This article outlines the main success conditions and issues experienced for a concertation strategy in domestic violence and child maltreatment developed and implemented in Quebec City. The professionals who have experienced this strategy evaluated it by completing auto-administered questionnaires. Results indicate that power struggles, lack of time and absence of some clinical expertise are issues during concertation. The positive attitude of professionals, the presence of a group facilitator, the clarification of roles and mandates, and the presence of all the professionals concerned are success conditions.