How do I file a declared homestead? Complete a homestead declaration form.A Declaration of Homestead, when not properly prepared, may be invalid. We recommend that you seek legal advice before considering the recording. To claim the exemption, the homeowner must make a one-time filing with the county assessor where the property is located. A Declaration of Homestead must be completed, signed, and notarized, in order to be recorded in the Clerk-Recorder's Office. The Homestead Law is technical in nature and complex in its application. A Declaration of Homestead, which is not properly prepared, may be invalid. A homestead declaration is a legal document that claims and registers a particular house as the owner's homestead or. The Homestead Declaration must be recorded with the County Recorder to be valid.