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About me

Tim has been practicing civil litigation since 1987 throughout Northern California and the Central Valley. He is experienced in complex civil litigation and has litigated cases in the areas of business and commercial law, commercial lease disputes, business torts, unlawful competition, legal malpractice, personal injury, real estate, trust and probate litigation and fiduciary abuse. He has handled a variety of jury and bench trials in both state and federal courts, and his experience extends to appellate and writ proceedings in both federal and state courts of appeal. He is admitted to practice before the United States District Courts for the Northern, Eastern and Southern Districts of California, and before the United States Court of Appeals, Ninth Circuit.

In addition to practicing law, Tim currently serves as an adjunct professor teaching a number of law courses for the Paralegal Program at Humphreys College, in Stockton. He is an inactive member of the Judge Consuelo M. Callahan Inn of Court and of Toastmaster’s International. From 2002 through 2004, he served on the San Joaquin County Youth Accountability Board, a diversionary program for one-time non-violent youthful offenders.


Practice areas


  1. Litigation: 50%
    27 years
  2. Estate Planning: 25%
  3. Commercial Real Estate: 10%
    27 years
  4. Business: 10%
    27 years
  5. Personal Injury: 5%



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Contact info

Timothy J. Kooy

983 Reserve Drive
Roseville, CA, 95678


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
BV RatedMartindale-Hubbell2015
Work experience
TitleCompany nameDuration
AttorneySterling Counsel2015 - Present
Of CounselCostanzo Law Firm2014 - 2015
OwnerTimothy J. Kooy Attorney at Law2012 - 2014
AttorneyGeiger, Coon & Keen2003 - 2012
AttorneySalter Law Firm1992 - 2003
AttorneyLaw Offices of Judd Scott1992 - 1992
AttorneyDoan and Vu1988 - 1992
AttorneyLaw Office of Ray Bourhis1987 - 1988
Association namePosition nameDuration
American Inns of CourtMember1992 - Present
State Bar of CaliforniaMember1987 - Present
School nameMajorDegreeGraduated
University of California - BerkeleyN/ABA - Bachelor of Arts1992
Golden Gate University School of LawLawJD - Juris Doctor1985