About Guillaume

Guillaume is an Ottawa lawyer in the Real Estate & Development and Commercial Leasing groups, practising commercial leasing, financing and all aspects of real estate transactions. He is originally from northeastern New Brunswick and works with clients in both French and English. Guillaume earned his JD from the University of Ottawa in 2014 and a BBA from Universite de Moncton in 2010, and was called to the bar in 2016. He belongs to the Association des juristes d'expression francaise de l'Ontario and the County of Carleton Law Association.

Practice areas

Real Estate Law

Education & credentials

Law school
University of Ottawa
Undergraduate
B.B.A., Universite de Moncton (2010)

Listing compiled from public sources in July 2026. Confirm Guillaume Chiasson’s licence and standing in the Law Society of Ontario directory ↗