Skip to main content

About me

For the past twenty yesars, I have handled over thousand felonies and have tried hundreds of felonies and misdemeanors, specializing in third-strike candidates, violent offenses, and aggravated homicides. 

I have also taught attorneys throughout the United States the art of Voire Dire, Opening Statement, Closing Argunment, Trial Advocacy, Cross Examination, and  Homicides.

Having been on both sides of the courtroom, I know how to expose the weaknesses in the government's case, and I know how to deal with lay and expert witnesses to test their reliability and trustworthiness.  With this knowlege, I will fight aggressively at every stage of the proceedings in order to protect your rights.

I know how devastating it can be when charged with a criminal offense, no matter how small the charge.  I understand the impact a criminal conviction has on a person's ability to provide for his family and how it can destroy reputation, friendships, and standing in the community.





Languages spoken: Korean, English

Practice areas


  1. Federal Crime: 10%
    6 years



Fixed (sometimes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

1 total 

Are you an attorney? Endorse this lawyer

  • Daniel Joseph Gerl

    Sunni Ko is an outstanding attorney. As a prosecutor she served as a strong model for other prosecuting attorneys, including myself, to follow. Now representing those accused of serious violent crimes, her clients are in great hands and the prosecution is in for a battle. I would recommend anyone charged with such an offense to Ms. Ko without hesitation.


    Daniel Gerl DUI & DWI Attorney
    Relationship: Fellow lawyer in community

Contact info

The Law Office of Sunni Ko

1105 Tacoma Avenue South
Tacoma, WA, 98402-2102


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Work experience
TitleCompany nameDuration
Assistant U.S. AttorneyUnited States Attorney's Office, Criminal Division2010 - 2011
Faculty memberNational District Attorneys Association2004 - 2010
Supervising Deputy Prosecuting AttorneyPierce County Prosecuting Attorney's Office, Tacoma, Washington1992 - 2010
Public DefenderSnohomish County Public Defender (Everett)1990 - 1992
Association namePosition nameDuration
Women's Intergenerational Living Legacy OrganizationBoard Member2015 - Present
Asian Pacific Cultural CenterBoard Member2014 - Present
Korean Women's AssociationBoard Member2014 - Present
Asian American Bar AssociationN/A2011 - Present
Washington State Association for JusticeN/A2011 - Present
Washington Defender AssociationN/A2011 - Present
Washington Women Lawyers (Pierce County chapter)N/A2011 - Present
Korean American AssociationN/A2011 - Present
Pierce County Minority Bar AssociationN/A2011 - Present
Multicultural Self-Sufficiency MovementVolunteer Attorney2010 - Present
Korean Bar AssociationAdvisory Board2002 - Present
Washington State Bar AssociationN/A1991 - Present
Legal cases
Case nameOutcome
State v. Mustin, 12-1-00290-0All felony charges dismissed. Guilty Assault in the Fourth Degree
State v. Long, 11-1-04367-5Dismissed
State v. Vance, 12-1-00435-0Dismissed
See all legal cases 
Publication nameTitleDate
9th Circuit, No. 11-30030, D.C. No. 2:10-cr-00264-MJP-1United States v. Keith Russell2012
School nameMajorDegreeGraduated
University of Utah S.J. Quinney College of LawN/AJ.D.1990
University of UtahBiology & PsychologyB.A. & B.S.1987
Speaking engagements
Conference nameTitleDate
WAPA Summer ConferenceVoire Dire2010
National District Attorney's AssociationVoire Dire, Cross Examination, Trial Advocacy2010
Houston ConferenceEffective Cross Examination2009
Children's Justice ConferenceProfile of a Child Homicide Case2009
Prosecuting HomicidesHomicides by Abuse2008
Prosecuting HomicidesDomestic Violence Homicides2008
Elder Abuse ConferenceProfile of Elder Abuse Case2008
WAPA Winter ConferenceProsecuting Sexual Assaults2005
WAPA Summer ConferenceVoire Dire2001