| Summary Of Mortgages, Loans Payable And Other Obligations |  
		
			
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						Effective | 
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						March 31, | 
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						December 31, | 
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				| 
						Property Name | 
						Lender | 
						  | 
						Rate (a) | 
						  | 
						  | 
						  | 2013 | 
						  | 2012 | 
						  | 
						Maturity |  
				| 
						9200 Edmonston Road | 
						Principal Commercial Funding L.L.C. | 
						  | 5.534 | 
						% | 
						  | 
						$ | 4,258 | 
						$ | 4,305 | 
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						05/01/13 |  
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						Port Imperial South  | 
						Wells Fargo Bank N.A. | 
						LIBOR+2.75 | 
						% | 
						  | 
						  | 42,474 | 
						  | 42,168 | 
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						06/24/13 |  
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						Port Imperial South 4/5 | 
						Wells Fargo Bank N.A. | 
						LIBOR+3.50 | 
						% | 
						  | 
						  | 35,947 | 
						  | 34,889 | 
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						09/30/13 |  
				| 
						6305 Ivy Lane | 
						RGA Reinsurance Company | 
						  | 5.525 | 
						% | 
						  | 
						  | 5,939 | 
						  | 5,984 | 
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						01/01/14 |  
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						395 West Passaic | 
						State Farm Life Insurance Co. | 
						  | 6.004 | 
						% | 
						  | 
						  | 10,131 | 
						  | 10,231 | 
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						05/01/14 |  
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						6301 Ivy Lane | 
						RGA Reinsurance Company | 
						  | 5.520 | 
						% | 
						  | 
						  | 5,628 | 
						  | 5,667 | 
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						07/01/14 |  
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						35 Waterview Boulevard | 
						Wachovia CMBS | 
						  | 6.348 | 
						% | 
						  | 
						  | 18,662 | 
						  | 18,746 | 
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						08/11/14 |  
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						6 Becker, 85 Livingston, | 
						Wachovia CMBS | 
						  | 10.220 | 
						% | 
						  | 
						  | 63,392 | 
						  | 63,126 | 
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						08/11/14 |  
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						75 Livingston & | 
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						20 Waterview | 
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						4 Sylvan | 
						Wachovia CMBS | 
						  | 10.190 | 
						% | 
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						  | 14,498 | 
						  | 14,485 | 
						  | 
						08/11/14 |  
				| 
						10 Independence | 
						Wachovia CMBS | 
						  | 12.440 | 
						% | 
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						  | 16,343 | 
						  | 16,251 | 
						  | 
						08/11/14 |  
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						4 Becker | 
						Wachovia CMBS | 
						  | 9.550 | 
						% | 
						  | 
						  | 38,393 | 
						  | 38,274 | 
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						05/11/16 |  
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						5 Becker | 
						Wachovia CMBS | 
						  | 12.830 | 
						% | 
						  | 
						  | 12,623 | 
						  | 12,507 | 
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						05/11/16 |  
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						210 Clay | 
						Wachovia CMBS | 
						  | 13.420 | 
						% | 
						  | 
						  | 12,392 | 
						  | 12,275 | 
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						05/11/16 |  
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						51 Imclone | 
						Wachovia CMBS | 
						  | 8.390 | 
						% | 
						  | 
						  | 3,876 | 
						  | 3,878 | 
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						05/11/16 |  
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						Various (b) | 
						Prudential Insurance | 
						  | 6.332 | 
						% | 
						  | 
						  | 148,840 | 
						  | 149,281 | 
						  | 
						01/15/17 |  
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						23 Main Street | 
						JPMorgan CMBS | 
						  | 5.587 | 
						% | 
						  | 
						  | 30,289 | 
						  | 30,395 | 
						  | 
						09/01/18 |  
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						Harborside Plaza 5 | 
						The Northwestern Mutual Life | 
						  | 6.842 | 
						% | 
						  | 
						  | 227,666 | 
						  | 228,481 | 
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						11/01/18 |  
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						Insurance Co. & New York Life  | 
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						Insurance Co. | 
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						223 Canoe Brook Road | 
						The Provident Bank | 
						  | 4.375 | 
						% | 
						  | 
						  | 3,928 | 
						  | 3,945 | 
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						02/01/19 |  
				| 
						100 Walnut Avenue | 
						Guardian Life Insurance Co. | 
						  | 7.311 | 
						% | 
						  | 
						  | 18,968 | 
						  | 19,025 | 
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						02/01/19 |  
				| 
						One River Center (c) | 
						Guardian Life Insurance Co. | 
						  | 7.311 | 
						% | 
						  | 
						  | 43,453 | 
						  | 43,582 | 
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						02/01/19 |  
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						Total mortgages, loans payable and other obligations | 
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						$ | 757,700 | 
						$ | 757,495 | 
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| 
				 (a)
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			Reflects effective rate of debt, including deferred financing costs, comprised of the cost of terminated treasury lock agreements (if any), debt initiation costs, mark-to-market adjustment of acquired debt and other transaction costs, as applicable. | 
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				 (b)
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			Mortgage is collateralized by seven properties. The Operating Partnership has agreed, subject to certain conditions, to guarantee repayment of a portion of the loan.  | 
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				 (c)
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			Mortgage is collateralized by the three properties comprising One River Center.  | 
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