 NEWTON, Mass.--BUSINESS WIRE--Diversified Healthcare Trust Nasdaq: DHC today announced that it has been recognized as a Gold-level 2021 Green Lease Leader during the U.S. Department of Energys DOE annual Better Buildings, Better Plants Summit, taking place virtually May 17-20, 2021. Developed by the Institute for Market Transformation and the U.S. DOE Better Buildings Alliance, the Green Lease Leader program sets national standards for green leasing and recognizes landlords and tenants w 