Dan Leduc

Dan Leduc practices almost exclusively in the field of construction law and dispute resolution. He is frequently called upon to advise and represent owners, subcontractors, suppliers, and builders in such front-end services as contract reviews, tender issues, and general construction matters, as well as in litigation and arbitration.

Mr. Leduc is experienced in negotiating, mediating, arbitrating, and litigating all manner of construction disputes including construction liens, trust claims, delay claims, construction insurance claims, and architect’s and engineer’s errors and omissions. He has experience in drafting and negotiating various forms of construction contracts on behalf of owners, developers, general contractors, subcontractors, and suppliers. Mr. Leduc also has experience in surety bond claims, including performance bond claims and labour and material payment bond claims, as well as managing cases involving large volumes of documents, at times, in excess of 2,000,000 documents.

Rankings and Recognitions

• 2025 Lexpert Ranked Lawyer
• Best Lawyers in Canada: Construction law “Lawyer of the Year,” 2022
• Best Lawyers in Canada: Construction law, 2018-2023
• Canadian Legal Lexpert Directory, 2012-2022: recommended in Construction Law
• Chambers Canada, Nationwide: Construction, Chambers and Partners, 2020
• Chambers Global: The World’s Leading Lawyers for Business (2016): Construction
• Chambers Global: Canada (2015): Construction

LL.B., University of New Brunswick, 1991
B.A. Hons., Queen’s University, 1988

Ottawa Office

English, French

• Ottawa Construction Association (2025 Vice Chair)
• Kingston Construction Association
• Mechanical Contractors Association of Canada
• National Capital Heavy Construction Association

Conferences, Publications, Presentations & Seminars

• “Signed, Sealed, and Worried?: Navigating Contract Risks in Construction from a Subcontractor Perspective,” Session at the Mechanical Contractors Association of Canada Emerging Leaders Conference in Toronto, Ontario, March 27, 2025
• “Delay Claims from a Subcontractor Perspective – What to Do Before You Go Legal,” Session at TradeConnect 2025 for the Mechanical Contractors Association of Manitoba in Winnipeg, Manitoba, March 18, 2025
• “Change Orders & Negotiation Strategies – Cash Flow, Contracts, & Claims,” Session at TradeConnect 2025 for the Mechanical Contractors Association of Manitoba in Winnipeg, Manitoba, March 18, 2025
• “Delay Claims,” Seminar for the Greater Toronto Electrical Contractors Association in Toronto, Ontario, March 6, 2025
• “Tariffs, Trade Wars, and Construction Chaos: Trying to Get a Grasp,” Virtual Seminar for the Electrical Contractors Association of Ontario, February 14, 2025
• “Conflict Avoidance Strategies in Construction,” Moderator of Plenary Session for the Ontario Road Builders’ Association in Toronto, Ontario, January 30, 2025
• “Delay Claims,” Virtual Seminar for the Mechanical Contractors Association of Ontario, December 5, 2024
• “Common Contract Pitfalls and How to Avoid Them,” Seminar for the Mechanical Contractors Association of Canada Conference in Austin, Texas, November 29, 2024
• “Delay Claims,” Presentation for the Ottawa Construction Association in Ottawa, Ontario, November 19, 2024
• “Contract Pitfalls,” Virtual Seminar for the Mechanical Contractors Association of Ontario, September 24, 2024