Sign it and date it. There's no special format so long as who you are and the purpose of the letter is clear.Administration is the process where the Surrogate's Court officially gives out Letters of Administration to a qualified distributee (heir) of the Decedent. This free program will help you create the affidavit that you will need to file in Surrogate's Court. How do i write a letter for next of kin (father) who is willing to give up his rights to heir in son inheirtance? Edit, sign, and share next of kin letter online. No need to install software, just go to DocHub, and sign up instantly and for free. Welcome to the Suffolk County Clerk's Office. At one time or another either directly or indirectly, every resident of Suffolk County deals with our office. Who can give us this information?