Statements of Information, Common Interest Development Statements and Publicly Traded Disclosure Statements can be filed online at bizfileOnline.sos.ca.gov. To quickly search for a notice or letter on this page, you can press Ctrl-F in most browsers and type in the number or name, then press Enter.A letter of instruction is a cheat sheet for anyone involved in settling your affairs. Unlike a will, this letter has no legal authority. File your documents in the drop box at the courthouse at 720 Ninth Street. The California Secretary of State Business Programs Division hosts a virtual workshop on how to file a Statement of Information. Most banks will accept a bank statement as proof of address, provided it's recent. The general period for relevance is three months. A bank letter is an official document from your bank that provides important information about your business' official bank account. Each attached template has a sample guide with instructions on how to complete it.