Marshall received her bachelor’s degree from Spelman College in 1995 and her Juris Doctor from John Marshall Law. Her professional experience includes working as an attorney and a social worker. She has been associated with the Black Women’s Lawyers Association, CCBA, JCM Church board trustee and treasurer, Ring of Hope boxing program, and the Greater Food Depository food pantry. She was assigned to the Committee to Address Disproportionate Minority Representation in the Courts.