None of CommonWealth, the tender agent, the information agent, or the Dealer Managers makes any recommendation as to whether holders of Senior Notes referred to in this press release should tender their Senior Notes in the Offer. This press release is for informational purposes only and is not an offer to buy, or the solicitation of an offer to sell, any of the Senior Notes. The full details of the Offer for the Senior Notes, including complete instructions on how to tender Senior Notes, will be included in the offer to purchase, the letter of transmittal and related materials. Holders are strongly encouraged to read carefully the offer to purchase and letter of transmittal and any other related materials, including materials filed with the Securities and Exchange Commission and incorporated by reference therein, because they will contain important information.Holders may obtain a copy of the tender offer documents, free of charge, from Global Bondholder Services Corp., the tender agent and information agent in connection with the Offer, by calling toll-free at (866) 952-2200 (bankers and brokers can call collect at (212) 430-3774). Holders are urged to carefully read these materials prior to making any decisions with respect to the Offer. WARNING CONCERNING FORWARD LOOKING STATEMENTS THIS PRESS RELEASE CONTAINS FORWARD LOOKING STATEMENTS WITHIN THE MEANING OF THE SECURITIES LAWS. THESE FORWARD LOOKING STATEMENTS ARE BASED UPON COMMONWEALTH’S PRESENT BELIEFS AND EXPECTATIONS, BUT THESE STATEMENTS ARE NOT GUARANTEED. FOR EXAMPLE, ALTHOUGH THIS PRESS RELEASE REFERS TO AN OFFER FOR A MAXIMUM OF $450,000,000 OF SENIOR NOTES, COMMONWEALTH MAY PURCHASE FEWER SENIOR NOTES, TERMS OF THE OFFER MAY CHANGE OR THE OFFER MAY BE TERMINATED. IN ADDITION, THE OFFER IS SUBJECT TO A FINANCING CONDITION THAT MAY NOT BE COMPLETED. INVESTORS SHOULD NOT PLACE UNDUE RELIANCE UPON ANY FORWARD LOOKING STATEMENT. A Maryland Real Estate Trust with transferable shares of beneficial interest listed on the New York Stock Exchange. No shareholder, Trustee or officer is personally liable for any act or obligation of the Trust.