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Jonathan L Katz

also known as Jon Katz

About me

Jon Katz spends nearly his entire time defending criminal defense and DWI clients, fighting for the best possible results for his clients, and repeatedly going to trial when needed. He has defended over 3000 clients in criminal court since 1991, and has taken hundreds of cases to trial. Many of Jon's trial highlights are at

Criminal defense is war, requiring being armed to the teeth, and escalating the proverbial fighting from checking before hurting, hurting before maiming, and maiming before destroying. Criminal defense is also about martial arts, using fearless cunning and strategy over brute force, and drawing from my daily martial arts practice. The stakes are often high, and the battle should be treated as a one-chance-only affair. 

My staff and I will be delighted to arrange a time for you to meet with me if you seek a criminal defense or DWI lawyer. 

More about my law practice  and experience is at and at my blog at


Languages spoken: Spanish, French, English

Photos and videos

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Practice areas


  1. DUI & DWI: 45%
    25 years, 1.25 thousand cases
  2. Criminal Defense: 45%
    25 years, 2 thousand cases
  3. White Collar Crime: 5%
    17 years
  4. Federal Crime: 5%
    17 years



Fixed (always)

Payment types:

Cash, Credit card

Attorney endorsements

29 total 

Are you an attorney? Endorse this lawyer

  • Michael Paul Bruckheim

    Do not hire Jon Katz unless you want a lawyer who is prepared to fight for you to the very end and to always look for ways to weaken the prosecutor's case and strengthen your own. Jon and i have consulted on many cases and I have always been impressed with his "warrior" mentality, which is exactly what you need when you are charged with a crime. Highly recommend.


    Michael Bruckheim DUI and DWI Attorney
    Relationship: Fellow lawyer in community

  • Jay S Marks

    I was fortunate enough to be Jon's law partner for ten years. During that time, I saw Jon's tenaciousness, legal mastery, and love of justice time and time again. It was his very special combination of doggedness, legal expertise, and commitment to his clients that I have always admired in Jon, and that invariably won the day. He is forthright, honest, and fully embraces his clients in their moment of greatest need. We - lawyers and laypeople alike - can learn so much from Jon's personal and professional commitment to fight for justice and the Constitution. If you are considering retaining an attorney for a criminal or DUI/DWI matter, look no further. You've found the best.


    Jay Marks Immigration Attorney
    Relationship: Fellow lawyer in community

Contact info

Fairfax Main Office- One block from the courthouse.

10509 Judicial Drive
Suite 101
Fairfax, VA, 22030

Arlington, Virginia, meeting location. Main office is in Fairfax.

2111 Wilson Blvd., Suite 700
Five blocks from the Arlington courthouse.
Arlington, VA 22201, VA, 22201

Rockville, Maryland, meeting location. Main office is in Fairfax.

1700 Rockville Pike
Suite 400
Rockville, MD, 20852



VAAuthorized to practice law199703/31/2016
DCActive 199007/10/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
AV-ratedMartindale Hubbell2016
Super Lawyers-listedSuper Lawyers2014
Top 800 LawyersWashingtonian Magazine2007
Appreciation awardPhilippine American Bar Association - D.C. area2000
Work experience
TitleCompany nameDuration
Owner / Criminal Defense LawyerJon Katz, P.C.2008 - Present
Criminal Defense partnerMarks & Katz, LLC1998 - 2008
Trial lawyerChaikin & Sherman, P.C.1996 - 1998
Assistant Public Defender - Trial attorneyMaryland Public Defender's Office1991 - 1996
Associate attorneyWeiner, McCaffrey, Brodsky & Kaplan1989 - 1991
Association namePosition nameDuration
Flex Your RightsBoard of Advisors2008 - Present
DMOZEditor- Constitutional Law Firm Page2001 - Present
Helping Individual Prostitutes SurviveTreasurer2002 - 2005
Free Speech Coalition of DC, MD and VAFounding President2001 - 2003
Philippine American Bar Association - DC AreaVice President1997 - 2001
National Association of Criminal Defense LawyersChampion Magazine Advisory Board1995 - 2011
American Civil Liberties Union - National Capital AreaBoard Member1992 - 1995
Legal cases
Case nameOutcome
Winning A DWI Trial By Putting Our Own Traffic Stop Witness On The StandAcquittal
Winning a DWI trial by challenging the opposing toxicologist.Acquittal.
Righting The Wrong Of A Hunch Stop, That The Cop And Prosecutor Should Have Stopped In Its Tracks.Dismissed for a bad stop
See all legal cases 
Publication nameTitleDate
Underdog BlogVarious daily articles2015
Maryland Criminal Defense Attorneys Association NewsletterPersuading Through Storytelling2008
Maryland Crim. Def. Atty. Assoc. NewsletterImmigration Law and Criminal Court: Fertile ground for fatal collisions.2007
School nameMajorDegreeGraduated
Gerry Spence's Trial Lawyers CollegeTrial LawFour-week intensive program.1995
Trial Practice Institute ("Macon") - National Criminal Defense CollegeCriminal LawIntensive two-week program1994
George Washington University National Law CenterLawJD - Juris Doctor1989
Tufts UniversityPolitical ScienceBA - Bachelor of Arts1985
Speaking engagements
Conference nameTitleDate
NoVa NORML meetingWeed & You- Your Liberty in the Balance2016
Voice of America televisionVoice of America interview about the FIFA prosecution.2015
George Washington U. Human Sexuality graduate school classTalk at GWU Human Sexuality class2015
Fox 45 BaltimoreInterviewed on criminalizing upskirting videos2015
RT TelevisionRT television interview on searching cellphones.2014
Justice With Judge Jeanine ShowFox News2013
GW Human Sexuality classSex crime defense and psychology.2013
Speaking on the benefit of mindfulness for criminal defense practiceFinding True Refuge2012
NBC Nightly NewsNBC Interview on overkill suspension of public school student for her writing on the Newtown massacre.2012
Know Your RightsKnow Your Rights With the Police2010
Criminal Suspects' RightsAsserting your rights with the police.2007
Your rights and 420Standing up the police searching for marijuana.2006
Successful Strategies for Circuit Court Criminal CasesTrial techniques2006
National Lawyers Guild- Student OrientationKeeping your values while in law school.2004
National Lawyers Guild Mid-Atlantic MeetingAnimal Rights2003
Burton Wechsler National First Amendment Moot Court CompetitionMoot Court Judge2002
East Coast Video ShowEverything You Wanted To Know About The First Amendment ... But Were Afraid To Ask2001
Annual MeetingFirst Amendment Rights with Adult Entertainment2001
Annual MeetingFirst Amendment Rights2001
National Academies panel on children's online access to erotic material.Federal obscenity laws.2000
Legally SpeakingWeekly legal radio call-in show1999
Moot Court - George Washington University Law SchoolMoot Court Judge1998
Moot Court- University of Maryland Law SchoolMoot Court Judge1996
NoVa NORMLMarijuana reform and criminal defenseN/A
News interviews.Interviews on criminal and Constitutional defense.N/A
GW Human Sexuality ClassSex crime defense and human sexuality.N/A
Fox 45 BaltimoreInterviewed on criminalizing upskirting videosN/A