If no one had ever filed a petition on her behalf, because she entered without an inspection, under the current laws she is not eligible to adjust status to permanent resident, even if you are a US citizen and over the age of 21. She would have to consular process in her home country but as soon as she leaves the US, she will trigger an automatic 10 year bar to reentry, which can only be waived by a showing of extreme hardship to a US citizen.
Answered on Sep 19th, 2012 at 3:49 PM