Contact the Registrar-Recorder's office where the property is located for fees and filing addresses. In Los Angeles County call (800) 201-8999, option 2.To claim the exemption, the homeowner must make a one-time filing with the county assessor where the property is located. Complete a homestead declaration form. In order to qualify, you must be a property owner, co-owner or a purchaser named in a contract of sale. You may only claim one T1 (Owner Occupied) Exemption unless multiple owners are listed on the title. •.