Dan Leduc

Dan Leduc practices 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

• 2026 Lexpert Ranked Lawyer
• 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

• 2026 Chairman of the Ottawa Construction Association
• Kingston Construction Association
• Mechanical Contractors Association of Canada
• National Capital Heavy Construction Association

Conferences, Publications, Presentations & Seminars

• “2026 Construction Act Shift: Owners and Contractors on a Tighter Clock” By Dan Leduc, published by bonding agency company Petrela Winter, circulated to their clients provincewide.
• “Design by RFI: The Hidden Costs and Legal Risks of Delegated Design,” Session at the Mechanical Contractors Association of Manitoba and the Electrical Contractors Association of Manitoba TradeConnect 2026 Conference in Winnipeg, Manitoba, March 24^th, 2026.
• “Design by RFI: The Hidden Costs and Legal Risks of Delegated Design,” Session at the Mechanical Contractors Association of Canada 2026 Emerging Leaders Conference in Toronto, Ontario, March 27^th, 2026.
• “Design by RFI: The Hidden Costs and Legal Risks of Delegated Design,” Session at the Greater Toronto Electrical Contractors Association in Markham, Ontario, March 31^st, 2026.
• “Contract Issues and Pitfalls, and Delegated Design by RFI”, 2 learning sessions at R.W. Tomlinson Limited, in Ottawa, Ontario, April 7^th, 2026.
• Guest Speaker at the Canadian Automatic Sprinkler Association Ontario Caucus, in Ottawa, Ontario, April 9^th, 2026.
• CCDC Contracts & Risk Management for Consultants Learning Session with Paterson Group in Ottawa, Ontario, April 20^th, 2026.
• Guest Speaker at the Electrical Contractors Association of Ontario and UNCE Mexico 2026 Annual Industry Conference at Nobu Hotel Los Cabos, Mexico, May 6^th, 2026.
• Guest Speaker at the Electrical Contractors Association of British Columbia 2026 Annual Conference in Kelowna, British Columbia, June 1^st, 2026.