 COLUMBIA, Md.--BUSINESS WIRE--Corporate Office Properties Trust COPT or the Company NYSE: OFC is establishing the following guidance for the year ending December 31, 2021: Diluted earnings per share EPS in the range of 0.760.82; and Diluted FFO per share FFOPS, as defined by Nareit and as adjusted for comparability, in the range of 2.162.22. For the quarter ending March 31, 2021, the Company is establishing the following guidance: EPS in the range of 0.190.21; and FFO 