WILLIAM LEVI is a partner in Sidley’s Regulatory Litigation practice group, and represents clients in a broad range of appeals, complex commercial litigation, regulatory disputes, and government enforcement actions. Will has experience representing clients at each level of the federal judiciary, as well as before federal administrative agencies and in state courts. He has litigated a diverse range of issues, including federal jurisdiction, class certification, foreign sovereign immunity, federalism, bankruptcy, preemption, antitrust, arbitration, administrative law, environmental law, labor and employment law, tort law, securities and corporate law, contract rights, criminal law and procedure, free speech, religious freedom, and other constitutional and regulatory issues. He also regularly advises clients on strategic legal issues arising from litigation, congressional subpoenas and legislation, and government regulation and investigations. In recognition of his success, Will was named among an elite group of lawyers as a 2023 “D.C. Rising Star” by The National Law Journal.
Before rejoining Sidley, Will served as Chief of Staff and Senior Counselor to the Attorney General at the U.S. Department of Justice. In that role, Will acted as the principal counselor to the Attorney General, and had broad responsibilities, including oversight of a wide range of high-profile civil litigation, criminal investigations and prosecutions, and national security matters. In recognition of outstanding service to the Department, Will was awarded the Department of Justice’s highest honor, the Edmund J. Randolph Award.
He also previously served as Chief Counsel of the U.S. Senate Judiciary Committee’s Subcommittee on Antitrust, Competition Policy, and Consumer Rights, which oversees the federal antitrust enforcement agencies and reviews major proposed mergers affecting the national economy.
Following law school, Will clerked for U.S. Supreme Court Justice Samuel A. Alito, Jr. and U.S. Court of Appeals for the Third Circuit Judge Anthony J. Scirica. By appointment of the U.S. Court of Appeals for the D.C. Circuit, Will serves as a member of the Court’s Advisory Committee on Procedures. He is also a member of the Administrative Law & Government Litigation Advisory Committee of the U.S. Chamber Litigation Center, a member of the nominating committee for the William H. Webster Profiles in Leadership Award for Prosecution, and a former term member of the Council on Foreign Relations.