You can file for fianc visa for him, and once he is in the US, you need to get married within 90 days of his entry. You need to file for green card application after you get married.
You can also marry him in Dominican republic first and then file for green card for him.
If you need attorneys assistance for your familys immigration needs, please send us a separate email. Best regards.
Answered on Jan 17th, 2011 at 1:58 PM