Marc has been an international and commercial litigation and arbitration lawyer in New York for all of his 27-year career, and in recent years has expanded his practice to include service as arbitrator and mediator in international and domestic cases. His cases have ranged from disputes between investors and foreign states, to securities and banking litigations, antitrust, securities, sports and entertainment, distribution, enforcement of foreign judgments, enforcement of foreign arbitration awards, copyright and other intellectual property disputes (especially those involving music), telecommunications, and commercial real estate.