Every guardian empowered to sell or mortgage as provided in this chapter shall, before making the sale or mortgage, give bond with a surety or sureties satisfactory to the court that he or she will apply the proceeds of the sale or mortgage to the purposes for which the sale or mortgage was authorized, and invest the proceeds, or the surplus thereof, as the case may be, in such investments as are allowed by law, or in such other manner as the court may direct.
R.I. Gen. Laws § 33-19-8