This article describes a unique reflective supervision training series for community-based infant mental health (IMH) specialists and their supervisors that was designed to support the relational capacities of both supervisors and supervisees and to facilitate collaborative supervisory relationships. Qualitative evaluation results of the pilot training series indicate that the series had an impact on supervisors' sensitivity to reflection and on supervisees' capacities to use reflective supervision in their work with families. Findings suggest the training series supports professional development and also highlights the need for additional reflective supervision training content and useful assessment tools to measure the impact of reflective supervision on IMH practice.