(1) The office may grant attorney fees to attorneys for representing claimants before the office. Any attorney fee granted by the office is in addition to compensation awarded the claimant under this part.
(2) The office may regulate the amount of the attorney fee in any claim under this part when an attorney is representing a claimant.
(3) In cases under this part that go before a district court, the judge may grant, in addition to compensation benefits granted, attorney fees to attorneys for representing claimants before the court.
(4) Attorney fees in excess of 5% of the amount paid to a claimant or on a claimant's behalf may not be paid directly or indirectly to a claimant's attorney.