About
Patrick R. Hanes is a highly skilled attorney focusing on complex legal disputes, white-collar defense, and corporate investigations. As a partner, he co-chairs the White Collar and Investigations Team and is a key member of the Litigation Section. With extensive experience in both civil and criminal litigation, Patrick represents businesses and individuals in regulatory, antitrust, fraud, and corporate compliance matters. His legal expertise spans trial and appellate advocacy, making him a trusted advocate for clients facing high-stakes litigation.
Patrick earned his J.D. from the University of Virginia School of Law, where he was a member of the Virginia Law Review and served on the Editorial Board. He also holds a B.A. from the University of Virginia, where he was an Echols Scholar. His academic background provided him with strong legal reasoning skills, which he applies in his practice.
Patrick has built a distinguished career representing clients in complex litigation and regulatory matters. He has defended individuals and businesses in investigations by the Department of Justice, the Securities and Exchange Commission, and other regulatory agencies. His practice includes advising corporate executives, boards of directors, and general counsel on critical legal issues ensuring compliance with federal and state laws.
In addition to litigation, Patrick has conducted internal corporate investigations in the U.S. and internationally. His experience spans financial fraud, securities violations, and antitrust matters. He has also worked extensively on intellectual property cases, representing clients in patent and trademark disputes. His deep knowledge of regulatory and corporate law allows him to provide sound legal counsel to businesses navigating complex legal challenges.
Patrick R. Hanes’s strategic legal approach has helped clients resolve disputes efficiently. He has successfully argued cases before federal and state courts, including the U.S. Courts of Appeals and the Supreme Court of Virginia. His expertise in compliance, risk assessment, and litigation strategy makes him a trusted advisor for companies and individuals seeking strong legal representation.
Law Office Affiliations
- Partner, Williams Mullen
- Member, Federal Bar Association
- Co-Chair, American Bar Association
- Judiciary Committee, Richmond Bar Association
- Member, Virginia State Bar
- Member, Virginia Bar Association
- Member, American Intellectual Property Law Association
Licensed State
- Virginia
- West Virginia
- District of Columbia
Education
- University of Virginia School of Law
Juris Doctor (JD) - University of Virginia
Bachelor of Arts (BA)
Awards & Badges






- Administrative law
- Antitrust and trade law
- Litigation
- White collar crime