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John Tondini (AV rated by Martindale) has practiced law in Seattle since 1989.  His federal and state court trial practice includes representing plaintiffs and defendants in complex litigation matters.  Additionally, he counsels clients on joint ventures, trade practices, antitrust and consumer issues.  In 2001 and 2012 he chaired the WSBA Antitrust, Consumer Protection and Unfair Business Practices Section.  He has represented clients in securities and consumer class actions; professional liability suits; mass tort litigation; and trade secret and patent cases; among other matters.  Before joining Byrnes Keller Cromwell LLP in 1999, he was a partner at Bogle & Gates PLLC.



Practice areas


  1. Lawsuits & Disputes: 55%
  2. Ethics & Professional Responsibility: 20%
  3. Intellectual Property: 15%
  4. Trade practices: 10%

Attorney endorsements

2 total 

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  • Christian K. Lassen II

    Top-notch attorney. Highly respected in the legal community.


    Christian Lassen Personal Injury Attorney
    Relationship: Fellow lawyer in community

  • Christina L Haring-Larson

    John is a smart litigator who has a great gut sense of what makes or breaks a case. His ability to focus on what is important in high stakes litigation makes his one of the best seasoned attorneys I have worked with. He is always well-prepared and is a very effective advocate on behalf of his clients.


    Christina Haring-Larson Lawsuits & Disputes Attorney
    Relationship: Worked together on matter

Contact info

Byrnes Keller Cromwell, LLP

1000 Second Avenue
Seattle, WA, 98104


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Super LawyerSuper Lawyers2015
Super LawyerSuperLawyers2014
Top Lawyers-Antitrust & Trade RegulationSeattle Metropolitan Magazine2010
AV ratingMartindale-HubbellN/A
Association namePosition nameDuration
Washington State Bar Association, Antitrust, Consumer Protection and Unfair Business SectionChair2011 - 2012
WSBA Antitrust and CPA SectionExecutive Committee2008 - Present
WSBA Antitrust and CPA SectionChairman2001 - 2002
Legal cases
Case nameOutcome
Shah v. Merrill LynchDirected verdict for client
Shah v. Manufacturer's LifeJury verdict for client
Activated Matrix Partners v. Confidential Law FirmDirected verdict for client with recovery of fees.
See all legal cases 
Publication nameTitleDate
Washington State Bar Association Antitrust and Consumer ProtectionRule 68 offer of judgment2014
Washington State Bar AssociationCPA Claims Against Professionals:2013
School nameMajorDegreeGraduated
California Western School of LawLawJD - Juris Doctor1989
Gonzaga UniversityN/ABA - Bachelor of Arts1984
Speaking engagements
Conference nameTitleDate
Trade Secret Law and StrategiesEthical Issues Re Trade Secret Cases2015
Effective Case Presentations at TrialGetting the Best out of Witness Examinations2015
LSI, Class Actions and Other Aggregate LitigationEthics: The Tensions Between the Code of Professional Responsibility and an Attorney's Objectives in Interviewing Witnesses2013
29th Annual Antitrust, Consumer Protection & Unfair Business Practices SeminarEthics of Witness Interviews2012
27th Annual Antitrust and CPA SeminarRecent Developments at the US Supreme Court and Federal agencies2010
26th Annual Antiitrust and CPA SeminarProcedural Developments and Strategies for CPA Claims2009