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Marie-Hélène Constantin

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  • Drafting and negotiating licensing, services and distribution agreements and other complex technology-related arrangements

  • Advising clients on technology, intellectual property and regulatory issues in the context of large technology-related corporate transactions

  • Advising retailers on e-commerce issues, including consumer protection and regulatory issues

Marketing & Advertising

  • Advising clients on marketing and advertising issues, including the review of various promotions, contest issues, online advertising and social media

  • Advising clients on language issues, including with respect to websites, signage, labelling and advertising

Life Sciences

  • Advising pharmaceutical, biotechnology and medical device manufacturers and distributors on regulatory, contractual and procurement issues


  • Reviewing privacy policies, consent forms, websites, insurance and financial services applications and other documents to identify privacy issues and drafting adequate data protection language

  • Advising clients on data transfer issues in the context of large corporate transactions (including patient information, customer information or employee information) and advising various organisations on cross-border data transfer issues

Awards & Recognition

Marie-Hélène has been recognized as a leading lawyer in the following publications:

  • The Canadian Legal Lexpert Directory 2020 (Computer & IT Law)

  • The Best Lawyers in Canada 2020 (Information Technology Law, Privacy and Data Security Law and Health Care Law)

  • The Best Lawyers in Canada 2019 (Information Technology Law and Privacy and Data Security Law) (Lawyer of the Year - Health Care Law)

  • Who's Who Legal: Canada 2019 (Data)

  • Who's Who Legal: Canada 2017 (Telecommunications Media & Technology)

Professional Activities

Marie-Hélène served on the board of directors of the Canadian IT Law Association from 2012 to 2016 and was president of the Information, Intellectual Property and Telecommunications Section of the Canadian Bar Association (Quebec Chapter) from 2007 to 2009. Marie-Hélène practises, lectures and publishes in both English and French.

She is Co-chair of the Blakes Privacy group.

Professional Appearances
  • Speaker: Overview of Canadian Personal Information Protection Legislation
    Privacy Summit, Blakes Business Class Seminar, Montréal, Quebec, June 4, 2019.
  • Speaker: Rappel des meilleures pratiques pour la rédaction de contrats liés à la technologie - Contract Drafting Refresher: The Basics and Best Practices for Your Technology Agreements
    Blakes Business Class Technology Seminar, Montréal, Quebec, February 6, 2019.
  • Speaker: Développements récents 2018 en TI en droit québécois
    2018 CAN-TECH LAW 22nd Annual Conference, Montréal, Quebec, October 29, 2018.
  • Speaker: Highlights of Quebec Legislative Changes
    Blakes Business Class Life Sciences Seminar, Toronto, Ontario, November 15, 2017.
  • Speaker: Preparing for the New Canadian Breach of Security Safeguards and EU Data Protection Rules
    Blakes Business Class Seminar on Technology, Montréal, Quebec, October 3, 2017.
Media Activities
  • Quoted: Privacy Protections in the Data Rooms
    Article by Sandra Rubin, Lexpert Online Magazine, November 13, 2017.
Admitted to the Quebec Bar - 1996
B.C.L., McGill University - 1995
LL.B., McGill University - 1995
B.Mus., McGill University - 1990
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