After 15 years of technical work in the computer industry, he went back to school for retraining, and received his California CPA license in 2005. He has worked at several small accounting and audit firms, has participated in audits of private and public companies, associations, government entities, and has been a public-company controller. He currently has his own tax and consulting practice in San Francisco. His specialties include tax problem resolution, real estate matters, start-ups, and stock compensation.