This article represents the 28 year history of Professional Development Schools at the University of South Carolina and explains how the network continues to grow and thrive, in part, by the application of a collaborative leadership model. Our goal in this article is to recognize and understand how our continued efforts, as professional development school (PDS) partners, helped grow, change and sustain the Professional Development Schools Network at the University of South Carolina (UofSC) since its inception in 1990. We share our history and describe the context within which we enact our PDS Network of 21 schools in five school districts and most recently a PDS District. Subsequent sections of the article discuss our evolving commitments to the network via our mission, funding, planned events, and assessment.