Property Document Forms AB1466 - Restrictive Covenant Modification Policy and Cover Page Assessor Department - Preliminary Change of Ownership Report Form. If you receive a Change of Ownership Statement (COS) in the mail, you must complete and return it to the Assessor Department within 90 days to avoid penalties.Access to Forms The Superior Court of Orange County offers several options to assist the public in completing court forms. Forms to Complete Online and Print. The Assessor Department's most requested forms are provided below. Print the form, fill it out, keep a copy for your records, and send it in. Contact the insurance provider to request a change in beneficiary designation. Complete the necessary forms to facilitate the change. If you decide to set up a Living Trust, the lawyer will write the trust document and review it with you. Fill in the blank form formatted to comply with all recording and content requirements.