Adhere to this straightforward instruction to redact Sample letter to close trust account in PDF format online for free: Sign up and log in. Information on how to add money to an inmate trust account, methods of sending or depositing money to an inmate's account, cashing out your inmate account.Duty to administer trust. Please complete the Account Registration,. Duty to administer trust. Timeframe: A minimum of 30 days must have passed since the deceased's death. No Real Estate: The estate must not include real estate properties. Need to write an attorney closing letter to clients? Important Information Regarding Procedures for Opening a New Account. If you fill out a form on a webpage, you will lose your progress.