Exhibit 12.2

Brandywine Operating Partnership, L.P.
Computation of Ratio of Earnings to Combined Fixed Charges
(in thousands)

	For the years ended December 31,
	2006			2005			2004			2003			2002
Earnings before fixed charges:
Add:
Income (loss) from continuing operations	$	(15,059	)	$	39,262		$	59,118		$	82,068		$	52,820
Minority interest — partners’ share of consolidated real estate ventures		(270	)		154			(206	)		—			—
Fixed charges — per below		191,614			86,191			60,611			62,407			69,881
Less:
Capitalized interest		(9,537	)		(9,603	)		(3,030	)		(1,503	)		(2,949	)
Earnings before fixed charges	$	166,748		$	116,004		$	116,493		$	142,972		$	119,752
Fixed charges:
Interest expense (including amortization)	$	175,784		$	73,918		$	54,610		$	57,835		$	63,522
Capitalized interest		9,537			9,603			3,030			1,503			2,949
Proportionate share of interest for unconsolidated real estate ventures		6,293			2,670			2,971			3,069			3,410
Total Fixed Charges		191,614			86,191			60,611			62,407			69,881
Ratio of earnings to combined fixed charges		(b	)		1.35			1.92			2.29			1.71

(a)	Amounts for the years ended December 31, 2006, 2005, 2004, 2003 and 2002 have been reclassified to present properties sold. As a result, operations have been reclassified to discontinued operations from continuing operations for all periods presented.
(b)	Due to the registrant’s loss in fiscal 2006, the ratio coverage was less than 1:1. The registrant must generate additional earnings of $24,866 to achieve a coverage of 1:1. The losses in fiscal 2006 included significant depreciation of operating real estate and amortization of lease intangibles resulting from recent acquisitions.