Kellner Avocats is a law firm based in Sainte-Thérèse, Quebec, with an additional office in Montréal, serving clients on the North Shore of Montréal. The firm practises family law, business and commercial law, civil litigation, real estate and construction law, and tax law, and has grown from a solo practice founded in 2003 to a team of more than a dozen lawyers.

Practice areas

Family Law Business & Corporate Law Civil Litigation & Dispute Resolution Real Estate Law Construction Law Wills, Estates & Trusts Tax Law Bankruptcy & Insolvency

Good to know

A person using a wheelchairAccessible parkingA calendar with a checkmark beside a clockBy appointment

Lawyers 12

Amélie Bourgault-Albert Avocate, Droit de la famille Arnaud Drouin Avocat, Droit civil Benoit Guindon Avocat, Droit de la construction et litiges immobiliers Catherine Deschênes-Ouimet Avocate et médiatrice accréditée, Droit de la famille Gabrielle Pagliuca Avocate, Droit civil et droit de la famille Isabelle Pepin Avocate, Droit civil Jessica Sirois Avocate, Droit civil et administratif Karine Martineau Avocate, Droit civil, successions et droit des personnes Mathieu Kellner Avocat, Droit des affaires Maxime Morissette Avocat, Droit des affaires Michel Corbeil Avocat, Droit des affaires Mike-Randy Fontus Avocat, Droit des affaires

This firm’s lawyers at a glance

Languages on the roster
French

Where to find them

15 Rue St-Charles, Sainte-Thérèse, QC J7E 2A3 · 450-506-0285

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This listing was generated by AI from public sources in August 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on the firm’s own website. Verify licence status in the Barreau du Québec directory ↗

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