R.I. Gen. Laws § 46-2-17: Amendment of proceedings.

Any proceeding in taking any property or estate or rights of property, or in claiming damages therefor, or other proceeding under the provisions of §§ 46-2-12 — 46-2-26, may at any stage of the proceeding, with the leave of the court, be amended upon such terms and conditions as to the court may appear to be just and proper.