NORWEST ASSET SEC CORP MORT PASS THR CERT SER 1999 3 TRUST
8-K, 1999-11-03
ASSET-BACKED SECURITIES
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                             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: January 28, 1999
(Date of earliest event reported)

Commission File No. 333-65481



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



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



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



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



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





<PAGE>




ITEM 5. Other Events

On  January  28,  1999,  Norwest  Asset  Securities   Corporation,   a  Delaware
corporation (the "Registrant"),  sold Mortgage Pass-Through Certificates, Series
1999-3,  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 $248,438,100. The Offered Certificates were issued
pursuant to a Pooling and  Servicing  Agreement,  dated as of January 28,  1999,
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  1999-3,  Class  A-PO
Certificates,  having an aggregate initial principal balance of $442,000.98, and
Class B-4,  Class B-5 and Class B-6  Certificates,  having an aggregate  initial
principal  balance of  $1,125,485.88  (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  99.37%  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
                            January  28,  1999,   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


January 28, 1999

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





<PAGE>




                                INDEX TO EXHIBITS


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

   (EX-4)              Pooling and Servicing Agreement,            E
                       dated as of January 28, 1999 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 January 28, 1999

                               $250,005,586.86

                       Mortgage Pass-Through Certificates
                                  Series 1999-3




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


<PAGE>


                                TABLE OF CONTENTS

                                                                            Page


                                    ARTICLE I

                                   DEFINITIONS

Section 1.01  Definitions....................................................1
Section 1.02  Acts of Holders...............................................43
Section 1.03  Effect of Headings and Table of Contents......................44
Section 1.04  Benefits of Agreement.........................................44


                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                      ORIGINAL ISSUANCE OF THE CERTIFICATES

Section 2.01  Conveyance of Mortgage Loans...................................1
Section 2.02  Acceptance by Trustee..........................................2
Section 2.03  Representations and Warranties of the
               Master Servicer and the Seller................................3
Section 2.04  Execution and Delivery of Certificates.........................9
Section 2.05  Designation of Certificates; Designation of
               Startup Day and Latest Possible Maturity Date.................9


                                   ARTICLE III

                ADMINISTRATION OF THE TRUST ESTATE: SERVICING
                              OF THE MORTGAGE LOANS

Section 3.01  Certificate Account............................................1
Section 3.02  Permitted Withdrawals from the Certificate Account.............2
Section 3.03  Advances by Master Servicer and Trustee........................3
Section 3.04  Trustee to Cooperate;
               Release of Owner Mortgage Loan Files..........................4
Section 3.05  Reports to the Trustee;
               Annual Compliance Statements..................................5
Section 3.06  Title, Management and Disposition
               of Any REO Mortgage Loan......................................6
Section 3.07  Amendments to Servicing Agreements,
               Modification of Standard Provisions...........................7
Section 3.08  Oversight of Servicing.........................................8
Section 3.09  Termination and Substitution of Servicing Agreements..........10
Section 3.10  Application of Net Liquidation Proceeds.......................11
Section 3.11  Act Reports...................................................11


                                   ARTICLE IV

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

Section 4.01  Distributions..................................................1
Section 4.02  Allocation of Realized Losses..................................7
Section 4.03  Paying Agent...................................................9
Section 4.04  Statements to Certificateholders;
               Report to the Trustee and the Seller.........................10
Section 4.05  Reports to Mortgagors and the Internal Revenue Service........13
Section 4.06  Calculation of Amounts; Binding Effect of
               Interpretations and Actions of Master Servicer...............14


                                    ARTICLE V

                                THE CERTIFICATES

Section 5.01  The Certificates...............................................1
Section 5.02  Registration of Certificates...................................2
Section 5.03  Mutilated, Destroyed, Lost or Stolen Certificates..............6
Section 5.04  Persons Deemed Owners..........................................6
Section 5.05  Access to List of Certificateholders' Names and Addresses......6
Section 5.06  Maintenance of Office or Agency................................7
Section 5.07  Definitive Certificates........................................7
Section 5.08  Notices to Clearing Agency.....................................7


                                   ARTICLE VI

                       THE SELLER AND THE MASTER SERVICER

Section 6.01  Liability of the Seller and the Master Servicer................1
Section 6.02  Merger or Consolidation of the Seller or the Master
               Servicer......................................................1
Section 6.03  Limitation on Liability of the Seller,
               the Master Servicer and Others................................1
Section 6.04  Resignation of the Master Servicer.............................2
Section 6.05  Compensation to the Master Servicer............................2
Section 6.06  Assignment or Delegation of Duties by Master Servicer..........2
Section 6.07  Indemnification of Trustee
               and Seller by Master Servicer.................................3
Section 6.08  Master Servicer Year 2000 Compliance...........................3


                                   ARTICLE VII

                                     DEFAULT

Section 7.01  Events of Default..............................................1
Section 7.02  Other Remedies of Trustee......................................2
Section 7.03  Directions by Certificateholders and
               Duties of Trustee During Event of Default.....................2
Section 7.04  Action upon Certain Failures of the
               Master Servicer and upon Event of Default.....................3
Section 7.05  Trustee to Act; Appointment of Successor.......................3
Section 7.06  Notification to Certificateholders.............................4


                                  ARTICLE VIII

                             CONCERNING THE TRUSTEE

Section 8.01  Duties of Trustee..............................................1
Section 8.02  Certain Matters Affecting the Trustee..........................2
Section 8.03  Trustee Not Required to Make Investigation.....................2
Section 8.04  Trustee Not Liable for Certificates or Mortgage Loans..........3
Section 8.05  Trustee May Own Certificates...................................3
Section 8.06  The Master Servicer to Pay Fees and Expenses...................3
Section 8.07  Eligibility Requirements.......................................3
Section 8.08  Resignation and Removal........................................4
Section 8.09  Successor......................................................4
Section 8.10  Merger or Consolidation........................................5
Section 8.11  Authenticating Agent...........................................5
Section 8.12  Separate Trustees and Co-Trustees..............................6
Section 8.13  Appointment of Custodians......................................7
Section 8.14  Tax Matters; Compliance with REMIC Provisions..................8
Section 8.15  Monthly Advances..............................................10
Section 8.16  Trustee Year 2000 Compliance..................................10


                                   ARTICLE IX

                                   TERMINATION

Section 9.01  Termination upon Purchase by the
               Seller or Liquidation of All Mortgage Loans...................1
Section 9.02  Additional Termination Requirements............................3


                                    ARTICLE X

                            MISCELLANEOUS PROVISIONS

Section 10.01 Amendment......................................................1
Section 10.02 Recordation of Agreement.......................................2
Section 10.03 Limitation on Rights of Certificateholders.....................3
Section 10.04 Governing Law; Jurisdiction....................................3
Section 10.05 Notices........................................................3
Section 10.06 Severability of Provisions.....................................4
Section 10.07 Special Notices to Rating Agencies.............................4
Section 10.08 Covenant of Seller.............................................5
Section 10.09 Recharacterization.............................................5


                                   ARTICLE XI

                             TERMS FOR CERTIFICATES

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


                                    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 1999-3 Certificates
EXHIBIT D         -     Reserved
EXHIBIT E         -     Custodial Agreement
EXHIBIT F-1       -     Schedule of Mortgage Loans Serviced by Norwest
                        Mortgage
EXHIBIT F-2       -     Schedule of Mortgage Loans Serviced by Other Servicers
EXHIBIT G         -     Request for Release
EXHIBIT H         -     Affidavit Pursuant to Section 860E(e)(4) of the
                        Internal Revenue Code of 1986, as amended, and for
                        Non-ERISA Investors
EXHIBIT I         -     Letter from Transferor of Residual Certificates
EXHIBIT J         -     Transferee's Letter (Class [A-PO][B-4] [B-5] [B-6]
                        Certificates)
EXHIBIT K         -     Transferee's Letter (Class [B-1] [B-2] [B-3]
                        Certificates)
EXHIBIT L         -     Servicing Agreements
EXHIBIT M         -     Form of Special Servicing Agreement


      This  Pooling  and  Servicing  Agreement,  dated as of  January  28,  1999
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 Directed Certificates: The Class A-3 Certificates.

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

      Accrual Certificates: The Class A-4 Certificates.

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

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

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

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

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

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

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

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

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

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

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

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

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

      Authenticating  Agent: Any authenticating agent appointed by the 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
$105,782.15  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 and 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 Accrual 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 Accrual
Certificates  pursuant  to  Paragraphs  first,  second  and third  clause (A) of
Section 4.01(a).  As to any Distribution  Date and the Class A-PO  Certificates,
the amount  distributable to the Class A-PO Certificates  pursuant to Paragraphs
third clause (B) and fourth of Section 4.01(a) on such Distribution Date.

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

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

      Class A Interest Percentage:  As to any Distribution Date and any Class of
Class A Certificates  (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  Accrual
Certificates prior to the Accretion Termination Date, the amount included in the
Accrual Distribution Amount pursuant to clause (i) of the definition thereof.

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

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

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

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

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

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

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

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

            (iv) the Class A  Percentage  of the excess of the unpaid  principal
      balance of such Mortgage Loan  substituted  for a defective  Mortgage Loan
      during  the month  preceding  the month in which  such  Distribution  Date
      occurs over the unpaid principal balance of such defective  Mortgage Loan,
      less the amount  allocable to the  principal  portion of any  unreimbursed
      Periodic Advances previously made by the applicable  Servicer,  the Master
      Servicer or the 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 January 2004,  100%. As to any Distribution
Date  subsequent  to January  2004 to and  including  the  Distribution  Date in
January 2005,  the Class A Percentage as of such  Distribution  Date plus 70% of
the Subordinated Percentage as of such Distribution Date. As to any Distribution
Date  subsequent  to January  2005 to and  including  the  Distribution  Date in
January 2006,  the Class A Percentage as of such  Distribution  Date plus 60% of
the Subordinated Percentage as of such Distribution Date. As to any Distribution
Date  subsequent  to January  2006 to and  including  the  Distribution  Date in
January 2007,  the Class A Percentage as of such  Distribution  Date plus 40% of
the Subordinated Percentage as of such Distribution Date. As to any Distribution
Date  subsequent  to January  2007 to and  including  the  Distribution  Date in
January 2008,  the Class A Percentage as of such  Distribution  Date plus 20% of
the Subordinated Percentage as of such Distribution Date. As to any Distribution
Date subsequent to January 2008, the Class A Percentage as of such  Distribution
Date.  The  foregoing  is  subject  to  the  following:  (i)  if  the  aggregate
distribution to Holders of Class A Certificates on any Distribution  Date of the
Class A  Prepayment  Percentage  provided  above  of (a)  Unscheduled  Principal
Receipts distributable on such Distribution Date would reduce the Class A Non-PO
Principal  Balance  below  zero,  the  Class A  Prepayment  Percentage  for such
Distribution Date shall be the percentage  necessary to bring the Class A Non-PO
Principal Balance to zero and thereafter the Class A Prepayment Percentage shall
be zero  and  (ii) if the  Class A  Percentage  as of any  Distribution  Date is
greater than the Original Class A Percentage,  the Class A Prepayment Percentage
for such Distribution Date shall be 100%.  Notwithstanding  the foregoing,  with
respect to any  Distribution  Date on which the following  criteria are not met,
the  reduction  of the Class A  Prepayment  Percentage  described  in the second
through  sixth  sentences of this  definition  of Class A Prepayment  Percentage
shall not be applicable with respect to such  Distribution  Date. In such event,
the Class A Prepayment  Percentage for such Distribution Date will be determined
in accordance with the applicable  provision,  as set forth in the first through
fifth  sentences  above,  which  was  actually  used to  determine  the  Class A
Prepayment  Percentage  for  the  Distribution  Date  occurring  in the  January
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  February 2004 and January 2005,
(2) 35% of the  Original  Class B Principal  Balance if such  Distribution  Date
occurs  between and including  February  2005 and January  2006,  (3) 40% of the
Original Class B Principal  Balance if such Distribution Date occurs between and
including  February  2006 and  January  2007,  (4) 45% of the  Original  Class B
Principal  Balance  if such  Distribution  Date  occurs  between  and  including
February  2007 and January 2008,  and (5) 50% of the Original  Class B Principal
Balance if such  Distribution  Date occurs during or after February  2008.  With
respect to any Distribution  Date on which the Class A Prepayment  Percentage is
reduced below the Class A Prepayment Percentage for the prior Distribution Date,
the Master  Servicer  shall  certify  to the  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 Accrual Certificates prior to the Accretion  Termination Date, the amount
included  in the  Accrual  Distribution  Amount  pursuant  to clause (ii) of the
definition  thereof) on prior Distribution Dates pursuant to Paragraph second of
Section 4.01(a).

      Class A-1 Certificate: Any one of the Certificates executed by the 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,  6.000% 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 either of them.  Neither a Servicer,  nor the Seller nor
the Master  Servicer  nor any  Person  directly  or  indirectly  controlling  or
controlled  by or under  common  control  with any such Person may be  appointed
Custodian.

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

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

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

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

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

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

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

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

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

      Discount  Mortgage  Loan: A Mortgage  Loan with a Net Mortgage  Interest
Rate of less than 6.000%.

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

      Fixed Retained  Yield:  The fixed  percentage of interest on each Mortgage
Loan with a Mortgage  Interest Rate greater than the sum of (a) 6.000%,  (b) the
applicable  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) 6.000%,  (ii) the  applicable  Servicing Fee
Rate and (iii) the Master Servicing Fee Rate.

      FNMA: Fannie Mae or any successor thereto.

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

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

      Fraud Loss Amount:  As of any Distribution  Date after the Cut-Off Date an
amount  equal to:  (X) prior to the first  anniversary  of the  Cut-Off  Date an
amount  equal to  $5,000,111.74  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),  (a) the product
of (i)  1/12th  of the  Class A  Pass-Through  Rate for such  Class and (ii) the
Principal  Balance of such Class as of the  Determination  Date  preceding  such
Distribution Date minus (b) the Class A Interest Percentage of such Class of (i)
any Non-Supported  Interest Shortfall allocated to the Class A Certificates with
respect  to such  Distribution  Date,  (ii) the  interest  portion of any Excess
Special  Hazard  Losses,  Excess  Fraud  Losses  and  Excess  Bankruptcy  Losses
allocated to the Class A  Certificates  with respect to such  Distribution  Date
pursuant  to Section  4.02(e)  and (iii) the  interest  portion of any  Realized
Losses (other than Excess Special Hazard Losses,  Excess Fraud Losses and Excess
Bankruptcy  Losses)  allocated  to the  Class A  Certificates  on or  after  the
Cross-Over Date pursuant to Section 4.02(e). The Class A-PO Certificates have no
Interest Accrual Amount.

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

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

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

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

      Month End Interest: As defined in each Servicing Agreement.

      Monthly Payment: As to any Mortgage Loan (including any REO Mortgage Loan)
and any Due  Date,  the  payment  of  principal  and  interest  due  thereon  in
accordance with the amortization  schedule at the time applicable thereto (after
adjustment for any Curtailments and Deficient Valuations occurring prior to such
Due Date but before any adjustment to such amortization schedule, other than for
Deficient  Valuations,  by reason of any bankruptcy or similar proceeding or any
moratorium or similar waiver or grace period).

      Mortgage: The mortgage, deed of trust or other instrument creating a first
lien on Mortgaged  Property  securing a Mortgage Note together with any Mortgage
Loan Rider, if applicable.

      Mortgage  Interest  Rate: As to any Mortgage  Loan,  the per annum rate at
which interest accrues on the unpaid  principal  balance thereof as set forth in
the related  Mortgage  Note,  which rate is as indicated  on the  Mortgage  Loan
Schedule.

      Mortgage Loan  Purchase  Agreement:  The mortgage loan purchase  agreement
dated as of January  28,  1999  between  Norwest  Mortgage,  as seller,  and the
Seller, as purchaser.

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

      Mortgage Loan Schedule:  The list of the Mortgage Loans transferred to the
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 applicable 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 applicable  Servicing Fee Rate, (b) the Master Servicing Fee Rate 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 6.000%.

      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 or  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.

      PAC Certificates: The Class A-1 and Class A-2 Certificates.

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

      Partial  Liquidation  Proceeds:   Liquidation  Proceeds  received  by  a
Servicer  prior to the  month in which  the  related  Mortgage  Loan  became a
Liquidated Loan.

      Partial Unscheduled  Principal Receipt: An Unscheduled Principal Receipt
which is not a Full Unscheduled Principal Receipt.

      Paying Agent: The Person authorized on behalf of the Trustee, as agent for
the Master Servicer, to make distributions to Certificateholders with respect to
the  Certificates and to forward to  Certificateholders  the periodic and annual
statements required by Section 4.04. The Paying Agent may be any Person directly
or indirectly  controlling  or  controlled  by or under common  control with the
Master Servicer and may be the Trustee. The initial Paying Agent is appointed in
Section 4.03(a).

      Payment Account: The account maintained pursuant to Section 4.03(b).

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

      Premium  Mortgage  Loan: A Mortgage  Loan with a Net  Mortgage  Interest
Rate of 6.000% or greater.

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

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

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

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

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

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

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

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

      Priority   Percentage:   The   Principal   Balance   of  the   Class A-5
Certificates divided by the Class A Non-PO Principal Balance.

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

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

      Rating Agency: Any nationally recognized statistical credit rating agency,
or its  successor,  that rated one or more  Classes of the  Certificates  at the
request of the Seller at the time of the initial  issuance of the  Certificates.
The Rating Agencies for the Class A Certificates  and Class B-1 Certificates are
DCR and S&P. The Rating Agency for the Class B-2, Class B-3, Class B-4 and Class
B-5  Certificates  is DCR.  If any such  agency or a  successor  is no longer in
existence,  "Rating Agency" shall be such statistical  credit rating agency,  or
other comparable Person,  designated by the Seller,  notice of which designation
shall be given to the Trustee and the Master Servicer.  References herein to the
highest  short-term  rating  category of a Rating  Agency shall mean D-1+ in the
case of DCR,  A-1+ in the case of S&P and in the case of any other Rating Agency
shall mean its  equivalent  of such  ratings.  References  herein to the highest
long-term  rating  categories of a Rating Agency shall mean AAA, 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.

      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,  GMAC  Mortgage  Corporation,  The
Huntington  Mortgage  Company,  Citicorp  Mortgage,  Inc., Star Bank and Bank of
America NT & SA, 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
February 1999 through January 2004                0%
February 2004 through January 2005                30%
February 2005 through January 2006                40%
February 2006 through January 2007                60%
February 2007 through January 2008                80%
February 2008 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  $2,500,055.87  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.

      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.

      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.

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

      Unscheduled  Principal Amount: The sum for each outstanding  Mortgage Loan
(including  each defaulted  Mortgage Loan,  other than a Liquidated  Loan,  with
respect to which the related  Mortgaged  Property has been acquired by the Trust
Estate) of the product of (A) the Non-PO Fraction for such Mortgage Loan and (B)
the sum of the amounts  described in clauses y(ii) and y(iii) of the  definition
of Class A Non-PO Optimal Principal Amount.

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

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

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

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

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

            SECTION 1.02  ACTS OF HOLDERS.

            (a) Any request, demand, authorization,  direction, notice, consent,
waiver  or  other  action  provided  by this  Agreement  to be given or taken by
Holders  may  be  embodied  in and  evidenced  by one  or  more  instruments  of
substantially similar tenor signed by such Holders in person or by an agent duly
appointed in writing. Except as herein otherwise expressly provided, such action
shall become  effective when such instrument or instruments are delivered to the
Trustee.  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
February 25, 2029 for purposes of Code Section 860G(a)(1).


<PAGE>


                                   ARTICLE III

                ADMINISTRATION OF THE TRUST ESTATE: SERVICING
                              OF THE MORTGAGE LOANS

            SECTION 3.01  CERTIFICATE ACCOUNT.

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

            (b) The Master Servicer shall deposit into the  Certificate  Account
on the day of receipt  thereof  all  amounts  received  by it from any  Servicer
pursuant to any of the Servicing  Agreements,  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 addition,  if
under the terms of an Other Servicing Agreement,  the applicable Servicer is not
required to make  Periodic  Advances  on a Mortgage  Loan or REO  Mortgage  Loan
through the  liquidation  of such Mortgage Loan or REO Mortgage Loan, the Master
Servicer to the extent provided hereby shall make the Periodic  Advances thereon
during the period the Servicer is not  obligated to do so. 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,
including any amount the Master Servicer is required to advance  pursuant to the
second sentence of this Section 3.03(a) 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 a
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).

               (i) 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 (i) any defaulted
Mortgage Loan or any Mortgage Loan as to which default is reasonably foreseeable
from the Trust Estate if, in the Seller's judgment, the default is not likely to
be cured by the  Mortgagor or (ii) any Mortgage  Loan in the Trust Estate which,
pursuant to paragraph  5(b) of the Mortgage  Loan  Purchase  Agreement,  Norwest
Mortgage  requests the Seller to repurchase  and to sell to Norwest  Mortgage to
facilitate the exercise of Norwest Mortgage's rights against the originator or a
prior holder of such  Mortgage  Loan.  The purchase  price for any such Mortgage
Loan shall be 100% of the unpaid  principal  balance of such  Mortgage Loan plus
accrued interest  thereon at the Mortgage  Interest Rate for such Mortgage Loan,
through  the last day of the month in which  such  repurchase  occurs.  Upon the
receipt of such purchase price, the Master Servicer shall provide to the 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  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 sum of the  Class A  Interest  Accrual  Amount  with  respect  to such
      Distribution Date; provided that prior to the Accretion  Termination Date,
      an amount  equal to the amount that would  otherwise be  distributable  in
      respect of interest to the Accrual Certificates pursuant to this provision
      will instead be  distributed  in reduction  of the  Principal  Balances of
      certain Classes of Class A  Certificates,  in each case in accordance with
      Section 4.01(b);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

      I.    On  each   Distribution   Date  occurring  prior  to  the  Accretion
Termination Date, the Accrual Distribution Amount will be allocated sequentially
as follows:

            first, to the Class A-3 Certificates,  until the Principal Balance
      thereof has been reduced to zero; and

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

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

            first,  to the Class A-5  Certificates,  up to the Priority Amount
      for such Distribution Date;

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

            third,  to the Class A-1  Certificates,  up to their PAC Principal
      Amount for such Distribution Date;

            fourth, to the Class A-2  Certificates,  up to their PAC Principal
      Amount for such Distribution Date;

            fifth, sequentially, to the Class A-3 and Class A-4 Certificates, in
      that  order,  until the  Principal  Balance  of each  such  Class has been
      reduced to zero;

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

            seventh,  to the  Class  A-5  Certificates,  without  regard  to the
      Priority Amount for such  Distribution  Date, until the Principal  Balance
      thereof has been reduced to zero.

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

      The  following  tables set forth for each  Distribution  Date the  planned
Principal  Balances for the PAC  Certificates,  expressed as a percentage of the
Original Principal Balance of such Class.

<TABLE>
                                                     PLANNED PRINCIPAL BALANCES
                                            AS PERCENTAGES OF ORIGINAL PRINCIPAL BALANCE

                                                       CLASS A-1 CERTIFICATES
                          PERCENTAGE OF                               PERCENTAGE OF                                PERCENTAGE OF
                            ORIGINAL                                    ORIGINAL                                     ORIGINAL
   DISTRIBUTION DATE    PRINCIPAL BALANCE      DISTRIBUTION DATE    PRINCIPAL BALANCE     DISTRIBUTION DATE      PRINCIPAL BALANCE
   -----------------    -----------------      -----------------    -----------------     -----------------      -----------------
<S>                     <C>                  <C>                    <C>                  <C>                    <C>
January 1999........      100.00000000%      September 1999......      78.38496269%      May 2000............       38.80528088%
February 1999.......       98.31531891       October 1999........      74.39384667       June 2000...........       32.67082359
March 1999..........       96.33759572       November 1999.......      70.12324922       July 2000...........       26.28620973
April 1999..........       94.06795703       December 1999......       65.57597877       August 2000.........       19.65615716
May 1999............       91.50739614       January 2000........      60.75509574       September 2000......       12.78560089
June 1999...........       88.65716854       February 2000.......      55.66390925       October 2000........        5.67968714
July 1999...........       85.51879145       March 2000..........      50.30597411       November 2000
August 1999.........       82.09404332       April 2000..........      44.68508668         and thereafter....        0.00000000

</TABLE>

                                                       CLASS A-2 CERTIFICATES

<TABLE>
                             PERCENTAGE OF                               PERCENTAGE OF                                PERCENTAGE OF
                               ORIGINAL                                    ORIGINAL                                     ORIGINAL
 DISTRIBUTION DATE        PRINCIPAL BALANCE     DISTRIBUTION DATE    PRINCIPAL BALANCE     DISTRIBUTION DATE      PRINCIPAL BALANCE
 -----------------        -----------------     -----------------    -----------------     -----------------      -----------------
<S>                       <C>                  <C>                   <C>                   <C>                    <C>
Up to and including                             September 2002......      54.92127836%      September 2004......       16.30521416%
October 2000........         100.00000000%      October 2002........      53.06299249       October 2004........       15.12430691
November 2000.......          99.57901525       November 2002.......      51.22271062       November 2004.......       13.98319427
December 2000.......          97.65730277       December 2002.......      49.40026491       December 2004.......       12.88070828
January 2001........          95.67999674       January 2003........      47.59548906       January 2005........       11.81571442
February 2001.......          93.64860328       February 2003.......      45.80821836       February 2005.......       10.87231207
March 2001..........          91.56467345       March 2003..........      44.03828960       March 2005..........        9.96234295
April 2001..........          89.42980124       April 2003..........      42.28554109       April 2005..........        9.08479151
May 2001............          87.24562158       May 2003............      40.54981265       May 2005............        8.23867170
June 2001...........          85.07511627       June 2003...........      38.83094557       June 2005...........        7.42302609
July 2001...........          82.92552459       July 2003...........      37.12878266       July 2005...........        6.63692512
August 2001.........          80.79665172       August 2003.........      35.44316813       August 2005.........        5.87946623
September 2001......          78.68830459       September 2003......      33.77394767       September 2005......        5.14977315
October 2001........          76.60029198       October 2003........      32.12096842       October 2005........        4.44699514
November 2001.......          74.53242440       November 2003.......      30.48407892       November 2005.......        3.77030629
December 2001.......          72.48451414       December 2003.......      28.86312911       December 2005.......        3.11890476
January 2002........          70.45637524       January 2004........      27.25797033       January 2006........        2.49201217
February 2002.......          68.44782344       February 2004.......      25.76948883       February 2006.......        2.03029571
March 2002..........          66.45867621       March 2004..........      24.29621873       March 2006..........        1.58699504
April 2002..........          64.48875271       April 2004..........      22.85001634       April 2006..........        1.16149442
May 2002............          62.53787378       May 2004............      21.45137548       May 2006............        0.75319711
June 2002...........          60.60586191       June 2004...........      20.09890605       June 2006...........        0.36152476
July 2002...........          58.69254126       July 2004...........      18.79125766       July 2006...........
August 2002.........          56.79773761       August 2004.........      17.52711847         and thereafter....        0.00000000
</TABLE>



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

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

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

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

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

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

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

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

            (e) On each Distribution Date other than the Final Distribution Date
(if such Final  Distribution Date is in connection with a purchase of the assets
of the Trust  Estate by the Seller),  the Paying  Agent shall,  on behalf of the
Master Servicer, from funds remitted to it by the Master Servicer, distribute to
each  Certificateholder  of record on the  preceding  Record Date (other than as
provided in Section 9.01 respecting the final distribution to Certificateholders
or  in  the  last  paragraph  of  this  Section  4.01(e)  respecting  the  final
distribution  in respect of any Class) either in immediately  available funds by
wire transfer to the account of such Certificateholder at a bank or other entity
having  appropriate  facilities  therefor,  if  such   Certificateholder   holds
Certificates  having a Denomination  at least equal to that specified in Section
11.23,  and has so notified the Master  Servicer or, if  applicable,  the Paying
Agent at least seven  Business Days prior to the  Distribution  Date or, if such
Holder holds Certificates having, in the aggregate, a Denomination less than the
requisite minimum Denomination or if such Holder holds the Class A-R Certificate
or has not so notified the Paying  Agent,  by check mailed to such Holder at the
address of such Holder  appearing in the  Certificate  Register,  such  Holder's
share of the Class A  Distribution  Amount with respect to each Class of Class A
Certificates and the Class B Distribution Amount with respect to each such Class
of 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;  REPORT 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 B 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-PO,
Class A-R, Class B-5 and Class B-6 Certificates, integral multiples of $1,000 in
excess thereof (except,  if necessary,  for one Certificate of each Class (other
than the Class  A-PO,  Class  A-R,  Class B-5 and Class B-6  Certificates)  that
evidences one Single  Certificate plus such additional  principal  portion as is
required  in order for all  Certificates  of such  Class to equal the  aggregate
Original  Principal  Balance of such Class),  and shall be  substantially in the
respective  forms set forth as Exhibits A-1, A-2, A-3, A-4, A-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 Seller or its agent for  registration of transfer,
exchange or payment,  and any  certificate  issued is  registered in the name of
[the  Clearing  Agency]  or  such  other  name  as  requested  by an  authorized
representative of [the Clearing Agency] and any payment is made to [the Clearing
Agency],  any transfer,  pledge or other use hereof for value or otherwise by or
to any person is wrongful  since the  registered  owner  hereof,  [the  Clearing
Agency], has an interest herein."

            (b) Upon original  issuance,  the Book-Entry  Certificates  shall be
issued in the form of one or more typewritten  certificates,  to be delivered to
The Depository Trust Company,  the initial Clearing Agency, by, or on behalf of,
the Seller.  Such Certificates  shall initially be registered in the Certificate
Register  in the name of the  nominee of the  initial  Clearing  Agency,  and no
Beneficial  Owner  will  receive  a  definitive  certificate  representing  such
Beneficial Owner's interest in the Book-Entry  Certificates,  except as provided
in Section 5.07.  Unless and until  definitive,  fully  registered  certificates
("Definitive  Certificates")  have been issued to Beneficial  Owners pursuant to
Section 5.07:

               (i)the  provisions  of this  Section 5.01(b)  shall  be in full
      force and effect;

               (ii) the Seller, the Master Servicer,  the Certificate  Registrar
      and the  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  and the  Seller  shall have
received (i) a representation  letter from the transferee in the form of Exhibit
J  hereto,  in the case of a Class  A-PO,  Class  B-4,  Class  B-5 or Class  B-6
Certificate,  or in the form of  Exhibit K hereto,  in the case of a Class  B-1,
Class  B-2 or  Class  B-3  Certificate,  to the  effect  that  either  (a)  such
transferee  is not an  employee  benefit  plan or other  retirement  arrangement
subject to Title I of ERISA or Code Section  4975,  or a  governmental  plan, as
defined in Section  3(32) of ERISA,  subject to any federal,  state or local law
("Similar  Law")  which  is  to a  material  extent  similar  to  the  foregoing
provisions  of ERISA or the Code  (collectively,  a "Plan")  and is not a person
acting on behalf of or using the assets of any such Plan,  which  representation
letter shall not be an expense of the 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) the case of any such Class A-PO or Class 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.

            SECTION 6.08  MASTER SERVICER YEAR 2000 COMPLIANCE.

      The Master  Servicer  covenants  that it is working to modify its computer
and other  systems  used in the  performance  of its duties as  trustee  for the
Certificates to operate in a manner such that, on and after January 1, 2000, the
Master  Servicer  can  perform its duties in  accordance  with the terms of this
Agreement.


<PAGE>


                                   ARTICLE VII

                                     DEFAULT

            SECTION 7.01  EVENTS OF DEFAULT.

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

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

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

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

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

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

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

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

then, and in each and every such case,  subject to applicable law, so long as an
Event of Default shall not have been remedied, either the Trustee or the holders
of  Certificates  evidencing  in the  aggregate  not  less  than  66 2/3% of the
aggregate Voting Interest represented by all Certificates,  by notice in writing
to the Master  Servicer (and 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 or 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 any  representation  for the
correctness  of the same.  The  Trustee  makes no any  representation  as to the
validity or  sufficiency  of this  Agreement  or of the  Certificates  or of any
Mortgage Loan or related  document.  Subject to Section 2.04,  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 fail
to qualify as a REMIC,  which Opinion of Counsel shall be at the sole expense of
the Trustee.

            SECTION 8.11  AUTHENTICATING AGENT.

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

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

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

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

            SECTION 8.12  SEPARATE TRUSTEES AND CO-TRUSTEES.

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

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

               (i)  all powers, duties, bligations 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 tax return or other action required
by law to be performed directly by the Trustee, the Trustee shall (i) prepare or
cause to be prepared, timely cause to be signed by the Trustee and file or cause
to be filed  annual  federal and  applicable  state and local income tax returns
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-1,  Class  B-2,  Class  B-3,  Class  B-4,  Class B-5 and Class B-6
Certificates; (viii) exercise reasonable care not to allow the occurrence of any
"prohibited transactions" within the meaning of Code Section 860F(a), unless the
Master  Servicer  shall have  provided an Opinion of Counsel to the Trustee that
such  occurrence  would not (a) result in a taxable gain, (b) otherwise  subject
either  the Trust  Estate  or the REMIC to tax or (c) cause the Trust  Estate to
fail to qualify as a REMIC; (ix) exercise reasonable care not to allow the REMIC
to receive income from the  performance of services or from assets not permitted
under  the REMIC  Provisions  to be held by a REMIC;  (x) pay (on  behalf of the
REMIC) the amount of any federal  income  tax,  including,  without  limitation,
prohibited transaction taxes, taxes on net income from foreclosure property, and
taxes on certain  contributions to a REMIC after the Startup Day, imposed on the
REMIC,  when and as the same shall be due and payable (but such obligation shall
not prevent the Master Servicer or any other appropriate  Person from contesting
any such tax in  appropriate  proceedings  and  shall  not  prevent  the  Master
Servicer from  withholding  or  depositing  payment of such tax, if permitted by
law, pending the outcome of such proceedings); and (xi) if required or permitted
by the Code and applicable law, act as "tax matters person" for the REMIC within
the meaning of Treasury Regulations Section 1.860F-4(d), and the Master Servicer
is  hereby  designated  as agent of the  Class  A-R  Certificateholder  for such
purpose (or if the Master Servicer is not so permitted,  the Holder of the Class
A-R  Certificate  shall be the 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 or
the Trustee, as the case may be, for any losses, liabilities, damages, claims or
expenses  of the  Master  Servicer  or the  Trustee  arising  from any errors or
miscalculations  by the Master Servicer or the Trustee  pursuant to this Section
that  result  from any  failure  of the  Seller  to  provide,  or to cause to be
provided, accurate information or data to the Master Servicer or the Trustee, as
the case may be, on a timely basis.  The Master Servicer hereby  indemnifies the
Seller and the Trustee for any losses, liabilities,  damages, claims or expenses
of the  Seller  or the  Trustee  arising  from  the  Master  Servicer's  willful
misfeasance,  bad faith or gross  negligence  in  preparing  any of the federal,
state and local tax returns of the REMIC as described  above.  In the event that
the  Trustee  prepares  any of the  federal,  state and local tax returns of the
REMIC as described  above,  the Trustee  hereby  indemnifies  the Seller and the
Master Servicer for any losses, liabilities,  damages, claims or expenses of the
Seller 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,  respectively,  perform its  obligations  under this
Section 8.14.

            SECTION 8.15  MONTHLY ADVANCES.

      In the  event  that  Norwest  Mortgage  fails to make a  Periodic  Advance
required to be made pursuant to the Norwest Servicing Agreement on or before the
Distribution  Date,  the  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.

            SECTION 8.16  TRUSTEE YEAR 2000 COMPLIANCE.

      The Trustee  covenants that it is working to modify its computer and other
systems used in the performance of its duties as trustee for the Certificates to
operate in a manner  such that,  on and after  January 1, 2000,  the Trustee can
perform its duties in accordance with the terms of this Agreement.


<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 any  Servicer  unless  notified
thereof in writing by the Trustee, such Servicer or a Certificateholder.

            SECTION 10.06 SEVERABILITY OF PROVISIONS.

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

            SECTION 10.07 SPECIAL NOTICES TO RATING AGENCIES.

            (a) The Trustee  shall give prompt  notice to each Rating  Agency of
the occurrence of any of the following events of which it has notice:

               (i)  any  amendment    to   this    Agreement    pursuant    to
      Section 10.01(a);

               (ii)  any  sale or  transfer  of the  Class  B  Certificates
      pursuant to Section 5.02 to an affiliate of the Seller;

               (iii) any  assignment  by the Master  Servicer  of its rights and
      delegation of its duties pursuant to Section 6.06;

               (iv)  any  resignation  of the Master  Servicer  pursuant to
      Section 6.04;

               (v)  the occurrence of any of the Events of Default described in
      Section 7.01;

               (vi)     any  notice  of   termination   given  to  the  Master
      Servicer pursuant to Section 7.01;

               (vii) the  appointment  of any  successor to the Master  Servicer
      pursuant to Section 7.05; or

               (viii) the making of a final payment pursuant to Section 9.01.

            (b) The Master  Servicer  shall give  prompt  notice to each  Rating
Agency of the occurrence of any of the following events:

               (i)the appointment of a Custodian pursuant to Section 2.02;

               (ii)     the resignation or removal of the Trustee  pursuant to
      Section 8.08;

               (iii) the appointment of a successor  trustee pursuant to Section
      8.09; or

               (iv)  the  sale,  transfer  or  other  disposition  in  a  single
      transaction of 50% or more of the equity interests in the Master Servicer.

            (c) The Master Servicer shall deliver to each Rating Agency:

               (i)reports prepared pursuant to Section 3.05; and

               (ii)     statements prepared pursuant to Section 4.04.

            SECTION 10.08 COVENANT OF SELLER.

      The  Seller  shall  not  amend  Article  Third  of  its   Certificate   of
Incorporation without the prior written consent of each Rating Agency rating the
Certificates.

            SECTION 10.09 RECHARACTERIZATION.

      The Parties  intend the  conveyance by the Seller to the Trustee of all of
its right,  title and  interest in and to the  Mortgage  Loans  pursuant to this
Agreement to constitute a purchase and sale and not a loan.  Notwithstanding the
foregoing,  to the extent that such  conveyance is held not to constitute a sale
under  applicable  law, it is intended that this  Agreement  shall  constitute a
security  agreement under  applicable law and that the Seller shall be deemed to
have  granted to the Trustee a first  priority  security  interest in all of the
Seller's right, title and interest in and to the Mortgage Loans.


<PAGE>


                                   ARTICLE XI

                             TERMS FOR CERTIFICATES

            SECTION 11.01 CLASS A FIXED PASS-THROUGH RATE.

      The Class A Fixed Pass-Through Rate is 6.000% per annum.

            SECTION 11.02 CUT-OFF DATE.

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

            SECTION 11.03 CUT-OFF DATE AGGREGATE PRINCIPAL BALANCE.

      The Cut-Off Date Aggregate Principal Balance is $250,005,586.86.

            SECTION 11.04 ORIGINAL CLASS A PERCENTAGE.

      The Original Class A Percentage is 96.99455918%

            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           $25,299,000.00
                    Class A-2           $99,531,000.00
                    Class A-3           $76,000,000.00
                    Class A-4           $16,233,000.00
                    Class A-5           $25,000,000.00
                    Class A-PO          $442,000.98
                    Class A-R           $100.00

            SECTION 11.06 ORIGINAL CLASS A NON-PO PRINCIPAL BALANCE.

      The Original Class A Non-PO Principal Balance is $242,063,100.00.

            SECTION 11.07 ORIGINAL SUBORDINATED PERCENTAGE.

      The Original Subordinated Percentage is 3.00544082%.

            SECTION 11.08 ORIGINAL CLASS B-1 PERCENTAGE.

      The Original Class B-1 Percentage is 1.10192358%.

            SECTION 11.09 ORIGINAL CLASS B-2 PERCENTAGE.

      The Original Class B-2 Percentage is 1.15201102%.

            SECTION 11.10 ORIGINAL CLASS B-3 PERCENTAGE.

      The Original Class B-3 Percentage is 0.30052461%.

            SECTION 11.11 ORIGINAL CLASS B-4 PERCENTAGE.

      The Original Class B-4 Percentage is 0.20034974%.

            SECTION 11.12 ORIGINAL CLASS B-5 PERCENTAGE.

      The Original Class B-5 Percentage is 0.10017487%.

            SECTION 11.13 ORIGINAL CLASS B-6 PERCENTAGE.

      The Original Class B-6 Percentage is 0.15045700%.

            SECTION 11.14 ORIGINAL CLASS B PRINCIPAL BALANCE.

      The Original Class B Principal Balance is $7,500,485.88.

            SECTION 11.15 ORIGINAL PRINCIPAL BALANCES OF THE CLASSES OF
                          CLASS B CERTIFICATES.

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

                                    Original
              Class            Principal Balance
              -----            -----------------
            Class B-1            $2,750,000.00
            Class B-2            $2,875,000.00
            Class B-3            $750,000.00
            Class B-4            $500,000.00
            Class B-5            $250,000.00


            SECTION 11.16 ORIGINAL CLASS B-1 FRACTIONAL INTEREST.

      The Original Class B-1 Fractional Interest is 1.90351723%.

            SECTION 11.17 ORIGINAL CLASS B-2 FRACTIONAL INTEREST.

      The Original Class B-2 Fractional Interest is 0.75150622%.

            SECTION 11.18 ORIGINAL CLASS B-3 FRACTIONAL INTEREST.

      The Original Class B-3 Fractional Interest is 0.45098161%.

            SECTION 11.19 ORIGINAL CLASS B-4 FRACTIONAL INTEREST.

      The Original Class B-4 Fractional Interest is 0.25063186%.

            SECTION 11.20 ORIGINAL CLASS B-5 FRACTIONAL INTEREST.

      The Original  B-5 Fractional Interest is 0.15045699%.

            SECTION 11.21 CLOSING DATE.

      The Closing Date is January 28, 1999.

            SECTION 11.22 RIGHT TO PURCHASE.

      The right of the Seller to purchase all of the Mortgage  Loans pursuant to
Section  9.01 hereof  shall be  conditioned  upon the Pool  Scheduled  Principal
Balance of the Mortgage Loans being less than $25,000,558.69 (10% of the Cut-Off
Date Aggregate Principal Balance) at the time of any such purchase.

            SECTION 11.23 WIRE TRANSFER ELIGIBILITY.

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

            SECTION 11.24 SINGLE CERTIFICATE.

      A Single  Certificate  for each Class of Class A Certificates  (other than
the  Class  A-PO and  Class  A-R  Certificates)  and each  Class of the  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.  A Single Certificate for
the Class A-PO, Class B-5 and Class B-6  Certificates  represents a $442,000.98,
$250,000.00 and 375,485.88 Denomination, respectively.

            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:    Alan S. McKenney
                                       Title:   Vice President




                                    NORWEST BANK MINNESOTA, NATIONAL
                                    ASSOCIATION
                                       as Master Servicer



                                       By:
                                          -----------------------------
                                          Name:   Brett Handelman
                                          Title:  Officer




                                    FIRST UNION NATIONAL BANK
                                       as Trustee


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


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


<PAGE>



STATE OF MARYLAND       )
                           ss.:
COUNTY OF FREDERICK     )

      On this 28th day of January,  1999,  before me, a notary public in and for
the State of Maryland,  personally  appeared Alan S. McKenney,  known to me who,
being by me duly sworn, did depose and say that he resides at McLean,  Virginia;
that he is a Vice President of Norwest Asset Securities Corporation,  a Delaware
corporation, one of the parties that executed the foregoing instrument; and that
he  signed  his  name  thereto  by  order  of the  Board  of  Directors  of said
corporation.



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

[NOTARIAL SEAL]


<PAGE>



STATE OF MARYLAND       )
                        ss.:
COUNTY OF FREDERICK     )

      On this 28th day of January,  1999,  before me, a notary public in and for
the State of Maryland,  personally  appeared Brett  Handelman,  known to me who,
being by me duly  sworn,  did  depose  and say  that he  resides  at  Frederick,
Maryland; that he is an Officer of Norwest Bank Minnesota, National Association,
a national banking  association,  one of the parties that executed the foregoing
instrument;  and that he  signed  his  name  thereto  by  order of the  Board of
Directors of said corporation.



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

[NOTARIAL SEAL]


<PAGE>



STATE OF NORTH CAROLINA      )
                                ss.:
COUNTY OF                    )

      On this 28th day of January,  1999,  before me, a notary public in and for
the State of North Carolina, personally appeared _____________________, known to
me  who,  being  by me duly  sworn,  did  depose  and say  that  he  resides  at
__________________,  North Carolina; that he is a _____________________ of First
Union National  Bank, a national  banking  association,  one of the parties that
executed  the  foregoing  instrument;  and that s/he signed his name  thereto by
order of the Board of Directors of said corporation.



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

[NOTARIAL SEAL]


<PAGE>



                                   SCHEDULE I

  Norwest Asset Securities Corporation, Mortgage Pass-Through Certificates,
                                  Series 1999-3
               Applicable Unscheduled Principal Receipt Period

                                      Full Unscheduled     Partial Unscheduled
             Servicer                Principal Receipts     Principal Receipts
Norwest Mortgage, Inc. Exhibit F-1      Prior Month            Prior Month
The Huntington Mortgage Company          Mid Month             Prior Month
Citicorp Mortgage, Inc.                  Mid Month             Prior Month
GMAC Mortgage Corporation                Mid Month             Prior Month
Bank of America NT & SA                  Mid Month             Prior Month
Star Bank                                Mid Month             Prior Month

<PAGE>
                                   EXHIBIT A-1
                     [FORM OF FACE OF CLASS A-1 CERTIFICATE]

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1999-3 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: January 1, 1999

CUSIP No.:                          First Distribution Date: February 25, 1999

Percentage Interest evidenced       Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:      February 25, 2029

            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-1  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and Servicing  Agreement dated as of January 28, 1999 (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 6.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-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.


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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1999-3 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: January 1, 1999

CUSIP No.:                          First Distribution Date: February 25, 1999

Percentage Interest evidenced       Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:      February 25, 2029

            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-2  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and Servicing  Agreement dated as of January 28, 1999 (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 6.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-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.

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1999-3 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: January 1, 1999

CUSIP No.:                          First Distribution Date: February 25, 1999

Percentage Interest evidenced       Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:      February 25, 2029

            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-3  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and Servicing  Agreement dated as of January 28, 1999 (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 6.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-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.

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1999-3 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: January 1, 1999

CUSIP No.:                          First Distribution Date: February 25, 1999

Percentage Interest evidenced       Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:      February 25, 2029

<PAGE>



            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-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 January 28, 1999 (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 6.000% 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  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.


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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1999-3 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: January 1, 1999

CUSIP No.:                          First Distribution Date: February 25, 1999

Percentage Interest evidenced       Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:      February 25, 2029

            THIS  CERTIFIES THAT  ___________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-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 January 28, 1999 (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 6.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-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.

            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 1999-3, 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: January 1, 1999

CUSIP No.:                          First Distribution Date: February 25, 1999

Percentage Interest evidenced       Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:      February 25, 2029

<PAGE>



            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class A-PO  Certificates  with respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and Servicing  Agreement dated as of January 28, 1999 (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  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.

            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.

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1999-3, 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: January 1, 1999

CUSIP No.:                          First Distribution Date: February 25, 1999

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

Final Scheduled Maturity Date:      February 25, 2029


<PAGE>


            THIS  CERTIFIES  THAT  __________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions to the Holder of the Class A-R Certificate with respect to a Trust
Estate consisting of a pool of fixed interest rate,  conventional,  monthly pay,
fully amortizing,  first lien, one- to four-family  residential  mortgage loans,
other than the Fixed Retained Yield, if any, with respect thereto, and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 28, 1999 (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 6.000% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-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 1999-3, 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: January 1, 1999

CUSIP No.:                          First Distribution Date: February 25, 1999

Percentage Interest evidenced       Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:      February 25, 2029

<PAGE>



            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-1  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and Servicing  Agreement dated as of January 28, 1999 (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 6.000% per annum. The
amount of  interest  which  accrues  on this  Certificate  in any month  will be
subject to reduction with respect to any  Non-Supported  Interest  Shortfall and
the  interest  portion of certain  Realized  Losses  allocated  to the Class 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.

            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 1999-3, 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: January 1, 1999

CUSIP No.:                          First Distribution Date: February 25, 1999

Percentage Interest evidenced       Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:      February 25, 2029


<PAGE>


            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-2  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and Servicing  Agreement dated as of January 28, 1999 (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
6.000% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class 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.

            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 1999-3, 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: January 1, 1999

CUSIP No.:                          First Distribution Date: February 25, 1999

Percentage Interest evidenced       Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:      February 25, 2029


<PAGE>


            THIS   CERTIFIES   THAT   _______________________________   is   the
registered  owner of the Percentage  Interest  evidenced by this  Certificate in
monthly  distributions to the Holders of the Class B-3 Certificates with respect
to a Trust Estate  consisting of a pool of fixed  interest  rate,  conventional,
monthly pay,  fully  amortizing,  first lien,  one- to  four-family  residential
mortgage  loans,  other than the Fixed  Retained  Yield,  if any,  with  respect
thereto,  and which may include loans  secured by shares  issued by  cooperative
housing  corporations  (the "Mortgage Loans") formed by Norwest Asset Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and Servicing  Agreement dated as of January 28, 1999 (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
6.000% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class 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  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.

            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 1999-3, 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: January 1, 1999

CUSIP No.:                          First Distribution Date: February 25, 1999

Percentage Interest evidenced       Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:      February 25, 2029

<PAGE>



            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-4  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and Servicing  Agreement dated as of January 28, 1999 (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
6.000% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class 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  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.

            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 1999-3, 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: January 1, 1999

CUSIP No.:                          First Distribution Date: February 25, 1999

Percentage Interest evidenced       Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:      February 25, 2029

<PAGE>


            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-5  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and Servicing  Agreement dated as of January 28, 1999 (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
6.000% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class 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  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.

            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 1999-3, 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: January 1, 1999

CUSIP No.: 66937N 6E 3              First Distribution Date: February 25, 1999

Percentage Interest evidenced       Denomination: $
by this Certificate: %

Final Scheduled Maturity Date:      February 25, 2029


<PAGE>

            THIS CERTIFIES THAT  ____________________________  is the registered
owner of the  Percentage  Interest  evidenced  by this  Certificate  in  monthly
distributions  to the Holders of the Class B-6  Certificates  with  respect to a
Trust Estate consisting of a pool of fixed interest rate, conventional,  monthly
pay, fully  amortizing,  first lien,  one- to four-family  residential  mortgage
loans,  other than the Fixed Retained Yield, if any, with respect  thereto,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  formed  by  Norwest  Asset  Securities
Corporation  (hereinafter called the "Seller", which term includes any successor
entity  under the  Agreement  referred to below).  The Trust  Estate was created
pursuant to a Pooling and Servicing  Agreement dated as of January 28, 1999 (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
6.000% per annum.  The amount of interest  which accrues on this  Certificate in
any month  will be  subject  to  reduction  with  respect  to any  Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class 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  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.

            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 1999-3 Certificates]

                      NORWEST ASSET SECURITIES CORPORATION
                       MORTGAGE PASS-THROUGH CERTIFICATES
                                  SERIES 1999-3

            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 January 28, 1999
relating to the issuance of Mortgage  Pass-Through  Certificates,  Series 1999-3
(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  2.01  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 2.02  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 2.03 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  2.04  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 2.05  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 2.06 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  3.01  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 3.02 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 3.03  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 3.04 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 3.05 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 3.06 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 3.07 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 4.01 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  4.02  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  4.03  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 4.04  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 4.05  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.

            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                   By:   _________________________________
Frederick, Maryland 21703              Name: _________________________________
                                       Title:_________________________________

Address:                               NORWEST BANK MINNESOTA, NATIONAL
                                       ASSOCIATION

7485 New Horizon Way                   By:
Frederick, Maryland 21703              Name: _________________________________
                                       Title:_________________________________

Address:                               [CUSTODIAN]

                                       By:   _________________________________
                                       Name: _________________________________
                                       Title:_________________________________

<PAGE>



STATE OF                )
                        )  ss.:
COUNTY OF               )


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



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

[NOTARIAL SEAL]

<PAGE>



STATE OF                )
                        )  ss.:
COUNTY OF               )


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



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

[NOTARIAL SEAL]

<PAGE>


STATE OF                )
                        )  ss.:
COUNTY OF               )


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



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

[NOTARIAL SEAL]

<PAGE>



STATE OF                )
                        )  ss.:
COUNTY OF               )


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



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


[NOTARIAL SEAL]


<PAGE>


                                   EXHIBIT F-1

             Schedule of Mortgage Loans Serviced by Norwest Mortgage

<TABLE>
NASCOR
NMI / 1999-03  Exhibit F-1
30 YEAR FIXED RATE RELOCATION LOANS


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



</TABLE>



TABLE (CONTINUED)

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




</TABLE>

THERE ARE NO DES MOINES LOANS





COUNT:               15
WAC:        7.191954825
WAM:        357.6976086
WALTV:      69.99349637


<PAGE>


                                   EXHIBIT F-2

             Schedule of Mortgage Loans Serviced by Other Servicers


<TABLE>
NASCOR
NMI / 1999-03  Exhibit F-2
30 YEAR FIXED RATE RELOCATION  LOANS
<CAPTION>
(i)         (ii)                                             (iii)     (iv)        (v)        (vi)        (vii)       (viii)
- -------     ---------------------     -------    -------   --------   --------   --------    --------    --------   ----------
                                                                                 NET
MORTGAGE                                                              MORTGAGE   MORTGAGE    CURRENT     ORIGINAL   SCHEDULED
LOAN                                              ZIP      PROPERTY   INTEREST   INTEREST    MONTHLY     TERM TO    MATURITY
NUMBER      CITY                       STATE      CODE     TYPE       RATE       RATE        PAYMENT     MATURITY   DATE
- -------     ---------------------     -------    -------   --------   --------   --------    --------    --------   -----------
<S>         <C>                        <C>        <C>        <C>      <C>        <C>        <C>             <C>       <C>

4682079     PHOENIX                      AZ       85028     SFD         688%      6.000       1939.26        360       47088
4696619     BYRAM TOWNSHIP               NJ       07871     SFD         675%      6.000       1582.58        360       46997
4700460     BASKING RIDGE                NJ       07920     SFD         713%      6.000       2694.88        360       47119
4704406     DOYLESTOWN                   PA       18901     SFD         725%      6.000       1263.74        360       46905
4708140     MORAGA                       CA       94556     SFD         613%      5.858       3508.96        360       47088
4721077     NEWTOWN                      CT       06470     SFD         638%      6.000        2208.5        360       47088
4723150     DESTREHAN                    LA       70047     SFD         688%      6.000        1623.6        360       47088
4729629     WHITEHOUSE STATION           NJ       08889     SFD         675%      6.000       2583.05        360       47088
4734036     PRINCETON                    NJ       08540     SFD         638%      6.000       2959.33        360       47119
4736869     GRAND RAPIDS                 MI       49546     SFD         650%      6.000       2188.54        360       47058
4737990     CLAYTON                      CA       94517     SFD         638%      6.000       2366.97        360       47088
4738974     SAN RAMON                    CA       94583     SFD         775%      6.000       2557.95        360       47088
4746617     RANDOLPH                     NJ       07869     SFD         663%      6.000        2670.1        360       47088
4748024     BOSTON                       MA       02101     HCO         650%      6.000       1703.43        360       47088
4751861     PALOS VERDES                 CA       90274     SFD         650%      6.000       2679.97        360       46905
4752261     EASTON                       MA       02356     SFD         675%      6.000       1934.12        360       47088
4753325     WESTMINSTER                  CO       80030     SFD         675%      6.000       1710.68        360       47088
4759138     NORTHBROOK                   IL       60062     PUD         663%      6.000       2197.55        360       47119
4759559     WESTWOOD                     MA       02090     SFD         650%      6.000       2022.62        360       47119
4759604     KATY                         TX       77450     SFD         650%      6.000        1519.5        360       47088
4760588     CAVE CREEK                   AZ       85331     SFD         613%      5.858       1622.93        360       47088
4763234     TOWN AND COUNTRY             MO       63017     SFD         675%      6.000       3048.42        360       47119
4763516     FINKSBURG                    MD       21048     SFD         638%      6.000       1509.77        360       47119
4763919     EDGEWATER PARK               PA       19067     SFD         675%      6.000        1992.5        360       47088
4765411     MORGANVILLE                  NJ       07751     SFD         663%      6.000       1844.74        360       47088
4765538     SARASOTA                     FL       34241     SFD         688%      6.000       1833.49        360       46905
4765862     RENTON                       WA       98058     SFD         688%      6.000       1470.87        360       46905
4770663     GLEN ROCK                    NJ       07452     SFD         688%      6.000       2276.26        360       47088
4771851     DENVILLE                     NJ       07834     SFD         675%      6.000       2468.25        360       47088
4772567     NOVATO                       CA       94947     SFD         650%      6.000       4836.59        360       47088
4780536     BERNARDS TOWNSHIP            NJ       07920     LCO         638%      6.000       2590.31        360       47088
4780600     WOODBURY                     MN       55125     SFD         625%      5.983       1830.53        360       47088
4781066     PHOENIXVILLE                 PA       19460     SFD         663%      6.000       2029.79        360       47088
4782454     COOKSVILLE                   MD       21723     SFD         650%      6.000       1829.84        360       47088
4783415     SAN DIEGO                    CA       92129     SFD         638%      6.000       1628.31        360       47088
4788912     OAKLAND                      CA       94611     SFD         688%      6.000       2430.64        360       47119
4789048     NEWTOWN                      CT       06470     SFD         750%      6.000       2594.09        360       47088
4790779     ALEXANDRIA                   VA       22310     SFD         638%      6.000       1575.28        360       47088
4793983     ARNOLD                       MD       21012     SFD         613%      5.858       1519.03        360       47088
4795036     SIMI VALLEY                  CA       93065     SFD         650%      6.000       1997.34        360       47088
4797610     HOUSTON                      TX       77005     SFD         650%      6.000       2075.08        360       47088
4799202     PARK CITY                    UT       84098     SFD         650%      6.000       2528.28        360       47088
4800741     MONROE                       CT       06468     SFD         650%      6.000       2149.04        360       47119
4801299     RIDGEFIELD                   CT       06877     SFD         700%      6.000       3455.25        360       47119
4801927     GREEN OAKS                   IL       60048     SFD         638%      6.000       1680.71        360       47088
4802176     TEWKSBURY                    NJ       07979     LCO         750%      6.000       2284.34        360       47119
4802654     STONY BROOK                  NY       11790     SFD         675%      6.000       1589.07        360       47088
4805631     ORANGE                       CA       92869     SFD         700%      6.000       1828.26        360       47088
4806103     LEBANON                      NJ       08833     SFD         625%      5.983        1539.3        360       47088
4806130     SCOTTSDALE                   AZ       85255     SFD         650%      6.000       1655.08        360       47119
4806662     PARKLAND                     FL       33076     SFD         625%      5.983       1847.16        360       47088
4807274     WELLINGTON                   FL       33414     SFD         675%      6.000       2153.35        360       46966
4807374     STAMFORD                     CT       06901     SFD         650%      6.000       4740.52        360       47088
4810819     WALNUT CREEK                 CA       94598     SFD         663%      6.000       1972.16        360       47119
4812116     PALOS VERDES ESTATES         CA       90274     SFD         663%      6.000       4482.18        360       46997
4812385     BARRINGTON                   IL       60010     SFD         700%      6.000        2910.7        360       47088
4813713     MONROE                       CT       06468     SFD         600%      5.733       1618.79        360       47088
4814609     AUSTIN                       TX       78750     SFD         638%      6.000       1990.15        360       47088
4815712     LAFAYETTE                    NJ       07848     SFD         600%      5.733        2006.4        360       47088
4816649     NORFOLK                      VA       23507     SFD         725%      6.000       2056.77        360       47088
4817729     FAIRFIELD                    CT       06430     SFD         675%      6.000       3502.43        360       47058
4817983     SMYRNA                       GA       30080     SFD         638%      6.000       1854.46        360       47088
4819841     MENLO PARK                   CA       94025     SFD         700%      6.000       3486.19        360       47119
4820625     HARVARD                      MA       01451     SFD         663%      6.000       2165.86        360       47088
4821947     DARIEN                       CT       06820     SFD         613%      5.858        2378.8        360       47088
4822524     TULSA                        OK       74137     SFD         650%      6.000        1769.8        360       47088
4822627     SCOTTSDALE                   AZ       85255     SFD         688%      6.000       2117.94        360       47119
4823708     SOMERS                       NY       10536     SFD         738%      6.000       3453.38        360       47088
4823817     BROOKFIELD                   CT       06804     SFD         688%      6.000       1839.41        360       47088
4824412     CHICAGO                      IL       60614     SFD         688%      6.000       1757.29        360       47088
4826052     LARCHMONT                    NY       10538     SFD         688%      6.000        2123.2        360       47088
4827321     COLLEYVILLE                  TX       76034     SFD         663%      6.000       2561.25        360       47088
4827612     UPPER HOLLAND                PA       18966     SFD         638%      6.000       2045.05        360       47088
4828179     DOWNERS GROVE                IL       60515     SFD         638%      6.000       2495.48        360       47119
4828864     SIMI VALLEY                  CA       93065     SFD         650%      6.000       2654.69        360       47088
4829124     HUNTINGTON                   NY       11743     SFD         663%      6.000       2241.09        360       47119
4829792     OVILLA                       TX       75154     SFD         650%      6.000       1666.14        360       47058
4830424     ARROYO GRANDE                CA       93420     SFD         663%      6.000       1617.11        360       47088
4830533     WAYNESVILLE                  NC       28786     SFD         700%      6.000       1599.06        360       47088
4830868     SHORT HILLS                  NJ       07078     SFD         625%      5.983       2924.66        360       47058
4830876     HUNTERSVILLE                 NC       28078     SFD         700%      6.000       1793.33        360       47088
4831320     MIDDLETOWN                   NJ       07748     SFD         688%      6.000       3547.42        360       47088
4831798     SPARTA                       NJ       07871     SFD         650%      6.000       2275.45        360       47088
4831925     MARLBOROUGH                  MA       01752     SFD         638%      6.000       1562.18        360       47088
4832837     HOUSTON                      TX       77004     HCO         688%      6.000       2165.24        360       47088
4833404     WESTMINSTER                  CO       80234     SFD         650%      6.000       1638.64        360       47058
4833993     WYCKOFF                      NJ       07481     SFD         638%      6.000       3044.49        360       47088
4834824     LAS VEGAS                    NV       89117     SFD         688%      6.000       2248.67        360       47088
4835247     GERMANTOWN                   TN       38138     SFD         675%      6.000       2075.52        360       47088
4836641     FAIRFAX                      VA       22033     SFD         638%      6.000       2492.37        360       47088
4836687     TRUMBULL                     CT       06611     SFD         725%      6.000       2012.43        360       47088
4836724     ANNANDALE                    NJ       08801     SFD         663%      6.000       2177.06        360       47088
4837081     GREENWICH                    NJ       08886     SFD         688%      6.000       1891.96        360       47088
4837210     BOSTON                       MA       02118     LCO         650%      6.000       1580.18        360       47088
4838519     NEW ROCHELLE                 NY       10804     SFD         650%      6.000       1791.92        360       47088
4839717     ATLANTA                      GA       30305     SFD         638%      6.000       1653.26        360       47119
4839722     NEWTOWN                      CT       06470     SFD         650%      6.000        2217.3        360       47088
4839758     RALEIGH                      NC       27613     SFD         675%      6.000       2017.15        360       47088
4840197     WEST WINDSOR                 NJ       08512     SFD         663%      6.000       2241.09        360       47088
4840725     ALPHARETTA                   GA       30022     SFD         650%      6.000       1706.59        360       47058
4841005     AUBURN                       OH       44021     SFD         663%      6.000       1664.81        360       47088
4841322     SAN JOSE                     CA       95125     SFD         638%      6.000       3431.29        360       47119
4842212     WESTFIELD                    NJ       07090     SFD         675%      6.000        2247.4        360       47058
4842556     ATLANTA                      GA       30342     SFD         650%      6.000       2433.47        360       47088
4842674     FORT COLLINS                 CO       80525     SFD         650%      6.000       2423.11        240       43344
4842941     EAGLE                        ID       83616     SFD         675%      6.000       1660.42        360       47088
4842972     KELLER                       TX       76248     SFD         738%      6.000       1716.33        360       47088
4843730     BLOOMINGTON                  IL       61704     SFD         638%      6.000        2791.2        360       47088
4843777     SAINT PAUL                   MN       55105     SFD         688%      6.000       2759.11        360       47119
4844093     PLEASANTON                   CA       94566     SFD         663%      6.000       3252.78        360       47088
4844128     CHICAGO                      IL       60611     HCO         650%      6.000       2370.26        360       47058
4844623     RYE                          NY       10580     SFD         675%      6.000       2475.06        360       47119
4845579     FLOWER MOUND                 TX       75028     SFD         675%      6.000       1872.83        360       47088
4846968     CLARENDON HILLS              IL       60514     SFD         588%      5.608          3076        360       47088
4847175     NORWALK                      CT       06854     SFD         675%      6.000       1897.15        360       47119
4847766     NAPERVILLE                   IL       60564     SFD         675%      6.000       1746.34        360       47088
4847777     EVESHAM                      NJ       08053     SFD         638%      6.000       1895.32        360       47088
4847792     VERNON HILLS                 IL       60061     SFD         638%      6.000       2370.71        360       47088
4848121     PLEASANT HILL                CA       94523     SFD         650%      6.000       2528.28        360       47058
4848139     SAN JOSE                     CA       95125     SFD         675%      6.000       3230.02        360       47088
4848219     BURLINGAME                   CA       94010     SFD         713%      6.000       3745.88        360       47088
4848348     CONCORD                      CA       94518     SFD         700%      6.000        1856.2        360       47088
4848359     BASKING RIDGE                NJ       07920     SFD         700%      6.000       1944.68        360       47088
4848804     FAIRFIELD                    CT       06430     SFD         638%      6.000       1902.81        360       47088
4849001     KENNETT SQUARE               PA       19348     SFD         700%      6.000       2102.36        360       47088
4849516     CAVE CREEK                   AZ       85331     SFD         663%      6.000        2881.4        360       47088
4849520     MORAGA                       CA       94556     SFD         713%      6.000       3551.85        360       47088
4850173     VESTAVIA HILLS               AL       35242     SFD         613%      5.858       1980.51        360       47088
4850379     BREA                         CA       92821     SFD         663%      6.000       1838.98        360       47088
4850778     LAGUNA NIGUEL                CA       92677     SFD         638%      6.000       1996.39        360       47088
4851204     SAN JOSE                     CA       95136     SFD         688%      6.000       2364.95        360       47088
4851264     PLEASANTON                   CA       94588     SFD         725%      6.000       1923.74        360       47088
4851528     BEAVERTON                    OR       97007     SFD         663%      6.000       1920.94        360       47088
4851629     OLYMPIA FIELDS               IL       60461     SFD         738%      6.000       2175.63        360       47088
4852239     SUGAR LAND                   TX       77479     SFD         650%      6.000       1611.78        360       47088
4852703     DENVER                       CO       80234     SFD         675%      6.000       1608.53        360       47088
4852718     WINNETKA                     IL       60093     SFD         688%      6.000       1839.41        360       47088
4852883     SAN RAMON                    CA       94583     PUD         675%      6.000        1621.5        360       47088
4853298     WEST LINN                    OR       97068     SFD         663%      6.000       2337.14        360       47088
4853394     ROSWELL                      GA       30076     SFD         713%      6.000       1643.88        360       47088
4853427     PARSIPPANY                   NJ       07054     SFD         600%      5.733       2098.43        360       47088
4853870     HAWTHORN WOODS               IL       60047     SFD         638%      6.000       1671.98        360       47088
4853912     SPARTA                       NJ       07871     SFD         675%      6.000       2288.26        360       47088
4854257     LONDONDERRY                  NH       03053     SFD         663%      6.000       1691.07        360       47088
4854523     NARBERTH                     PA       19072     SFD         688%      6.000       1597.66        360       47088
4854619     NEWTOWN                      CT       06470     SFD         688%      6.000       2385.97        360       47088
4854621     BROOKLINE                    MA       02146     SFD         650%      6.000       3640.72        360       47027
4854939     NEWTON                       CT       06482     SFD         675%      6.000        2200.7        360       47088
4855340     MAPLEWOOD                    NJ       07040     SFD         663%      6.000       1764.06        360       47119
4855392     ANACORTES                    WA       98221     SFD         700%      6.000       1663.26        360       47119
4855530     DANA POINT                   CA       92624     LCO         650%      6.000       1896.21        360       47088
4855831     STAMFORD                     CT       06902     SFD         613%      5.858       2795.01        360       47088
4855966     OLNEY                        MD       20832     SFD         700%      6.000       1879.48        360       47088
4856089     CARMEL                       NY       10512     SFD         650%      6.000          2168        360       47088
4856345     SIMI VALLEY                  CA       93065     SFD         675%      6.000       1589.07        360       47088
4856409     ALAMO                        CA       94507     SFD         663%      6.000       2420.38        360       47119
4856413     VIENNA                       VA       22181     SFD         638%      6.000       1851.65        360       47058
4856819     MARSHALL                     MI       49068     SFD         650%      6.000       1624.42        360       47119
4856934     CLAYTON                      CA       94517     SFD         663%      6.000       2298.72        360       47088
4857051     FRANKTOWN                    CO       80116     SFD         625%      5.983       2216.59        360       47088
4857098     BEDMINSTER                   NJ       07921     SFD         638%      6.000       3493.68        360       47088
4857223     HARDING                      NJ       07960     SFD         675%      6.000        2270.1        360       47058
4857258     SARATOGA                     CA       95070     SFD         675%      6.000       4864.49        360       47088
4857350     BLOOMINGTON                  IL       61704     SFD         625%      5.983       2512.13        360       47088
4858065     DUNWOODY                     GA       30350     SFD         650%      6.000       2806.39        360       47058
4858439     SAINT PAUL                   MN       55105     SFD         700%      6.000       3566.03        360       47088
4858634     SAN JOSE                     CA       95020     SFD         638%      6.000       2675.16        360       47088
4858667     RAMSEY                       NJ       07446     SFD         663%      6.000       2420.38        360       47088
4858933     DULUTH                       GA       30097     SFD         713%      6.000       2918.89        360       47088
4859064     PLEASANTON                   CA       94588     SFD         638%      6.000       3063.21        360       47058
4859394     NESHANIC STATION             NJ       08853     SFD         613%      5.858       1822.84        360       47088
4859460     CANTON                       MI       48187     SFD         713%      6.000       1946.38        360       47119
4859545     MORRISTOWN                   NJ       07960     SFD         638%      6.000       1696.31        360       47088
4859570     NEW ORLEANS                  LA       70127     SFD         713%      6.000        2025.2        360       47088
4860063     CAMDEN                       ME       04843     SFD         700%      6.000       3113.62        360       47119
4860124     BOXBOROUGH                   MA       01719     SFD         713%      6.000       1790.08        360       47058
4860850     DULUTH                       GA       30097     SFD         638%      6.000       2932.19        360       47088
4860960     TEMPE                        AZ       85284     SFD         625%      5.983       2155.02        360       47088
4860990     SPRINGBORO                   OH       45066     SFD         625%      5.983       1724.01        360       47088
4861641     ANNAPOLIS                    MD       21403     SFD         663%      6.000       1584.77        360       47088
4861772     ALPHARETTA                   GA       30004     SFD         688%      6.000       1960.94        360       47088
4862019     LIVERMORE                    CA       94550     SFD         663%      6.000       2705.32        360       47088
4862192     FORT LAUDERDALE              FL       33301     SFD         688%      6.000       4270.04        360       46935
4862796     HAMPTON                      NJ       08827     SFD         663%      6.000       2002.58        360       47088
4862821     ORLANDO                      FL       32835     SFD         713%      6.000       1923.81        360       46966
4863297     SUPERIOR                     CO       80027     SFD         700%      6.000       1728.46        360       47058
4863492     ALISO VIEJO                  CA       92656     SFD         650%      6.000       2174.63        360       47058
4863497     HOWELL                       MI       48843     SFD         650%      6.000       2035.26        360       47088
4863851     SAN RAMON                    CA       94583     SFD         688%      6.000       1891.96        360       47088
4864059     ALPHARETTA                   GA       30005     SFD         675%      6.000        2594.4        360       47088
4864094     KIRKWOOD                     MO       63122     SFD         700%      6.000       1995.91        360       47058
4864140     SAN RAFAEL                   CA       94901     SFD         650%      6.000       4677.31        360       47058
4864152     NEW CANAAN                   CT       06840     SFD         638%      6.000       2146.12        360       47088
4864337     FULLERTON                    CA       92833     SFD         688%      6.000       2033.86        360       47058
4864486     ISSAQUAH                     WA       98029     SFD         663%      6.000       2474.17        360       47088
4865205     SUMMIT                       NJ       07901     SFD         638%      6.000       4055.16        360       47088
4865321     CASTLE ROCK                  CO       80104     SFD         650%      6.000       2679.97        360       47088
4865468     KNOXVILLE                    TN       37922     SFD         638%      6.000       1587.13        360       47088
4865580     WARWICK                      NY       10990     SFD         650%      6.000       1875.03        360       47088
4865593     COLLEYVILLE                  TX       76034     SFD         625%      5.983       1662.44        360       47088
4865612     NORTHVILLE                   MI       48167     SFD         688%      6.000       2299.26        360       47119
4865729     STOW                         MA       01775     SFD         663%      6.000       1760.86        360       47088
4865746     SANDY                        UT       84092     SFD         650%      6.000       1896.21        360       47058
4866160     SCOTTSDALE                   AZ       85255     SFD         650%      6.000       1959.42        360       47058
4866296     CHANHASSEN                   MN       55317     SFD         663%      6.000       1600.78        360       47088
4866393     HOUSTON                      TX       77005     SFD         588%      5.608       2457.84        360       47088
4866437     ALPHARETTA                   GA       30022     SFD         663%      6.000       2365.95        360       47058
4866565     SAINT HELENA                 CA       94574     SFD         663%      6.000       1819.13        360       47088
4866761     TEWKSBURY                    NJ       07979     LCO         650%      6.000       1962.58        360       47088
4866827     NORTH ANDOVER                MA       01845     SFD         625%      5.983       1849.62        360       47088
4866920     HOPEWELL JCT                 NY       12533     SFD         700%      6.000       2075.75        360       47088
4866943     HUNTINGTON BEACH             CA       92648     SFD         688%      6.000       2430.64        360       47027
4866955     SPRING LAKE                  NJ       07762     SFD         638%      6.000       3743.22        360       47088
4867380     SIMI VALLEY                  CA       93065     SFD         700%      6.000       1867.51        360       47088
4867485     WEST CHICAGO                 IL       60185     SFD         688%      6.000       1627.55        360       47088
4867598     COLLIERVILLE                 TN       38139     SFD         650%      6.000       1877.24        360       47027
4867720     MANLIUS                      NY       13104     SFD         650%      6.000        1769.8        360       47088
4868003     ATHENS                       GA       30606     SFD         613%      5.858       1495.94        360       47088
4868364     TRUMBULL                     CT       06611     SFD         650%      6.000        1848.8        360       47088
4868721     SHERMAN                      CT       06784     SFD         638%      6.000       1577.15        360       47088
4868917     CHESTER                      NJ       07930     SFD         625%      5.983       1724.01        360       47088
4869046     AUSTIN                       TX       78734     SFD         675%      6.000       1675.98        360       47027
4869138     FREEHOLD                     NJ       07728     SFD         688%      6.000       1716.23        360       47119
4869234     SPARTA                       NJ       07871     SFD         713%      6.000       2627.51        360       47088
4869568     SAN FRANCISCO                CA       94116     SFD         650%      6.000       1763.47        360       47088
4869801     WESTLAKE                     OH       44145     SFD         625%      5.983       1586.09        360       47058
4870215     SOLVANG                      CA       93463     SFD         650%      6.000       1567.53        360       47088
4870253     HONOLULU                     HI       96821     SFD         613%      5.858       3423.89        360       47088
4870298     MAMARONECK                   NY       10543     SFD         688%      6.000       4187.93        360       47119
4870337     MORRISTOWN                   NJ       07960     SFD         650%      6.000       1875.03        360       47088
4870462     WEST HARTFORD                CT       06107     SFD         663%      6.000       2016.98        360       47088
4870685     WAUKESHA                     WI       53186     SFD         688%      6.000       1608.82        360       47088
4871053     DANVILLE                     CA       94526     SFD         650%      6.000       3160.35        360       47088
4871198     COLLEYVILLE                  TX       76034     SFD         625%      5.983       1823.14        360       47088
4871317     BOERNE                       TX       78006     SFD         675%      6.000       1940.93        360       47119
4871327     NAPERVILLE                   IL       60564     SFD         625%      5.983       1624.27        360       47088
4871609     KENILWORTH                   IL       60043     SFD         663%      6.000       5737.19        360       47088
4871671     CHATHAM                      NJ       07928     SFD         625%      5.983       3386.45        360       47088
4871930     BRENTWOOD                    TN       37027     SFD         663%      6.000          2049        360       47058
4872237     SIMI VALLEY                  CA       93065     PUD         688%      6.000       1937.94        360       47088
4872273     EDINA                        MN       55439     SFD         650%      6.000       3792.41        360       47088
4872320     BOULDER                      CO       80301     SFD         650%      6.000       2374.37        360       47088
4872355     RALEIGH                      NC       27614     SFD         650%      6.000       2528.28        360       47088
4873109     CANTON                       GA       30114     SFD         725%      6.000       2376.02        360       47088
4873159     SAN JOSE                     CA       95118     SFD         650%      6.000       1724.29        360       47058
4873242     AMBLER                       PA       19002     SFD         675%      6.000       2235.72        360       47088
4873446     CONCORD                      MA       01742     SFD         675%      6.000       4232.11        360       47088
4873697     POTOMAC                      MD       20854     SFD         688%      6.000       3141.11        360       47088
4873803     MURRAY                       UT       84107     SFD         663%      6.000       1690.43        360       47088
4874028     PRINCETON                    NJ       08540     PUD         638%      6.000       1653.26        360       47119
4874532     HOUSTON                      TX       77079     SFD         663%      6.000       1818.49        360       47088
4874800     MORAGA                       CA       94556     SFD         688%      6.000       2555.46        360       47088
4874878     SCOTTSDALE                   AZ       85259     SFD         600%      5.733       1798.66        360       47088
4874911     GRANITE BAY                  CA       95661     SFD         625%      5.983       1600.87        360       47088
4874991     ELMHURST                     IL       60126     SFD         675%      6.000       1637.72        360       47088
4875046     NAPERVILLE                   IL       60565     SFD         650%      6.000        1527.4        360       47088
4875168     ALEXANDRIA                   VA       22314     PUD         625%      5.983       4002.16        360       47058
4875628     VALENCIA                     CA       91354     SFD         700%      6.000       3081.69        360       47088
4875826     MONTGOMERY                   NJ       08558     SFD         625%      5.983       1839.15        360       47088
4876004     LAFAYETTE                    CA       94549     SFD         625%      5.983        2315.1        360       47088
4876064     LAWRENCEVILLE                GA       30043     SFD         650%      6.000       1703.43        360       47088
4876139     KNOXVILLE                    TN       37922     SFD         763%      6.000       2060.39        360       47088
4877109     CLARKSVILLE                  TN       37043     SFD         688%      6.000       1685.03        360       47088
4877218     CRYSTAL LAKE                 IL       60014     SFD         638%      6.000       1691.94        360       47088
4877328     THE WOODLANDS                TX       77382     SFD         638%      6.000       1856.64        360       47088
4877645     VERNON HILLS                 IL       60061     SFD         688%      6.000       2278.89        360       47088
4877696     THE WOODLANDS                TX       77382     SFD         650%      6.000        1801.4        360       47088
4877971     MURRYSVILLE                  PA       15668     SFD         650%      6.000       1656.02        360       47088
4878363     WILLIAMSTOWN                 KY       41097     SFD         650%      6.000        1801.4        360       47088
4878596     ROLLING MEADOWS              IL       60008     SFD         600%      5.733       1462.91        360       47088
4878607     MENLO PARK                   CA       94025     SFD         688%      6.000       2430.64        360       47088
4878654     MONTEREY                     CA       93940     SFD         650%      6.000       2528.28        360       47088
4879014     ALPHARETTA                   GA       30022     SFD         650%      6.000       1807.72        360       47088
4879020     SUDBURY                      MA       01776     SFD         650%      6.000       2490.35        360       47088
4879240     ATLANTA                      GA       30309     HCO         688%      6.000       1743.17        360       47088
4879603     GRANVILLE                    OH       43023     SFD         638%      6.000       2021.34        360       47058
4879726     FAIRFAX STATION              VA       22039     SFD         713%      6.000       2101.33        360       47088
4880105     ALPHARETTA                   GA       30201     SFD         625%      5.983       1718.47        360       47088
4880297     WOODINVILLE                  WA       98072     SFD         625%      5.983       1994.93        360       47088
4880380     BETHESDA                     MD       20817     SFD         650%      6.000       2528.28        360       47088
4880414     HIGHLANDS RANCH              CO       80126     SFD         638%      6.000       1671.98        360       47088
4880490     ATLANTA                      GA       30305     LCO         638%      6.000       2670.17        360       47088
4880507     NEW YORK                     NY       10024     COP         750%      6.000       2556.51        360       47088
4880681     LONG VALLEY                  NJ       07853     SFD         663%      6.000       2177.06        360       47088
4880928     CHADDS FORD                  PA       19317     SFD         663%      6.000       2064.37        360       47088
4881018     FLOWER MOUND                 TX       75028     SFD         638%      6.000       1513.83        360       47088
4881112     SIMI VALLEY                  CA       93063     SFD         688%      6.000       1832.84        360       47088
4881534     YORBA LINDA                  CA       92686     SFD         638%      6.000       1715.65        360       47088
4881580     MORRISVILLE                  NC       27560     SFD         688%      6.000       1642.33        360       47088
4881984     STAMFORD                     CT       06902     SFD         713%      6.000       2182.85        360       47088
4882192     LIBERTYVILLE                 IL       60048     SFD         638%      6.000       3393.86        360       47088
4882354     SAN CLEMENTE                 CA       92673     SFD         613%      5.858       3117.35        360       47088
4882408     TRUMBULL                     CT       06611     SFD         600%      5.733       1798.66        360       47088
4882578     BROWNSBURG                   IN       46112     SFD         650%      6.000       1704.06        360       47088
4882880     BIRMINGHAM                   MI       48009     SFD         663%      6.000       4072.38        360       47088
4882892     GAITHERSBURG                 MD       20879     SFD         650%      6.000       2313.37        360       47088
4882966     MILL VALLEY                  CA       94941     SFD         663%      6.000       3227.17        360       47088
4883019     DANA POINT                   CA       92629     SFD         650%      6.000       1753.99        360       47088
4883081     RICHMOND                     VA       23233     SFD         650%      6.000       2573.78        360       47088
4883165     PLAINSBORO                   NJ       08536     SFD         663%      6.000        1890.2        360       47088
4883224     NAPERVILLE                   IL       60540     SFD         625%      5.983        1625.5        360       47088
4883298     NEW ORLEANS                  LA       70131     SFD         700%      6.000       2328.56        360       47088
4883945     SAN JOSE                     CA       95120     SFD         700%      6.000        3205.1        360       47088
4883990     SPRING                       TX       77389     SFD         713%      6.000       2186.03        240       43435
4884167     ENCINITAS                    CA       92024     SFD         688%      6.000       2706.55        360       47088
4884265     WATERFORD                    VA       20197     SFD         725%      6.000        2116.8        360       47088
4884510     MORRIS TOWNSHIP              NJ       07960     SFD         650%      6.000       1714.49        360       47088
4884531     TUCSON                       AZ       85750     SFD         625%      5.983       2198.12        360       47119
4884906     KIRKLAND                     WA       98034     SFD         625%      5.983       4002.17        360       47088
4884947     SHREWSBURY                   MA       01545     SFD         688%      6.000       2069.33        360       47088
4884963     BERKLEY                      CA       94707     SFD         600%      5.733       1588.81        360       47058
4885371     LITTLETON                    CO       80128     SFD         650%      6.000       2826.61        360       47088
4885631     EAGAN                        MN       55122     SFD         663%      6.000       1613.59        360       47088
4885641     MISSION VIEJO                CA       92692     SFD         625%      5.983       1871.79        360       47088
4885708     REDONDO BEACH                CA       90278     SFD         675%      6.000       2334.96        360       47088
4885759     WAKE FOREST                  NC       27587     SFD         675%      6.000       3372.72        360       47088
4885885     WELLINGTON                   FL       33414     SFD         638%      6.000       1546.58        360       47058
4885946     AURORA                       CO       80016     SFD         650%      6.000       1592.82        360       47088
4886023     CARLSBAD                     CA       92009     SFD         688%      6.000       1870.61        360       47088
4886035     RIDGEFIELD                   CT       06877     SFD         625%      5.983       1927.97        360       47088
4886050     COPPELL                      TX       75019     SFD         675%      6.000       1686.36        360       47027
4886101     AURORA                       CO       80016     SFD         613%      5.858       1832.55        360       47027
4886238     TUSTIN                       CA       92780     SFD         650%      6.000        1758.1        360       47027
4886316     EASTON                       CT       06612     SFD         600%      5.733       2338.25        360       47088
4886419     CHAPEL HILL                  NC       27516     SFD         663%      6.000       1815.29        360       47088
4886532     MALIBU                       CA       90265     SFD         650%      6.000       2591.48        360       47088
4887260     SOUTHLAKE                    TX       76092     SFD         675%      6.000       2241.56        360       47088
4887573     FOOTHILL RANCH               CA       92610     SFD         763%      6.000       1719.94        360       47088
4887627     SIMSBURY                     CT       06070     SFD         688%      6.000       1697.84        360       47119
4887651     DANBURY                      CT       06811     SFD         688%      6.000       1998.38        360       47088
4888243     THE WOODLANDS                TX       77382     SFD         638%      6.000       1996.39        360       47088
4888357     MIDDLEBURY                   IN       46540     SFD         613%      5.858       2126.64        360       47088
4888385     EDEN PRAIRIE                 MN       55347     SFD         700%      6.000       2514.84        360       47088
4888394     WALLED LAKE                  MI       48390     SFD         650%      6.000       1591.24        360       47088
4888477     RYE                          NY       10580     SFD         650%      6.000       3918.83        360       47088
4888592     SUNNYVALE                    CA       94086     LCO         688%      6.000       2012.83        360       47119
4888819     CLIVE                        IA       50325     SFD         625%      5.983        1539.3        360       47088
4888916     LEXINGTON                    MA       02420     SFD         625%      5.983       3448.02        360       47058
4889027     MCKINNEY                     TX       75023     SFD         663%      6.000       1701.77        360       47027
4889264     NAPERVILLE                   IL       60564     SFD         650%      6.000       1711.65        360       47088
4889323     WARREN                       NJ       07059     SFD         588%      5.608       2661.92        360       47088
4889325     LITTLETON                    CO       80124     SFD         688%      6.000       2036.48        360       47088
4889372     MINNETONKA                   MN       55343     SFD         725%      6.000       2046.53        360       47088
4889446     WESTERVILLE                  OH       43081     SFD         638%      6.000       1871.61        360       47088
4889761     ATLANTA                      GA       30342     SFD         713%      6.000       2021.16        360       47088
4889809     ORINDA                       CA       94563     SFD         713%      6.000       4547.61        360       47088
4889983     NORTH POTOMAC                MD       20878     SFD         700%      6.000       2404.41        360       47119
4890069     CARMEL                       NY       10512     SFD         613%      5.858       1822.84        360       47088
4890120     GLASTONBURY                  CT       06033     SFD         625%      5.983       2719.01        360       47088
4890288     JEFFERSON                    SD       57038     SFD         650%      6.000        2185.7        360       47088
4890988     VIENNA                       VA       22182     SFD         663%      6.000       3406.46        360       47088
4891028     PALOS VERDES ESTATES         CA       90274     SFD         650%      6.000        5562.2        360       47088
4891031     GREEN OAKS                   IL       60048     SFD         625%      5.983       2345.89        360       47088
4891158     COLUMBIA                     MO       65201     SFD         675%      6.000       1997.69        360       47119
4891268     HINGHAM                      MA       02043     SFD         688%      6.000       1881.45        360       47088
4891293     MANASSAS                     VA       20112     SFD         675%      6.000       1653.93        360       47088
4891372     ALPHARETTA                   GA       30022     SFD         650%      6.000       1883.57        360       47088
4891457     BRIDGEWATER                  NJ       08807     SFD         625%      5.983       1847.16        360       47088
4891506     CARY                         NC       27513     SFD         675%      6.000        1945.8        360       47088
4891591     CARY                         IL       60013     SFD         663%      6.000       2484.41        360       47088
4891777     STRATHAM                     NH       03885     SFD         625%      5.983        1539.3        360       47088
4891789     SAN DIEGO                    CA       92130     SFD         675%      6.000       3528.38        360       47088
4891852     ISSAQUAH                     WA       98029     SFD         688%      6.000       2463.16        360       47119
4892090     WEST CHESTER                 PA       19382     SFD         638%      6.000       2557.87        360       47119
4892314     CANTON                       MA       02021     SFD         638%      6.000       2914.73        360       47088
4892601     ATLANTA                      GA       30307     SFD         663%      6.000       1788.39        360       47088
4892806     AURORA                       IL       60504     SFD         613%      5.858       1633.57        360       47119
4892906     ISSAQUAH                     WA       98027     SFD         650%      6.000       1668.66        360       47088
4892912     WESTFORD                     MA       01886     SFD         625%      5.983       1536.84        360       47088
4893359     SOUTHBOROUGH                 MA       01772     SFD         675%      6.000       1602.37        360       47088
4893468     STAMFORD                     CT       06901     SFD         688%      6.000       1591.42        360       47088
4893693     FALLS CHURCH                 VA       22041     SFD         650%      6.000       1587.75        360       47058
4893737     ATLANTA                      GA       30350     SFD         638%      6.000       2645.21        360       47088
4893756     WEST BEND                    WI       53095     SFD         638%      6.000       2074.37        360       47058
4893859     ATLANTA                      GA       30342     SFD         700%      6.000        1889.8        360       47088
4894385     KESWICK                      VA       22947     SFD         675%      6.000       2900.54        360       47088
4894405     NEW HOPE                     PA       18938     SFD         625%      5.983       2863.09        360       47088
4894519     APEX                         NC       27502     SFD         688%      6.000       1874.22        360       47088
4894537     SAN ANTONIO                  TX       78216     SFD         650%      6.000       1990.39        360       47088
4894712     LONG BEACH                   CA       90807     SFD         738%      6.000       1870.01        360       47088
4894730     DOYLESTOWN                   PA       18901     SFD         663%      6.000       1600.78        360       47088
4894798     SANTA ROSA                   CA       95403     SFD         675%      6.000        2594.4        360       47088
4894844     FORT COLLINS                 CO       80528     SFD         613%      5.858        1939.8        360       47088
4895049     MORGAN HILL                  CA       95037     SFD         750%      6.000       2160.58        360       47088
4895689     AUSTIN                       TX       78750     SFD         638%      6.000       1633.92        360       47088
4895983     DENVER                       CO       80206     SFD         688%      6.000        1936.3        360       47088
4896184     DOBBS FERRY                  NY       10522     SFD         663%      6.000       3745.82        360       47088
4896334     INVERNESS                    IL       60010     SFD         600%      5.733       1558.84        360       47119
4896512     EDEN PRAIRIE                 MN       55346     SFD         738%      6.000       1833.06        360       47088
4896538     MCKINNEY                     TX       75070     SFD         725%      6.000       2028.79        360       47058
4896713     REDMOND                      WA       98053     SFD         638%      6.000        1547.2        360       47088
4896721     BRIDGEWATER                  NJ       08807     SFD         650%      6.000       1744.51        360       47088
4896910     BARRINGTON                   IL       60010     SFD         688%      6.000       2303.45        240       43435
4897183     PLEASANTON                   CA       94588     SFD         663%      6.000       1896.29        360       47088
4897323     SOLON                        OH       44139     SFD         650%      6.000       2043.17        360       47088
4897378     BASKING RIDGE                NJ       07920     LCO         638%      6.000       1871.61        360       47088
4897573     SARASOTA                     FL       34240     SFD         688%      6.000       2987.39        360       47088
4897608     AVON                         CT       06001     SFD         675%      6.000       3729.44        360       47119
4897673     CHESTER                      NJ       07930     SFD         638%      6.000       1871.61        360       47119
4897801     WOODBURY                     MN       55125     SFD         663%      6.000       1716.04        360       47088
4897869     CHAPIN                       SC       29036     SFD         700%      6.000       1783.02        360       47088
4897983     MEDIA                        PA       19063     SFD         675%      6.000       2671.58        360       47088
4897986     SARATOGA                     CA       95070     SFD         663%      6.000       4802.34        360       47119
4898319     AUSTIN                       TX       78746     SFD         638%      6.000       3418.19        360       47088
4899456     ANAHEIM HILLS                CA       92808     SFD         700%      6.000        3023.8        360       47088
4899477     FAIRFAX                      VA       22030     SFD         613%      5.858       1519.03        360       47088
4899485     ALPHARETTA                   GA       30022     SFD         675%      6.000       3372.72        360       47088
4899487     COLUMBIA                     SC       29223     SFD         650%      6.000       2228.68        360       47027
4899723     GRANITE BAY                  CA       95746     SFD         675%      6.000       1848.51        360       47088
4899792     OVIEDO                       FL       32765     SFD         713%      6.000       1637.14        360       47119
4899811     BELLEVUE                     WA       98007     SFD         625%      5.983       1847.16        360       47088
4899961     CLAYTON                      CA       94517     SFD         675%      6.000       2200.37        360       47088
4900000     MILPITAS                     CA       95035     SFD         675%      6.000       2581.43        360       47088
4900095     STAMFORD                     CT       06903     SFD         638%      6.000       2545.39        360       47119
4900298     MORRISTOWN                   NJ       07960     SFD         675%      6.000       2423.17        360       47088
4900375     SUNNYVALE                    CA       94087     SFD         675%      6.000        1992.5        360       47088
4900835     UNION                        NJ       07083     SFD         650%      6.000        1850.7        360       47088
4901017     EXTON                        PA       19341     SFD         663%      6.000        1639.2        360       47088
4901116     REDMOND                      WA       98053     SFD         725%      6.000        1944.2        360       47058
4901127     ORINDA                       CA       94563     SFD         638%      6.000       2308.32        360       47088
4901507     BELMONT                      CA       94002     SFD         625%      5.983       2807.68        360       47058
4901753     MEQUON                       WI       53097     SFD         713%      6.000       1852.06        360       47119
4901985     SOUTHLAKE                    TX       76092     SFD         625%      5.983       1847.16        360       47088
4902400     PEWAUKEE                     WI       53072     SFD         663%      6.000       1997.78        360       47088
4902445     REDMOND                      WA       98053     SFD         638%      6.000       2755.01        360       47088
4902586     OMAHA                        NE       68101     SFD         700%      6.000       2514.85        360       47088
4902598     ROSWELL                      GA       30076     SFD         638%      6.000       3431.29        360       47088
4902608     MELROSE                      MA       02176     SFD         675%      6.000       1634.47        360       47119
4902745     WINDSOR                      CO       80550     SFD         625%      5.983       1716.31        360       47058
4903020     WHEATON                      IL       60187     SFD         613%      5.858       1519.03        360       47088
4903349     PLANO                        TX       75093     SFD         625%      5.983       1748.64        360       47088
4903576     SPRINGDALE                   AR       72764     SFD         700%      6.000       2332.22        360       47058
4903755     RIDGEFIELD                   CT       06877     SFD         675%      6.000       1955.53        360       47088
4904128     CORINTH                      TX       76205     SFD         625%      5.983       1622.73        360       47119
4904330     SAN FRANCISCO                CA       94114     SFD         650%      6.000       4013.64        360       47119
4904730     LANDENBERG                   PA       19350     SFD         650%      6.000       1988.81        360       47088
4904815     ORONO                        MN       55356     SFD         675%      6.000       4215.89        360       47088
4905031     CASTRO VALLEY                CA       94546     SFD         688%      6.000       1628.86        360       47119
4905137     NEW FARIFIELD                CT       06810     SFD         638%      6.000          1934        360       47088
4905258     CHESTERFIELD                 MO       63005     SFD         688%      6.000       2496.33        360       47088
4905289     MORAGA                       CA       94556     SFD         725%      6.000       2406.72        360       47088
4905355     SAN FRANCISCO                CA       94123     SFD         775%      6.000       7164.13        360       47088
4905473     DANVILLE                     CA       94526     SFD         650%      6.000       2401.86        360       47088
4905571     ALLEN                        TX       75013     SFD         638%      6.000       1836.67        360       47088
4905630     SCITUATE                     MA       02066     SFD         688%      6.000       2397.47        360       47119
4905706     FRANKLIN                     MA       02038     SFD         688%      6.000       1807.87        360       47058
4905955     RADNOR                       PA       19087     SFD         650%      6.000       4108.45        360       47088
4906296     NEWBURY PARK                 CA       91320     SFD         675%      6.000       1679.87        360       47088
4906427     MORGAN HILL                  CA       95037     SFD         663%      6.000       2463.92        360       47088
4906895     SAN JOSE                     CA       95120     SFD         688%      6.000       2193.49        360       47119
4906956     PLANO                        TX       75093     SFD         650%      6.000       1592.82        360       47058
4906960     ALAMO                        CA       94507     SFD         638%      6.000       2058.78        360       47119
4906961     ROSEVILLE                    CA       95661     SFD         750%      6.000       1901.87        360       47088
4906971     EAST LYME                    CT       06333     SFD         700%      6.000       1706.51        360       47119
4907215     LAS FLORES                   CA       90265     SFD         638%      6.000       2383.19        360       47088
4907478     GLENVAR HEIGHTS              FL       33143     SFD         738%      6.000       3142.58        360       47088
4907574     TUCSON                       AZ       85718     SFD         688%      6.000        2397.8        360       47119
4907575     RIDGEFIELD                   CT       06877     SFD         725%      6.000       2210.26        360       47088
4907624     WOODINVILLE                  WA       98072     SFD         750%      6.000       2485.71        360       47088
4907727     SEATTLE                      WA       98136     SFD         675%      6.000       2542.51        360       47119
4907751     THOUSAND OAKS                CA       91362     SFD         650%      6.000          2168        360       47088
4908176     CARY                         IL       60013     SFD         700%      6.000       2574.73        360       47088
4908184     RENO                         NV       89509     SFD         675%      6.000       1867.97        360       47088
4908379     SAN FRANCISCO                CA       94109     LCO         688%      6.000       3613.11        360       47088
4908557     GUILFORD                     CT       06437     SFD         613%      5.858       1822.84        360       47088
4908871     ATLANTA                      GA       30379     SFD         675%      6.000       2075.52        360       47088
4909028     HOUSTON                      TX       77041     SFD         688%      6.000        1718.2        360       47088
4909168     VALENCIA                     CA       91354     SFD         650%      6.000       1520.12        360       47088
4909576     OAKLAND                      CA       94602     SFD         675%      6.000       1686.36        360       47088
4909610     ALPHARETTA                   GA       30022     SFD         650%      6.000       1927.81        360       47088
4909643     SAN DIEGO                    CA       92129     SFD         750%      6.000       1859.25        360       47088
4909710     SACRAMENTO                   CA       95819     SFD         738%      6.000       2624.57        360       47058
4909786     MANHATTAN BEACH              CA       90266     SFD         713%      6.000       2883.52        360       47119
4909906     LA JOLLA                     CA       92037     SFD         788%      6.000       4350.42        360       47088
4910036     ALPHARETTA                   GA       30005     SFD         675%      6.000       1757.12        360       47058
4910479     ATLANTA                      GA       30319     PUD         725%      6.000       2148.18        360       47119
4910599     DULUTH                       GA       30097     SFD         650%      6.000       2720.43        360       47119
4910631     ALPHARETTA                   GA       30004     SFD         688%      6.000       2575.17        360       47088
4910749     GERMANTOWN                   TN       38138     SFD         700%      6.000       1783.02        360       47088
4910755     HOCKESSIN                    DE       19707     SFD         663%      6.000       1926.06        360       47119
4910897     TIERRA VERDE                 FL       33715     SFD         650%      6.000        1848.8        360       47088
4911139     RANDOLPH                     NJ       07869     SFD         638%      6.000       1803.61        360       47088
4911203     SAN DIEGO                    CA       92128     SFD         650%      6.000       1717.97        360       47088
4911287     MOUNT KISCO                  NY       10549     SFD         675%      6.000       3113.28        360       47088
4911417     SAN DIEGO                    CA       92127     SFD         700%      6.000       1857.53        360       47088
4911808     MADISON                      CT       06443     SFD         675%      6.000       2118.33        360       47119
4911825     SANTA MARIA                  CA       93455     SFD         650%      6.000       2167.37        360       47088
4912022     LOS GATOS                    CA       95032     SFD         663%      6.000       4815.14        360       47088
4912356     ALPHARETTA                   GA       30005     SFD         663%      6.000          2049        360       47058
4912737     WINSTON-SALEM                NC       27104     SFD         688%      6.000       2259.84        360       47088
4912769     HERNDON                      VA       20171     SFD         688%      6.000       1621.96        360       47088
4913250     DOVER                        FL       33527     SFD         650%      6.000       2054.23        360       47088
4913261     MARIETTA                     GA       30067     SFD         650%      6.000       1609.88        360       47088
4913719     WESTPORT                     CT       06883     SFD         613%      5.858       3858.33        360       47088
4914142     WESTPORT                     CT       06880     SFD         688%      6.000       3613.11        360       47088
4914492     CHARLOTTE                    NC       28277     SFD         675%      6.000        1945.8        360       47088
4914502     KINGSVILLE                   TX       78363     SFD         625%      5.983       2138.39        360       47119
4914546     PIEDMONT                     CA       94611     SFD         663%      6.000        2881.4        360       47088
4914716     ALLEN                        TX       75013     SFD         600%      5.733       1717.72        360       47088
4914992     SIMI VALLEY                  CA       93065     SFD         688%      6.000       2474.65        360       47058
4915126     ALAMO                        CA       94507     SFD         725%      6.000       2558.17        360       47088
4915186     NORTH MYRTLE BEACH           SC       29582     SFD         738%      6.000       2066.85        360       47119
4915501     PEACHTREE CITY               GA       30269     SFD         675%      6.000       1803.11        360       47088
4915650     LIBERTYVILLE                 IL       60048     SFD         663%      6.000        2868.6        360       47088
4915668     LITTLETON                    CO       80126     SFD         750%      6.000       1716.93        360       47088
4915709     PITTSFORD                    NY       14534     SFD         650%      6.000       1693.95        360       47119
4915732     EAGLE                        ID       83616     SFD         700%      6.000       1942.69        360       47088
4915897     FRANKLIN                     TN       37067     SFD         675%      6.000       1660.42        360       47119
4916143     MORGAN HILL                  CA       95037     SFD         688%      6.000       2956.18        360       47088
4916490     MATHEWS                      NC       28105     SFD         688%      6.000       1771.09        360       47119
4916644     DUBLIN                       CA       94568     SFD         650%      6.000       3026.03        360       47088
4916678     CLAYTON                      CA       94517     SFD         700%      6.000       3120.27        360       47119
4916807     CLAYTON                      CA       94517     SFD         713%      6.000        2454.7        360       47088
4916895     SCOTCH PLAINS                NJ       07076     SFD         675%      6.000       2302.53        360       47088
4917162     CARMEL                       IN       46032     SFD         650%      6.000       4252.24        360       47088
4917300     MEDIA                        PA       19063     SFD         675%      6.000       2462.08        360       47088
4917504     ARLINGTON                    TX       76016     SFD         663%      6.000       1984.97        360       47088
4917508     ORLANDO                      FL       32836     SFD         688%      6.000       2680.27        360       47119
4917774     THOUSAND OAKS                CA       91320     SFD         675%      6.000       2072.92        360       47088
4917786     SUNNYVALE                    CA       94086     SFD         700%      6.000       2767.66        360       47088
4917995     HIGHLANDS RANCH              CO       80126     SFD         713%      6.000       1877.32        360       47088
4918204     ELK GROVE                    CA       95624     SFD         688%      6.000       2207.29        360       47119
4918379     OLD LYME                     CT       06371     SFD         625%      5.983       1526.98        360       47119
4918394     UNION CITY                   CA       94587     SFD         638%      6.000       2036.32        360       47088
4918429     MORRISVILLE                  NC       27560     SFD         713%      6.000       1949.41        360       47088
4918710     BELLEVUE                     WA       98006     SFD         650%      6.000        1769.8        360       47088
4918720     SPRINGBORO                   OH       45066     SFD         638%      6.000       1715.65        360       47119
4918874     AUSTIN                       TX       78746     SFD         675%      6.000       3891.59        360       47088
4918990     CARY                         NC       27519     SFD         675%      6.000       1744.73        360       47088
4919151     HIGHLANDS RANCH              CO       80126     SFD         650%      6.000       1698.05        360       47058
4920035     ZIONSVILLE                   IN       46077     SFD         650%      6.000       2307.05        360       47088
4920412     SAN DIEGO                    CA       92131     SFD         750%      6.000       2335.38        360       47088
4920454     DANVILLE                     CA       94506     SFD         688%      6.000        2637.9        360       47088
4921378     BURR RIDGE                   IL       60521     SFD         650%      6.000       2983.37        360       47119
4921388     ENCINITAS                    CA       92024     SFD         675%      6.000       1738.25        360       47088
4921822     SAN RAMON                    CA       94583     SFD         725%      6.000        2511.1        360       47088
4922048     RIDGEFIELD                   CT       06877     SFD         688%      6.000       2364.95        360       47088
4922615     MASON                        OH       45040     SFD         688%      6.000       1744.15        360       47119
4922732     PINELLAS PARK                FL       33782     SFD         688%      6.000        2417.5        360       47119
4922946     CINCINNATI                   OH       45242     SFD         663%      6.000       1760.86        360       47119
4923699     WEST CHESTER                 PA       19382     SFD         650%      6.000       1779.91        360       47119
4923701     TROY                         MI       48084     SFD         675%      6.000       2010.66        360       47088
4923727     MOORPARK                     CA       93021     SFD         650%      6.000       1562.48        360       47119
4923860     ATLANTA                      GA       30306     SFD         638%      6.000       1811.72        360       47088
4924306     ALLEN                        TX       75013     SFD         688%      6.000       1834.15        360       47088
4925008     KENNETT SQUARE               PA       19348     SFD         638%      6.000       1559.68        360       47119
4925114     ENCINITAS                    CA       92024     SFD         663%      6.000        1639.2        360       47088
4925464     SAINT CHARLES                IL       60174     SFD         663%      6.000       1754.78        360       47088
4926379     SAN RAMON                    CA       94583     SFD         700%      6.000       1995.91        360       47088
4926537     MORGAN HILL                  CA       95037     SFD         675%      6.000       3787.81        360       47088
4927032     DOYLESTOWN                   PA       18901     SFD         688%      6.000       1839.41        360       47088
4927854     LITTLETON                    CO       80128     SFD         650%      6.000       2504.89        360       47088
4927855     SHERBORN                     MA       01770     SFD         763%      6.000       3538.97        360       47088
4929124     CHARLOTTE                    NC       28270     SFD         675%      6.000       1835.86        360       47119
4929640     DANVILLE                     CA       94526     SFD         650%      6.000       2730.54        360       47088
4930037     RIVERSIDE                    CT       06878     SFD         650%      6.000       3729.21        360       47088
4932294     CHESTERFIELD                 MO       63005     SFD         663%      6.000        2881.4        360       47119




</TABLE>



TABLE (CONTINUED)

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

4682079     294951.99     80.00                             0.250                  0.017      0.608
4696619     243152.55     80.00                             0.250                  0.017      0.483
4700460        400000     59.34                             0.250                  0.017      0.858
4704406     184219.83     95.00                    6        0.250                  0.017      0.983
4708140      576938.7     69.92                             0.250                  0.017      0.000
4721077     353672.13     69.84                             0.250                  0.017      0.108
4723150     246942.36     78.72                             0.250                  0.017      0.608
4729629     397907.11     79.97    GD 3YR                   0.250                  0.017      0.483
4734036        474350     69.98                             0.250                  0.017      0.108
4736869     345622.23     93.58                   12        0.250                  0.017      0.233
4737990     379048.59     70.00    GD 5YR                   0.250                  0.017      0.108
4738974        356798     79.99                             0.250                  0.017      1.483
4746617     416632.09     87.42                             0.250                  0.017      0.358
4748024     269256.36     70.00                             0.250                  0.017      0.233
4751861     421272.87     80.00    GD 3YR                   0.250                  0.017      0.233
4752261     297943.26     79.99                             0.250                  0.017      0.483
4753325     263522.91     80.00                             0.250                  0.017      0.483
4759138        343200     80.00                             0.250                  0.017      0.358
4759559        320000     64.68                             0.250                  0.017      0.233
4759604     240182.67     87.24                             0.250                  0.017      0.233
4760588     266840.39     79.70                             0.250                  0.017      0.000
4763234        470000     75.81                             0.250                  0.017      0.483
4763516        242000     79.05                             0.250                  0.017      0.108
4763919      306935.5     79.89                             0.250                  0.017      0.483
4765411     287845.81     79.99                             0.250                  0.017      0.358
4765538     277430.17     93.31                   17        0.250                  0.017      0.608
4765862     222560.38     79.99                             0.250                  0.017      0.608
4770663      346208.9     87.50                   11        0.250                  0.017      0.608
4771851     380222.34     71.33                             0.250                  0.017      0.483
4772567     764508.24     80.00                             0.250                  0.017      0.233
4780536     414815.44     80.00                             0.250                  0.017      0.108
4780600     297017.91     76.49                             0.250                  0.017      0.000
4781066     316720.31     78.48                             0.250                  0.017      0.358
4782454     289238.29     76.18                             0.250                  0.017      0.233
4783415     260758.25     76.54                             0.250                  0.017      0.108
4788912        370000     73.71                             0.250                  0.017      0.608
4789048     370724.66     79.10                             0.250                  0.017      1.233
4790779     252266.13     70.53                             0.250                  0.017      0.108
4793983     249757.01     69.37                             0.250                  0.017      0.000
4795036     315714.33     80.00                             0.250                  0.017      0.233
4797610     328003.21     79.99                             0.250                  0.017      0.233
4799202     399638.39     62.50                             0.250                  0.017      0.233
4800741        340000     77.27                             0.250                  0.017      0.233
4801299        519350     69.99    GD 3YR                   0.250                  0.017      0.733
4801927     269150.48     79.99                             0.250                  0.017      0.108
4802176        326700     90.00                             0.250                  0.017      1.233
4802654     244789.06     75.38                             0.250                  0.017      0.483
4805631     274574.74     89.99                             0.250                  0.017      0.733
4806103     249762.78     55.50    GD 5YR                   0.250                  0.017      0.000
4806130        261850     79.99                             0.250                  0.017      0.233
4806662     299715.34     68.97                             0.250                  0.017      0.000
4807274     330554.58     80.00                             0.250                  0.017      0.483
4807374     749321.98     78.99                             0.250                  0.017      0.233
4810819        308000     80.00                             0.250                  0.017      0.358
4812116     697509.07     58.33                             0.250                  0.017      0.358
4812385     437141.38     70.00                             0.250                  0.017      0.733
4813713     269731.21     75.02                             0.250                  0.017      0.000
4814609     318704.54     86.32                   12        0.250                  0.017      0.108
4815712     334316.85     79.93    GD 3YR                   0.250                  0.017      0.000
4816649     301264.79     90.00                             0.250                  0.017      0.983
4817729     539067.52     83.08                   17        0.250                  0.017      0.483
4817983     296974.68     80.00                             0.250                  0.017      0.108
4819841        524000     56.71                             0.250                  0.017      0.733
4820625     337951.56     89.99                             0.250                  0.017      0.358
4821947     391119.48     90.00                   17        0.250                  0.017      0.000
4822524     279516.67     80.00                             0.250                  0.017      0.233
4822627        322400     80.00                             0.250                  0.017      0.608
4823708     499619.54     63.69                             0.250                  0.017      1.108
4823817     279764.76     80.00                             0.250                  0.017      0.608
4824412     267275.26     84.92                             0.250                  0.017      0.608
4826052     322928.47     80.00                             0.250                  0.017      0.608
4827321     399647.08     56.34                             0.250                  0.017      0.358
4827612     327496.39     85.00    GD 3YR         17        0.250                  0.017      0.108
4828179        400000     80.00                             0.250                  0.017      0.108
4828864     419620.31     78.79                             0.250                  0.017      0.233
4829124        350000     77.95                             0.250                  0.017      0.358
4829792     263122.09     94.99                   33        0.250                  0.017      0.233
4830424     252327.18     94.98                             0.250                  0.017      0.358
4830533     240152.98     95.00                   11        0.250                  0.017      0.733
4830868     454044.17     61.29                             0.250                  0.017      0.000
4830876     269329.04     90.00                             0.250                  0.017      0.733
4831320     539546.33     80.00                             0.250                  0.017      0.608
4831798     359674.55     62.61                             0.250                  0.017      0.233
4831925     250168.07     80.00                             0.250                  0.017      0.108
4832837     329323.09     80.00                             0.250                  0.017      0.608
4833404     258779.15     79.99                             0.250                  0.017      0.233
4833993     487548.01     80.00                             0.250                  0.017      0.108
4834824     342011.42     77.39                             0.250                  0.017      0.608
4835247     319724.48     77.11                             0.250                  0.017      0.483
4836641     399129.97     85.00                             0.250                  0.017      0.108
4836687     294769.86     94.55                             0.250                  0.017      0.983
4836724     339700.02     77.80                             0.250                  0.017      0.358
4837081     287758.04     90.00                             0.250                  0.017      0.608
4837210     249773.99     54.95                             0.250                  0.017      0.233
4838519     283243.71     90.00                   17        0.250                  0.017      0.233
4839717        265000     51.06                             0.250                  0.017      0.108
4839722     350482.87     80.00                             0.250                  0.017      0.233
4839758     310732.23     59.24                             0.250                  0.017      0.483
4840197      349691.2     79.55                             0.250                  0.017      0.358
4840725      269510.5     60.00                             0.250                  0.017      0.233
4841005     259770.61     80.00                             0.250                  0.017      0.358
4841322        550000     62.57                             0.250                  0.017      0.108
4842212     345901.64     90.00                    6        0.250                  0.017      0.483
4842556     384651.95     69.37                             0.250                  0.017      0.233
4842674     322327.61     67.71                             0.250                  0.017      0.233
4842941     255779.58     80.00                             0.250                  0.017      0.483
4842972     248310.91     94.99                             0.250                  0.017      1.108
4843730     446985.61     79.99                             0.250                  0.017      0.108
4843777        420000     80.00                             0.250                  0.017      0.608
4844093      507551.8     80.00                             0.250                  0.017      0.358
4844128     374320.14     49.67                             0.250                  0.017      0.233
4844623        381600     80.00                             0.250                  0.017      0.483
4845579     288501.39     84.99                             0.250                  0.017      0.483
4846968     519469.83     64.00                             0.250                  0.017      0.000
4847175        292500     90.00                   11        0.250                  0.017      0.483
4847766     269015.17     95.00                             0.250                  0.017      0.483
4847777     303518.62     79.98                             0.250                  0.017      0.108
4847792     379648.04     78.24                             0.250                  0.017      0.108
4848121     399274.82     90.00                   12        0.250                  0.017      0.233
4848139     497571.23     80.00    GD 5YR                   0.250                  0.017      0.483
4848219     555555.37     80.00    GD 5YR                   0.250                  0.017      0.858
4848348      278771.3     90.00                             0.250                  0.017      0.733
4848359      292060.4     79.99                             0.250                  0.017      0.733
4848804      304717.5     75.31                             0.250                  0.017      0.108
4849001     315740.97     85.41                             0.250                  0.017      0.733
4849516     449602.97     78.95                             0.250                  0.017      0.358
4849520      526778.4     80.00                             0.250                  0.017      0.858
4850173     325633.19     69.80                             0.250                  0.017      0.000
4850379      286946.6     80.00                             0.250                  0.017      0.358
4850778     319703.61     64.65                             0.250                  0.017      0.108
4851204     359697.55     90.00                             0.250                  0.017      0.608
4851264     281780.01     80.00                             0.250                  0.017      0.983
4851528     299735.31     75.00                             0.250                  0.017      0.358
4851629     314760.31     90.00                   17        0.250                  0.017      1.108
4852239     254769.47     75.00                             0.250                  0.017      0.233
4852703     247786.47     80.00                             0.250                  0.017      0.483
4852718     279764.76     42.59                             0.250                  0.017      0.608
4852883     249784.75     78.37                             0.250                  0.017      0.483
4853298     364677.96     65.06                             0.250                  0.017      0.358
4853394     243804.87     80.00                             0.250                  0.017      0.858
4853427     349651.57     79.55                             0.250                  0.017      0.000
4853870     267501.77     80.00                             0.250                  0.017      0.108
4853912     352496.24     90.00                             0.250                  0.017      0.483
4854257     263866.98     95.00                   11        0.250                  0.017      0.358
4854523     242995.67     95.00                             0.250                  0.017      0.608
4854619     362894.86     80.00                             0.250                  0.017      0.608
4854621     574429.36     80.00                             0.250                  0.017      0.233
4854939     339007.86     80.00                             0.250                  0.017      0.483
4855340        275500     95.00    GD 3YR                   0.250                  0.017      0.358
4855392        250000     69.93                             0.250                  0.017      0.733
4855530     299728.79     80.00                             0.250                  0.017      0.233
4855831     459552.91     80.00                             0.250                  0.017      0.000
4855966     282268.44     94.99                             0.250                  0.017      0.733
4856089     342689.92     73.29                             0.250                  0.017      0.233
4856345     244789.06     66.23                             0.250                  0.017      0.483
4856409        378000     70.00    GD 7YR                   0.250                  0.017      0.358
4856413      296089.3     80.00                             0.250                  0.017      0.108
4856819        257000     86.82                   11        0.250                  0.017      0.233
4856934     358683.26     89.99                             0.250                  0.017      0.358
4857051     359658.41     80.00                             0.250                  0.017      0.000
4857098     559481.32     80.00                             0.250                  0.017      0.108
4857223      349395.6     63.64                             0.250                  0.017      0.483
4857258     749354.26     39.47    GD 3YR                   0.250                  0.017      0.483
4857350     407612.87     79.82                             0.250                  0.017      0.000
4858065     443000.39     80.00                             0.250                  0.017      0.233
4858439     535560.64     80.00                             0.250                  0.017      0.733
4858634     428402.84     80.00                             0.250                  0.017      0.108
4858667     377666.49     78.75    GD 2YR                   0.250                  0.017      0.358
4858933     432903.53     89.99                             0.250                  0.017      0.858
4859064     490088.04     76.60                             0.250                  0.017      0.108
4859394     299708.41     67.29    GD 5YR                   0.250                  0.017      0.000
4859460        288900     90.00                             0.250                  0.017      0.858
4859545     271648.16     79.99                             0.250                  0.017      0.108
4859570     300359.61     90.00                   11        0.250                  0.017      0.858
4860063        468000     80.00                             0.250                  0.017      0.733
4860124     265273.77     80.00                             0.250                  0.017      0.858
4860850     469564.69     71.00                             0.250                  0.017      0.108
4860960      349667.9     59.83                             0.250                  0.017      0.000
4860990     279734.32     68.29                             0.250                  0.017      0.000
4861641     247281.64     90.00                             0.250                  0.017      0.358
4861772     298249.22     80.00                             0.250                  0.017      0.608
4862019     422127.23     67.87                             0.250                  0.017      0.358
4862192     646676.23     78.79                             0.250                  0.017      0.608
4862796     312474.06     90.00                             0.250                  0.017      0.358
4862821     284394.57     87.46                   13        0.250                  0.017      0.858
4863297     259372.84     94.98                   12        0.250                  0.017      0.733
4863492     343426.27     79.99                             0.250                  0.017      0.233
4863497     321708.91     59.41                             0.250                  0.017      0.233
4863851     287758.04     88.34    GD 6YR                   0.250                  0.017      0.608
4864059      399655.6     50.70                             0.250                  0.017      0.483
4864094     299506.75     80.00                             0.250                  0.017      0.733
4864140     738658.42     80.00    GD 3YR                   0.250                  0.017      0.233
4864152     343681.38     80.00                             0.250                  0.017      0.108
4864337     309078.29     90.00    GD 5YR                   0.250                  0.017      0.608
4864486     386059.08     80.00                             0.250                  0.017      0.358
4865205     649397.97     71.04                             0.250                  0.017      0.108
4865321      423616.7     80.00                             0.250                  0.017      0.233
4865468     254164.37     80.00                             0.250                  0.017      0.108
4865580     296381.82     85.00    GD 3YR         11        0.250                  0.017      0.233
4865593     269743.81     65.06                             0.250                  0.017      0.000
4865612        350000     59.04                             0.250                  0.017      0.608
4865729     274757.37     66.67                             0.250                  0.017      0.358
4865746     299456.11     78.95                             0.250                  0.017      0.233
4866160     309437.98     70.94                             0.250                  0.017      0.233
4866296     249779.43     89.29                             0.250                  0.017      0.358
4866393     415076.38     61.69                             0.250                  0.017      0.000
4866437      368846.2     79.99                             0.250                  0.017      0.358
4866565     283562.75     79.98                             0.250                  0.017      0.358
4866761      310219.3     90.00                   12        0.250                  0.017      0.233
4866827     300114.96     87.07                   17        0.250                  0.017      0.000
4866920     311744.25     80.00                             0.250                  0.017      0.733
4866943     369062.11     78.72                             0.250                  0.017      0.608
4866955     599444.28     60.30                             0.250                  0.017      0.108
4867380     280469.91     77.81                             0.250                  0.017      0.733
4867485     247541.85     89.99                             0.250                  0.017      0.608
4867598     296190.16     90.83                    1        0.250                  0.017      0.233
4867720     279746.87     80.00                             0.250                  0.017      0.233
4868003     245960.71     79.99                             0.250                  0.017      0.000
4868364     292235.58     90.00                             0.250                  0.017      0.233
4868721     252565.85     80.00                             0.250                  0.017      0.108
4868917     279734.32     80.00                             0.250                  0.017      0.000
4869046      257728.8     80.00                             0.250                  0.017      0.483
4869138        261250     95.00                   33        0.250                  0.017      0.608
4869234     389688.12     84.97    GD 3YR                   0.250                  0.017      0.858
4869568     278747.78     90.00                   12        0.250                  0.017      0.233
4869801     257109.88     80.00                             0.250                  0.017      0.000
4870215      247775.8     80.00                             0.250                  0.017      0.233
4870253     562952.31     70.00    GD 3YR                   0.250                  0.017      0.000
4870298        637500     74.39                             0.250                  0.017      0.608
4870337     296381.82     92.99                   11        0.250                  0.017      0.233
4870462     314722.08     90.00                             0.250                  0.017      0.358
4870685     244694.25     94.23                             0.250                  0.017      0.608
4871053     499547.98     69.93    GD 6YR                   0.250                  0.017      0.233
4871198     295819.05     90.00                   33        0.250                  0.017      0.000
4871317        299250     95.00                             0.250                  0.017      0.483
4871327     263549.69     80.00                             0.250                  0.017      0.000
4871609     895209.48     80.00                             0.250                  0.017      0.358
4871671     549478.13     61.15                             0.250                  0.017      0.000
4871930     319433.78     48.27                             0.250                  0.017      0.358
4872237     294752.16     77.44                             0.250                  0.017      0.608
4872273     599457.59     80.00                             0.250                  0.017      0.233
4872320      375310.4     89.99                             0.250                  0.017      0.233
4872355     399638.39     57.41                             0.250                  0.017      0.233
4873109     348028.29     90.00                             0.250                  0.017      0.983
4873159     272305.42     80.00                             0.250                  0.017      0.233
4873242     344403.22     90.00                             0.250                  0.017      0.483
4873446      651938.2     75.00    GD10YR                   0.250                  0.017      0.483
4873697     477748.29     79.99                             0.250                  0.017      0.608
4873803     263767.07     80.00                             0.250                  0.017      0.358
4874028        265000     79.82    GD 3YR                   0.250                  0.017      0.108
4874532     283749.43     80.00                             0.250                  0.017      0.358
4874800     388673.19     67.18                             0.250                  0.017      0.608
4874878     299701.34     55.97                             0.250                  0.017      0.000
4874911      259753.3     80.00                             0.250                  0.017      0.000
4874991     252282.59     74.59                             0.250                  0.017      0.483
4875046     241431.54     90.00                   33        0.250                  0.017      0.233
4875168     648763.29     75.06                             0.250                  0.017      0.000
4875628     462820.31     80.00                             0.250                  0.017      0.733
4875826     298319.33     90.00                             0.250                  0.017      0.000
4876004     375643.23     79.41                             0.250                  0.017      0.000
4876064     269256.36     89.87                             0.250                  0.017      0.233
4876139     290889.31     84.99                             0.250                  0.017      1.358
4877109      256284.5     90.00                             0.250                  0.017      0.608
4877218     270948.81     79.53                             0.250                  0.017      0.108
4877328     297324.36     80.00                             0.250                  0.017      0.108
4877645     346608.56     89.91                   13        0.250                  0.017      0.608
4877696     284742.35     78.08                             0.250                  0.017      0.233
4877971     261763.15     80.00                             0.250                  0.017      0.233
4878363     284742.35     89.91                             0.250                  0.017      0.233
4878596     243757.09     80.00    GD 2YR                   0.250                  0.017      0.000
4878607     369689.15     89.16                   12        0.250                  0.017      0.608
4878654     399638.39     61.54                             0.250                  0.017      0.233
4879014     285741.45     80.00                             0.250                  0.017      0.233
4879020     393643.82     80.00                             0.250                  0.017      0.233
4879240     265127.06     89.99                             0.250                  0.017      0.608
4879603     323398.23     90.00                    6        0.250                  0.017      0.108
4879726     311650.58     79.99                             0.250                  0.017      0.858
4880105     278835.18     79.99                             0.250                  0.017      0.000
4880297     323692.57     63.65                             0.250                  0.017      0.000
4880380     399638.39     89.19                   11        0.250                  0.017      0.233
4880414     267751.77     79.88                             0.250                  0.017      0.108
4880490     427603.58     80.00                             0.250                  0.017      0.108
4880507     365353.65     75.00                             0.250                  0.017      1.233
4880681     339700.02     80.00                             0.250                  0.017      0.358
4880928     322115.55     80.00                             0.250                  0.017      0.358
4881018     242425.25     79.99                             0.250                  0.017      0.108
4881112      278765.6     90.00                             0.250                  0.017      0.608
4881534     274745.29     52.38                             0.250                  0.017      0.108
4881580     249789.96     85.62                             0.250                  0.017      0.608
4881984      323740.9     90.00                             0.250                  0.017      0.858
4882192     543496.14     80.00                             0.250                  0.017      0.108
4882354     512551.34     69.99                             0.250                  0.017      0.000
4882408     299701.34     58.25                             0.250                  0.017      0.000
4882578     269356.27     94.60                             0.250                  0.017      0.233
4882880     635438.87     80.00                             0.250                  0.017      0.358
4882892     365669.13     80.00                             0.250                  0.017      0.233
4882966     503555.33     80.00    GD 3YR                   0.250                  0.017      0.358
4883019     277249.14     73.51                             0.250                  0.017      0.233
4883081     406831.89     80.00                             0.250                  0.017      0.233
4883165     294939.55     90.00                             0.250                  0.017      0.358
4883224      263749.5     80.00                             0.250                  0.017      0.000
4883298     349713.11     74.00                             0.250                  0.017      0.733
4883945     481355.11     72.44    GD 3YR                   0.250                  0.017      0.733
4883990     278722.02     89.06                   11        0.250                  0.017      0.858
4884167     411653.87     80.00                             0.250                  0.017      0.608
4884265     310057.93     90.00                             0.250                  0.017      0.983
4884510     271004.78     70.00                             0.250                  0.017      0.233
4884531        357000     70.00                             0.250                  0.017      0.000
4884906     649383.25     75.14                             0.250                  0.017      0.000
4884947     314735.36     75.72                             0.250                  0.017      0.608
4884963     264471.06     63.86                             0.250                  0.017      0.000
4885371     446795.72     80.00                             0.250                  0.017      0.233
4885631     251777.66     80.00                             0.250                  0.017      0.358
4885641     303711.54     80.00    GD 2YR                   0.250                  0.017      0.000
4885708     359690.04     80.00                             0.250                  0.017      0.483
4885759     519552.28     68.87                             0.250                  0.017      0.483
4885885     247439.56     79.99                             0.250                  0.017      0.108
4885946     251772.18     80.00                             0.250                  0.017      0.233
4886023     284510.77     79.99                             0.250                  0.017      0.608
4886035     312827.89     75.00                             0.250                  0.017      0.000
4886050     259324.63     80.00                             0.250                  0.017      0.483
4886101     300716.11     80.00                             0.250                  0.017      0.000
4886238     277391.54     79.99                             0.250                  0.017      0.233
4886316     389611.75     82.63                   17        0.250                  0.017      0.000
4886419     283249.87     87.64                             0.250                  0.017      0.358
4886532     409629.35     80.00                             0.250                  0.017      0.233
4887260     345302.44     80.00                             0.250                  0.017      0.483
4887573     242824.12     89.01    GD 5YR                   0.250                  0.017      1.358
4887627        258450     79.99                             0.250                  0.017      0.608
4887651     303944.43     80.00                             0.250                  0.017      0.608
4888243     319703.61     75.21                             0.250                  0.017      0.108
4888357     349659.82     31.82                             0.250                  0.017      0.000
4888385     377690.16     90.00                   33        0.250                  0.017      0.733
4888394     251522.41     95.00                    6        0.250                  0.017      0.233
4888477      619439.5     80.00                             0.250                  0.017      0.233
4888592        306400     80.00                             0.250                  0.017      0.608
4888819     249762.78     80.00                             0.250                  0.017      0.000
4888916     558934.53     80.00                             0.250                  0.017      0.000
4889027     265064.65     80.00                             0.250                  0.017      0.358
4889264     270555.18     80.00                             0.250                  0.017      0.233
4889323      449541.2     64.29                             0.250                  0.017      0.000
4889325     309739.56     47.73                             0.250                  0.017      0.608
4889372     299765.97     88.52                   17        0.250                  0.017      0.983
4889446     299722.14     74.35                             0.250                  0.017      0.108
4889761     299760.09     58.24                             0.250                  0.017      0.858
4889809      674460.2     69.31    GD 3YR                   0.250                  0.017      0.858
4889983        361400     78.33                             0.250                  0.017      0.733
4890069     299708.41     60.00                             0.250                  0.017      0.000
4890120     441180.99     80.00                             0.250                  0.017      0.000
4890288     345487.38     89.99                   12        0.250                  0.017      0.233
4890988     531530.62     70.00                             0.250                  0.017      0.358
4891028     879204.47     80.00    GD 4YR                   0.250                  0.017      0.233
4891031     380638.48     74.56                             0.250                  0.017      0.000
4891158        308000     80.00                             0.250                  0.017      0.483
4891268     286159.38     80.00                             0.250                  0.017      0.608
4891293     254780.45     85.00                             0.250                  0.017      0.483
4891372      297730.6     80.00                             0.250                  0.017      0.233
4891457     299715.34     77.17                             0.250                  0.017      0.000
4891506      299741.7     74.07                             0.250                  0.017      0.483
4891591     387657.67     80.00                             0.250                  0.017      0.358
4891777     249762.78     74.07                             0.250                  0.017      0.000
4891789     543531.62     80.00                             0.250                  0.017      0.483
4891852        374950     74.99                             0.250                  0.017      0.608
4892090        410000     61.66                             0.250                  0.017      0.108
4892314     466767.27     80.00                             0.250                  0.017      0.108
4892601     279053.58     95.00                             0.250                  0.017      0.358
4892806        268850     79.99                             0.250                  0.017      0.000
4892906     263761.34     80.00                             0.250                  0.017      0.233
4892912     249363.16     80.00                             0.250                  0.017      0.000
4893359     246837.29     69.83                             0.250                  0.017      0.483
4893468     242046.47     95.00                             0.250                  0.017      0.608
4893693      250744.6     80.00                             0.250                  0.017      0.233
4893737     423607.29     80.00                             0.250                  0.017      0.108
4893756     331882.44     75.23                             0.250                  0.017      0.108
4893859     283817.16     95.00                             0.250                  0.017      0.733
4894385     446814.96     80.00                             0.250                  0.017      0.483
4894405     464558.78     68.28    GD 3YR                   0.250                  0.017      0.000
4894519     285060.31     94.99                             0.250                  0.017      0.608
4894537     314615.32     90.00                             0.250                  0.017      0.233
4894712     270543.97     95.00                   17        0.250                  0.017      1.108
4894730     249779.43     80.00                             0.250                  0.017      0.358
4894798      399655.6     62.70    GD 5YR                   0.250                  0.017      0.483
4894844     318939.71     79.99                             0.250                  0.017      0.000
4895049     308770.67     86.07                             0.250                  0.017      1.233
4895689     261657.42     76.59                             0.250                  0.017      0.108
4895983     294502.37     90.00                   11        0.250                  0.017      0.608
4896184     584483.87     85.40                   17        0.250                  0.017      0.358
4896334        260000     51.49                             0.250                  0.017      0.000
4896512     265198.04     90.00                   17        0.250                  0.017      1.108
4896538      296934.6     79.31                             0.250                  0.017      0.983
4896713      247770.3     80.00    GD 3YR                   0.250                  0.017      0.108
4896721     275750.49     80.00                             0.250                  0.017      0.233
4896910      299415.3     52.72                             0.250                  0.017      0.608
4897183      295888.7     77.46                             0.250                  0.017      0.358
4897323     322957.77     75.00                             0.250                  0.017      0.233
4897378     299722.14     43.82                             0.250                  0.017      0.108
4897573     454367.95     85.00                   11        0.250                  0.017      0.608
4897608        575000     76.67                             0.250                  0.017      0.483
4897673        300000     75.95                             0.250                  0.017      0.108
4897801     267763.54     80.00                             0.250                  0.017      0.358
4897869     267780.31     80.00                             0.250                  0.017      0.733
4897983     411545.36     80.00                             0.250                  0.017      0.483
4897986        750000     75.00                             0.250                  0.017      0.358
4898319     547392.53     80.00                             0.250                  0.017      0.108
4899456     454127.45     90.00                             0.250                  0.017      0.733
4899477     249757.01     59.54                             0.250                  0.017      0.000
4899485     519552.28     80.00                             0.250                  0.017      0.483
4899487     351638.52     74.23                             0.250                  0.017      0.233
4899723     284754.62     69.09                             0.250                  0.017      0.483
4899792        243000     69.91                             0.250                  0.017      0.858
4899811     299715.34     67.42                             0.250                  0.017      0.000
4899961     338957.91     89.99                             0.250                  0.017      0.483
4900000     397657.32     76.83                             0.250                  0.017      0.483
4900095        408000     80.00                             0.250                  0.017      0.108
4900298     373278.33     80.00    GD 3YR                   0.250                  0.017      0.483
4900375      306935.5     80.00                             0.250                  0.017      0.483
4900835      292535.3     80.00                             0.250                  0.017      0.233
4901017     255774.13     80.00                             0.250                  0.017      0.358
4901116     284554.01     64.56                             0.250                  0.017      0.983
4901127     369657.31     50.00                             0.250                  0.017      0.108
4901507     455132.39     80.00                             0.250                  0.017      0.000
4901753        274900     68.74                             0.250                  0.017      0.858
4901985     299715.34     52.17                             0.250                  0.017      0.000
4902400     311724.72     80.00                             0.250                  0.017      0.358
4902445     441190.99     80.00                             0.250                  0.017      0.108
4902586     377690.15     90.00    GD 5YR         11        0.250                  0.017      0.733
4902598     549490.59     71.43                             0.250                  0.017      0.108
4902608        252000     90.00                             0.250                  0.017      0.483
4902745     278219.66     79.99                             0.250                  0.017      0.000
4903020     249757.01     65.70                             0.250                  0.017      0.000
4903349     283730.53     80.00                             0.250                  0.017      0.000
4903576     349973.64     90.00                   24        0.250                  0.017      0.733
4903755     301240.41     90.00    GD 3YR                   0.250                  0.017      0.483
4904128        263550     79.95                             0.250                  0.017      0.000
4904330        635000     77.91                             0.250                  0.017      0.233
4904730     314365.54     89.99                   12        0.250                  0.017      0.233
4904815     649440.36     77.38    GD 3YR                   0.250                  0.017      0.483
4905031        247950     80.00    GD 3YR                   0.250                  0.017      0.608
4905137     309712.88     80.00                             0.250                  0.017      0.108
4905258     379680.75     80.00                             0.250                  0.017      0.608
4905289     352524.78     90.00                   33        0.250                  0.017      0.983
4905355      999294.2     50.00    GD 3YR                   0.250                  0.017      1.483
4905473     379656.47     62.30    GD 8YR                   0.250                  0.017      0.233
4905571     294127.33     80.00                             0.250                  0.017      0.108
4905630        364950     90.00                             0.250                  0.017      0.608
4905706     274736.27     80.00                             0.250                  0.017      0.608
4905955     649412.38     71.00                             0.250                  0.017      0.233
4906296     258777.01     70.00                             0.250                  0.017      0.483
4906427      384460.5     80.00                             0.250                  0.017      0.358
4906895        333900     70.00    GD 2YR                   0.250                  0.017      0.608
4906956     251543.13     80.00                             0.250                  0.017      0.233
4906960        330000     36.67                             0.250                  0.017      0.108
4906961     271798.13     79.77                             0.250                  0.017      1.233
4906971        256500     90.00                             0.250                  0.017      0.733
4907215     381646.19     60.44                             0.250                  0.017      0.108
4907478     454653.77     61.49                             0.250                  0.017      1.108
4907574        365000     89.68                             0.250                  0.017      0.608
4907575     323747.24     80.00                             0.250                  0.017      0.983
4907624     355236.17     90.00                             0.250                  0.017      1.233
4907727        392000     80.00                             0.250                  0.017      0.483
4907751     342689.92     61.80                             0.250                  0.017      0.233
4908176     386682.77     90.00                             0.250                  0.017      0.733
4908184     287752.03     67.61                             0.250                  0.017      0.483
4908379     549537.93     59.98                             0.250                  0.017      0.608
4908557     299708.41     38.96                             0.250                  0.017      0.000
4908871     319224.48     80.00                             0.250                  0.017      0.483
4909028     261330.26     94.98                             0.250                  0.017      0.608
4909168     240282.59     79.96                             0.250                  0.017      0.233
4909576     259776.14     80.00    GD 5YR                   0.250                  0.017      0.483
4909610     304724.27     90.00                    6        0.250                  0.017      0.233
4909643     265707.66     95.00                             0.250                  0.017      1.233
4909710     379419.92     80.00                             0.250                  0.017      1.108
4909786        428000     80.00    GD 3YR                   0.250                  0.017      0.858
4909906     599587.08     40.68                             0.250                  0.017      1.608
4910036     270442.19     80.00                             0.250                  0.017      0.483
4910479        314900     90.00                    6        0.250                  0.017      0.983
4910599        430400     80.00                             0.250                  0.017      0.233
4910631     391670.66     80.00    GD 3YR                   0.250                  0.017      0.608
4910749     267780.31     80.00                             0.250                  0.017      0.733
4910755        300800     80.00                             0.250                  0.017      0.358
4910897     292235.58     90.00                    6        0.250                  0.017      0.233
4911139     288832.23     70.00                             0.250                  0.017      0.108
4911203     271554.28     89.70                   12        0.250                  0.017      0.233
4911287     479586.72     78.69                             0.250                  0.017      0.483
4911417     278971.14     80.00                             0.250                  0.017      0.733
4911808        326600     80.00                             0.250                  0.017      0.483
4911825     342590.01     90.00                             0.250                  0.017      0.233
4912022     751336.53     63.19    GD 3YR                   0.250                  0.017      0.358
4912356     319433.78     74.74                             0.250                  0.017      0.358
4912737     343710.99     80.00                             0.250                  0.017      0.608
4912769     246692.57     95.00                             0.250                  0.017      0.608
4913250     324706.19     66.74                             0.250                  0.017      0.233
4913261     254469.75     90.00                             0.250                  0.017      0.233
4913719     634382.82     76.05                             0.250                  0.017      0.000
4914142     549537.93     70.97                             0.250                  0.017      0.608
4914492      299741.7     60.85                             0.250                  0.017      0.483
4914502        347300     58.28                             0.250                  0.017      0.000
4914546     449602.97     65.03                             0.250                  0.017      0.358
4914716     286214.78     74.12                             0.250                  0.017      0.000
4914992     376065.23     79.99                             0.250                  0.017      0.608
4915126     374707.46     59.52    GD 5YR                   0.250                  0.017      0.983
4915186        299250     95.00                             0.250                  0.017      1.108
4915501     277760.64     79.77                             0.250                  0.017      0.483
4915650     447604.73     80.00                             0.250                  0.017      0.358
4915668     245367.76     94.99                             0.250                  0.017      1.233
4915709        268000     80.00                             0.250                  0.017      0.233
4915732     291760.64     79.57                             0.250                  0.017      0.733
4915897        256000     89.51                             0.250                  0.017      0.483
4916143     449621.95     74.26    GD 3YR                   0.250                  0.017      0.608
4916490        269600     79.88                             0.250                  0.017      0.608
4916644      478317.2     80.00                             0.250                  0.017      0.233
4916678        469000     79.99    GD 3YR                   0.250                  0.017      0.733
4916807     364058.63     89.97                             0.250                  0.017      0.858
4916895     354694.35     78.89                             0.250                  0.017      0.483
4917162     672141.82     74.92                             0.250                  0.017      0.233
4917300     379273.17     80.00                             0.250                  0.017      0.483
4917504     309726.49     72.94                             0.250                  0.017      0.358
4917508        408000     59.22                             0.250                  0.017      0.608
4917774     319324.83     80.00                             0.250                  0.017      0.483
4917786     415659.01     80.00                             0.250                  0.017      0.733
4917995     278427.16     89.99                             0.250                  0.017      0.858
4918204        336000     80.00                             0.250                  0.017      0.608
4918379        248000     80.00                             0.250                  0.017      0.000
4918394     326097.68     79.80                             0.250                  0.017      0.108
4918429     289118.61     80.00                             0.250                  0.017      0.858
4918710     279746.87     71.89                             0.250                  0.017      0.233
4918720        275000     67.99                             0.250                  0.017      0.108
4918874     599483.41     75.00                             0.250                  0.017      0.483
4918990      268768.4     71.93                             0.250                  0.017      0.483
4919151     268162.96     89.99                   12        0.250                  0.017      0.233
4920035     364670.03     78.49                             0.250                  0.017      0.233
4920412     333752.12     71.98                             0.250                  0.017      1.233
4920454     401212.65     79.99                             0.250                  0.017      0.608
4921378        472000     80.00                             0.250                  0.017      0.233
4921388     267769.25     80.00                             0.250                  0.017      0.483
4921822     367812.84     90.00                   33        0.250                  0.017      0.983
4922048     359697.55     54.14                             0.250                  0.017      0.608
4922615        265500     90.00                   33        0.250                  0.017      0.608
4922732        368000     80.00                             0.250                  0.017      0.608
4922946        275000     66.27                             0.250                  0.017      0.358
4923699        281600     80.00                             0.250                  0.017      0.233
4923701     309733.09     75.94                             0.250                  0.017      0.483
4923727        247200     80.00                             0.250                  0.017      0.233
4923860     290131.03     80.00                             0.250                  0.017      0.108
4924306     278965.43     80.00                             0.250                  0.017      0.608
4925008        250000     75.08                             0.250                  0.017      0.108
4925114     255774.13     80.00                             0.250                  0.017      0.358
4925464      273808.2     70.00                             0.250                  0.017      0.358
4926379     299754.09     80.00                             0.250                  0.017      0.733
4926537     583497.19     80.00                             0.250                  0.017      0.483
4927032     279764.76     73.30                             0.250                  0.017      0.608
4927854     395941.74     79.98                             0.250                  0.017      0.233
4927855     499638.11     70.37                             0.250                  0.017      1.358
4929124        283050     90.00                   33        0.250                  0.017      0.483
4929640     431609.46     80.00                             0.250                  0.017      0.233
4930037     589466.62     80.00                             0.250                  0.017      0.233
4932294        450000     79.65                             0.250                  0.017      0.358
</TABLE>


COUNT:                               557
WAC:                         6.654979613
WAM:                         358.4044657
WALTV:                       77.31797045



<PAGE>
                                   EXHIBIT F-3


<TABLE>

NASCOR
NMI / 1999-03  Exhibit F-3 (Part A)
30 YEAR FIXED RATE RELOCATION LOANS



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

4689099     SANTA BARBARA           CA        93101     PUD        800%       6.000     2508.75        360        46508
4838972     NEW HOPE                PA        18938     SFD        675%       6.000     1676.63        360        47027
4843540     FLOWER MOUND            TX        75028     SFD        825%       6.000     4591.75        360        46844
4843550     MOUNT AIRY              MD        21771     SFD        700%       6.000      2211.8        360        46753
4843952     SARATOGA                CA        95070     SFD        688%       6.000     6569.29        360        46905
4843971     MONARCH BEACH           CA        92629     SFD        688%       6.000     1685.03        360        46874
4844005     SHORT HILLS             NJ        07078     SFD        675%       6.000     2853.84        360        46905
4844716     DOWNINGTOWN             PA        19335     SFD        663%       6.000     1523.95        360        46874
4852625     SOUTH ORANGE            NJ        07079     SFD        650%       6.000     2098.47        360        47058
4864873     GRAYSON                 GA        30017     SFD        638%       6.000     1684.45        360        47058
4883923     LAKE FOREST             IL        60045     SFD        613%       5.858     3341.86        360        47088
4887128     DUBLIN                  OH        43017     SFD        650%       6.000     1858.28        360        47058
4900667     FREMONT                 CA        94536     SFD        700%       6.000     1543.51        360        46966
4900683     CHESTERFIELD            MO        63005     SFD        688%       6.000      2149.8        360        46935
4900729     TROY                    OH        45373     SFD        700%       6.000     1736.44        360        46935
4900755     REDMOND                 WA        98053     SFD        700%       6.000     1801.31        360        46905
4900777     NAPERVILLE              IL        60564     SFD        688%       6.000     1970.79        360        46997
4900859     MCCANDLESS              PA        15090     SFD        675%       6.000     2101.46        360        47027
4900877     SAN FRANCISCO           CA        94127     SFD        688%       6.000     1918.24        360        46997
4900938     TROY                    MI        48098     SFD        713%       6.000        3089        360        46905
4900973     WALNUT CREEK            CA        94598     SFD        700%       6.000     3546.07        360        46905
4901014     ARMONK                  NY        10504     SFD        688%       6.000     2299.26        360        46905
4901057     SCOTTSDALE              AZ        85254     SFD        675%       6.000        1855        360        46997
4901071     FOOTHILL RANCH          CA        92610     SFD        688%       6.000     2480.57        360        46966
4901101     ARLINGTON               VA        22017     SFD        663%       6.000     1716.04        360        46997
4901117     GRANITE BAY             CA        95746     SFD        700%       6.000     1995.91        360        46935
4902553     ATLANTA                 GA        30309     SFD        675%       6.000     2088.49        360        46966
4902642     MONKTON                 MD        21111     SFD        713%       6.000      1888.1        360        46966
4903102     DENVER                  CO        80210     SFD        688%       6.000     2364.95        360        46966
4903173     ROCKAWAT TOWNSHIP       NJ        07866     SFD        663%       6.000     1786.47        360        46966
4903189     GUILFORD                CT        06437     SFD        650%       6.000     2705.26        360        46997
4903360     OAKLAND                 CA        94618     SFD        638%       6.000      2320.8        360        47058
4932166     PLANO                   TX        75025     SFD        675%       6.000     1700.62        360        46966
4932181     GROSSE POINTE PARK      MI        48230     SFD        650%       6.000     1759.68        360        47027
4932192     DARIEN                  IL        60561     SFD        675%       6.000     1860.18        360        47027
4932201     ROCHESTER HILLS         MI        48309     SFD        688%       6.000     2039.11        360        46905
4932222     ANN ARBOR               MI        48103     LCO        675%       6.000     2788.98        360        47027
4932236     ASHBURN                 VA        20147     SFD        700%       6.000     1690.21        360        46966
4932300     FARMINGTON HILLS        MI        48331     SFD        663%       6.000     2161.69        360        47027
4932313     VALENCIA                CA        91355     SFD        663%       6.000     1815.29        360        46935
4932318     ROCHESTER HILLS         MI        48306     SFD        663%       6.000     1888.92        360        47058
4932326     BLOOMFIELD HILLS        MI        48301     SFD        675%       6.000     1653.93        360        47027
4932332     BROODFIELD              CT        06804     SFD        700%       6.000     1916.08        360        46935
4932342     GREAT FALLS             VA        22066     SFD        738%       6.000     2442.23        360        46935
4932374     ROCHESTER HILLS         MI        48306     SFD        650%       6.000     2217.93        360        47027
4932395     BRIGHTON                MI        48116     SFD        675%       6.000     1703.55        360        46966
4932411     HOLLIS HILLS            NY        11427     SFD        675%       6.000     2393.33        360        47058
4932425     ATLANTA                 GA        30306     LCO        688%       6.000     1996.41        360        46966
4932438     ROCHESTER               MI        48307     SFD        688%       6.000     1773.71        360        46966
4932447     FRANKLIN                TN        37067     SFD        688%       6.000     1609.48        360        46997
4932463     SACHSE                  TX        75048     SFD        688%       6.000     2312.39        360        46966
4932470     HOLLY SPRINGS           NC        27540     SFD        725%       6.000     2056.77        360        46966
4932585     LAGUNA NIGUEL           CA        92607     SFD        650%       6.000     2806.39        360        47058
4932606     MILLSTONE               NJ        08510     SFD        700%       6.000     2139.62        360        47058
4932621     CARMEL                  IN        46033     SFD        650%       6.000     1614.94        360        47058
4932651     ROCHESTER               MI        48307     SFD        688%       6.000     1568.42        360        46935
4932654     SIMI VALLEY             CA        93065     SFD        650%       6.000     1896.21        360        47058
4932656     ELMHURST                IL        60126     SFD        663%       6.000     1627.36        360        46966
4932663     PLANO                   TX        75093     SFD        675%       6.000     3113.28        360        46935
4932670     WEST BLOOMFIELD         MI        48323     SFD        663%       6.000      1844.1        360        47027
4932683     BLOOMFIELD HILLS        MI        48304     SFD        663%       6.000     1728.84        360        46997
4932686     DAYTON                  OH        45414     SFD        675%       6.000     1913.37        360        46935
4932731     NAPERVILLE              IL        60565     SFD        638%       6.000     2339.52        360        47027
4932732     FARMINGTON HILLS        MI        48331     LCO        688%       6.000     2430.64        360        46935
4932753     NOVI                    MI        48375     SFD        725%       6.000      2717.8        360        46997
4932755     LEONARD                 MI        48367     SFD        688%       6.000     1642.33        360        46905
4932762     EL PASO                 TX        79922     SFD        638%       6.000     1852.27        360        47058
4932765     ROCHESTER HILLS         MI        48309     LCO        650%       6.000     3649.88        360        47027
4932768     SKILLMAN                NJ        08558     SFD        725%       6.000     2728.71        360        46997
4932774     PLANO                   TX        75093     PUD        688%       6.000     2522.61        360        46997
4932779     SPRINGIELD TOWNSHIP     MI        48350     LCO        663%       6.000     2219.64        360        46935
4932790     WEST BLOOMFIELD         MI        48323     SFD        675%       6.000     2495.49        360        46935
4932792     MANASSIS                VA        20111     SFD        625%       5.983      1539.3        360        47058
4932816     LITTLETON               CO        80211     SFD        688%       6.000     2364.95        360        47058
4932839     NOBLESVILLE             IN        46060     SFD        675%       6.000      2270.1        360        46905
4932848     CHESTER                 NJ        07930     SFD        713%       6.000     3334.91        360        47027
4932855     NEEDHAM                 MA        02194     SFD        700%       6.000     1570.12        360        46966
4932856     AURORA                  IL        60504     SFD        700%       6.000     1729.79        360        46905
4932858     CASTRO VALLEY           CA        94552     SFD        663%       6.000     1853.71        360        46935
4932870     GROSSE POINTE PARK      MI        48230     SFD        663%       6.000     1690.43        360        46935
4932891     GROSSE POINTE PARK      MI        48230     SFD        688%       6.000     1872.25        360        46905
4932899     FAIRFIELD               CT        06432     SFD        700%       6.000     4257.94        360        47058
4932902     HUNTINGTON BEACH        CA        92648     SFD        625%       5.983     3077.98        360        46935
4932909     CLARKSTON               MI        48346     SFD        675%       6.000     2075.52        360        46935
4932928     RANCHO SANTA MARGARITA  CA        92688     SFD        713%       6.000     2076.74        360        46905
4932963     ORION TWP               MI        48360     SFD        675%       6.000      1657.5        360        46935
4932964     SOUTHLAKE               TX        76092     SFD        638%       6.000     3079.42        360        46966
4932967     BRENTWOOD               TN        37024     SFD        688%       6.000     2233.56        360        46935
4932972     OAKLAND                 MI        48306     SFD        663%       6.000     1984.97        360        46966
4932977     NORTH ANDOVER           MA        01845     SFD        675%       6.000     2438.09        360        46935
4934019     LIVINGSTON              NJ        07039     SFD        700%       6.000     1676.57        360        47027
4934027     CHESTER SPRINGS         PA        19425     SFD        650%       6.000     1896.21        360        46997
4934047     BEVERLY HILLS           CA        90209     SFD        663%       6.000     1988.17        360        46997
4934085     SYOSSET                 NY        11791     SFD        713%       6.000     1951.09        360        46997
4934108     ROCHESTER               MI        48307     SFD        663%       6.000     1849.86        360        47027
4934128     OAKLAND                 MI        48363     SFD        663%       6.000     2401.17        360        47027
4934133     BIRMINGHAM              MI        48009     SFD        688%       6.000     3216.33        360        46966
4934139     MARIETTA                GA        30067     SFD        675%       6.000     3891.59        360        46966
4934150     WEST BLOOMFIELD         MI        48323     SFD        675%       6.000     2593.75        360        46966
4934168     LAKE FOREST             CA        92630     SFD        675%       6.000     1546.26        360        47027
4934172     PLEASANTON              CA        94566     SFD        688%       6.000     2394.51        360        46935
4934175     SHELBY TOWNSHIP         MI        48316     SFD        675%       6.000     1515.13        360        46905
4934180     MC LEAN                 VA        22102     SFD        688%       6.000     2299.26        360        46997
4934187     FOUNTAIN HILLS          AZ        85268     SFD        675%       6.000     2018.12        360        46905
4934190     HONALULU                HI        96821     SFD        713%       6.000     3503.34        360        46997
4934192     BLOOMFIELD              MI        48304     SFD        688%       6.000     3041.59        360        46905
4934201     SPRINGFIELD TWP         MI        48350     SFD        663%       6.000     1812.73        360        46997
4934207     ROSWELL                 GA        30076     SFD        688%       6.000     1861.74        360        46905
4934209     DAVISBURG               MI        48350     SFD        675%       6.000     1504.75        360        46997
4934214     BUELLTON                CA        93427     SFD        675%       6.000     1671.02        360        46966
4934228     PLEASANTON              CA        94566     SFD        688%       6.000     2553.82        360        46966
4934229     MILFORD                 MI        48380     SFD        700%       6.000     2649.24        360        46905
4934231     CAREFREE                AZ        85377     SFD        650%       6.000     1580.18        360        46997
4934234     AMBLER                  PA        19002     SFD        650%       6.000     2528.28        360        47058
4934240     CREVE COEUR             MO        63141     SFD        700%       6.000     1736.44        360        46966
4934244     OAKLAND TONSHIP         MI        48306     SFD        663%       6.000     2175.46        360        46997
4934247     SHELBY TOWNSHIP         MI        48316     SFD        675%       6.000     1848.51        360        46935
4934248     WATERFORD               MI        48327     SFD        675%       6.000     2845.73        360        46997
4934259     FRANKLIN                MA        02038     SFD        663%       6.000     1767.26        360        46997
4934261     RIVERSIDE               CA        92506     SFD        713%       6.000     2182.18        360        46966
4934262     MILFORD                 MI        48381     SFD        725%       6.000     1600.73        360        46966
4934263     DANVILLE                CA        94526     SFD        688%       6.000     2693.41        360        46997
4934271     MARIETTA                GA        30067     SFD        675%       6.000     2542.51        360        46966
4934272     CLARKSTON               MI        48348     SFD        663%       6.000     1728.84        360        46997
4934273     LAKE ST LOUIS           MO        63367     SFD        663%       6.000     1690.43        360        46966
4934280     AUSTIN                  TX        78750     SFD        688%       6.000     2099.55        360        47027
4934282     BLOOMFIELD HILLS        MI        48301     SFD        688%       6.000     1642.33        360        46966
4934294     NORTHVILLE              MI        48167     SFD        650%       6.000     2771.31        360        47058
4934296     ALPHARETTA              GA        30005     SFD        663%       6.000     1728.84        360        46966
4934304     GLEN ALLEN              VA        23060     SFD        675%       6.000     1655.23        360        46966
4934307     GROSSE POINTE PARK      MI        48230     SFD        675%       6.000     1686.36        360        46966
4934309     MOORESTOWN              NJ        08057     SFD        663%       6.000     1504.74        360        46997
4934316     MATHEWS                 NC        28104     SFD        713%       6.000     1751.67        360        46966
4934320     WARREN                  OH        44484     SFD        675%       6.000      1945.8        360        46966
4934322     ROCHESTER               MI        48307     SFD        663%       6.000     1984.33        360        46997
4934335     LAREDO                  TX        78045     SFD        663%       6.000     1833.85        360        46966
4934481     MILLBURN                NJ        07078     SFD        713%       6.000     3099.11        360        46966
4934492     BLOOMFIELD TOWNSHIP     MI        48302     SFD        675%       6.000      1621.5        360        46997
4934497     NAPERVILLE              IL        60565     SFD        700%       6.000     2767.66        360        46966
4934505     PLEASANTON              CA        94588     SFD        675%       6.000     3113.28        360        46935
4934508     BLOOMFIELD HILLS        MI        48302     SFD        650%       6.000     3160.35        360        47027
4934511     WELLESLEY               MA        02481     SFD        675%       6.000     4618.67        360        47027
4934515     SEWICKLEY               PA        15143     SFD        663%       6.000     1885.08        360        46966
4934517     MOORESVILLE             NC        28115     SFD        688%       6.000     1825.28        360        47027
4934522     ROCHESTER HILLS         MI        48306     SFD        675%       6.000      2270.1        360        46935
4934523     LIVERMORE               CA        94550     SFD        675%       6.000     2257.13        360        47027
4934530     YORKTOWN HEIGHTS        NY        10598     SFD        713%       6.000     3832.12        360        47027
4934531     MISSION VIEJO           CA        92692     SFD        713%       6.000     2472.55        360        47027
4934536     CLARKSTON               MI        48348     LCO        675%       6.000     2438.73        360        47027
4934537     SAN DIEGO               CA        92129     SFD        738%       6.000     2579.68        360        46966
4934544     ALIQUIPPA               PA        15001     SFD        700%       6.000     1935.15        240        43405
4934549     NOVI                    MI        48377     SFD        688%       6.000     1726.41        360        46935
4934551     CLARKSTON               MI        48348     LCO        663%       6.000     1716.04        360        46966
4934555     NOVI                    MI        48374     SFD        675%       6.000     1893.91        360        46966
4934560     WASHINGTON              MI        48094     SFD        675%       6.000     2983.56        360        47027
4934571     GLEN MILLS              PA        19342     SFD        663%       6.000     1920.94        360        47058
4934581     AVON LAKE               OH        44012     SFD        675%       6.000     2107.95        360        47027

</TABLE>



TABLE (CONTINUED)

<TABLE>
<CAPTION>
  (i)        (ix)              (x)      (xi)        (xii)       (xiii)      (xiv)       (xv)       (xvi)
- -------     -------------    -------   -------    ----------   -------     --------    -------    ---------
            CUT-OFF
MORTGAGE    DATE                                   MORTGAGE                 T.O.P.     MASTER     FIXED
LOAN        PRINCIPAL                              INSURANCE    SERVICE     MORTGAGE   SERVICE    RETAINED
NUMBER      BALANCE          LTV       SUBSIDY     CODE         FEE         LOAN       FEE        YIELD
- -------     ------------   -------     -------     ---------    -------     --------   -------    ---------
<S>          <C>            <C>        <C>           <C>         <C>         <C>        <C>       <C>
4689099       337009.1      90.00                                0.250                  0.017      1.733
4838972      257503.34      79.99                                0.250                  0.017      0.483
4843540      607594.27      74.99                                0.250                  0.017      1.983
4843550      329072.91      89.99                    11          0.250                  0.017      0.733
4843952      994017.08      50.89                                0.250                  0.017      0.608
4843971      254741.05      90.00                    11          0.250                  0.017      0.608
4844005      437302.94      73.27                                0.250                  0.017      0.483
4844716      236287.25      64.67                                0.250                  0.017      0.358
4852625       331398.1      80.00                                0.250                  0.017      0.233
4864873      269498.53      74.18                                0.250                  0.017      0.108
4883923      549465.43      68.75                                0.250                  0.017      0.000
4887128      293463.99      69.34                                0.250                  0.017      0.233
4900667      231037.96      80.00                                0.500                  0.017      0.483
4900683      325576.61      70.00                                0.500                  0.017      0.358
4900729      259191.61      89.69                                0.500                  0.017      0.483
4900755         269169      90.25                                0.500                  0.017      0.483
4900777      298983.14      75.00                                0.500                  0.017      0.358
4900859       323158.4      78.07                                0.500                  0.017      0.233
4900877      291010.25      78.49                                0.500                  0.017      0.358
4900938      455887.24      75.29                                0.500                  0.017      0.608
4900973      529887.63      73.52                                0.500                  0.017      0.483
4901014      347904.42      55.38                                0.500                  0.017      0.358
4901057      284986.53      75.26                                0.500                  0.017      0.233
4901071      375995.54      80.00                                0.500                  0.017      0.358
4901101      267046.01      89.93                                0.500                  0.017      0.108
4901117      298502.85      77.12                                0.500                  0.017      0.483
4902553      320598.12      50.47                                0.250                  0.017      0.483
4902642         279116      95.00                    11          0.250                  0.017      0.858
4903102      355842.12      73.77                                0.250                  0.017      0.608
4903173      277755.54      90.00                                0.250                  0.017      0.358
4903189      426439.67      76.43                                0.250                  0.017      0.233
4903360      371309.07      80.00                                0.250                  0.017      0.108
4932166       261058.5      95.00                     1          0.250                  0.017      0.483
4932181      277640.87      80.00                                0.250                  0.017      0.233
4932192      286055.03      80.00                                0.250                  0.017      0.483
4932201       308542.9      80.00                                0.250                  0.017      0.608
4932222      428883.05      77.90                                0.250                  0.017      0.483
4932236      252996.52      91.99                    33          0.250                  0.017      0.733
4932300      336701.49      80.00                                0.250                  0.017      0.358
4932313      281883.12      90.00                     1          0.250                  0.017      0.358
4932318      294478.02      77.84                                0.250                  0.017      0.358
4932326      254337.63      87.33                    33          0.250                  0.017      0.483
4932332      286562.69      80.00                                0.250                  0.017      0.733
4932342      351960.62      80.00                                0.250                  0.017      1.108
4932374      349943.17      90.00                    33          0.250                  0.017      0.233
4932395       260300.3      79.99                                0.250                  0.017      0.483
4932411      368362.81      90.00                     1          0.250                  0.017      0.483
4932425       302608.7      79.99                                0.250                  0.017      0.608
4932438      268852.76      79.73                                0.250                  0.017      0.608
4932447      244169.57      66.22                                0.250                  0.017      0.608
4932463      350504.34      80.00                                0.250                  0.017      0.608
4932470      300309.66      79.99                                0.250                  0.017      0.983
4932585      443195.05      80.00                                0.250                  0.017      0.233
4932606      321071.22      80.00                                0.250                  0.017      0.733
4932621      255036.79      86.46                    33          0.250                  0.017      0.233
4932651      237529.14      79.58                                0.250                  0.017      0.608
4932654      299456.11      43.80                                0.250                  0.017      0.233
4932656      251910.22      90.00                    33          0.250                  0.017      0.358
4932663       477485.2      77.67                                0.250                  0.017      0.483
4932670      286425.74      80.00                                0.250                  0.017      0.358
4932683      269039.22      61.36                                0.250                  0.017      0.358
4932686      293249.97      69.82                                0.250                  0.017      0.483
4932731      373952.46      55.56                                0.250                  0.017      0.108
4932732      368107.99      66.07                                0.250                  0.017      0.608
4932753      397145.48      80.00                                0.250                  0.017      0.983
4932755      248440.75      77.64                                0.250                  0.017      0.608
4932762      296348.56      90.00                     1          0.250                  0.017      0.108
4932765      575875.42      61.21                                0.250                  0.017      0.233
4932768      398740.47      68.09                                0.250                  0.017      0.983
4932774      382698.42      80.00                                0.250                  0.017      0.608
4932779      344675.34      95.00                    33          0.250                  0.017      0.358
4932790      382734.22      95.00                     1          0.250                  0.017      0.483
4932792      249524.33      79.99                                0.250                  0.017      0.000
4932816      359393.37      67.37                                0.250                  0.017      0.608
4932839      347854.62      79.55                                0.250                  0.017      0.483
4932848      493805.39      79.85                                0.250                  0.017      0.858
4932855      234717.88      78.67                                0.250                  0.017      0.733
4932856      253396.81      74.29                                0.250                  0.017      0.733
4932858      287946.11      75.00                                0.250                  0.017      0.358
4932870      262582.98      80.00                                0.250                  0.017      0.358
4932891      282070.55      73.08                                0.250                  0.017      0.608
4932899      638947.72      80.00                                0.250                  0.017      0.733
4932902      497016.69      79.99                                0.250                  0.017      0.000
4932909      318323.45      80.00                                0.250                  0.017      0.483
4932928      306493.42      90.00                    33          0.250                  0.017      0.858
4932963      254211.11      95.00                    33          0.250                  0.017      0.483
4932964      491289.68      80.00                                0.250                  0.017      0.108
4932967       338261.4      73.91                                0.250                  0.017      0.608
4932972      308617.26      79.49                                0.250                  0.017      0.358
4932977      373930.58      80.00                                0.250                  0.017      0.483
4934019      251342.38      80.00                                0.250                  0.017      0.733
4934027      298906.31      72.29                                0.250                  0.017      0.233
4934047       309395.1      90.00                    33          0.250                  0.017      0.358
4934085      286647.48      80.00                                0.250                  0.017      0.858
4934108      288029.98      79.99                                0.250                  0.017      0.358
4934128      374001.94      66.96                                0.250                  0.017      0.358
4934133      487519.64      80.00                                0.250                  0.017      0.608
4934139      597387.82      80.00                                0.250                  0.017      0.483
4934150      398158.95      80.00                                0.250                  0.017      0.483
4934168      237780.75      80.00                                0.250                  0.017      0.483
4934172      362636.11      90.00                    33          0.250                  0.017      0.608
4934175      232168.12      80.00                                0.250                  0.017      0.483
4934180      348813.65      41.18                                0.250                  0.017      0.608
4934187      309181.26      79.99                                0.250                  0.017      0.483
4934190      518321.77      64.60                                0.250                  0.017      0.858
4934192      460229.89      72.34                                0.250                  0.017      0.608
4934201      282092.57      79.99                                0.250                  0.017      0.358
4934207      281704.42      90.00                    33          0.250                  0.017      0.608
4934209      231194.24      89.23                    33          0.250                  0.017      0.483
4934214      256513.33      95.00                    33          0.250                  0.017      0.483
4934228      386854.25      89.99                     1          0.250                  0.017      0.608
4934229      391513.66      73.99                                0.250                  0.017      0.733
4934231      249088.57      48.08                                0.250                  0.017      0.233
4934234      399274.82      79.76                                0.250                  0.017      0.233
4934240      259917.74      84.19                    33          0.250                  0.017      0.733
4934244         338541      90.00                     1          0.250                  0.017      0.358
4934247      283506.84      74.03                                0.250                  0.017      0.483
4934248      435538.99      90.00                    33          0.250                  0.017      0.483
4934259      274981.06      80.00                                0.250                  0.017      0.358
4934261      322589.41      90.00                    33          0.250                  0.017      0.858
4934262      233723.61      95.00                    33          0.250                  0.017      0.983
4934263       408408.6      80.00                                0.250                  0.017      0.608
4934271      390293.35      80.00                                0.250                  0.017      0.483
4934272      269039.22      94.74                    33          0.250                  0.017      0.358
4934273      262822.41      80.00                                0.250                  0.017      0.358
4934280      318789.85      80.00                                0.250                  0.017      0.608
4934282      248937.71      41.95                                0.250                  0.017      0.608
4934294      437156.46      80.00                                0.250                  0.017      0.233
4934296       268795.7      76.06                                0.250                  0.017      0.358
4934304      254088.14      80.00                                0.250                  0.017      0.483
4934307      258868.03      80.00                                0.250                  0.017      0.483
4934309      234163.73      67.92                                0.250                  0.017      0.358
4934316      258644.41      76.58                                0.250                  0.017      0.858
4934320       298693.9      68.97                                0.250                  0.017      0.483
4934322      308797.22      79.98                                0.250                  0.017      0.358
4934335      285122.54      80.00                                0.250                  0.017      0.358
4934481      458138.74      61.33                                0.250                  0.017      0.858
4934492      249131.71      30.40                                0.250                  0.017      0.483
4934497      414275.03      80.00                                0.250                  0.017      0.733
4934505       477485.2      80.00                                0.250                  0.017      0.483
4934508      498636.59      60.61                                0.250                  0.017      0.233
4934511      710250.31      58.31                                0.250                  0.017      0.483
4934515      293086.85      80.00                                0.250                  0.017      0.358
4934517      277145.69      94.99                                0.250                  0.017      0.608
4934522      348166.28      52.24                                0.250                  0.017      0.483
4934523      347096.04      80.00                                0.250                  0.017      0.483
4934530      567427.27      80.00                                0.250                  0.017      0.858
4934531       366114.3      89.08                    33          0.250                  0.017      0.858
4934536      375023.34      80.00                                0.250                  0.017      0.483
4934537      371856.41      90.00                    33          0.250                  0.017      1.108
4934544       248638.9      80.00                                0.250                  0.017      0.733
4934549      261456.18      93.93                     1          0.250                  0.017      0.608
4934551       266804.6      80.00                                0.250                  0.017      0.358
4934555      290728.73      80.00                                0.250                  0.017      0.483
4934560      458805.12      76.03                                0.250                  0.017      0.483
4934571      299469.16      80.00                                0.250                  0.017      0.358
4934581       324155.8      77.38                                0.250                  0.017      0.483

</TABLE>


COUNT:                              157
WAC:                        6.807857789
WAM:                        354.7446001
WALTV:                      77.17962382
<PAGE>

NASCOR
NMI / 1999-03 Exhibit F-3 (Part B)
30 YEAR FIXED RATE  RELOCATION  LOANS


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

MORTGAGE                                             NMI
LOAN                                                 LOAN
NUMBER      SERVICER                                 SELLER
- --------    ------------------------------           ---------------------------
4689099     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4838972     STAR BANK                                STAR BANK
4843540     CITICORP MORTGAGE, INC.                  CITICORP MORTGAGE, INC.
4843550     CITICORP MORTGAGE, INC.                  CITICORP MORTGAGE, INC.
4843952     CITICORP MORTGAGE, INC.                  CITICORP MORTGAGE, INC.
4843971     CITICORP MORTGAGE, INC.                  CITICORP MORTGAGE, INC.
4844005     CITICORP MORTGAGE, INC.                  CITICORP MORTGAGE, INC.
4844716     CITICORP MORTGAGE, INC.                  CITICORP MORTGAGE, INC.
4852625     STAR BANK                                STAR BANK
4864873     STAR BANK                                STAR BANK
4883923     HUNTINGTON MORTGAGE COMPANY              HUNTINGTON MORTGAGE COMPANY
4887128     HUNTINGTON MORTGAGE COMPANY              HUNTINGTON MORTGAGE COMPANY
4900667     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4900683     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4900729     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4900755     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4900777     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4900859     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4900877     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4900938     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4900973     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4901014     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4901057     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4901071     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4901101     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4901117     BANK OF AMERICA, NT & SA                 BANK OF AMERICA, NT & SA
4902553     CITICORP MORTGAGE, INC.                  CITICORP MORTGAGE, INC.
4902642     CITICORP MORTGAGE, INC.                  CITICORP MORTGAGE, INC.
4903102     CITICORP MORTGAGE, INC.                  CITICORP MORTGAGE, INC.
4903173     CITICORP MORTGAGE, INC.                  CITICORP MORTGAGE, INC.
4903189     CITICORP MORTGAGE, INC.                  CITICORP MORTGAGE, INC.
4903360     HUNTINGTON MORTGAGE COMPANY              HUNTINGTON MORTGAGE COMPANY
4932166     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932181     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932192     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932201     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932222     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932236     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932300     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932313     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932318     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932326     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932332     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932342     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932374     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932395     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932411     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932425     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932438     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932447     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932463     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932470     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932585     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932606     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932621     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932651     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932654     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932656     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932663     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932670     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932683     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932686     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932731     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932732     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932753     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932755     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932762     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932765     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932768     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932774     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932779     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932790     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932792     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932816     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932839     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932848     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932855     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932856     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932858     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932870     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932891     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932899     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932902     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932909     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932928     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932963     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932964     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932967     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932972     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4932977     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934019     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934027     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934047     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934085     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934108     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934128     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934133     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934139     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934150     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934168     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934172     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934175     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934180     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934187     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934190     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934192     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934201     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934207     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934209     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934214     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934228     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934229     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934231     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934234     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934240     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934244     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934247     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934248     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934259     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934261     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934262     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934263     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934271     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934272     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934273     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934280     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934282     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934294     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934296     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934304     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934307     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934309     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934316     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934320     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934322     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934335     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934481     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934492     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934497     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934505     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934508     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934511     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934515     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934517     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934522     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934523     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934530     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934531     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934536     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934537     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934544     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934549     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934551     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934555     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934560     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934571     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP
4934581     GMAC MORTGAGE CORP                       GMAC MORTGAGE CORP

COUNT:                                           157
WAC:                                     6.807857789
WAM:                                     354.7446001
WALTV:                                   77.17962382



<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 1999-3

            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 1999-3, 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 January 28, 1999 (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 [ ]. (7)

          (3) That the  Purchaser is not a  "disqualified  organization"  within
     the meaning of Section  860E(e)(5),of the Internal Revenue Code of 1986, as
     amended (the  "Code"),  or an ERISA  Prohibited  Holder,  and will not be a
     "disqualified  organization" or an ERISA Prohibited  Holder, as of [date of
     transfer], and that the Purchaser is not acquiring Norwest Asset Securities
     Corporation Mortgage  Pass-Through  Certificates,  Series 1999-3, 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.

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


                                       [NAME OF PURCHASER]


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

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

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



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

COUNTY OF   ___________________________

STATE OF    ___________________________

My commission expires the __ day of __________, 19__.


<PAGE>

                                    EXHIBIT I

              [Letter from Transferor of Class A-R Certificate]

                                     [Date]

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

Re:   Norwest Asset Securities Corporation,
      Series 1999-3, Class A-R

Ladies and Gentlemen:

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



                                       Very truly yours,



                                       [Transferor]



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


<PAGE>


                                    EXHIBIT J

                      NORWEST ASSET SECURITIES CORPORATION

                       MORTGAGE PASS-THROUGH CERTIFICATES
                                  SERIES 1999-3
                   CLASS [A-PO][B-4][B-5][B-6] CERTIFICATES

                               TRANSFEREE'S LETTER

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

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

Norwest Asset Securities Corporation
7485 New Horizon Way
Frederick, Maryland 21703

            The undersigned (the "Purchaser") proposes to purchase Norwest Asset
Securities Corporation Mortgage Pass-Through Certificates,  Series 1999-3, 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  January  28,  1999  (the  "Pooling  and
Servicing Agreement") among Norwest Asset Securities Corporation, as seller (the
"Seller"), Norwest Bank Minnesota, National Association, as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"), of
Norwest Asset Securities Corporation Mortgage Pass-Through Certificates,  Series
1999-3.

            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)  Re:__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.

            (d)___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.

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


                                       [PURCHASER]


                                       By:
                                          --------------------------------


                                       Its:
                                           -------------------------------


<PAGE>


                                    EXHIBIT K

                      NORWEST ASSET SECURITIES CORPORATION

                       MORTGAGE PASS-THROUGH CERTIFICATES
                                  SERIES 1999-3
                      CLASS [B-1] [B-2] [B-3] CERTIFICATES

                               TRANSFEREE'S LETTER

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

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

Norwest Asset Securities Corporation
7485 New Horizon Way
Frederick, Maryland 21703

            The undersigned (the "Purchaser") proposes to purchase Norwest Asset
Securities Corporation Mortgage Pass-Through Certificates,  Series 1999-3, 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  January  28,  1999  (the  "Pooling  and
Servicing Agreement") among Norwest Asset Securities Corporation, as seller (the
"Seller"), Norwest Bank Minnesota, National Association, as master servicer (the
"Master  Servicer") and First Union National Bank, as trustee (the "Trustee") of
Norwest Asset Securities Corporation Mortgage Pass-Through Certificates,  Series
1999-3.

            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

             The Huntington Mortgage Company Servicing Agreement

                GMAC Mortgage Corporation Servicing Agreement

                 Bank of America NT & SA Servicing Agreement

                 Citicorp Mortgage, Inc. Servicing Agreement

                          Star Bank Servicing Agreement



<PAGE>


                                    EXHIBIT M

                      [FORM OF SPECIAL SERVICING AGREEMENT]

               SPECIAL SERVICING AND COLLATERAL FUND AGREEMENT

            This  SPECIAL   SERVICING  AND   COLLATERAL   FUND   AGREEMENT  (the
"Agreement")  is made and entered into as of , between  Norwest Bank  Minnesota,
National Association (the "Company" and "Norwest Bank") and (the "Purchaser").

                              PRELIMINARY STATEMENT

__________________  is the  holder  of the  entire  interest  in  Norwest  Asset
Securities Corporation Mortgage Pass-Through Certificates,  Series 1999-3, Class
____ (the "Class B Certificates"). The Class B Certificates were issued pursuant
to a Pooling and Servicing  Agreement dated as of January 28, 1999 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
D-1 by Duff & Phelps Credit Rating Co.  ("DCR") or (vi) demand and time deposits
in,  certificates  of deposit of, any  depository  institution  or trust company
(which may be an affiliate of the  Company)  incorporated  under the laws of the
United  States of America or any state  thereof and subject to  supervision  and
examination by federal and/or state banking authorities,  so long as at the time
of such investment  either (x) the long-term debt obligations of such depository
institution or trust company have a rating of at least AA by DCR or S&P, (y) the
certificate of deposit or other unsecured  short-term  debt  obligations of such
depository  institution or trust company have a rating of at least D-1 by DCR or
A-1 by S&P or (z) the  depository  institution  or trust  company is one that is
acceptable  to either DCR or S&P and,  for each of the  preceding  clauses  (i),
(iv), (v) and (vi), the maturity  thereof shall be not later than the earlier to
occur of (A) 30 days from the date of the  related  investment  and (B) the next
succeeding  Distribution  Date as defined in the related  Pooling and  Servicing
Agreement.

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

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

            Election to Delay  Foreclosure:  Any election by the  Purchaser to
delay  the  Commencement  of  Foreclosure,  made in  accordance  with  Section
2.02(b).

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

            Monthly  Advances:  Principal and interest  advances and servicing
advances including costs and expenses of foreclosure.

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

            Section 1.02      Definitions Incorporated by Reference

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


                                   ARTICLE II

                          SPECIAL SERVICING PROCEDURES

            Section 2.01      Reports and Notices

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

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

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

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

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

            Section 2.02      Purchaser's   Election   to  Delay   Foreclosure
Proceedings

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

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

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

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

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

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

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

            Section 2.03      Purchaser's  Election  to  Commence  Foreclosure
Proceedings

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

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

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

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

            Section 2.04      Termination

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

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


                                   ARTICLE III

                       COLLATERAL FUND; SECURITY INTEREST

            Section 3.01      Collateral Fund

            Upon receipt from the Purchaser of the initial amount required to be
deposited  in the  Collateral  Fund  pursuant to Article  II, the Company  shall
establish and maintain with Bankers Trust Company as a segregated account on its
books and records an account (the  "Collateral  Fund"),  entitled  "Norwest Bank
Minnesota,  National  Association,  as  Master  Servicer,  for  the  benefit  of
registered holders of Norwest Asset Securities Corporation Mortgage Pass-Through
Certificates,  Series 1999-3. 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.

            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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