Mary Holper is Associate Dean for Experiential Learning, Director of the Immigration Clinic, and an associate clinical professor at Boston College Law School. During her time at BC Law, she has served as a visiting assistant professor (2008-2009), human rights fellow for the Boston College Center for Human Rights and International Justice (2007-2008), and detention fellow for the Catholic Legal Immigration Network, Inc. at Boston College’s Immigration and Asylum Project (2005-07).

Prior to joining BC Law, Holper was an associate professor at Roger Williams University School of Law, where she founded and directed the Roger Williams University School of Law Immigration Clinic. She began her career as an Equal Justice Works Fellow at the Capital Area Immigrants' Rights Coalition in Washington, D.C.

Throughout her career, Holper has represented immigration detainees who face removal. She has participated in impact litigation that challenges the overuse of mandatory detention, indefinite detention, and the classification of certain crimes as “aggravated felonies” in immigration law. In addition, Holper has represented other vulnerable noncitizen populations such as refugees, juveniles, victims of domestic violence, and victims of violent crime.

Holper has spoken on numerous panels about immigration issues, particularly on the intersection of immigration law, crimes, and removal proceedings. She has written and co-authored articles for various handbooks, reference guides, and law reviews regarding immigration issues.