Originally from Black Mountain NC, Mavis graduated from UNC-Chapel Hill and Pepperdine School of Law.  In addition to being a lawyer, Mavis has extensive experience in conflict resolution and a Master of Dispute Resolution degree.

Attorney Gragg currently serves as the director of the Sustainable Forestry and African American Land Retention Project at the American Forest Foundation.

Prior to this role, Mavis founded the Gragg Law Firm, PLLC, where she assisted her clients in estate planning, estate administration and heirs property matters. In her practice, Mavis synthesizes her professional experiences as a lawyer and mediator with her passion for helping individuals and families maintain and grow wealth. She accomplishes this by dedicating her energy to assisting her clients with estate planning, estate administration, and heirs property matters. Mavis particularly appreciates working with clients who have low to moderate wealth because she is able to counsel them in planning and problem solving that meets critical needs. 

She was appointed by Governor Roy Cooper to the North Carolina Parks and Recreation Authority in 2018. Additionally, in 2020, Mavis launched HeirShares, a tech start-up providing solutions for heirs property owners. Mavis serves as the chair of the North Carolina Parks and Recreation Authority. She is the former chair and current board member of the Triangle Land Conservancy. With her sister, Mavis co-founded Black Women Drone and the Gragg Family Fund.