Understand the Affidavit of Support sample with this comprehensive guide and sample. The affiant should be honest and use anecdotes to demonstrate why they came to the conclusion that the couple has a bona fide marriage.Learn how to create an effective affidavit of support with our detailed guide and sample. If you live with someone and your name is NOT on the property paperwork, you must complete a Shared Residence Affidavit. Affidavit Instructions and Form. 2. Affidavit Instructions and Form. 2. You may contact staff to request a link to complete the form via DocuSign. Download newest version of Alameda County Form • Modify, complete, and send online • Large list of various forms and templates. Local forms adopted for use in Alameda County Superior Court. – Melissa Wilk, Auditor-Controller.