Susan C. Ervin, a futures, commodities and derivatives lawyer, is joining Davis Polk & Wardwell LLP as a partner in the firm’s Washington D.C., office. Ervin spent 15 years as an attorney for the Commodity Futures Trading Commission (CFTC), the last 10 of which she served in a senior capacity as Deputy Director and Chief Counsel of the CFTC’s Division of Trading and Markets. In that capacity, Ervin was responsible for the legal aspects of the CFTC’s regulatory programs for exchanges, clearing organizations, futures commission merchants, commodity pool operators, commodity trading advisors and other intermediaries. She left the CFTC at the end of 1997 to re-enter private practice, where she also advised on the derivatives activities of investment companies. In 2009, she returned to the public sector as an Attorney Fellow/Senior Advisor at the Securities and Exchange Commission, where she helped develop regulatory approaches to the derivatives markets. Ervin is the incoming chair of the Derivatives and Futures Law Committee of the American Bar Association and a past chair of the Futures and Derivatives Regulation Committee of the New York City Bar Association.