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About me

I am a Seattle native born and raised.  I attended the University of Washington and received a BA in Psychology.  


I have been licensed to practice law for over 10 years and love what I do for a living.  


Languages spoken: Korean

Practice areas


  1. DUI & DWI: 80%
    14 years
  2. Criminal Defense: 20%
    14 years



Free consultation (60 minutes)

Payment types:

Check, Credit card

Attorney endorsements

31 total 

Are you an attorney? Endorse this lawyer

  • Chloe Alyn

    I cannot recommend David enough. He is a highly compassionate attorney with an unparalleled sense of justice. He is highly skilled and intelligent regarding all facets of criminal law. He is well liked by everyone in the courtroom: judges, prosecutors and clerks--all respect him.


    Chloe Alyn Criminal Defense Attorney
    Relationship: Fellow lawyer in community

  • Denis Globa

    I highly endorse Mr. O. He is exceptionally knowledgeable in the area of DUI criminal defense. I have personally observed Mr. O in court advocating on behalf of his clients. He represents his clients zealously and proficiently. I recommend his services with confidence.


    Denis Globa DUI & DWI Attorney
    Relationship: Fellow lawyer in community

Contact info

David O Defense

2211 Elliott Avenue
Suite 200
Seattle, WA, 98121


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Washington 2010 Rising StarWashington Law & Politics Magazine2010
Pro Bono Publico Service CommendationWashington State Bar Association2009
Pro Bono Publico Service CommendationWashington State Bar Association2008
Pro Bono Publico Service CommendationWashington State Bar Association2007
Work experience
TitleCompany nameDuration
Attorney at Law/ PrincipalDavid O Defense, PLLC2008 - Present
Associate AttorneyBradley Johnson Attorneys2004 - 2008
N/ANorthwest Defenders Association2003 - 2004
Association namePosition nameDuration
Citizens for Judicial ExcellenceMember2008 - Present
Joint Asian Judicial Evaluations CommitteeBoard Member for the Bylaws Committee2008 - 2010
King County Pro Bono ClinicCoordinator2007 - 2009
National Association of Criminal Defense LawyersMember2006 - Present
Washington Association of Criminal Defense LawyersMember2004 - Present
Korean American Bar AssociationBoard Member2004 - 2010
Washington Association of Criminal Defense LawyersMember2002 - Present
King County Bar AssociationMember2001 - Present
Legal cases
Case nameOutcome
DUI case dismissedDismissed
See all legal cases 
School nameMajorDegreeGraduated
Oklahoma City University School of LawN/AJD - Juris Doctor2001
University of WashingtonN/APsychology1998