This is straight from the instructions
Can the Intending Immigrant Help Me Meet the Income Requirements?
If certain conditions are met, an intending immigrant’s income can help you meet the income requirement. If the intending immigrant is your spouse, his or her income can be included if it will continue from the same source after he or she obtains lawful permanent resident status.
If the intending immigrant is another relative, there are two requirements:
1. The income must be continuing from the same source after he or she obtains lawful permanent resident status; and
2. The intending immigrant must currently live with you in your residence.
Evidence must be provided to support both requirements, however, an intending immigrant whose income is being used to meet the income requirement does not need to complete Form I-864A, Contract Between Sponsor and Household Member, unless the intending immigrant has a spouse and/or children immigrating with him or her. In this instance, the contract relates to support for the spouse and/or children.
Can the Intending Immigrant Help Me Meet the Income Requirements?
If certain conditions are met, an intending immigrant’s income can help you meet the income requirement. If the intending immigrant is your spouse, his or her income can be included if it will continue from the same source after he or she obtains lawful permanent resident status.
If the intending immigrant is another relative, there are two requirements:
1. The income must be continuing from the same source after he or she obtains lawful permanent resident status; and
2. The intending immigrant must currently live with you in your residence.
Evidence must be provided to support both requirements, however, an intending immigrant whose income is being used to meet the income requirement does not need to complete Form I-864A, Contract Between Sponsor and Household Member, unless the intending immigrant has a spouse and/or children immigrating with him or her. In this instance, the contract relates to support for the spouse and/or children.
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