 NEWTON, Mass.--BUSINESS WIRE--Office Properties Income Trust Nasdaq: OPI today announced that it has acquired a Class A net leased office building totaling 150,000 square feet on 16 acres located in Fort Mill, SC for 35.1 million, excluding closing costs. The property is 100 leased for more than 10 years and serves as corporate headquarters for RoundPoint Mortgage Servicing Corp., a wholly owned subsidiary of Freedom Mortgage Company, one of the nations largest full-service mortgage comp 