Cleary Gottlieb Steen & Hamilton

Lev L. Dassin's practice focuses on complex commercial litigation, including white-collar criminal defense, crisis management,  regulatory enforcement and internal investigations.

Mr. Dassin joined the firm as a partner in 2009. Mr. Dassin teaches trial practice at Columbia University School of Law, where he has been a member of the adjunct faculty since 1999. He is frequently invited to speak on various topics related to corporate crime, terrorism, and trial practice, and has addressed, among other groups, the Federal Bar Council, the New York City Bar Association, the New York County Lawyers’ Association, the New York Council of Defense Lawyers, and the U.S. Army War College.

Mr. Dassin is a member of the Bar in New York and is admitted to practice before the U.S. Supreme Court, the U.S. Court of Appeals for the Second Circuit and the U.S. District Courts for the Southern and Eastern Districts of New York.

Mr. Dassin received a J.D. from New York University School of Law in 1990, where he served as the Developments Editor of the Law Review. Mr. Dassin received an undergraduate degree, magna cum laude and with Distinction In All Subjects, from Cornell University in 1987, where he was elected to Phi Beta Kappa. He served as a law clerk to the Honorable David N. Edelstein, United States District Judge for the Southern District of New York, from 1990 to 1992.