One thing for sure is that the bank will want to know the specific reasons for the removal request as the next-to-kin. To know the death claim letter format for a bank in detail, check the below format and samples.A death claim letter format for bank is straightforward. Moreover, you just have to submit documents like a death certificate, ID proof, etc. When a decedent, or a person who dies, leaves a will, a proceeding must be completed in the Surrogate's Court to probate or prove the will. The procedure is very simple. Get the death certificate and legal heir certificate. This is to notify the bank that my. (Relationship with deceased). The PDF version of these forms are FILLABLE.