William Marks is a partner in the Supreme Court & Appellate Litigation Group. He has extensive experience advocating before the U.S. Supreme Court, the federal courts of appeals, and state appellate courts. Will has represented clients with appellate expertise at trial and regularly advises clients on substantive legal strategy in their most complex and difficult litigation matters.
Will’s work has involved a variety of subject matter areas, including antitrust, securities, arbitration, class certification, intellectual property, commercial litigation, constitutional law and federal court procedure. Will has particular expertise before the U.S. Supreme Court, where he has litigated dozens of matters. Of particular note, he has represented parties in 19 merits cases, successfully petitioning for certiorari in 10 of them.
Will is Recommended by Legal 500 for the “Appellate: Courts of Appeal” (2025) and “Appellate: Supreme Courts (States and Federal)” (2025). Will has also been selected as a Rising Star by Super Lawyers from 2020 to 2025.
After law school, Will clerked for Judge Jeffrey S. Sutton on the Sixth Circuit.
William’s significant representations includes:
- ExxonMobil in a Supreme Court case concerning jurisdiction over tort suits seeking to recover damages for global climate change.
- Meta in a Supreme Court case regarding the circumstances under which statements in risk disclosures can be false or misleading under the securities laws.
- Henry Schein in a Supreme Court case involving the enforcement of a contractual provision delegating questions of arbitrability to an arbitrator.
- The State of Oklahoma in a case concerning jurisdiction over crimes committed by non-Native Americans against Native Americans in Indian country.
- The National Football League in a Nevada Supreme Court appeal concerning the arbitrability of a dispute with a former head coach.
