Lex Group is a boutique litigation firm in Westmount, Montreal, founded in 2011 by David Assor. The firm handles commercial and civil litigation, class actions, business law and intellectual property, and it's known for leading large-scale class actions against major corporations, automakers, banks and government bodies. Its attorney regularly appears before the Courts of Quebec and the Federal Court of Canada.

Where to find them

4101 Sherbrooke St. West, Westmount, QC H3Z 1A7 · 514-451-5500

Similar firms in Montréal

Langlois Avocats

30 lawyers

Langlois is one of Quebec's largest independent law firms, with more than 325 people including over 175 legal professionals across offices in Montréal and Québec City. Practising for more than a century, the firm advi…

Business & Corporate LawBusiness & Corporate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionEmployment & Labour LawEmployment & Labour LawReal Estate LawReal Estate Law

Miller Thomson LLP

28 lawyers

Miller Thomson LLP is a national, full-service business law firm with offices across Canada. Its lawyers work in corporate and commercial law, litigation, real estate, construction, insurance, tax, labour and employme…

Business & Corporate LawBusiness & Corporate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionConstruction LawConstruction LawInsurance LawInsurance Law

Torys LLP

302 lawyers

Torys LLP is a full-service business law firm with offices in Toronto, Calgary, Montreal, New York, Vancouver, and Halifax. It advises Canadian and international clients on corporate and commercial matters, litigation…

Business & Corporate LawBusiness & Corporate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionTax LawTax LawReal Estate LawReal Estate Law

Listing compiled from the firm’s public website in July 2026. Verify licence status in the Barreau du Québec directory ↗