Photo of Jeff Warshafsky

Jeff Warshafsky is a partner in the Litigation Department. A versatile commercial litigator and strategic advisor, Jeff specializes in consumer class actions, sports litigation, false advertising, trademark, and other intellectual property disputes.

Jeff defends companies in connection with consumer class actions involving advertising and privacy issues. He has handled dozens of class actions around the country for multinational companies across diverse sectors including consumer product companies, retailers, and sports leagues. Jeff also counsels clients to avoid being targeted in such actions, helps them respond to demand letters from plaintiffs’ counsel, and negotiates resolutions.

Additionally, Jeff represents clients in competitor versus competitor advertising disputes, including in Lanham Act cases and advertising self-regulation disputes before the National Advertising Division and the National Advertising Review Board. He also counsels companies on advertising substantiation issues, with an emphasis on complex scientific testing, such as clinical trials and sensory testing. Jeff regularly advises major sports leagues on complex business disputes.

Jeff maintains a robust pro bono immigration practice, assisting clients with asylum and U-Visa applications and in connection with removal proceedings. In addition to his active practice, Jeff is an editor of and contributor to the Firm’s false advertising blog, Watch This Space: Proskauer on Advertising Law.

  • Central District of California dismisses lawsuit alleging that a third-party’s interception of communications over a website’s live chat feature violated California’s wiretapping and eavesdropping prohibitions.  
  • Important to the Court’s holding was its finding that the code used by the third party to acquire and transmit the contents of the chat communications was not necessarily used to intercept the communications while they were “in transit” but rather to store them after they were received.