WFS REPUBLIC INC
8-K15D5, 1997-11-06
ASSET-BACKED SECURITIES
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                    FORM 8-K

                             CURRENT REPORT PURSUANT
                          TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

         Date of report (Date earliest event reported): August 25, 1997

- --------------------------------------------------------------------------------
                              WFS (REPUBLIC) INC,+*

             (Exact Name of Registrant as Specified in Its Charter)

Federally Charter                                           91-1539486
- --------------------------------------------------------------------------------
(State or Other Jurisdiction                   (IRS Employer Identification No.)
of Incorporation)

6320 Canoga Avenue,                  Woodland Hills, California     91367
- --------------------------------------------------------------------------------
(Address of Principal Executive Offices)                         (Zip Code)

                                 (818) 704-8822
- --------------------------------------------------------------------------------
              (Registrant's Telephone Number, Including Area Code)

                                 Not Applicable
                 -----------------------------------------------
                 (REPUBLIC FEDERAL SAVINGS AND LOAN ASSOCIATION)

+  This Form 8-K is being filed by WFS (Republic) Inc. a Nevada Corporation, as
successor in interest to Republic Federal Savings and Loan Association. The
charter of Republic Federal Savings and Loan Association was canceled on or
about November 18, 1992 upon the action of the Office of Thrift Supervision.  
*This Form 8-K is being filed by WFS (Republic) Inc., a Nevada Corporation, in
its capacity as Seller and Servicer of each of the grantor trusts described in
Item 2 below. This constitutes a joint filing for all of the grantor trusts.
<PAGE>   2
ITEM 5. Other Events

        On February 26, 1987, Republic Federal Savings and Loan Association, a
federally chartered savings and loan association, ("Republic") as Seller and
Servicer, sold mortgage pass through certificates (the "Mortgage Pass-Through
Certificates"). Such Mortgage Pass-Through Certificates were comprised of Class
A Certificates and Class B Certificates and are hereinafter designated as the
"Series 1987-1 Certificates". The Class A Certificates offered evidenced
fractional undivided interests in a pool of fixed-rate, conventional,
fully-amortizing, one-to four unit single family loans (the "1987-1 Mortgage
Loans") sold and serviced by Republic. The Class A Certificates were divided
into subclasses, Class A-1 and Class A-2. Specific information relating to the
1987-1 Mortgage Loans, as well as other information relating to the sale and
servicing of the 1987-1 Mortgage Loans, is set forth in the Pooling and
Servicing Agreement, dated as of February 1, 1987, (the "Series 1987-1
Agreement"). The Series 1987-1 Agreement was included as an exhibit to
Registrant's Form 8-K filed with the Commission on January 25, 1988.

        On December 23, 1987, Republic, as Seller and Servicer, sold adjustable
rate mortgage pass-through certificates (the "Adjustable Rate Mortgage
Pass-Through Certificates"). The Adjustable Rate Mortgage Pass-Through
Certificates consisted of the Series 1987-2 Adjustable Rate Mortgage
Pass-through Certificates (the "Series 1987-2 Certificates) Class A and Class B
and the Series 1987-3 Adjustable Rate Mortgage Pass-Through Certificates (the
"Series 1987-3 Certificates") Class A and Class B. The Class A Certificates for
the Series 1987-2 Certificates and Series 1987-3 Certificates offered evidenced
fractional undivided interest in separate pools of adjustable-rate,
conventional, fully-amortizing, one-to four-unit single family loans (the
"1987-2 Mortgage Loans" and the "1987-3 Mortgage Loans", respectively) sold and
serviced by Republic. Specific information relating to the 1987-2 Mortgage Loans
and 1987-3 Mortgage Loans, as well as other information relating to the sale and
servicing for the 1987-2 Mortgage Loans and 1987-3 Mortgage Loans, is set forth
in the Pooling and Servicing Agreement for the Series 1987-2 Certificates and
the 1987-3 Certificates, dated as of December 1, 1987 (the "Series 1987-2
Agreement" and the "Series 1987-3 Agreement", respectively). The Series 1987-2
Agreement and the Series 1987-3 Agreement were included as exhibits to
Registrant's Form 8-K dated December 23, 1987 and filed with Commission.

        On May 26, 1988, Republic, as Seller and Servicer, sold adjustable rate
mortgage pass through certificates (the "Adjustable Rate Mortgage Pass-Through
Certificates"). The adjustable rate Mortgage Pass-Through Certificates consisted
of the Series 1988-1 Adjustable Rate Mortgage Pass-Through Certificates (the
"Series 1988-1 Certificates") Class A and Class B. The Class A Certificates for
the Series 1988-1 Certificates offered evidenced fractional undivided interests
in a pool of convertible, adjustable-rate, conventional, fully-amortizing,
one-to four-unit single family loans (the "1988-1 Mortgage Loans") sold and
serviced by Republic. Specific information relating to the 1988-1 Mortgage
Loans, as well as other information relating to the sale and servicing of the
Mortgage Loans, is set forth in the pooling and Servicing Agreement for the
Series 1988-1 Certificates dated as of May 1, 1988, (the "Series 1988-1
Agreement"). The Series 1988-1 Agreement was included as an exhibit to
Registrant's Form 8-K dated May 26, 1988 and filed with the Commission.

                                       2

<PAGE>   3
        On July 28, 1988, Republic, as Seller and Servicer, sold mortgage
pass-through certificates (the "Mortgage Pass-Through Certificates"). The
Mortgage Pass-Through Certificates consisted of the Series 1988-2 Mortgagee
Pass-Through Certificates (the "Series 1988-2 Certificates") Class A and Class
B. The Class A Certificates for the Series 1988-2 Certificates offered evidence
fractional undivided interests in a pool of conventional, 15-year, fully
amortizing, one-to four-unit single family loans (the "1988-2 Mortgage Loans")
sold and serviced by Republic. Specific information relating to the 1988-2
Mortgage Loans, as well as other information relating to the sale and servicing
of the Mortgage Loans is set forth in the Pooling and Servicing Agreement for
the Series 1988-2 Certificates dated as of July 1, 1988, (the "Series 1988-2
Agreement"). The Series 1988-2 Agreement was included as an exhibit to
Registrant's Form 8-K dated July 28, 1988, and filed with the Commission.

        On November 22, 1988, Republic, as Seller and Servicer, sold mortgage
pass-through certificates (the "Mortgage Pass-Through Certificates"). The
Mortgage Pass-Through Certificates consisted of the Series 1988-3 Mortgage Pass-
Through Certificates (the "Series 1988-3 Certificates") Class A and Class B. The
Class A Certificates for the Series 1988-3 Certificates offered evidence
fractional undivided interests in a pool of conventional, 30-year, fully
amortizing, one-to four-unit single family loans (the "1988-3 Mortgage Loans")
sold and serviced by Republic. Specific information relating to the 1988-3
Mortgage Loans, as well as other information relating to the sale and servicing
of the Mortgage Loans is set forth in the Pooling and Servicing Agreement of the
Series 1988-3 Certificates dated as of November 1, 1988, (the "Series 1988-3
Agreement"). The Series 1988-3 Agreement was included as an exhibit to
Registrant's Form 8-K dated November 22, 1988, and filed with the Commission.

        On June 22, 1989, Republic, as Seller and Servicer, sold mortgage
pass-through certificates (the "Mortgage Pass-Through Certificates"). The
Mortgage Pass-Through Certificates consisted of the Series 1989-1 Mortgage
Pass-Through Certificates (the "Series 1989-1 Certificates") Class A and Class
B. The Class A Certificates for the Series 1989-1 Certificates offered evidence
fractional undivided interests in a pool of conventional, 30-year,
fully-amortizing, one-to four-unit single family loans (the "1989-1 Mortgage
Loans") sold and serviced by Republic. Specific information relating to the
1989-1 Mortgage Loans, as well as other information relating to the sale and
servicing of the Mortgage Loans is set forth in the Pooling and Servicing
Agreement for the Series 1989-1 Certificates dated as of June 1, 1989, (the
"Series 1989-1 Agreement;" collectively, the Series 1987-1 Agreement, Series
1987-2 Agreement, Series 1987-3 Agreement, Series 1988-1 Agreement, Series
1988-2 Agreement, Series 1988-3 Agreement, and the Series 1989-1 Agreement are
referred to herein as the "Agreements"). The Series 1989-1 Agreement was
included as an exhibit to Registrant's Form 8-K dated June 26, 1989, and filed
with the Commission.

        On July 27, 1989, Republic, as Seller and Servicer, sold REMIC
multi-class pass-through certificates (the "REMIC Pass-Through Certificates").
The REMIC Pass-Through Certificates in the aggregate, represent the entire
beneficial ownership interest in a trust (the "Subsidiary Trust Fund") composed
substantially of Mortgage Pass-Through Certificates (the "Subsidiary Class A
Certificates") evidencing as 94.00% undivided in a pool of conventional, fully
amortizing, 30 year, fixed rate, one-to four-unit Mortgage Loans sold and
serviced by


                                       3
<PAGE>   4
Republic. The ownership of the remaining undivided interest in the Mortgage
Loans held in the Subsidiary Trust Fund are evidenced by the Subsidiary Class B
Certificates, presently held by Republic. The rights of the Subsidiary Class B
Certificateholders to receive distribution with respect to the Mortgage Loans
are subordinated to the rights of the Subsidiary Class A Certificateholders.
Specific information relating to the 1989-2 Mortgage Loans, as well as other
information relating to the sale and servicing of the Mortgage Loans is set
forth in the Pooling and Servicing Agreement for the Subsidiary Class A
Certificates dated as of July 1, 1989, (the "Series 1989-2 Agreement;"
collectively, the Series 1987-1 Agreement, Series 1987-2 Agreement, Series
1987-3 Agreement, Series 1988-1 Agreement, Series 1988-2 Agreement, the Series
1988-3 Agreement, the Series 1989-1 Agreement and the Series 1989-2 Agreement
are referred to herein as the "Agreements"). Information relating to the REMIC
Pass-Through Certificates, as well as other information is set forth in a trust
agreement dated as of July 1, 1989, (the "Trust Agreement"). The Series 1989-2
Agreement and the Trust Agreement were included as exhibits to Registrant's Form
8-K dated July 27, 1989, and file with the Commission.

        On August 25, 1997, a monthly distribution as required by the
Agreements, was made to the holders of the Class A and Class B Certificates for
the Series 1987-1 Certificates, 1987-2 Certificates, 1987-3 Certificates, and
Series 1988-1 Certificates, Series 1988-2 Certificates, the Series 1988-3
Certificates, the Series 1989-1 Certificates and the Series 1989-2 Certificates.
Copies of the reports (collectively, the "Reports") sent to the holders of the
Class A and Class B Certificates of each such Series describing such
distributions, the payments on the underlying Mortgage Loans and other relevant
information, all as the date of the Reports and as required by the Agreements,
are included as exhibits to this report.



                                       4
<PAGE>   5
                                    SIGNATURE

        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.

Dated:  August 27, 1997                WFS (REPUBLIC) INC.
                                       (Registrant)

                                       By:   /s/  L. CORDELL McCARREY
                                          ---------------------------------
                                          L. Cordell McCarrey
                                          Authorized Signator


                                       5
<PAGE>   6
                                 EXHIBITS INDEX

 EXHIBIT                                             
   NO.                                DESCRIPTION
 -------                              -----------

   1.1      Report to Certificateholders for Series 1987-1 dated August 25, 1997
   1.2      Report to Certificateholders for Series 1987-2 dated August 25, 1997
   1.3      Report to Certificateholders for Series 1987-3 dated August 25, 1997
   1.4      Report to Certificateholders for Series 1988-1 dated August 25, 1997
   1.5      Report to Certificateholders for Series 1988-2 dated August 25, 1997
   1.6      Report to Certificateholders for Series 1988-3 dated August 25, 1997
   1.7      Report to Certificateholders for Series 1989-1 dated August 25, 1997



                                       6

<PAGE>   1
                                                                     EXHIBIT 1.1


                          WEYERHAEUSER MORTGAGE COMPANY
                       MORTGAGE INVESTOR SERVICING REPORT

CUTOFF DATE:      JULY 30, 1997                     GROUP:             INV #810

REPORT DATE:      AUGUST 25, 1997                   SERIES:           1987-1

SECTION 1 -- MORTGAGE POOL ADMINISTRATION

<TABLE>
<CAPTION>
=================================================================================================================
                                               # OF                P & I               POOL             POOL
POOL ACTIVITY                                  LOANS              CONSTANT            INTEREST        PRINCIPAL
=================================================================================================================
<S>                                     <C>                      <C>                 <C>              <C>
Beginning Balance                                  3               4,510.25                           439,800.89
                                       --------------------------------------------------------------------------
Installments                                                                           3,817.55           692.70
                                       --------------------------------------------------------------------------
Curtailments                                                                                                0.00
                                       --------------------------------------------------------------------------
Liquidations                                       0                   0.00                0.00             0.00
                                       --------------------------------------------------------------------------
Other                                                                                      0.00             0.00
                                       --------------------------------------------------------------------------
Ending Balance                                     3               4,510.25                           439,108.19
                                       ==========================================================================
                                                                         SERVICING FEE:                    91.63
                                                                                             --------------------
</TABLE>

<TABLE>
<CAPTION>
                          TOTAL
DELINQUENTS                DELQ           30 DAYS          60 DAYS            90 DAYS +               F/C
==========================================================================================================
<S>               <C>             <C>               <C>                 <C>                  <C>
# Of Loans                    0               0                 0                   0                    0
                  ----------------------------------------------------------------------------------------
Princ Bal                  0.00            0.00              0.00                0.00                 0.00
                  ----------------------------------------------------------------------------------------
% Delq                    0.00%            0.00%             0.00%               0.00%                0.00%
                  ----------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
                                                       INTEREST           PRINCIPAL                  S/F
<S>                                                <C>                   <C>                   <C>  
Amount Prepaid                                         1,365.60              300.67                31.67
                                                   -----------------------------------------------------
Amount Delinquent                                          0.00                0.00                 0.00
                                                   -----------------------------------------------------
</TABLE>

SECTION 1-A -- SCHEDULED MORTGAGE INSTALLMENTS
================================================================================
WAM = Sept-2016                                 NOTE RATE = (         10.41633%)


<TABLE>
<CAPTION>
   A. CONSTANT                     B. SCHEDULED                   C. SCHED.
                                      INTEREST                       PRINCIPAL
- --------------------------------------------------------------------------------
<S>                               <C>                             <C>   
      4,510.25                        3,814.21                        696.04
- --------------------------------------------------------------------------------
</TABLE>

                                     Page 1

<PAGE>   2

SECTION 2 - SCHEDULE OF PAYMENTS               1987-1              JULY 30, 1997

<TABLE>
<CAPTION>
==========================================================================================================
   A. SCHEDULED                        B. ADDITIONAL      C. PREPAIDS          D. OTHERS      E. TOTAL
      PRINCIPAL                           PRINCIPAL          IN FULL                             PRINCIPAL
==========================================================================================================
<S>                                    <C>                <C>                  <C>             <C>   
         696.04                               0.00             0.00                0.00             696.04
==========================================================================================================
F. Int. Distribution Amount (Yield                                    10.16634%)                  3,722.67
                                                                                             -------------
G. Total Distribution Amount (Principal & Interest)                                               4,418.71
                                                                                             =============
H. Certificates A-2 Distribution (3A X 91.75% @ YIELD-7.5%)/12                                      895.80
                                                                                             =============
I. Certificates A-1 Distribution
                                        (E x 91.75%) Princ:                      638.61
              (3A x 91.75% @ 7.5%)/12                Int:                      2,519.75
                                                                                             -------------
                                                                                                  3,158.36
                                                                                             =============
J. Certificate B Distribution (G x 8.25%)
                                         (E x 8.25%) Princ:                       57.43
                                         (F x 8.25%) Int:                        307.12
                                                                                             -------------
                                                                                                    364.55
                                                                                             =============
SECTION 3 - PRINCIPAL AMOUNT OF SECURITIES
==========================================================================================================
A. Beginning Aggregate Security Balance                                                         439,411.48
                                                                                             -------------
B. Principal Distribution Amount                                                                    696.04
                                                                                             -------------
C. Ending Aggregate Security Balance                                                            438,715.44
                                                                                             =============
MEMO ITEM
==========================================================================================================
A. Book Value Of Real Estate Acquired Through Foreclosure                                             N/A
                                                                                             -------------
B. Ending Aggregate Security Balance Of The Class A
   Certificates (91.75% of Security Balance)                                                    402,521.78
                                                                                             -------------
C. Ending Aggregate Security Balance Of The Class B
   Certificates (8.25% of Security Balance)                                                      36,193.66
                                                                                             -------------
</TABLE>


All distributions required to be made by First Interstate Bank for the reporting
month of: JULY 1997                       Payable: Aug 25, 1997  have been made.

Certified by:

/s/ KATHY MUELLER  
- ---------------------------------------
Kathy Mueller, Supervisor      
Investor Reporting Department


                                     Page 2

<PAGE>   3

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------
                          SUBORDINATED AMOUNT              1987-1               JULY 30, 1997
=============================================================================================
                                                           PERCENT                  DOLLARS
<S>                                                  <C>                         <C>
 A.  BEGINNING BALANCE                                        8.25                 303,439.00
                                                     ----------------------------------------
 B.  AGGREGATE LOSSES

 C.  SCHEDULED ADJUSTMENTS PER
     POOLING & SERVICING AGREEMENT                                                (926,237.00)
                                                     ----------------------------------------
 D.  ENDING BALANCE                                           8.25                 303,439.00
=============================================================================================

RESERVE FUND

 A.  BEGINNING BALANCE                                                             303,439.00
                                                                                  -----------
 B.  (+) INTEREST CREDITED                                                               0.00
                                                                                  -----------
 C.  (-) INTEREST WITHDRAWN                                                              0.00
                                                                                  -----------
 D.  (+) CLASS B PRINCIPAL (UNTIL LIMITS ARE REACHED)                                   57.43
                                                                                  -----------
 E.  (+) CLASS B INTEREST (UNTIL LIMITS ARE REACHED)                                   307.12
                                                                                  -----------
 F.  (-) TRANSFER TO CLASS A
                                                                                  -----------
 G.  SUB TOTAL                                                                     303,803.55
=============================================================================================

 NOTES:

   INITIAL DEPOSIT (UNRETURNED TO SELLER)                                                0.00
                                                                                  -----------
   THREE CURRENT HIGHEST PRINCIPAL BALANCES                                        439,108.19
                                                                                  -----------
   SPECIFIED RESERVE FUND:                                                         303,439.00
                                                                                  -----------
   CLASS B  PRIN & INT  TRANSFER TO REPUBLIC FEDERAL:                                  364.55
    (equal to amt over Specified Reserve Fund Limit)                              -----------

=============================================================================================
 H.  ENDING BALANCE                                                                303,439.00
=============================================================================================
</TABLE>


                                     Page 3
<PAGE>   4

<TABLE>
<CAPTION>
                    RECONCILIATION OF POOL PRINCIPAL BALANCE
                         WITH SECURITY PRINCIPAL BALANCE
                                  POOL NO. 810
                  <S>                            <C>       
                                                  439,108.19
                  (+)                                 300.67
                  (-)                                   0.00
                  (-)                                 696.04
                  (+)                                   0.00
                  (-)                                   0.00

                                                  438,712.82

                                                  438,715.44

                                                       (2.62)


                   RECONCILIATION OF CUSTODIAL ACCOUNT BALANCE

                  (+)                               1,666.27
                  (-)                                  31.67
                  (-)                                   0.00
                  (+)                                   0.00
                  (+)                                   0.00
                  (+)                                   0.00
                  (+)                                   0.00
                  (-)                                   0.00
                  (+)                                   0.00
                  (+)                                   0.00
                  (-)                                   0.00

                                                    1,634.60

                                                    1,634.47

                                                       (0.13)
</TABLE>


                                     Page 4

<PAGE>   5

                          SENIOR SUBORDINATED PASS-THRU
                          SPECIFIED RESERVE FUND LIMITS

REPORTING MONTH:  7/31/97
<TABLE>
<CAPTION>
                                                                       1987-1
                                                                     ----------
<S>                                                                  <C>
       (A)        TERM                                                       30
       (B)        LOAN TYPE                                               FIXED
       (C)        CLASS A %                                              91.75%
       (D)        CLASS B %                                               8.25%
       (E)        ORIGINAL AGGREGATE BALANCE                         57,761,206
       (F)        CURRENT UPB                                           439,108
       (G)        RULE CHANGE DATE                                     04/01/92
       (H)        ORIGINAL CUTOFF DATE                                 02/01/87

SUBORDINATED CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)

       (I)        PREVIOUS SUBORDINATED AMT                             303,439
       (J)        CLASS B % OF CURR UPB (E)x(D)                          36,226
       (K)        AGGREGATE LOSSES                                            0
       (L)        SUB AMT UNTIL RULE CHANGE DATE (J-K)                  303,439

RESERVE CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)

       (M)        ADVANCE RESERVE                                       228,306
       (N)        1% OF CURR AGG BAL (E) x .01                            4,391
       (O)        O.S. UPB CLASS B (F)x(D)                               36,226
       (P)        SUBORD AMT - OS UBP CLASS B (L)-(O)                   267,213
       (Q)        ADV RES + GRT'R OF: (N) or (P)                        495,519
                                                                     ----------

MINIMUM RESERVE FUND

       (R)        O.S. UPB 3 LARGEST LNS                                439,108
       (S)        SUBORDINATED AMOUNT (L)                               303,439
                                                                     ----------
       (T)        SPECIFIED RESERVE FUND = > OF (R)or(S)                303,439
                                                                     ==========
       (U)        CURRENT RESERVE FUND BALANCE                          303,439

STATUS OF INITIAL DEPOSIT

       (V)        ORIGINAL INITIAL DEPOSIT                              228,306
</TABLE>

<TABLE>
<CAPTION>
                                     RULES
                                     -----

<S>                                                <C>
 SUBORDINATED AMOUNT                               AFTER RULE CHANGE DATE: SUB AMOUNT =
 UNTIL RULE CHANGE DATE: SUB AMOUNT =              LESSER OF A: PREVIOUS SUB AMOUNT AND
 CLASS B % OF ORIG AGGR BAL                                         B: THE SUM OF
 LESS AGGR LOSSES SINCE ORIG CUTOFF DATE                               (x) CLASS B % OF CURRENT UPB
                                                                       (y) 4/1992 80% OF (A)-(x)     }
                                                                           4/1993 60% OF (A)-(x)     }
                                                                           4/1994 40% OF (A)-(x)     } REDUCTION SCHEDULE
                                                                           4/1995 20% OF (A)-(x)     }
                                                                           4/1996+ 0% OF (A)-(x)     }
</TABLE>

HOWEVER:

(B) CANNOT BE < SUM OF O.S. UPB 3 LARGEST LOANS

IMPORTANT:

     IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE 90 DAY+
DELINQUENCIES -7% OF TOTAL LOAN COUNT FOR 2 CONSECUTIVE MONTHS, THE REDUCTION
FOR THAT MONTH WILL NOT TAKE PLACE.

     IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE THE ABOVE RULE IS NOT
BROKEN, REDUCTIONS WILL TAKE PLACE AS SCHEDULED.

================================================================================

SPECIFIED RESERVE FUND

UNTIL RULE CHANGE DATE: SPECIFIED RESERVE FUND =

     THE SUM OF (i) ADVANCE RESERVE          THE SUM OF (i) ADVANCE RESERVE
     AND   (ii) THE GREATER OF                 AND   (ii) THE GREATER OF

       (a) 1% OF ORIGINAL AGGR BAL             (a) 1% OF CURRENT O.S. AGGR BAL
       (b) SUB AMOUNT - O.S. BAL CLASS B       (b) SUB AMOUNT - O.S. BAL CLASS B


HOWEVER;
(ii) CANNOT BE < THE SMALLER OF: (a) THE O.S. UPB 3 LRGST LOANS ....
                                                (b) SUB AMOUNT
                NOR >: SUBORDINATED AMOUNT
WHEN SUB AMOUNT = ZERO, SPECIFIED RESERVE FUND = ADVANCE RESERVE



                                     Page 5

<PAGE>   1
                                                                     EXHIBIT 1.2


                          WEYERHAEUSER MORTGAGE COMPANY
                       MORTGAGE INVESTOR SERVICING REPORT

CUTOFF DATE:    JULY 30, 1997                           GROUP:         INV #811
REPORT DATE:    AUGUST 25, 1997                         SERIES:        1987-2


SECTION 1 - MORTGAGE POOL ADMINISTRATION

<TABLE>
<CAPTION>
===============================================================================================
                                       # OF       P & I            POOL               POOL
POOL ACTIVITY                         LOANS      CONSTANT         INTEREST          PRINCIPAL
===============================================================================================
<S>                              <C>             <C>              <C>              <C>
Beginning Balance                        37      54,016.98                         6,299,417.10
                                 --------------------------------------------------------------
Installments                                                      34,778.65            7,866.92
                                 --------------------------------------------------------------
Curtailments                                                                           1,120.08
                                 --------------------------------------------------------------
Liquidations                              0           0.00             0.00                0.00
                                 --------------------------------------------------------------
Other                                                (4.23)            0.27                0.00
                                 --------------------------------------------------------------
Ending Balance                           37      54,012.75                         6,290,430.10
                                 ==============================================================
                                                        SERVICING FEE:                 1,613.27
                                                                                   ------------
</TABLE>

<TABLE>
<CAPTION>
                      TOTAL
DELINQUENTS            DELQ       30 DAYS       60 DAYS         90 DAYS +             F/C
===============================================================================================
<S>             <C>            <C>              <C>             <C>             <C>
# Of Loans                1             1                0                0                   0
                -------------------------------------------------------------------------------
Princ Bal        156,365.66    156,365.66             0.00             0.00                0.00
                -------------------------------------------------------------------------------
% Delq                 2.49%         2.49%            0.00%            0.00%               0.00%
                -------------------------------------------------------------------------------

                                                   INTEREST        PRINCIPAL              S/F

Amount Prepaid                                     6,014.17         1,374.80             282.85
                                            ---------------------------------------------------
Amount Delinquent                                  1,123.88           241.26              65.15
                                            ---------------------------------------------------
</TABLE>


SECTION 1-A - SCHEDULED MORTGAGE INSTALLMENTS
================================================================================
WAM = Jun-2017                                NOTE RATE = (           8.372513%)
WAMG = 2.67080

<TABLE>
<CAPTION>
  A. CONSTANT                      B. SCHEDULED                C. SCHED.
                                      INTEREST                    PRINCIPAL
- ---------------------------------------------------------------------------
<S>                               <C>                          <C>
    54,016.98                        43,904.77                    10,112.21
- ---------------------------------------------------------------------------
</TABLE>



                                     Page 1

<PAGE>   2

SECTION 2 - SCHEDULE OF PAYMENTS            1987-2                 JULY 30, 1997

<TABLE>
<CAPTION>
=============================================================================================
   A. SCHEDULED              B. ADDITIONAL      C. PREPAIDS        D. OTHERS     E. TOTAL
      PRINCIPAL                 PRINCIPAL          IN FULL                          PRINCIPAL
=============================================================================================
<S>                          <C>                <C>                <C>        <C>
      10,112.21                   1,120.08             0.00            (3.96)       11,228.33
=============================================================================================
F. Int. Distribution Amount (Yield                8.017027%)                        42,040.63
                                                                              ---------------
G. Total Distribution Amount (Principal & Interest)                                 53,268.96
                                                                              ===============
H. Certificates A-1 Distribution
                                  (E x 91.4%)  Princ:              10,262.69
                                  (E x 91.4%)  Int:                38,425.14
                                                                              ---------------
                                                                                    48,687.83
                                                                              ===============
I. Certificate B Distribution (G x 8.6%)
                                   (E x 8.6%)  Princ:                 965.64
                                   (F x 8.6%)  Int:                 3,615.49
                                                                              ---------------
                                                                                     4,581.13
                                                                              ===============
SECTION 3 - PRINCIPAL AMOUNT OF SECURITIES
=============================================================================================
A. Beginning Aggregate Security Balance                                          6,292,701.22
                                                                              ---------------
B. Principal Distribution Amount                                                    11,228.33
                                                                              ---------------
C. Ending Aggregate Security Balance                                             6,281,472.89
                                                                              ===============
MEMO ITEM
=============================================================================================
A. Book Value Of Real Estate Acquired Through Foreclosure                                 N/A
                                                                              ---------------
B. Ending Aggregate Security Balance Of The Class A
   Certificates (91.4% of Security Balance)                                      5,741,267.23
                                                                              ---------------
C. Ending Aggregate Security Balance Of The Class B
   Certificates (8.6% of Security Balance)                                         540,205.66
                                                                              ---------------
</TABLE>

All distributions required to be made by First Interstate Bank for the reporting
month of: JULY 97                          Payable: AUG 25, 97 have been made.

Certified by:

/s/ KATHY MUELLER
- ---------------------------------
Kathy Mueller, Supervisor
Investor Reporting Department



                                     Page 2
<PAGE>   3

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
                    SUBORDINATED AMOUNT          1987-2           JULY 30, 1997
================================================================================
                                                PERCENT               DOLLARS
<S>                                         <C>                   <C>
 A.  BEGINNING BALANCE                                8.6           3,953,444.93
                                                 --------           ------------
 B.  AGGREGATE LOSSES                                                   2,500.68
                                                                    ------------
 C.  SCHEDULED ADJUSTMENTS PER
     POOLING & SERVICING AGREEMENT                                          0.00
                                                                    ------------
 D.  ENDING BALANCE                                   8.6           3,950,944.25
                                                 ========           ============

RESERVE FUND

 A.  BEGINNING BALANCE                                              3,618,194.45
                                                                   -------------
 B.  (+) INTEREST CREDITED                                                  0.00
                                                                   -------------
 C.  (-) INTEREST WITHDRAWN                                                 0.00
                                                                   -------------
 D.  (+) CLASS B PRINCIPAL (UNTIL LIMITS ARE REACHED)                     965.64
                                                                   -------------
 E.  (+) CLASS B INTEREST (UNTIL LIMITS ARE REACHED)                    3,615.49
                                                                   -------------
 F.  (-) TRANSFER TO WMC                                                    0.00
                                                                   -------------
 G.  SUB TOTAL                                                      3,622,775.58
                                                                   =============
 NOTES:

   INITIAL DEPOSIT (UNRETURNED TO SELLER)                                   0.00
                                                                   -------------
   THREE CURRENT HIGHEST PRINCIPAL BALANCES                         1,142,706.85
                                                                   -------------
   SPECIFIED RESERVE FUND:                                          3,618,967.33
                                                                   -------------
   CLASS B  PRIN & INT  TRANSFER TO REPUBLIC FEDERAL:                   3,808.25
                                                                   -------------
    (equal to amt over Specified Reserve Fund Limit)

 H.  ENDING BALANCE                                                 3,618,967.33
                                                                   =============
</TABLE>



                                     Page 3

<PAGE>   4

<TABLE>
<CAPTION>
                    RECONCILIATION OF POOL PRINCIPAL BALANCE
                         WITH SECURITY PRINCIPAL BALANCE
                                  POOL NO. 811

                <S>                                <C>
                                                   6,290,430.10
                (+)                                    1,374.90
                (-)                                      241.26
                (-)                                   10,112.21
                (+)                                        0.00
                (-)                                       (3.96)

                                                   6,281,455.49

                                                   6,281,472.89

                                                         (17.40)

                 RECONCILIATION OF CUSTODIAL ACCOUNT BALANCE

                (+)                                    7,389.07
                (-)                                      282.85
                (-)                                    1,365.14
                (+)                                       65.15
                (+)                                    1,120.08
                (+)                                        0.27 
                (+)                                        0.01
                (+)                                        0.00
                (+)                                        0.00
                (-)                                        0.00

                                                       6,926.57

                                                       7,167.18

                                                         240.61 Pull #838974498
</TABLE>



                                     Page 4

<PAGE>   5

                          SENIOR SUBORDINATED PASS-THRU
                          SPECIFIED RESERVE FUND LIMITS


<TABLE>
<CAPTION>
REPORTING MONTH:  7/31/97                                              1987-2
                                                                     ----------
<S>                                                                  <C>
      (A)       TERM                                                         30
      (B)       LOAN TYPE                                                  ARMS
      (C)       CLASS A %                                                91.40%
      (D)       CLASS B %                                                 8.60%
      (E)       ORIGINAL AGGREGATE BALANCE                           45,970,290
      (F)       CURRENT UPB                                           6,290,430
      (G)       RULE CHANGE DATE                                       01/01/98
      (H)       ORIGINAL CUTOFF DATE                                   12/01/87

SUBORDINATED CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)

      (I)       PREVIOUS SUBORDINATED AMT                             3,953,445
      (J)       CLASS B % OF CURR UPB (E)x(D)                         3,953,445
      (K)       AGGREGATE LOSSES                                          2,501
      (L)       SUB AMT UNTIL RULE CHANGE DATE (J-K)                  3,950,944

RESERVE CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)


      (M)       ADVANCE RESERVE                                         209,000
      (N)       1% OF CURR AGG BAL (E) x .01                            459,703
      (O)       O.S. UPB CLASS B (F)x(D)                                540,977
      (P)       SUBORD AMT - OS UBP CLASS B (L)-(O)                   3,409,967
      (Q)       ADV RES + GRT'R OF: (N) or (P)                        3,618,967
                                                                     ----------
MINIMUM RESERVE FUND

      (R)       O.S. UPB 3 LARGEST LNS                                1,142,707
      (S)       SUBORDINATED AMOUNT (L)                               1,351,707
                                                                     ----------
      (T)       SPECIFIED RESERVE FUND = > OF (Q)or(S)                3,618,967
                                                                     ==========
      (U)       CURRENT RESERVE FUND BALANCE                          3,618,967

STATUS OF INITIAL DEPOSIT

      (V)       ORIGINAL INITIAL DEPOSIT                                 53,000
</TABLE>

<TABLE>
<CAPTION>
                                      RULES
                                      -----
<S>                                            <C>
SUBORDINATED AMOUNT                            AFTER RULE CHANGE DATE: SUB AMOUNT =
UNTIL RULE CHANGE DATE: SUB AMOUNT =           LESSER OF A: PREVIOUS SUB AMOUNT AND
CLASS B % OF ORIG AGGR BAL                                   B: THE SUM OF
LESS AGGR LOSSES SINCE ORIG CUTOFF DATE                         (x) CLASS B % OF CURRENT UPB
                                                                (y) 1/1998 80% OF (A)-(x)  }
                                                                    1/1999 60% OF (A)-(x)  }
                                                                    1/2000 40% OF (A)-(x)  } REDUCTION SCHEDULE
                                                                    1/2001 20% OF (A)-(x)  }
                                                                    1/2002+ 0% OF (A)-(x)  }
</TABLE>

HOWEVER:

      (B) CANNOT < SUM OF O.S. UPB 3 LARGEST LOANS

IMPORTANT:

     IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE 90 DAY+ DELINQUENCIES
- -7% OF TOTAL L COUNT FOR 2 CONSECUTIVE MONTHS, THE REDUCTION FOR THAT MONTH
WILL NOT TAKE PLACE.

     IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE THE ABOVE RULE IS NOT
BROKEN, REDUCTIONS WILL TAKE PLACE AS SCHEDULED.

================================================================================

SPECIFIED RESERVE FUND

UNTIL RULE CHANGE DATE: SPECIFIED RESERVE FUND =

<TABLE>
<S>                             <C>                           <C>
THE SUM OF (i) ADVANCE RESERVE                                THE SUM OF (i) ADVANCE RESERVE
AND       (ii) THE GREATER OF                                 AND       (ii) THE GREATER OF
                               (a) 1% OF ORIGINAL AGGR BAL                   (a) 1% OF CURRENT O.S. AGGR BAL
                               (b) SUB AMOUNT - O.S. BAL CLASS B             (b) SUB AMOUNT - O.S. BAL CLASS B
</TABLE>

HOWEVER;
(ii) CANNOT BE < THE SMALLER OF:  (a) THE O.S. UPB 3 LRGST LOANS ....
                                              (b) SUB AMOUNT
                          NOR >: SUBORDINATED AMOUNT
WHEN SUB AMOUNT = ZERO, SPECIFIED RESERVE FUND = ADVANCE RESERVE>


                                     Page 5

<PAGE>   1
                                                                     EXHIBIT 1.3

                          WEYERHAEUSER MORTGAGE COMPANY
                       MORTGAGE INVESTOR SERVICING REPORT

CUTOFF DATE:     JULY 30, 1997                          GROUP:          INV #812
REPORT DATE:     AUGUST 25, 1997                        SERIES:         1987-3

SECTION 1 - MORTGAGE POOL ADMINISTRATION

<TABLE>
<CAPTION>
=========================================================================================================
                                           # OF          P & I              POOL                POOL
POOL ACTIVITY                             LOANS         CONSTANT           INTEREST           PRINCIPAL
=========================================================================================================
<S>                                 <C>             <C>                    <C>             <C>
Beginning Balance                           29          40,486.88                            4,670,131.95
                                    ---------------------------------------------------------------------
Installments                                                               30,901.93             6,919.51
                                    ---------------------------------------------------------------------
Curtailments                                                                                       246.14
                                    ---------------------------------------------------------------------
Liquidations                                 1           3,850.46           6,212.50           432,544.69
                                    ---------------------------------------------------------------------
Other                                                       95.13               1.77                 0.00
                                    ---------------------------------------------------------------------
Ending Balance                              28          36,731.55                            4,230,421.61
                                    =====================================================================
                                                     SERVICING FEE:                              2,136.48
                                                                                            -------------
</TABLE>

<TABLE>
<CAPTION>
                       TOTAL
DELINQUENTS            DELQ            30 DAYS         60 DAYS           90 DAYS +              F/C
===================================================================================================
<S>              <C>                <C>              <C>                 <C>                  <C>
# Of Loans                  1                1               0                 0                  0
                 ----------------------------------------------------------------------------------
Princ Bal           90,495.22        90,495.22             0.00             0.00               0.00
                 ----------------------------------------------------------------------------------
% Delq                   2.14%            2.14%            0.00%            0.00%              0.00%
                 ----------------------------------------------------------------------------------

                                                       INTEREST        PRINCIPAL                S/F

Amount Prepaid                                         1,294.79           277.95              75.06
                                              -----------------------------------------------------
Amount Delinquent                                        631.58           140.49              18.85
                                              -----------------------------------------------------
</TABLE>

SECTION 1-A - SCHEDULED MORTGAGE INSTALLMENTS

================================================================================
WAM = June-2017                      NOTE RATE = (                    8.516275%)
WAMG = 2.72197

<TABLE>
<CAPTION>
  A. CONSTANT                    B. SCHEDULED                  C. SCHED.
                                    INTEREST                      PRINCIPAL
- ---------------------------------------------------------------------------
<S>                             <C>                            <C>     
    40,486.88                       33,090.00                      7,396.88
- ---------------------------------------------------------------------------
</TABLE>


                                     Page 1

<PAGE>   2

SECTION 2 - SCHEDULE OF PAYMENTS                 1987-3            JULY 30, 1997

<TABLE>
<CAPTION>
=====================================================================================================
   A. SCHEDULED                     B. ADDITIONAL     C. PREPAIDS         D. OTHERS      E. TOTAL
      PRINCIPAL                        PRINCIPAL         IN FULL                            PRINCIPAL
=====================================================================================================
<S>                                 <C>               <C>                 <C>          <C>       
       7,396.88                           246.14         431,056.27             96.90      438,796.19
=====================================================================================================
F. Int. Distribution Amount (Yield                         8.076197%)                       31,380.08
                                                                                       --------------
G. Total Distribution Amount (Principal & Interest)                                        470,176.27
                                                                                       ==============
H. Certificates A-1 Distribution
                                     (E x 91.25%) Princ:                   400,401.52
                                     (E x 91.25%) Int:                      28,634.32
                                                                                       --------------
                                                                                           429,035.84
                                                                                       ==============
I. Certificate B Distribution (G x 8.6%)
                                      (E x 8.75%) Princ:                    38,394.67
                                      (F x 8.75%) Int:                       2,745.76
                                                                                       --------------
                                                                                            41,140.43
                                                                                       ==============
SECTION 3 - PRINCIPAL AMOUNT OF SECURITIES
=====================================================================================================
A. Beginning Aggregate Security Balance                                                  4,662,602.05
                                                                                       --------------
B. Principal Distribution Amount                                                           438,796.19
                                                                                       --------------
C. Ending Aggregate Security Balance                                                     4,223,805.86
                                                                                       ==============
MEMO ITEM
=====================================================================================================
A. Book Value Of Real Estate Acquired Through Foreclosure                                         N/A
                                                                                       --------------
B. Ending Aggregate Security Balance Of The Class A
   Certificates (91.25% of Security Balance)                                             3,854,222.63
                                                                                       --------------
C. Ending Aggregate Security Balance Of The Class B
   Certificates (8.75% of Security Balance)                                                369,583.23
                                                                                       --------------
</TABLE>



All distributions required to be made by First Interstate Bank for the reporting
month of: JULY 97                          Payable: AUG 25, 97   have been made.

Certified by:


/s/ KATHY MUELLER 
- ------------------------------------
Kathy Mueller, Supervisor    
Investor Reporting Department


                                     Page 2

<PAGE>   3
<TABLE>
<CAPTION>
================================================================================
           SUBORDINATED AMOUNT                      1987-3        JULY 30, 1997
================================================================================
                                                    PERCENT          DOLLARS
<S>                                               <C>               <C>
 A.  BEGINNING BALANCE                                    8.75      4,862,998.61
                                                  ------------------------------
 B.  AGGREGATE LOSSES                                                  23,585.00
                                                  ------------------------------
 C.  SCHEDULED ADJUSTMENTS PER
     POOLING & SERVICING AGREEMENT                                          0.00
                                                  ------------------------------
 D.  ENDING BALANCE                                       8.75      4,862,998.61
================================================================================

RESERVE FUND

 A.  BEGINNING BALANCE                                              4,722,777.39
                                                                    ------------
 B.  (+) INTEREST CREDITED                                                  0.00
                                                                    ------------
 C.  (-) INTEREST WITHDRAWN                                                 0.00
                                                                    ------------
 D.  (+) CLASS B PRINCIPAL (UNTIL LIMITS ARE REACHED)                  38,394.67
                                                                    ------------
 E.  (+) CLASS B INTEREST (UNTIL LIMITS ARE REACHED)                    2,745.76
                                                                    ------------
 F.  (-) TRANSFER TO CLASS A
                                                                    ------------
 G.  SUB TOTAL                                                      4,763,917.82
================================================================================

 NOTES:

   INITIAL DEPOSIT (UNRETURNED TO SELLER)                                   0.00
                                                                    ------------
   THREE CURRENT HIGHEST PRINCIPAL BALANCES                         1,046,927.20
                                                                    ------------
   SPECIFIED RESERVE FUND:                                          4,761,252.05
                                                                    ------------
   CLASS B  PRIN & INT  TRANSFER TO REPUBLIC FEDERAL:                   2,665.77
                                                                    ------------
    (equal to amt over Specified Reserve Fund Limit)
- --------------------------------------------------------------------------------
 H.  ENDING BALANCE                                                 4,761,252.05
================================================================================
</TABLE>


                                     Page 3

<PAGE>   4

<TABLE>
<CAPTION>
                    RECONCILIATION OF POOL PRINCIPAL BALANCE
                         WITH SECURITY PRINCIPAL BALANCE
                                  POOL NO. 812
             <S>                                     <C>   
                                                       4,230,421.61
             (+)                                             277.95
             (-)                                             140.49
             (-)                                           7,396.88
             (+)                                             746.87
             (-)                                              96.90 

                                                       4,223,812.16

                                                       4,223,805.86

                                                               6.30

                     RECONCILIATION OF CUSTODIAL ACCOUNT BALANCE

             (+)                                           1,572.74
             (-)                                              75.06
             (-)                                             772.07
             (+)                                              18.85
             (+)                                             246.14
             (+)                                               1.77
             (+)                                               0.10
             (+)                                         431,056.27
             (+)                                           3,850.46
             (-)                                             179.92

                                                         435,719.08

                                                         435,720.20

                                                               1.12
</TABLE>


                                     Page 4

<PAGE>   5

                          SENIOR SUBORDINATED PASS-THRU
                          SPECIFIED RESERVE FUND LIMITS

<TABLE>
<CAPTION>
REPORTING MONTH:  7/31/97                                              1987-3
                                                                     ----------
<S>                                                                  <C>
      (A)        TERM                                                       30
      (B)        LOAN TYPE                                                ARMS
      (C)        CLASS A %                                              91.25%
      (D)        CLASS B %                                               8.75%
      (E)        ORIGINAL AGGREGATE BALANCE                         55,577,136
      (F)        CURRENT UPB                                         4,230,422
      (G)        RULE CHANGE DATE                                     01/01/98
      (H)        ORIGINAL CUTOFF DATE                                 12/01/87

SUBORDINATED CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)

      (I)        PREVIOUS SUBORDINATED AMT                           4,862,999
      (J)        CLASS B % OF CURR UPB (E)x(D)                       4,862,999
      (K)        AGGREGATE LOSSES                                       23,585
      (L)        SUB AMT UNTIL RULE CHANGE DATE (J-K)                4,839,414

RESERVE CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)

      (M)        ADVANCE RESERVE                                       292,000
      (N)        1% OF CURR AGG BAL (E) x .01                          555,771
      (O)        O.S. UPB CLASS B (F)x(D)                              370,162
      (P)        SUBORD AMT - OS UBP CLASS B (L)-(O)                 4,469,252
      (Q)        ADV RES + GRT'R OF: (N) or (P)                      4,761,252
                                                                     ----------

MINIMUM RESERVE FUND

      (R)        O.S. UPB 3 LARGEST LNS                              1,046,927
      (S)        SUBORDINATED AMOUNT (L)                             1,338,927
                                                                     ----------
      (T)        SPECIFIED RESERVE FUND = > OF (Q)or(S)              4,761,252
                                                                     ==========
      (U)        CURRENT RESERVE FUND BALANCE                        4,761,252

STATUS OF INITIAL DEPOSIT

      (V)        ORIGINAL INITIAL DEPOSIT                               73,000

</TABLE>

<TABLE>
<CAPTION>
                                      RULES
                                      -----
<S>                                             <C>
SUBORDINATED AMOUNT                             AFTER RULE CHANGE DATE: SUB AMOUNT =
UNTIL RULE CHANGE DATE: SUB AMOUNT =            LESSER OF A: PREVIOUS SUB AMOUNT AND
CLASS B % OF ORIG AGGR BAL                                       B: THE SUM OF
LESS AGGR LOSSES SINCE ORIG CUTOFF DATE                             (x) CLASS B % OF CURRENT UPB
                                                                    (y) 1/1998 80% OF (A)-(x)   }
                                                                        1/1999 60% OF (A)-(x)   }
                                                                        1/2000 40% OF (A)-(x)   } REDUCTION SCHEDULE
                                                                        1/2001 20% OF (A)-(x)   }
                                                                        1/2002+ 0% OF (A)-(x)   }
</TABLE>

HOWEVER:
(B) CANNOT < SUM OF O.S. UPB 3 LARGEST LOANS

IMPORTANT:

     IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE 90 DAY+ DELINQUENCIES
- -7% OF TOTAL LOAN COUNT FOR 2 CONSECUTIVE MONTHS, THE REDUCTION FOR THAT MONTH
WILL NOT TAKE PLACE.

     IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE THE ABOVE RULE IS NOT
BROKEN, REDUCTIONS WILL TAKE PLACE AS SCHEDULED.

================================================================================

SPECIFIED RESERVE FUND

UNTIL RULE CHANGE DATE:  SPECIFIED RESERVE FUND =

<TABLE>
    <S>                                                          <C>
    THE SUM OF (i) ADVANCE RESERVE                               THE SUM OF (i) ADVANCE RESERVE
    AND       (ii) THE GREATER OF                                AND       (ii) THE GREATER OF
                               (a) 1% OF ORIGINAL AGGR BAL                      (a) 1% OF CURRENT O.S. AGGR BAL
                               (b) SUB AMOUNT - O.S. BAL CLASS B                (b) SUB AMOUNT - O.S. BAL CLASS B
</TABLE>

HOWEVER;
(ii) CANNOT BE < THE SMALLER OF:  (a) THE O.S. UPB 3 LRGST LOANS ....
                                           (b) SUB AMOUNT
            NOR >: SUBORDINATED AMOUNT
WHEN SUB AMOUNT = ZERO, SPECIFIED RESERVE FUND = ADVANCE RESERVE>



                                     Page 5

<PAGE>   1
                                                                     EXHIBIT 1.4


                          WEYERHAEUSER MORTGAGE COMPANY
                       MORTGAGE INVESTOR SERVICING REPORT


CUTOFF DATE:    JULY 30, 1997                          GROUP:          INV #813
REPORT DATE:    AUGUST 25, 1997                        SERIES:         1988-1

SECTION 1 - MORTGAGE POOL ADMINISTRATION

<TABLE>
<CAPTION>
====================================================================================================
                                         # OF          P & I             POOL             POOL
POOL ACTIVITY                           LOANS        CONSTANT          INTEREST         PRINCIPAL
====================================================================================================
<S>                               <C>               <C>                <C>             <C>
Beginning Balance                          64       75,109.72                           8,870,396.29
                                  ------------------------------------------------------------------
Installments                                                           65,023.30           15,184,91
                                  ------------------------------------------------------------------
Curtailments                                                                                8,293.73
                                  ------------------------------------------------------------------
Liquidations                                0             0.00              0.00                0.00
                                  ------------------------------------------------------------------
Other                                                     0.00              8.80                0.00
                                  ------------------------------------------------------------------
Ending Balance                             64        75,109.72                          8,846,917.65
                                  ==================================================================
                                                     SERVICING FEE:                         2,960.66
                                                                                        ------------
</TABLE>

<TABLE>
<CAPTION>
                      TOTAL
DELINQUENTS            DELQ         30 DAYS         60 DAYS           90 DAYS +             F/C
===============================================================================================
<S>             <C>              <C>           <C>                 <C>                  <C>
# Of Loans                4               4               0                 0                 0
                -------------------------------------------------------------------------------
Princ Bal        600,165.84      600,165.84            0.00              0.00              0.00
                -------------------------------------------------------------------------------
% Delq                 6.78%           6.78%           0.00%             0.00%            0.00%
                -------------------------------------------------------------------------------

                                                   INTEREST         PRINCIPAL              S/F

Amount Prepaid                                    11,215.97          2,639.32            512.07
                                               ------------------------------------------------
Amount Delinquent                                  4,110.38            947.95            187.55
                                               ------------------------------------------------
</TABLE>

SECTION 1-A - SCHEDULED MORTGAGE INSTALLMENTS

================================================================================
WAM = Nov-2017                        NOTE RATE = (                   8.235001%)
WAMG = 2.5000

<TABLE>
<CAPTION>
  A. CONSTANT                      B. SCHEDULED                     C. SCHED.
                                      INTEREST                         PRINCIPAL
- --------------------------------------------------------------------------------
<S>                                <C>                              <C>      
    75,109.72                         60,780.50                        14,329.22
- --------------------------------------------------------------------------------
</TABLE>


                                     Page 1

<PAGE>   2

SECTION 2 - SCHEDULE OF PAYMENTS                1988-1            JULY 30, 1997

<TABLE>
<CAPTION>
====================================================================================================
   A. SCHEDULED                   B. ADDITIONAL    C.  PREPAIDS        D. OTHERS        E. TOTAL
      PRINCIPAL                      PRINCIPAL         IN FULL                             PRINCIPAL
====================================================================================================
<S>                               <C>              <C>                 <C>          <C>       
      14,329.22                        8,293.73            0.00             8.80           22,631.75
====================================================================================================
F. Int. Distribution Amount (Yield                                      7.849679%)         57,936.53
                                                                                     ---------------
G. Total Distribution Amount (Principal & Interest)                                        80,568.28
                                                                                     ===============
H. Certificates A-1 Distribution
                                   (E x 91.00%)  Princ:                20,594.90
                                   (E x 91.00%)  Int:                  52,722.24
                                                                                     ---------------
                                                                                           73,317.14
                                                                                     ===============
I. Certificate B Distribution (G x 8.6%)
                                    (E x 9.00%)  Princ:                 2,036.85
                                    (F x 9.00%)  Int:                   5,214.29
                                                                                     ---------------
                                                                                            7,251.14
                                                                                     ===============
SECTION 3 - PRINCIPAL AMOUNT OF SECURITIES
====================================================================================================
A. Beginning Aggregate Security Balance                                                 8,856,901.91
                                                                                     ---------------
B. Principal Distribution Amount                                                           22,631.75
                                                                                     ---------------
C. Ending Aggregate Security Balance                                                    8,834,270.16
                                                                                     ===============

MEMO ITEM
====================================================================================================
A. Book Value Of Real Estate Acquired Through Foreclosure                                  N/A
                                                                                     ---------------
B. Ending Aggregate Security Balance Of The Class A
   Certificates (91.00% of Security Balance)                                            8,039,185.44
                                                                                     ---------------
C. Ending Aggregate Security Balance Of The Class B
   Certificates (9.00% of Security Balance)                                               795,084.71
                                                                                     ---------------
</TABLE>

All distributions required to be made by First Interstate Bank for the reporting
month of: JULY 1997                        Payable: AUG 25, 97 have been made.

Certified by:


/s/ KATHY MUELLER
- ----------------------------------
Kathy Mueller, Supervisor
Investor Reporting Department



                                     Page 2

<PAGE>   3

<TABLE>
<CAPTION>
================================================================================
           SUBORDINATED AMOUNT                   1988-1            JULY 30, 1997
================================================================================
                                                 PERCENT              DOLLARS
<S>                                            <C>              <C>
 A.  BEGINNING BALANCE                               9.00           5,321,575.06
                                               ----------       ----------------
 B.  AGGREGATE LOSSES                                                 124,685.11
                                               ----------       ----------------
 C.  SCHEDULED ADJUSTMENTS PER
     POOLING & SERVICING AGREEMENT                                          0.00
                                               ----------       ----------------
 D.  ENDING BALANCE                                  9.00           6,554,146.24
================================================================================

RESERVE FUND

 A.  BEGINNING BALANCE                                              5,930,810.27
                                                                 ---------------
 B.  (+) INTEREST CREDITED                                                  0.00
                                                                 ---------------
 C.  (-) INTEREST WITHDRAWN                                                 0.00
                                                                 ---------------
 D.  (+) CLASS B PRINCIPAL (UNTIL LIMITS ARE REACHED)                   2,036.85
                                                                 ---------------
 E.  (+) CLASS B INTEREST (UNTIL LIMITS ARE REACHED)                    5,214.29
                                                                 ---------------
 F.  (-) TRANSFER TO CLASS A
                                                                 ---------------

 G.  SUB TOTAL                                                      5,938,061.41
================================================================================

 NOTES:

   INITIAL DEPOSIT (UNRETURNED TO SELLER)                                   0.00
                                                                 ---------------
   THREE CURRENT HIGHEST PRINCIPAL BALANCES                         1,113,048.15
                                                                 ---------------
   SPECIFIED RESERVE FUND:                                          5,932,923.35
                                                                 ---------------
   CLASS B  PRIN & INT  TRANSFER TO REPUBLIC FEDERAL:                   5,138.06
    (equal to amt over Specified Reserve Fund Limit              ---------------
 
- --------------------------------------------------------------------------------
 H.  ENDING BALANCE                                                 5,932,923.35
================================================================================
</TABLE>



                                     Page 3

<PAGE>   4

<TABLE>
<CAPTION>
                    RECONCILIATION OF POOL PRINCIPAL BALANCE
                         WITH SECURITY PRINCIPAL BALANCE
                                  POOL NO. 813

                <S>                                    <C>
                                                       8,846,917.65
                (+)                                        2,639.32
                (-)                                          947.95
                (-)                                       14,329.22
                (+)                                            0.00
                (-)                                            8.80

                                                       8,834,271.00

                                                       8,834,270.16

                                                               0.84

                   RECONCILIATION OF CUSTODIAL ACCOUNT BALANCE

                (+)                                       13,855.29
                (-)                                          512.07
                (-)                                        5,058.33
                (+)                                          187.55
                (+)                                        8,293.73
                (+)                                            8.80
                (+)                                            0.40
                (+)                                            0.00
                (+)                                            0.00
                (-)                                            0.00

                                                          16,774.57

                                                          16,826.58

                                                              52.01 
</TABLE>


                                     Page 4

<PAGE>   5

                          SENIOR SUBORDINATED PASS-THRU
                          SPECIFIED RESERVE FUND LIMITS

<TABLE>
<CAPTION>
REPORTING MONTH:  7/31/97                                              1988-1
                                                                    -----------
<S>                                                                 <C>
      (A)       TERM                                                         30
      (B)       LOAN TYPE                                                  ARMS
      (C)       CLASS A %                                                91.00%
      (D)       CLASS B %                                                 9.00%
      (E)       ORIGINAL AGGREGATE BALANCE                           74,209,237
      (F)       CURRENT UPB                                           8,846,918
      (G)       RULE CHANGE DATE                                       06/01/98
      (H)       ORIGINAL CUTOFF DATE                                   05/01/88

SUBORDINATED CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)

      (I)       PREVIOUS SUBORDINATED AMT                             6,678,831
      (J)       CLASS B % OF CURR UPB (E)x(D)                         6,678,831
      (K)       AGGREGATE LOSSES                                        124,685
      (L)       SUB AMT UNTIL RULE CHANGE DATE (J-K)                  6,554,146

RESERVE CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)

      (M)       ADVANCE RESERVE                                         175,000
      (N)       1% OF CURR AGG BAL (E) x .01                            742,092
      (O)       O.S. UPB CLASS B (F)x(D)                                796,223
      (P)       SUBORD AMT - OS UBP CLASS B (L)-(O)                   5,757,923
      (Q)       ADV RES + GRT'R OF: (N) or (P)                        5,932,923
                                                                   ------------

MINIMUM RESERVE FUND

      (R)       O.S. UPB 3 LARGEST LNS                                1,113,048
      (S)       SUBORDINATED AMOUNT + ADV RES (M)+(R)                 1,288,048
                                                                   ------------
      (T)       SPECIFIED RESERVE FUND = > OF (Q)or(S)                5,932,923
                                                                   ============
      (U)       CURRENT RESERVE FUND BALANCE                          5,932,923

STATUS OF INITIAL DEPOSIT

      (V)       ORIGINAL INITIAL DEPOSIT                                175,000
</TABLE>

<TABLE>
<CAPTION>
                                      RULES
                                      -----
<S>                                         <C>
 SUBORDINATED AMOUNT                        AFTER RULE CHANGE DATE: SUB AMOUNT =
 UNTIL RULE CHANGE DATE: SUB AMOUNT =       LESSER OF A: PREVIOUS SUB AMOUNT AND
 CLASS B % OF ORIG AGGR BAL                               B: THE SUM OF
 LESS AGGR LOSSES SINCE ORIG CUTOFF DATE                     (x) CLASS B % OF CURRENT UPB
                                                             (y) 6/1998 80% OF (A)-(x)   }
                                                                 6/1999 60% OF (A)-(x)   }
                                                                 6/2000 40% OF (A)-(x)   } REDUCTION SCHEDULE
                                                                 6/2001 20% OF (A)-(x)   }
                                                                 6/2002+ 0% OF (A)-(x)   }
                                             HOWEVER:
                                             (B) CANNOT < SUM OF O.S. UPB 3 LARGEST LOANS
</TABLE>

IMPORTANT:

     IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE 90 DAY+ DELINQUENCIES
- -4% OF TOTAL LOAN COUNT FOR 2 CONSECUTIVE MONTHS, THE REDUCTION FOR THAT MONTH
WILL NOT TAKE PLACE.

     IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE THE ABOVE RULE IS NOT
BROKEN, REDUCTIONS WILL TAKE PLACE AS SCHEDULED.

      WITH THE CONSENT OF THE RATING AGENCY & SO LONG AS SUCH ACTION DOES NOT
RESULT IN THE DOWNGRADING OF THE RATING THEN ASSIGNED TO CLASS A CERTS BY THE
RATING AGENCY, THE SUB AMT MAY BE REDUCED EARLIER THAN SCHEDULED.

================================================================================
SPECIFIED RESERVE FUND

UNTIL RULE CHANGE DATE: SPECIFIED RESERVE FUND =

             THE SUM OF (i) ADVANCE RESERVE
             AND       (ii) THE GREATER OF
                                       (a) 1% OF ORIGINAL AGGR BAL
                                       (b) SUB AMOUNT - O.S. BAL CLASS B
HOWEVER;
(ii) CANNOT BE < THE SMALLER OF: (a) THE O.S. UPB 3 LRGST LOANS ....
                                              (b) SUB AMOUNT
                   NOR >: SUBORDINATED AMOUNT
WHEN SUB AMOUNT = ZERO, SPECIFIED RESERVE FUND = ADVANCE RESERVE>

CONVERTIBLE OPTION - OPTION OF MORTGAGOR TO CONVERT FROM ARM TO FIXED WITHIN 12
TO 60 MONTH PERIOD FROM ORIGIN. LOAN MUST BE REPURCHASED ON LAST DAY OF MONTH OF
CONVERSION.

                                     Page 5

<PAGE>   1
                                                                EXHIBIT 1.5


                          WEYERHAEUSER MORTGAGE COMPANY
                       MORTGAGE INVESTOR SERVICING REPORT


CUTOFF DATE:   JULY 30, 1997                       GROUP:         INV #814

REPORT DATE:   AUGUST 25, 1997                     SERIES:        1988-2


SECTION 1 - MORTGAGE POOL ADMINISTRATION

<TABLE>
<CAPTION>
================================================================================================
                                     # OF         P & I            POOL              POOL
POOL ACTIVITY                        LOANS       CONSTANT        INTEREST          PRINCIPAL
================================================================================================
<S>                             <C>             <C>              <C>              <C>
Beginning Balance                     9          19,471.03                          935,336.89
                                ----------------------------------------------------------------
Installments                                                       7,913.43          11,557.60
                                ----------------------------------------------------------------
Curtailments                                                                            162.01
                                ----------------------------------------------------------------
Liquidations                          0               0.00             0.00               0.00
                                ----------------------------------------------------------------
Other                                                 0.00             0.10               0.00
                                ----------------------------------------------------------------
Ending Balance                        9          19,471.03                          923,617.28
                                ================================================================
                                                            SERVICING FEE:              898.41
                                                                             -------------------
</TABLE>

<TABLE>
<CAPTION>
                   TOTAL
DELINQUENTS         DELQ          30 DAYS       60 DAYS        90 DAYS +            F/C
================================================================================================
<S>             <C>              <C>              <C>              <C>
# Of Loans             0             0               0                0                  0
               ---------------------------------------------------------------------------------
Princ Bal           0.00          0.00            0.00             0.00               0.00
               ---------------------------------------------------------------------------------
% Delq              0.00%         0.00%           0.00%            0.00%              0.00%
               ---------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
                                                INTEREST        PRINCIPAL                S/F
<S>                                          <C>              <C>                  <C>   
Amount Prepaid                                  1,612.71         3,401.28              92.40
                                            ----------------------------------------------------
Amount Delinquent                                   0.00             0.00               0.00
                                            ----------------------------------------------------
</TABLE>

SECTION 1-A - SCHEDULED MORTGAGE INSTALLMENTS
================================================================================
WAM = Sep-02                                NOTE RATE = (        10.151120%)

<TABLE>
<CAPTION>
 A. CONSTANT                                B. SCHEDULED                       C. SCHED.
                                               INTEREST                         PRINCIPAL
- ------------------------------------------------------------------------------------------------
<S>                                         <C>                               <C>
   19,471.03                                    7,843.18                        11,627.85
- ------------------------------------------------------------------------------------------------
</TABLE>

                                     Page 1


<PAGE>   2
SECTION 2 - SCHEDULE OF PAYMENTS                 1988-2           JULY 30, 1997

<TABLE>
<CAPTION>
================================================================================================
   A. SCHEDULED                 B. ADDITIONAL  C. PREPAIDS       D. OTHERS        E. TOTAL
      PRINCIPAL                    PRINCIPAL      IN FULL                            PRINCIPAL
================================================================================================
<S>                             <C>             <C>              <C>                 <C>
     11,627.85                       162.01           0.00          0.00           11.789.86
================================================================================================
F. Int. Distribution Amount (Yield               9.00010%)                          6,953.85
                                                                             -------------------
G. Total Distribution Amount (Principal & Interest)                                18,743.71
                                                                             ===================
H. Certificates A-1 Distribution
                                 (E x 95.5%) Princ:             11,259.32
                                 (E x 95.5%) Int:                6,640.93
                                                                             -------------------
                                                                                   17,900.25
                                                                             ===================
I. Certificate B Distribution (G x 8.6%)
                                  (E x 4.5%) Princ:                530.54
                                  (F x 4.5%) Int:                  312.92 
                                                                             -------------------
                                                                                      843.46
                                                                             ===================
SECTION 3 - PRINCIPAL AMOUNT OF SECURITIES
================================================================================================
A. Beginning Aggregate Security Balance                                           927,169.72
                                                                             -------------------
B. Principal Distribution Amount                                                   11,789.86
                                                                             -------------------
C. Ending Aggregate Security Balance                                              915,379.86
                                                                             ===================
MEMO ITEM
================================================================================================
A. Book Value Of Real Estate Acquired Through Foreclosure                                N/A
                                                                             -------------------
B. Ending Aggregate Security Balance Of The Class A
   Certificates (91.25% of Security Balance)                                      874,187.03
                                                                             -------------------
C. Ending Aggregate Security Balance Of The Class B
   Certificates (8.75% of Security Balance)                                        41,192.83
                                                                             -------------------
</TABLE>



All distributions required to be made by First Interstate Bank for the reporting
month of: JULY 97                Payable: AUG 25, 97 have been made.

Certified by:

/s/ KATHY MUELLER
- --------------------------------
Kathy Mueller, Supervisor      
Investor Reporting Department



                                     Page 2


<PAGE>   3
<TABLE>
<CAPTION>
===============================================================================
                    SUBORDINATED AMOUNT         1988-2            JULY 30, 1997
===============================================================================
                                                PERCENT            DOLLARS
<S>                                             <C>             <C>       
 A.  BEGINNING BALANCE                               4.5             588,037.94
                                            -----------------------------------
 B.  AGGREGATE LOSSES                                                      0.00
                                            -----------------------------------
 C.  SCHEDULED ADJUSTMENTS PER
     POOLING & SERVICING AGREEMENT                                (2,470,450.35)
                                            -----------------------------------
 D.  ENDING BALANCE                                  4.5             162,968.00
===============================================================================
RESERVE FUND

 A.  BEGINNING BALANCE                                               162,968.00
                                                              -----------------
 B.  (+) INTEREST CREDITED                                                 0.00
                                                              -----------------
 C.  (-) INTEREST WITHDRAWN                                                0.00
                                                              -----------------
 D.  (+) CLASS B PRINCIPAL (UNTIL LIMITS ARE REACHED)                    530.54
                                                              -----------------
 E.  (+) CLASS B INTEREST (UNTIL LIMITS ARE REACHED)                     312.92
                                                              -----------------
 F.  (-) TRANSFER TO CLASS A
                                                              -----------------
 G.  SUB TOTAL                                                       163,811.46
===============================================================================
 NOTES:

   INITIAL DEPOSIT (UNRETURNED TO SELLER)                                  0.00
                                                              -----------------
   THREE CURRENT HIGHEST PRINCIPAL BALANCES                          450,071.65
                                                              -----------------
   SPECIFIED RESERVE FUND:                                           162,968.00
                                                              -----------------
   CLASS B  PRIN & INT  TRANSFER TO REPUBLIC FEDERAL:                    843.46
    (equal to amt over Specified Reserve Fund Limit)          -----------------

===============================================================================
 H.  ENDING BALANCE                                                  162,968.00
===============================================================================
</TABLE>


                                     Page 3

<PAGE>   4
<TABLE>
<CAPTION>
                    RECONCILIATION OF POOL PRINCIPAL BALANCE
                         WITH SECURITY PRINCIPAL BALANCE
                                  POOL NO. 814
               <S>                                <C>         
                                                    923,617.28
               (+)                                    3,401.28
               (-)                                        0.00
               (-)                                   11,627.85
               (+)                                        0.00
               (-)                                        0.00

                                                    915,390.71

                                                    915,379.86

                                                         10.85

                RECONCILIATION OF CUSTODIAL ACCOUNT BALANCE

               (+)                                    5,013.99
               (-)                                       92.40
               (-)                                        0.00
               (+)                                        0.00
               (+)                                      162.01
               (+)                                        0.00
               (+)                                        0.00
               (+)                                        0.00
               (+)                                        0.00
               (-)                                        0.00

                                                      5,083.60

                                                      5,083.58

                                                         (0.02)
</TABLE>

                                     Page 4


<PAGE>   5
                          SENIOR SUBORDINATED PASS-THRU
                          SPECIFIED RESERVE FUND LIMITS

<TABLE>
<CAPTION>
REPORTING MONTH:  7/31/97                                           1988-2
                                                                  ----------
<S>                                                               <C>
     (A)       TERM                                                       30
     (B)       LOAN TYPE                                               FIXED
     (C)       CLASS A %                                              95.50%
     (D)       CLASS B %                                               4.50%
     (E)       ORIGINAL AGGREGATE BALANCE                         58,520,409
     (F)       CURRENT UPB                                           923,617
     (G)       RULE CHANGE DATE                                     08/01/93
     (H)       ORIGINAL CUTOFF DATE                                 07/01/88

SUBORDINATED CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)

     (I)       PREVIOUS SUBORDINATED AMT                             588,038
     (J)       CLASS B % OF CURR UPB (E)x(D)                          41,563
     (K)       AGGREGATE LOSSES                                            0
     (L)       SUB AMT UNTIL RULE CHANGE DATE (J-K)                  162,968

RESERVE CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)

     (M)       ADVANCE RESERVE                                       188,000
     (N)       1% OF CURR AGG BAL (E) x .01                            9,236
     (O)       O.S. UPB CLASS B (F)x(D)                               41,563
     (P)       SUBORD AMT - OS UBP CLASS B (L)-(O)                   121,405
     (Q)       ADV RES + GRT'R OF: (N) or (P)                        309,405
                                                                  ----------

MINIMUM RESERVE FUND

     (R)       O.S. UPB 3 LARGEST LNS                                450,072
     (S)       SUBORDINATED AMOUNT (L)                               162,968
                                                                  ----------
     (T)       SPECIFIED RESERVE FUND = > OF (R)or(S)                162,968
                                                                  ==========
     (U)       CURRENT RESERVE FUND BALANCE                          162,968

STATUS OF INITIAL DEPOSIT

     (V)       ORIGINAL INITIAL DEPOSIT                              160,000
</TABLE>

                                      RULES
                                      -----
<TABLE>
<S>                                                                   <C>
     SUBORDINATED AMOUNT                                              AFTER RULE CHANGE DATE: SUB AMOUNT =
     UNTIL RULE CHANGE DATE: SUB AMOUNT =                             LESSER OF A: PREVIOUS SUB AMOUNT AND
     CLASS B % OF ORIG AGGR BAL                                            B: THE SUM OF
     LESS AGGR LOSSES SINCE ORIG CUTOFF DATE                                  (x) CLASS B % OF CURRENT UPB
                                                                              (y) 8/1993 80% OF (A)-(x)     }
                                                                                  8/1994 60% OF (A)-(x)     }
                                                                                  8/1995 40% OF (A)-(x)     } REDUCTION SCHEDULE
                                                                                  8/1996 20% OF (A)-(x)     }
                                                                                  8/1997+ 0% OF (A)-(x)     }
</TABLE>

HOWEVER:

(B) CANNOT < SUM OF O.S. UPB 3 LARGEST LOANS

IMPORTANT:

         IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE 90 DAY+
DELINQUENCIES -3% OF TOTAL LOAN COUNT FOR 2 CONSECUTIVE MONTHS, THE REDUCTION
FOR THAT MONTH WILL NOT TAKE PLACE.

         IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE THE ABOVE RULE IS
NOT BROKEN, REDUCTIONS WILL TAKE PLACE AS SCHEDULED.

         WITH THE CONSENT OF THE RATING AGENCY & SO LONG AS SUCH ACTION DOES NOT
RESULT IN THE DOWNGRADING OF THE RATING THEN ASSIGNED TO THE CLASS A CERTS BY
THE RATING AGENCY, THE SUB AMT MAY BE REDUCED EARLIER THAN SCHEDULED.

================================================================================

SPECIFIED RESERVE FUND

UNTIL RULE CHANGE DATE: SPECIFIED RESERVE FUND =

        THE SUM OF (i) ADVANCE RESERVE        THE SUM OF (i) ADVANCE RESERVE
        AND       (ii) THE GREATER OF         AND       (ii) THE GREATER OF

        (a) 1% OF ORIGINAL AGGR BAL           (a) 1% OF CURRENT O.S. AGGR BAL
        (b) SUB AMOUNT - O.S. BAL CLASS B     (b) SUB AMOUNT - O.S. BAL CLASS B

HOWEVER;

(ii) CANNOT BE < THE SMALLER OF: (a) THE O.S. UPB 3 LRGST LOANS ....
                                 (b) SUB AMOUNT

                          NOR >: SUBORDINATED AMOUNT

WHEN SUB AMOUNT = ZERO, SPECIFIED RESERVE FUND = ADVANCE RESERVE>

                                     Page 5




<PAGE>   1
                                                                    EXHIBIT 1.6



                          WEYERHAEUSER MORTGAGE COMPANY
                       MORTGAGE INVESTOR SERVICING REPORT


CUTOFF DATE:   JULY 30, 1997                   GROUP:          INV #815

REPORT DATE:   AUGUST 25, 1997                 SERIES:        1988-3


SECTION 1 - MORTGAGE POOL ADMINISTRATION

<TABLE>
<CAPTION>
================================================================================================
                                      # OF         P & I           POOL              POOL
POOL ACTIVITY                        LOANS       CONSTANT        INTEREST          PRINCIPAL
================================================================================================
<S>                              <C>             <C>             <C>              <C>         
Beginning Balance                      8          14,906.18                        1,536,678.26
                                ----------------------------------------------------------------
Installments                                                       11,032.15           1,498.24
                                ----------------------------------------------------------------
Curtailments                                                                              57.84
                                ----------------------------------------------------------------
Liquidations                           0               0.00             0.00               0.00
                                ----------------------------------------------------------------
Other                                                  0.00             0.00               0.00
                                ----------------------------------------------------------------
Ending Balance                         8          14,906.18                        1,535,122.18
                                ================================================================
                                                            SERVICING FEE:               516.97
                                                                             -------------------
</TABLE>

<TABLE>
<CAPTION>
                    TOTAL
DELINQUENTS          DELQ         30 DAYS        60 DAYS         90 DAYS +             F/C
================================================================================================
<S>             <C>             <C>               <C>               <C>                 <C>
# Of Loans                1             1               0                0                  0
               ---------------------------------------------------------------------------------
Princ Bal        174,231.74    174,231.74            0.00             0.00               0.00
               ---------------------------------------------------------------------------------
% Delq                11.35%        11.35%           0.00%            0.00%              0.00%
               ---------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
                                                    INTEREST        PRINCIPAL              S/F
<S>                                              <C>                <C>                <C>   
Amount Prepaid                                          0.00             0.00              0.00
                                            ----------------------------------------------------
Amount Delinquent                                   1,470.08           206.02             54.45
                                            ----------------------------------------------------
</TABLE>

SECTION 1-A - SCHEDULED MORTGAGE INSTALLMENTS
================================================================================
WAM = Apr-2018                              NOTE RATE = (        10.251970%)

<TABLE>
<CAPTION>
 A. CONSTANT                                    B. SCHEDULED                       C. SCHED.
                                                   INTEREST                           PRINCIPAL
- ------------------------------------------------------------------------------------------------
<S>                                             <C>                                 <C>     
 14,906.18                                        13,113.75                           1,792.43
- ------------------------------------------------------------------------------------------------
</TABLE>

                                     Page 1

<PAGE>   2
SECTION 2 - SCHEDULE OF PAYMENTS                  1988-3         JULY 30, 1997
<TABLE>
<CAPTION>
================================================================================================
   A. SCHEDULED                 B. ADDITIONAL       C. PREPAIDS      D. OTHERS        E. TOTAL
      PRINCIPAL                    PRINCIPAL           IN FULL                        PRINCIPAL
================================================================================================
<S>                             <C>                 <C>              <C>           <C>     
      1,792.43                        57.84            0.00             0.00            1,850.27
================================================================================================
F. Int. Distribution Amount (Yield              9.75001%)                              12,471.67
                                                                                    ------------
G. Total Distribution Amount (Principal & Interest)                                    14,321.94
                                                                                    ============
H. Certificates A-1 Distribution
                                 (E x 93.0%) Princ:                 1,720.75
                                 (E x 93.0%) Int:                  11,598.65
                                                                                    ------------
                                                                                       13,319.40
                                                                                    ============
I. Certificate B Distribution (G x 8.6%)
                                  (E x 7.0%) Princ:                   129.52
                                  (F x 7.0%) Int:                     873.02
                                                                                    ------------
                                                                                        1,002.54
                                                                                    ============
SECTION 3 - PRINCIPAL AMOUNT OF SECURITIES
================================================================================================
A. Beginning Aggregate Security Balance                                             1,534,973.12
                                                                                    ------------
B. Principal Distribution Amount                                                        1,850.27
                                                                                    ------------
C. Ending Aggregate Security Balance                                                1,533,122.85
                                                                                    ============
MEMO ITEM
================================================================================================
A. Book Value Of Real Estate Acquired Through Foreclosure                                    N/A
                                                                                    ------------
B. Ending Aggregate Security Balance Of The Class A
   Certificates (93.0% of Security Balance)                                         1,425,804.64
                                                                                    ------------
C. Ending Aggregate Security Balance Of The Class B
   Certificates (7.00% of Security Balance)                                           107,318.21
                                                                                    ------------
</TABLE>

All distributions required to be made by First Interstate Bank for the reporting
month of: JULY 97                Payable: AUG 25, 97 have been made.

Certified by:

/s/ KATHY MUELLER  
- --------------------------------
Kathy Mueller, Supervisor   
Investor Reporting Department

                                     Page 2

<PAGE>   3
<TABLE>
<CAPTION>
================================================================================
           SUBORDINATED AMOUNT                 1988-3              JULY 30, 1997
================================================================================
                                               PERCENT               DOLLARS
<S>                                          <C>                 <C>         
 A.  BEGINNING BALANCE                           7.00              1,132,864.97
                                            ------------------------------------
 B.  AGGREGATE LOSSES                                                 94,394.03
                                            ------------------------------------
 C.  SCHEDULED ADJUSTMENTS PER
     POOLING & SERVICING AGREEMENT                                (1,590,401.00)
                                            ------------------------------------
 D.  ENDING BALANCE                              7.00                727,752.00
================================================================================

RESERVE FUND

 A.  BEGINNING BALANCE                                               727,752.00
                                                               -----------------
 B.  (+) INTEREST CREDITED                                                 0.00
                                                               -----------------
 C.  (-) INTEREST WITHDRAWN                                                0.00
                                                               -----------------
 D.  (+) CLASS B PRINCIPAL (UNTIL LIMITS ARE REACHED)                    129.52
                                                               -----------------
 E.  (+) CLASS B INTEREST (UNTIL LIMITS ARE REACHED)                     873.02
                                                               -----------------
 F.  (-) TRANSFER TO WMC                                                   0.00
                                                               -----------------
 G.  SUB TOTAL                                                       728,754.54
================================================================================

 NOTES:

   INITIAL DEPOSIT (UNRETURNED TO SELLER)                                  0.00
                                                               -----------------
   THREE CURRENT HIGHEST PRINCIPAL BALANCES                          923,697.71
                                                               -----------------
   SPECIFIED RESERVE FUND:                                           727,752.00
                                                               -----------------
   CLASS B  PRIN & INT  TRANSFER TO REPUBLIC FEDERAL:                  1,002.54
    (equal to amt over Specified Reserve Fund Limit)           -----------------

================================================================================
 H.  ENDING BALANCE                                                  727,752.00
================================================================================
</TABLE>

                                     Page 3

<PAGE>   4
<TABLE>
<CAPTION>
                    RECONCILIATION OF POOL PRINCIPAL BALANCE
                         WITH SECURITY PRINCIPAL BALANCE
                                  POOL NO. 815
               <S>                               <C>         
                                                  1,535,122.18
               (+)                                        0.00
               (-)                                      206.02
               (-)                                    1,792.43 
               (+)                                        0.00
               (-)                                        0.00

                                                  1,533,123.73

                                                  1,533,122.85

                                                          0.88


                RECONCILIATION OF CUSTODIAL ACCOUNT BALANCE

               (+)                                        0.00
               (-)                                        0.00
               (-)                                    1,676.10
               (+)                                       54.45
               (+)                                       57.84
               (+)                                        0.49
               (+)                                        0.02
               (+)                                        0.00
               (+)                                        0.00
               (-)                                        0.00

                                                     (1,563.34)

                                                     (1,562.83)

                                                          0.51 
</TABLE>

                                     Page 4
<PAGE>   5
                            SENIOR SUBORDINATED PASS-THRU
                             SPECIFIED RESERVE FUND LIMITS

<TABLE>
<CAPTION>
REPORTING MONTH:  7/31/97                                           1988-3
                                                                  ----------
<S>                                                               <C>
     (A)       TERM                                                       30
     (B)       LOAN TYPE                                               FIXED
     (C)       CLASS A %                                              93.00%
     (D)       CLASS B %                                               7.00%
     (E)       ORIGINAL AGGREGATE BALANCE                         80,402,379
     (F)       CURRENT UPB                                         1,535,122
     (G)       RULE CHANGE DATE                                     11/01/93
     (H)       ORIGINAL CUTOFF DATE                                 11/01/88

SUBORDINATED CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)

     (I)       PREVIOUS SUBORDINATED AMT                           1,132,865
     (J)       CLASS B % OF CURR UPB (F)x(D)                         107,459
     (K)       AGGREGATE LOSSES                                       94,394
     (L)       SUB AMT UNTIL RULE CHANGE DATE (J-K)                  727,752

RESERVE CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)

     (M)       ADVANCE RESERVE                                       172,000
     (N)       1% OF CURR AGG BAL (E) x .01                           15,351
     (O)       O.S. UPB CLASS B (F)x(D)                              107,459
     (P)       SUBORD AMT - OS UBP CLASS B (L)-(O)                   620,293
     (Q)       ADV RES + GRT'R OF: (N) or (P)                        792,293
                                                                  ----------

MINIMUM RESERVE FUND

     (R)       O.S. UPB 3 LARGEST LNS                                923,698
     (S)       SUBORDINATED AMOUNT + ADV RES (M)+(R)                 727,752
                                                                  ----------
     (T)       SPECIFIED RESERVE FUND = > OF (R)or(S)                727,752
                                                                  ==========
     (U)       CURRENT RESERVE FUND BALANCE                          727,752

STATUS OF INITIAL DEPOSIT

     (V)       ORIGINAL INITIAL DEPOSIT                              100,000
</TABLE>

                                      RULES
                                      -----

<TABLE>
<S>                                                                   <C>
     SUBORDINATED AMOUNT                                              AFTER RULE CHANGE DATE: SUB AMOUNT =
     UNTIL RULE CHANGE DATE: SUB AMOUNT =                             LESSER OF A: PREVIOUS SUB AMOUNT AND
     CLASS B % OF ORIG AGGR BAL                                            B: THE SUM OF
     LESS AGGR LOSSES SINCE ORIG CUTOFF DATE                                  (x) CLASS B % OF CURRENT UPB
                                                                              (y) 11/1993 80% OF (A)-(x)     }
                                                                                  11/1994 60% OF (A)-(x)     }
                                                                                  11/1995 40% OF (A)-(x)     } REDUCTION SCHEDULE
                                                                                  11/1996 20% OF (A)-(x)     }
                                                                                  11/1997+ 0% OF (A)-(x)     }
</TABLE>


HOWEVER:

(B) CANNOT < SUM OF O.S. UPB 3 LARGEST LOANS

IMPORTANT:

         IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE 90 DAY+
DELINQUENCIES -7% OF TOTAL LOAN COUNT FOR 2 CONSECUTIVE MONTHS, THE REDUCTION
FOR THAT MONTH WILL NOT TAKE PLACE.

         IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE THE ABOVE RULE IS
NOT BROKEN, REDUCTIONS WILL TAKE PLACE AS SCHEDULED.

================================================================================

SPECIFIED RESERVE FUND

UNTIL RULE CHANGE DATE: SPECIFIED RESERVE FUND =

        THE SUM OF (i) ADVANCE RESERVE            THE SUM OF (i) ADVANCE RESERVE
        AND       (ii) THE GREATER OF             AND       (ii) THE GREATER OF

        (a) 1% OF ORIGINAL AGGR BAL            (a) 1% OF CURRENT O.S. AGGR BAL
        (b) SUB AMOUNT - O.S. BAL CLASS B      (b) SUB AMOUNT - O.S. BAL CLASS B

HOWEVER;

(ii) CANNOT BE < THE SMALLER OF:       (a) THE O.S. UPB 3 LRGST LOANS ....
                                       (b) SUB AMOUNT

                           NOR >: SUBORDINATED AMOUNT

        WHEN SUB AMOUNT = ZERO, SPECIFIED RESERVE FUND = ADVANCE RESERVE>


                                     Page 5


<PAGE>   1
                                                                     EXHIBIT 1.7


                       MORTGAGE INVESTOR SERVICING REPORT


CUTOFF DATE:   JULY 30, 1997                       GROUP:         INV #816

REPORT DATE:   AUGUST 25, 1997                     SERIES:        1989-1


SECTION 1 - MORTGAGE POOL ADMINISTRATION
<TABLE>
<CAPTION>
=================================================================================================
                                       # OF         P & I           POOL              POOL
POOL ACTIVITY                         LOANS       CONSTANT        INTEREST          PRINCIPAL
=================================================================================================
<S>                                 <C>          <C>             <C>               <C>
Beginning Balance                       10        16,496.53                        1,604,865,41
                                -----------------------------------------------------------------
Installments                                                       15,728.67           1,868.64
                                -----------------------------------------------------------------
Curtailments                                                                             721.10
                                -----------------------------------------------------------------
Liquidations                             1           714.25         2,591.71          70,781.83
                                -----------------------------------------------------------------
Other                                                  0.00             0.00               0.00
                                -----------------------------------------------------------------
Ending Balance                           9        15,782.28                        1,531,493.84
                                =================================================================
                                                             SERVICING FEE:              703.02
                                                                              -------------------
</TABLE>

<TABLE>
<CAPTION>
                    TOTAL
DELINQUENTS           DELQ        30 DAYS         60 DAYS         90 DAYS +             F/C
=================================================================================================
<S>             <C>             <C>            <C>                <C>                <C>
# Of Loans                 2             0                1                1                  0
               ----------------------------------------------------------------------------------
Princ Bal         365,791.71          0.00       104,234.92       261,556.79               0.00
               ----------------------------------------------------------------------------------
% Delq                 23.88%         0.00%            6.81%           17.08%              0.00%
               ----------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
                                                    INTEREST        PRINCIPAL               S/F
<S>                                              <C>                <C>                 <C>  
Amount Prepaid                                      4,754.03           638.98             173.21
                                             ----------------------------------------------------
Amount Delinquent                                   9,548.52           885.50             865.24
                                             ----------------------------------------------------
</TABLE>

SECTION 1-A - SCHEDULED MORTGAGE INSTALLMENTS
================================================================================
WAM = Oct-2018                               NOTE RATE = (           11.052950%)

<TABLE>
<CAPTION>
 A. CONSTANT                                 B. SCHEDULED                     C. SCHED.
                                                INTEREST                         PRINCIPAL
- -------------------------------------------------------------------------------------------------
<S>                                          <C>                               <C>     
   16,496.53                                   14,760.77                         1,735.76
- -------------------------------------------------------------------------------------------------
</TABLE>

                                     Page 1

<PAGE>   2
SECTION 2 - SCHEDULE OF PAYMENTS                1989-1           JULY 30, 1997
<TABLE>
<CAPTION>
=================================================================================================
   A. SCHEDULED                 B. ADDITIONAL      C. PREPAIDS       D. OTHERS      E. TOTAL
      PRINCIPAL                     PRINCIPAL         IN FULL                          PRINCIPAL
=================================================================================================
<S>                              <C>                <C>              <C>             <C>     
      1,735.76                       721.10        70,516.54             0.00         72,973.40
=================================================================================================
F. Int. Distribution Amount (Yield                10.50001%)                          14,022.33
                                                                              -------------------
G. Total Distribution Amount (Principal & Interest)                                   86,995.73
                                                                              ===================
H. Certificates A-1 Distribution
                                 (E x 94.5%) Princ:                 68,959.86
                                 (E x 94.5%) Int:                   13,251.10
                                                                              -------------------
                                                                                      82,210.96
                                                                              ===================
I. Certificate B Distribution     
                                  (E x 5.5%) Princ:                  4,013.54
                                  (F x 5.5%) Int:                      771.23
                                                                              -------------------
                                                                                       4,784.77
                                                                              ===================
SECTION 3 - PRINCIPAL AMOUNT OF SECURITIES
=================================================================================================
A. Beginning Aggregate Security Balance                                            1,602,551.78
                                                                              -------------------
B. Principal Distribution Amount                                                      72,973.40
                                                                              -------------------
C. Ending Aggregate Security Balance                                               1,529,578.38
                                                                              ===================
MEMO ITEM
=================================================================================================
A. Book Value Of Real Estate Acquired Through Foreclosure                                   N/A
                                                                              -------------------
B. Ending Aggregate Security Balance Of The Class A
   Certificates (94.5% of Security Balance)                                        1,445,451.30
                                                                              -------------------
C. Ending Aggregate Security Balance Of The Class B
   Certificates (5.50% of Security Balance)                                           84,127.08
                                                                              -------------------
</TABLE>

All distributions required to be made by First Interstate Bank for the reporting
month of: JULY 97               Payable: AUG 25, 97 have been made.

Certified by:

/s/ KATHY MUELLER
- --------------------------------
Kathy Mueller, Supervisor
Investor Reporting Department


                                     Page 2



<PAGE>   3
<TABLE>
<CAPTION>
================================================================================
          SUBORDINATED AMOUNT                    1989-1            JULY 30, 1997
================================================================================
                                                 PERCENT              DOLLARS
<S>                                            <C>               <C>         
 A.  BEGINNING BALANCE                            5.50              1,848,466.00
                                               ---------------------------------
 B.  AGGREGATE LOSSES                                                (368,690.54)
                                               ---------------------------------
 C.  SCHEDULED ADJUSTMENTS PER
     POOLING & SERVICING AGREEMENT                                 (1,035,873.00)
                                               ---------------------------------
 D.  ENDING BALANCE                               5.50                812,593.00
================================================================================

RESERVE FUND

 A.  BEGINNING BALANCE                                                812,593.00
                                                               -----------------
 B.  (+) INTEREST CREDITED                                                  0.00
                                                               -----------------
 C.  (-) INTEREST WITHDRAWN                                                 0.00
                                                               -----------------
 D.  (+) CLASS B PRINCIPAL (UNTIL LIMITS ARE REACHED)                   4,013.54
                                                               -----------------
 E.  (+) CLASS B INTEREST (UNTIL LIMITS ARE REACHED)                      771.23
                                                               -----------------
 F.  (-) TRANSFER TO WMC
                                                               -----------------
 G.  SUB TOTAL                                                        817,377.77
================================================================================

 NOTES:

   INITIAL DEPOSIT (UNRETURNED TO SELLER)                                   0.00
                                                               -----------------
   THREE CURRENT HIGHEST PRINCIPAL BALANCES                           805,797.73
                                                               -----------------
   SPECIFIED RESERVE FUND:                                            812,593.00
                                                               -----------------
   CLASS B  PRIN & INT  TRANSFER TO REPUBLIC FEDERAL:                   4,784.77
    (equal to amt over Specified Reserve Fund Limit)           -----------------
 
================================================================================
 H.  ENDING BALANCE                                                   812,593.00
================================================================================
</TABLE>

                                     Page 3


<PAGE>   4
<TABLE>
<CAPTION>
                    RECONCILIATION OF POOL PRINCIPAL BALANCE
                         WITH SECURITY PRINCIPAL BALANCE
                                  POOL NO. 816
               <S>                                 <C>         
                                                   1,531,493.84
               (+)                                       638.98
               (-)                                       885.50
               (-)                                     1,735.76
               (+)                                        67.23
               (-)                                         0.00

                                                   1,529,578.79

                                                   1,529,578.38

                                                           0.41 


                   RECONCILIATION OF CUSTODIAL ACCOUNT BALANCE

               (+)                                     5,393.01
               (-)                                       173.21
               (-)                                    10,434.02
               (+)                                       865.24
               (+)                                         0.00 
               (+)                                       721.10
               (-)                                         0.00
               (+)                                    70,516.54
               (+)                                       714.25
               (-)                                        29.41

                                                      67,573.50 

                                                      67,574.38

                                                           0.88  
</TABLE>

                                     Page 4


<PAGE>   5
                             SENIOR SUBORDINATED PASS-THRU
                             SPECIFIED RESERVE FUND LIMITS

REPORTING MONTH:  7/31/97
<TABLE>
<CAPTION>
                                                                    1989-1
                                                                  -----------
<S>                                                               <C>
     (A)       TERM                                                        30
     (B)       LOAN TYPE                                                FIXED
     (C)       CLASS A %                                                9.45%
     (D)       CLASS B %                                                5.50%
     (E)       ORIGINAL AGGREGATE BALANCE                          73,324,233
     (F)       CURRENT UPB                                          1,531,494
     (G)       RULE CHANGE DATE                                      06/01/94
     (H)       ORIGINAL CUTOFF DATE                                  06/01/89

SUBORDINATED CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)

     (I)       PREVIOUS SUBORDINATED AMT                            1,848,466
     (J)       CLASS B % OF CURR UPB (F)x(D)                           84,232
     (K)       AGGREGATE LOSSES                                       368,691
     (L)       SUB AMT UNTIL RULE CHANGE DATE (J-K)                   812,593

RESERVE CALCULATIONS (FORMULA TO BE REVISED AT RULE CHANGE DATE)

     (M)       ADVANCE RESERVE                                        203,000
     (N)       1% OF CURR AGG BAL (E) x .01                            15,315
     (O)       O.S. UPB CLASS B (F)x(D)                                84,232
     (P)       SUBORD AMT - OS UBP CLASS B (L)-(O)                    728,361
     (Q)       ADV RES + GRT'R OF: (N) or (P)                         931,361
                                                                  -----------

MINIMUM RESERVE FUND

     (R)       O.S. UPB 3 LARGEST LNS                                 805,798
     (S)       SUBORDINATED AMOUNT (L)                                812,593
                                                                  -----------
     (T)       SPECIFIED RESERVE FUND = > OF (R)or(S)                 812,593
                                                                  ===========
     (U)       CURRENT RESERVE FUND BALANCE                           812,593

STATUS OF INITIAL DEPOSIT

     (V)       ORIGINAL INITIAL DEPOSIT                                85,000
</TABLE>

                                      RULES
                                      -----

<TABLE>
<S>                                                                   <C>
     SUBORDINATED AMOUNT                                              AFTER RULE CHANGE DATE: SUB AMOUNT =
     UNTIL RULE CHANGE DATE: SUB AMOUNT =                             LESSER OF A: PREVIOUS SUB AMOUNT AND
     CLASS B % OF ORIG AGGR BAL                                            B: THE SUM OF
     LESS AGGR LOSSES SINCE ORIG CUTOFF DATE                                  (x) CLASS B % OF CURRENT UPB
                                                                              (y) 6/1994 80% OF (A)-(x)     }
                                                                                  6/1995 60% OF (A)-(x)     }
                                                                                  6/1996 40% OF (A)-(x)     } REDUCTION SCHEDULE
                                                                                  6/1997 20% OF (A)-(x)     }
                                                                                  6/1998+ 0% OF (A)-(x)     }
</TABLE>
HOWEVER:

(B) CANNOT < SUM OF O.S. UPB 3 LARGEST LOANS

IMPORTANT:

        IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE 90 DAY+
DELINQUENCIES-7% OF TOTAL LOAN COUNT FOR 2 CONSECUTIVE MONTHS, THE REDUCTION
FOR THAT MONTH WILL NOT TAKE PLACE.

        IF DURING THE 12 MONTHS PRECEDING AN ANNIVERSARY DATE THE ABOVE RULE IS
NOT BROKEN, REDUCTIONS WILL TAKE PLACE AS SCHEDULED.

================================================================================

SPECIFIED RESERVE FUND

UNTIL RULE CHANGE DATE: SPECIFIED RESERVE FUND =

     THE SUM OF (i) ADVANCE RESERVE              THE SUM OF (i) ADVANCE RESERVE
     AND       (ii) THE GREATER OF               AND       (ii) THE GREATER OF

    (a) 1% OF ORIGINAL AGGR BAL             (a) 1% OF CURRENT O.S. AGGR BAL
    (b) SUB AMOUNT - O.S. BAL CLASS B       (b) SUB AMOUNT - O.S. BAL CLASS B

HOWEVER;

    (ii) CANNOT BE < THE SMALLER OF:        (a) THE O.S. UPB 3 LRGST LOANS ....
                                            (b) SUB AMOUNT

                           NOR >: SUBORDINATED AMOUNT

        WHEN SUB AMOUNT = ZERO, SPECIFIED RESERVE FUND = ADVANCE RESERVE>


                                     Page 5


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