Office Properties Income Trust is a real estate investment trust (REIT). The Company is focused on owning and leasing office and mixed-use properties in select, growth-oriented United States markets. Its primary investment objectives include increasing cash flows from operations from stable and diverse sources. It seeks to acquire properties or portfolios that enhance its overall portfolio composition and produce greater returns than those properties or portfolios it may sell. Its wholly owned properties comprise 152 properties containing approximately 20.5 million rentable square feet. Its properties were leased to over 258 different tenants. Its properties include 445 Jan Davis Drive; 131 Clayton Street; 4344 Carmichael Road; 711 S14th Avenue; Folsom Corporate Center; 100 Redwood Shores Parkway; 100 Redwood Shores Parkway; 7958 South Chester Street; 12795 West Alameda Parkway; 20 Massachusetts Avenue, and others.