Provide a complete copy of the Trust Agreement and a copy of a document with the trust tax identification number, such as a tax return or a bank statement. OR. This comprehensive guide discusses how to close a revocable trust after death as well as how to close an irrevocable trust after death.Learn how to execute a living trust after death in California with our stepbystep guide, covering essential documents, tax filing, and asset distribution. Call 925-314-2320 or complete an online form to request a consultation with an attorney at Doyle Quane regarding any aspect of estate planning or probate. Trust Administration (Pre- and Post-Death). The Trust serves as a letter of instruction to the successor trustee who takes over after you.