Every alien coming to the US is required to have a visa issued overseas. Since his visit is for short duration, he needs a B-2 visa. Unless he has previously visited United States in the past, he must convince the Consular officer that despite his marriage to you, he has and will continue to maintain his domicile in a foreign country to which he will return after your marriage. Due to the presumption that every visitor coming to the US is an intending immigrant, you cannot assume he will be issued a visa. He must prove to the consular officer that he has no intention of taking up permanent residence in United States.
Answered on Jan 14th, 2013 at 8:18 PM