R.I. Gen. Laws § 33-17-21: Addition of parties to suit for forfeiture.

During the pendency of a forfeiture suit, the court may, on motion, permit any person interested to become a party to the suit by indorsing his or her name on the writ, and by giving surety for costs, if required; and thereupon the person shall have the same rights and be subject to the same liabilities as if his or her name had been indorsed upon the writ before the service thereof.