Massachusetts General Laws Part II. Real and Personal Property and Domestic Relations (Ch. 183-210) Ch. 190B, § 2-504

(a) A will may be simultaneously executed, attested, and made self-proved, by acknowledgment thereof by the testator and affidavits of the witnesses, each made before an officer authorized to administer oaths under the laws of the state in which execution occurs and evidenced by the officer's certificate, under official seal, in substantially the following form:

I, _______________, the testator, sign my name to this instrument this _____ day of _________, and being first duly sworn, do hereby declare to the undersigned authority that I sign and execute this instrument as my will and that I sign it willingly (or willingly direct another to sign for me), that I execute it as my free and voluntary act for the purposes therein expressed, and that I am 18 years of age or older, of sound mind, and under no constraint or undue influence.

We, _______________, _______________, the witnesses, sign our names to this instrument, being first duly sworn, and do hereby declare to the undersigned authority that the testator signs and executes this instrument as [his] [her] will and that [he] [she] signs it willingly (or willingly directs another to sign for [him] [her]), and that each of us, in the presence and hearing of the testator, hereby signs this will as witness to the testator's signing, and that to the best of our knowledge the testator is 18 years of age or older, of sound mind, and under no constraint or undue influence.

The State of _______________

County of __________________

Subscribed, sworn to and acknowledged before me by ________, the testator, and subscribed and sworn to before me by _________, and _______, witness, this _____ day of __________.

(Seal)

(b) An attested will may be made self-proved at any time after its execution by the acknowledgment thereof by the testator and the affidavits of the witnesses, each made before an officer authorized to administer oaths under the laws of the state in which the acknowledgment occurs and evidenced by the officer's certificate, under the official seal, attached or annexed to the will in substantially the following form:

The State of _______________

County of __________________

We, ____________, ____________, and _____________, the testator and the witnesses, respectively, whose names are signed to the attached or foregoing instrument, being first duly sworn, do hereby declare to the undersigned authority that the testator signed and executed the instrument as the testator's will and that [he] [she] had signed willingly (or willingly directed another to sign for [him] [her]), and that [he] [she] executed it as [his] [her] free and voluntary act for the purposes therein expressed, and that each of the witnesses, in the presence and hearing of the testator, signed the will as witness and that to the best of [his] [her] knowledge the testator was at that time 18 years of age or older, of sound mind, and under no constraint or undue influence.

Subscribed, sworn to and acknowledged before me by __________, the testator, and subscribed and sworn to before me by __________, and __________, witnesses, this __________ day of __________.

(Seal)

(c) A signature affixed to a self-proving affidavit attached to a will is considered a signature affixed to the will, if necessary to prove the will's due execution.