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Williams, Mark B.

Mark B. Williams - Warrenton, VA

Attorney at Mark B. Williams & Associates, PLC

Sexual Assault Lawyers in Warrenton, VA

27 Culpeper Street Warrenton, VA 20186

  • Free Consultation

Warrenton Sexual Assault Lawyer

Updated: 02/16/2026

Areas of Practice

  • Sexual Assault
  • Criminal Law
  • DUI/DWI
  • Drug Related Offenses
  • Litigation & Appeals
  • Motor Vehicle Accidents - Plaintiff
  • Personal Injury - Plaintiff
  • Traffic Violations
  • Consultant to attorneys for sex crime defense and trial strategies

Attorney Information

Overview

Following a successful career as a social worker, Mark began his law career as a solo practitioner, opening his first office in his home. Since that time, he has added Alyssa Phillips, a well-respected family law attorney, to the firm and has mentored several young attorneys who have now moved on to open their own successful law practices. Practicing throughout Northern Virginia and the Virginia Piedmont regions, in both state and federal courts, Mark has represented clients charged with everything from the simplest traffic violation to capital murder, including 30 homicide cases and 150 felony trials.

Mark is well known for his expertise in sex crime defense. He has represented clients in dozens of sexual assault cases and is valued by his peers as a consultant for sex crime defense and trial strategies. As a former investigator of child sexual abuse, he brings a unique perspective to the defense of these cases.

A newly formed collaboration with Walker Jones, PC now finds Mark working with peers who bring additional experience in criminal defense and prosecution, adding this element of expertise to the defense strategy for clients. This combination of viewpoints builds the best legal defense available to clients of the firm.

Mark has spent his career helping people through the most difficult times of their lives and in doing so has become a highly respected defense attorney. He considers each person, the facts of the case, what the defenses are, and works to assertively represent the interests of his client at every part of the process, sometimes negotiating a favorable plea deal or defending before a judge or jury. This focus on the interests of those he represents and his effort to obtain the best outcome has earned Mark the loyalty of his clients, many of whom continue to make referrals to him.

When Mark is not working, he spends time with family, works in his yard, reads and takes care of his goats and dogs.


Education

  • Legal Education

    • George Mason University School of Law, Arlington, Virginia, 1990
      J.D.
  • Non Legal Education

    • Mary Washington College, Fredericksburg, Virginia
      B.A.

Bar Admissions

  • Virginia, 1990
  • U.S. District Court Eastern District of Virginia
  • U.S. District Court Western District of Virginia

Other Affiliations

  • Virginia State Bar
  • Virginia College of Criminal Defense Attorneys
  • National Association of Criminal Defense Lawyers
  • Fauquier County Bar Association
  • Fauquier Chamber of Commerce

Reviews

Customer Reviews for Mark B. Williams

5.0 out of 5
1 Review
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1 Review
  • 5
    100%
  • 4
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  • 1
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Highlights

  • 5.0 Value
  • 5.0 Quality of Service
  • 5.0 Professional Competence
  • By Anonymous on Sep. 23, 2025
    Hired Attorney 2025
    Recommends this Attorney
    Atty. Williams made me feel at ease and confident that he can help me with my traffic violation ticket. He took the time to call me directly and answer my questions. His office staff are very professional, prompt and helpful. His fees compared to others I inquired is much more reasonable considering also his years of experience in this field. True enough as he had explained and eased my mind, he was able to get a favorable outcome for my case. I’m grateful for his legal support and definitely recommend!
    Value: 5.0 out of 5
    Quality of Service: 5.0 out of 5
    Professional Competence: 5.0 out of 5

Contact

Google Map

Warrenton, VA

27 Culpeper Street
Warrenton, VA 20186

Directions

Phone: 540-254-0757

Fax: 540-349-8579

Email: Send a message

Website: https://www.markbwilliams.com

  • Credit Cards Accepted
  • Free Consultations

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