EXHIBIT 3.1.9 LIBERTY PROPERTY LIMITED PARTNERSHIP PARTNERSHIP INTERESTS AS OF DECEMBER 31, 2000 Number of Partnership Limited Partners Interests % - -------------------------------------------- ----------- ------- Balitsaris, Peter 58,542 0.0712% Carr, Clai 138,000 0.1677% Castorina, John 14,491 0.0176% Denny, Joseph 260,250 0.3163% Felix, Jill 195,043 0.2371% Fenza, Robert 195,043 0.2371% Fitzgerald, Ward 14,491 0.0176% Gildea, Larry 93,319 0.1134% Goldschmidt, Robert 22,895 0.0278% Hagan, Michael 14,491 0.0176% Hammers, David 241,673 0.2937% Kiel, Bob 14,491 0.0176% Kline, Earl 19,128 0.0232% Lutz, Jim 37,312 0.0453% Mazarrelli, James 14,491 0.0176% Messaros, Sharron 7,245 0.0088% Morrissey, Mary Beth 14,491 0.0176% Price, Leslie 175,336 0.2131% Reichert, Joseph 27,242 0.0331% Rouse & Associates, Inc. 5,506 0.0067% Rouse, Willard 457,665 0.5563% Trust for Congdon Children 95,347 0.1159% Trust for Hammers Children 95,348 0.1159% Trust for Mary Rouse 13,621 0.0166% Trust for Anne Rouse 13,621 0.0166% Trust for Rouse Younger Children 81,726 0.0993% Trust for Laurie Hammers 5,506 0.0067% Weitzmann, Mike 42,312 0.0514% Liberty Special Purpose Trust 10,574 0.0129% Thomas, Rebecca 8,076 0.0098% Trust J. Ryan Lingerfelt 15,625 0.0190% Trust Justin M. Lingerfelt 15,625 0.0190% Trust Daniel K. Lingerfelt 15,625 0.0190% Trust Catherine E. Lingerfelt 15,625 0.0190% Lingerfelt, Alan T. 317,500 0.3859% Lingerfelt, L. Harold 164,375 0.1998% The James J. Carpenter Living Trust 78,750 0.0957% Lingerfelt, David L. 30,674 0.0373% Ferguson, Morris U. 6,000 0.0073% Lingerfelt, Carl C. 10,900 0.0132% Wright, Murray H. 7,500 0.0091% Latimer, Erle Marie 12,500 0.0152% Mazel Investments LLC 28,025 0.0341% Number of Partnership Limited Partners - Continued Interests % - -------------------------------------------- ----------- ------- Stewart R. Stender 57,613 0.0700% Robert C. Lux 57,612 0.0700% Liberty Life Insurance Company 466,980 0.5676% Rouse & Associates Maryland Partnership 20,000 0.0243% A. Carl Helwig 356,737 0.4336% James J. Sunday 79,348 0.0964% Charles J. Walters 290,723 0.3533% Magaret A. Doyle 19,380 0.0236% Stanford Baratz 9,044 0.0110% Preferred Limited Partners - -------------------------------------------- Belair Real Estate Corporation 1,235,000 1.5010% Belcrest Realty Corporation 2,565,000 3.1175% Montebello Realty Corp. 800,000 0.9723% General Partner - -------------------------------------------- Liberty Property Trust - Preferred Units 5,000,000 6.0771% Liberty Property Trust GP 82.9071% -------- Total Ownership 100.0000% GP - The partnership units for Liberty Property Trust have not been reflected because there is no conversion of units to shares by the general partner.