Challenging a Will in Thailand on the Ground of Lack of Testamentary Capacity: 5 Key Issues Thai Courts Consider
Can a will be challenged because the testator lacked mental capacity? Under Thai inheritance law, a will may be declared invalid if the person making it did not have testamentary capacity at the time of execution. Thai courts carefully examine medical records, physician testimony, witness evidence, video recordings, and suspicious surrounding circumstances before deciding whether a will should be upheld or revoked. This article explains the five key legal issues considered by Thai courts and provides practical guidance for both beneficiaries defending a will and heirs seeking to challenge its validity.
