(1) A city or town authorized to sell general obligation bonds under this chapter may issue and sell any portion of the bond in denominations of less than $5,000 by: (a) competitive public sale, directly to members of the public, at preestablished interest rates; or (b) private sale. (2) Citizen bonds may be issued for any purpose for which a city or town may issue general obligation bonds. (3) Bonds issued under 7-7-4211 through 7-7-4213 may be known as "citizen bonds". (4) An officer, employee, contracted financial consultant, or contracted advisor employed or retained by a city or town selling citizen bonds may not purchase those bonds.