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About Our Firm

Welcome to Cowan Kirk.  Washington's Premier DUI and BUI Defense Firm.  As the managing partner, I am proud to say that our dedication to your case dates all the way back to our inception in 1969.  While the law and science surrounding DUI Defense has changed, our commitment to providing you with the highest caliber legal defense possible has never waivered.  DUI is a unique crime, that can be committed by anyone.  No one ever sets out with the intent to get behind the wheel of their car or boat while impaired by alcohol or drugs.  But we understand that bad things can happen to good people and we are here to help.

At Cowan Kirk, we will take a "team" approach to your case.  Each lawyer will weigh in on your best defense and the strategy necessary to bring about a favorable resolution to your case.  We know that a DUI arrest can have a devastating impact on your life, profession and family.  Whether its a suspension of your drivers license by the State, mandatory jail time, costly fines, lengthy probation, mandatory ignition interlock, high risk insurance or exclusion from Canada, we understand what's at stake, and have understood the importance of this for over 40 years now.  The only way to avoid a DUI is to not drink and drive, but if you have found yourself accused of DUI or BUI, we are here to help, with the tenacity needed, the ethics required and the compassion for our clients that sets Cowan Kirk apart from all other firms.

William K. Kirk,

Managing Partner

Our Office Location


Cowan Kirk Kattenhorn

Cowan Kirk is known throughout Washington and the nation for representing all of its clients with commitment, creativity and compassion. We recognize how devastating a DUI charge can be, particularly when our clients learn how incredibly tough Washington's DUI laws have become, even for a first-time offender.

Contact Us

If you need a DUI defense attorney in Seattle, Bellevue, or King County, contact us today to find out why respect for our clients, a passion for justice, and our commitment to winning have earned each of us the highest honor a member of the bar can receive from our colleagues – their referrals.