Jason Kleinwaks

Associate Washington, D.C.


Jason Kleinwaks
Jason Kleinwaks is a former federal prosecutor and associate in Weil’s Washington, D.C. office, where he focuses his practice on high-stakes, complex commercial litigation and government investigations.

Jason litigates complex commercial disputes and class actions in courts across the country and before arbitration panels.  He has broad experience defending clients against a wide variety of claims, including alleged RICO violations, antitrust violations, securities fraud, ERISA violations, breach of contract, and various business torts. Jason also represents clients in white collar and government investigations, including in matters related to the Anti-Kickback Statute, Foreign Corrupt Practices Act, False Claims Act, and U.S. sanctions. Jason has earned his Certified Information Privacy Professional (CIPP/US) credential and is particularly interested in matters involving cutting-edge data privacy and cybersecurity issues. 

Prior to joining Weil, Jason served as an Assistant United States Attorney in the Northern District of California, where he was a member of the office’s Organized Crime Drug Enforcement Task Force (OCDETF) unit and General Crimes unit. As an AUSA, Jason investigated and prosecuted an array of offenses involving drug trafficking, firearms, fraud, money laundering, child exploitation, and armed robbery. A number of these investigations carried a digital component, including online child exploitation, darknet narcotics trafficking, and cryptocurrency laundering.

Jason previously served as a law clerk to the Honorable Gerald A. McHugh of the United States District Court for the Eastern District of Pennsylvania and, later, to the Honorable Thomas I. Vanaskie of the United States Court of Appeals for the Third Circuit. He earned his J.D., cum laude, from the University of Pennsylvania Law School, where he was a Senior Editor of the University of Pennsylvania Law Review and a member of the Moot Court Board. He received his B.S. in Finance with High Distinction from Pennsylvania State University.

*experience includes matters handled prior to joining Weil

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