Please provide the name of the corporation and any trade name under which it will do business in. Ohio. Location. The letter of instruction is intended only to provide supplemental information to be helpful or informative to your executor or personal representative.The first order of business in a letter of instruction is to outline the details that will help family, friends, and surviving spouses through the trying hours. The establishment of a state-chartered bank in Ohio requires the approval of the Superintendent of. A letter of instruction is a cheat sheet for anyone involved in settling your affairs. Unlike a will, this letter has no legal authority. A bank letter is an official document from your bank that provides important information about your business' official bank account. You may also check out our application letters in Google Docs. Gov(opens in a new window). When one party dies, the survivor owns all remaining assets in the account.