Lax O’Sullivan Lisus Gottlieb


145 King St W, Suite 2750
Toronto, ON, M5H 1J8

Telephone:+1 416 598 1744
Fax:+1 416 598 3730

Contact us

Lax O’Sullivan Lisus Gottlieb (LOLG) is Canada’s premier counsel firm. The firm’s lawyers handle the most complex commercial disputes and public law cases. They carry a robust trial, arbitration, and appellate practice across the country and in the Supreme Court of Canada.

LOLG is regularly engaged as trial and appellate co-counsel by peer law firms, and as court officers in large and sensitive litigation mandates. The firm also acts as counsel in class actions, securities litigation and administrative law matters, as well as infrastructure, franchise, employment and health law disputes.

LOLG also has one of Canada’s leading restructuring & insolvency practices. The firm’s insolvency counsel are ranked among the top nationally and have material roles in Canada’s largest and most complex insolvency proceedings and restructurings.

LOLG’s practitioners are leaders at the bar, holding positions on the Chief Justice of Ontario’s Advisory Committee on Professionalism and the Supreme Court Advocacy Institute, and fellowships in elite trial organizations. Its associates are of the highest caliber, recruited primarily from judicial clerkships at the Supreme Court of Canada, provincial Courts of Appeal, and the Commercial List of the Superior Court of Justice. LOLG’s partners are among the most consistently recommended counsel in Canada and represent clients in Canada, the United States, and from overseas.

  • Administrative and constitutional Law 
  • Appeals
  • Arbitration and Mediation 
  • Automotive franchise and dealership disputes
  • Class Actions
  • Commercial Litigation
  • Construction and infrastructure litigation
  • Corporate governance dispute
  • Cross-border disputes
  • Defamation and media law
  • E-Discovery 
  • Employment litigation 
  • Estates litigation
  • Franchise litigation
  • Health law litigation
  • Injunctions
  • Insolvency and restructuring
  • Intellectual property disputes
  • Investigations and Intentional torts
  • Product liability
  • Professional negligence and regulation
  • Real estate litigation
  • Securities litigation


Updated March 2022