A person making a third party claim must file the claim with the levying officer, together with two copies of the claim, after levy on the property but before the levying officer has either sold the property, delivered possession of the property to the creditor, or paid proceeds of collection to the creditor. (CCP 720.120, 720.220)
The third party claim shall be executed under oath and have attached thereto a copy of any writing, including any security agreement or financing statement, upon which the claim is based. At a hearing on the third party claim, the court may exclude from evidence any writing of which a copy was not attached to the third party claim.