Fiance Visa Fraud

[immihelp]

I would like some advice on a fiance visa. If a South American citizen seeks a fiance visa under false pretenses such as let her future husband believe she wants to marry him but only wants him to believe this so she can get here, can he have her deported immediately. They have received her visa and she is on her way to the U.S. We have found out from a friend in her home town that her intentions are not honorable. Does he call the police or an agency with the Embassy if he finds out she has lied to him about her intentions. I need this information for my son.

[immihelp]

If the sponsor knows for sure, he can always back off sponsorship.

Also, after getting greencard, you have to again prove at the end of two years that the marriage is genuine. Sponsor can back off at that time too.