Lax O'Sullivan Lisus Gottlieb LLP

Litigation: General Commercial

6 ranked lawyersBand 2OntarioCanada 2021 View ranking table
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Ranked Lawyers
chambers review
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Ranked Lawyers

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What the team is known for

Large Toronto litigation boutique that is sought out for its handling of high-end corporate and commercial litigation. Areas of expertise include contractual and shareholder disputes, professional liability and insolvency, as well as matters involving franchising and construction law. The team is highly experienced at both trial and appellate level, and regularly handles class action work, acting for both plaintiffs and defendants. Acts for an impressive range of clients, including domestic and international companies and financial institutions, as well as corporate directors and officers, and is often sought out as counsel by other law firms.


Clients characterise the firm as "organised, creative, efficient, fearless, practical, lethal and polished."

One source highlighted the team's "tremendous professionalism in a very difficult situation that required so much in the way of skilled analysis," additionally citing its "outstanding guidance."

Work highlights

Acting for the court-appointed mediator in the Imperial Tobacco, JTI-MacDonald and Benson & Hedges CCAA proceedings, involving the negotiation of a global settlement for the three proceedings.

Notable practitioners

Crawford Smith is a highly regarded lawyer with a diverse commercial litigation practice. He earns plaudits for his counsel on single-plaintiff and class action disputes, with notable experience in the energy sector.

Jonathan Lisus is endorsed by sources as a "top-notch lawyer" who "maintains an exceptionally robust practice yet always returns calls promptly, is polished in front of the business and practical." He is additionally noted as a "master at creating compelling case theories." He is an eminent commercial litigator who features on some of the country's largest mandates, touching on such issues as negligent misrepresentation, breach of contract and unfair conduct, as well as shareholder disputes.

Managing partner Matthew Gottlieb is a prominent figure in Toronto's commercial litigation market. He is particularly respected for his insolvency disputes practice. Interviewees commend him as a"really bright, sensible lawyer" who "offers really insightful strategies" and "clearly explains the pros and cons of each situation."

Nadia Campion is recognised as a "great up-and-coming litigator" by commentators. She has wide-ranging commercial experience, including advising on insolvency-related cases and class actions, as well as novel issues around the destruction of human biological reproductive materials.

Paul Michell is a seasoned practitioner with a well-established reputation in the commercial litigation field. He is additionally instructed on arbitration matters.

Terrence O'Sullivan is a stalwart of the Ontario commercial litigation market. His wealth of knowledge and experience remains an invaluable resource for the firm.

Department Information

This content is provided by Lax O'Sullivan Lisus Gottlieb LLP.


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 insolvency cases, 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.

Litigation: General Commercial Department

Lax O'Sullivan Lisus Gottlieb LLP

Department location

145 King Street West

Suite 2750




M5H 1J8

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Ranked Lawyers

Chambers Research is conducted by 200 Research Analysts, across 200 jurisdictions and provides nearly 6,000 rankings tables. Annually we collect hundreds of thousands of responses from clients, the majority via in-depth interview. Learn more about our methodology.


Litigation: General Commercial

Crawford G Smith
Band 3
Jonathan C Lisus
Band 1
Matthew P Gottlieb
Band 2
Nadia Campion
Up and Coming
Paul Michell
Band 5
Terrence O'Sullivan
Senior Statespeople