Mann is the co-founder of the African American Redress Network (AARN), a collaboration between Columbia University, School of International and Public Affairs, Columbia University, Institute for the Study of Human Rights, and Howard University, Thurgood Marshall Center. Her research and practice focus on the intersection of U.S. history, human rights, and reparations. Mann previously served as the Executive Director for the Civil Rights and Restorative Justice Project at Northeastern University’s School of Law and VP of Research for the Georgetown Memory Project. In addition, Mann served as director of clinical experiences at Marymount University and was a researcher for the American Educational Research Association. Mann is a seasoned educator with over ten years of postgraduate teaching experience and ten years as a public-school history educator. Mann started her career as a conflict resolution specialist and has decades of experience as a political, grassroots organizer.