Chantale Cousineau-Mahoney

Lawyer |

" With my legal expertise and financial background, my goal is to achieve quality and cost-effective results for all my clients "

Chantale joined Sicotte Guilbault as a new member of the Business Law Group in January 2021. Before joining Sicotte Guilbault, Chantale practiced corporate and commercial law with a mid-sized firm in Ottawa.

Chantale graduated from the University of Ottawa French Common Law program in 2016 and was called to the Ontario Bar in 2017. While in law school, Chantale won the Tax Executives Institute Award for highest marks in tax law and volunteered at the Employment Law Clinic. Chantale also holds a Masters in Business Administration (MBA) and she has her Chartered Professional Accountant designation (CPA, CGA).

Prior to her law practice, Chantale had an extensive career in the federal public service where she held positions of Assistant Deputy Minister and Chief Financial Officer in government departments and Crown corporations. Combined with her legal knowledge, this experience has allowed Chantale to work collaboratively with accountants and financial planners to meet her clients’ business objectives.

Above all her legal and business contributions over the years, Chantale is most proud of her community work aimed at fostering seniors’ rights and promoting animal welfare.


  • Mergers and Acquisitions
  • Business Structures and Agreements
  • Corporate Restructuring and Reorganizations
  • Commercial Agreements and Leases
  • Business Purchase and Sale
  • Services for Professional Corporations

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