Accor has sold two of its properties in New York and Philadelphia for $225 million. The sale, in which Accor remains a 25-percent shareholder, is part of a joint venture with GEM Realty Capital Inc. and Whitehall Street Real Estate Fund, The Associated Press reported. The group already owns Sofitel hotels in Chicago, Los Angeles, Miami, Minneapolis, San Francisco and Washington, D.C. Meanwhile, Sofitel has opened the Grand Sopot Hotel in Sopot, Poland. In redesigning the historic 1927 building, Sofitel upgraded the 126-room property to include high-tech amenities, a spa, private beach, casino and restaurant.