Lexpert Ranked Law Firm

Lax O’Sullivan Lisus Gottlieb LLP is a premier independent litigation practice. We conduct high profile, complex litigation creatively and efficiently. The firm’s counsel practice is headed by some of Canada’s leading commercial litigators. The partners have extensive litigation experience. Each has earned a reputation for excellence in advocacy and for innovative strategies, not only in successfully litigating and resolving disputes, but in avoiding them as well.

Our partners are among the most consistently recommended counsel in Canada, according to various surveys of the profession. Seven of the partners have been acknowledged as leading practitioners in The Canadian Legal Lexpert® Directory, and three have been elected fellows of the American College of Trial Lawyers.

The firm provides litigation and counsel services involving a wide range of disputes before all levels of court in Ontario and Canada, administrative tribunals, and arbitration panels. The core of the firm’s practice is significant civil and commercial litigation involving private and public businesses, financial institutions, and regulatory bodies. The firm also acts regularly as counsel in administrative proceedings, class actions, employment disputes, insolvency litigation, public law and constitutional issues, franchise issues, libel and slander actions, and health law litigation. The firm’s clients are based in Canada, the United States, and elsewhere.

Partner profiles are as follows:

C. Clifford Lax, QC, LSM, was called to the Ontario Bar in 1970, appointed Queen’s Counsel in 1982 and awarded the Law Society Medal in 2008. Fellow, American College of Trial Lawyers. Fellow, International Academy of Trial Lawyers. Past President of The Advocates’ Society. Arbitrator, International Centre for Dispute Resolution (AAA). Arbitrator, the Chartered Institute of Arbitrators. Member, Toronto Commercial Arbitration Society. Member, American Dispute Resolution Center. Past National Chairman, Environmental Law, CBA. Past Provincial Chairman of American College of Trial Lawyers. Wide range of experience in major litigation and arbitration work, spanning all fields with emphasis on complex corporate commercial and securities disputes, real estate transactions, environmental liability and defamation. Languages: English and French.

Terrence J. O’Sullivan, LSM, was called to the Bar of Ontario in 1973. He has a wide-range of experience in major civil and commercial litigation with particular emphasis on complex corporate, commercial, securities and financial institution litigation. He regularly appears in all levels of courts in Ontario and other provinces, and the Supreme Court of Canada. He also acts as a mediator and arbitrator. He is a Fellow of the American College of Trial Lawyers, a Fellow of the International Academy of Trial Lawyers and is a Past President of The Advocates’ Society. He is a member of the Chartered Institute of Arbitrators. Mr. O’Sullivan was awarded the Law Society Medal for his contributions to the profession in 2010. He is recommended by all leading professional recognition publications as one of the leading civil litigation counsel in Canada and is ranked in Band 1 by Chambers Global.

Jonathan Lisus was called to the Ontario Bar in 1992. His practice focuses on complex commercial and constitutional litigation with particular experience in infrastructure related litigation, complex contractual disputes, product liability claims, oppression remedies, franchise litigation, class actions and securities litigation. He has a trial and appellate practice in the Superior Court of Justice, the Ontario Court of Appeal and the Supreme Court of Canada. Member of the Chief Justice of Ontario’s Advisory Committee on Professionalism, former Director of The Advocates’ Society, regularly appears as Special Counsel for the Canadian Civil Liberties Association. Recognized by The Lexpert®/American Lawyer Guide to the leading 500 Lawyers in Canada, Lexpert® — Most Frequently Recommended, Martindale-Hubbell preeminent rating (5), Chambers Global, and The Best Lawyers in Canada. Fellow of the American College of Trial Lawyers and Fellow of the International Academy of Trial Lawyers.

Matthew P. Gottlieb practises business litigation, including corporate and commercial disputes, insolvency and restructuring mandates, libel law, securities litigation and administrative law. He has appeared before the Supreme Court of Canada, the Ontario Court of Appeal, the Ontario courts (Superior Court, Commercial Court and Divisional Court), the Federal Court of Canada, the New Brunswick Court of Appeal, the Supreme Court of British Columbia, The Law Society of Ontario, the Ontario Securities Commission, and the Toronto Stock Exchange. Has acted as counsel in many major court proceedings, including those regarding Nortel, Hollinger Inc., BlackRock, Air Canada, First Leaside, Cineplex Odeon and has significant experience in trials and court applications involving insolvency, securities, contractual, Internet and technology, and shareholder issues. Recognized as a leading litigation lawyer in Chambers Global: The World’s Leading Lawyers for Business, Benchmark Canada, The Best Lawyers in Canada and The Canadian Legal Lexpert® Directory. Frequent instructor at many litigation related seminars held by The Law Society Ontario, The Advocates’ Society and other organizations. Called to Ontario Bar in 1991.

M. Paul Michell, called to the Ontario Bar in 1997. Practice focuses on commercial arbitration and litigation, cross-border litigation, oppression and shareholders’ actions, defamation, employment, appeals and judicial review. Has appeared in the Ontario and Federal courts, the Supreme Court of Canada, and a variety of administrative and arbitration tribunals. Law clerk to Mr. Justice Charles Gonthier of the Supreme Court of Canada. Adjunct Professor, Faculty of Law, University of Toronto, teaching international commercial arbitration and public international law. Fellow of the Chartered Institute of Arbitrators. Author of more than 25 articles in legal journals, including articles cited by the Supreme Court of Canada and the High Court of Australia. Ranked by Benchmark Canada, Chambers Canada, and Who’s Who Legal: Canada for arbitration and commercial litigation and “Consistently Recommended” for Litigation – Corporate Commercial by Lexpert®. Listed as “up and coming” Ontario dispute resolution lawyer in Chambers Global in 2009 and 2010. Named a “Top 40 Lawyer Under 40” by Lexpert® in 2006.

Shaun Laubman was called to the Ontario Bar in 2005 and the New York State and Federal Bars in 2006. He has a broad-based commercial litigation practice and has acted for clients in trials, appeals, applications and administrative proceedings. His litigation practice includes shareholder and partner disputes, securities litigation, insolvency proceedings, franchise law, directors’ and officers’ liability, and employment matters. Shaun clerked for the judges of the Ontario Court of Appeal following graduation from the University of Toronto Faculty of Law, where he was the valedictorian of his graduating class.

Paul Fruitman’s practice combines courtroom expertise and a focus on the unique features of each case. He has appeared as counsel in all levels of court in Ontario, including as trial counsel in jury and non-jury matters, and at the Federal Court and the Federal Court of Appeal and in a range of administrative and arbitral tribunals. He has extensive experience in injunctive proceedings involving restrictive covenants and use of confidential information. He regularly acts as counsel to corporate directors and officers and in shareholder disputes, oppression claims and professional negligence matters. He is a Member of the Ontario Bar Association’s Alternative Business Structures Task Force and the Canadian Bar Association’s working group for Solicitor-Client Privilege Claims at the Canadian border, and a past member of the OBA’s Civil Litigation Executive. Lectures regularly on litigation topics, including at The Advocates’ Society and the OBA. Called to the Ontario Bar in 2006.

Andrew Winton has been involved in a wide range of commercial disputes, with a focus on employment, restructuring, and shareholder disputes. His clients include individuals, small- and medium-sized businesses, and major corporations. He acts for both employers and employees in executive terminations, with a focus on the financial industry, and has significant experience in departing employee cases involving unfair competition and misuse of confidential information disputes. He is the co-author of the “Injunctions against Ex-Employees” module on Lexis Practice Advisor Canada. Andrew regularly acts for parties to insolvency and restructuring matters, including as counsel to the court-appointed Monitor or Receiver, as counsel for the directors and officers of insolvent corporations, and as counsel for other interested parties. Andrew served on the Section Executive of the Ontario Bar Association’s Civil Litigation Section between 2013 and 2016 and on the Section Executive of the Ontario Bar Association’s Insolvency Section from 2016 to 2017. Called to the Ontario Bar in 2007.

Crawford Smith’s litigation practice focuses on corporate and commercial matters, energy regulatory proceedings and securities and competition litigation, as well as public and administrative law and class action expertise. He has appeared as counsel in all levels of court in Ontario, in the Supreme Court of Canada, in the Federal Court, in commercial arbitrations, and before a variety of administrative tribunals including the Ontario Energy Board, the Ontario Securities Commission, the Competition Tribunal and the Environmental Review Tribunal. Crawford’s energy practice involves economic issues in multi-party litigation and frequent appearances as counsel before the Energy Board at hearings regarding rate regulation, infrastructure development and demand-side management. His securities broker/dealer practice includes acting as counsel for investment dealers, mutual fund dealers, registered representatives and other securities industry participants. Crawford also handles regulatory proceedings and investigations by the Investment Industry Regulatory Organization of Canada and the Ontario Securities Commission.

Nadia Campion focuses on complex commercial litigation including shareholder oppression applications, director and officer liability, estates matters, class actions and professional liability. She has extensive trial experience and appears regularly before the Superior Court of Justice, the Ontario Court of Appeal and various regulatory and administration tribunals. Nadia has particular expertise in Toronto Commercial List proceedings and has an active land development and real estate litigation practice. With both US and Canadian law degrees, Nadia is capable of dealing with any case that comes across her desk. Nadia has been recognized by Best Lawyers for securities law, was named to Benchmark’s 40 and Under Hot List in 2018 and is a 2018 “Lexpert Rising Star”. She presents regularly, in both French and English, at the Law Society of Ontario, the Ontario Bar Association, The Advocates’ Society, the Canadian Defence Lawyers Association, the Canadian Bar Association, the Business Women’s Network of York Region, the International Association of Defense Counsel and l’Association des juristes d’expression francais. She regularly publishes articles and has been quoted in dozens of legal publications. Nadia is fluent and practises in French with clients in Québec City and Montréal.

Rahool Agarwal’s practice focuses on complex commercial and civil litigation, including contractual disputes, shareholder disputes, proxy fights, director and officer liability, complex fraud cases and class actions.  He has acted for a diverse range of clients, including international pharmaceutical innovators, private investment banks, a Canadian tobacco manufacturer and a European telecom. He also has extensive experience in constitutional law and public law, acting in cases involving the constitutionality of a safe injection site, discrimination against learning disabled students in the public school system and the application of state immunity in response to allegations of torture. Rahool has appeared before all levels of court in Ontario, the Quebec Court of Appeal, the BC Court of Appeal and in five cases in the Supreme Court of Canada.  He has been recognized as a “Next Generation Lawyer” by Legal 500, a “Rising Star: Leading Lawyer Under 40” and a “Leading Lawyer to Watch” by Lexpert® and a “Precedent Setter” by Precedent Magazine.


145 King St W, Suite 2750
Toronto, ON, Canada, M5H 1J8
Phone: (416) 598-1744
Fax: (416) 598-3730

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Lax O'Sullivan Lisus Gottlieb LLP is a Lexpert-Ranked Firm in the following practice areas
Class Actions Toronto, Ontario Consistently Recommended
Litigation - Corporate Commercial Toronto, Ontario Most Frequently Recommended
Litigation - Securities Toronto, Ontario Consistently Recommended
Professional Liability Toronto, Ontario Consistently Recommended
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