This article presents the validity bias review feedback and outcomes of new performance-based assessments to evaluate candidates seeking principal licensure. Until now, there has been little empirical work on performance assessment for principal licensure. One state recently developed a multi-task performance assessment for leaders and has implemented it for statewide use in initial principal licensure decisions; this development process is described here, focusing on content validity and bias review, and incorporates candidate and program faculty validiation as well. The results demonstrate the content validity, relevance, and feasibility of this new performance assessment for leaders, and yield implications for leader assessment generally.