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 I-864, also known as the affidavit of support, is a "4-Part" form in the Green Card Process, whether Adjustment of Status or Consular Processing.The Affidavit of Support (USCIS form I-864) is your validation that you have enough income to provide support for the person you are sponsoring in Greensboro. Affidavit of Support: This is a statement of a sponsor's income, resources, and willingness to support an alien. This form may be used to obtain a K-3 visa for your alien spouse. Fill out the form as directed, except assume that. HI all a few questions on the form please: 1. This affidavit is to show that you have the financial ability to support your alien fiancé(e) after they become a lawful permanent resident. Aliens whose sponsor did not sign the I-864 Affidavit; and. J. Aliens whose sponsor signed one of the following forms. 1.