15A V.S.A. § 5-104: Jurisdiction and venue

(a) The Probate Division of the Superior Court has jurisdiction over a proceeding for the adoption of an adult or emancipated minor under this article if a petitioner lived in this State for at least 90 days immediately preceding the filing of a petition for adoption.

(b) A petition for adoption may be filed in the Probate Division of the Superior Court in the district in which a petitioner lives.