000        6.250      $1,829.59        360        1-Aug-28
4753761     FRANKLIN                   TN     37067        SFD       7.125        6.250      $1,954.80        360        1-Jul-28
4753945     BAYTOWN                    MN     55082        SFD       6.750        6.250      $1,926.34        360        1-Jul-28
4754010     REDDING                    CT     06896        SFD       6.875        6.250      $1,813.13        360        1-Aug-28
4754114     PINECREST                  FL     33156        SFD       5.875        5.608      $3,549.23        360        1-Jul-28
4754302     SANTA MONICA               CA     90402        SFD       6.750        6.250      $5,383.37        360        1-Jul-28
4754836     CHESTER                    NJ     07930        SFD       6.875        6.250      $3,021.88        360        1-Jul-28
4755023     PEACHTREE CITY             GA     30269        SFD       7.125        6.250      $1,563.37        360        1-Aug-28
4755469     NANUET                     NY     10954        SFD       7.125        6.250      $1,563.03        360        1-Jul-28
4755652     CHELMSFORD                 MA     01824        SFD       6.875        6.250      $1,559.55        360        1-Jul-28
4755665     DELRAY BEACH               FL     33445        SFD       7.125        6.250      $2,243.49        360        1-Jul-28
4755859     AMHERST                    NH     03031        SFD       6.750        6.250      $1,576.10        360        1-Jul-28
4755901     NEWTOWN                    CT     06470        SFD       7.000        6.250      $2,331.22        360        1-Jul-28
4755919     CARLSBAD                   CA     92009        SFD       6.750        6.250      $2,114.43        360        1-Jul-28
4756495     RIDGEFIELD                 CT     06877        SFD       6.625        6.250      $2,049.00        360        1-Jul-28
4756583     WILDWOOD                   MO     63005        SFD       6.375        6.108      $2,280.56        360        1-Aug-28
4756600     GREENSBORO                 NC     27455        SFD       6.375        6.108      $1,809.23        360        1-Jul-28
4756707     BELLE MEAD                 NJ     08502        SFD       6.875        6.250      $1,799.99        360        1-Aug-28
4756989     VALLEY CENTER              CA     92082        SFD       6.875        6.250      $1,834.15        360        1-Jun-28
4757192     BRIDGEWATER                NJ     08807        SFD       6.625        6.250      $3,739.42        360        1-Aug-28
4758083     WILMINGTON                 DE     19807        SFD       7.125        6.250      $2,263.70        360        1-Jul-28
4758235     MCFARLAND                  WI     53558        SFD       7.000        6.250      $1,530.20        360        1-May-28
4758479     THE WOODLANDS              TX     77381        SFD       6.750        6.250      $1,554.05        360        1-Jul-28
4758501     AVON                       CT     06001        SFD       6.875        6.250      $2,299.26        360        1-Aug-28
4758608     APEX                       NC     27502        SFD       7.000        6.250      $1,919.40        360        1-Jul-28
4758652     NEW FAIRFIELD              CT     06812        SFD       7.250        6.250      $2,569.42        360        1-Jul-28
4758689     ANAHEIM HILLS              CA     92807        SFD       6.625        6.250      $2,177.06        360        1-Aug-28
4759115     ASHBURN                    VA     20147        SFD       6.750        6.250      $1,525.51        360        1-Aug-28
4759277     SKILLMAN                   NJ     08558        SFD       6.625        6.250      $1,920.94        360        1-Jul-28
4759466     WESTON                     CT     06883        SFD       6.875        6.250      $2,135.02        360        1-Jul-28
4759539     ANNANDALE                  NJ     08801        SFD       6.875        6.250      $1,933.35        360        1-Aug-28
4759568     FREEHOLD                   NJ     07728        SFD       7.375        6.250      $2,072.03        360        1-Aug-28
4759778     HUDSON                     OH     44236        SFD       6.375        6.108      $1,951.47        360        1-Aug-28
4759814     CINCINNATI                 OH     45249        SFD       6.750        6.250      $1,945.80        360        1-Aug-28
4760118     BROOMFIELD                 CO     80020        SFD       6.750        6.250      $1,751.22        360        1-Aug-28
4760331     BLOOMFIELD HILLS           MI     48304        SFD       6.625        6.250      $3,472.41        360        1-Jul-28
4760451     LAKE BLUFF                 IL     60044        SFD       6.875        6.250      $1,625.90        360        1-Jul-28
4760515     LOS ANGELES                CA     90027        SFD       7.000        6.250      $3,991.82        360        1-Jul-28
4760704     SHORT HILLS                NJ     07078        SFD       6.750        6.250      $4,215.89        360        1-Jul-28
4760827     RANDOLPH                   NJ     07869        SFD       7.000        6.250      $2,263.36        360        1-Jul-28
4760942     MADISON                    CT     06443        SFD       7.250        6.250      $1,875.99        360        1-Aug-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4752452        $250,000.00         57.41                                    0.250                 0.017      0.358 
4753080        $298,300.00         95.00                         99         0.250                 0.017      1.233 
4753264        $324,733.59         76.47                                    0.250                 0.017      0.483 
4753337        $234,792.66         78.33                                    0.250                 0.017      0.108 
4753689        $249,000.00         87.52                         99         0.250                 0.017      0.358 
4753747        $275,000.00         61.11                                    0.250                 0.017      0.483 
4753761        $289,917.97         88.08                         99         0.250                 0.017      0.608 
4753945        $296,570.63         51.65                                    0.250                 0.017      0.233 
4754010        $276,000.00         80.00                                    0.250                 0.017      0.358 
4754114        $599,388.27         48.00                                    0.250                 0.017      0.000 
4754302        $829,285.38         66.24      GD 3YR                        0.250                 0.017      0.233 
4754836        $459,613.54         80.00                                    0.250                 0.017      0.358 
4755023        $232,050.00         79.46                                    0.250                 0.017      0.608 
4755469        $231,628.94         94.69                         33         0.250                 0.017      0.608 
4755652        $237,200.55         95.00                         12         0.250                 0.017      0.358 
4755665        $332,733.70         90.00                         99         0.250                 0.017      0.608 
4755859        $242,790.78         90.00                         33         0.250                 0.017      0.233 
4755901        $350,112.78         80.00                                    0.250                 0.017      0.483 
4755919        $325,719.32         76.25      GD 5YR                        0.250                 0.017      0.233 
4756495        $319,467.67         68.09                                    0.250                 0.017      0.108 
4756583        $365,550.00         79.99                                    0.250                 0.017      0.000 
4756600        $289,731.40         60.23                                    0.250                 0.017      0.000 
4756707        $274,000.00         85.16      GD 5YR             99         0.250                 0.017      0.358 
4756989        $278,729.52         80.00                                    0.250                 0.017      0.358 
4757192        $584,000.00         80.00                                    0.250                 0.017      0.108 
4758083        $335,731.30         82.96                         99         0.250                 0.017      0.608 
4758235        $229,266.35         73.25                                    0.250                 0.017      0.483 
4758479        $239,393.70         80.00                                    0.250                 0.017      0.233 
4758501        $350,000.00         65.42                                    0.250                 0.017      0.358 
4758608        $288,263.52         92.03                         33         0.250                 0.017      0.483 
4758652        $376,356.17         90.00                         99         0.250                 0.017      0.733 
4758689        $340,000.00         80.00                                    0.250                 0.017      0.108 
4759115        $235,200.00         80.00      GD 2YR                        0.250                 0.017      0.233 
4759277        $299,735.31         44.12                                    0.250                 0.017      0.108 
4759466        $324,726.96         52.25      GD 2YR                        0.250                 0.017      0.358 
4759539        $294,300.00         79.99                                    0.250                 0.017      0.358 
4759568        $300,000.00         82.64                         17         0.250                 0.017      0.858 
4759778        $312,800.00         80.00                                    0.250                 0.017      0.000 
4759814        $300,000.00         60.62                                    0.250                 0.017      0.233 
4760118        $270,000.00         69.23                                    0.250                 0.017      0.233 
4760331        $541,821.54         80.00                                    0.250                 0.017      0.108 
4760451        $247,292.07         90.00                         99         0.250                 0.017      0.358 
4760515        $599,508.18         72.29                                    0.250                 0.017      0.483 
4760704        $649,440.36         72.76                                    0.250                 0.017      0.233 
4760827        $339,921.14         90.00      GD 4YR             99         0.250                 0.017      0.483 
4760942        $275,000.00         84.62                         33         0.250                 0.017      0.733 
</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4761183     MARTINEZ                   GA     30907        SFD       6.750        6.250      $1,608.53        360        1-Jul-28
4761257     LAGUNA NIGUEL              CA     92677        SFD       7.000        6.250      $1,796.32        360        1-Jul-28
4761560     BARRINGTON                 IL     60010        SFD       6.625        6.250      $3,137.21        360        1-Aug-28
4761563     BAINBRIDGE                 OH     44023        SFD       7.000        6.250      $2,262.03        360        1-Aug-28
4761655     ATLANTA                    GA     30350        SFD       6.750        6.250      $1,926.34        360        1-Jul-28
4761702     TIGARD                     OR     97224        SFD       6.500        6.233      $1,511.28        360        1-Jul-28
4761843     IRMO                       SC     29063        SFD       7.000        6.250      $2,192.51        360        1-Aug-28
4761927     NEW YORK                   NY     10036        HCO       6.750        6.250      $2,107.95        360        1-Aug-28
4761952     CHESTER                    NJ     07930        SFD       6.500        6.233      $2,101.00        360        1-Aug-28
4762376     LINCOLN                    MA     01773        SFD       7.125        6.250      $2,021.16        360        1-Aug-28
4762390     CHESTERFIELD               MO     63005        SFD       7.500        6.250      $2,296.92        360        1-Aug-28
4762566     SOUTHLAKE                  TX     76092        SFD       7.000        6.250      $2,840.85        360        1-Jun-28
4762648     MILL CREEK                 WA     98012        SFD       6.875        6.250      $2,154.73        360        1-Jul-28
4762714     CANTONMENT                 FL     32533        SFD       7.250        6.250      $1,637.23        360        1-Jul-28
4762739     GREAT FALLS                VA     22066        SFD       6.750        6.250      $3,632.15        360        1-Jul-28
4762768     CANTON CENTER              CT     06020        SFD       7.250        6.250      $1,980.02        360        1-Jul-28
4762887     ISSAQUAH                   WA     98029        SFD       7.000        6.250      $2,048.80        360        1-Aug-28
4763183     STAMFORD                   CT     06901        SFD       6.625        6.250      $2,597.68        240        1-Aug-18
4763189     NORMAN                     OK     73072        SFD       7.125        6.250      $2,007.69        360        1-Jul-28
4763192     NORTH WALES                PA     19454        SFD       6.875        6.250      $2,154.73        360        1-Aug-28
4763513     MIDDLETOWN                 NJ     07748        SFD       6.750        6.250      $1,720.74        360        1-Jul-28
4763670     MENDHAM                    NJ     07945        SFD       6.375        6.108      $2,495.48        360        1-Jul-28
4763673     DANVILLE                   CA     94506        SFD       6.875        6.250      $2,732.83        360        1-Jul-28
4763701     KENSINGTON                 MD     20895        SFD       6.750        6.250      $1,567.02        360        1-Jul-28
4763851     DUNWOODY                   GA     30338        SFD       6.750        6.250      $1,724.63        360        1-Jul-28
4763944     TREDYFFRIN TOWNSHIP        PA     19301        SFD       7.500        6.250      $1,950.81        360        1-Jul-28
4764174     MINNETONKA                 MN     55343        SFD       7.000        6.250      $1,990.59        360        1-Jul-28
4764219     RIDGEFIELD                 CT     06877        SFD       7.000        6.250      $1,832.81        240        1-Jul-18
4764242     BREWSTER                   NY     10509        SFD       7.250        6.250      $1,688.39        360        1-Aug-28
4764294     MORGAN HILL                CA     95037        SFD       7.000        6.250      $2,301.95        360        1-Jul-28
4764318     ALPHARETTA                 GA     30004        SFD       6.750        6.250      $2,432.25        360        1-Jul-28
4764396     CINCINNATI                 OH     45208        SFD       7.000        6.250      $3,709.73        360        1-Aug-28
4764462     RINGOES                    NJ     08551        SFD       6.625        6.250      $1,613.59        360        1-Aug-28
4764466     FOUNTAIN VALLEY            CA     92708        SFD       6.375        6.108      $1,871.61        360        1-Jul-28
4764670     DUVALL                     WA     98019        SFD       6.500        6.233      $1,617.78        360        1-Aug-28
4764753     BROOKEVILLE                MD     20833        SFD       7.125        6.250      $1,940.31        360        1-Jul-28
4765093     MORRISTOWN                 NJ     07960        SFD       6.625        6.250      $1,849.22        360        1-Aug-28
4765115     AUBURN                     WA     98092        SFD       7.250        6.250      $1,847.00        360        1-Jul-28
4765128     SUMMIT                     NJ     07901        SFD       6.875        6.250      $3,757.64        360        1-Aug-28
4765156     NIWOT                      CO     80503        SFD       6.500        6.233      $3,003.91        360        1-Jul-28
4765210     STOCKTON                   NJ     08559        SFD       6.500        6.233      $2,047.91        360        1-Aug-28
4765214     TOLEDO                     OH     43617        SFD       6.750        6.250      $1,608.53        360        1-Jul-28
4765273     CLIFTON                    VA     22024        SFD       6.750        6.250      $2,458.19        360        1-Jul-28
4765279     NAPERVILLE                 IL     60540        SFD       6.750        6.250      $2,708.87        360        1-Jul-28
4765361     KINGWOOD                   TX     77345        SFD       7.000        6.250      $2,183.53        360        1-Jul-28
4765364     MIDLOTHIAN                 VA     23112        SFD       7.125        6.250      $1,627.71        360        1-Aug-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4761183        $247,786.47         62.78                                    0.250                 0.017      0.233 
4761257        $269,778.68         56.37                                    0.250                 0.017      0.483 
4761560        $489,950.00         69.99                                    0.250                 0.017      0.108 
4761563        $340,000.00         58.17                                    0.250                 0.017      0.483 
4761655        $296,744.29         90.00                         99         0.250                 0.017      0.233 
4761702        $238,883.85         80.00                                    0.250                 0.017      0.000 
4761843        $329,550.00         75.83                                    0.250                 0.017      0.483 
4761927        $325,000.00         72.22                                    0.250                 0.017      0.233 
4761952        $332,400.00         60.00                                    0.250                 0.017      0.000 
4762376        $300,000.00         70.59                                    0.250                 0.017      0.608 
4762390        $328,500.00         90.00                         99         0.250                 0.017      0.983 
4762566        $426,297.92         70.00                                    0.250                 0.017      0.483 
4762648        $327,724.44         80.00                                    0.250                 0.017      0.358 
4762714        $239,812.77         80.00                                    0.250                 0.017      0.733 
4762739        $559,517.85         80.00                                    0.250                 0.017      0.233 
4762768        $290,023.57         90.00                         99         0.250                 0.017      0.733 
4762887        $307,950.00         70.00                                    0.250                 0.017      0.483 
4763183        $345,000.00         77.53      GD 3YR                        0.250                 0.017      0.108 
4763189        $297,761.69         79.98                                    0.250                 0.017      0.608 
4763192        $328,000.00         80.00                                    0.250                 0.017      0.358 
4763513        $265,021.57         70.00      GD 3YR                        0.250                 0.017      0.233 
4763670        $399,629.52         63.59                                    0.250                 0.017      0.000 
4763673        $415,650.50         80.00                                    0.250                 0.017      0.358 
4763701        $241,391.98         80.00                                    0.250                 0.017      0.233 
4763851        $265,671.06         69.99                                    0.250                 0.017      0.233 
4763944        $278,792.94         90.00                         11         0.250                 0.017      0.983 
4764174        $298,954.74         80.00                                    0.250                 0.017      0.483 
4764219        $235,946.19         80.00      GD 3YR                        0.250                 0.017      0.483 
4764242        $247,500.00         90.00      FG 5YR             99         0.250                 0.017      0.733 
4764294        $345,716.38         80.47      GD 3YR             11         0.250                 0.017      0.483 
4764318        $374,677.13         86.06                         06         0.250                 0.017      0.233 
4764396        $557,600.00         80.00                                    0.250                 0.017      0.483 
4764462        $252,000.00         80.00                                    0.250                 0.017      0.108 
4764466        $299,722.14         78.95                                    0.250                 0.017      0.000 
4764670        $255,950.00         79.99                                    0.250                 0.017      0.000 
4764753        $287,769.69         80.00                                    0.250                 0.017      0.608 
4765093        $288,800.00         80.00                                    0.250                 0.017      0.108 
4765115        $270,538.78         95.00                         99         0.250                 0.017      0.733 
4765128        $572,000.00         80.00                                    0.250                 0.017      0.358 
4765156        $474,820.36         69.99                                    0.250                 0.017      0.000 
4765210        $324,000.00         90.00      GD 3YR             11         0.250                 0.017      0.000 
4765214        $247,786.47         80.00                                    0.250                 0.017      0.233 
4765273        $378,673.69         65.46                                    0.250                 0.017      0.233 
4765279        $417,290.41         85.58                         99         0.250                 0.017      0.233 
4765361        $327,930.97         79.99                                    0.250                 0.017      0.483 
4765364        $241,600.00         80.00                                    0.250                 0.017      0.608 
</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4765378     SEATTLE                    WA     98166        SFD       6.750        6.250      $1,546.26        360        1-Jul-28
4765383     SCOTTSDALE                 AZ     85254        SFD       7.250        6.250      $1,568.33        360        1-Jul-28
4765412     ARLINGTON                  VA     22204        SFD       6.625        6.250      $1,972.16        360        1-Jul-28
4765479     SOUTHLAKE                  TX     76092        SFD       6.875        6.250      $2,785.38        360        1-Jul-28
4765528     TIBURON                    CA     94920        SFD       6.625        6.250      $2,833.38        360        1-Aug-28
4765604     THE WOODLANDS              TX     77380        SFD       7.125        6.250      $2,102.01        360        1-Jul-28
4765644     SUN PRAIRIE                WI     53590        SFD       7.000        6.250      $1,596.73        360        1-Jul-28
4765648     LAS VEGAS                  NV     89117        SFD       7.000        6.250      $1,706.51        360        1-Jul-28
4765697     LINDENHURST                IL     60046        SFD       7.125        6.250      $1,552.25        360        1-Jul-28
4765876     DEVON                      PA     19333        SFD       6.500        6.233      $1,991.02        360        1-Aug-28
4765886     CLOVIS                     CA     93612        SFD       6.750        6.250      $1,963.31        360        1-Aug-28
4765977     SOUTHBURY                  CT     06488        SFD       7.000        6.250      $1,658.60        360        1-Jul-28
4766125     MERRIMAC                   MA     01860        SFD       7.375        6.250      $1,623.09        360        1-Jul-28
4766164     CHAGRIN FALLS              OH     44023        SFD       6.875        6.250      $2,069.00        360        1-Jul-28
4766231     FRANKLIN PARK              NJ     08823        SFD       7.375        6.250      $1,926.99        360        1-Jul-28
4766233     STAMFORD                   CT     06902        LCO       7.250        6.250      $2,371.93        360        1-Jul-28
4766258     OAKLAND                    CA     94611        SFD       7.125        6.250      $1,910.00        360        1-Jul-28
4766300     TUCSON                     AZ     85737        SFD       6.500        6.233      $1,498.01        360        1-Jul-28
4766383     GRANADA HILLS              CA     91344        SFD       7.125        6.250      $1,773.57        360        1-Jul-28
4766420     WALNUT CREEK               CA     94595        SFD       6.750        6.250      $3,004.31        360        1-Jul-28
4766638     GREER                      SC     29650        SFD       6.625        6.250      $2,282.71        360        1-Jul-28
4766731     HINGHAM                    MA     02043        SFD       6.875        6.250      $1,602.91        360        1-Jul-28
4766816     NORTH READING              MA     01864        SFD       6.875        6.250      $1,773.71        360        1-Aug-28
4766831     LEXINGTON                  KY     40502        SFD       7.250        6.250      $2,114.75        360        1-Jul-28
4767016     HOUSTON                    TX     77056        SFD       6.875        6.250      $2,890.49        360        1-Jul-28
4767051     DARIEN                     CT     06820        SFD       6.750        6.250      $3,243.00        360        1-Aug-28
4767055     GRAFTON                    WI     53024        SFD       6.750        6.250      $1,764.19        360        1-Jul-28
4767172     KENNETT                    PA     19348        SFD       6.875        6.250      $2,268.71        360        1-Jul-28
4767326     NEWTON                     MA     02158        SFD       7.625        6.250      $1,911.05        360        1-Jul-28
4767636     VERNON HILLS               IL     60061        SFD       6.750        6.250      $1,755.76        360        1-Jul-28
4767771     MORRISVILLE                NC     27560        SFD       6.750        6.250      $1,524.21        360        1-Jul-28
4767781     NEWBURYPORT                MA     01950        LCO       7.500        6.250      $1,713.08        360        1-Aug-28
4767803     RANDOLPH                   NJ     07869        LCO       7.125        6.250      $1,664.09        360        1-Jul-28
4767805     HOPEWELL                   NJ     08525        SFD       6.750        6.250      $1,787.54        360        1-Jul-28
4767938     VALENCIA                   CA     91355        SFD       6.625        6.250      $2,417.18        360        1-Jul-28
4768010     LITTLETON                  CO     80124        SFD       7.000        6.250      $1,923.73        360        1-Aug-28
4768175     YORBA LINDA                CA     92887        SFD       7.000        6.250      $3,470.22        360        1-Jul-28
4768193     GURNEE                     IL     60031        SFD       7.250        6.250      $1,923.74        360        1-Jul-28
4768344     NEW ORLEANS                LA     70118        SFD       6.750        6.250      $2,303.83        360        1-Jul-28
4768349     SPARTA                     NJ     07871        SFD       6.875        6.250      $2,299.26        360        1-Aug-28
4768486     ROSWELL                    GA     30075        SFD       6.875        6.250      $1,689.63        360        1-May-28
4768506     WESTBOROUGH                MA     01581        SFD       6.875        6.250      $1,760.57        360        1-Jul-28
4768670     SARATOGA                   CA     95070        PUD       7.000        6.250      $1,995.91        360        1-Jul-28
4768676     PARKER                     CO     80134        SFD       6.875        6.250      $1,970.79        360        1-Jul-28
4768752     BLACKSBURG                 VA     24060        SFD       6.875        6.250      $1,622.95        360        1-Jul-28
4768796     HOUSTON                    TX     77024        SFD       7.000        6.250      $1,692.53        360        1-Aug-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4765378        $238,194.74         80.00                                    0.250                 0.017      0.233
4765383        $229,720.65         95.00                         99         0.250                 0.017      0.733
4765412        $307,728.26         80.00                                    0.250                 0.017      0.108
4765479        $423,643.79         80.00                                    0.250                 0.017      0.358
4765528        $442,500.00         75.00                                    0.250                 0.017      0.108
4765604        $311,750.49         80.00                                    0.250                 0.017      0.608
4765644        $239,803.27         80.00                                    0.250                 0.017      0.483
4765648        $256,289.74         95.00                         99         0.250                 0.017      0.483
4765697        $230,215.75         95.00                         99         0.250                 0.017      0.608
4765876        $315,000.00         51.22                                    0.250                 0.017      0.000
4765886        $302,700.00         89.99                         11         0.250                 0.017      0.233
4765977        $249,095.65         90.00                         33         0.250                 0.017      0.483
4766125        $234,821.18         89.02                         99         0.250                 0.017      0.858
4766164        $314,685.40         89.99                         99         0.250                 0.017      0.358
4766231        $278,787.70         90.00                         33         0.250                 0.017      0.858
4766233        $347,428.76         95.00                         99         0.250                 0.017      0.733
4766258        $283,273.28         90.00                         17         0.250                 0.017      0.608
4766300        $236,785.74         62.04                                    0.250                 0.017      0.000
4766383        $263,039.48         90.15                         33         0.250                 0.017      0.608
4766420        $462,801.19         80.00                                    0.250                 0.017      0.233
4766638        $356,185.47         79.84                                    0.250                 0.017      0.108
4766731        $243,795.01         80.00                                    0.250                 0.017      0.358
4766816        $270,000.00         64.29      GD 3YR                        0.250                 0.017      0.358
4766831        $309,758.17         79.49                                    0.250                 0.017      0.733
4767016        $439,630.34         62.86                                    0.250                 0.017      0.358
4767051        $500,000.00         45.87                                    0.250                 0.017      0.233
4767055        $271,765.81         74.52                                    0.250                 0.017      0.233
4767172        $345,059.86         79.99                                    0.250                 0.017      0.358
4767326        $269,804.58         60.00                                    0.250                 0.017      1.108
4767636        $270,466.93         84.99                         33         0.250                 0.017      0.233
4767771        $234,797.67         70.13                                    0.250                 0.017      0.233
4767781        $245,000.00         92.45                         99         0.250                 0.017      0.983
4767803        $246,802.47         95.00                         99         0.250                 0.017      0.608
4767805        $275,362.71         80.00      GD 4YR                        0.250                 0.017      0.233
4767938        $377,166.93         88.30                         33         0.250                 0.017      0.108
4768010        $289,150.00         80.00                                    0.250                 0.017      0.483
4768175        $521,172.45         80.00                                    0.250                 0.017      0.483
4768193        $281,780.01         94.95      GD 2YR             33         0.250                 0.017      0.733
4768344        $354,894.17         80.00                                    0.250                 0.017      0.233
4768349        $350,000.00         76.15                                    0.250                 0.017      0.358
4768486        $256,548.02         80.00                                    0.250                 0.017      0.358
4768506        $267,774.85         80.00                                    0.250                 0.017      0.358
4768670        $299,754.09         69.77                                    0.250                 0.017      0.483
4768676        $299,747.96         77.92                                    0.250                 0.017      0.358
4768752        $246,842.44         90.00                         99         0.250                 0.017      0.358
4768796        $254,400.00         80.00                                    0.250                 0.017      0.483
</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4768844     CROWNSVILLE                MD     21032        SFD       7.250        6.250      $2,038.35       360         1-Jul-28
4768868     SPARTA                     NJ     07871        SFD       6.625        6.250      $2,040.36       360         1-Jul-28
4768922     LOUISVILLE                 KY     40241        SFD       6.875        6.250      $1,543.79       360         1-Aug-28
4769119     BLACK DIAMOND              WA     98010        SFD       6.750        6.250      $2,034.98       360         1-Jul-28
4770212     FARMINGTON                 CT     06032        SFD       6.875        6.250      $3,074.43       360         1-Jul-28
4770239     ROCHESTER                  MI     48307        SFD       6.625        6.250      $1,574.85       360         1-Jul-28
4770255     SAN DIEGO                  CA     92073        SFD       6.625        6.250      $1,888.92       360         1-Jul-28
4770330     MERION STATION             PA     19066        SFD       6.500        6.233      $3,428.97       360         1-Jul-28
4770437     CLARKSON VALLEY            MO     63005        SFD       6.500        6.233      $2,528.28       360         1-Jul-28
4770447     GURNEE                     IL     60031        SFD       6.875        6.250      $2,149.48       360         1-Aug-28
4770452     SIMI VALLEY                CA     93063        SFD       7.250        6.250      $1,933.97       360         1-Jul-28
4770686     FLOWER MOUND               TX     75028        SFD       7.000        6.250      $1,995.91       360         1-Aug-28
4770700     GREAT FALLS                VA     22066        SFD       6.625        6.250      $2,465.20       360         1-Jul-28
4770747     BRANCHBURG                 NJ     08876        SFD       6.750        6.250      $1,621.50       360         1-Jul-28
4770748     SHELTON                    CT     06484        SFD       6.875        6.250      $1,946.16       360         1-Jul-28
4770819     RIVERSIDE                  CA     92506        SFD       7.500        6.250      $2,301.47       360         1-Jul-28
4770858     CUMMING                    GA     30040        SFD       7.125        6.250      $1,674.20       360         1-Jul-28
4770910     MIDLAND                    MI     48640        SFD       7.000        6.250      $2,179.54       360         1-Jul-28
4770926     WATSONVILLE                CA     95076        SFD       7.000        6.250      $2,874.11       360         1-Jul-28
4771082     MANSFIELD                  MA     02048        SFD       7.125        6.250      $2,058.89       360         1-Jul-28
4771094     WEST UNIVERSITY PLAC       TX     77005        SFD       7.250        6.250      $2,376.02       360         1-Jul-28
4771098     ANNANDALE                  NJ     08801        SFD       6.750        6.250      $2,046.33       360         1-Aug-28
4771128     ALEXANDRIA                 VA     22314        SFD       6.875        6.250      $1,806.56       360         1-Jul-28
4771204     UPPER SADDLE RIVER         NJ     07458        SFD       7.000        6.250      $2,528.15       360         1-Aug-28
4771243     ROUND ROCK                 TX     78664        SFD       6.750        6.250      $1,539.78       360         1-Jul-28
4771290     ORLANDO                    FL     32835        SFD       6.625        6.250      $1,753.82       360         1-Jul-28
4771301     LIVERMORE                  CA     94550        SFD       7.875        6.250      $1,885.19       360         1-Jul-28
4771359     MARIETTA                   GA     30068        SFD       7.125        6.250      $1,987.47       360         1-Aug-28
4771419     BASKING RIDGE              NJ     07920        SFD       6.750        6.250      $1,746.68       360         1-Jul-28
4771438     LAFAYETTE                  LA     70503        SFD       7.125        6.250      $1,600.09       360         1-Jul-28
4771559     PLANO                      TX     75025        SFD       6.375        6.108      $1,921.52       360         1-Aug-28
4771616     BOXFORD                    MA     01921        SFD       6.875        6.250      $2,254.58       360         1-Jul-28
4771742     LEXINGTON                  MA     02013        SFD       7.500        6.250      $2,971.67       360         1-Jul-28
4771750     BOSTON                     MA     02111        LCO       7.000        6.250      $2,128.97       360         1-Jul-28
4771810     COLLEYVILLE                TX     76034        SFD       6.875        6.250      $2,165.24       360         1-Jul-28
4771939     SARASOTA                   FL     34241        SFD       6.875        6.250      $2,364.95       360         1-Jul-28
4772007     NEW YORK                   NY     10280        HCO       7.000        6.250      $2,361.83       360         1-Aug-28
4772008     RENTON                     WA     98059        SFD       6.875        6.250      $2,101.85       360         1-Aug-28
4772037     DANVILLE                   CA     94526        SFD       7.000        6.250      $2,188.85       360         1-Jul-28
4772071     ALPHARETTA                 GA     30004        SFD       6.625        6.250      $1,991.37       360         1-Jul-28
4772145     CHAMPLIN                   MN     55316        SFD       7.250        6.250      $1,879.40       360         1-Jul-28
4772212     RESTON                     VA     22094        SFD       6.625        6.250      $1,792.88       360         1-Jul-28
4772537     SUGAR LAND                 TX     77479        SFD       6.375        6.108      $3,793.13       360         1-Jul-28
4772731     APPLE VALLEY               MN     55124        SFD       6.625        6.250      $1,716.04       360         1-Jul-28
4772898     NORTH BARRINGTON           IL     60010        SFD       6.875        6.250      $5,183.83       360         1-Aug-28
4772918     SAINT CHARLES              IL     60174        SFD       6.875        6.250      $1,846.30       360         1-Jul-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4768844        $298,566.90         90.00                         06         0.250                 0.017      0.733 
4768868        $318,368.85         74.99                                    0.250                 0.017      0.108 
4768922        $235,000.00         75.90                                    0.250                 0.017      0.358 
4769119        $313,479.86         79.99                                    0.250                 0.017      0.233 
4770212        $467,459.30         80.00                                    0.250                 0.017      0.358 
4770239        $245,733.00         79.98                                    0.250                 0.017      0.108 
4770255        $294,739.73         74.68                                    0.250                 0.017      0.108 
4770330        $542,009.57         70.00                                    0.250                 0.017      0.000 
4770437        $399,638.39         63.49                                    0.250                 0.017      0.000 
4770447        $327,200.00         80.00                                    0.250                 0.017      0.358 
4770452        $283,278.84         90.00                         99         0.250                 0.017      0.733 
4770686        $300,000.00         75.95                                    0.250                 0.017      0.483 
4770700        $384,660.32         79.38                                    0.250                 0.017      0.108 
4770747        $249,784.75         78.37                                    0.250                 0.017      0.233 
4770748        $296,001.11         85.00                         11         0.250                 0.017      0.358 
4770819        $328,905.72         94.99                         99         0.250                 0.017      0.983 
4770858        $248,275.47         79.66                                    0.250                 0.017      0.608 
4770910        $327,331.46         70.00      GD 4YR                        0.250                 0.017      0.483 
4770926        $431,645.89         80.00                                    0.250                 0.017      0.483 
4771082        $305,355.61         75.16                                    0.250                 0.017      0.608 
4771094        $348,028.29         90.00                         99         0.250                 0.017      0.733 
4771098        $315,500.00         79.89      GD 5YR                        0.250                 0.017      0.233 
4771128        $274,768.96         58.89                                    0.250                 0.017      0.358 
4771204        $380,000.00         86.36                         99         0.250                 0.017      0.483 
4771243        $237,195.60         92.23                         06         0.250                 0.017      0.233 
4771290        $273,658.34         79.99                                    0.250                 0.017      0.108 
4771301        $259,821.06         94.48      GD 8YR             99         0.250                 0.017      1.358 
4771359        $295,000.00         86.51                         99         0.250                 0.017      0.608 
4771419        $269,068.13         79.98                                    0.250                 0.017      0.233 
4771438        $237,310.07         72.52                                    0.250                 0.017      0.608 
4771559        $308,000.00         69.40                                    0.250                 0.017      0.000 
4771616        $342,911.67         80.00                                    0.250                 0.017      0.358 
4771742        $424,684.58         78.70                                    0.250                 0.017      0.983 
4771750        $319,737.70         80.00                                    0.250                 0.017      0.483 
4771810        $329,323.09         80.00                                    0.250                 0.017      0.358 
4771939        $359,697.55         86.75                         99         0.250                 0.017      0.358 
4772007        $355,000.00         77.17                                    0.250                 0.017      0.483 
4772008        $319,950.00         80.00                                    0.250                 0.017      0.358 
4772037        $328,730.32         74.94                                    0.250                 0.017      0.483 
4772071        $310,725.61         69.97                                    0.250                 0.017      0.108 
4772145        $275,285.08         95.00                         99         0.250                 0.017      0.733 
4772212        $279,752.95         72.16                                    0.250                 0.017      0.108 
4772537        $607,436.87         80.00                                    0.250                 0.017      0.000 
4772731        $267,763.54         80.00                                    0.250                 0.017      0.108 
4772898        $789,100.00         75.00                                    0.250                 0.017      0.358 
4772918        $280,813.88         70.00                                    0.250                 0.017      0.358 
</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4773012     SOUTHLAKE                  TX     76092        SFD       7.125        6.250      $1,731.46        360        1-Jun-28
4773052     RICHMOND                   TX     77469        SFD       6.750        6.250      $1,546.91        360        1-Jul-28
4773054     GREEN BAY                  WI     54311        SFD       7.000        6.250      $1,862.85        360        1-Jul-28
4773079     LONG VALLEY                NJ     07853        SFD       6.750        6.250      $1,621.50        360        1-Jul-28
4773193     SAN DIEGO                  CA     92130        SFD       7.125        6.250      $2,479.29        360        1-Jul-28
4773221     SOUTHLAKE                  TX     76092        SFD       7.125        6.250      $2,021.16        360        1-Aug-28
4773282     SUGAR LAND                 TX     77479        SFD       6.875        6.250      $1,770.43        360        1-Aug-28
4773345     MORRIS PLAINS              NJ     07950        SFD       7.125        6.250      $1,664.09        360        1-Aug-28
4773413     CHARLOTTE                  NC     28226        SFD       7.250        6.250      $2,481.42        360        1-Jul-28
4773464     HOUSTON                    TX     77019        THS       6.375        6.108      $1,657.00        360        1-Jul-28
4773533     ANCHORAGE                  AK     99516        SFD       7.250        6.250      $2,569.42        360        1-Jul-28
4773558     LODI                       WI     53555        SFD       6.625        6.250      $1,677.62        360        1-Aug-28
4773762     WILMETTE                   IL     60091        SFD       6.875        6.250      $2,890.49        360        1-Aug-28
4773798     RICHARDSON                 TX     75082        SFD       7.125        6.250      $1,770.54        360        1-Aug-28
4773835     SANTA CLARA                CA     95054        SFD       7.000        6.250      $2,120.66        360        1-Jul-28
4774066     NAPERVILLE                 IL     60565        SFD       6.875        6.250      $1,734.30        360        1-Aug-28
4774088     OAK BROOK                  IL     60521        SFD       6.625        6.250      $3,329.62        360        1-Jul-28
4774308     EDEN PRAIRIE               MN     55347        SFD       7.000        6.250      $2,431.69        360        1-Jul-28
4774347     CHESTERFIELD               MO     63005        SFD       6.750        6.250      $1,963.96        360        1-Jul-28
4774559     AUSTIN                     TX     78750        SFD       6.750        6.250      $2,075.52        360        1-Jul-28
4774689     CHESTER                    NJ     07930        SFD       6.750        6.250      $3,398.66        360        1-Jul-28
4774707     FLEMINGTON                 NJ     08822        SFD       6.625        6.250      $1,895.33        360        1-Aug-28
4774787     ORONO                      MN     55391        SFD       7.000        6.250      $2,827.54        360        1-Aug-28
4774796     DALLAS                     GA     30132        SFD       7.500        6.250      $1,660.64        360        1-Aug-28
4774948     LAKE FOREST                IL     60045        SFD       6.500        6.233      $3,210.91        360        1-Jul-28
4775355     ASHBURN                    VA     20147        SFD       6.625        6.250      $1,600.78        360        1-Jul-28
4775401     BRANCHBURG                 NJ     08876        SFD       6.625        6.250      $1,719.24        360        1-Aug-28
4775468     ISSAQUAH                   WA     98029        SFD       6.625        6.250      $2,247.18        360        1-Aug-28
4775529     SEATTLE                    WA     98177        SFD       6.750        6.250      $1,646.15        360        1-Jul-28
4775552     MONTVALE                   NJ     07645        SFD       6.750        6.250      $2,069.03        360        1-Aug-28
4775576     FOUNTAIN VALLEY            CA     92708        SFD       7.375        6.250      $2,393.19        360        1-Aug-28
4775595     MARLBOROUGH                MA     01752        SFD       7.625        6.250      $1,748.26        360        1-Jul-28
4775620     MARIETTA                   GA     30064        SFD       7.125        6.250        $782.82        240        1-Jun-18
4775771     YORBA LINDA                CA     92887        SFD       6.500        6.233      $1,900.63        360        1-Aug-28
4775960     BERWIN                     PA     19312        SFD       6.875        6.250      $2,154.73        360        1-Jul-28
4776035     LEWISVILLE                 NC     27023        SFD       7.000        6.250      $1,663.26        360        1-Jul-28
4776108     CHARLOTTE                  NC     28277        SFD       6.500        6.233      $2,022.62        360        1-Aug-28
4776117     ALPHARETTA                 GA     30201        SFD       6.625        6.250      $2,023.07        360        1-Aug-28
4776163     OMAHA                      NE     68135        SFD       6.750        6.250      $1,591.66        360        1-Jul-28
4776201     ROCHESTER                  NY     14610        SFD       6.625        6.250      $2,177.06        360        1-Aug-28
4776248     NAPERVILLE                 IL     60564        SFD       6.750        6.250      $1,576.10        360        1-Jul-28
4776386     MADISON                    CT     06443        SFD       6.625        6.250      $1,600.78        360        1-Aug-28
4776427     PHOENIX                    AZ     85048        SFD       7.375        6.250      $1,709.43        360        1-Jul-28
4776631     LOS ANGELES                CA     90064        SFD       7.000        6.250      $2,696.48        360        1-Aug-28
4776826     LOS ALAMITOS               CA     90720        SFD       7.000        6.250      $2,528.15        360        1-Aug-28
4776839     NORTH BEND                 WA     98045        SFD       6.750        6.250      $1,635.12        360        1-Aug-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4773012        $256,587.74         69.09                                    0.250                 0.017      0.608
4773052        $238,294.65         90.00                         99         0.250                 0.017      0.233
4773054        $279,770.48         76.71                                    0.250                 0.017      0.483
4773079        $249,784.75         55.57      GD 3YR                        0.250                 0.017      0.233
4773193        $367,705.71         85.58      FX30YR             99         0.250                 0.017      0.608
4773221        $300,000.00         80.00                                    0.250                 0.017      0.608
4773282        $269,500.00         70.00                                    0.250                 0.017      0.358
4773345        $247,000.00         95.00                         99         0.250                 0.017      0.608
4773413        $363,466.24         89.81                         99         0.250                 0.017      0.733
4773464        $265,354.00         80.00                                    0.250                 0.017      0.000
4773533        $376,356.18         89.98                         17         0.250                 0.017      0.733
4773558        $262,000.00         60.12                                    0.250                 0.017      0.108
4773762        $440,000.00         78.57                                    0.250                 0.017      0.358
4773798        $262,800.00         88.82                         11         0.250                 0.017      0.608
4773835        $318,488.71         80.00                                    0.250                 0.017      0.483
4774066        $264,000.00         80.00                                    0.250                 0.017      0.358
4774088        $519,541.21         80.00                                    0.250                 0.017      0.108
4774308        $365,200.39         79.46                                    0.250                 0.017      0.483
4774347        $302,539.29         80.00                                    0.250                 0.017      0.233
4774559        $319,724.48         80.00                                    0.250                 0.017      0.233
4774689        $523,548.84         80.00                                    0.250                 0.017      0.233
4774707        $296,000.00         80.00                                    0.250                 0.017      0.108
4774787        $425,000.00         54.84                                    0.250                 0.017      0.483
4774796        $237,500.00         95.00                         99         0.250                 0.017      0.983
4774948        $507,540.76         80.00                                    0.250                 0.017      0.000
4775355        $249,779.43         71.43                                    0.250                 0.017      0.108
4775401        $268,500.00         72.86      GD 5YR                        0.250                 0.017      0.108
4775468        $350,950.00         77.82                                    0.250                 0.017      0.108
4775529        $253,581.48         90.00      GD 4YR             11         0.250                 0.017      0.233
4775552        $319,000.00         79.95                                    0.250                 0.017      0.233
4775576        $346,500.00         90.00                         99         0.250                 0.017      0.858
4775595        $246,821.22         95.00                         12         0.250                 0.017      1.108
4775620        $99,620.74          66.01                                    0.250                 0.017      0.608
4775771        $300,700.00         57.20                                    0.250                 0.017      0.000
4775960        $327,724.44         80.00                                    0.250                 0.017      0.358
4776035        $249,795.07         89.29                         06         0.250                 0.017      0.483
4776108        $320,000.00         74.42                                    0.250                 0.017      0.000
4776117        $315,950.00         69.99                                    0.250                 0.017      0.108
4776163        $245,188.72         89.98                         99         0.250                 0.017      0.233
4776201        $340,000.00         80.00                                    0.250                 0.017      0.108
4776248        $242,690.78         90.00                         01         0.250                 0.017      0.233
4776386        $250,000.00         65.27                                    0.250                 0.017      0.108
4776427        $247,311.66         90.00                         99         0.250                 0.017      0.858
4776631        $405,300.00         70.00                                    0.250                 0.017      0.483
4776826        $380,000.00         80.00                                    0.250                 0.017      0.483
4776839        $252,100.00         87.83                         06         0.250                 0.017      0.233

</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4776845     KALAMAZOO                  MI     49009        SFD       6.625        6.250      $2,407.57        360        1-Jul-28
4776979     SCOTTSDALE                 AZ     85260        SFD       6.750        6.250      $1,893.91        360        1-Jul-28
4777009     STAMFORD                   CT     06903        SFD       6.750        6.250      $2,788.98        360        1-Jul-28
4777111     PALM BEACH GARDENS         FL     33403        SFD       6.750        6.250      $3,891.59        360        1-Aug-28
4777127     WILMINGTON                 NC     28405        SFD       6.875        6.250      $1,983.93        360        1-Aug-28
4777229     DAYTON                     NJ     08810        SFD       6.750        6.250      $1,509.94        360        1-Aug-28
4777302     FAIR OAKS RANCH            TX     78015        SFD       6.750        6.250      $1,621.50        360        1-Jul-28
4777430     WESTPORT                   CT     06880        SFD       6.750        6.250      $6,485.99        360        1-Jul-28
4777510     LAKE BARRINGTON            IL     60010        SFD       7.125        6.250      $2,651.76        360        1-Jul-28
4777526     ANDOVER                    NJ     07821        SFD       6.750        6.250      $1,605.29        360        1-Aug-28
4777700     APEX                       NC     27502        SFD       7.125        6.250      $1,620.30        360        1-Jul-28
4777760     MADISON                    NJ     07940        SFD       6.875        6.250      $3,613.11        360        1-Jun-28
4777814     EXETER                     NH     03833        SFD       7.250        6.250      $1,710.90        360        1-Jul-28
4777847     DANVILLE                   CA     94526        SFD       6.875        6.250      $2,172.80        360        1-Aug-28
4777929     MANDEVILLE                 LA     70448        SFD       7.250        6.250      $1,780.48        360        1-Aug-28
4777957     MARSHFIELD                 MA     02051        SFD       6.375        6.108      $2,320.80        360        1-Aug-28
4777973     ALPHARETTA                 GA     30201        SFD       6.625        6.250      $1,920.94        360        1-Jul-28
4778026     SIMI VALLEY                CA     93065        SFD       6.875        6.250      $1,938.93        360        1-Aug-28
4778246     FAIRVIEW                   TX     75069        SFD       7.125        6.250      $2,079.77        360        1-Jun-28
4778279     ATLANTA                    GA     30338        SFD       7.250        6.250      $1,959.56        360        1-Jul-28
4778389     THE WOODLANDS              TX     77382        SFD       6.875        6.250      $2,031.23        360        1-Jul-28
4778525     MORRIS TOWNSHIP            NJ     07960        LCO       7.000        6.250      $1,663.26        360        1-Jul-28
4778530     SANDY                      UT     84070        SFD       6.875        6.250      $1,821.01        360        1-Jul-28
4778587     ALISO VIEJO                CA     92656        PUD       6.875        6.250      $1,629.19        360        1-Jul-28
4778918     BOISE                      ID     83707        SFD       7.125        6.250      $1,555.62        360        1-Aug-28
4779141     NAPERVILLE                 IL     60564        SFD       6.875        6.250      $1,688.31        360        1-Jul-28
4779193     WINDHAM                    NH     03087        SFD       7.000        6.250      $1,712.49        360        1-Jul-28
4779415     YORBA LINDA                CA     92887        SFD       6.750        6.250      $2,386.85        360        1-Jul-28
4779496     INDIANAPOLIS               IN     46236        SFD       7.125        6.250      $2,091.90        360        1-Jul-28
4779568     REDDING                    CT     06896        SFD       7.375        6.250      $2,693.64        360        1-Jul-28
4779602     MILFORD                    CT     06460        SFD       6.750        6.250      $1,810.89        360        1-Jul-28
4779650     SAN JOSE                   CA     95125        SFD       6.875        6.250      $2,010.21        360        1-Jul-28
4779683     MANHATTAN BEACH            CA     90266        SFD       6.625        6.250      $3,428.87        360        1-Aug-28
4779760     THE WOODLANDS              TX     77381        SFD       7.125        6.250      $1,688.34        360        1-Jul-28
4779768     UPLAND                     CA     91784        SFD       6.500        6.233      $1,592.82        360        1-Aug-28
4779820     MANSFIELD                  TX     76063        SFD       6.875        6.250      $1,643.31        360        1-Aug-28
4779860     WILMINGTON                 NC     28405        SFD       7.125        6.250      $2,122.22        360        1-Jul-28
4779872     FAIRFIELD                  CT     06430        SFD       6.625        6.250      $1,613.59        360        1-Jul-28
4779990     SAN JOSE                   CA     95125        SFD       6.750        6.250      $2,399.82        360        1-Aug-28
4780046     ALPHARETTA                 GA     30022        SFD       6.875        6.250      $2,059.48        360        1-Jul-28
4780064     NORTH OAKS                 MN     55127        SFD       6.500        6.233      $2,212.24        360        1-Aug-28
4780083     TUALATIN                   OR     97062        SFD       7.500        6.250      $1,762.03        360        1-Jul-28
4780181     GARDENERVILLE              NV     89449        SFD       7.125        6.250      $1,638.49        360        1-Jul-28
4780251     ALPHARETTA                 GA     30005        SFD       7.000        6.250      $2,049.14        360        1-Jul-28
4780259     SALEM                      NH     03079        SFD       7.125        6.250      $1,670.49        360        1-Jul-28
4780315     ANNANDALE                  VA     22003        SFD       6.875        6.250      $2,233.56        360        1-Jul-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4776845        $375,668.26         80.00                                    0.250                 0.017      0.108
4776979        $291,748.59         80.00                                    0.250                 0.017      0.233
4777009        $429,629.77         80.00                                    0.250                 0.017      0.233
4777111        $600,000.00         67.56                                    0.250                 0.017      0.233
4777127        $302,000.00         80.00                                    0.250                 0.017      0.358
4777229        $232,800.00         80.00                                    0.250                 0.017      0.233
4777302        $249,784.75         76.73                                    0.250                 0.017      0.233
4777430        $999,139.01         65.57                                    0.250                 0.017      0.233
4777510        $393,285.24         80.00                                    0.250                 0.017      0.608
4777526        $247,500.00         90.00                         99         0.250                 0.017      0.233
4777700        $240,307.67         84.83                         11         0.250                 0.017      0.608
4777760        $549,073.21         65.09                                    0.250                 0.017      0.358
4777814        $250,604.35         80.00                                    0.250                 0.017      0.733
4777847        $330,750.00         90.00      GD 7YR             11         0.250                 0.017      0.358
4777929        $261,000.00         90.00                         11         0.250                 0.017      0.733
4777957        $372,000.00         80.00                                    0.250                 0.017      0.000
4777973        $299,735.31         74.07                                    0.250                 0.017      0.108
4778026        $295,150.00         80.00                                    0.250                 0.017      0.358
4778246        $308,204.80         79.99                                    0.250                 0.017      0.608
4778279        $287,025.91         89.99                         99         0.250                 0.017      0.733
4778389        $308,940.23         80.00                                    0.250                 0.017      0.358
4778525        $249,795.07         86.21                         99         0.250                 0.017      0.483
4778530        $276,967.12         80.00                                    0.250                 0.017      0.358
4778587        $247,791.64         80.00                                    0.250                 0.017      0.358
4778918        $230,900.00         92.39                         99         0.250                 0.017      0.608
4779141        $256,784.09         94.99                         06         0.250                 0.017      0.358
4779193        $257,189.01         77.44                                    0.250                 0.017      0.483
4779415        $367,683.15         80.00                                    0.250                 0.017      0.233
4779496        $310,251.69         90.00                         33         0.250                 0.017      0.608
4779568        $389,703.23         80.00                                    0.250                 0.017      0.858
4779602        $278,959.61         80.00                                    0.250                 0.017      0.233
4779650        $305,742.92         90.00                         99         0.250                 0.017      0.358
4779683        $535,500.00         70.00                                    0.250                 0.017      0.108
4779760        $250,399.60         89.99                         99         0.250                 0.017      0.608
4779768        $252,000.00         86.90                         11         0.250                 0.017      0.000
4779820        $250,150.00         80.00                                    0.250                 0.017      0.358
4779860        $314,748.09         75.90                                    0.250                 0.017      0.608
4779872        $251,777.66         80.00                                    0.250                 0.017      0.108
4779990        $370,000.00         80.00                                    0.250                 0.017      0.233
4780046        $313,236.61         79.99                                    0.250                 0.017      0.358
4780064        $350,000.00         64.81                                    0.250                 0.017      0.000
4780083        $251,812.97         90.00                         99         0.250                 0.017      0.983
4780181        $243,005.51         95.00                         06         0.250                 0.017      0.608
4780251        $307,747.53         80.00                                    0.250                 0.017      0.483
4780259        $247,751.71         90.00                         99         0.250                 0.017      0.608
4780315        $339,714.36         80.00                                    0.250                 0.017      0.358

</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4780354     COLLIERVILLE               TN     38017        SFD       7.000        6.250      $1,727.13        360        1-Jul-28
4780396     MCLEAN                     VA     22101        LCO       6.750        6.250      $2,529.54        360        1-Aug-28
4780399     ROSWELL                    GA     30075        SFD       7.375        6.250      $1,805.78        360        1-Aug-28
4780404     WELLESLEY                  MA     02181        SFD       7.500        6.250      $2,237.49        360        1-Jul-28
4780446     DULUTH                     MN     55804        SFD       6.750        6.250      $1,816.08        360        1-Aug-28
4780453     SCOTTS VALLEY              CA     95066        SFD       7.000        6.250      $1,966.64        360        1-Jul-28
4780504     LAKE CHARLES               LA     70605        SFD       7.000        6.250      $1,663.26        360        1-Jul-28
4780519     SOUTHLAKE                  TX     76092        SFD       6.625        6.250      $1,472.72        360        1-Jul-28
4780558     CARNATION                  WA     98014        SFD       6.500        6.233      $1,485.36        360        1-Aug-28
4780622     SCOTTSDALE                 AZ     85258        SFD       7.125        6.250      $2,692.91        240        1-Jul-18
4780670     MILWAUKEE                  WI     53211        SFD       7.375        6.250      $2,034.04        360        1-Aug-28
4780721     GAITHERSBURG               MD     20872        SFD       7.125        6.250      $1,929.53        360        1-Jul-28
4780830     HILLSDALE                  NJ     07642        SFD       6.875        6.250      $1,979.99        360        1-Aug-28
4780908     HINSDALE                   IL     60521        SFD       6.500        6.233      $3,381.57        360        1-Aug-28
4780980     STAMFORD                   CT     06903        SFD       6.750        6.250      $2,594.40        360        1-Aug-28
4781099     PLEASANT HILL              CA     94523        SFD       7.000        6.250      $1,694.53        360        1-Aug-28
4781120     WESTFIELD                  NJ     07090        SFD       6.875        6.250      $2,312.39        360        1-Aug-28
4781219     ATLANTA                    GA     30305        SFD       6.875        6.250      $1,786.85        360        1-Jul-28
4781220     CORONA DEL MAR             CA     92625        SFD       6.375        6.108      $5,614.83        360        1-Jul-28
4781273     COMMERCE                   MI     48382        SFD       6.500        6.233      $2,149.04        360        1-Aug-28
4781398     CINCINNATI                 OH     45241        SFD       6.750        6.250      $2,905.72        360        1-Jul-28
4781420     FREMONT                    CA     94539        SFD       6.875        6.250      $2,832.68        360        1-Aug-28
4781516     DANVILLE                   CA     94506        SFD       6.625        6.250      $2,714.92        360        1-Jul-28
4781540     GURNEE                     IL     60031        SFD       6.875        6.250      $2,003.64        360        1-Aug-28
4781595     LAKE FOREST                IL     60045        SFD       7.000        6.250      $2,428.36        360        1-Jul-28
4781639     WARWICK                    NY     10990        SFD       6.375        6.108      $1,653.26        360        1-Aug-28
4781657     NAPA                       CA     94558        SFD       6.875        6.250      $2,522.61        360        1-Jul-28
4781730     PLANO                      TX     75093        SFD       7.000        6.250      $1,751.08        360        1-Jul-28
4781745     SKILLMAN                   NJ     08558        SFD       6.500        6.233      $3,128.74        360        1-Aug-28
4781789     CHANTILLY                  VA     22021        SFD       6.750        6.250      $1,697.39        360        1-Jul-28
4781790     NEW FAIRFIELD              CT     06812        SFD       6.625        6.250      $1,472.72        360        1-Aug-28
4781793     PORTLAND                   OR     97229        SFD       7.375        6.250      $1,862.07        360        1-Jul-28
4781856     NOVI                       MI     48374        LCO       7.000        6.250      $1,862.85        360        1-Jul-28
4781870     RANCHO SANTA MARGARI       CA     92688        SFD       6.750        6.250      $1,660.42        360        1-Jul-28
4781905     NAPERVILLE                 IL     60540        SFD       6.750        6.250      $2,853.84        360        1-Aug-28
4782096     RIVER VALE                 NJ     07675        SFD       7.000        6.250      $2,368.48        360        1-Aug-28
4782197     MEQUON                     WI     53092        SFD       7.000        6.250      $1,729.79        360        1-Aug-28
4782234     PACIFIC PALISADES          CA     90272        SFD       7.250        6.250      $2,974.29        360        1-Jul-28
4782301     WOODCLIFF LAKE             NJ     07675        SFD       7.875        6.250      $2,871.28        360        1-Aug-28
4782334     PARK CITY                  UT     84060        SFD       7.000        6.250      $1,829.59        360        1-Aug-28
4782585     ATLANTA                    GA     30327        SFD       7.125        6.250      $3,594.97        360        1-Jul-28
4782673     MASON                      OH     45040        SFD       7.000        6.250      $2,262.03        360        1-Jul-28
4782802     BERKELEY HEIGHTS           NJ     07922        SFD       6.750        6.250      $1,618.91        360        1-Aug-28
4782862     DEERFIELD                  IL     60015        SFD       7.000        6.250      $1,862.85        360        1-Aug-28
4782947     IPSWICH                    MA     01938        SFD       7.000        6.250      $2,953.95        360        1-Jul-28
4782957     ACWORTH                    GA     30101        SFD       7.375        6.250      $1,795.07        360        1-Jul-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4780354        $259,173.17         80.00                                    0.250                 0.017      0.483 
4780396        $390,000.00         79.59                                    0.250                 0.017      0.233 
4780399        $261,450.00         90.00                         12         0.250                 0.017      0.858 
4780404        $319,762.51         59.68                                    0.250                 0.017      0.983 
4780446        $280,000.00         80.00                                    0.250                 0.017      0.233 
4780453        $295,357.69         80.00                                    0.250                 0.017      0.483 
4780504        $249,795.07         65.62                                    0.250                 0.017      0.483 
4780519        $229,697.07         72.78                                    0.250                 0.017      0.108 
4780558        $235,000.00         83.94                         33         0.250                 0.017      0.000 
4780622        $343,338.23         80.00                                    0.250                 0.017      0.608 
4780670        $294,500.00         95.00                         99         0.250                 0.017      0.858 
4780721        $286,170.97         80.00                                    0.250                 0.017      0.608 
4780830        $301,400.00         90.00                         99         0.250                 0.017      0.358 
4780908        $535,000.00         78.16                                    0.250                 0.017      0.000 
4780980        $400,000.00         68.38                                    0.250                 0.017      0.233 
4781099        $254,700.00         90.00                         99         0.250                 0.017      0.483 
4781120        $352,000.00         80.00                                    0.250                 0.017      0.358 
4781219        $271,771.48         80.00                                    0.250                 0.017      0.358 
4781220        $899,166.42         73.47                                    0.250                 0.017      0.000 
4781273        $340,000.00         75.22                                    0.250                 0.017      0.000 
4781398        $447,614.28         80.00                                    0.250                 0.017      0.233 
4781420        $431,200.00         80.00                                    0.250                 0.017      0.358 
4781516        $423,625.91         80.00                                    0.250                 0.017      0.108 
4781540        $305,000.00         75.31                                    0.250                 0.017      0.358 
4781595        $364,700.81         72.28                                    0.250                 0.017      0.483 
4781639        $265,000.00         79.87                                    0.250                 0.017      0.000 
4781657        $383,677.39         80.00                                    0.250                 0.017      0.358 
4781730        $262,984.25         79.78                                    0.250                 0.017      0.483 
4781745        $495,000.00         63.06                                    0.250                 0.017      0.000 
4781789        $261,474.67         95.00                         06         0.250                 0.017      0.233 
4781790        $230,000.00         47.42      GD 3YR                        0.250                 0.017      0.108 
4781793        $269,394.85         80.00                                    0.250                 0.017      0.858 
4781856        $279,770.48         71.79                                    0.250                 0.017      0.483 
4781870        $255,779.58         80.00                                    0.250                 0.017      0.233 
4781905        $440,000.00         80.00                                    0.250                 0.017      0.233 
4782096        $356,000.00         74.79                                    0.250                 0.017      0.483 
4782197        $260,000.00         68.42                                    0.250                 0.017      0.483 
4782234        $435,659.88         89.90                         17         0.250                 0.017      0.733 
4782301        $396,000.00         90.00                         99         0.250                 0.017      1.358 
4782334        $275,000.00         67.24                                    0.250                 0.017      0.483 
4782585        $533,173.28         80.00                                    0.250                 0.017      0.608 
4782673        $339,721.30         80.00                                    0.250                 0.017      0.483 
4782802        $249,600.00         80.00                                    0.250                 0.017      0.233 
4782862        $280,000.00         62.22                                    0.250                 0.017      0.483 
4782947        $443,636.05         80.00                                    0.250                 0.017      0.483 
4782957        $259,702.23         89.65                         99         0.250                 0.017      0.858 
</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4783139     MAPLE GROVE                MN     55311        SFD       7.375        6.250      $1,899.36        360        1-Aug-28
4783194     FAIRFIELD                  CA     94533        SFD       6.625        6.250      $3,004.98        360        1-Jul-28
4783211     NEWTOWN                    PA     18940        SFD       6.875        6.250      $2,299.26        360        1-Aug-28
4783238     FLOWER MOUND               TX     75028        SFD       6.750        6.250      $2,384.25        360        1-Jul-28
4783250     MILL CREEK                 WA     98012        SFD       6.750        6.250      $1,716.20        360        1-Aug-28
4783271     PLANO                      TX     75093        SFD       7.250        6.250      $2,233.79        360        1-Aug-28
4783311     LOUISVILLE                 KY     40245        SFD       7.250        6.250      $1,829.60        360        1-Aug-28
4783406     COTO DE CAZA               CA     92679        SFD       6.375        6.108      $2,542.27        360        1-Aug-28
4783432     LAKE FOREST                IL     60045        SFD       6.625        6.250      $2,333.94        360        1-Jul-28
4783468     FAYETTEVILLE               NY     13066        SFD       7.000        6.250      $2,136.96        360        1-Aug-28
4783580     WESTFORD                   MA     01886        SFD       6.750        6.250      $2,453.33        360        1-Aug-28
4783587     NAPERVILLE                 IL     60564        SFD       6.750        6.250      $2,296.04        360        1-Jul-28
4783595     FLOWER MOUND               TX     75028        SFD       6.625        6.250      $1,899.17        360        1-Aug-28
4783610     NEWCASTLE                  WA     98059        SFD       6.750        6.250      $1,738.25        360        1-Aug-28
4783616     LOUISVILLE                 KY     40245        SFD       6.625        6.250      $1,728.84        360        1-Jul-28
4783735     OLATHE                     KS     66061        SFD       7.000        6.250      $1,852.87        360        1-Jul-28
4783736     DOWNINGTOWN                PA     19335        SFD       7.250        6.250      $2,210.26        360        1-Aug-28
4783737     LIBERTYVILLE               IL     60048        SFD       6.875        6.250      $2,644.14        360        1-Aug-28
4783741     ALPHARETTA                 GA     30022        SFD       7.000        6.250      $1,898.11        360        1-Jul-28
4783750     COPPER CANYON              TX     75067        SFD       6.875        6.250      $1,575.98        360        1-Aug-28
4783754     WHITEHOUSE STATION         NJ     08889        SFD       6.625        6.250      $2,406.93        360        1-Aug-28
4783931     MISSION HILLS              KS     66208        SFD       6.625        6.250      $5,442.64        360        1-Aug-28
4784065     CONCORD                    CA     94521        SFD       6.625        6.250      $2,113.03        360        1-Jul-28
4784083     LAKE FOREST                CA     92630        SFD       7.750        6.250      $2,143.87        360        1-Jul-28
4784143     NEW CANAAN                 CT     06840        SFD       6.875        6.250      $3,994.13        360        1-Aug-28
4784272     LAGUNA HILLS               CA     92653        SFD       6.750        6.250      $2,529.54        360        1-Jul-28
4784287     HENDERSON                  NV     89012        SFD       7.000        6.250      $1,710.17        360        1-Jul-28
4784307     PHOENIX                    AZ     85022        SFD       6.750        6.250      $1,660.42        360        1-Jul-28
4784342     KATY                       TX     77450        SFD       7.250        6.250      $2,455.84        360        1-Jul-28
4784381     LAGUNA NIGUEL              CA     92677        SFD       6.750        6.250      $3,658.10        360        1-Aug-28
4784603     DOVER                      MA     02030        SFD       6.750        6.250      $3,489.46        360        1-Jul-28
4784613     BREA                       CA     92821        SFD       7.500        6.250      $1,802.93        360        1-Jul-28
4784696     DELRAY BEACH               FL     33446        SFD       6.500        6.233      $2,604.13        360        1-Jul-28
4784755     MISSION VIEJO              CA     92691        SFD       7.000        6.250      $1,755.74        360        1-Jul-28
4784804     ROLAND HEIGHTS             CA     91748        SFD       6.875        6.250      $1,974.07        360        1-Jul-28
4784884     MAINEVILLE                 OH     45039        SFD       6.875        6.250      $2,102.18        360        1-Jul-28
4785019     DEERFIELD                  IL     60015        SFD       7.500        6.250      $2,013.74        360        1-Jul-28
4785044     NAPERVILLE                 IL     60565        SFD       7.000        6.250      $1,838.24        360        1-Aug-28
4785059     ALPHARETTA                 GA     30202        SFD       7.125        6.250      $1,665.44        360        1-Jul-28
4785069     RALEIGH                    NC     27613        SFD       7.000        6.250      $1,582.76        360        1-Jul-28
4785156     PLEASANTON                 CA     94588        SFD       6.500        6.233      $1,860.66        360        1-Jul-28
4785185     RIDGEFIELD                 CT     06877        SFD       6.875        6.250      $2,117.94        360        1-Aug-28
4785251     BROOKFIELD                 WI     53045        SFD       6.750        6.250      $2,153.35        360        1-Jul-28
4785286     HOUSTON                    TX     77055        SFD       6.750        6.250      $2,309.01        360        1-Aug-28
4785319     DEER PARK                  IL     60010        SFD       7.000        6.250      $1,665.92        360        1-Jul-28
4785408     SAN JOSE                   CA     95124        SFD       7.000        6.250      $2,568.74        360        1-Jul-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4783139        $275,000.00         89.14                         99         0.250                 0.017      0.858
4783194        $468,885.95         79.99                                    0.250                 0.017      0.108
4783211        $350,000.00         67.96                                    0.250                 0.017      0.358
4783238        $367,283.50         80.00                                    0.250                 0.017      0.233
4783250        $264,600.00         70.00      GD 4YR                        0.250                 0.017      0.233
4783271        $327,450.00         80.00                                    0.250                 0.017      0.733
4783311        $268,200.00         87.36                         99         0.250                 0.017      0.733
4783406        $407,500.00         67.08                                    0.250                 0.017      0.000
4783432        $364,178.40         90.00                         06         0.250                 0.017      0.108
4783468        $321,200.00         94.99                         99         0.250                 0.017      0.483
4783580        $378,250.00         85.00                         11         0.250                 0.017      0.233
4783587        $353,695.21         80.00                                    0.250                 0.017      0.233
4783595        $296,600.00         69.99                                    0.250                 0.017      0.108
4783610        $268,000.00         63.06                                    0.250                 0.017      0.233
4783616        $269,761.78         63.60                                    0.250                 0.017      0.108
4783735        $278,271.71         79.91                                    0.250                 0.017      0.483
4783736        $324,000.00         90.00                         99         0.250                 0.017      0.733
4783737        $402,500.00         77.03                                    0.250                 0.017      0.358
4783741        $285,066.14         90.00                         99         0.250                 0.017      0.483
4783750        $239,900.00         72.72                                    0.250                 0.017      0.358
4783754        $375,900.00         79.98      GD 5YR                        0.250                 0.017      0.108
4783931        $850,000.00         47.22                                    0.250                 0.017      0.108
4784065        $329,708.84         78.78                                    0.250                 0.017      0.108
4784083        $299,038.79         95.00                         99         0.250                 0.017      1.233
4784143        $608,000.00         80.00                                    0.250                 0.017      0.358
4784272        $389,664.21         68.12                                    0.250                 0.017      0.233
4784287        $256,839.29         90.00                         99         0.250                 0.017      0.483
4784307        $255,779.58         80.00                                    0.250                 0.017      0.233
4784342        $359,719.16         90.00                         99         0.250                 0.017      0.733
4784381        $564,000.00         80.00                                    0.250                 0.017      0.233
4784603        $537,536.79         80.00                                    0.250                 0.017      0.233
4784613        $257,658.63         89.97                         99         0.250                 0.017      0.983
4784696        $411,627.54         80.00                                    0.250                 0.017      0.000
4784755        $263,683.68         79.99      GD 3YR                        0.250                 0.017      0.483
4784804        $300,247.54         79.97                                    0.250                 0.017      0.358
4784884        $319,731.15         68.09                                    0.250                 0.017      0.358
4785019        $287,786.26         90.00                         99         0.250                 0.017      0.983
4785044        $276,300.00         90.00                         99         0.250                 0.017      0.483
4785059        $247,002.31         94.35                         99         0.250                 0.017      0.608
4785069        $237,704.99         79.86                                    0.250                 0.017      0.483
4785156        $294,108.87         71.36                                    0.250                 0.017      0.000
4785185        $322,400.00         80.00                                    0.250                 0.017      0.358
4785251        $331,714.15         80.00                                    0.250                 0.017      0.233
4785286        $356,000.00         80.00                                    0.250                 0.017      0.233
4785319        $250,194.75         80.00                                    0.250                 0.017      0.483
4785408        $385,783.51         90.00      GD 3YR             99         0.250                 0.017      0.483

</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4785447     DANVILLE                   CA     94526        PUD       6.375        6.108      $1,656.38        360        1-Jul-28
4785476     CHICAGO                    IL     60611        LCO       6.250        5.983      $3,501.90        360        1-Jul-28
4785555     CHEVY CHASE                MD     20815        SFD       6.500        6.233      $3,160.35        360        1-Aug-28
4785687     AUSTIN                     TX     78734        SFD       6.750        6.250      $1,971.74        360        1-Aug-28
4785703     NEW YORK                   NY     10016        HCO       6.875        6.250      $1,563.50        360        1-Aug-28
4785759     WELLESLEY                  MA     02181        SFD       7.250        6.250      $2,728.71        360        1-Jul-28
4785866     MONTARA                    CA     94037        SFD       6.750        6.250      $2,156.59        360        1-Jul-28
4785883     MILPITAS                   CA     95035        SFD       6.500        6.233      $1,690.15        360        1-Jul-28
4785913     EDINA                      MN     55439        SFD       7.625        6.250      $1,802.76        360        1-Jul-28
4785927     EUREKA                     MO     63025        SFD       7.125        6.250      $1,584.59        360        1-Aug-28
4785969     ROLLING HILLS ESTATE       CA     90274        SFD       6.875        6.250      $5,271.86        360        1-Aug-28
4786188     LAWRENCEVILLE              NJ     08648        SFD       6.750        6.250      $1,491.78        360        1-Aug-28
4786365     LONGMONT                   CO     80501        SFD       6.250        5.983      $1,478.34        360        1-Aug-28
4786436     ACTON                      MA     01720        SFD       6.875        6.250      $2,240.79        360        1-Jul-28
4786496     SAINT CHARLES              IL     60175        SFD       6.875        6.250      $1,883.09        360        1-Aug-28
4786725     ALLEN                      TX     75013        SFD       6.875        6.250      $1,642.33        360        1-Jul-28
4786728     MABLETON                   GA     30126        SFD       7.125        6.250      $2,111.10        360        1-Aug-28
4786748     LITTLE ROCK                AR     72221        SFD       6.750        6.250      $4,825.57        360        1-Aug-28
4786985     WALLINGFORD                CT     06492        SFD       6.875        6.250      $1,809.19        360        1-Jul-28
4786989     IRVINE                     CA     92602        SFD       6.750        6.250      $2,052.17        360        1-Jul-28
4787009     DALLAS                     TX     75225        SFD       6.625        6.250      $1,920.94        360        1-Aug-28
4787018     GREEN RIVER                WY     82935        SFD       6.625        6.250      $2,049.00        360        1-Aug-28
4787047     WESTBORO                   MA     01581        SFD       6.625        6.250      $1,789.67        360        1-Jul-28
4787050     SARATOGA                   CA     95070        SFD       6.875        6.250      $3,021.88        360        1-Jul-28
4787060     DOVER                      NH     03820        SFD       7.375        6.250      $1,607.55        360        1-Aug-28
4787062     NAPERVILLE                 IL     60564        SFD       6.750        6.250      $1,556.64        360        1-Aug-28
4787063     ATLANTIC HIGHLANDS         NJ     07716        SFD       6.625        6.250      $1,972.16        360        1-Aug-28
4787083     HOUSTON                    TX     77030        SFD       7.250        6.250      $2,026.07        360        1-Jul-28
4787100     PROSPECT                   KY     40059        SFD       6.750        6.250      $2,091.73        360        1-Jul-28
4787110     CUMMING                    GA     30040        SFD       6.625        6.250      $1,920.94        360        1-Aug-28
4787141     WILTON                     CT     06897        SFD       7.250        6.250      $5,048.11        360        1-Jul-28
4787237     AUDUBON                    PA     19403        SFD       6.750        6.250      $1,695.44        360        1-Jul-28
4787251     HIGHLANDS RANCH            CO     80126        SFD       7.250        6.250      $2,181.60        360        1-Jul-28
4787360     MADISON                    CT     06443        SFD       6.500        6.233      $1,628.21        360        1-Jul-28
4787457     MURRAY HILL                NJ     07974        SFD       7.375        6.250      $1,685.25        360        1-Aug-28
4787491     LEXINGTON                  MA     02173        SFD       6.875        6.250      $1,642.33        360        1-Aug-28
4787510     DAVIDSON                   NC     28036        SFD       6.875        6.250      $1,806.56        360        1-Aug-28
4787613     MERCER ISLAND              WA     98040        SFD       7.000        6.250      $2,421.70        360        1-Jul-28
4787757     BATON ROUGE                LA     70817        SFD       7.375        6.250      $1,840.65        360        1-Aug-28
4787768     LONG VALLEY                NJ     07853        SFD       6.875        6.250      $1,575.98        360        1-Aug-28
4787783     NORCROSS                   GA     30092        SFD       6.625        6.250      $1,632.80        360        1-Aug-28
4787859     REDMOND                    WA     98053        SFD       6.875        6.250      $1,583.20        360        1-Jul-28
4787983     THOUSAND OAKS              CA     91361        PUD       6.375        6.108      $2,183.55        360        1-Jul-28
4788016     FARMINGTON                 NM     87401        SFD       6.750        6.250      $1,525.51        360        1-Jul-28
4788277     LAFAYETTE                  CO     80021        SFD       6.875        6.250      $2,373.16        360        1-Aug-28
4788288     RANCHO SANTA MARGARI       CA     92688        SFD       6.750        6.250      $1,899.10        360        1-Aug-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4785447        $265,254.09         90.00      GD 3YR             17         0.250                 0.017      0.000
4785476        $568,210.34         65.00                                    0.250                 0.017      0.000
4785555        $500,000.00         80.00                                    0.250                 0.017      0.000
4785687        $304,000.00         80.00                                    0.250                 0.017      0.233
4785703        $238,000.00         70.00                                    0.250                 0.017      0.358
4785759        $399,687.96         58.39                                    0.250                 0.017      0.733
4785866        $332,113.72         95.00      GD 3YR             17         0.250                 0.017      0.233
4785883        $267,158.27         80.00                                    0.250                 0.017      0.000
4785913        $254,515.65         90.00                         99         0.250                 0.017      1.108
4785927        $235,200.00         80.00                                    0.250                 0.017      0.608
4785969        $802,500.00         75.00                                    0.250                 0.017      0.358
4786188        $230,000.00         69.28                                    0.250                 0.017      0.233
4786365        $240,100.00         69.99                                    0.250                 0.017      0.000
4786436        $340,813.43         90.00                         12         0.250                 0.017      0.358
4786496        $286,650.00         90.00                         99         0.250                 0.017      0.358
4786725        $249,789.96         62.52                                    0.250                 0.017      0.358
4786728        $313,350.00         89.99                         11         0.250                 0.017      0.608
4786748        $744,000.00         80.00                                    0.250                 0.017      0.233
4786985        $275,168.62         90.00                         17         0.250                 0.017      0.358
4786989        $316,127.58         67.84                                    0.250                 0.017      0.233
4787009        $300,000.00         68.18                                    0.250                 0.017      0.108
4787018        $320,000.00         76.19                                    0.250                 0.017      0.108
4787047        $279,253.40         70.00                                    0.250                 0.017      0.108
4787050        $459,613.54         69.70                                    0.250                 0.017      0.358
4787060        $232,750.00         95.00                         99         0.250                 0.017      0.858
4787062        $240,000.00         80.00                                    0.250                 0.017      0.233
4787063        $308,000.00         80.00                                    0.250                 0.017      0.108
4787083        $296,768.31         90.00                         99         0.250                 0.017      0.733
4787100        $322,222.33         61.14                                    0.250                 0.017      0.233
4787110        $300,000.00         51.20                                    0.250                 0.017      0.108
4787141        $739,422.72         78.72                                    0.250                 0.017      0.733
4787237        $261,174.94         79.99                                    0.250                 0.017      0.233
4787251        $319,550.53         79.99                                    0.250                 0.017      0.733
4787360        $257,367.12         80.00                                    0.250                 0.017      0.000
4787457        $244,000.00         80.00                                    0.250                 0.017      0.858
4787491        $250,000.00         64.40                                    0.250                 0.017      0.358
4787510        $275,000.00         67.90                                    0.250                 0.017      0.358
4787613        $363,701.63         80.00                                    0.250                 0.017      0.483
4787757        $266,500.00         93.51                         99         0.250                 0.017      0.858
4787768        $239,900.00         79.99      GD 5YR                        0.250                 0.017      0.358
4787783        $255,000.00         58.62                                    0.250                 0.017      0.108
4787859        $240,797.53         87.32      GD 3YR             99         0.250                 0.017      0.358
4787983        $349,675.83         68.63                                    0.250                 0.017      0.000
4788016        $234,997.49         80.00                                    0.250                 0.017      0.233
4788277        $361,250.00         85.00                         12         0.250                 0.017      0.358
4788288        $292,800.00         80.00                                    0.250                 0.017      0.233

</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4788441     BOULDER                    CO     80304        SFD       6.500        6.233      $1,716.70        360        1-Aug-28
4788557     FREMONT                    CA     94539        SFD       7.250        6.250      $3,717.87        360        1-Jul-28
4788828     HOUSTON                    TX     77029        SFD       7.000        6.250      $2,075.75        360        1-Aug-28
4788877     NAPA                       CA     94559        SFD       6.750        6.250      $1,657.50        360        1-Aug-28
4788981     MORRIS TOWNSHIP            NJ     07054        SFD       6.500        6.233      $1,643.38        360        1-Aug-28
4789173     DULUTH                     GA     30155        SFD       6.625        6.250      $3,201.56        360        1-Aug-28
4789203     MARIETTA                   GA     30062        SFD       6.500        6.233      $2,174.32        360        1-Aug-28
4789261     DULUTH                     GA     30097        SFD       6.875        6.250      $1,576.63        360        1-Jul-28
4789337     HOUSTON                    TX     77041        SFD       7.625        6.250      $1,741.53        360        1-Aug-28
4789340     WEST BOROUGH               MA     01581        SFD       6.750        6.250      $2,484.93        324        1-Jul-25
4789480     GENEVA                     IL     60134        SFD       6.750        6.250      $2,191.62        360        1-Jul-28
4789522     WESTMINSTER                CO     80234        SFD       6.875        6.250      $2,384.66        360        1-Jul-28
4789534     DARIEN                     CT     06820        SFD       6.750        6.250      $6,485.99        360        1-Aug-28
4789620     EVANSVILLE                 IN     47711        SFD       7.125        6.250      $1,642.87        360        1-Aug-28
4789648     CHESTERFIELD               MO     63005        SFD       6.875        6.250      $1,708.02        360        1-Jul-28
4789654     WEST CHESTER               PA     19380        SFD       7.125        6.250      $1,953.79        360        1-Aug-28
4789663     LONG VALLEY                NJ     07853        SFD       6.875        6.250      $1,699.81        360        1-Jul-28
4789709     ELLISVILLE                 MO     63021        SFD       7.125        6.250      $1,788.73        360        1-Jul-28
4789801     WALNUT CREEK               CA     94596        SFD       7.000        6.250      $2,047.14        360        1-Aug-28
4789909     EL DORADO HILLS            CA     95762        SFD       6.750        6.250      $1,712.30        360        1-Aug-28
4790136     ALPHARETTA                 GA     30022        SFD       7.000        6.250      $2,139.29        360        1-Aug-28
4790252     BERKELEY HEIGHTS           NJ     07922        SFD       6.500        6.233      $1,896.21        360        1-Jul-28
4790392     DELRAY BEACH               FL     33483        SFD       7.375        6.250      $1,795.76        360        1-Jul-28
4790396     AVON                       CT     06001        SFD       7.000        6.250      $1,721.81        360        1-Aug-28
4790419     DANVILLE                   CA     94506        SFD       7.000        6.250      $3,166.84        360        1-Aug-28
4790425     COTO DE CAZA               CA     92679        PUD       6.875        6.250      $4,828.43        360        1-Jul-28
4790501     ALPHARETTA                 GA     30004        SFD       6.375        6.108      $2,183.55        360        1-Aug-28
4790593     PLEASANTON                 CA     94588        SFD       7.500        6.250      $1,875.30        360        1-Aug-28
4790597     CASTRO VALLEY              CA     94552        THS       7.250        6.250      $1,800.27        360        1-Jul-28
4790694     WILMINGTON                 NC     28411        SFD       6.625        6.250      $2,109.19        360        1-Aug-28
4790789     THE WOODLANDS              TX     77381        SFD       6.875        6.250      $1,675.17        360        1-Aug-28
4790794     MORRIS                     NJ     07961        SFD       6.750        6.250      $1,857.59        360        1-Aug-28
4790808     MARIETTA                   GA     30068        SFD       6.875        6.250      $1,559.23        360        1-Jul-28
4790843     LOVELAND                   OH     45140        SFD       6.750        6.250      $1,765.81        360        1-Aug-28
4790848     SOUTHPORT                  CT     06490        SFD       6.875        6.250      $1,905.10        360        1-Aug-28
4790989     ORLANDO                    FL     32835        PUD       6.750        6.250      $1,914.67        360        1-Aug-28
4791071     WESTON                     FL     33331        SFD       6.875        6.250      $1,766.49        360        1-Jul-28
4791149     CARMEL                     NY     10512        SFD       6.875        6.250      $1,642.33        360        1-Jul-28
4791240     ALPHARETTA                 GA     30202        SFD       7.125        6.250      $1,746.28        360        1-Aug-28
4791316     WEST LAKELAND              MN     55082        SFD       6.625        6.250      $2,556.13        360        1-Aug-28
4791367     MARIETTA                   GA     30062        SFD       6.875        6.250      $2,837.28        360        1-Jul-28
4791377     HOUSTON                    TX     77006        SFD       7.000        6.250      $2,661.21        360        1-Aug-28
4791411     SHERMAN                    CT     06784        SFD       6.750        6.250      $2,594.40        360        1-Jul-28
4791462     BELLE MEAD                 NJ     08052        SFD       6.500        6.233      $1,618.10        360        1-Aug-28
4791788     PHILADELPHIA               PA     19106        PUD       6.500        6.233      $1,820.36        360        1-Aug-28
4791816     NEWBURGH                   IN     47630        SFD       6.625        6.250      $1,504.74        360        1-Aug-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4788441          $271,600.00       80.00                                    0.250                 0.017      0.000 
4788557          $544,574.84       73.15                                    0.250                 0.017      0.733  
4788828          $312,000.00       80.00                                    0.250                 0.017      0.483  
4788877          $255,550.00       95.00                         99         0.250                 0.017      0.233  
4788981          $260,000.00       80.00                                    0.250                 0.017      0.000  
4789173          $500,000.00       51.28                                    0.250                 0.017      0.108  
4789203          $344,000.00       80.00                                    0.250                 0.017      0.000  
4789261          $239,798.37       84.81                         12         0.250                 0.017      0.358  
4789337          $246,050.00       95.00                         99         0.250                 0.017      1.108  
4789340          $369,596.32       89.81                         12         0.250                 0.017      0.233  
4789480          $337,609.07       73.79                                    0.250                 0.017      0.233  
4789522          $362,695.03       80.00                                    0.250                 0.017      0.358  
4789534        $1,000,000.00       55.71      GD 3YR                        0.250                 0.017      0.233  
4789620          $243,850.00       94.99                         99         0.250                 0.017      0.608  
4789648          $259,781.56       74.29                                    0.250                 0.017      0.358  
4789654          $290,000.00       68.36                                    0.250                 0.017      0.608  
4789663          $258,532.61       90.00                         99         0.250                 0.017      0.358  
4789709          $265,287.68       90.00                         99         0.250                 0.017      0.608  
4789801          $307,700.00       85.00      GD 3YR             99         0.250                 0.017      0.483  
4789909          $264,000.00       80.00                                    0.250                 0.017      0.233  
4790136          $321,550.00       89.99                         99         0.250                 0.017      0.483  
4790252          $299,728.79       52.36                                    0.250                 0.017      0.000  
4790392          $259,802.16       80.00                                    0.250                 0.017      0.858  
4790396          $258,800.00       80.00                                    0.250                 0.017      0.483  
4790419          $476,000.00       80.00                                    0.250                 0.017      0.483  
4790425          $734,382.51       59.51                                    0.250                 0.017      0.358  
4790501          $350,000.00       65.67                                    0.250                 0.017      0.000  
4790593          $268,200.00       90.00                         99         0.250                 0.017      0.983  
4790597          $263,694.13       79.99                                    0.250                 0.017      0.733  
4790694          $329,400.00       79.95                                    0.250                 0.017      0.108  
4790789          $255,000.00       58.62                                    0.250                 0.017      0.358  
4790794          $286,400.00       80.00                                    0.250                 0.017      0.233  
4790808          $237,150.59       89.99                         33         0.250                 0.017      0.358  
4790843          $272,250.00       73.14                                    0.250                 0.017      0.233  
4790848          $290,000.00       43.61                                    0.250                 0.017      0.358  
4790989          $295,200.00       90.00                         11         0.250                 0.017      0.233  
4791071          $268,674.08       94.98                         99         0.250                 0.017      0.358  
4791149          $249,789.96       67.11                                    0.250                 0.017      0.358  
4791240          $259,200.00       90.00                         99         0.250                 0.017      0.608  
4791316          $399,200.00       80.00                                    0.250                 0.017      0.108  
4791367          $431,537.15       79.99                                    0.250                 0.017      0.358  
4791377          $400,000.00       85.20                         99         0.250                 0.017      0.483  
4791411          $399,655.60       85.11                         99         0.250                 0.017      0.233  
4791462          $256,000.00       80.00                                    0.250                 0.017      0.000  
4791788          $288,000.00       80.00                                    0.250                 0.017      0.000  
4791816          $235,000.00       86.72                         06         0.250                 0.017      0.108

</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4791989     RALEIGH                    NC     27614        SFD       7.250        6.250      $1,645.41        360        1-Aug-28
4792062     CINCINNATI                 OH     45242        SFD       6.750        6.250      $2,023.63        360        1-Aug-28
4792181     RIDGEFIELD                 CT     06877        LCO       6.750        6.250      $1,508.00        360        1-Aug-28
4792207     MARIETTA                   GA     30068        SFD       7.000        6.250      $2,228.77        360        1-Aug-28
4792275     OMAHA                      NE     68135        SFD       7.000        6.250      $1,969.30        360        1-Jul-28
4792285     GRANITE BAY                CA     95746        SFD       7.000        6.250      $3,459.58        360        1-Aug-28
4792392     HOUSTON                    TX     77024        SFD       6.875        6.250      $1,642.33        360        1-Aug-28
4792502     ST LOUIS                   MO     63122        SFD       7.250        6.250      $2,337.82        360        1-Aug-28
4792726     SAN CARLOS                 CA     94070        SFD       6.750        6.250      $3,165.16        360        1-Jul-28
4792873     DANVILLE                   CA     94526        SFD       6.625        6.250      $1,664.81        360        1-Aug-28
4792926     BROOKFIELD                 WI     53045        SFD       6.750        6.250      $1,738.25        360        1-Aug-28
4792989     LOS ANGELES                CA     90064        SFD       6.250        5.983      $2,380.37        360        1-Jul-28
4793039     THE WOODLANDS              TX     77381        SFD       6.875        6.250      $1,602.91        360        1-Aug-28
4793073     LAGUNA HILLS               CA     92653        SFD       6.750        6.250      $2,750.06        360        1-Aug-28
4793158     NAVARRE                    FL     32566        SFD       7.125        6.250      $1,867.22        360        1-Jul-28
4793160     SAN DIEGO                  CA     92128        SFD       7.000        6.250      $1,942.68        360        1-Jul-28
4793205     WILDWOOD                   MO     63005        SFD       6.750        6.250      $1,966.55        360        1-Aug-28
4793319     SOUTHLAKE                  TX     76092        SFD       7.125        6.250      $1,663.42        360        1-Aug-28
4793430     BRIDGEWATER                NJ     08807        SFD       6.625        6.250      $1,786.47        360        1-Aug-28
4793479     LAKE ORION                 MI     48360        SFD       7.500        6.250      $1,866.21        360        1-Jul-28
4793647     ISSAQUAH                   WA     98029        SFD       7.000        6.250      $1,663.26        360        1-Jul-28
4793703     RALEIGH                    NC     27614        SFD       7.000        6.250      $1,580.76        360        1-Aug-28
4793887     LEES SUMMIT                MO     64064        SFD       6.750        6.250      $2,122.87        360        1-Aug-28
4793901     HOUSTON                    TX     77024        SFD       6.500        6.233      $3,849.30        360        1-Jul-28
4794074     DALLAS                     TX     75204        THS       7.000        6.250      $2,341.87        360        1-Aug-28
4794078     LAKE FOREST                IL     60045        SFD       7.000        6.250      $3,619.25        360        1-Aug-28
4794258     MORGAN HILL                CA     95037        SFD       7.125        6.250      $2,526.45        360        1-Jul-28
4794264     PLEASANTON                 CA     94566        SFD       6.750        6.250      $2,438.09        360        1-Jul-28
4794535     MONUMENT                   CO     80132        SFD       6.875        6.250      $2,028.60        360        1-Aug-28
4794580     MORGAN HILL                CA     95037        SFD       6.625        6.250      $1,920.94        360        1-Aug-28
4794713     DOYLESTOWN                 PA     18901        SFD       6.875        6.250      $1,613.42        360        1-Jul-28
4795215     CHINO HILLS                CA     91709        SFD       6.500        6.233      $1,663.29        360        1-Aug-28
4795222     MARION                     IA     52302        SFD       6.875        6.250      $1,970.79        360        1-Aug-28
4795350     SUMMIT                     NJ     07901        SFD       7.375        6.250      $1,795.76        360        1-Aug-28
4795351     PLANO                      TX     75093        SFD       7.125        6.250      $1,852.73        360        1-Jul-28
4795477     ARLINGTON                  VA     22207        SFD       6.500        6.233      $2,920.79        360        1-Aug-28
4795545     MCKINNEY                   TX     75070        SFD       7.125        6.250      $1,643.88        360        1-Aug-28
4795556     SAN RAMON                  CA     94583        SFD       6.625        6.250      $1,941.43        360        1-Aug-28
4795574     SOUTHLAKE                  TX     76092        SFD       7.000        6.250      $1,735.11        360        1-Jul-28
4795651     SCOTTSDALE                 AZ     85255        SFD       6.625        6.250      $2,241.09        360        1-Aug-28
4795658     SIMPSONVILLE               SC     29681        SFD       6.750        6.250      $1,618.91        360        1-Aug-28
4795700     THOUSAND OAKS              CA     91362        SFD       7.000        6.250      $3,223.40        360        1-Aug-28
4795742     FAYETTEVILLE               GA     30214        SFD       6.500        6.233      $1,468.93        360        1-Aug-28
4795843     STILLWATER                 MN     55082        SFD       6.750        6.250      $1,906.88        360        1-Aug-28
4795941     LAGUNA NIGUEL              CA     92677        SFD       6.750        6.250      $2,156.59        360        1-Aug-28
4795955     MELBOURNE                  FL     32940        SFD       7.250        6.250      $1,851.09        360        1-Jul-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4791989        $241,200.00         90.00                         99         0.250                 0.017      0.733 
4792062        $312,000.00         80.00                                    0.250                 0.017      0.233 
4792181        $232,500.00         75.00                                    0.250                 0.017      0.233 
4792207        $335,000.00         80.00                                    0.250                 0.017      0.483 
4792275        $295,757.37         80.00                                    0.250                 0.017      0.483 
4792285        $520,000.00         77.55                                    0.250                 0.017      0.483 
4792392        $250,000.00         57.02                                    0.250                 0.017      0.358 
4792502        $342,700.00         71.41                                    0.250                 0.017      0.733 
4792726        $487,579.84         80.00                                    0.250                 0.017      0.233 
4792873        $260,000.00         80.00      GD 3YR                        0.250                 0.017      0.108 
4792926        $268,000.00         80.00                                    0.250                 0.017      0.233 
4792989        $386,233.17         80.00                                    0.250                 0.017      0.000 
4793039        $244,000.00         79.97                                    0.250                 0.017      0.358 
4793073        $424,000.00         80.00                                    0.250                 0.017      0.233 
4793158        $276,928.36         79.99                                    0.250                 0.017      0.608 
4793160        $291,760.65         80.00                                    0.250                 0.017      0.483 
4793205        $303,200.00         80.00                                    0.250                 0.017      0.233 
4793319        $246,900.00         94.99                         99         0.250                 0.017      0.608 
4793430        $279,000.00         90.00                         17         0.250                 0.017      0.108 
4793479        $266,701.92         89.99                         99         0.250                 0.017      0.983 
4793647        $249,795.07         69.54                                    0.250                 0.017      0.483 
4793703        $237,600.00         80.00                                    0.250                 0.017      0.483 
4793887        $327,300.00         74.56                                    0.250                 0.017      0.233 
4793901        $608,449.45         80.00                                    0.250                 0.017      0.000 
4794074        $352,000.00         80.00                                    0.250                 0.017      0.483 
4794078        $544,000.00         80.00                                    0.250                 0.017      0.483 
4794258        $374,700.11         34.09                                    0.250                 0.017      0.608 
4794264        $375,576.35         79.99                                    0.250                 0.017      0.233 
4794535        $308,800.00         80.00                                    0.250                 0.017      0.358 
4794580        $300,000.00         65.50                                    0.250                 0.017      0.108 
4794713        $245,393.66         79.39                                    0.250                 0.017      0.358 
4795215        $263,150.00         95.00                         99         0.250                 0.017      0.000 
4795222        $300,000.00         70.59      GD 3YR                        0.250                 0.017      0.358 
4795350        $260,000.00         80.00                                    0.250                 0.017      0.858 
4795351        $274,780.08         50.00                                    0.250                 0.017      0.608 
4795477        $462,100.00         80.00                                    0.250                 0.017      0.000 
4795545        $244,000.00         73.05                                    0.250                 0.017      0.608 
4795556        $303,200.00         80.00      GD 4YR                        0.250                 0.017      0.108 
4795574        $260,586.22         80.00                                    0.250                 0.017      0.483 
4795651        $350,000.00         68.97                                    0.250                 0.017      0.108 
4795658        $249,600.00         80.00                                    0.250                 0.017      0.233 
4795700        $484,500.00         85.00      GD 3YR             99         0.250                 0.017      0.483 
4795742        $232,400.00         89.42                         11         0.250                 0.017      0.000 
4795843        $294,000.00         76.56                                    0.250                 0.017      0.233 
4795941        $332,500.00         70.00                                    0.250                 0.017      0.233 
4795955        $271,138.32         90.00                         99         0.250                 0.017      0.733 
</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4795960     MILWAUKEE                  WI     53211        SFD       6.375        6.108      $1,550.01        360        1-Aug-28
4795964     RESTON                     VA     20191        SFD       7.375        6.250      $1,958.07        360        1-Jul-28
4796038     ROSWELL                    GA     30075        SFD       7.000        6.250      $3,193.46        360        1-Aug-28
4796102     WESTERVILLE                OH     43082        SFD       6.375        6.108      $1,715.65        360        1-Jul-28
4796213     MEAD                       CO     80504        SFD       6.500        6.233      $1,750.83        360        1-Aug-28
4796318     ENGLEWOOD                  CO     80111        SFD       6.750        6.250      $1,556.64        360        1-Aug-28
4796380     AGOURA                     CA     91301        SFD       7.000        6.250      $1,995.91        360        1-Jul-28
4796658     MARIETTA                   GA     30062        SFD       6.625        6.250      $1,895.33        360        1-Jul-28
4796763     CARMEL                     CA     93923        SFD       7.000        6.250      $1,783.02        360        1-Aug-28
4796769     THE WOODLANDS              TX     77380        SFD       6.375        6.108      $1,542.52        360        1-Jul-28
4796987     WEST CHESTER               PA     19380        SFD       6.500        6.233      $1,858.28        360        1-Aug-28
4797032     SUGAR LAND                 TX     77478        SFD       7.200        6.250        $871.57        360        1-May-28
4797051     HOUSTON                    TX     77005        SFD       6.625        6.250      $1,992.97        360        1-Aug-28
4797103     CARMEL                     IN     46033        SFD       6.500        6.233      $1,706.59        360        1-Aug-28
4797220     KNOXVILLE                  TN     37922        SFD       7.125        6.250      $1,767.84        360        1-Aug-28
4797340     LAFAYETTE                  CO     80026        SFD       7.000        6.250      $1,763.06        360        1-Aug-28
4797400     RALEIGH                    NC     27613        SFD       7.000        6.250      $1,630.00        360        1-Jul-28
4797761     ROCHESTER HILLS            MI     48309        SFD       6.875        6.250      $2,364.95        360        1-Aug-28
4797809     CALABASAS                  CA     91302        SFD       6.375        6.108      $4,055.16        360        1-Aug-28
4798018     LITTLETON                  CO     80123        SFD       6.625        6.250      $2,330.74        360        1-Aug-28
4798451     WOODLAND HILLS             CA     91367        PUD       7.250        6.250      $2,455.84        360        1-Aug-28
4798505     KENT                       WA     98042        SFD       7.250        6.250      $1,872.58        360        1-Aug-28
4798659     THE WOODLANDS              TX     77382        SFD       6.875        6.250      $1,707.36        360        1-Aug-28
4798721     DULUTH                     GA     30097        SFD       6.750        6.250      $3,243.00        360        1-Aug-28
4798762     COPPELL                    TX     75019        SFD       7.250        6.250      $2,087.46        360        1-Aug-28
4798828     WESTPORT                   CT     06880        SFD       7.375        6.250      $6,509.61        360        1-Jul-28
4798902     WESTON                     FL     33331        SFD       6.875        6.250      $1,694.88        360        1-Aug-28
4799049     AUSTIN                     TX     78726        SFD       6.875        6.250      $1,681.74        360        1-Jul-28
4799191     LEBANON                    NJ     07830        SFD       6.875        6.250      $1,845.97        360        1-Aug-28
4799225     PARKLAND                   FL     33076        SFD       7.000        6.250      $1,809.63        360        1-Jul-28
4799397     WAKE FOREST                NC     27587        SFD       7.000        6.250      $2,927.34        360        1-Jul-28
4799493     MCKINNEY                   TX     75070        SFD       7.125        6.250      $2,255.61        360        1-Aug-28
4799541     COPPELL                    TX     75019        SFD       6.875        6.250      $1,918.24        360        1-Aug-28
4799742     MARTINEZ                   CA     94553        SFD       7.000        6.250      $2,102.36        360        1-Aug-28
4799796     SAN RAMON                  CA     94583        SFD       7.250        6.250      $2,810.57        360        1-Aug-28
4800086     SAN JOSE                   CA     95135        SFD       7.125        6.250      $2,537.23        360        1-Jul-28
4800095     PHOENIX                    AZ     85032        SFD       6.500        6.233      $1,633.27        360        1-Jul-28
4800096     CINCINNATI                 OH     45249        SFD       6.375        6.108      $2,289.61        360        1-Jul-28
4800235     ATLANTA                    GA     30342        SFD       6.875        6.250      $1,960.28        360        1-Jul-28
4800309     TULSA                      OK     74146        SFD       6.625        6.250      $2,486.65        360        1-Aug-28
4800366     PLAYA DEL REY              CA     90293        SFD       6.625        6.250      $2,497.22        360        1-Aug-28
4800502     NORCROSS                   GA     30092        SFD       6.750        6.250      $1,556.64        360        1-Aug-28
4801195     ALBUQUERQUE                NM     87107        SFD       6.375        6.108      $1,559.68        360        1-Aug-28
4801344     VALENCIA                   CA     91355        SFD       6.375        6.108      $1,547.20        360        1-Aug-28
4801572     KINGWOOD                   TX     77345        SFD       6.875        6.250      $1,629.19        360        1-Aug-28
4801651     SAN JOSE                   CA     95135        SFD       7.375        6.250      $2,806.91        360        1-Aug-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4795960        $248,450.00         69.99                                    0.250                 0.017      0.000  
4795964        $283,284.27         90.00                         33         0.250                 0.017      0.858  
4796038        $480,000.00         80.00                                    0.250                 0.017      0.483  
4796102        $274,745.29         64.71                                    0.250                 0.017      0.000  
4796213        $277,000.00         79.83                                    0.250                 0.017      0.000  
4796318        $240,000.00         80.00                                    0.250                 0.017      0.233  
4796380        $299,754.09         68.18                                    0.250                 0.017      0.483  
4796658        $295,738.84         80.00                                    0.250                 0.017      0.108  
4796763        $268,000.00         80.00                                    0.250                 0.017      0.483  
4796769        $247,021.00         50.00                                    0.250                 0.017      0.000  
4796987        $294,000.00         92.55                         11         0.250                 0.017      0.000  
4797032        $128,094.67         80.00                                    0.250                 0.017      0.683  
4797051        $311,250.00         75.00                                    0.250                 0.017      0.108  
4797103        $270,000.00         69.32                                    0.250                 0.017      0.000  
4797220        $262,400.00         80.00                                    0.250                 0.017      0.608  
4797340        $265,000.00         67.09                                    0.250                 0.017      0.483  
4797400        $244,799.17         89.09                         33         0.250                 0.017      0.483  
4797761        $360,000.00         80.00                                    0.250                 0.017      0.358  
4797809        $650,000.00         39.76                                    0.250                 0.017      0.000  
4798018        $364,000.00         69.47                                    0.250                 0.017      0.108  
4798451        $360,000.00         48.00                                    0.250                 0.017      0.733  
4798505        $274,500.00         90.00      GD 3YR             99         0.250                 0.017      0.733  
4798659        $259,900.00         66.73                                    0.250                 0.017      0.358  
4798721        $500,000.00         63.49                                    0.250                 0.017      0.233  
4798762        $306,000.00         90.00      GD 3YR             99         0.250                 0.017      0.733  
4798828        $941,782.84         65.00                                    0.250                 0.017      0.858  
4798902        $258,000.00         94.48      GD 3YR             11         0.250                 0.017      0.358  
4799049        $255,784.93         79.86                                    0.250                 0.017      0.358  
4799191        $281,000.00         88.09                         99         0.250                 0.017      0.358  
4799225        $271,777.04         80.00                                    0.250                 0.017      0.483  
4799397        $439,639.33         80.00                                    0.250                 0.017      0.483  
4799493        $334,800.00         80.00                                    0.250                 0.017      0.608  
4799541        $292,000.00         80.00                                    0.250                 0.017      0.358  
4799742        $316,000.00         80.00                                    0.250                 0.017      0.483  
4799796        $412,000.00         80.00                                    0.250                 0.017      0.733  
4800086        $376,298.83         89.99                         99         0.250                 0.017      0.608  
4800095        $258,166.40         95.00                         33         0.250                 0.017      0.000  
4800096        $366,560.08         74.52                                    0.250                 0.017      0.000  
4800235        $298,149.30         80.00                                    0.250                 0.017      0.358  
4800309        $388,350.00         90.00                         99         0.250                 0.017      0.108  
4800366        $390,000.00         68.42      GD20YR                        0.250                 0.017      0.108  
4800502        $240,000.00         80.00                                    0.250                 0.017      0.233  
4801195        $250,000.00         51.55                                    0.250                 0.017      0.000  
4801344        $248,000.00         80.00                                    0.250                 0.017      0.000  
4801572        $248,000.00         80.00                                    0.250                 0.017      0.358  
4801651        $406,400.00         80.00                                    0.250                 0.017      0.858  
</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4802321     GRAND JUNCTION             CO     81506        SFD       6.750        6.250      $1,878.35        360        1-Aug-28
4802467     MORGAN HILL                CA     95037        SFD       7.500        6.250      $2,293.42        360        1-Aug-28
4802617     HOUSTON                    TX     77024        SFD       6.500        6.233      $2,654.69        360        1-Jul-28
4802807     PLANTATION                 FL     33324        SFD       6.875        6.250      $1,601.27        360        1-Jul-28
4802985     HOUSTON                    TX     77025        SFD       6.625        6.250      $2,049.00        360        1-Aug-28
4803288     ALPHARETTA                 GA     30202        SFD       7.125        6.250        $997.78        360        1-Jul-28
4803320     ROSWELL                    GA     30076        SFD       6.875        6.250      $1,668.60        360        1-Aug-28
4804591     SARATOGA                   CA     95070        SFD       6.875        6.250      $3,777.35        360        1-Aug-28
4804675     SOUTHLAKE                  TX     76092        SFD       6.875        6.250      $1,775.36        360        1-Jul-28
4804908     ACTON                      MA     01720        SFD       6.625        6.250      $1,930.54        360        1-Jul-28
4804932     SEWARD                     NE     68434        SFD       6.500        6.233      $1,896.21        360        1-Aug-28
4804998     CARMEL                     IN     46032        SFD       7.000        6.250      $1,922.73        360        1-Aug-28
4805292     NEW HOPE                   PA     18938        SFD       6.625        6.250      $1,984.97        360        1-Aug-28
4805387     SOUTHLAKE                  TX     76092        SFD       7.125        6.250      $1,993.54        360        1-Aug-28
4805568     PARK CITY                  UT     84098        SFD       7.000        6.250      $3,007.17        360        1-Aug-28
4805595     SOUTHBURY                  CT     06488        SFD       6.750        6.250      $1,932.18        360        1-Aug-28
4805605     PALATINE                   IL     60067        SFD       7.250        6.250      $2,430.26        360        1-Aug-28
4805805     FLEMINGTON                 NJ     08822        SFD       6.625        6.250      $1,555.96        360        1-Aug-28
4805849     THE WOODLANDS              TX     77381        SFD       6.625        6.250      $2,218.04        360        1-Jul-28
4805978     SHOREWOOD                  MN     55331        SFD       6.750        6.250      $2,296.04        360        1-Aug-28
4806673     TUSTIN                     CA     92782        LCO       7.000        6.250      $2,181.66        360        1-Aug-28
4806720     APOPKA                     FL     32712        SFD       7.000        6.250      $1,596.07        360        1-Jun-28
4806802     WOODSTOCK                  GA     30189        SFD       7.750        6.250      $1,724.62        360        1-Aug-28
4807181     SAN ANTONIO                TX     78248        SFD       7.000        6.250      $2,262.03        360        1-Aug-28
4807544     WESTON                     CT     06883        SFD       6.000        5.733      $2,922.81        360        1-Aug-28
4807826     PLEASANTON                 CA     94566        SFD       6.500        6.233      $2,932.80        360        1-Aug-28
4807833     LOS ALTOS                  CA     94022        SFD       7.375        6.250      $2,072.03        360        1-Aug-28
4808726     TAMPA                      FL     33611        SFD       6.875        6.250      $1,618.68        360        1-Aug-28
4808842     SAN RAMON                  CA     94583        SFD       7.000        6.250      $2,262.03        360        1-Aug-28
4809292     SAN JOSE                   CA     95135        SFD       7.125        6.250      $1,886.08        360        1-Aug-28
4810836     KINGWOOD                   TX     77345        SFD       6.500        6.233      $1,580.18        360        1-Aug-28
4811387     WESTERVILLE                OH     43082        SFD       7.125        6.250      $2,560.13        360        1-Aug-28
4811499     CHERRY HILLS VILLAGE       CO     80110        SFD       6.625        6.250      $4,802.34        360        1-Aug-28
4811812     RYE                        NY     10580        SFD       6.375        6.108      $4,367.09        360        1-Aug-28
4812057     SAN JOSE                   CA     95120        SFD       6.625        6.250      $3,072.86        360        1-Aug-28
4812989     EDWARDS                    CO     81632        SFD       6.875        6.250      $3,032.39        360        1-Aug-28
4813621     PASADENA                   MD     21122        SFD       7.375        6.250      $1,616.18        360        1-Aug-28
4813641     AUSTIN                     TX     78733        SFD       7.000        6.250      $1,821.60        360        1-Aug-28
4813908     INVERNESS                  IL     60067        SFD       6.625        6.250      $4,149.22        360        1-Aug-28
4813923     KIRKLAND                   WA     98033        SFD       6.875        6.250      $1,576.63        360        1-Aug-28
4814119     TIGARD                     OR     97224        SFD       6.625        6.250      $2,958.24        360        1-Aug-28
4814368     DUNWOODY                   GA     30350        SFD       7.125        6.250      $1,998.93        360        1-Aug-28
4815277     THE WOODLANDS              TX     77382        SFD       6.500        6.233      $2,137.41        360        1-Aug-28
4815380     MARIETTA                   GA     30067        SFD       6.375        6.108      $1,597.11        360        1-Aug-28
4815813     EDMOND                     OK     73013        SFD       6.500        6.233      $1,558.05        360        1-Aug-28
4815989     MCKINNEY                   TX     75070        SFD       6.875        6.250      $1,813.13        360        1-Aug-28
</TABLE>

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4802321        $289,600.00         80.00                                    0.250                 0.017      0.233 
4802467        $328,000.00         80.00                                    0.250                 0.017      0.983  
4802617        $419,620.31         47.73                                    0.250                 0.017      0.000  
4802807        $243,545.21         75.00                                    0.250                 0.017      0.358  
4802985        $320,000.00         80.00                                    0.250                 0.017      0.108  
4803288        $147,981.56         95.00                         06         0.250                 0.017      0.608  
4803320        $254,000.00         80.00                                    0.250                 0.017      0.358  
4804591        $575,000.00         69.70                                    0.250                 0.017      0.358  
4804675        $270,022.95         79.99                                    0.250                 0.017      0.358  
4804908        $301,233.99         90.00                         17         0.250                 0.017      0.108  
4804932        $300,000.00         85.71                         99         0.250                 0.017      0.000  
4804998        $289,000.00         74.29                                    0.250                 0.017      0.483  
4805292        $310,000.00         69.66                                    0.250                 0.017      0.108  
4805387        $295,900.00         79.99                                    0.250                 0.017      0.608  
4805568        $452,000.00         80.00                                    0.250                 0.017      0.483  
4805595        $297,900.00         88.93                         99         0.250                 0.017      0.233  
4805605        $356,250.00         95.00                         99         0.250                 0.017      0.733  
4805805        $243,000.00         75.94                                    0.250                 0.017      0.108  
4805849        $346,094.38         80.00                                    0.250                 0.017      0.108  
4805978        $354,000.00         66.92                                    0.250                 0.017      0.233  
4806673        $327,920.00         80.00                                    0.250                 0.017      0.483  
4806720        $239,505.55         79.99                                    0.250                 0.017      0.483  
4806802        $240,730.00         95.00                         99         0.250                 0.017      1.233  
4807181        $340,000.00         78.25                                    0.250                 0.017      0.483  
4807544        $487,500.00         80.58                         99         0.250                 0.017      0.000  
4807826        $464,000.00         80.00                                    0.250                 0.017      0.000  
4807833        $300,000.00         39.53                                    0.250                 0.017      0.858  
4808726        $246,400.00         80.00                                    0.250                 0.017      0.358  
4808842        $340,000.00         80.00                                    0.250                 0.017      0.483  
4809292        $279,950.00         79.99                                    0.250                 0.017      0.608  
4810836        $250,000.00         65.45                                    0.250                 0.017      0.000  
4811387        $380,000.00         80.00                                    0.250                 0.017      0.608  
4811499        $750,000.00         65.22                                    0.250                 0.017      0.108  
4811812        $700,000.00         77.78                                    0.250                 0.017      0.000  
4812057        $479,900.00         73.84                                    0.250                 0.017      0.108  
4812989        $461,600.00         79.79                                    0.250                 0.017      0.358  
4813621        $234,000.00         89.10                         99         0.250                 0.017      0.858  
4813641        $273,800.00         80.00                                    0.250                 0.017      0.483  
4813908        $648,000.00         80.00                                    0.250                 0.017      0.108  
4813923        $240,000.00         54.55                                    0.250                 0.017      0.358  
4814119        $462,000.00         80.00                                    0.250                 0.017      0.108  
4814368        $296,700.00         89.98                         11         0.250                 0.017      0.608  
4815277        $338,160.00         80.00                                    0.250                 0.017      0.000  
4815380        $256,000.00         80.00                                    0.250                 0.017      0.000  
4815813        $246,500.00         85.00                         17         0.250                 0.017      0.000  
4815989        $276,000.00         80.00                                    0.250                 0.017      0.358  
</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4822149     NORTH POTOMAC              MD     20878        SFD       7.750        6.250      $1,788.17        360        1-Oct-27
4822155     BATON ROUGE                LA     70810        SFD       7.000        6.250      $2,062.44        360        1-Aug-28
4822777     CLAYTON                    MO     63105        SFD       7.500        6.250      $2,293.42        360        1-Jul-28
6827056     ANAHEIM                    CA     92808        SFD       8.000        6.250      $2,104.07        360        1-May-28
</TABLE>

COUNT:  740
WAC:      6.864889449
WAM:    358.8448542
WALTV:   77.90195578

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4822149            $247,693.31     80.00                                    0.250                 0.017      1.233
4822155            $310,000.00     75.61                                    0.250                 0.017      0.483
4822777            $327,756.58     76.64                                    0.250                 0.017      0.983
6827056            $286,168.93     89.99                         17         0.250                 0.017      1.483
                                                                                                                          
               $244,451,791.72                                                                                            
</TABLE>


<PAGE>


                                   EXHIBIT F-3


            [Schedule of Mortgage Loans Serviced by Other Servicers]



<TABLE>
NASCOR
NMI/1998-22 Exhibit F-3 (Part A)
20 & 30 YEAR FIXED RATE RELOCATION LOANS

<CAPTION>
                                                                                  NET
MORTGAGE                                                           MORTGAGE     MORTGAGE      CURRENT      ORIGINAL     SCHEDULED
LOAN                                          ZIP      PROPERTY    INTEREST     INTEREST      MONTHLY      TERM TO      MATURITY
NUMBER      CITY                     STATE    CODE       TYPE        RATE         RATE        PAYMENT      MATURITY       DATE
- --------    ---------------------    -----    -----    --------    --------     --------     ----------    --------     ---------
<S>         <C>                        <C>    <C>          <C>       <C>          <C>        <C>              <C>        <C>
4637865     HOPKINTON                  MA     01748        SFD       7.750        6.250      $1,558.91        360        1-Aug-27
4766995     YARDLEY                    PA     19067        SFD       7.250        6.250      $1,853.82        360        1-Feb-28
4768755     BRISTOW                    VA     20136        SFD       7.000        6.250      $1,652.95        360        1-May-28
4762827     CARMEL                     IN     46032        SFD       6.750        6.250      $1,738.25        360        1-Jun-28
4763550     INDIANAPOLIS               IN     46240        SFD       7.125        6.250      $2,037.33        360        1-Jul-28
4774655     CHESHIRE                   CT     06410        SFD       7.125        6.250      $1,563.03        360        1-Jul-28
4778143     BERNARDSVILLE BORO         NJ     07924        SFD       7.250        6.250      $1,910.10        360        1-Jul-28
4779924     POWELL                     OH     43065        SFD       7.000        6.250      $2,162.24        360        1-Jul-28
4780384     FORKED RIVER               NJ     08731        SFD       6.750        6.250      $2,516.57        360        1-Jul-28
4780628     WESTERVILLE                OH     43082        SFD       7.000        6.250      $1,876.16        360        1-Jun-28
4781663     WESTERVILLE                OH     43082        SFD       7.000        6.250      $2,062.44        360        1-Jul-28
4785083     WESTERVILLE                OH     43082        SFD       7.000        6.250      $2,195.50        360        1-Jul-28
4787303     PERRYSBURG                 OH     43551        SFD       6.875        6.250      $1,609.48        360        1-Jul-28
4788748     ANAHEIM                    CA     92808        SFD       6.625        6.250      $2,679.71        360        1-Aug-28
4790273     GRANITE BAY                CA     95746        SFD       7.000        6.250      $2,182.20        360        1-Jul-28
4790293     HUNTINGTON BEACH           CA     92648        PUD       6.625        6.250      $2,420.38        360        1-Jul-28
4792713     GAHANNA                    OH     43230        SFD       7.000        6.250      $1,804.31        360        1-Jul-28
4798521     NAPERVILLE                 IL     60564        SFD       6.875        6.250      $2,501.59        360        1-Jul-28
4801027     MOORESTOWN                 NJ     08057        SFD       6.750        6.250      $2,594.40        360        1-Aug-28
</TABLE>

COUNT:   19
WAC:      6.953234788
WAM:    358.3267385
WALTV:   79.31607105

<TABLE>
<CAPTION>
               CUT-OFF                                                                                            
MORTGAGE       DATE                                        MORTGAGE                  T.O.P.      MASTER     FIXED 
LOAN           PRINCIPAL                                   INSURANCE      SERVICE    MORTGAGE    SERVICE    RETAINED
NUMBER         BALANCE             LTV       SUBSIDY       CODE           FEE        LOAN        FEE        YIELD 
- --------       --------------      ------    ---------     ----------     --------   --------    -------    ------
<S>            <C>                 <C>        <C>                <C>        <C>                   <C>        <C>   
4637865        $215,690.18         80.00                                    0.250                 0.017      1.233 
4766995        $270,458.64         79.93                                    0.250                 0.017      0.733 
4768755        $247,835.45         94.99                          11        0.250                 0.017      0.483 
4762827        $267,537.20         80.00                                    0.250                 0.017      0.233 
4763550        $302,158.17         80.00                                    0.250                 0.017      0.608 
4774655        $231,814.47         88.55                          33        0.250                 0.017      0.608 
4778143        $279,781.57         76.71                                    0.250                 0.017      0.733 
4779924        $324,733.59         69.00                                    0.250                 0.017      0.483 
4780384        $387,665.93         79.18                                    0.250                 0.017      0.233 
4780628        $281,536.33         77.90                                    0.250                 0.017      0.483 
4781663        $309,745.89         57.41                                    0.250                 0.017      0.483 
4785083        $329,729.50         78.37                                    0.250                 0.017      0.483 
4787303        $244,794.17         67.12                                    0.250                 0.017      0.358 
4788748        $418,500.00         90.00                          12        0.250                 0.017      0.108 
4790273        $327,731.13         84.10                          99        0.250                 0.017      0.483 
4790293        $377,666.49         90.00                          13        0.250                 0.017      0.108 
4792713        $270,782.00         80.00                                    0.250                 0.017      0.483 
4798521        $380,480.08         80.00                                    0.250                 0.017      0.358 
4801027        $400,000.00         72.73                                    0.250                 0.017      0.233 

             $5,868,640.79
</TABLE>


<PAGE>


NASCOR
NMI / 1998-22 Exhibit F-3 (Part B)
20 & 30 YEAR FIXED RATE RELOCATION  LOANS

MORTGAGE                                          NMI
LOAN                                              LOAN
NUMBER          SERVICER                          SELLER
- --------        ----------------------------      ----------------------------
4637865         CITICORP MORTGAGE, INC.           CITICORP MORTGAGE, INC.
4766995         CITICORP MORTGAGE, INC.           CITICORP MORTGAGE, INC.
4768755         CITICORP MORTGAGE, INC.           CITICORP MORTGAGE, INC.
4762827         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4763550         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4774655         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4778143         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4779924         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4780384         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4780628         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4781663         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4785083         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4787303         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4788748         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4790273         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4790293         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4792713         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4798521         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY
4801027         HUNTINGTON MORTGAGE COMPANY       HUNTINGTON MORTGAGE COMPANY

COUNT:   19
WAC:      6.953234788
WAM:    358.3267385
WALTV:   79.31607105


<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 1998-22


     The undersigned  Master Servicer hereby  acknowledges  that it has received
from  First  Union  National  Bank,  as  Trustee  for the  Holders  of  Mortgage
Pass-Through Certificates,  Series 1998-22, 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, 1998 (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 1998-22, Class A-R Certificate (the "Class A-R
Certificate") for the account of, or as agent (including a broker,  nominee,  or
other  middleman)  for,  any person or entity from which it has not  received an
affidavit  substantially  in the form of this affidavit.  For these purposes,  a
"disqualified  organization"  means the United  States,  any state or  political
subdivision thereof, any foreign government, any international organization, any
agency or instrumentality of any of the foregoing (other than an instrumentality
if all of its  activities  are  subject  to tax and a  majority  of its board of
directors  is  not  selected  by  such  governmental  entity),  any  cooperative
organization  furnishing  electric  energy or  providing  telephone  service  to
persons  in rural  areas as  described  in Code  Section  1381(a)(2)(C),  or any
organization (other than a farmers'  cooperative  described in Code Section 521)
that is exempt from taxation under the Code unless such  organization is subject
to the tax on unrelated  business  income imposed by Code Section 511. For these
purposes,  an "ERISA Prohibited  Holder" means an employee benefit plan or other
retirement  arrangement  subject to Title I of the  Employee  Retirement  Income
Security  Act  of  1974,  as  amended  ("ERISA"),  or  Code  Section  4975  or a
governmental plan, as defined in Section 3(32) of ERISA, subject to any federal,
state or local law which is, to a  material  extent,  similar  to the  foregoing
provisions of ERISA or the Code  (collectively,  a "Plan") or a Person acting on
behalf of or investing the assets of such a Plan.

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

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

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

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

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

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


<PAGE>


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

                                                 [NAME OF PURCHASER]


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


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


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


__________________________
NOTARY PUBLIC

COUNTY OF_________________

STATE OF__________________

My commission expires the __ day of __________, 19__.


<PAGE>


                                    EXHIBIT I


                [Letter from Transferor of Class A-R Certificate]


                                     [Date]


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

                  Re:   Norwest Asset Securities Corporation,
                        Series 1998-22, Class A-R
                        _____________________________________

Ladies and Gentlemen:

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

                                                       _________________________


<PAGE>


                                    EXHIBIT J


                      NORWEST ASSET SECURITIES CORPORATION


                       MORTGAGE PASS-THROUGH CERTIFICATES
                                 SERIES 1998-22
                    CLASS [A-PO][B-4][B-5][B-6] CERTIFICATES


                               TRANSFEREE'S LETTER


                                                      ________________ ___, ____

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

Norwest Asset Securities Corporation
7485 New Horizon Way
Frederick, Maryland 21703

     The  undersigned  (the  "Purchaser")  proposes  to purchase  Norwest  Asset
Securities Corporation Mortgage Pass-Through Certificates, Series 1998-22, Class
[A-PO][B-4][B-5][B-6]    Certificates    (the    "Class    [A-PO][B-4][B-5][B-6]
Certificates")  in the  principal  amount  of  $___________.  In doing  so,  the
Purchaser hereby acknowledges and agrees as follows:

     Section 1. Definitions. Each capitalized term used herein and not otherwise
defined  herein  shall  have  the  meaning  ascribed  to it in the  Pooling  and
Servicing  Agreement,  dated as of August 27, 1998 (the  "Pooling and  Servicing
Agreement")  among  Norwest  Asset  Securities   Corporation,   as  seller  (the
"Seller"), Norwest Bank Minnesota, National Association, as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"), of
Norwest Asset Securities Corporation Mortgage Pass-Through Certificates,  Series
1998-22.

     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:

                  (a) The Purchaser is duly organized,  validly  existing and in
         good standing under the laws of the jurisdiction in which the Purchaser
         is    organized,    is    authorized    to    invest   in   the   Class
         [A-PO][B-4][B-5][B-6]  Certificates,  and to enter into this Agreement,
         and duly executed and delivered this Agreement.

                  (b) The Purchaser is acquiring the Class [A-PO][B-4][B-5][B-6]
         Certificates  for its own account as  principal  and not with a view to
         the distribution thereof, in whole or in part.

                  [(c) The  Purchaser  has  knowledge of financial  and business
         matters  and is  capable  of  evaluating  the  merits  and  risks of an
         investment  in  the  Class  [A-PO][B-4][B-5][B-6]   Certificates;   the
         Purchaser  has sought such  accounting,  legal and tax advice as it has
         considered necessary to make an informed investment  decision;  and the
         Purchaser is able to bear the  economic  risk of an  investment  in the
         Class [A-PO][B-4][B-5][B-6] Certificates and can afford a complete loss
         of such investment.]

                  [(c) The Purchaser is a "Qualified Institutional Buyer" within
         the meaning of Rule 144A of the Act.]

                  (d)  The  Purchaser  confirms  that  (a) it has  received  and
         reviewed a copy of the Private  Placement  Memorandum  dated __________
         __, 19__, relating to the Class [A-PO][B-4][B-5][B-6]  Certificates and
         reviewed,  to the extent it deemed appropriate,  the documents attached
         thereto  or  incorporated  by  reference  therein,  (b) it has  had the
         opportunity  to ask questions  of, and receive  answers from the Seller
         concerning the Class [A-PO][B-4][B-5][B-6] Certificates and all matters
         relating  thereto,  and obtain any  additional  information  (including
         documents)   relevant   to  its   decision   to   purchase   the  Class
         [A-PO][B-4][B-5][B-6]  Certificates  that the Seller  possesses  or can
         possess  without   unreasonable  effort  or  expense  and  (c)  it  has
         undertaken its own independent  analysis of the investment in the Class
         [A-PO][B-4][B-5][B-6]  Certificates.  The  Purchaser  will  not  use or
         disclose any information it receives in connection with its purchase of
         the Class  [A-PO][B-4][B-5][B-6]  Certificates other than in connection
         with a subsequent sale of Class [A-PO][B-4][B-5][B-6] Certificates.

                  (e) Either (i) the  Purchaser is not an employee  benefit plan
         or other  retirement  arrangement  subject  to Title I of the  Employee
         Retirement  Income  Security  Act of 1974,  as amended,  ("ERISA"),  or
         Section  4975 of the  Internal  Revenue  Code of 1986,  as amended (the
         "Code"),  or a governmental  plan, as defined in Section 3(32) of ERISA
         subject to any federal, state or local law ("Similar Law") which is, to
         a material extent,  similar to the foregoing provisions of ERISA or the
         Code (collectively,  a "Plan"), an agent acting on behalf of a Plan, or
         a  person   utilizing   the  assets  of  a  Plan  or  (ii)  [for  Class
         [B-4][B-5][B-6]  Certificates  only] if the  Purchaser  is an insurance
         company,   (A)  the  source  of  funds  used  to  purchase   the  Class
         [B-4][B-5][B-6]  Certificate is an "insurance  company general account"
         (as such term is  defined  in Section  V(e) of  Prohibited  Transaction
         Class  Exemption  95-60 ("PTE  95-60"),  60 Fed.  Reg.  35925 (July 12,
         1995),  (B) there is no Plan with  respect  to which the amount of such
         general account's  reserves and liabilities for the contract(s) held by
         or on behalf of such Plan and all other  Plans  maintained  by the same
         employer  (or  affiliate  thereof as defined in Section  V(a)(1) of PTE
         95-60) or by the same employee organization exceeds 10% of the total of
         all reserves and  liabilities of such general  account (as such amounts
         are  determined  under  Section  I(a)  of PTE  95-60)  at the  date  of
         acquisition   and  (C)  the   purchase   and   holding  of  such  Class
         [B-4][B-5][B-6]  Certificates  are covered by Sections I and III of PTE
         95-60 or (iii) the  Purchaser has provided (a) a "Benefit Plan Opinion"
         satisfactory  to the Seller and the Trustee of the Trust Estate and (b)
         such other opinions of counsel,  officers'  certificates and agreements
         as the Seller or the Master Servicer may have required.  A Benefit Plan
         Opinion  is an opinion  of  counsel  to the  effect  that the  proposed
         transfer  will not cause the assets of the Trust  Estate to be regarded
         as "plan assets" and subject to the prohibited  transaction  provisions
         of ERISA, the Code or Similar Law and will not subject the Trustee, the
         Seller or the Master  Servicer to any  obligation  in addition to those
         undertaken  in the  Pooling  and  Servicing  Agreement  (including  any
         liability  for civil  penalties  or excise  taxes  imposed  pursuant to
         ERISA, Section 4975 of the Code or Similar Law).

                  (f) If the  Purchaser is a depository  institution  subject to
         the  jurisdiction  of the  Office of the  Comptroller  of the  Currency
         ("OCC"),  the Board of Governors of the Federal Reserve System ("FRB"),
         the  Federal  Deposit  Insurance  Corporation  ("FDIC"),  the Office of
         Thrift Supervision ("OTS") or the National Credit Union  Administration
         ("NCUA"),  the Purchaser has reviewed the "Supervisory Policy Statement
         on  Securities  Activities"  dated  January  28,  1992  of the  Federal
         Financial  Institutions  Examination  Council  and the April  15,  1994
         Interim Revision thereto as adopted by the OCC, FRB, FDIC, OTS and NCUA
         (with  modifications as applicable),  as appropriate,  other applicable
         investment  authority,  rules,  supervisory  policies and guidelines of
         these   agencies  and,  to  the  extent   appropriate,   state  banking
         authorities   and  has  concluded   that  its  purchase  of  the  Class
         [A-PO][B-4][B-5][B-6] Certificates is in compliance therewith.

     Section 3. Transfer of Class [A-PO][B-4][B-5][B-6] Certificates.

                  (a)    The    Purchaser    understands    that    the    Class
         [A-PO][B-4][B-5][B-6]  Certificates  have not been registered under the
         Securities  Act of 1933 (the  "Act") or any state  securities  laws and
         that no  transfer  may be made  unless the Class  [A-PO][B-4][B-5][B-6]
         Certificates  are registered  under the Act and applicable state law or
         unless an exemption  from  registration  is  available.  The  Purchaser
         further  understands  that neither the Seller,  the Master Servicer nor
         the   Trustee  is  under  any   obligation   to   register   the  Class
         [A-PO][B-4][B-5][B-6]  Certificates or make an exemption available.  In
         the  event  that  such a  transfer  is to be made in  reliance  upon an
         exemption  from the Act or applicable  state  securities  laws, (i) the
         Trustee shall require,  in order to assure  compliance  with such laws,
         that the  Certificateholder's  prospective  transferee  certify  to 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 the Seller may, if such  transfer is made within three years
         from the  later of (a) the  Closing  Date or (b) the last date on which
         the Seller or any  affiliate  thereof was a holder of the  Certificates
         proposed  to be  transferred,  require an Opinion of Counsel  that such
         transfer may be made  pursuant to an  exemption  from the Act and state
         securities  laws,  which  Opinion of Counsel shall not be an expense of
         the   Trustee,   the  Master   Servicer   or  the   Seller.   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 the  Seller  against  any
         liability  that may result if the  transfer  is not so exempt or is not
         made in accordance with such federal and state laws.

                  (b) No transfer of a Class  [A-PO][B-4][B-5][B-6]  Certificate
         shall be made unless the transferee provides the Seller and the Trustee
         with  a  Transferee's  Letter,   substantially  in  the  form  of  this
         Agreement.

                  (c)   The    Purchaser    acknowledges    that    its    Class
         [A-PO][B-4][B-5][B-6]  Certificates  bear a legend  setting  forth  the
         applicable restrictions on transfer.


<PAGE>


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

                                           [PURCHASER]


                                            By:  _______________________________

                                            Its:  ______________________________


<PAGE>


                                    EXHIBIT K


                      NORWEST ASSET SECURITIES CORPORATION


                       MORTGAGE PASS-THROUGH CERTIFICATES
                                 SERIES 1998-22
                      CLASS [B-1] [B-2] [B-3] CERTIFICATES


                               TRANSFEREE'S LETTER


                                                       ________________ __, ____

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

Norwest Asset Securities Corporation
7485 New Horizon Way
Frederick, Maryland 21703

     The  undersigned  (the  "Purchaser")  proposes  to purchase  Norwest  Asset
Securities Corporation Mortgage Pass-Through Certificates, Series 1998-22, Class
[B-1] [B-2] [B-3]  Certificates (the "Class [B-1] [B-2] [B-3]  Certificates") in
the  principal  amount  of  $___________.  In doing  so,  the  Purchaser  hereby
acknowledges and agrees as follows:

     Section 1. Definitions. Each capitalized term used herein and not otherwise
defined  herein  shall  have  the  meaning  ascribed  to it in the  Pooling  and
Servicing  Agreement,  dated as of August 27, 1998 (the  "Pooling and  Servicing
Agreement")  among  Norwest  Asset  Securities   Corporation,   as  seller  (the
"Seller"), Norwest Bank Minnesota, National Association, as master servicer (the
"Master  Servicer") and First Union National Bank, as trustee (the "Trustee") of
Norwest Asset Securities Corporation Mortgage Pass-Through Certificates,  Series
1998-22.

     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 or
         other  retirement  arrangement  subject  to  Title  I of  the  Employee
         Retirement  Income  Security  Act of 1974,  as amended,  ("ERISA"),  or
         Section  4975 of the  Internal  Revenue  Code of 1986,  as amended (the
         "Code"),  or a governmental  plan, as defined in Section 3(32) of ERISA
         subject to any federal, state or local law ("Similar Law") which is, to
         a material extent,  similar to the foregoing provisions of ERISA or the
         Code (collectively,  a "Plan"), an agent acting on behalf of a Plan, or
         a person  utilizing the assets of a Plan or (ii) if the Purchaser is an
         insurance  company,  (A) the source of funds used to purchase the Class
         [B-1] [B-2] [B-3] Certificate is an "insurance company general account"
         (as such term is  defined  in Section  V(e) of  Prohibited  Transaction
         Class  Exemption  95-60 ("PTE  95-60"),  60 Fed.  Reg.  35925 (July 12,
         1995),  (B) there is no Plan with  respect  to which the amount of such
         general account's  reserves and liabilities for the contract(s) held by
         or on behalf of such Plan and all other  Plans  maintained  by the same
         employer  (or  affiliate  thereof as defined in Section  V(a)(1) of PTE
         95-60) or by the same employee organization, exceed 10% of the total of
         all reserves and  liabilities of such general  account (as such amounts
         are  determined  under  Section  I(a)  of PTE  95-60)  at the  date  of
         acquisition   and  (C)  the   purchase   and   holding  of  such  Class
         [B-1][B-2][B-3]  Certificates  are covered by Sections I and III of PTE
         95-60 or (iii) the  Purchaser has provided (a) a "Benefit Plan Opinion"
         satisfactory  to the Seller and the Trustee of the Trust Estate and (b)
         such other opinions of counsel,  officers'  certificates and agreements
         as the Seller or the Master Servicer may have required.  A Benefit Plan
         Opinion  is an opinion  of  counsel  to the  effect  that the  proposed
         transfer  will not cause the assets of the Trust  Estate to be regarded
         as "plan assets" and subject to the prohibited  transaction  provisions
         of ERISA, the Code or Similar Law and will not subject the Trustee, the
         Seller or the Master  Servicer to any  obligation  in addition to those
         undertaken  in the  Pooling  and  Servicing  Agreement  (including  any
         liability  for civil  penalties  or excise  taxes  imposed  pursuant to
         ERISA, Section 4975 of the Code or Similar Law).

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

                                             [PURCHASER]


                                              By:  _____________________________

                                              Its: _____________________________

                                              [Reserved]


<PAGE>


                                    EXHIBIT L

                              SERVICING AGREEMENTS

                   Norwest Mortgage, Inc. Servicing Agreement

                   Citicorp Mortgage, Inc. Servicing Agreement

               The Huntington Mortgage Company Servicing Agreement


<PAGE>


                                    EXHIBIT M
                      [FORM OF SPECIAL SERVICING AGREEMENT]

                 SPECIAL SERVICING AND COLLATERAL FUND AGREEMENT

     This SPECIAL  SERVICING AND COLLATERAL FUND AGREEMENT (the  "Agreement") is
made  and  entered  into  as  of ,  between  Norwest  Bank  Minnesota,  National
Association (the "Company" and "Norwest Bank") and (the "Purchaser").

                              PRELIMINARY STATEMENT

     ________________  is the holder of the  entire  interest  in Norwest  Asset
Securities Corporation Mortgage Pass-Through Certificates, Series 1998-22, Class
____ (the "Class B Certificates"). The Class B Certificates were issued pursuant
to a Pooling and Servicing  Agreement  dated as of August 27, 1998 among Norwest
Asset Securities Corporation, as seller (the "Seller"),  Norwest Bank Minnesota,
National  Association,  as Master  Servicer and First Union  National  Bank,  as
Trustee.

     _____________________________   intends  to  resell  all  of  the  Class  B
Certificates directly to the Purchaser on or promptly after the date hereof.

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

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


                                    ARTICLE I

                                   DEFINITIONS

     Section 1.01 Defined Terms

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

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

     Collateral  Fund: The fund  established and maintained  pursuant to Section
3.01 hereof.

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

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

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

     Election to Delay  Foreclosure:  Any election by the Purchaser to delay the
Commencement of Foreclosure, made in accordance with Section 2.02(b).

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

     Monthly Advances:  Principal and interest  advances and servicing  advances
including costs and expenses of foreclosure.

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

     Section 1.02 Definitions Incorporated by Reference

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


                                   ARTICLE II

                          SPECIAL SERVICING PROCEDURES

     Section 2.01 Reports and Notices

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

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

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

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

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

     Section 2.02 Purchaser's Election to Delay Foreclosure Proceedings

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

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

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

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

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

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

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

     Section 2.03 Purchaser's Election to Commence Foreclosure Proceedings

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

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

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

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

     Section 2.04 Termination

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

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


                                   ARTICLE III

                       COLLATERAL FUND; SECURITY INTEREST

     Section 3.01. Collateral Fund

     Upon  receipt  from the  Purchaser  of the  initial  amount  required to be
deposited  in the  Collateral  Fund  pursuant to Article  II, the Company  shall
establish and maintain with Bankers Trust Company as a segregated account on its
books and records an account (the  "Collateral  Fund"),  entitled  "Norwest Bank
Minnesota,  National  Association,  as  Master  Servicer,  for  the  benefit  of
registered holders of Norwest Asset Securities Corporation Mortgage Pass-Through
Certificates, Series 1998-22. Amounts held in the Collateral Fund shall continue
to be the  property of the  Purchaser,  subject to the first  priority  security
interest  granted  hereunder  for the benefit of the  Certificateholders,  until
withdrawn from the Collateral Fund pursuant to Section 2.02 or 2.03 hereof.  The
Collateral  Fund shall be an "outside  reserve  fund"  within the meaning of the
REMIC  Provisions,  beneficially  owned by the Purchaser for federal  income tax
purposes.  All income,  gain,  deduction or loss with respect to the  Collateral
Fund shall be that of the Purchaser.  All  distributions  from the Trust Fund to
the  Collateral  Fund shall be treated as  distributed  to the  Purchaser as the
beneficial owner thereof.

     Upon the  termination of this Agreement and the liquidation of all Mortgage
Loans as to which the  Purchaser has made any Election to Delay  Foreclosure  or
any Election to Foreclose  pursuant to Section  2.04 hereof,  the Company  shall
distribute or cause to be distributed to the Purchaser all amounts  remaining in
the Collateral Fund (after adjustment for all deposits and permitted withdrawals
pursuant to this Agreement)  together with any investment  earnings thereon.  In
the  event the  Purchaser  has made any  Election  to Delay  Foreclosure  or any
Election to Foreclose, prior to any distribution to the Purchaser of all amounts
remaining in the Collateral  Fund, funds in the Collateral Fund shall be applied
consistent with the terms of this Agreement.

     Section 3.02. Collateral Fund Permitted Investments.

     The Company shall,  at the written  direction of the Purchaser,  invest the
funds in the  Collateral  Fund in Collateral  Fund Permitted  Investments.  Such
direction shall not be changed more frequently than quarterly. In the absence of
any direction,  the Company shall select such investments in accordance with the
definition of Collateral Fund Permitted Investments in its discretion.

     All income and gain  realized  from any  investment as well as any interest
earned  on  deposits  in  the  Collateral  Fund  (net  of  any  losses  on  such
investments)  and any  payments of principal  made in respect of any  Collateral
Fund  Permitted  Investment  shall be  deposited  in the  Collateral  Fund  upon
receipt.  All costs and realized losses associated with the purchase and sale of
Collateral  Fund Permitted  Investments  shall be borne by the Purchaser and the
amount  of net  realized  losses  shall be  deposited  by the  Purchaser  in the
Collateral Fund promptly upon realization.  The Company shall  periodically (but
not more  frequently  than monthly)  distribute to the Purchaser upon request an
amount of cash,  to the extent cash is  available  therefore  in the  Collateral
Fund,  equal to the amount by which the balance of the  Collateral  Fund,  after
giving effect to all other  distributions to be made from the Collateral Fund on
such  date,  exceeds  the  Required  Collateral  Fund  Balance.  Any  amounts so
distributed  shall be  released  from the lien  and  security  interest  of this
Agreement.

     Section 3.03. Grant of Security Interest

     The  Purchaser  hereby  grants  to  the  Company  for  the  benefit  of the
Certificateholders under the Pooling and Servicing Agreement a security interest
in and lien on all of the  Purchaser's  right,  title and interest,  whether now
owned or hereafter acquired, in and to: (1) the Collateral Fund, (2) all amounts
deposited in the Collateral  Fund and Collateral  Fund Permitted  Investments in
which such  amounts are  invested  (and the  distributions  and proceeds of such
investments)  and (3) all cash and  non-cash  proceeds of any of the  foregoing,
including  proceeds of the  voluntary  conversion  thereof (all of the foregoing
collectively, the "Collateral").

     The  Purchaser  acknowledges  the lien on and the security  interest in the
Collateral for the benefit of the  Certificateholders.  The Purchaser shall take
all actions  requested by the Company as may be reasonably  necessary to perfect
the security  interest  created under this Agreement in the Collateral and cause
it to be  prior  to all  other  security  interests  and  liens,  including  the
execution  and  delivery  to the  Company  for filing of  appropriate  financing
statements in accordance with applicable law. The Company shall file appropriate
continuation  statements,  or  appoint  an  agent  on its  behalf  to file  such
statements, in accordance with applicable law.

     Section 3.04. Collateral Shortfalls.

     In the event that amounts on deposit in the Collateral Fund at any time are
insufficient  to  cover  any  withdrawals  therefrom  that the  Company  is then
entitled to make hereunder, the Purchaser shall be obligated to pay such amounts
to the Company  immediately  upon demand.  Such  obligation  shall  constitute a
general corporate  obligation of the Purchaser.  The failure to pay such amounts
within two Business Days of such demand (except for amounts to cover interest on
a Mortgage  Loan  pursuant  to Sections  2.02(d)  and 2.03 (b)),  shall cause an
immediate  termination  of the  Purchaser's  right to make any Election to Delay
Foreclosure  or Election to Foreclose and the Company's  obligations  under this
Agreement  with  respect to all  Mortgage  Loans to which  such  insufficiencies
relate, without the necessity of any further notice or demand on the part of the
Company.


                                   ARTICLE IV

                            MISCELLANEOUS PROVISIONS


     Section 4.01. Amendment.

     This  Agreement  may be amended  from time to time by the  Company  and the
Purchaser by written agreement signed by the Company and the Purchaser.

     Section 4.02. Counterparts.

     This   Agreement   may  be  executed   simultaneously   in  any  number  of
counterparts,  each of which counterparts shall be deemed to be an original, and
such counterparts shall constitute but one and the same instrument.

     Section 4.03. Governing Law.

     This Agreement  shall be construed in accordance with the laws of the State
of New York and the  obligations,  rights and remedies of the parties  hereunder
shall be determined in accordance with such laws.

     Section 4.04. Notices.

     All  demands,  notices and  direction  hereunder  shall be in writing or by
telecopy and shall be deemed effective upon receipt to:

     (a) in the case of the Company,

         Norwest Bank Minnesota, National Association
         7485 New Horizon Way
         Frederick, MD  21703

         Attention:       Vice President, Master Servicing
         Phone:           301-696-7800
         Fax:             301-815-6365


     (b) in the case of the Purchaser,

         _____________________________
         _____________________________
         _____________________________
         _____________________________
         Attention:___________________


     Section 4.05. Severability of Provisions.

     If any one or more of the covenants, agreements, provision or terms of this
Agreement  shall  be for  any  reason  whatsoever,  including  regulatory,  held
invalid, then such covenants, agreements,  provisions or terms of this Agreement
and  shall  in no way  affect  the  validity  or  enforceability  of  the  other
provisions of this Agreement.

     Section 4.06. Successors and Assigns.

     The  provisions  of this  Agreement  shall be binding upon and inure to the
benefit of the respective  successors and assigns of the parties hereto, and all
such provisions shall inure to the benefit of the Certificateholders;  provided,
however,  that the  rights  under  this  Agreement  cannot  be  assigned  by the
Purchaser without the consent of the Company.

     Section 4.07. Article and Section Headings.

     The article and section  headings  herein are for  convenience of reference
only and shall not limit or otherwise affect the meaning hereof.

     Section 4.08. Confidentiality.

     The Purchaser  agrees that all information  supplied by or on behalf of the
Company  pursuant  to  Sections  2.01  or  2.02,  including  individual  account
information,  is the  property of the Company and the  Purchaser  agrees to hold
such information confidential and not to disclose such information.

     Each party  hereto  agrees  that  neither  it, nor any  officer,  director,
employee,  affiliate or independent  contractor acting at such party's direction
will  disclose  the terms of  Section  4.09 of this  Agreement  to any person or
entity  other  than such  party's  legal  counsel  except  pursuant  to a final,
non-appealable  order of court,  the pendency of such order the other party will
have  received  notice of at least five business days prior to the date thereof,
or pursuant to the other party's prior express written consent.

     Section 4.09. Indemnification.

     The  Purchaser  agrees to indemnify  and hold  harmless  the  Company,  the
Seller, and each Servicer and each person who controls the Company,  the Seller,
or a Servicer and each of their respective officers,  directors,  affiliates and
agents acting at the  Company's,  the Seller's,  or a Servicer's  direction (the
"Indemnified   Parties")  against  any  and  all  losses,   claims,  damages  or
liabilities  to which  they may be  subject,  insofar  as such  losses,  claims,
damages or  liabilities  (or  actions in respect  thereof)  arise out of, or are
based upon, actions taken by, or actions not taken by, the Company,  the Seller,
or a Servicer,  or on their behalf,  in accordance  with the  provisions of this
Agreement and (i) which actions conflict with the Company's,  the Seller's, or a
Servicer's  obligations under the Pooling and Servicing Agreement or the related
Servicing Agreement, or (ii) give rise to securities law liability under federal
or state securities laws with respect to the Certificates.  The Purchaser hereby
agrees to reimburse the  Indemnified  Parties for the reasonable  legal or other
expenses incurred by them in connection with investigating or defending any such
loss, claim, damage, liability or action. The indemnification obligations of the
Purchaser  hereunder  shall  survive  the  termination  or  expiration  of  this
Agreement.


<PAGE>


     IN WITNESS  WHEREOF,  the Company and the Purchaser have caused their names
to be signed hereto by their respective officers thereunto duly authorized,  all
as of the day and year first above written.


                                                Norwest Bank Minnesota, National
                                                Association


                                                By:_____________________________
                                                Name:___________________________
                                                Title:__________________________


                                                 _______________________________


                                                By:_____________________________
                                                Name:___________________________
                                                Title:__________________________



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