Étienne Guertin

Olivier leads the Tax Controversy and Litigation practice of Deloitte Legal Canada LLP. Olivier practices tax law with a focus on tax litigation and tax controversy, from the audit and objection stages to tax appeals before the courts. He regularly assists clients in resolving tax disputes, both in and out of Court, and engages in managing complex tax audits, ensuring that the tax authorities operate within the lawful parameters regarding demands for information and documents and correcting n...

Richard Laramée is Chairman of the Board of DS Lawyers Canada, a member of the firm's Executive Committee, and Managing Partner of the Montréal office. A positive leader with an innovative and structured business vision, he is actively involved in the direction and implementation of the firm's development plan and growth strategy at the local, national and international levels. He is also involved in the governance of the DS Lawyers Group internationally, along with the firm's d...

Founding Partner of BCF LLP, Mario Charpentier co-heads our Corporate Finance sector. Mario was Managing Partner of BCF for 25 years, from the foundation of the firm in 1995 until November 2019. As a tax practitioner, he advises clients from every industry on the legal and business strategies to adopt to best grow their business. Mario draws upon a well of legal expertise and a vast network of personal and business relationships to address our clients’ challenges and provides tailored s...

Audrey Charest practices labour and construction law at our Montreal office. She cumulates several years' experience in the construction industry as a lawyer in labour relations, occupational health and safety and criminal law. Audrey works on a variety of business and management issues, including the application and interpretation of Bill R-20, collective agreements and workforce management. She also has experience as a corporate trainer on psychological and sexual harassment in the workplac...

Jacques Eddé is a member of the Real Estate practice group in the firm’s Montréal office. With extensive experience in all aspects of commercial leasing, Jacques represents international tenants and landlords in the drafting and negotiation of complex lease agreements and amendments relating to office, industrial and retail premises across Canada. Jacques also represents real estate developers in the sale and purchase of shopping malls, free-standing commercial or resident...

Eric Ouimet is head of BCF’s Litigation group and a founding partner of the firm. With over 30 years of experience, he is a senior partner in commercial litigation and dispute resolution. His ability to identify our clients’ technical and strategic issues makes him an invaluable counsel in matters pertaining to manufacters’ and designers’ liability, intellectual property infringements, as well as privacy and data protection. He is a seasoned practitioner in intellectua...

Louis Dessureault is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Louis, who practices law in Montréal, Quebec, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Louis is held by other top lawyers in the same geographic and legal practice area.

Jean‑Sébastien Dugas is a business lawyer. His practice covers all aspects of mergers, acquisitions and sales of private businesses, private financings (including equity, bank debt and subordinated loans), and commercial contracts. He advises entrepreneurs, executives, companies and private equity funds on complex strategic transactions across Canada, primarily in Québec and Ontario. Jean‑Sébastien provides guidance at all stages of commercial and corporate transactions, ...

Natalie Goulard is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Natalie, who practices law in Montréal, Quebec, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Natalie is held by other top lawyers in the same geographic and legal practice area.

A leader in banking law and finance, Martin Sills specialises in Canadian and cross-border financing transactions. He regularly represents chartered banks, asset-based lenders, and other Canadian and foreign financial institutions, as well as corporate borrowers dealing with complex financing transactions. From drafting legal documentation on asset-based lending to syndicated loans, automotive financing, leasing, real estate transactions, and inter-creditor relations, he perfectly masters the...