What are the legal consequences of a foreigner marrying an american citizen especially as to his citizenship?
Answer:
You mean a false marriage just to get a green card? I think its deportation if they can prove that.
as to his citizenship, i cant say, but as for the american, if the marriage is fraudulent, solely to allow an alien to enter the united states, both the citizen and the alien can be prosecuted by federal authorities and subject to 5 years imprisonment in a federal penitentiary. The proofs are seen of such fraud by what the persons do after they marry - go their separate ways and never live much together. Thats indicative of fraud
Since you didn't say anything about the marriage being solely for immigration benefits, the answer is
Marrying a non-citizen has no effect on an American's citizenship.
Marrying an American has no effect on a foreigner's citizenship. There are no immediate or automatic immigration or citizenship benefits for the spouse of a US citizen. Any desired benefits must be applied for through USCIS:
http://www.uscis.gov/portal/site/uscis/m...
If the foreigner should, in the future, apply for American citizenship, he or she might or might not risk losing his or her original citizenship. That will depend on the laws of his own country: some allow dual citizenship, others do not. Here is a useful source of that kind of information:
http://www.multiplecitizenship.com/...
The Immigration information post by website user , MyTend.com not guarantee correctness.
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