You don't need to notarize the I751 affidavit of support, but you should include a sworn statement that the contents are true and accurate. An affidavit is like someone vouching for you.Is a sworn statement that is signed and dated. 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. I am the respondent in the above-captioned removal proceeding. We can provide you with a simple affidavit form that's easy to fill out and doesn't require a notary. The person who writes an affidavit is an affiant. The affiant swears to the affidavit's truth. Powering human achievement through global immigration expertise, people-centered client services and innovative technology. Affidavits from Credible Witnesses.