The commissioners of each county shall:
1. Receipts and expenditures. Examine, allow and settle accounts of the money of the county;
2. Representation. Represent the county;
3. Manage property and business. Care for its property and manage its business;
4. Convey real estate. By a recorded order, appoint an agent to convey its real estate;
5. County ways. Lay out, alter or discontinue ways;
6. Keep books and accounts. Keep their books and accounts on forms and in a manner approved by the Office of the State Auditor;
6-A. Adopt ethics policy. In their discretion, the county commissioners may adopt an ethics policy governing the conduct of elected and appointed county officials.
6-B. Support the State Board of Corrections.
7. Other duties. Perform all other duties required by law.