You must fill out this form after you have served the documents on all interested persons. You will need to file the original with the Clerk of Court and provide a copy to the.Probate Registrar before receiving any permanent letters of appointment. There will be a charge per letter, but not for the amount of time devoted to letter preparation. You will need to file the original with the Clerk of Court and provide a copy to the Probate. Registrar before receiving any permanent letters of appointment. Many of the forms need to be downloaded before you can make edits. In the formal offer letter, provide comprehensive details about the position, compensation, benefits, and other pertinent terms. Original Will: If the decedent had a will. Staff help me fill out my form?