Marie-Hélène practises commercial law and advises clients in a variety of industries, including information technology, pharmaceutical, and biotechnology companies. She regularly provides advice in relation to internet, e-commerce, life sciences, privacy, marketing and advertising, and intellectual property matters. Marie-Hélène assists corporations involved in the licence, sale, distribution, and marketing of technology, goods, and services to comply with Canadian legal requirements, including those specific to the province of Québec. She has developed expertise in consumer protection issues related to online sales and regularly advises organizations on compliance with privacy, contests, language, labelling, and other regulatory requirements. Marie-Hélène's practice involves drafting complex commercial agreements relating to licensing, distribution, commercialization, and transfer of technology, and advising clients on large technology-related corporate transactions. Marie-Hélène practises, lectures, and publishes in both English and French.
On June 5, 2018, Transurban (ASX: TCL) acquired 100% of the equity interests in the A25 toll road asset and concession in Montréal, from Macquarie Infrastructure Partners. Transurban has assumed responsibility for the management and operations of the A25.