Use our I130 affidavit sample and tips to create a strong affidavit for your spouse. Include these key points and avoid common mistakes.The individual who signs the affidavit of support becomes the sponsor once the intending immigrant becomes a lawful permanent resident. Making an Affidavit Form online is simple. Just answer a few questions, and Rocket Lawyer will build your document for you. Much confusion surrounds the need to submit I751 affidavits and how to write them. We explain and provide an I-751 affidavit sample. For example, if the intending immigrant is also the sponsor's spouse, write. "1" in the "persons you are sponsoring" box but leave the "spouse" box blank. Sponsor's statement: I certify that I am the sponsor of the applicant.