In this essay, Ruben Elias Canedo Sanchez and Meng L. So share the history and development of the Undocumented Student Program at the University of California, Berkeley. In describing the creation of the program, the authors offer reflections on the strategies employed to holistically support undocumented students' success on campus. By drawing on their experiences as both students and program leaders, they highlight key lessons on how universities can garner institutional resources, build staff capacity, and develop nontraditional allies for undocumented students.