I should add that I always advise any farang buying a house or condo in his teeruk's name to take out a 30 year legal lease in his own name. For the small cost of the stamp duty and fee he gets clear possessory title for 30 years, even if she sells it on.
Of course in selling it on the buyer will find when he goes to the office that a farang has a 30 year lease and will not touch it with a barge pole.