Exploring how school leaders address underrepresented student voices, meaning those of marginalized experiences along the continuum of social identity including though not limited to race, class, gender, immigration, and LGBTQ issues in schools is more essential than ever following the novel coronavirus of 2019 (COVID-19). Principals' social identities (i.e., race, class, and gender), and their connected social locations and personal histories reveal how their leadership styles can contribute to the support of marginalized communities. Hence, this qualitative research study employed a case study methodology to investigate whether and how the social identities and lived experiences of principals in the Brooklyn and Bronx school districts of New York City inform their school leadership practices and help them navigate the policies in place to address social constructions of difference and other critical issues in highly diverse schools. Guided by the critical case sampling method, a total of five principals native to four different countries were selected for their diversity and years of experience in NYC school leadership were interviewed using a semi-structured protocol. Both the research questions and study protocol drew on multiple leadership theories and applied a social justice leadership lens to reveal if and how urban public-school leaders support their school communities by advocating for equity, inclusion, and diversity. Six themes intersected by immigrant narratives emerged from the data, creating a shared social identity and connected purpose among the participating principals. Each principal expressed their social identities metaphorically through their respective immigrant experiences in a sense-making process that explained their leadership styles and understanding of complex issues that occurred in their schools, pre- and post-pandemic. The leadership narratives explored may serve as resources and catalysts for school transformation among principals facing similar diversity and student experiences. My knowledge as a participant observer and former NYC student serves to increase trustworthiness for the findings and affirm the vast implications for future principal leadership practice and research. This dissertation is available in open access at AURA (https://aura.antioch.edu/) and OhioLINK ETD Center (https://etd.ohiolink.edu). [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]