As a paralegal, Hélène Joli-Coeur has specialized in the field of co-ownership law for more than a decade. She is particularly involved in mandates relating to the preparation of meetings of co-owners, the start of new syndicates of co-owners, the implementation of declaration of co-ownership. She assists legal professionals in the updating and analysis of declarations of co-ownership. In addition, she assists directors and managers on various aspects surrounding the management of their co-ownership.

Since 2010, she has been part of the editorial team of Condoliaison, a magazine specializing in co-ownership published by the Québec Co-owners and Manager Association (Regroupement des gestionnaires et copropriétaires du Québec (RGCQ). In addition, Hélène has been a teacher since 2014, as part of the Co-ownership Management program at Cegep St-Laurent. It offers the course "Introduction to co-ownership".