Probate Code
Guardians and conservators (aka guardians of the estate) are generally entitled to reasonable compensation for their work. State statutes limit the fees to a certain amount which cannot be exceeded without prior court approval. Others just permit reasonable compensation and allow courts to interpret what constitutes excessive compensation.
If a limited guardian or guardian is appointed for any individual, the court shall make an allowance to be paid by the limited guardian or guardian, for all reasonable expenses incurred in prosecuting or defending against the petition.
Probate courts are authorized to allow in the settlement of the accounts of any limited guardian or guardian such reasonable sums as the limited guardian or guardian shall have paid for the suitable support of his or her ward and the ward’s family, and also a reasonable compensation to the limited guardian or guardian for his or her services. It is permissible for a limited guardian or guardian to decline compensation, and shall not be grounds for removal of the limited guardian or guardian.
R.I. Gen. Laws § 33-15-14
R.I. Gen. Laws § 33-15-27
http://webserver.rilin.state.ri.us/Statutes/TITLE33/33-15/33-15-27.htm