Meet Matthew Guarnieri

Matt Guarnieri is a Principal of Gupta Wessler, where he focuses on representing plaintiffs in Supreme Court, appellate, and complex litigation. Matt joins the firm from the Office of the Solicitor General at the U.S. Department of Justice, where he personally argued 13 cases in the U.S. Supreme Court—winning 10 of them—and authored more than 100 briefs at the certiorari and merits stages. Earlier in his career, Matt worked in the Department’s Office of Legal Counsel, where he was responsible for providing legal advice to the Executive Branch about a wide range of questions of federal law, including the separation of powers, and was awarded the Attorney General’s Distinguished Service Award for his contributions.