Maine Revised Statutes Title 18-C. Probate Code § 2-502. Execution; holographic wills

1. Witnessed wills. Except as otherwise provided in subsection 2 and in sections 2-505 and 2-512, a will must be:

2. Holographic wills. A will that does not comply with subsection 1 is valid as a holographic will, whether or not witnessed, if the signature and material portions of the document are in the testator's handwriting.

3. Extrinsic evidence. Intent that a document constitute the testator's will may be established by extrinsic evidence, including, for holographic wills, portions of the document that are not in the testator's handwriting.