Yes, a U.S. citizen can file a petition for her/his alien parent. If the parent: 1) entered the U.S. with a visa; 2) did not leave the U.S.; 3) was never in deportation proceedings; and 4) does not have a criminal record, or history of participation in terrorist organizations, genocide, or prosecution of other people for their race, religion, or political positions; - then the overstaying a visa should not prevent the parent from getting a green card. If any one of these conditions is not satisfied, the case has to be reviewed by an immigration attorney.
Answered on Jun 23rd, 2016 at 4:52 AM