William C. McCorriston co-founded M4 in 1989.  His practice areas focus on commercial litigation, complex and multi-district litigation, constitutional law, eminent domain, products liability, professional malpractice, and white collar criminal defense.

Mr. McCorriston has been recognized by the prestigious Best Lawyers in America every year since 1993.

Bar Admissions

• District of Columbia, 1973
• California, 1971
• Hawaii, 1970
• U.S. Supreme Court
• U.S. Court of Appeals, 9th Circuit
• U.S. District Court, District of Hawaii

Education

• LL.M. (1974) George Washington University National Law Center
• J.D. (1970) University of Oregon School of Law
• B.S. (1967) University of Oregon

Professional Associations and Memberships

• State Bar of California
• District of Columbia Bar
• Hawaii State Bar Association, President, 1988
• Hawaii Board of Examiners, 1974 - 1985
• American College of Trial Lawyers
• American Board of Trial Advocates
• American Bar Association

• Commercial Litigation
• Condemnation
• Products Liability, Personal Injury and Insurance Defense
• Professional Liability
• Alternative Dispute Resolution
• Appellate

White Collar Criminal Defense

Constitutional Law & Civil Rights

Administrative, Regulatory and Government Affairs

Honors and Awards

• Star Individuals - Ranked by Chambers USA - Litigation
• Benchmark - Local Litigation Star - Hawaii
• Super Lawyers - Top 25 Hawaii Super Lawyers
• LawDragon 500
• Hawaii’s Top Lawyers (Honolulu Magazine)
• The Best Lawyers in America
• Chambers & Partners USA - Star Litigator - Hawaii

• Articles on Litigation
• Tort Law Desk Reference (Daller) Hawaii Chapter

• Conducted Seminars, Litigation Topics
• Participated in Television and Print Media Forums

January 1, 2023 Best Lawyers in America Recognizes 14 M4 Attorneys for 2023

August 21, 2020 Best Lawyers in America Recognizes 15 M4 Attorneys for 2021

July 16, 2020 2020 Super Lawyers Recognizes 13 M4 Attorneys

August 15, 2019 Best Lawyers in America Recognizes 16 M4 Attorneys for 2020

July 13, 2019 2019 Super Lawyers Recognizes 14 M4 Attorneys

January 28, 2019 William McCorriston Speaks at the Book of Lists Reception

January 16, 2019 Associates Jordan Inafuku Invited to Participate in The Hawaii Federal Trial Academy

August 21, 2018 Best Lawyers in America Selects 14 M4 Attorneys for 2019

June 20, 2018 2018 Super Lawyers Recognizes 13 M4 Attorneys

May 20, 2018 2018 Chambers Recognizes M4 Attorneys and Practice Groups