Andrew M. Katzenstein practiced law from 1982 - 2025.  He started his legal career at Loeb & Loeb and was a partner at Bryan Cave, Manatt Phelps Phillips, Katten Muchin, and Proskauer Rose.  He worked on matters that involved estate, gift, and generation-skipping tax planning, income tax of trust planning, charitable tax and administrative matters, probate and post-death administration of living trust matters, and fiduciary litigation. 

Andy graduated from the University of Michigan in 1979 with high honors, and received his J.D. from the University of Michigan Law School in 1982 with distinction. In 1990, Andy received his LL.M in Taxation from the University of San Diego School of Law. Andy currently teaches Estate and Gift Tax at USC Law School and in the LLM program at the UC Irvine School law.  Previously, he taught Estate and Gift Tax  for 18 years at UCLA School of Law. He has also taught at the University of San Diego and Golden Gate University LL.M programs. Andy is a member of the California Bar and the American College of Trust and Estate Counsel. 

Andy retired from the practice of law in 2025, but is still available to assist families and their advisors through The Estate Whisperer, LLC.  Through that entity, Andy is available to apply his 43 years of knowledge and experience in order to provide outside-the-box solutions to difficult issues that others may not be able find a way to resolve.