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David Lederman


dlederman@goodmans.ca vCard
Bay Adelaide Centre - West Tower
333 Bay Street, Suite 3400
Toronto, ON M5H 2S7

Tel:   416.597.5146
Fax:   416.979.1234

David Lederman is a partner in the Litigation Group at Goodmans. His practice focuses on litigation and arbitration disputes, including intellectual property and commercial law matters. David has substantial trial experience in shareholder battles, fiduciary liability, technology disputes, defamation, white collar crime, and cannabis litigation.  

David appears before the trial and appellate levels of the Ontario Superior Court of Justice and the Federal Court of Canada. He has also appeared before a number of administrative tribunals, including tribunals such as the Ontario Energy Board and the Licence Appeal Tribunal.

David is experienced in domestic and international arbitrations and has acted as lead counsel in proceedings brought before the ICC International Court of Arbitration. He also has served as an arbitrator for proceedings brought before the International Centre of Dispute Resolution.


David is a member of the ICC Canada Committee. He has spoken ICDR and OBA events on arbitration issues.

David assisted the Honourable Bob Rae in his review of the bombing of Air India Flight 182 and in preparing his report entitled Lessons to be Learned which led to a Commission of Inquiry into the investigation of that event.

David regularly explores new developments in the law. David has spoken on the litigation risks associated with “crowdfunding” and the emerging growth of third party litigation funding in Canada.


David was recognized as one of Lexpert’s Rising Stars: Leading Lawyers Under 40 in 2012 and in Lexpert’s 2013 Guide to the Leading US/Canada Cross-Border Litigation Lawyers in Canada as a Litigation Lawyer to Watch.  He was also included as one of the Best Lawyers in Canada in the areas of commercial litigation and intellectual property law in 2019.


Education University of Western Ontario (LL.B., 1999)
McGill University (B.A., 1996)
Professional Affiliations

Law Society of Ontario
Ontario Bar Association
The Advocates’ Society
International Centre for Dispute Resolution Canada
ICC Canada