Is the land chanote or the lease in the Thai persons name. Go to the land department with both Thai persons, have the ones whose name it is in sign it over to the other Thai person. You pick up the cost and it gets changed. But will it be considered a sale or what for tax purposes? You need to provide more info to get a very definitive answer.
However if the one whose name you put it into originally does not want to sign you are up the creek without a paddle.
Of course a lot of this depends on what the lease actually says. What is the advantage to the one signing it away
If you are just switching girlfriends I think you may have a problem.
