LAWYER PROFILE
William J Maledon

William J Maledon

USA 2026

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Ranked in 1 practice area

About

Provided by Osborn Maledon PA

Practice Areas

Alternative Dispute Resolution & Mediation

Antitrust

Appeals

Commercial Litigation

Intellectual Property

Securities Defense

Professional Memberships

Ninth Circuit Advisory Board, 2014-Present

National Academy of Distinguished Neutrals, Member, 2017-Present

Work Highlights

Long v. Napolitano, 203 Ariz. 247, 53 P.3d 172 (App. 2002)

Toscano v. PGA TOUR, Inc., 201 F. Supp. 2d 1106 (E.D. Cal. 2002)

Aerotec Int’l, Inc. v. Honeywell Int’l Inc., 4 F. Supp. 3d 1123 (D. Ariz. 2014), aff’d 836 F.3d 1171 (9th Cir. 2016)

(summary judgment in favor of defendant on all claims, including monopolization, exclusive dealing, tying, and price discrimination)

Experience

Bill Maledon is amongst the most esteemed commercial litigation and trial attorneys in Arizona and across the United States, and has built a widely recognized reputation for leading large-scale and complex commercial matters. He is a prominent figure both in federal and state courts, with notable expertise in antitrust, securities, and sports-related matters. He also has extensive experience in handling appellate matters in both federal and state courts and has acted as mediator and arbitrator in cases of local and national significance.

Highly decorated throughout his career, he has been consistently recognized by Chambers as a Leading Lawyer for Business over the last 20 years in addition to being named amongst a selective group of “top tier” business litigation attorneys in Arizona and trial attorneys across the nation. He has been included in Best Lawyers® for more than 30 years and has been named Lawyer of the Year by the same organization in a variety of categories.

His experience at both the trial and appellate levels has resulted in his appointment to numerous distinguished committees, including the Arizona Supreme Court Committee to revise jury trial procedures in Arizona, the Federal Rules Standing Committee (to which he was twice appointed by the Chief Justice of the U.S. Supreme Court), and the Ninth Circuit Advisory Committee.

To view Bill Maledon’s availability on mediation and arbitration matters, please visit: https://www.nadn.org/william-maledon.

Education

University of Notre Dame

J.D., summa cum laude

1972

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Litigation: General Commercial - Arizona

Senior Statesperson
Senior Statespeople

Individual Editorial

William Maledon comes highly recommended for his strength across a range of civil disputes, including antitrust and matters involving constitutional and statutory laws. His practice includes defending against large-scale class and collective actions.

Strengths

Provided by Chambers

  • Bill Maledon is the most impressive attorney I have ever worked with. He has an extraordinary legal mind, is a tactical master, and is probably the most respected litigator and adviser anywhere in the Western U.S.

    Litigation: General CommercialChambers Guide to the USA

Ranked Individuals at Osborn Maledon PA (15)

Arizona

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