R.I. Gen. Laws § 34-11-1.4: Sale price recording.

Every deed presented for recording due to the sale of property, which results in the transfer in ownership of the property, shall contain or have endorsed upon it the total dollar amount of the actual sale, which shall be recorded as part of the deed. A city or town clerk may decline to accept a deed for recording if the deed is not in compliance with this section. Failure to comply with this section shall not affect the validity of any deed.