1. Don't marry a lady just to get a travel visa. A marriage in Thailand is recognized in the U.S., i.e., if you are legally married in Thailand, then you are legally married in the U.S. I would not be surprised to find that it's the same in other countries. If the relationship doesn't work out, it may not be easy to arrange a legal divorce, plus all the paperwork proof you'll have to bring with you, including the translation issue, since the marriage documents in Thailand are in the Thai language. Take your time to make sure she's really the one you want to marry. If you think that you can get a "fiancee visa" (see below), then consider that.
2. Don't get into human trafficking. The underworld often pays farang guys money to marry a Thai lady (sham marriage) and take her to another country. I won't address the moral issues here, which are obvious. Just look at the realities. If you get caught, you can get into serious trouble, especially in your home country or as regards Thailand. Thailand's immigration is computerized, so that they can see your history and all associated notes. With international cooperation on these issues, even if you change passports (e.g., losing your current one), your records may be linked (as already reported by others in Thailand). If the lady you "courier" gets harmed or in major trouble, you may be an accessory to that crime. In many cases, neither the man nor the woman has much of an idea where she will really be going, and there are a lot of tricks out there, including forced sweatshop labor, prostitution, porno flicks, "snuff flicks" (e.g., where they are viciously raped, tortured and murdered in the movie), and various other tragedies. It is common for a poor lady to believe a trusted associate and take a chance with wishful thinking only to find that she's been tricked on the other end (less pay, or the job isn't a restaurant but is prostitution, she's imprisoned until she "earns" the mountain of money she owes for being brought over, she's raped and told if she goes to the police she'll go to jail, she's blackmailed about revealing her shame back home, etc., etc.). You probably don't know what will really happen. Maybe she will be better off with a real job, but maybe it will be a terrible tragedy. They'll usually try to convince you that it's nothing bad, of course. Or, they may not really know... But YOU are documented on paper as her sponsor.
