Wide range of practice areas.

Our diverse practice areas will provide you with the advice and expertise that any situation may present.

Corporate and Business Law

Civil, Commercial and Corporate Litigation

Mining Law

Construction Law

Constitutional and Fundamental Rights

Tax Law

Labour and Employment Law

Family Law


Welcome to our FIRM


Founded in 1991, the law firm of Gattuso Bouchard Mazzone stands out today for its wide range of targeted and diversified legal services. Since then, our team of lawyers has become a key player in the Montreal landscape, able to help its clients, both businesses and individuals.

Whatever the mandate, our overall objective remains the same: to accompany our clients in a personalized and efficient manner. Our ability to listen, our solid expertise and our constant availability are the hallmarks of our firm today.




Why our clients choose us


“A masterful work that is more than necessary to shake up our inertia. Because if we are not careful, we could be the next to live a waking nightmare.

France-Isabelle Langlois, Executive Director, Amnistie Internationale Canada francophone

In 2002, Canadian Omar Khadr was captured dying following an American attack on Afghan soil and thrown into the hell of Guantanamo Bay, where he languished for ten years. 

Radicalized by his father, a close associate of Bin Laden, the child soldier finds himself at the epicenter of a conflict where the very foundations of justice are pulverized.

Arbitrarily imprisoned, deprived of all rights, he is not only left to his jailers, but taken hostage by politicians.

In this eye-opening book, Frédéric Bérard exposes the little-known background of one of the worst Western judicial tragedies in recent history. recent history.

An article on this subject appeared on March 1, 2023  in the  Journal Le Devoir.
Frédéric Bérard is a partner at GBM, a decorated university professor, seasoned columnist and analyst, and
a respected author. With a master’s degree in political science and a doctorate in constitutional law, he also completed postdoctoral studies in philosophy. Mr. Bérard has given a hundred conferences.  Among them, a Ted Talk on the Khadr case.