Working With Us

Welcome to Sullivan CO CPA

Based in San Mateo, California, Sullivan CO CPA provides specialized litigation support and forensic accounting with a core focus on estate and trust disputes. For attorneys, time and accuracy are critical. That’s why we deliver work that is both thoroughly reasoned and completed on schedule—giving legal teams confidence in the financial side of their cases.

With decades of experience in tax and valuation, our practice is rooted in both technical expertise and professional integrity. We understand that estate and trust litigation requires not just numbers, but context, clarity, and defensible conclusions. Every report is crafted to stand up to scrutiny, whether in mediation, arbitration, or court.

Our background includes advanced credentials and long-standing professional memberships:

  • AICPA (American Institute of CPAs)

  • ABE designation (Accredited in Business Evaluation)

  • Certified Valuation Analyst (CVA)

  • Certified Fraud Examiner (CFE)

  • California Society of CPAs, Life Member of the Forensic Services Section

Beyond technical credentials, our firm reflects a commitment to community and service. From decades of professional practice (Bachelor’s degree in Tax, earned 1981) to ongoing involvement in the San Mateo Rotary and local church leadership, our approach blends sharp expertise with a strong ethical foundation.

Attorneys choose us not just for the numbers, but because they know they’ll receive work that is timely, accurate, and thoughtfully prepared—the kind of support that helps cases resolve with clarity and confidence.

Forensic Services and Valuation Subcommittee


Business Valuation Subcommittee

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