R.I. Gen. Laws § 33-9-6
An executor or administrator of a solvent estate may erect a headstone, and with the permission of the probate court may erect a monument, and with like permission an executor or administrator of an insolvent estate may erect a headstone at the grave of his testator or intestate. An executor or administrator of a solvent estate may with the permission of the probate court pay to a cemetery corporation or to a town or city a reasonable sum for the perpetual care of the monument, the headstone, and the lot in which the body of the testator or intestate is buried. Where the permission of the probate court is required, it shall determine the amount of the payment and to whom the payment shall be paid. All reasonable payments made under this section shall be allowed as part of the funeral charges in the settlement of the accounts of the executor or administrator.
R.I. Gen. Laws § 33-9-6