Marie-Hélène Constantin

Julien Archambault is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation, Director and Officer Liability Practice, Insolvency and Financial Restructuring Law and Insurance Law. Julien, 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 Julien is held by other top lawyers in the same geographic and legal practice area.

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

Sébastien Richemont is a seasoned litigator within the Litigation and Dispute Resolution group in Montreal. His main areas of practice are class actions, shareholders disputes, arbitration, manufacturers and professional liability, contractual litigations and securities matters. With 25 years of trial and dispute resolution experience, Sébastien has leading-edge knowledge that allows him to understand the legal issues that clients may face while having practical know-how to supp...

Luc Lissoir is a partner in the firm's Montréal office, practising in securities and corporate and commercial law with particular emphasis on public and private securities offerings, project financing, private equity, mergers and acquisitions and general corporate counselling. After having served as managing partner for Lafleur Brown from 1995 to 2000 and for Gowlings from 2000 to 2007 and following a change in governance, Luc was an active member of the six person Board of Trustees of...

Michaël Plante is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Michaël, 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 Michaël is held by other top lawyers in the same geographic and legal practice area.

Suzie Lanthier is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation. Suzie, 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 Suzie 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...

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...

Peter Castiel is Chair of the Firm and the Executive Committee, where he oversees the strategic direction, management and client service for the Firm. Peter is also focused on his mergers & acquisitions practice. He has extensive expertise in advising private equity funds, sovereign wealth funds and leading public and private companies in connection with complex acquisitions, divestitures and investments.

Sylvain Vauclair has been practicing insolvency law for over thirty years and represents all stakeholders, from debtors and creditors’ committees to bondholders, CCAA monitors, trustees in bankruptcy and lenders. His work is now particularly focused on restructuring matters. He appears in the insolvency law section of the following law directories: Who's Who Legal, Best Lawyers in Canada, The 2008 Lexpert®/American Lawyer Guide to the Leading 500 Lawyers in Canada, Lexpert Directory...