If you went through the legal channels and got a license, not a do it your self kit off the internet or some Vegas chapel, etc. Each state would have the opportunity to challenge it if it were not legal.
Depends on your immigrant's status. You should marry for love anyway...
If you have been married to your husband for many years, and you are not using the clause just to make your marriage legal . it is alright.
yes it makes the immigrant a citizen
yes
It is legal in the United States for an illegal immigrant to marry a US citizen. Once the marriage is legal, the illegal immigrant becomes a legal immigrant and can stay in the US for the course of the marriage.
If the marriage was legal where it was performed, the US will recognize it as a legal marriage, with the responsibilities and obligations expected.
Yes
I don't understand your question. Marriage fraud to violate immigration law is illegal and a felony. It is illegal to marry someone to make them legal. It is not illegal to marry an illegal immigrant because you love them. It is not illegal for you to immigrate your illegal spouse...assuming that the marriage is legitimate. It is illegal to mar them.
No it is not. Watch the movie "The Proposal" for more info!
Yes, if he then becomes a legal resident There is nothing illegal about marriage, however, since the other one is an illegal immigrant, they are not likely to be granted citizenship simply because of the marriage. The two could be separated for many years.
If a license was obtained and a marriage performed according to the laws of the state then it is legal.
If you followed the proper legal process to get married, then the marriage is legal. It doesn't matter if he's here illegally or not.
Yes. Such marriages are perfectly legal in any state that has legalized same-sex marriage. There is no citizenship requirement or screening for marriage in the United States.
Sure, interracial marriage is legal in all states. If she's an immigrant she will need to apply for citizenship.
No, she is not. She will be allowed to remain in the US with her spouse and children, but she will have to apply for citizenship separate from her marriage. The US citizen REMAINS a US citizen. The immigrant remains an immigrant and must follow the legal path to resident immigrant status, and from there to citizenship. Marriage is not a free pass to residency or citizenship.
No.... it doesn't. In Spain it does.