(703) 369-4738

Brett A. Callahan

Brett Callahan

Brett A. CallahanAssociate

Direct: (703) 479-3180

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Brett Callahan is a Litigation Associate at Vanderpool, Frostick & Nishanian.  Her focus in approaching any case is to identify and work toward the solution that is tailored to best serve her client’s needs.  That means approaching problems from different angles to come up with the most practical and cost effective way to achieve her client’s goals, either through traditional negotiations and litigation or use of alternative dispute resolution options.  Brett takes a client driven big picture approach to her representation, working with clients to not only address current concerns but identify future vulnerabilities and fix them before they become problems.  She works with clients to ensure they are in compliance with federal, state, and local laws and regulations as needed.

Virginia State Bar Young Lawyers ” Significant Service Award”  2017

Virginia Lawyers Weekly “Up and Coming Lawyers” 2016

Recognized by Virginia Business Magazine as “Legal Elite” 2016, 2018

Professional Activities

  • Virginia Women’s Attorney Association, Prince William Chapter, President 2017-2018.
  • Virginia Women’s Attorney Association, Secretary 2020-2021
  • Leadership Prince William, Class of 2016
  • Center for the Arts of Greater Manassas/Prince William County at the Candy Factory dba the ARTfactory, President 2019-2021
  • Prince William Chamber of Commerce Young Professionals of Northern Virginia, Steering Committee
  • Prince William Chamber of Commerce, Strategy Planning Committee
  • Manassas-Bull Run Rotary Club, Vice President 2015-2018
  • Prince William County Bar Association, Member


  • Virginia Lawyers Weekly “Up and Coming Lawyers,” Inaugural Class of 2016
  • Virginia Business Magazine’s Legal Elite’s Young Lawyers, 2016, 2018, 2019
  • Virginia State Bar Young Lawyers “Significant Service Award”, 2017
  • Successfully represented business clients in multiple real estate matters before the Supreme Court of Virginia regarding issues of jurisdiction and statutes of limitations


  • Invalidated a special use permit for adjacent parcel via summary judgment on behalf of homeowners


  • Obtained judgment at trial for a non-profit beneficiary in will contest dispute


  • Successfully represented clients in federal court and all levels of state court throughout Virginia in real estate, landlord /tenant, contract, construction, and fiduciary matters
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Erica Hilland
Legal Assistant
(703) 369-4738



  • Juris Doctor, George Mason University School of Law, 2007
  • Bachelor of Science, Cornell University, 2004

Bar Admissions

  • Virginia State Bar
  • Supreme Court of Virginia and all lower Virginia courts
  • Maryland Bar / All Maryland state courts
  • Supreme Court of the United States of America
  • The U.S. Court of Appeals Fourth Circuit
  • U.S. District Court for Eastern District of Virginia
  • U.S. District Court for the District of Maryland
  • U.S. Bankruptcy Court for the Eastern District of Virginia
  • Certificate of Good Standing for the U.S. District Court for the Western District of Virginia
  • Certificate of Good Standing for the U.S. Bankruptcy Court for the Western District of Virginia

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