4. Clearly and legibly print your name at the top of the Affidavit form exactly as it appears on the identification document you have selected. 3. Clearly and legibly print your name at the top of the Affidavit form exactly as it appears on the identification document you have selected.Use this form to show they have adequate means of financial support and are not likely to rely on the US government for financial support. The full form has 11 sections to fill out and complete before you submit it. Much confusion surrounds the need to submit I751 affidavits and how to write them. We explain and provide an I-751 affidavit sample. An I130 affidavit is a written statement from friends, family members, or associates who can attest to the genuine nature of your marriage. Form I-134 Affidavit of Support is an important supporting document for your non-US immigrant visa request. The petitioner in question must fill out Form I-864 Affidavit of Support when petitioning and sponsoring an immigrant. The summary includes: - An affidavit is a sworn letter where the affiant swears to its truth and may have to testify before immigration.