I was going to post this is the VISA forum, but there were only things about VISAs for Thailand (that I saw).
A friend of mine wants to bring his Thai gf to America and get married. He does not want to wait six months to a year to get a fiance VISA. He is going to get her a tourist VISA with an invitaton letter and then marry her when she arrives in America. He thinks she can just stay and he can get her a green card since they are married.
Is that true?