In case your income is more than 125% of the federal poverty guidelines for your family size, there is no need to add any extra family members' income. But other family members such as parents, siblings, spouse, adult children or other dependent with the same place of residence as you can contribute in case it is needed.
In case additional family members make their contribution to the family income, there is a need for you to submit the following for each person:
- Form I-864A, Contract Between Family Member and Sponsor
- Indication of residence
- Indication of family member’s relationship to you http://www.manufacturingmirror.com/newsr/8724