The annual salary of the County Treasurer of Washington County is: as set by the County Commissioners of Washington County under Title 28, Subtitle 2 of this article; or any increased compensation authorized by the County Commissioners of Washington County. The County Treasurer shall determine the annual salaries of the deputy treasurer and employees in the office, subject to: the approval of the County Commissioners; and any increased compensation authorized by the County Commissioners. The County Commissioners of Washington County shall pay the office expenses of the County Treasurer of Washington County.