Harry P. Trueheart, III

Harry Trueheart, the firm’s Chairman Emeritus, focuses his practice on helping clients resolve business disputes, particularly international disputes, through litigation, arbitration and mediation.

What do you focus on?

Dispute Resolution

I litigate a wide range of business disputes from investment, to M&A to competition, accounting and technology issues in courts and in arbitrations. I have particular experience in international arbitration, representing both businesses and governments in disputes involving major energy projects, development projects and privatizations among other matters.


I regularly serve as an arbitrator and mediator. I am a Fellow of the Chartered Institute of Arbitrators, a Fellow of the College of Commercial Arbitrators, an arbitrator for the American Arbitration Association and ICDR and a mediator for Federal Court sponsored mediation. I am a member of the Executive Advisory Committee of the International Institute for Conflict Prevention and Resolution.


In addition to my work for the firm’s clients, I am Chair and CEO of TerraLex®, a worldwide network of more than 155 leading independent law firms in 100 countries and 44 U.S. states, of which Nixon Peabody has been a member for over two decades. This work brings me into daily contact with lawyers and issues around the world. The power and cost effectiveness of combining the local experience and connections of member firms into teams to serve the cross border legal needs of clients is impressive to see in action.

What do you see on the horizon?

With nearly every company and institution operating internationally, the need to prevent or efficiently resolve cross border disputes is growing. Clients and their lawyers need to continually reexamine how they approach their risk management, contracting and dispute resolution processes.


Harry P. Trueheart

Senior Counsel and Chairman Emeritus

New York

Phone: 212-940-3027


Phone: 585-263-1444

Fax: 866-947-0846

Harvard Law School, J.D.

Harvard University, B.A.

University of Michigan School of Business Executive Program

New York

Harry was selected, through a peer-review survey, for inclusion in The Best Lawyers in America© 2020 and 2021 in the field of Arbitration.

Harry was selected to the Upstate New York Super Lawyers list in 2008-2015. His primary areas of practice are business litigation law; international law; and alternative dispute resolution law.

Harry is a member of the New York State Bar Association (past chair of the Commercial and Federal Litigation Section; past member of the Association’s House of Delegates). He is a member of the International Bar Association and the Litigation, Antitrust and Business Law Sections of the American Bar Association. He is active in the CPR Institute for Dispute Resolution, a national alternative dispute resolution organization (panel member and Ethics Commission Working Group on ADR and Law Practice). He is a fellow of the Chartered Institute of Arbitrators and a fellow of the College of Law Practice Management. He is an arbitrator and mediator for the American Arbitration Association, and a fellow of the College of Commercial Arbitrators.

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