Futerfas has represented clients in a number of high-profile organized crime cases, including New York Mafia clients connected to the Colombo, Gambino, and Genovese families.[7] He represented Mafia hitman Gregory Scarpa.[9] In the late 1990s, he transitioned to largely handling white-collar cases, U.S. Securities and Exchange Commission (SEC) investigations and other regulatory matters.[10] In the early 2000s, Futerfas represented Christine Berry, art consultant to ex-Tyco International CEO L. Dennis Kozlowski, in connection with an investigation that led to a larger case against Kozlowski.[6]
Futerfas was also the attorney for Ziv Orenstein, one of three Israeli citizens indicted in 2015 on charges of being part of a cybertheft ring that stole customer data from JPMorgan Chase and Dow Jones & Co. the previous year as part of a huge "pump and dump" scheme.[6][11] In a separate cybercrime case, Futerfas represented Nikita Kuzmin, a Russian national who created malware targeting bank accounts.[6][8]
Futerfas' firm has represented a Rikers Island female prisoner in a 2015 rights and sexual assault case.[12]