From commercial disputes and class actions to cross-border matters and professional regulation, we bring expert strategy.
"Aoife jumps head-first into a case and effectively delivers results for our clients. While she may act quickly, she always thinks first, critically analyzing a situation from every angle and offering innovative solutions. She is a top-notch and skilled lawyer."
"There isn't a litigation matter that Lenczner Slaght cannot handle. You go to this firm to get the best counsel you can."
Canada’s leading litigation firm is proud to announce that two of our expert litigators, Jim Lepore and Sean Lewis, have been promoted to the partnership.
For the 24th consecutive year, Canada’s leading litigation firm and its expert litigators have been recognized in world-renowned directory, Chambers Global.
We’ve released our 2025 Snapshot, highlighting the most significant developments, decisions, and trends in litigation from the past year across 21 practice areas. Reflect on 2025 and look ahead to 2026 through the lens of our expert litigators.
We are proud to announce that Sana Halwani will be the inaugural recipient of the 2026 Luminary Award for the OBA Information Technology & Intellectual Property Law Section. The award will be presented at the OBA IT/IP Fireside Chat Program on April 28, 2026.

