Jenner & Block

Gabriel K. Gillett’s practice focuses on complex commercial litigation at both the appellate and trial levels.  He has authored or co-authored dozens of winning briefs across the country—from the United States Supreme Court to state trial courts—and argued appeals in federal and state courts.  He has also worked with clients and other stakeholders to develop long-term, outcome-oriented legal strategies to address multifaceted problems, and drafted complaints and critical motions in high-stakes cases.  He has significant experience in a wide variety of issue areas, including constitutional law, securities, administrative law, contract and commercial disputes, insurance, bankruptcy litigation, technology, privacy, land use, voting rights, and immigration.

Mr. Gillett is a member of the firm’s Appellate and Supreme Court Practice, as well as the Complex Commercial Litigation, Securities Litigation and Enforcement, and Media and First Amendment Practices.  Prior to joining Jenner & Block, Mr. Gillett practiced at a top firm in New York City, where he worked on appellate, constitutional, and complex commercial cases and focused on cases at the New York Court of Appeals and challenges to government action under C.P.L.R Article 78.  Earlier in his career, Mr. Gillett served as a law clerk for judges on the U.S. Court of Appeals for the Third Circuit and the U.S. District Court for the Southern District of New York.  He also worked in congressional investigations, political communications and research, and political campaigns.

Mr. Gillett is committed to pro bono legal work. He has secured trial-level and appellate victories for individuals and non-profit organizations in cases involving the First Amendment, the Fourth Amendment, immigration, and civil rights violations under 42 U.S.C. § 1983. He is a member of the Appellate Lawyers Association.