Sébastien Cusson
About Sébastien Cusson
Sébastien Cusson is a lawyer based in Montréal, QC and has been recognized in Best Lawyers: Ones to Watch in Canada™ since 2025. Sébastien Cusson is recognized in the following practice areas:
- Montréal, Quebec
- Construction Law
- Corporate and Commercial Litigation
Current Firm: McCarthy Tétrault LLP
Education: University of Ottawa, J.D., graduated 2015
Location: Montréal, QC
It takes just a few minutes to optimize your profile for clients looking to engage and lawyers who are ready to refer.
Activate your profile and highlight why your peers recognized in Best Lawyers today.
Nearby Lawyers
Vincent Routhier’s practice focuses on international trade and customs law; particularly in trade remedies (ADD | CVD), cross-border trade facilitation and customs/export controls compliance. He assists clients in developing import and export compliance programs and has represented clients before Canadian, U.S. and European agencies in the context of trade and customs proceedings. He advises corporate clients and governments on a broad range of international trade and customs law techni...
Rafal Wrzesien is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Leveraged Buyouts and Private Equity Law and Mergers and Acquisitions Law. Rafal, who practices law in Montréal, Quebec, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Rafal is held by other top lawyers in the same geographic and legal practice area.
Jean Teboul is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative and Public Law and Class Action Litigation. Jean, 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 Jean is held by other top lawyers in the same geographic and legal practice area.
Guy Poitras is a top attorney recognized by Best Lawyers in the practice area(s) of Class Action Litigation, Corporate and Commercial Litigation, Franchise Law and Product Liability Law. Guy, who practices law in Montréal, Quebec, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Guy is held by other top lawyers in the same geographic and legal practice area.
With extensive experience in real estate law, including 10 years as a notary, Stéphane Lalande has developed a practice focused mainly on acquisitions, financings and real property dispositions. He has been involved in many transactions acting for developers and investors regarding major real estate, office building and commercial center projects. Mr. Lalande has extensive experience representing both lenders and borrowers regarding all types of real estate financings, such as mezzanin...
Marc-André Groulx is a top attorney recognized by Best Lawyers in the practice area(s) of Labour and Employment Law. Marc-André, 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 Marc-André is held by other top lawyers in the same geographic and legal practice area.
Alexandre Gagnon works in corporate debt financing. He represents lenders, including lending syndicates, and participates in various aspects of debt restructuring and project financing. Alexandre prepares and finalizes credit agreements, security documents and other related documents. He also represents clients in connection with corporate borrowings. Alexandre has built a reputation for excellence among peers and clients by working in multi-disciplinary teams during major multi-million dolla...
Jean-Philippe Therriault is a member of the firm’s Environmental, Energy and Climate Change group. His practice focuses on environmental, construction and public procurement law. In environmental law, Jean-Philippe advises clients on compliance issues and helps them navigate the permit and approval process. He has extensive experience in commercial and real estate transactions involving environmental issues, including the management of risks associated with release of contaminants, cont...
As a preeminent labour and employment lawyer, Gary Rosen principally acts in discipline, hiring, and restructuring files as well as in traditional labour law matters such as applications for certification, collective bargaining and grievance arbitration. In addition, he possesses major and renowned experience in commercial litigation. Always seeking solutions that are in the best interest of the client from both a practical and a financial perspective, Mr. Rosen represents small, medium-sized...
Explore and Learn
Recognizing Legal Leaders: The 2027 Best Lawyers Awards in Australia, Japan and Singapore
by Jamilla Tabbara
Market drivers, diversity trends and the elite practitioners shaping the legal landscape.
How Far Back Can the IRS Audit You?
by Bryan Driscoll
Clear answers on IRS statutes of limitations, recordkeeping and what to do if you are under review.
Musk v. Altman: The Lawyers Behind the Case
by Jamilla Tabbara
Meet the Trial Lawyers Shaping One of AI's Biggest Legal Disputes.
The Best Lawyers in France 2027: Peer-Reviewed Excellence
by Jamilla Tabbara
Seventeen editions of peer trust, a growing profession and a dynamic legal market.
Announcing the 2027 Best Lawyers Awards: Austria, Germany and Switzerland
by Jamilla Tabbara
Celebrating the legal professionals throughout Central Europe.
The Legal Teams Behind the Blake Lively–Justin Baldoni Settlement
by Grace Greer
A closer look at the legal teams and attorneys involved in the Blake Lively–Justin Baldoni litigation and its resolution.
How AI Is Changing the Way Clients Find Lawyers
by Jamilla Tabbara
Best Lawyers CEO Phil Greer explains how AI-driven search tools are reshaping legal marketing and why credibility markers matter.
When Is It Too Late to Stop Foreclosure?
by Bryan Driscoll
Understanding the foreclosure timeline, critical deadlines and the legal options that may still protect your home.
Can You Go to Jail at an Arraignment?
by Bryan Driscoll
Understanding What Happens at Your First Court Appearance.