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Mark began his career as an attorney-advisor with the Interstate Commerce Commission, Washington, D.C. Thereafter, he practiced as a trial attorney with the National Labor Relations Board, St. Louis, Missouri from 1976 through 1980. He became associated with the predecessor firm to Laner Muchin, Ltd. in 1980 and became a partner in 1984. He became Of Counsel to the Firm in 2013. He is a chapter author of Labor Law For The General Practitioner published by the Illinois Institute for Continuing Legal Education and a contributing author to the Developing Labor Law.


  • AV Peer Rating Martindale Hubble
  • Selected as an “Illinois Super Lawyer” in labor and employment law
  • Selected as an “Illinois Leading Lawyer” in labor law (management)
  • Member, American Bar Association, serves on Committee on Development of Law under the National Labor Relations Act and the Labor Law Committee
  • National Commission of the Anti-Defamation League and Past Chairman of the Chicago Midwest Region of Anti-Defamation League



For over 40 years Mark has served labor counsel for numerous private and public employers throughout the country:

Negotiating labor contracts.

Providing labor relations counseling.

Representing management in labor arbitrations.


Washington University, College of Law, J.D. 1975

Miami University (Oxford, Ohio), B.A. Economics (with honors) 1972


  • Illinois
  • U.S. District Court for the Northern District of Illinois
  • U.S. Circuit Court of Appeals, 7th Circuit
  • U.S. Court of Appeals for the District of Columbia
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