Jonathan has been a member of CNSV for over 20 years. He practiced law from 1986, until he retired, June 13, 2025

He is the author of two books on the subjects of contracts and avoiding litigation, and he has taught law courses at Lincoln Law School of San Jose, San Jose State University (SJSU) and the University of San Francisco (USF).

He served on the Board of Directors of the Peninsula Builders Exchange in San Carlos, CA, since 2002, and was President of that non-profit organization. He received his BA from UC Berkeley in 1978 and his JD from USF in 1985.