|Sunstone Hotel Investors, Inc. is a real estate investment trust (REIT). Its primary business is to acquire, own, asset manage and renovate full-service hotel properties in the United States. As of December 31, 2012, it owned 30 hotels, including four hotels that is classified as held for sale and included in discontinued operations due to their sale in January 2013, leaving 26 hotels held for investment. The 26 hotels are comprised of 11,632 rooms, located in 12 states and in Washington, D.C. Portfolio primarily consists of upper upscale hotels in the United States. Its hotels are operated under brand names, such as Marriott, Fairmont, Hilton, Hyatt and Sheraton. It also owns luxury, upscale and upper midscale hotels. In May 2013, Sunstone Hotel Investors Inc acquired Royal St Charles Hotel from St Charles Hotel Investors LLC.