(a)
At any time permitted by Section 2640 and upon the notice therein prescribed, the guardian or conservator of the person may petition the court for an order fixing and allowing compensation for services rendered to that time.
(b)
Upon the hearing, the court shall make an order allowing any compensation the court determines is just and reasonable to the guardian or conservator of the person for services rendered. The compensation allowed to the guardian or conservator of the person may, in the discretion of the court, include compensation for services rendered before the date of the order appointing the guardian or conservator. The compensation allowed shall thereupon be charged against the estate.
(c)
The guardian or conservator shall not be compensated from the estate for any costs or fees that the guardian or conservator incurred in unsuccessfully opposing a petition, or other request or action, made by or on behalf of the ward or conservatee, unless the court determines that the opposition was made in good faith, based on the best interests of the ward or conservatee.