Maine Revised Statutes Title 18-C. Probate Code § 2-503. Self-proved will

1. Self-proved at execution. Any 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 where execution occurs and evidenced by the officer's certificate in substantially the following form:

I, ․․․․․․․․․․, the testator, on this ․․․․․․․․․․ day of ․․․․․․․․․․, 20․․, being first duly sworn, do hereby declare to the undersigned authority that I sign and execute this instrument as my last will and that I sign it willingly (or willingly direct another to sign for me), as my free and voluntary act and that I am eighteen years of age or older or am a legally emancipated minor, of sound mind, and under no constraint or undue influence.

We, ․․․․․․․․․․, ․․․․․․․․․․, the witnesses, being first duly sworn, do hereby declare to the undersigned authority that the testator has signed and executed this instrument as (his) (her) last will and that (he) (she) signed it willingly (or willingly directed another to sign for (him) (her)), and that each of us, in the presence and hearing of the testator, signs this will as witness to the testator's signing, and that to the best of our knowledge the testator is eighteen years of age or older or is a legally emancipated minor, of sound mind and under no constraint or undue influence.

2. Self-proved subsequent to execution. An attested will may at any time subsequent to its execution be made self-proved 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 where the acknowledgment occurs and evidenced by the officer's certificate, attached or annexed to the will in substantially the following form:

3. Affidavit sufficient. 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.