Matthew T. Oliver

With more than 35 years of experience in the field and a sought-after expertise in negotiating working conditions, Michel Brisebois advises large companies on major strategic issues, whether governed by provincial or federal labour laws. Michel assists major clients in negotiating collective agreements with workers’ unions. He also represents private and semi-public companies at arbitration hearings before tribunals at all levels. He advises and acts as an attorney for grievances or com...

Nathalie Proulx is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law. Nathalie, who practices law in Montréal, Quebec, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nathalie is held by other top lawyers in the same geographic and legal practice area.

Jacques Provencher is a partner-owner in the firm who advises our clients on a variety of managerial issues, and represents companies of all sizes in different economic sectors before administrative tribunals and civil courts, in both federal and provincial jurisdictions. The negotiation of collective agreements, grievance arbitrations, complaints before the Tribunal administratif du travail (TAT), occupational health and safety matters, and Human Rights Charters ' issues are part of his dail...

Cassandre Louis is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative and Public Law and Municipal Law. Cassandre, who practices law in Montréal, Quebec, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Cassandre is held by other top lawyers in the same geographic and legal practice area.

Michel Savonitto is a top attorney recognized by Best Lawyers in the practice area(s) of Class Action Litigation and Corporate and Commercial Litigation. Michel, 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 Michel is held by other top lawyers in the same geographic and legal practice area.

Raphaël represents a variety of clients, including several large companies and municipalities before courts and administrative tribunals at all levels. He has conducted several long-term trials and is thus very familiar with managing voluminous files. He is a recognized author and lecturer, particularly on issues related to abuse of process. His texts are frequently cited by the courts. He joined IMK in 2015 after practicing for 15 years with a national firm, where he developed an import...

Guy Lavoie has know-how and sound experience in labour and employment law, as well as in workers compensation and occupational health and safety. He advises the firm’s clients and represents them before various administrative and civil courts in matters involving collective and individual labour relations, occupational health and safety, discrimination and harassment. He also works on the labour and employment law aspects of mergers and acquisitions in collaboration with the firm’...

Austin Del Rio is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Austin, who practices law in Montréal, Quebec, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Austin is held by other top lawyers in the same geographic and legal practice area.

Josée Cavalancia is a top attorney recognized by Best Lawyers in the practice area(s) of Class Action Litigation and Corporate and Commercial Litigation. Josée, who practices law in Montréal, Quebec, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Josée is held by other top lawyers in the same geographic and legal practice area.

Erik P. Masse is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation and Product Liability Law. Erik P., who practices law in Montréal, Quebec, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Erik P. is held by other top lawyers in the same geographic and legal practice area.