There are 3 ways a foreigner can acquire rights over a property in Thailand.
1. Long Term Lease: Any lease longer than 10 years has to be registered with the Land Department. The maximum length of any lease cannot exceed 30 years.
2. Ownership through a Thai registered company: Although foreigners cannot hold more than 49% of a company registered in Thailand, one can control a Thai company which owns a property.
3. Purchase of a condominium: Foreigners have the right to own freehold an apartment in a project that complies with the Condominium Act. Not every apartment is deemed a condominium, since the Condominium Act imposes strict ments in order to enter this category.