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Lisa-Marie Gauthier


  • 514.878.3266
  • 514.878.5766
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Lisa-Marie Gauthier focuses her practice on both tax litigation and business law. As part of her tax litigation practice, she represents taxpayers at all stages of tax disputes, from audits to challenging decisions of government authorities through the courts in matters related to both corporate and personal income taxes, as well as consumption taxes (GST & QST).

In close collaboration with her colleagues from the Business Law team, Ms. Gauthier supports and advises entrepreneurs in various aspects of business law, especially in regards to tax planning in the event of corporate restructuring and reorganization.

Assisting both individuals as well as small and medium-sized businesses, Lisa-Marie Gauthier supports a wide range of clients, from all markets and industries.


Ongoing – Master's Degree in Tax Law, HEC Montréal
2019 – DESS, Taxation, HEC Montréal
2017 – LL. B, Université de Montréal

Professional Affiliations

  • Barreau du Québec
  • Young Bar of Montreal