You may marry while she is here but her and her son may not remain in the United States. Your wife and stepson would not be able to adjust their status in the United States if they failed to maintain status. Failure to maintain status is only forgiven for spouses of citizens. Your family would have to live without status until you naturalize. It would be better for them to seek an immigrant visa abroad. You can file immediately after marriage. The process will take about 18 months. You can read more about family immigration at http://myattorneyusa.com/family-immigration.
Answered on May 04th, 2016 at 3:37 AM