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John Patrick Keirnan

Practice areas:

Criminal Defense

Client reviews

Not yet reviewed

Practice Areas

Licensed since 1981

  1. Criminal Defense: 100%

Attorney Endorsements

1 total 

  • Phillip Lawson Baker

    Casey Keirnan taught me everything I know about trying a case. He was first my mentor and later my law partner for many years. During that time we handled thousands of cases and we were constantly in trial. Casey is the most persuasive speaker I have ever heard in trial. More importantly Casey is a great dad and raised two beautiful and intelligent daughters. One of whom know works with his firm as an investigator! How lucky for him and his clients. I endorse this great Houston trial lawyer.


    Phillip Baker DUI & DWI Attorney
    Relationship: Co-worker

Contact Info

917 Franklin St Ste 550
Houston, TX, 77002-1728



TXEligible To Practice In Texas 198108/25/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.

Avvo Contributions

Legal Answers


School NameMajorDegreeGraduated
South Texas College of LawDoctor of Jurisprudence/Juris Doctor (J.D.)N/A1981