Updated Exhibit A Ginnie Mae REMIC Trust 2003-064 Characteristics of the Ginnie Mae Multifamily Certificates and the Related Mortgage Loans* Pool Number FHA Program City State Principal Balance as of the Cut-off Date Mortgage Interest Rate Certificate Rate Servicing and Guaranty Fee Rate Maturity Date Original Term to Maturity (mos.) Remaining Term to Maturity (mos.) Period from Issuance (mos.) Issue Date Lockout End Date Prepayment Penalty End Date Lockout/ Prepayment Penalty Code Remaining Lockout Period (mos.) Total Remaining Lockout and Prepayment Penalty Period (mos.) 548988 223(f) Rockville MD $21,635,371.70 4.750% 4.500% 0.250% Jul-38 420 373 47 Jul-03 Jul-08 Jul-13 2 13 73 523389 221(d)(4) Golden CO 19,591,321.83 7.000 6.750 0.250 Feb-43 476 428 48 Jun-03 Sep-07 Sep-12 2 3 63 536580 221(d)(4) Stone Mountain GA 18,422,421.97 7.100 6.850 0.250 Apr-43 477 430 47 Jul-03 Mar-08 Mar-13 2 9 69 476002 221(d)(4) Owings Mills MD 16,153,217.25 7.250 7.000 0.250 Jan-43 476 427 49 May-03 Jan-08 Jan-13 2 7 67 475267 223(a)(7) Overland Park KS 15,504,222.15 5.150 4.900 0.250 Aug-43 480 434 46 Aug-03 Aug-08 Aug-13 2 14 74 536719 221(d)(4) Charlottesville VA 15,245,950.34 7.100 6.850 0.250 Feb-43 475 428 47 Jul-03 Nov-07 Oct-12 2 5 64 424910 223(a)(7) Richmond VA 14,150,133.78 5.000 4.750 0.250 Jul-34 373 325 48 Jun-03 Jul-08 Jul-13 2 13 73 609319 223(a)(7) Sarasota FL 12,979,613.78 5.800 5.550 0.250 Mar-41 452 405 47 Jul-03 Jun-07 Jun-10 3 0 36 610012 221(d)(4) Charlotte NC 12,809,989.61 4.980 4.730 0.250 Sep-41 458 411 47 Jul-03 Jun-08 May-13 2 12 71 610011 221(d)(4) Charlotte NC 11,776,352.82 4.700 4.450 0.250 Aug-42 469 422 47 Jul-03 Jun-08 May-13 2 12 71 519341 221(d)(4) Surprise AZ 11,593,826.16 6.870 6.550 0.320 Mar-43 476 429 47 Jul-03 Mar-08 Mar-13 2 9 69 579591 221(d)(4) Kansas City MO 11,359,662.72 7.000 6.740 0.260 Feb-43 475 428 47 Jul-03 Oct-07 Oct-12 2 4 64 610003 223(a)(7) Winter Park FL 10,768,642.37 5.250 5.000 0.250 Jul-36 397 349 48 Jun-03 Jun-08 Jun-13 2 12 72 565423 221(d)(4) Landover MD 10,309,476.37 6.870 6.620 0.250 Apr-43 478 430 48 Jun-03 Dec-07 Dec-12 2 6 66 575333 221(d)(4) Dallas TX 9,621,628.00 7.000 6.750 0.250 Feb-43 477 428 49 May-03 Oct-07 Oct-12 2 4 64 430336 221(d)(4) LaVergne TN 8,845,325.20 6.625 6.375 0.250 Nov-40 481 401 80 Oct-00 Feb-10 N/A 1 32 32 413910 232 Provo UT 8,512,004.31 7.180 6.930 0.250 Apr-39 465 382 83 Jul-00 Jan-09 N/A 1 19 19 439190 221(d)(4) Pullman WA 7,162,294.35 7.660 7.410 0.250 Dec-41 470 414 56 Oct-02 Dec-11 N/A 1 54 54 424911 223(f) Waldorf MD 6,792,226.03 4.950 4.700 0.250 Jul-38 421 373 48 Jun-03 Jul-08 Jul-13 2 13 73 608869 232/223(f) Bellingham WA 6,466,294.50 4.700 4.450 0.250 Jul-38 420 373 47 Jul-03 Jul-08 Jul-13 2 13 73 580580 221(d)(4) Peoria AZ 6,206,298.05 5.250 5.000 0.250 Mar-42 465 417 48 Jun-03 Apr-07 Apr-12 2 0 58 588626 223(a)(7) San Marcos TX 6,136,471.21 5.430 4.930 0.500 Jul-38 420 373 47 Jul-03 Jul-08 Jul-13 2 13 73 606431 232/223(f) Huntsville AL 5,869,599.37 5.450 5.000 0.450 Jul-38 421 373 48 Jun-03 Jun-08 Jun-13 2 12 72 544420 221(d)(4) Maplewood MN 5,557,841.94 6.950 6.700 0.250 Nov-42 473 425 48 Jun-03 Nov-12 N/A 1 65 65 607569 223(f) Las Vegas NV 4,821,162.60 5.000 4.700 0.300 Aug-36 397 350 47 Jul-03 Aug-08 Aug-13 2 14 74 472872 223(a)(7) Lake Zurich IL 4,515,975.06 6.650 6.400 0.250 Sep-38 480 375 105 Sep-98 Aug-03 Aug-08 2 0 14 597693 223(a)(7) Augusta GA 3,750,966.17 5.700 5.450 0.250 Jun-38 420 372 48 Jun-03 Jun-06 N/A 1 0 0 602361 232/223(f) Springfield OR 3,747,362.50 5.250 5.000 0.250 Jul-38 420 373 47 Jul-03 Jul-06 Jul-09 3 0 25 445473 223(f) West Des Moines IA 3,684,388.72 6.750 6.500 0.250 Jul-33 421 313 108 Jun-98 Jun-08 N/A 1 12 12 606434 232/223(f) Fremont CA 3,525,603.97 5.250 4.875 0.375 Aug-33 361 314 47 Jul-03 Jul-08 Jul-13 2 13 73 576373 232 Houma LA 3,371,424.14 7.500 7.250 0.250 Jan-43 476 427 49 May-03 Oct-07 Oct-12 2 4 64 610015 223(a)(7) Richmond VA 3,085,570.65 5.000 4.750 0.250 Nov-22 232 185 47 Jul-03 Jul-08 Jul-13 2 13 73 606419 223(d) Skokie IL 2,978,915.10 5.690 5.440 0.250 Sep-39 438 387 51 Mar-03 Mar-08 Mar-13 2 9 69 526379 232 Windham CT 2,960,169.60 9.550 9.300 0.250 Mar-42 472 417 55 Nov-02 Jul-11 N/A 1 49 49 586429 223(a)(7) New York NY 2,848,779.38 4.900 4.400 0.500 Jul-18 180 133 47 Jul-03 Jul-08 Jul-13 2 13 73 586427 232/223(f) Wapato WA 2,728,954.58 5.450 5.200 0.250 Jul-36 397 349 48 Jun-03 Jul-08 Jul-13 2 13 73 601453 241(f) Bellevue NE 2,637,944.63 4.750 4.500 0.250 Jul-38 420 373 47 Jul-03 Jul-08 Jul-13 2 13 73 595528 221(d)(4) Milwaukee WI 2,571,380.38 5.150 4.900 0.250 Jan-34 367 319 48 Jun-03 Jun-08 Jun-13 2 12 72 610018 223(f) Graham NC 2,551,589.64 5.100 4.850 0.250 Aug-38 421 374 47 Jul-03 Jun-08 Jun-13 2 12 72 615218 223(a)(7) Midland MI 2,307,199.82 5.000 4.650 0.350 Jul-18 180 133 47 Jul-03 Jul-08 Jul-13 2 13 73 609998 223(f) Memphis TN 2,295,149.67 5.170 4.920 0.250 Jul-38 421 373 48 Jun-03 Jun-08 Jun-13 2 12 72 576037 221(d)(4) Austin TX 2,137,688.76 7.750 7.500 0.250 Jan-36 401 343 58 Aug-02 Jan-11 N/A 1 43 43 615219 223(a)(7) Tawas City MI 2,075,012.20 5.000 4.650 0.350 Jul-18 180 133 47 Jul-03 Jul-08 Jul-13 2 13 73 578223 223(a)(7) Galveston TX 1,959,860.89 5.875 5.625 0.250 Jul-30 325 277 48 Jun-03 Jun-08 Jun-13 2 12 72 577358 221(d)(4) Waseca MN 1,539,812.67 7.400 7.100 0.300 Mar-38 417 369 48 Jun-03 Apr-12 N/A 1 58 58 608871 223(a)(7) Memphis TN 1,475,939.88 4.950 4.700 0.250 Jul-38 420 373 47 Jul-03 Jul-08 Jul-13 2 13 73 450818 223(a)(7) El Dorado KS 1,306,765.81 5.220 4.840 0.380 Jun-30 324 276 48 Jun-03 Jun-08 Jun-13 2 12 72 586428 223(a)(7) Springfield MA 1,218,418.79 4.950 4.450 0.500 Jul-33 360 313 47 Jul-03 Jul-08 Jul-13 2 13 73 601454 241(f) Council Bluffs IA 1,022,196.62 4.900 4.500 0.400 Aug-35 385 338 47 Jul-03 Jul-08 Jul-13 2 13 73 450817 223(a)(7) El Dorado KS 997,701.24 5.220 4.840 0.380 Jun-28 300 252 48 Jun-03 Jun-08 Jun-13 2 12 72 450816 223(a)(7) Dodge City KS 996,059.37 5.250 4.870 0.380 Jun-28 300 252 48 Jun-03 Jun-08 Jun-13 2 12 72 608874 223(a)(7) Vicksburg MS 855,846.60 5.375 4.875 0.500 Jul-33 360 313 47 Jul-03 Jul-08 Jul-13 2 13 73 580588 223(a)(7) Red Bluff CA 788,597.77 4.875 4.375 0.500 Jul-33 360 313 47 Jul-03 Jul-08 Jul-13 2 13 73 586420 223(d) Riverdale Park MD 691,317.14 5.800 5.300 0.500 Dec-37 414 366 48 Jun-03 Nov-08 Nov-10 4 17 41 602347 223(a)(7) Various MO 625,490.88 7.500 6.000 1.500 Jun-33 360 312 48 Jun-03 May-08 May-13 2 11 71 610017 223(a)(7) Rutherfordton NC 599,274.07 4.950 4.450 0.500 Aug-38 421 374 47 Jul-03 Jun-08 Jun-13 2 12 72 602358 223(a)(7) Sierra Vista AZ 571,949.40 5.950 5.450 0.500 Jun-33 359 312 47 Jul-03 May-08 May-13 2 11 71 602354 223(a)(7) Greenfield OH 517,839.56 6.450 5.450 1.000 Jun-33 359 312 47 Jul-03 May-08 May-13 2 11 71 608875 223(a)(7) Laurel MS 268,146.37 5.375 4.875 0.500 Jul-33 360 313 47 Jul-03 Jul-08 Jul-13 2 13 73 D-3