Since being called to the Québec Bar in 2000, Mtre Quenneville has acquired extensive expertise in administrative law, particularly in the environmental and constitutional sectors.
As a legal advisor and litigator, Mtre Quenneville has been involved in several significant municipal, administrative and constitutional cases. He has represented clients before all the provincial and federal courts, including twice before the Supreme Court of Canada in Québec v. Lacombe (aeronautics industry) and Châteauguay (radiocommunication/telecommunication). He was also among the lawyers who represented the Québec Bar before the Supreme Court in the Reference re Securities Act.
From September 2011 to June 2013, Mtre Quenneville was a member of the Supreme Court of Canada Liaison Committee, which aims to discuss the ways in which the functioning of the Supreme Court of Canada could be improved with Court officials and judges.
In 2013, in recognition of his professional achievements, Lexpert® Magazine named him a "Lawyer to Watch" as one of the best Canadian lawyers of his generation.
Mtre Quenneville has published several articles on constitutional and urban planning law. In 2011 and 2013, he spoke at municipal law conferences organized by the Québec Bar on recent developments in the sector.
In March 2018, he will speak at the largest symposium organized by the Québec Bar to discuss class actions and the impacts of the application of constitutional doctrine on claims brought under the Consumer Protection Act and the Civil Code of Québec. In addition, since winter 2016, he has been invited by constitutional law professors at UQAM on numerous occasions to speak to students on the aspects of practice in this area of law.