Press Releases


4 former Dinsmore labor, employment law attorneys join Plunkett Cooney


Plunkett Cooney, one of the Midwest’s oldest and most accomplished law firms, recently expanded its Labor & Employment Law Practice Group with the addition of four attorneys from the national law firm Dinsmore.

Frank T. Mamat, Dennis R. Boren, Erik G. Bradberry and Brian K. Mitzel have joined the firm’s Bloomfield Hills office.

A partner of the firm, Mamat utilizes his more than 50 years of experience to help companies, contractors, employers, lawmakers and trade associations resolve union matters, including contract negotiations, elections, union avoidance and labor arbitrations. He advises clients on noncompete agreements, unfair labor practice litigation, harassment suits, wage and hour issues and OSHA-MIOSHA safety matters.

Mamat’s experience also includes the resolution of National Labor Relations Board matters, attempted union organization, mass picketing and violence, and secondary boycotts and pressure. Additionally, he advises clients on ERISA trust funds and related fiduciary liabilities.

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

An of counsel member of the firm, Boren focuses his practice on traditional labor law. He specializes in advising employers on compliance with the National Labor Relations Act, collective bargaining negotiations and arbitration proceedings.

Boren spent more than 40 years of his legal career in various attorney positions with the National Labor Relations Board, including 15 years serving as the regional attorney for the Michigan Region 7.

Boren received his undergraduate degree, with distinction, from Wayne State University in 1974 and law degree from Wayne State University Law School in 1977.

Bradberry concentrates his practice in the areas of labor and employment law, labor law and litigation. Admitted to practice in Colorado and Michigan, he represents organizations and individual clients in labor and employment law matters in Michigan’s state and federal courts.

A former educator, Bradberry has expertise in education law, resolving teacher licensing issues, employee discipline, accommodations and employment policies. His labor law practice representing employers in matters before the National Labor Relations Board, as well as at the bargaining table and in arbitration.

Bradberry received his master’s and law degrees from the University of Denver and its Sturm College of Law in 2005 and 2016, respectively.

Rounding out Plunkett Cooney’s new group of labor and employment attorneys is Mitzel, who concentrates his practice primarily on the defense of clients involved in employment liability litigation, as well as regulatory disputes that result in actions by the Equal Employment Opportunity Commission and Michigan Department of Civil Rights.

In addition to his employment law practice, Mitzel has extensive experience defending clients in matters involving premises liability, property and casualty claims and general liability, as well as professional liability lawsuits brought against architects, engineers and certified public accountants.

Mitzel received his law degree, cum laude, in 2016 from University of Detroit Mercy School of Law. He received his undergraduate degree, cum laude, from Wayne State University in 2013.

The members of Plunkett Cooney’s Labor and Employment Law Practice Group provide a full range of employment-related legal services exclusively for employers, including human resources counseling, litigation defense representation, alternative dispute resolution, labor law assistance, investigations, and regulatory compliance review and defense.

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 approximately 130 attorneys in seven Michigan cities, Chicago, Illinois, Indianapolis, Indiana and Columbus, Ohio.

For more information regarding Mamat, Boren, Bradberry and Mitzel joining Plunkett Cooney’s Labor and Employment Law Practice Group, contact the firm’s Director of Marketing and Business Development John Cornwell at (248) 901-4008;

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