Vt. Stat. Ann. tit. 24, § 3411

The petition, with a citation, shall be served on the towns, corporations, or persons owning or interested in the highways or lands affected, either as abutting owners or otherwise, as a writ of summons requiring appearance to be made therein within 21 days from the date of service. Unless cause is shown to the contrary, the court shall appoint three disinterested freeholders as such commissioners.