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 sponsoring the following family members immigrating at the same time or within six months of the principal immigrant named in Part 3.An Affidavit of Support is US Immigration Form I-864. This form acts as proof that you are financially capable of managing your stay in the United States. Texas State requires that this form be completed and submitted prior to issuing a form 1-20 or Form DS-2019. Completion of this form does not imply acceptance. 1 students may not work offcampus in the U.S. without first obtaining official authorization. Part 2: Verification of Financial Sponsor. Assistantship Affidavit for F-1 Students, This form can be used to show funding for I-20 issuance. Students on F or J visas must complete and submit the International Student Sponsor Statement and Bank Certification form via the iNorthTX online portal.