Calladine, Guy D.

Guy D. Calladine
Phone: 415-391-8140
Fax: 415-391-3898
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Guy D. Calladine is a founding partner of Carlson, Calladine & Peterson LLP and an uncompromising trial attorney with over 38 years of experience. Mr. Calladine specializes in both defense and prosecution of legal malpractice and fiduciary breach claims arising from virtually every facet of the practice of law, including intellectual property, estate and trusts, real property, family law, personal injury and commercial transactions, attorney client fee actions, partnership disputes and disqualification proceedings. Mr. Calladine’s practice also includes complex commercial litigation and catastrophic injury defense.Mr. Calladine counsels law firms on ethics issues, and is a frequent lecturer and continuing legal education provider, allowing others to benefit from his expertise in handling legal malpractice actions.

Mr. Calladine has been approved as a Certified Specialist in Legal Malpractice Law by the State Bar of California. He has been a Northern California Super Lawyer since 2004 and is AV rated by Martindale Hubbell. Mr. Calladine is a member of the State Bar of California and the Bar Association of San Francisco.

Areas of Practice

  • Intellectual Property
  • Legal Malpractice
  • Catastrophic Injury Defense


  • University of California at Berkeley, Boalt Hall School of Law, Berkeley, California
    • J.D. – 1981
  • Pennsylvania State University
    • B.A. summa cum laude – 1973

Honors and Awards

  • Northern California Super Lawyer, 2004 – Present
  • AV rated by Martindale Hubbell

Professional Associations and Memberships

  • State Bar of California, Member
  • Bar Association of San Francisco, Member