Exhibit 99.25

                       GE CAPITAL MORTGAGE SERVICES, INC.
                             SERVICER'S CERTIFICATE
                                 November, 1999
           Series 1999-13, REMIC Multi-Class Pass-Through Certificates


Pursuant to the Pooling and  Servicing  Agreement  dated as of June 1, 1999 (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                                $      413,157.43
                                                                  --------------
               (b)   Interest                                 $    2,894,263.63
                                                                  --------------
               (c)   Total                                    $    3,307,421.06
                                                                  --------------

        2. Aggregate scheduled Monthly Payments received this month:
               (a)   Principal                                $      279,462.92
                                                                  --------------
               (b)   Interest                                 $    1,963,015.62
                                                                  --------------
               (c)   Total                                    $    2,242,478.54
                                                                  --------------

        3.     Aggregate Monthly Advances this month:
               (a)   Principal                                $      133,694.51
                                                                  --------------
               (b)   Interest                                 $      931,248.01
                                                                  --------------
               (c)   Total                                    $    1,064,942.52
                                                                  --------------

        4.      Aggregate   Principal   Prepayments  in  part  received  in  the
                applicable Prepayment Period:
               (a)   Principal                                $       70,459.48
                                                                  --------------

        5.     Aggregate   Principal   Prepayments   in  full  received  in  the
               applicable Prepayment Period:
               (a)   Principal                                $    1,545,471.26
                                                                  --------------
               (b)   Interest                                 $        9,015.08
                                                                  --------------
               (c)   Total                                    $    1,554,486.34
                                                                  --------------

        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                                $            0.00
                                                                 ---------------
               (b)   Interest                                 $            0.00
                                                                 ---------------
               (c)   Total                                    $            0.00
                                                                 ---------------

12.      Pool Scheduled Principal Balance:                    $  484,920,484.67
                                                                 ---------------

13.      Available Funds:                                     $    4,827,885.90
                                                                 ---------------

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:                      $        1,837.10
                                                                  --------------

18.       Total interest payments:                            $    2,798,797.73
                                                                  --------------

19. Interest
                                  Unpaid Class
      Accrued Certificate      Interest Shortfalls     Interest
Class       Interest                                    Payable     Pay-out Rate
- -----       --------           -------------------      -------     ------------
R     $                 0.00   $              0.00    $       0.00  %0.000000000
PO    $                 0.00   $              0.00    $       0.00  %0.000000000
A1    $           210,586.67   $              0.00    $ 210,586.67  %6.499999891
A2    $            77,594.58   $              0.00    $  77,594.58  %6.432499767
A3    $           257,575.18   $              0.00    $ 257,575.18  %6.500000103
A4    $            18,908.59   $              0.00    $  18,908.59  %5.598213136
A5    $            14,886.03   $              0.00    $  14,886.03  %7.000002351
A6    $            27,489.09   $              0.00    $  27,489.09  %6.999999151
A7    $            11,666.67   $              0.00    $  11,666.67  %7.000002000
A8    $           176,028.16   $              0.00    $ 176,028.16  %7.500000093
A9    $           668,426.23   $              0.00    $ 668,426.23  %5.999999967
A10   $           158,425.34   $              0.00    $ 158,425.34  %6.749999913
A11   $           566,527.40   $              0.00    $ 566,527.40  %6.999999946
A12   $           112,162.92   $              0.00    $ 112,162.92  %6.500000193
A13   $            20,113.33   $              0.00    $  20,113.33  %6.999998840
A14   $                 0.00   $              0.00    $       0.00  %0.000000000
A15   $            24,523.33   $              0.00    $  24,523.33  %6.999999049
A16   $             6,653.74   $              0.00    $   6,653.74  %6.999994740
A17   $           169,225.00   $              0.00    $ 169,225.00  %6.000000000
S     $           163,569.65   $              0.00    $ 163,569.65  %0.421993790
M     $            56,594.61   $              0.00    $  56,594.61  %6.499999510
B1    $            20,174.96   $              0.00    $  20,174.96  %6.500000995
B2    $            12,103.89   $              0.00    $  12,103.89  %6.499997637
B3    $            13,448.17   $              0.00    $  13,448.17  %6.499999180
B4    $             5,377.11   $              0.00    $   5,377.11  %6.500000987
B5    $             6,737.08   $              0.00    $   6,737.08  %6.500003164

20.       Principal Distribution Amount:                      $    2,029,088.17
                                                                  --------------

21.      Principal Distribution Amount per Certificate:

                                  Principal Distribution      Accrual Amount
                                  ----------------------      --------------
         Class R                  $                0.00       $         0.00
         Class PO                 $              534.69       $         0.00
         Class A1                 $          348,831.68       $         0.00
         Class A2                 $                0.00       $         0.00
         Class A3                 $           40,341.38       $         0.00
         Class A4                 $                0.00       $         0.00
         Class A5                 $                0.00       $         0.00
         Class A6                 $                0.00       $         0.00
         Class A7                 $                0.00       $         0.00
         Class A8                 $          142,276.15       $         0.00
         Class A9                 $          846,297.79       $         0.00
         Class A10                $          142,276.15       $         0.00
         Class A11                $          490,607.41       $         0.00
         Class A12                $                0.00       $         0.00
         Class A13                $                0.00       $         0.00
         Class A14                $                0.00       $         0.00
         Class A15                $                0.00       $         0.00
         Class A16                $                0.00       $         0.00
         Class A17                $                0.00       $         0.00
         Class S                  $                0.00       $         0.00
         Class M                  $            8,863.84       $         0.00
         Class B1                 $            3,159.80       $         0.00
         Class B2                 $            1,895.71       $         0.00
         Class B3                 $            2,106.25       $         0.00
         Class B4                 $              842.16       $         0.00
         Class B5                 $            1,055.16       $         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:            $            0.00
                                                                 ---------------

                                                        Accumulative
               Class        Supported Shortfall     Supported Shortfall
               -----        -------------------     -------------------
                 B1         $              0.00     $              0.00
                 B2         $              0.00     $              0.00
                 B3         $              0.00     $              0.00
                 B4         $              0.00     $              0.00
                 B5         $              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  A2                  %             6.43249977
          Class  A4                  %             5.59821314

B.      Other Amounts for such Distribution Date:

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

        2.     Base Servicing Fee amount:                     $      104,551.84
                                                                     -----------

        3.     Supplemental Servicing Fee amount:             $             N/A
                                                                     -----------

        4.     Credit Losses for prior month:                 $            0.00
                                                                     -----------
                                                      Category Category Category
                                                          A        B        C
        5.     Senior Percentage:           % 95.657460  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:           %  4.342540
                                             -----------

        12.    Junior Prepayment Percentage:
                                            %  0.000000
                                             -----------

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

                                            GE CAPITAL MORTGAGE SERVICES, INC.

                                            By:  /s Tim Neer
                                            -------------------------------
                                                     Tim Neer
                                                     Vice President
                                                     Investor Services