Plunkett Cooney partner Frank T. Mamat recently joined National Arbitration and Mediation (NAM) as a hearing officer.

NAM is one of the nation's leading full-service providers of Alternative Dispute Resolution services and as a member of their esteemed panel, Mamat will be available to arbitrate and mediate cases throughout Michigan.

For more than 30 years, NAM has been supporting clients throughout the United States and in major cities around the world through a highly secure suite of onsite, virtual and hybrid forums. NAM offers a streamlined alternative to traditional litigation with an exceptional roster of neutrals and concierge-level case administration who are used by more than10,000 commercial entities and half the Fortune 100.

A partner of Plunkett Cooney, one of the Midwest’s oldest and most accomplished law firms, Mamat utilizes his more than 50 years of experience to help companies, contractors, employers, lawmakers and trade associations resolve union matters. His expertise includes contract negotiations, elections, union avoidance and labor arbitrations. He also advises clients on noncompete agreements, unfair labor practice litigation, harassment suits, wage and hour issues, OSHA-MIOSHA safety matters and entertainment law. He is also a registered lobbyist.

In addition, Mamat’s experience includes the resolution of National Labor Relations Board matters, attempted union organization, mass picketing and violence, and secondary boycotts and pressure. His clients also rely on his counsel and advice on ERISA trust funds and related fiduciary liabilities.

Mamat has been honored by several other media and peer review platforms, including Best Lawyers in America, Michigan Super Lawyers, DBusiness magazine’s Top Lawyers, the Labor Relations Institute, American Lawyer magazine and the American Registry, as well as to the 2025 class of Go To Lawyers in employment law as determined by Michigan Lawyers Weekly.

Mamat received his undergraduate degree from the University of Rochester in 1971 and his law degree from Syracuse University College of Law in 1974.

The members of Plunkett Cooney’s Alternative Dispute Resolution Practice Group are experienced litigators who are skilled at representing clients in both arbitrations and facilitative mediations and at selecting the right neutral to become involved in cases. Recognized and trusted by their peers, the firm’s attorneys are subject experts in a range of practice areas from employment and product liability to commercial liability and personal injury law.

Established in 1913, Plunkett Cooney is a leading provider of business and litigation services to clients in the private and public sectors. The firm employs attorneys in seven Michigan cities, Chicago, Illinois, Indianapolis, Indiana and Columbus, Ohio.

Plunkett Cooney has achieved the highest rating (AV) awarded by Martindale-Hubbell, a leading, international directory of law firms as well as recognition by Best Lawyers as one of the nation’s leading law firms in 2026. The firm has also earned Mansfield Rule Certification Plus 2024-2025 for midsize law firms, which recognizes leaders in DEI within the legal industry.

For more information about Mamat's role as a hearing officer with NAM, contact John Cornwell of the firm’s Practice Development Department at (248) 901-4008; jcornwell@plunkettcooney.com.

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