Theo đường link bạn gởi, hướng dẫn là mỗi người 1 form I-130, tôi thấy trên trang USCIS - form I-130 có hướng dẫn như sau:
5. If you are the lawful permanent resident petitioner and the beneficiary qualifies under Items 2.A., 2.B., or 2.C. above, you are not required to file separate petitions for the beneficiary’s unmarried children under 21 years of age. They are considered derivative beneficiaries and you should list them in Part 4. of this petition.
Và trong mục special instructions của form I-130 có ghi:
You must file a separate Form I-130 for each eligible relative, unless he or she can be considered a derivative beneficiary. See the form instructions for more information.
Tôi không biết phải làm sao!