The purpose of this article is to share with leadership educators a writing exercise designed to provide doctoral students enrolled in an Administrative and Policy Leadership course an opportunity to gain experience with building collective will for policy advocacy on a social justice issue. This article describes the use of a letter writing assignment including the background and justification for using letter writing rather than other forms of writing across the curriculum, instructions for students to complete the assignment, and examples and ideas for grading and providing constructive and instructive feedback to leadership students. The article concludes with recommendations and potential assignment modifications for leadership educators that choose to adopt this type of writing assignment within their leadership training curriculum.