R.I. Gen. Laws § 24-12-11
The necessity for acquisition shall be conclusively presumed upon the adoption by the authority of a resolution declaring that the acquisition of the land, or interest therein, described in the resolution is necessary for the construction or operation. Within six (6) months thereafter the authority shall cause to be filed in the land evidence records of the city or town in which the land is located a copy of the resolution of the authority, together with a plat of the land, or interest therein described, and a statement, signed by the chairperson of the authority, that the lands, or interests therein, are taken pursuant to the provisions of this chapter. Thereupon the authority shall file in the superior court in and for the county in which the land, or interest therein, lies, a statement of the sum of money estimated by the authority to be just compensation for the land taken.
R.I. Gen. Laws § 24-12-11