Assuming you are a US citizen and he came in with a B-2 visa, you have the option of filing spouse based permanent resident for her. If you file the application before her I-94 expiration date, then he does not need to leave during the case pending period. On the other hand, if you get married and file the application too early, there is a risk that his tourist entry may be treated as a misrepresentation or fraud. File the case at the right time is very important for this type of case.
Answered on Jul 07th, 2011 at 2:40 PM