Councilmen at large shall have resided in the City and Councilmen from wards shall have resided in their respective wards for at least one year next preceding their election.  Each member of Council shall be an elector of the City, shall not hold any other public office or employment, except that of notary public or member of the state militia and shall not be interested in any contract with the City, and no such member shall hold employment with the City.  A member who ceases to possess any of the qualifications herein required or moves from his ward, if elected from a ward, or from the City, if elected from the City at large, shall forthwith forfeit his office.
(ORC 731.02)