Our History

Koss Firm APC has more than 30 years of collective experience in civil litigation and related client representation. We offer representation for consultations, pre-litigation claims, and all aspects of litigation including arbitration, trial, and appeals.

Adam is certified by the California State Bar Board of Legal Specialization in Legal Malpractice Law, and focuses on all areas of ethics and professional liability.

Catherine has a dedicated Trusts and Estates Law practice, in which she represents trustees, personal representatives, creditors, beneficiaries, and heirs in contested and uncontested matters related to trusts and decedent’s estates.