Exhibit 99.17 GE CAPITAL MORTGAGE SERVICES, INC. SERVICER'S CERTIFICATE October, 1999 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 $ 292,154.82 --------------- (b) Interest $ 2,299,414.51 --------------- (c) Total $ 2,591,569.33 --------------- 2. Aggregate scheduled Monthly Payments received this month: (a) Principal $ 229,397.69 --------------- (b) Interest $ 1,815,755.43 --------------- (c) Total $ 2,045,153.12 --------------- 3. Aggregate Monthly Advances this month: (a) Principal $ 62,757.13 --------------- (b) Interest $ 483,659.08 --------------- (c) Total $ 546,416.21 --------------- 4. Aggregate Principal Prepayments in part received in the applicable Prepayment Period: (a) Principal $ 80,758.35 --------------- 5. Aggregate Principal Prepayments in full received in the applicable Prepayment Period: (a) Principal $ 5,164,974.07 --------------- (b) Interest $ 33,074.64 --------------- (c) Total $ 5,198,048.71 --------------- 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: $ 361,576,206.18 --------------- 13. Available Funds: $ 7,794,035.98 --------------- 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: $ 2,596.27 --------------- 18. Total interest payments: $ 2,256,148.73 --------------- 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 $ 620,420.30 $ 0.00 $ 620,420.30 % 6.625000039 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 $ 151,965.25 $ 0.00 $ 151,965.25 % 6.625000068 IA6 $ 60,796.63 $ 0.00 $ 60,796.63 % 6.624999864 IA7 $ 4,598.44 $ 0.00 $ 4,598.44 % 6.750003670 IA8 $ 14,858.59 $ 0.00 $ 14,858.59 % 6.170628248 IA9 $ 3,923.46 $ 0.00 $ 3,923.46 % 7.266496483 IA10 $ 1,083.58 $ 0.00 $ 1,083.58 %10.000046144 IIA1 $ 915,562.51 $ 0.00 $ 915,562.51 % 7.000000019 IIA2 $ 0.00 $ 0.00 $ 0.00 % 0.000000000 AR $ 0.00 $ 0.00 $ 0.00 % 0.000000000 X $ 230,616.86 $ 0.00 $ 230,616.86 % 6.624999926 M $ 48,838.74 $ 0.00 $ 48,838.74 % 6.625000037 B1 $ 28,217.93 $ 0.00 $ 28,217.93 % 6.624999062 B2 $ 23,876.72 $ 0.00 $ 23,876.72 % 6.625001255 B3 $ 11,938.36 $ 0.00 $ 11,938.36 % 6.625001239 B4 $ 6,511.83 $ 0.00 $ 6,511.83 % 6.624999511 B5 $ 10,853.07 $ 0.00 $ 10,853.07 % 6.625002711 20. Principal Distribution Amount: $ 5,537,887.25 ------------- 21. Principal Distribution Amount per Certificate: Principal Distribution Accrual Amount ---------------------- -------------- Class P $ 240.14 $ 0.00 Class IA1 $ 2,667,192.02 $ 0.00 Class IA2 $ 0.00 $ 0.00 Class IA3 $ 0.00 $ 0.00 Class IA4 $ 0.00 $ 0.00 Class IA5 $ 914,665.09 $ 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 $ 1,833,255.02 $ 0.00 Class IIA2 $ 103,769.15 $ 0.00 Class AR $ 0.00 $ 0.00 Class X $ 0.00 $ 0.00 Class M $ 7,037.19 $ 0.00 Class B1 $ 4,065.93 $ 0.00 Class B2 $ 3,440.40 $ 0.00 Class B3 $ 1,720.20 $ 0.00 Class B4 $ 938.29 $ 0.00 Class B5 $ 1,563.82 $ 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 % 6.17062825 Class IA9 % 7.26649648 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: $ 75,898.53 ---------- 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