This is a situation where a consultation with an attorney is appropriate. It is not clear why his green card was taken away in the first place. Does he have a criminal record? Was he accused of fraud? Did he remain outside the United States too long? Without this information it is difficult to provide an assessment. In the interim, you can read more about family-based immigration at http://myattorneyusa.com/family-immigration.
Answered on Mar 29th, 2016 at 3:39 PM