The supporting evidence that you would file would be birth certificates, marriage certificate, divorce certificates if either of you have been married previously, proof of your U.S. Citizenship, proof of his legal entry into the U.S., and financial documents of yours to prove your income over the last year at least.
In about 2 to 4 months after filing, she should get a work permit. About 5 to 7 months after filing, you should get a marriage interview. If all goes well there, she should get a green card in the mail a few weeks later.
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