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About me

Maryland & Virginia criminal defense lawyer Jonathan R. Oates is also licensed to practice law in Virginia. His practice focuses on criminal defense, personal injury and civil litigation. He is in court nearly every day representing clients across Virginia and Maryland.


Criminal defense lawyer Jon Oates is also experienced fighting for clients in front of a jury. He has tried multiple jury trials covering a range of felony charges, including two trials for first degree murder.


Prior to joining Jezic & Moyse, LLC,  Jon served as a law clerk to the Honorable Paul A. Hackner in the Circuit Court for Anne Arundel County, Maryland.

Jon also served in the United States Senate as a legislative staff member for United States Senator Ken Salazar. As a staff member, Jon focused on multiple issue areas before the Senate, including criminal justice, civil rights, and immigration. During law school, Jon also served as a law clerk to John G. Gill, Jr. and Gill Sippel & Gallagher, a law firm in Rockville, Maryland. During his clerkship with Mr. Gill, Jon worked on multiple cases involving serious personal injury, medical malpractice, and wrongful death in state and federal courts across Maryland, Virginia and Washington, D.C.


Maryland & Virginia criminal lawyer Jon Oates earned his law degree from the Catholic University of America Columbus School of Law. During law school, he was an active member of the Society of Trial Advocates and Moot Court. A Colorado native, Jon graduated from Colorado State University, earning a double-major in Economics and Political Science.


Languages spoken: English, Spanish

Photos and videos

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Practice areas


  1. Criminal Defense: 70%
    1 year
  2. Personal Injury: 30%
    1 year


Payment types:

Cash, Check, Credit card

Attorney endorsements

5 total 

Are you an attorney? Endorse this lawyer

  • Faraaz A Malik Jindani

    I highly endorse Jonathan Oates and recommend him to anyone looking for an attorney. He has great work ethic and knowledge of the law. He offers unique and innovative solutions in resolving issues for his clients. In addition, he tailors his representation to meet every client's eneedsI endorse this lawyer.


    Faraaz Jindani Criminal defense Attorney
    Relationship: Fellow lawyer in community

  • Raquel Melody Smith

    I endorse this lawyer. Jon is a very aggressive and experienced criminal defense lawyer. If facing criminal charges in Maryland or Virginia do no hesitate to hire him.


    Raquel Smith Criminal defense Attorney
    Relationship: Co-worker


VAAuthorized to practice law201003/31/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Rising starSuper Lawyers Magazine2014
Work experience
TitleCompany nameDuration
Criminal Defense AttorneyLaw Offices of Jezic & Moyse, LLC2009 - 2015
Association namePosition nameDuration
The Virginia Bar AssociationN/AN/A
The Maryland State Bar AssociationN/AN/A
Virginia Association of Criminal Defense LawyersN/AN/A
Virginia Trial Lawyers Association, Social Security SectionN/AN/A
Maryland Criminal Defense Attorneys' Association, Legislative CommitteeN/AN/A
Fairfax County Bar AssociationN/AN/A
Arlington County Bar AssociationN/AN/A
Montgomery County Bar AssociationN/AN/A
School nameMajorDegreeGraduated
Catholic University of America, Columbus School of LawLawJD - Juris Doctor2008
Colorado State UniversityEconomics and Political ScienceBS - Bachelor of ScienceN/A