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Welcome to Cowan Kirk Kattenhorn – a firm dedicated to the practice of DUI and BUI defense in the greater Seattle area, including King, Snohomish and Pierce Counties. We have been defending impaired driving and boating cases since 1969, and what we've learned during our decades of daily combat in the courtroom is that there is no such thing as a DUI case that can't be won.

Our firm is comprised of a team of experienced Seattle DUI lawyers to defend the rights of people accused of driving under the influence. Call 1-866-822-1230 today and put our 75 years of combined experience to work for you.

Defending Your Case from Start to Finish

At Cowan Kirk Kattenhorn DUI litigation is our passion. We have spent decades refining our strategies for handling these difficult and complex cases on your behalf. Although many lawyers and law firms take on drunk driving cases, we believe that our focus on and experience with DUI law gives us a unique ability to help you:

  • Defend DUI Charges
  • Protect Your Driver's License
  • Get an Occupational Driver's License or Ignition Interlock License
  • Handle Pretrial DUI Litigation
  • Take on the DataMaster and Draeger Breath Test
  • Marijuana DUI

Over the years, our attorneys have become known for tenaciously defending our clients at every turn. The prosecutors know that we never take the easy way out. When you choose Cowan Kirk Kattenhorn, the prosecution will know that you are prepared to challenge every pillar of their case – and that your attorneys will stand by you every step of the way.

When it Comes to DUI Law, We Wrote the Book

In addition to actively practicing DUI litigation in the greater Seattle area, the attorneys of Cowan Kirk Kattenhorn are also proud to contribute to the practice of DUI law nationwide. We literally wrote the book on how to defend DUIs in this state: Defending DUIs in Washington (Lexis/Nexis Publishing), a textbook for other lawyers who defend these complicated cases.  The book is co-authored by Mr. Cowan and Mr. Kirk along with two other contributing authors.

Contact Cowan Kirk Kattenhorn

Each attorney at Cowan Kirk Kattenhorn shares my passion for and dedication to DUI defense law.  Doug CowanBill Kirk,  Chris Kattenhorn and Matt Knauss are all experienced Seattle DUI lawyers who have honed their skills through years in the trenches.

If you need a DUI defense attorney in Seattle, Bellevue, King, Pierce or Snohomish Counties, 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. Call us now to schedule a free one hour consultation.

Give us a call. We can help. 425-822-1220 or 1-866-822-1230

Cowan Kirk Kattenhorn

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Cowan Kirk Kattenhorn 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.


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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.