This mixed methods study was completed with principal preparation candidates. Data was collected using the Multicultural Efficacy Scale (MES) and focus group interviews. Principal candidates' multicultural efficacy was measured before and after participating in monthly diversity seminars and reflections. The diversity seminars provided first-person storytelling from diverse members of school communities including individuals from different LGBTQ, race, religion, socio-economic status, and language backgrounds. The study found principal candidates had improved multicultural efficacy at the end of the year-long diversity series. Research shows this could lead to supportive behaviors as social justice-oriented school leaders.