After notice has been given to the property owners of the amount of the charge, the board of fire commissioners of a fire protection district imposing a benefit charge under this chapter shall form a review board for at least a two-week period and shall, upon complaint in writing of a party aggrieved owning property in the district, reduce the charge of a person who, in their opinion, has been charged too large a sum, to a sum or amount as they believe to be the true, fair, and just amount.
RCW 52.18.070