Marc A. D'Heureux

Marc A. D'Heureux

Family Lawyer

Marc focuses his practice on family law.

He has years of experience handling all aspects of family law including prenuptial agreements, divorce, child custody, support, and division of property. He represents clients in the negotiation of separation agreements out of court and also represents clients in family court in Oshawa and Toronto on a regular basis.

In addition to representing clients in family court, Marc is an experienced collaborative family lawyer. He has completed Level Two Collaborative Family Law training and is a member of Collaborative Practice Durham Region (, the association of Durham Region collaborative lawyers. Collaborative Family Law is a way of resolving family law disputes outside of the court system through a series of four-way meetings between the separating spouses and their lawyers. The goal of the process is to achieve a negotiated settlement that takes into account the interests of both spouses and their children while avoiding the negative side-effects that adversarial court proceedings inevitably have on the family.

Marc was born and raised in Toronto. He studied International Relations at Trinity College, University of Toronto, where he obtained his Bachelor of Arts degree. He also has a Juris Doctor degree from the Faculty of Law at the University of British Columbia in Vancouver.

When not at work Marc enjoys cycling and spending time with his family.

Marc may be reached at 905-427-4077 ext. 27


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