Please read the following instructions carefully before completing and submitting the Statement of. Financial Support to Wayne State University.How does one file Form 990-N? Close submenu ( Building Authority) Building Authority. You have been appointed and qualified as personal representative of the estate on . AUTHORITY LETTER. 1. INTRODUCTION. 2. Background. 2. Objective. 2. Scope and Methodology. 2. When the estate is ready for closing, you are also required to file a final account with a description of property remaining in the estate. An Authorization Letter allows you as an account holder to grant another trusted individual to perform banking transactions on your behalf. Close submenu ( Building Authority) Building Authority.