The reasonable, moderate majority in our area deserves a representative who shares their values. A fiscal conservative who will not hold the business of running the Commonwealth hostage to personal social agendas, I am a mainstream moderate and an experienced problem-solver.
I prefer solutions over factions. I intend to represent all of the 33rd District, including our multitude of Independents and moderate Republicans, and advocate for a reasonable, responsible government that serves all Virginians and protects our way of life.
As a fomer prosecutor, I understand the importance of state government in providing resources necessary for law enforcement, and all public safety professionals, to do those jobs that are essential to our quality of life.
I have a record of managing public resources in a responsible fashion while meeting the needs of all citizens.
Mary was born in Winchester, VA to Joy Hollar Costello and the late Lewis M. Costello, the fourth of five children. Mary lives in Berryville, with her husband, Bill, a career public school educator. They have a young daughter, Bray, and two dogs.
Mary began practicing law in Martinsburg, WV then in Berryville before opening her own practice in Winchester. During this time, she served as an Assistant Commonwealth’s Attorney for the City of Winchester, prosecuting domestic violence and sexual assault cases for five years. Her small business, The Daniel Group, Attorneys at Law, PC, handles business law issues. Mary is a member of both the Virginia and West Virginia State Bars, and has been admitted to practice before the Supreme Court of the United States. Mary has also been an instructor for the Rappahannock Criminal Justice Academy.
Mary’s public service has also included providing assistance to several non-profit organizations in the region, including the Stephens City Rotary Club Scholarship Fund, the Mary Ellen Kerr Scholarship Fund, and the Child-Parent Center of Winchester. Mary is a member of the Frederick County Rotary Club, the Board of Blue Ridge Legal Services, the Coalition for Racial Unity, and a former member of the Council Against Domestic Violence and Sexual Assault.
From 2003-2008, Mary served as a member of the Clarke County Planning Commission. Since 2007, Mary has been a Berryville Town Councilor where she has promoted conservative fiscal policies while addressing the needs of Berryville’s citizens.
She went on to graduate with a B.A. from the University of Virginia and a J.D. from T.C. Williams School of Law at the University of Richmond.