The U. S. citizens are eligible to sponsor their married children for green cards. Their spouses and unmarried children, under the age of 21, may also immigrate with them. If their children turn 21 during the petitioning process, they can subtract the time that the visa petition was pending from their ages at the time that their priority date becomes current under the Child Status Protection Act.
This can be a lengthy process because Congress has put a limit on the number of persons that can immigrate under this category annually.
To learn more about your options contact our San Francisco law firm to speak with one of our immigration attorneys.