Since 2007, Lichtenstein has been responsible for some of the largest acquisitions and sales in the retail and hospitality sectors. In 2007, The Lightstone Group acquired Extended Stay Hotels for $8.1 billion and sold Prime Retail in 2010 for $2.1 billion, earning a large profit on the outlet mall group. Lichtenstein has more recently been involved in New York City real estate and is playing a large role in the redevelopment of Brooklyn and the Gowanus Canal area of the borough.