Caroline Biron, Ad. E. Partner | Montréal

About Caroline

Caroline is a leading litigator with over 30 years of practice in commercial law, corporate law, employment law, civil litigation (including defamation issues), privacy and professional liability law.

Caroline frequently handles governance cases, including human resources issues and those involving internal investigations. She also has litigation expertise regarding fraud and cybersecurity issues, shareholder disputes and estate law. She has significant experience defending class actions in the fields of contractual and extra-contractual liability, product liability, competition law, consumer law, privacy and personal data protection law and regularly intervenes in seizures and injunctions. She has appeared before all levels of court in Canada, including the Supreme Court of Canada and the Federal Court, as well as before several administrative tribunals and arbitration boards.

Furthermore, Caroline advises companies and their boards of directors on risk management, ethics and corporate governance. She provides strategic advice in critical situations such as whistleblowing, security breaches, Privacy Commissioner investigations, Public Sector Integrity Commissioner investigations and class actions. In addition to her work as a lawyer, she works closely with her clients’ communications teams and public relations agencies.

Before joining Blakes, Caroline was the managing partner of a boutique litigation law firm.

Caroline is fluent in English and French.

Select Experience

Represented the executive director of a prominent museum in a reputational claim in the wake of a highly publicized dismissal.
Defended an accounting firm against a claim of C$55-million by a trust for losses allegedly incurred as a result of the faults of the accounting firm.
Represented a renowned French publisher in a series of proceedings brought in the wake of an asset purchase transaction it had concluded with a competitor, pursuant to which the competitor filed for bankruptcy.
Represented a forensic accounting firm in two motions for a stay, filed by a pharmacy retailer and its pharmacists, of an administrative investigation by the Province of Quebec against them on the grounds that the firm had violated their professional secrecy over the course of said investigation.
Represented a global office property company in the context of an application for an injunction by a group of minority shareholders who were seeking to postpone the company’s annual general meeting.
Defended an auditor against a claim by the buyer of a company who was claiming that it relied on faulty financial statements that he had audited to make the decision to purchase the company.
Defended a trustee in bankruptcy against a claim of over C$4-million by the purchasers of a bankrupt cheese factory on the basis that they relied on false representations made to them by the trustee and other defendants to make the decision to purchase the cheese factory and that, in that context, the defendants also committed several faults which had caused them damages.

Awards & Recognition

Caroline is a fellow of the Litigation Counsel of America, an invitation-only trial lawyer honorary society whose membership is limited to 3,500 fellows, representing less than 0.5% of American and Canadian lawyers.

Caroline has been recognized as a leading lawyer in several publications, including:

Best Lawyers: "Lawyer of the Year" 2025 (Director and Officer Liability Practice, Montréal)
The Best Lawyers in Canada 2025 (Director and Officer Liability Practice, Alternative Dispute Resolution, Appellate Practice, Class Action Litigation, Corporate and Commercial Litigation, Corporate Governance Practice, Defamation and Media Law, Product Liability Law)
Chambers Canada Legal Guide – 2024–2025 (Litigation: General Commercial – Quebec)
Benchmark Canada: The Definitive Guide to Canada's Leading Litigation Firms and Attorneys – 2021–2024 (Litigation Star)
The Canadian Legal Lexpert Directory (2015–2025: Commercial Arbitration, Litigation – Directors’ & Officers' Liability, Litigation – Corporate Commercial; 2025: Class Actions; 2015-2024: Professional Liability)
Lexpert Special Edition: Litigation – 2019–2024
The Best Lawyers in Canada – 2019–2023 (Corporate and Commercial Litigation, Class Actions, Product Liability Law and Director and Officer Liability Practice)
Benchmark Litigation – 2017–2023 (Litigation Star)
Benchmark Litigation 2022 (Top 100 Women in Litigation in Canada)
Benchmark Litigation – 2020–2021 (Top 50 Women in Litigation)
Benchmark Litigation 2019 (Top 25 Women in Litigation)

Professional Activities

Caroline chairs the board of directors of the Théâtre du Nouveau Monde and is board member of the CHU Sainte-Justine Foundation and The Advocates’ Society. She also serves on the Executive Committee of the Quebec Chapter of the Institute of Corporate Directors (ICD).

Caroline has taught evidence at the Quebec Bar School for several years and has acted as a mentor in the pilot project of the Canadian Institute for the Administration of Justice. She is a current member of the following associations: