DLA Piper is advising Shanghai-based developer Greenland Holding Group Co. on its $5 billion acquisition of a majority stake in Brooklyn’s Atlantic Yards project, the largest U.S. real estate investment by a Chinese company to date.

Chinese state-owned Greenland is acquiring a 70 percent stake in a joint venture with New York area developer Forest City Ratner Cos. to build a 15-tower mixed-use project that includes offices, retail, and residential space.