A former general counsel for insurance brokerage Marsh & McLennan Cos. and the former RJR Nabisco Inc. has joined Akin Gump Strauss Hauer & Feld as head of its Beijing office.

William Rosoff was most recently a mergers and acquisitions partner in the New York office of Philadelphia’s Cozen O’Connor. He joined that firm in 2009 from the New York office of O’Melveny & Myers, where he was also a partner.