Mr. Hennigan is a founding partner of HBD, and is the head of the Complex Litigation department. Mr. Hennigan specializes in the litigation and trial of complex commercial cases, and has been lead counsel in more than 45 major jury trials in state and federal court. As lead trial counsel for plaintiffs, Mr. Hennigan has litigated judgments and settlements of more than $8 billion for his clients.
Mr. Hennigan is a Fellow of the American College of Trial Lawyers. Mr. Hennigan is listed in prominent legal publications, including Chambers USA Guide, Chambers Global Who’s Who in American Law and The Best Lawyers in America, and is routinely identified as one of Southern California’s “Super Lawyers.”
Professional Affiliations
- Lawyer Representative, Ninth Circuit Judicial Conference, 1993-1997
- Board of Visitors, University of Arizona College of Law, 1976-1979; and 1990-present
- Board of Directors, University of Arizona Law College Association, 1983-1985
- Trustee, Los Angeles County Bar Association
- Fellow of the American College of Trial Lawyers
- Chair, Executive Committee, Litigation Section, Los Angeles County Bar Association, 1998
- Chair, Litigation Section, Los Angeles County Bar Association, 1998-1999
- Member, American Bar Association sections on Antitrust Law and Litigation
- American Board of Trial Advocates, 1992-present
- American Law Institute, 1993-present
- Judicial Council Task Force on Complex Civil Litigation