You could say Retail Properties of America (formerly Inland Western Retail Real Estate Trust) is a bit of a shopaholic. The self-managed real estate investment trust (REIT) buys, owns, and operates one of the largest retail shopping center portfolios in the US, with more than 225 wholly or partially owned properties that include power centers, community centers, and lifestyle centers. Among its tenants are big-box stores, such as Best Buy, Ross Stores, and TJX Cos. It also has about 20 property management offices to serve its diverse client base with leasing, asset management, and property management services. The company went public in 2012. It was formerly sponsored by an affiliate of The Inland Group.