Your husband cannot apply for legal status through your marriage because of the status in which he entered the U.S. He only can apply for an immigrant visa at a U.S. Consulate once the Immigration Service approved a visa petition that you filed for him. However, his leaving the U.S. will bar him from being granted an immigrant visa for 10 years unless he qualifies for a waiver of the bar. For the waiver he must demonstrate hardship to you if you are not allowed to live with him in the U.S. Your disability will be considered in the context of the waiver application and may give him a good case to have the bar waived.
Answered on Jul 26th, 2011 at 6:38 AM