I found this about them coming into USA while waiting for I-130. So this does not apply ?
Can my child come to the United States to live while the visa petition is pending?
If you are a U.S. citizen, once you file Form I-130, your child is eligible to apply for a nonimmigrant K-4 visa. This will entitle him or her to come to the United States to live and work or go to school while the visa petition is pending. To petition for this benefit, you may file Form I-129F. However, you are not required to file Form I-129F and your child does not require a K-4 visa. Your child may wait abroad for immigrant visa processing. Seeking a K-4 visa can be a method for him or her to come to the United States more quickly. For more information, see the “K3-K4 Visa” page.
If you are a lawful permanent resident (Green Card holder) and you have filed Form I-130 for your child on or before December 21, 2000, your child may be eligible for the V visa classification if more than three years have passed since the I-130 was filed. For more information on V visas, see the V Nonimmigrant Visas page.
For more information, visit the Adjustment of Status within the United States page and Consular Processing overseas page.