Things that you may include in the letter of instruction vary greatly. Quickly learn what a Letter of Instruction is and how to write one (2024 updated).Plus, grab the free template so you can take action! This set provides coverage of every aspect of probate law and estate and trust administration in Texas. It includes sample forms and letters. A letter of instruction is a document that guides a designated individual or entity on how to carry out specific actions or wishes after the author's demise. Bank of America provides notary services free of charge in all financial centers. Schedule an appointment and learn what is needed for a notarization. A letter of last instructions is an informal document that can help with the funeral planning process. INSTRUCTIONS FOR FILING A COMPLAINT WITH THE Dallas.