The death claim letter should be written in the formal letter format. Check the samples provided below for your reference.This is to notify the bank that my. (Relationship with deceased). Start the letter with your introduction and the reason for writing the letter. In the petition, you'll need to indicate if the decedent nominated someone to serve as their executor (also known as the personal representative). The Notice of Probate is a fundamental legal document, setting the course for the probate process post a person's death. I need to write to several organisations including banks, insurance and mortgager company to inform them of my partners death. This handbook is to assist you in carrying out your fiduciary duties as the Personal Representative (or Executor) of the estate of an Arizona decedent. Documents must be picked up within 24 hours (1 business day) of notification.