Marianne Ignacz

Senior Partner

Marianne Ignacz

Montréal

T:+1 514.847.4511

F:+1 514.286.5474

Marianne Ignacz’s practice focuses on commercial, corporate and civil litigation, class actions, product liability and professional liability, and more particularly auditors’ liability. She regularly represents clients before all the courts of Quebec and disciplinary bodies. She also assists professionals in providing testimony in investigations undertaken by various regulators or agencies.

Ms. Ignacz has significant experience in successfully handling class action litigation, including securities and shareholders’ claims, pharmaceutical and product liability and civil liability.

She has also been involved in numerous complex international arbitration cases that have proceeded under the AAA (American Arbitration Association) Rules and the ICC (International Chamber of Commerce) Rules of Arbitration and has worked extensively with US and foreign counsel in this regard.

Ms. Ignacz is co-chair of the firms’s national class actions team and a member of the firm’s ethics and conflicts of interest committee. Ms. Ignacz is president of the Canadian Bar Association, Quebec Branch, Class Actions Section and a member of the advisory board of the Class Action Defence Quarterly.

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  • Year of call
    Quebec 1989
  • Law school
    LL.B., Université de Montréal, 1988
  • Selected client work

    Ms. Ignacz has represented or is currently representing:

    • GlaxoSmithKline in a proposed class action in relation to allegations of dependency and withdrawal symptoms arising from the use of the anti-depressant Paxil. The Quebec Superior Court dismissed the motion for authorization in 2009 and the decision was unanimously maintained by the Quebec Court of Appeal in November 2010
    • GlaxoSmithKline in a proposed class action relating to allegations of suicide further to the use of Paxil
    • Deloitte in a class action further to the sale of promissory notes to investors in the alleged Mount Real fraud
    • Deloitte in a class action taken on behalf of investors in a public company
    • Émergis and Telus Health Solutions, in a proposed class action taken on behalf of members of the Association québécoise des pharmaciens propriétaires that raises issues relating to contractual arrangements
    • Hydro-Québec in a proposed class action in Quebec arising from the 1998 Ice Storm
    • Hydro-Québec in the context of international arbitration further to the 1998 Ice Storm
  • Rankings and recognitions
    • Expert Guides, 2014: Women in Business Law, top practitioner advising on business law re. Life Sciences
    • Canadian Legal Lexpert Directory, 2014: Recommended in Class actions
    • Lawyer Monthly Women in Law Awards 2014: recipient of a Women in Law award in recognition of her work in the Life Sciences sector 
    • LMG Life Sciences 2013, 2014: identified as a Life Science Star
    • International Who’s Who of Life Sciences Lawyers: 2013, 2014
    • Canadian Legal Lexpert Directory, 2012: recommended in Professional Liability
    • LMG Life Sciences Awards 2013: recipient of the Canadian Product Liability Attorney of the Year award
    • Mateesco-Matte Award in transportation law
    • Bar of Montreal Award
    • Young Bar Association of Montreal Award
  • Memberships and activities
    • Canadian Bar Association, Quebec Branch
      • President, Class Actions Section
    • Member of the advisory board of the Class Action Defence Quarterly