i 751 affidavit of support samplei 751 affidavit letter sampleform i 751 affidavit samplei 751 form affidavit letter samplei 751 sample letter from friendsaffidavit i 751 notarizedform i 751 affidavit templateonline form sample1040 sample form filled outsample estimate formsample of registration formsample reimbursement forms