You may file a visa petition for him, but he cannot apply for adjustment of status to get a "green card" if he entered without inspection, unless a qualifying relative filed a petition for him prior to April 2001. If your visa petition is approved, and your husband cannot apply for adjustment of status, he will need to apply for an immigrant visa in his home country. Because he may be subject to re-entry bars for being in the US without permission, he needs to speak with an immigration attorney.
Answered on Oct 19th, 2011 at 6:42 PM