Lars Brusven


Lars* knows that achieving a successful outcome for his clients requires a firm grasp of the complex details while maintaining a steady focus on the greater strategic goals. He puts these skills to work daily in his litigation practice. Lars knows§ his way around the court room, as he has represented clients before all levels of court in Ontario, the Federal Court of Canada, and various administrative tribunals. Before joining Lenczner Slaght, Lars was Crown counsel at the Department of justice , having represented the federal government in constitutional and commercial litigation and judicial review proceedings. In his spare time, Lars can be found cycling around the City—rain, snow, or shine—in search of the perfect pickled herring and aquavit pairing. .



Lars Brusven

is a lawyer at Lenczner Slaght.

Lars' varied litigation practice includes commercial disputes, professional liability matters, public law litigation, and class actions.  He has represented clients at all levels of court in Ontario, the Federal Court of Canada, and numerous administrative tribunals.

Before joining Lenczner Slaght, Lars was a litigator at the Department of Justice, where he represented the Attorney General of Canada and federal government departments in constitutional litigation, contract and tort matters, class actions, and judicial review proceedings. Lars has helped clients navigate high-profile complex litigation and has advised clients through sensitive matters requiring discreet legal assistance.

Lars earned a joint JD/MA (International Affairs) from the University of Ottawa and Carleton University, where he served as Editor-in-Chief of the Ottawa Law Review and Assistant Editor of the Paterson Review of International Affairs. During law school, Lars completed studies at Tel Aviv University and earned various advocacy awards as a member of championship moot court, negotiation, and mediation competition teams.  

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  • Canadian Bar Association

  • The Advocates' Society

  • Bazos v Bell Media Inc

    The recent Toronto municipal election produced no shortage of last-minute court challenges and legal drama. One such dispute came between Bell Media and Faith Bazos (aka Faith Goldy)—the controversial mayoral candidate known for her far-right political views. The Court’s decision in Bazos v Bell Media Inc, released just six days before the election, addresses fundamental questions of jurisdiction between courts and administrative tribunals, as well as the circumstances in which the Court will exercise its discretion to grant injunctive relief in a matter which otherwise falls under a tribunal’s jurisdiction.

    Lars Brusven | November 28, 2018

  • Enforcing Foreign Civil Judgments in Favour of Victims of Terrorism: New Ground at the Court of Appeal

    The Ontario Court of Appeal has confirmed a robust and plaintiff-friendly framework for the recognition and enforcement of foreign judgments against state supporters of terrorism under the Justice for Victims of Terrorism Act, SC 2012 c 1 (the “JVTA”).

    Lars Brusven | December 5, 2017

  • Door left open for negligence claims by investors against corporate directors

    Does the director of a corporation owe a common law duty of care to that corporation’s security holders? The prevailing view has been that directors do not owe a duty of care to a corporation’s investors. However, the Ontario Superior Court in Poole v Phillips determined that the answer to this question is not clear enough to permit summary dismissals of such negligence claims. In Poole, the Court refused the Defendants’ motion for summary judgement, holding that a negligence claim brought by investors against a corporation’s directors disclosed a genuine issue requiring trial.

    Lars Brusven | March 8, 2017

  • Apology Excepted: Does Ontario's Apology Act protect apologies offered abroad?

    In Ontario, if a product harms consumers, a manufacturer may apologize without risk of the apology being used as an admission of liability in subsequent civil proceedings. Indeed, Ontario’s Apology Act expressly protects defendants from their apology being used in a determination of fault or liability.

    Lars Brusven | August 11, 2016

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