Once you get married, you could petition for a green card for him from INS. However, they have the right to refuse him entry.
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I am a law school graduate. What I offer is mere information, not to be construed as forming an attorney client relationship.
I will try to give you general guidance and point you in the right direction, but only a lawyer licensed to practice law in YOUR state who is serving as YOUR lawyer can provide you "legal advice" to rely on.