This form is required to show that an intending immigrant has adequate means of financial support and is not likely to become a public charge. Completing and signing Form I-864 makes you the sponsor.The Affidavit of Support form(s) you submit must promise to fund your entire length of study at Ohio State (at least four years; see costs below). You need a provincial attestation letter (PAL) or territorial attestation letter (TAL) to apply for a study permit. 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. This form acts as proof that you are financially capable of managing your stay in the United States. Sample of Affidavits: AFFIDAVIT REGARDING SPONSORSHIP DECLARTIION 1. I wrote that I have attached an affidavit of support in my SOP for Canadian study permit application but I submitted a sponsor letter instead. Learn all about writing an affidavit in support of student visa for your education abroad, with two sample letters for reference.