§ 108. Self-proved wills
A will may be self-proved as to its execution, by the sworn acknowledgment of the testator and the witnesses, made before a notary public or other official authorized to administer oaths in the place of execution in the following circumstances:
(1) The testator signed the instrument as the testator's will or expressly directed another to sign for the testator in the presence of two witnesses.
(2) The signing was the testator's free and voluntary act for the purposes expressed in the will.
(3) Each witness signed at the request of the testator, in the testator's presence, and in the presence of the other witness.
(4) To the best knowledge of each witness at the time of the signing, the testator was at least 18 years of age or emancipated by court order and was of sound mind and under no constraint or undue influence. (Amended 1985, No. 144 (Adj. Sess.), § 18; 2017, No. 195 (Adj. Sess.), § 2.)