If you are still below 21 years, I am afraid, you cannot file petition for your mother at this time. Under immigration law, a US citizen such as your self can file petitions to bring their parents into the US as green card holders. But until you turn 21 years, you cannot do so. If you have older US born siblings who are also your mother's children, then, such person can file the petition for her. Absent that, you have to wait until your 21st birthday to file for your mother.
Answered on Jul 25th, 2013 at 1:47 AM