The letter of last instruction is a letter detailing certain instructions not found in other estate planning documents. As you can see, the bank letter example above has all of the required components (date, name of bank, account name, account number, routing number).Expiration Date: Letter of Credit Number:. Providing Information on Financial Assets: It is important to include details about your financial assets in the letter of instructions. This is known as exercising your 'first right of appropriation'. You can choose to send a letter in your own name or in joint names. In general, in a manager-managed LLC that has no operating agreement, each manager. If you have questions about setting up or managing your trust account call the Trust Account Hotline at 602.340.