Bar Admissions

  • U.S. Supreme Court, 1988
  • New York, 1974
  • U.S. District Court Western District of New York, 1974


  • State University of New York at Oneonta, Oneonta, New York, B.A., 1968
  • University at Buffalo Law School, Buffalo, New York, J.D., 1973

Professional Association

  • New York State Bar Association (Entertainment, Art and Sports Law Section; Executive Committee)
  • Lawyers For The Arts of Western New York
  • Erie County Bar Association (Committees: Federal Courts, Intellectual Property, past chair)

Community Involvement

  • University at Buffalo School of Law, Law Alumni Association, past president
  • Locust Street Neighborhood Art Classes, advisor
  • Jewish Repertory Theatre of WNY, advisor
  • Jewish Community Center of Buffalo, board of directors, 2016–present

Professional Recognition

  • AV Rated "Preeminent" by Martindale-Hubbell, 2022
  • Selected by Super Lawyers Corporate Counsel Edition, 2010
  • Selected by New York Super Lawyers Upstate Edition 2008–2009, 2012–2016
  • Inducted into the Buffalo Music Hall of Fame, Class of 2021

News & Presentations

  • "The Right of Publicity: Not Just for the Living Anymore;" presented in conjunction with the Erie County Bar Association’s Erie Institute of Law Program; May 7, 2021
  • "Intellectual Property Considerations in Estate Planning and Estate Administration", Estate Analysts of Western New York, October 2, 2019
  • "Contract and Copyright Basics for Producers, Recording Artists and Composers", Black Music Month Conference and Awards, Millennium Hotel, June 22, 2019
  • "Intellectual Property Considerations for New Businesses", Entrepreneurship Law Center Practicum, UB Law School, April 30, 2019
  • "Copyright Concerns for Artists", UB Law School, Copyright Law class, November 12, 2018
  • "Rights of Publicity and Morals Clauses", UB Law School, Sports Law class, October 23, 2018
  • "Contract Issues for Visual and Performing Artists", Castellani Art Museum of Niagara University, September 8, 2017
  • “Trademark Basics for Attorneys,” Erie County Bar Association Continuing Legal Education Program, November 2016
  • “Artist As Entrepreneur Bootcamp,” New York Foundation for the Arts, New York State Council for the Arts and Arts Services Initiative of Western New York, Inc., speaker, October 21, 2016
  • “Basics of Music Law,” presented at Music is Art/Music Industry Workshop, April 5, 2016
  • “Sports and Entertainment Law: Perspectives from the Sports Agent, League In-House Counsel and the Entertainment Lawyer,” speaker, Minority Bar Association of WNY, October 20, 2015
  • "Rights of Publicity" You And The Law Radio Show, September 2015

Leslie Mark Greenbaum has been an attorney with the firm since 1978. He concentrates his practice in the areas of copyright, trademark, entertainment, art and sports law, unfair competition, internet law and related litigation. He is admitted to practice in all State and Federal courts in the State of New York and to the United States Supreme Court.

For several Western New York arts and community organizations, Les is a member of the board and/or an advisor. He frequently lectures to professional and general audiences in his areas of concentration.

AV Preeminent Peer Rated 20172012 Who's Who in Law