This paper describes the redesign process for a Principal Preparation Program (PPP) that is grounded in strong service-learning elements and evidence-based outcomes. The PPP design team developed the Service Leadership Framework for Leadership Preparation (SLF4LP) which blends research-based service learning and servant leadership principles (Felten & Clayton, 2011; Greenleaf, 1990; Henderson & Mapp, 2002). The PPP and its faculty have a rich tradition of excellence in teaching, scholarship, and service. To preserve this legacy, the redesign process maintained a positive culture of teamwork, partnership, and collaboration among candidates, colleagues, administrators, and external stakeholders. An overview of the value-added SLF4LP components will be provided and the impact of each component will be discussed.