RSA 563-D:17 Validity of Transfer On Death Deed.

I. A transfer on death deed or a revocation of a transfer on death deed is deemed to be valid if it was created or revoked in accordance with this chapter.
II. An action to contest the validity of a transfer on death deed or a revocation of a transfer on death deed must be commenced within the later of:
(a) One year after the transferor's death; or
(b) Six months after the appointment of the administrator of the transferor's estate, if the administrator was appointed within one year after the death of the transferor.