I'm going to be walking through the steps of what an off-date financial information is and how to properly fill out this form. Unless exempt, carefully complete the Affidavit, sign, notarize and submit it to the County Recorder.The affidavit should include the child's name, date of birth, current address, and name, telephone, and address of parent or legal guardian. First, you obtain a blank affidavit. The expert's name, or other means of identification, last known complete address and telephone number;. 2. The affidavit must be signed in the presence of a notary. I'm in Maricopa County AZ. When is the preliminary expert opinion affidavit due in a civil case? I didn't file it with.