 COLUMBIA, Md.--BUSINESS WIRE--Corporate Office Properties Trust COPT or the Company NYSE: OFC announced that its operating partnership, Corporate Office Properties, L.P. the Issuer, has commenced a cash tender offer for any and all of the Issuers 5.250 Senior Notes due 2024, CUSIP No. 22003B AH9, fully and unconditionally guaranteed by COPT the Notes on the terms and subject to the conditions set forth in the Offer to Purchase, dated the date hereof the Offer to Purchase 