The property must be located in Riverside County. Instructions for completing the Third Party Letter of Authorization (LOA).Need help downloading or filling forms? Why do I still have an authorization on my card if my payment failed? Ensure that you specify the item or document being claimed. Email Address for record delivery. Continuity of Care - Authorization Letter. For Undergraduate students. The landlord does not fill out this form. Below you will find links to useful forms and documents for easy and convenient access.