Office Properties Income Trust is a real estate investment trust that owns and leases office properties across the United States, operating a diversified portfolio of wholly-owned buildings and partnership interests representing millions of rentable square feet across multiple states. The company generates revenue through long-term rental agreements with hundreds of tenants, including the U.S. government as its largest single customer, supplemented by tenant expense reimbursements and other lease-related income. OPI faces structural challenges from industry headwinds including remote work adoption and corporate real estate consolidation, which have pressured occupancy rates and rental rates, and the company manages its portfolio through selective dispositions and reinvestment while relying on operating cash flows, credit facilities, and debt capital markets for funding.