David C. Mahaffey is the managing partner of the Washington, D.C. office, as well as the co-leader of the Investment Management Group. Prior to joining Sullivan & Worcester, Mr. Mahaffey was Special Counsel in the Washington, D.C. office of Gibson, Dunn & Crutcher LLP. He previously served as Assistant General Counsel for Legislation and Investment Company and Adviser Regulation at the Securities and Exchange Commission and as Counsel to SEC Commissioner Aulana Peters.