Me. Rev. Stat. tit. 18-C, § 1-307

The register has the power to probate wills, appoint personal representatives as provided in sections 3‑302 and 3‑307 and perform other duties set out in this Code. The acts and orders that may be performed by the register under this Code may also be performed by a judge of the court or by a deputy register appointed under the provisions of section 1‑506.