Subsequent Events

9 Months Ended

Sep. 30, 2011

Declaration of Dividends

Our board of directors declared the following dividends at its regularly scheduled board meeting held on October 26, 2011:



Class	Quarterly Amount/Share	Record Date	Payment Date
Common	$0.17	November 16, 2011	November 30, 2011
Preferred (per depositary share):
Series J	$0.414063	November 16, 2011	November 30, 2011
Series K	$0.406250	November 16, 2011	November 30, 2011
Series L	$0.412500	November 16, 2011	November 30, 2011
Series M	$0.434375	December 16, 2011	December 31, 2011
Series O	$0.523438	December 16, 2011	December 31, 2011

Portfolio Disposition Agreement

On October 20, 2011, we entered into a Purchase and Sale Agreement (the "Purchase Agreement"), pursuant to which we will sell a real estate portfolio consisting of 82 buildings that have an aggregate of 10.1 million square feet and comprise nearly all of our wholly owned office properties located in Atlanta, Chicago, Columbus, Dallas, Minneapolis, Orlando and Tampa. The purchase price, which was determined through arm's length negotiations between us and the buyer, will be $1.08 billion and we expect to recognize a net gain on sale. As of October 20, 2011, the Buyer had paid a nonrefundable earnest money deposit of $40.0 million. The closing of the transactions contemplated by the Purchase Agreement is subject to the satisfaction of certain customary closing conditions. Although there are no assurances that the conditions will be met or that the transaction will be consummated, the parties to the Purchase Agreement anticipate that the closing will occur on or about December 1, 2011.