Receive and receipt all money due the county from its collecting officers or any other persons whose duty it is to pay money into the county treasury.
Disburse funds in a manner and for purpose authorized by appropriate law and authority.
Invest, as appropriate, the surplus funds of the county in accordance with county and state laws and regulations and act as the chief liaison between the county and all of its depository banks.
Institute actions in the name of the county against any one who has money that belongs to the county and fails to pay it on demand when it is due, and record of all of these actions.