Firm Profile > Lax O'Sullivan Lisus Gottlieb LLP > Toronto, Canada

Lax O'Sullivan Lisus Gottlieb LLP

Restructuring and insolvency Tier 4

Toronto-based litigation firm Lax O'Sullivan Lisus Gottlieb LLP specializes in advising on contentious bankruptcy matters. The practice group secured central roles in several high-profile restructuring cases over the past year, including being appointed as counsel to the tobacco claims coordinator in the landmark Imperial Tobacco CCAA proceedings. Matthew Gottlieb is the name to note.

Key clients

Sears Canada

Nortel Networks Corp.

KingSett Capital Inc.

Canadian Overseas Petroleum Limited

Doreen Saskin

PWC Canada (PricewaterhouseCoopers LLP)

KingSett Mortgage Corporation

Douglas T. Cunningham, in his capacity as Litigation Trustee to Sears Canada

KSV Advisory Inc.

2668602 Ontario Inc. (Bowring Canada/Bombay & Co. Insolvency)

The Honourable Warren K. Winkler in his capacity as the Tobacco Claimants Coordinator in the Imperial Tobacco Limited CCAA proceeding

Dispute resolution

A force in Ontario and beyond, Toronto-based Lax O'Sullivan Lisus Gottlieb LLP has become a fixture in Canada’s most high-profile cases. The practice group excels across the full spread of civil, commercial and administrative litigation, as well as class actions and contentious restructurings. On the bench, the firm fields several heavyweight litigators, including Jonathan Lisus, who is widely lauded for his top-tier expertise in commercial and constitutional litigation. Matthew Gottlieb and Terrence O’Sullivan are also highly regarded for high-stakes business disputes. The department also benefits from an impressive band of up-and-coming partners, including Rahool Agarwal, who recently joined the firm from Norton Rose Fulbright, and Shaun Laubman. Crawford Smith also recently arrived from Torys LLP.

Key clients



Trump Organization

Mizrahi Developments Inc., et al.

2668602 Ontario Inc. (Bowring & Bombay Co insolvency)

Praxair Canada Inc.

Quadrangle Group

Qikiqtani Inuit Association

The Great-West Life Company

Canadian Hockey League


Air Georgian Limited

The Honourable Warren K. Winkler in his capacity as the Tobacco Claimants Coordinator in the Imperial Tobacco Limited CCAA proceeding

Lax O’Sullivan Lisus Gottlieb (LOLG) is Canada’s premier counsel firm. The firm’s 29 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 has extensive experience in the most important litigation involving private and public businesses, financial institutions and regulatory bodies. The firm acts as counsel in major business disputes, administrative proceedings, infrastructure disputes, insolvency mandates, class actions and securities cases, as well as professional liability, public law issues, franchise and health law litigation.

The firm routinely appears before all levels of court throughout Ontario and Canada, and in private arbitrations. LOLG has unique experience in the intersection between public law and civil law matters, including a depth of knowledge and experience in judicial review proceedings, with a particular expertise in complex cases with a regulatory dimension. The firm is regularly engaged as trial and appellate counsel by peer law firms, and as court officers in large and sensitive litigation mandates. The firm’s clients are based in Canada, the United States and internationally.

For further information visit

Department Name Email Telephone
Managing Partner Matthew Gottlieb (416) 644-5353
Photo Name Position Profile
 Rahool Agarwal photo Rahool Agarwal
 Matthew Gottlieb photo Matthew Gottlieb
 Shaun Laubman photo Shaun Laubman
 Jonathan Lisus photo Jonathan Lisus
Mr Terrance O’Sullivan  photo Mr Terrance O’Sullivan
 Crawford Smith photo Crawford Smith
International Academy of Trial Lawyers
IBA (International Bar Association)
ABA (American Bar Association)