If the petitioner’s income is insufficient, a joint sponsor can be used to assist in meeting the income requirements. The joint sponsor must meet the same eligibility requirements as the petitioner/sponsor and complete form I-864. If the additional sponsor is a member of the petitioner’s household, that person would be classified as a household member and would complete form I-864A.
A substitute sponsor is used when the petitioner passes away before all qualified family members have immigrated. A substitute sponsor must be related to you and be either your spouse, parent, mother-in-law, father-in law, sibling, child (at least 18 years of age), son, daughter, son-in-law, daughter-in-law, sister-in-law, brother-in-law, grandparent, grandchild or the legal guardian.