Leonid Feller is a partner in Quinn Emanuel’s Chicago office. A former federal prosecutor, Lenny is an experienced trial lawyer, serving as lead counsel in dozens of federal and state court jury trials, appeals, and arbitrations across the country. In his government investigations practice, Lenny has defended companies and individuals before the Department of Justice (DOJ), the Securities and Exchange Commission (SEC), the Federal Trade Commission (FTC), and State Attorneys General around the country. In his complex litigation practice, Lenny has represented clients in antitrust cases, False Claims Act suits, consumer class actions, mass tort and product liability litigation, and various other types of disputes in federal and state courts nationwide and before the Judicial Panel on Multidistrict Litigation (JPML). Lenny also has an active pro bono practice and has secured the exoneration and release of several wrongly convicted defendants.
Lenny has been widely recognized for his work in both criminal defense and civil litigation. He has been named as an Illinois Super Lawyer for White Collar Criminal Defense by Super Lawyers Magazine, a Leading Plaintiff Financial Lawyer by Lawdragon 500, and to the Criminal Defense Top 100 by the National Trial Lawyers.
In addition to his law practice, Lenny has served as a lecturer at the University of Michigan Law School since 2009, where he has taught courses on federal criminal prosecution, investigation, and defense. He is the co-author of Criminal Pretrial Advocacy 3d Ed. (West 2019) and numerous other scholarly works.