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About me

Mr. Hartnett is a business lawyer concentrating on construction, corporate, partnership, limited liability company and real estate matters. He has written and lectured extensively on California construction law, mechanic's liens, stop notices, bond actions and false claims. He has litigated cases throughout California in State and Federal courts. His firm was founded on the principle of using the latest in technology to bring the best legal care to businesses and business owners.


Practice areas


  1. Lawsuits & Disputes: 75%
    30 years, 5 thousand cases
  2. Contracts: 25%
    30 years, 1 thousand cases



Hourly ($200-350/hour), contingent (25-50%), Fixed (sometimes)

Payment types:


Attorney endorsements

1 total 

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  • Joshua David Ramirez

    I highly endorse Patrick for any litigation case. Our firm hired Pat to help us with a trust litigation dispute. He helped the client with compassion and succeeded in the case. Not a week goes by where I do not mention Pat and send clients to him for his expertise.


    Joshua Ramirez Elder Law Attorney
    Relationship: Fellow lawyer in community

Contact info

350 E Commonwealth Ave
Fullerton, CA, 92832-2017


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
School nameMajorDegreeGraduated
Santa Clara University School of LawN/AN/AN/A
Santa Clara UniversityN/AN/AN/A