Petitioner: The petitioner must complete an Affidavit of Support Form I-864. The person who signs the Affidavit of Support is also called the "sponsor.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. In this video we're going to show you how to complete an i 864 and affidavit of support that is needed as part of the package for an adjustment of status. Complete the Student's Biographical Information. It will be used during the creation of your Form I-20. The Affidavit of Financial Support will allow you to upload a bank statement and provide signatures for financial support, if needed. Welcome to our comprehensive video guide on Form I-864, the Affidavit of Support! The financial documents and Form I-20 or Form DS-2019 must be presented at the US Embassy or Consulate when applying for either an F1 or J1 visa.