Question: My mother passed away. She does have a will and I was nominated as the executer and trustee.One thing for sure is that the bank will want to know the specific reasons for the removal request as the next-to-kin. This guide can give you a place to start your research when you have a case for probate regarding a deceased person's estate. The depth of your estate plan will hinge on the complexity of your situation, but generally there are 5 estate planning documents that everyone should have. A death certificate and a Small Estate Affidavit should do it, if he was not married and had no children. Create a professional next of kin letter. Build and share in seconds. The next of kin is the closest relative of the deceased. Usually, the next of kin applies for a grant of administration.