For legal validity in California, the living trust document needs to be signed from the grantor(s). Notarization is very advised and often important for practical functions, as lots of financial institutions and county recorders involve notarized documents for subsequent asset transfers, particularly for real estate. California Probate Code Section 15000 https://cheaprevocablelivingtrust56667.techionblog.com/38455202/affordable-living-trust-lawyer-alternative-california-no-further-a-mystery