Exhibit 99.17

                       GE CAPITAL MORTGAGE SERVICES, INC.
                             SERVICER'S CERTIFICATE
                                  January, 2000
          GEM Trust 99-01, REMIC Multi-Class Pass-Through Certificates

Pursuant to the Pooling and Servicing  Agreement  dated as of April 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                                $      288,889.23
                                                                  --------------
               (b)   Interest                                 $    2,206,869.03
                                                                  --------------
               (c)   Total                                    $    2,495,758.26
                                                                  --------------

        2. Aggregate scheduled Monthly Payments received this month:
               (a)   Principal                                $      188,935.47
                                                                  --------------
               (b)   Interest                                 $    1,430,262.75
                                                                  --------------
               (c)   Total                                    $    1,619,198.22
                                                                  --------------

        3.     Aggregate Monthly Advances this month:
               (a)   Principal                                $       99,953.76
                                                                  --------------
               (b)   Interest                                 $      776,606.28
                                                                  --------------
               (c)   Total                                    $      876,560.04
                                                                  --------------

        4.      Aggregate   Principal   Prepayments  in  part  received  in  the
                applicable Prepayment Period:
               (a)   Principal                                $      -37,093.02
                                                                  --------------

        5.     Aggregate   Principal   Prepayments   in  full  received  in  the
               applicable Prepayment Period:
               (a)   Principal                                $    2,254,847.40
                                                                  --------------
               (b)   Interest                                 $       13,515.36
                                                                  --------------
               (c)   Total                                    $    2,268,362.76
                                                                  --------------

        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:                    $  347,465,789.91
                                                                 ---------------

13.      Available Funds:                                     $    4,653,043.84
                                                                 ---------------

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:                      $        1,467.37
                                                                  --------------

18.       Total interest payments:                            $    2,146,400.21
                                                                  --------------

19. Interest
                              Unpaid Class
     Accrued Certificate   Interest Shortfalls      Interest
Class      Interest                                  Payable      Pay-out Rate
- -----      --------        -------------------       -------      ------------
P    $              0.00   $              0.00    $        0.00   % 0.000000000
IA1  $        576,165.93   $              0.00    $  576,165.93   % 6.624999959
IA2  $          5,541.67   $              0.00    $    5,541.67   % 7.000004211
IA3  $        109,312.50   $              0.00    $  109,312.50   % 6.625000000
IA4  $          7,232.29   $              0.00    $    7,232.29   % 6.624998473
IA5  $        136,789.02   $              0.00    $  136,789.02   % 6.625000097
IA6  $         60,796.63   $              0.00    $   60,796.63   % 6.624999864
IA7  $          4,598.44   $              0.00    $    4,598.44   % 6.750003670
IA8  $         17,520.88   $              0.00    $   17,520.88   % 7.276251451
IA9  $          1,261.17   $              0.00    $    1,261.17   % 2.335766739
IA10 $          1,083.58   $              0.00    $    1,083.58   %10.000046144
IIA1 $        880,716.30   $              0.00    $  880,716.30   % 6.999999991
IIA2 $              0.00   $              0.00    $        0.00   % 0.000000000
AR   $              0.00   $              0.00    $        0.00   % 0.000000000
X    $        215,458.67   $              0.00    $  215,458.67   % 6.625000096
M    $         48,721.17   $              0.00    $   48,721.17   % 6.624999438
B1   $         28,150.01   $              0.00    $   28,150.01   % 6.625000657
B2   $         23,819.24   $              0.00    $   23,819.24   % 6.625000288
B3   $         11,909.62   $              0.00    $   11,909.62   % 6.625000272
B4   $          6,496.16   $              0.00    $    6,496.16   % 6.625005030
B5   $         10,826.94   $              0.00    $   10,826.94   % 6.625000078

20.       Principal Distribution Amount:                      $    2,506,643.61
                                                                  --------------

21.      Principal Distribution Amount per Certificate:

                                  Principal Distribution      Accrual Amount
                                  ----------------------      --------------
         Class P                  $                0.00       $         0.00
         Class IA1                $          822,714.91       $         0.00
         Class IA2                $                0.00       $         0.00
         Class IA3                $                0.00       $         0.00
         Class IA4                $                0.00       $         0.00
         Class IA5                $          282,135.15       $         0.00
         Class IA6                $                0.00       $         0.00
         Class IA7                $                0.00       $         0.00
         Class IA8                $                0.00       $         0.00
         Class IA9                $                0.00       $         0.00
         Class IA10               $                0.00       $         0.00
         Class IIA1               $        1,315,260.68       $         0.00
         Class IIA2               $           74,448.71       $         0.00
         Class AR                 $                0.00       $         0.00
         Class X                  $                0.00       $         0.00
         Class M                  $            7,280.81       $         0.00
         Class B1                 $            4,206.69       $         0.00
         Class B2                 $            3,559.51       $         0.00
         Class B3                 $            1,779.75       $         0.00
         Class B4                 $              970.77       $         0.00
         Class B5                 $            1,617.96       $         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
               -----        -------------------     -------------------
                 M          $              0.00     $              0.00
                 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  IA8                 %             7.27625145
          Class  IA9                 %             2.33576674
          Class  IA10                %            10.00004614

B.      Other Amounts for such Distribution Date:

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

        2.     Base Servicing Fee amount:                     $       79,024.79
                                                                     -----------

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

        4.     Credit Losses for prior month:                 $            0.00
                                                                     -----------

                                                Category A Category B Category C
        5.     Senior Percentage:            %N/A  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:
                                             %N/A  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:            %N/A
                                              ----

        12.    Junior Prepayment Percentage:
                                             %N/A
                                              ----

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