Exhibit 99.39

                       GE CAPITAL MORTGAGE SERVICES, INC.
                             SERVICER'S CERTIFICATE
                                  August, 1998
          Series 1998-12B, REMIC Multi-Class Pass-Through Certificates

Pursuant to the Pooling and  Servicing  Agreement  dated as of July 1, 1998 (the
"Agreement")  between GE Capital  Mortgage  Services,  Inc. (the  "Company") and
State Street Bank (the "Trustee"), governing the Certificates referred to above,
the Company hereby certifies to the Trustee:

With respect to the Agreement and as of the Determination Date for this month:

A.   Mortgage Loan Information:

 1.     Aggregate scheduled Monthly Payments:
        (a)    Principal                                   $         149,128.49
                                                              ------------------
        (b)    Interest                                    $       1,211,835.82
                                                              ------------------
        (c)    Total                                       $       1,360,964.31
                                                              ------------------

 2.     Aggregate scheduled Monthly Payments received this month:
        (a)    Principal                                   $         139,721.38
                                                              ------------------
        (b)    Interest                                    $       1,133,451.13
                                                              ------------------
        (c)    Total                                       $       1,273,172.51
                                                              ------------------

 3.     Aggregate Monthly Advances this month:
        (a)    Principal                                   $           9,407.11
                                                              ------------------
        (b)    Interest                                    $          78,384.69
                                                              ------------------
        (c)    Total                                       $          87,791.80
                                                              ------------------

 4.      Aggregate  Principal  Prepayments  in part  received in the  applicable
         Prepayment Period:
        (a)    Principal                                   $          42,616.93
                                                              ------------------

 5.     Aggregate  Principal  Prepayments  in full  received  in the  applicable
        Prepayment Period:
        (a)    Principal                                   $       4,250,637.98
                                                              ------------------
        (b)    Interest                                    $          16,365.87
                                                              ------------------
        (c)    Total                                       $       4,267,003.85
                                                              ------------------

 6.     Aggregate Insurance Proceeds received:
        (a)    Principal                                   $               0.00
                                                              ------------------
        (b)    Interest                                    $               0.00
                                                              ------------------
        (c)    Total                                       $               0.00
                                                              ------------------

 7.     Aggregate Liquidation Proceeds received:
        (a)    Principal                                   $               0.00
                                                              ------------------
        (b)    Interest                                    $               0.00
                                                              ------------------
        (c)    Total                                       $               0.00
                                                              ------------------

 8.     Aggregate Deficient Valuations with respect to the Mortgage
        Loans during the prior month:                      $               0.00
                                                              ------------------

 9.     Aggregate Debt Service Reductions with respect to the Mortgage Loans 
        during the prior month:                            $               0.00
                                                              ------------------

 10.    Aggregate Purchase Prices for Defaulted Mortgage Loans:
        (a)    Principal                                   $               0.00
                                                              ------------------
        (b)    Interest                                    $               0.00
                                                              ------------------
        (c)    Total                                       $               0.00
                                                              ------------------

 11.    Aggregate Purchase Prices for Defective Mortgage Loans:
        (a)    Principal                                   $         747,302.37
                                                              ------------------
        (b)    Interest                                    $           4,627.52
                                                              ------------------
        (c)    Total                                       $         751,929.89
                                                              ------------------

12.     Pool Scheduled Principal Balance:                  $     195,032,628.59
                                                               -----------------

13.     Available Funds:                                   $       6,315,294.66
                                                               -----------------

14.     Realized Losses for prior month:                   $               0.00
                                                               -----------------

15.     Aggregate Realized Losses
           (a)   Aggregate Realized Losses:          $                     0.00
                                                        ------------------------
           (b)   Deficient Valuations:               $                     0.00
                                                        ------------------------
           (c)   Debt Service Reductions:            $                     0.00
                                                        ------------------------
           (d)   Bankruptcy Losses:                  $                     0.00
                                                        ------------------------
           (e)   Special Hazard Losses:              $                     0.00
                                                        ------------------------
           (f)   Fraud Losses:                       $                     0.00
                                                        ------------------------
           (g)   Excess Bankruptcy Losses:           $                     0.00
                                                        ------------------------
           (h)   Excess Special Hazard Losses:       $                     0.00
                                                        ------------------------
           (i)   Excess Fraud Losses:                $                     0.00
                                                        ------------------------

16.      Non-Credit Losses:                                $               0.00
                                                              ------------------

17.      Compensating Interest Payment:                    $             578.19
                                                              ------------------

18.      Total interest payments:                          $       1,125,608.89
                                                              ------------------

19. Interest
                             Unpaid Class
      Accrued Certificate Interest Shortfalls     Interest
Class      Interest                                Payable      Pay-out Rate
- -----      --------       -------------------      -------      ------------
PO2   $             0.00   $            0.00   $        0.00   %  0.000000000
2A1   $       235,400.00   $            0.00   $  235,400.00   %  6.600000000
2A2   $       127,997.92   $            0.00   $  127,997.92   %  6.550000171
2A3   $         9,258.33   $            0.00   $    9,258.33   %  6.749997266
2A4   $       357,007.50   $            0.00   $  357,007.50   %  6.150000000
2A5   $       107,392.29   $            0.00   $  107,392.29   %  9.605750447
2A6   $        29,025.00   $            0.00   $   29,025.00   %  7.500000000
2A7   $        30,155.63   $            0.00   $        0.00   %  6.750001119
2A8   $         5,445.00   $            0.00   $        0.00   %  6.750000000
2A9   $       178,875.00   $            0.00   $  178,875.00   %  6.750000000
2R    $             0.56   $            0.00   $        0.56   %  6.720000000
2RL   $             0.56   $            0.00   $        0.56   %  6.720000000
2M    $        20,829.38   $            0.00   $   20,829.38   %  6.750001620
2B1   $         8,448.75   $            0.00   $    8,448.75   %  6.750000000
2B2   $         4,505.63   $            0.00   $    4,505.63   %  6.750007491
2B3   $         4,505.63   $            0.00   $    4,505.63   %  6.750007491
2B4   $         2,255.63   $            0.00   $    2,255.63   %  6.750014963
2B5   $         4,506.08   $            0.00   $    4,506.08   %  6.750001170

20.      Principal Distribution Amount:                    $       5,189,685.77
                                                              ------------------

21.     Principal Distribution Amount per Certificate:

                                 Principal Distribution       Accrual Amount
                                 ----------------------       --------------
        Class PO2                $               116.70       $         0.00
        Class 2A1                $                 0.00       $         0.00
        Class 2A2                $                 0.00       $         0.00
        Class 2A3                $                 0.00       $         0.00
        Class 2A4                $           236,119.63       $         0.00
        Class 2A5                $            45,474.89       $         0.00
        Class 2A6                $            15,741.31       $         0.00
        Class 2A7                $         4,921,869.24       $    30,155.63
        Class 2A8                $                 0.00       $     5,445.00
        Class 2A9                $                 0.00       $         0.00
        Class SUP2               $                 0.00       $         0.00
        Class 2R                 $                 0.00       $         0.00
        Class 2RL                $                 0.00       $         0.00
        Class 2M                 $             2,757.75       $         0.00
        Class 2B1                $             1,118.59       $         0.00
        Class 2B2                $               596.53       $         0.00
        Class 2B3                $               596.53       $         0.00
        Class 2B4                $               298.64       $         0.00
        Class 2B5                $               596.59       $         0.00

22.  Additional  distributions  to  the  Class  R  Certificate  pursuant  to the
     Agreement:
                                                           $               0.00
                                                              ------------------

23.  Additional  distributions  to the  Class  RL  Certificate  pursuant  to the
     Agreement:
                                                           $               0.00
                                                              ------------------

24.     Subordinate Certificate Writedown Amount:          $               0.39
                                                              ------------------

                                                       Accumulative
                Class       Supported Shortfall    Supported Shortfall
                -----       -------------------    -------------------
                 2B1        $             0.00     $             0.00
                 2B2        $             0.00     $             0.00
                 2B3        $             0.00     $             0.00
                 2B4        $             0.00     $             0.00
                 2B5        $             0.00     $             0.00

25.     Unanticipated Recoveries:                          $               0.00
                                                              ------------------

26.      The Certificate Interest Rate applicable to the Interest Accrual Period
         relating to such  Distribution  Date  applicable to any floating  index
         certificate.

                Class                  Certificate Interest
                                              Rates
         Class  2A4                %              6.15000000
         Class  2A5                %              9.60575045
         Class  2A6                %              7.50000000

B.   Other Amounts for such Distribution Date:

1.      Prepayment Distribution
        Triggers satisfied:                        Yes         No
         Class-2B1                                  X
         Class-2B2                                  X
         Class-2B3                                  X
         Class-2B4                                  X
         Class-2B5                                  X

 2.     Base Servicing Fee amount:                         $          14,135.06
                                                                   -------------

 3.     Supplemental Servicing Fee amount:                 $          76,665.14
                                                                   -------------

 4.     Credit Losses for prior month:                     $               0.00
                                                                   -------------
                                                  Category  Category  Category
                                                      A         B         C
 5.     Senior Percentage:           % 95.997627     N/A       N/A       N/A
                                      -----------    ----    ------    ------

 6.     Group I Senior Percentage:
                                     %       N/A     N/A       N/A       N/A
                                      -----------    ----    ------    ------

 7.     Group II Senior Percentage:
                                     %       N/A     N/A       N/A       N/A
                                      -----------    ----    ------    ------

 8.     Senior Prepayment Percentage:
                                     %100.000000     N/A       N/A       N/A
                                      -----------    ----    ------    ------

 9.     Group I Senior Prepayment
        Percentage:                  %       N/A     N/A       N/A       N/A
                                      -----------    ----    ------    ------

 10.    Group II Senior Prepayment
        Percentage:                  %       N/A     N/A       N/A       N/A
                                      -----------    ----    ------    ------

 11.    Junior Percentage:           %  4.002373
                                      -----------

 12.    Junior Prepayment Percentage:
                                     %100.000000
                                      -----------

Capitalized  terms used in this  Certificate  shall have the same meanings as in
the Agreement.

                                            GE CAPITAL MORTGAGE SERVICES, INC.

                                            By:  /s/ Tim Neer              
                                            -------------------------------
                                            Name:    Tim Neer
                                            Title:   Vice President,
                                                     Investor Operations