

About
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
Overview
Practice focus
Firm
Office details
Location
Los Angeles, CA 90071
Services
Practice areas
Languages
Civil Litigation Insights

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Credentials
Bar admissions
- California, The State Bar of California
- Arizona, State Bar of Arizona
Education
- The University of Arizona, J.D., graduated 1970
Affiliations
- American Bar Association - Member
- Arizona Law Review - Note and Comment Editor
- Los Angeles County Bar Association - Member