Marc serves as counsel to national trade and professional associations and foundations in the fields of automotive parts, grain handling and export, higher education, credit counseling, and domestically produced athletic and waterproof plastic and rubber footwear.

Marc has been lead counsel in major regulatory matters and litigation throughout the country, as well as appellate challenges to federal agencies’ regulations.

Marc also has extensive antitrust counseling and litigation experience. He has represented numerous clients in matters related to the Sherman Act, the Robinson-Patman Act, and intellectual property.

Marc has published approximately 30 articles in legal and other periodicals and has spoken extensively before bar and employer groups. He is listed in Who’s Who in the World, Who’s Who in America, Who’s Who in American Law, and Who’s Who in the East.