John A. Mangini



Litigation Consulting Services, Family Law
Business Valuations
Forensic Accounting


University of California, Berkeley, Bachelor of Science Degree, School of Business Administration, Emphasis in Accounting, 1974
Certified Public Accountant, 1977
Certified Valuation Analyst, 2009
Certified in Financial Forensics, 2009


California Society of Certified Public Accountants
American Institute of Certified Pulbice Accountants
NACVA (National Association of Certified Valuation Analysts)


John’s practice includes family law consulting, litigation support, business valuations and forensic accounting for individuals, families, trusts, and closely-held business owners. John has qualified as an expert witness in the following counties: Alameda, Contra Costa, San Francisco, Santa Clara, San Mateo, Marin and Napa. He also is a frequent speaker at professional and industry organizations such as the Contra Costa County Bar Association; Marin County Family Law Center; San Francisco Bar Association; and the American Academy of Matrimonial Lawyers. John is a board member and treasurer of The First Tee East Bay.