As you prepare your tax documents for filing, please review the following information pertaining to IRS Form 1098 (Mortgage Interest Statement). Obtain forms from either the County Assessor or the Clerk of the Board in the county where the property is located).Contact Us: City Hall Address: 2263 Santa Clara Avenue Alameda, CA 94501 (510) 747-7400 This document is a Preliminary Change of Ownership Report form from the County of Alameda Assessor's Office in California. The Alameda County PCOR form can be downloaded HERE. Our partners administer services programs, repair parks and sidewalks, and build and preserve affordable housing. This form is a required step in the loan application process per TRID. Employees at hospitals, clinics and CBOs to help individuals fill-out an application.