Sorry if this has been asked before, but if I submitted two I-130s for my two stepchildren do I need to fill out a separate I-864 for each one, or one is sufficient for both? I ask this because USCIS only asked me to pay the fee for one single I-864 for the both of them, but it is not very clear in the instructions if I need to file two separate ones or just include the second stepchild as a family member following to join within 6 months.
Thanks in advance if anyone knows the answer to this.