This article examines the current state of family intervention in the context of a first psychotic episode (FPE). It attempts to document the components of the collaborative relationship between 54 parents and the social workers in a Quebec City clinic specialized in the treatment of first psychoses. It also attempts to identify, from the parents’ perspective, what promotes or hinders this collaborative relationship. The results indicate that a significant part of the collaboration depends on the social workers’ interpersonal skills as well as their knowledge of, and experience with, the families and youth in question. Furthermore, the parents’ discourse indicated that in-depth engagement by the social workers plays an important role in the establishment of collaborative practices. The results also expose certain constraints encountered in this practice, in particular, the issue of confidentiality as well as the approach employed to promote engagement in the intervention by the family system, or at least those members playing a supportive role within the family. Recommendations concerning family intervention and social work practice are suggested.