The reasonable compensation and expenses of the members of the board and its employees shall be agreed upon among those members, the taxing officials involved, and the executors. If an agreement cannot be reached, compensation and expenses shall be determined by those taxing officials; and, if they cannot agree, by the appropriate probate court of the state determined to be the domicile. That amount shall be borne by the estate and shall be deemed an administration expense.
Source:
Section 13830.9, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=RTC§ionNum=13830.9..