Requests filled out for the drop box are generally received and begin the process for authentication within one business day. Mailing and Physical Address:.Inmates may not receive packages except when authorized for medical reasons. Letters should be addressed as follows: Inmate name and offender number. This is a general description of powers of attorney under Utah law. It is not meant to answer all possible questions concerning powers of attorney. Informal probate is the process for asking the court to appoint a personal representative for a decedent's estate without a hearing. How to fill out the Authorization Letter to Collect Documents? Check how to write an authorization letter to collect documents. This document contains an authority form for an individual to authorize another person to claim a lost article on their behalf.