SECTION 27. QUALIFICATIONS.
   (a)   The Mayor and each Councilor must be a qualified elector under State law, and reside within the City for at least one year immediately before election or appointment to office.
   (b)   No person may be a candidate at a single election for more than one City office.
   (c)   Neither the Mayor nor a Councilor may be employed by the City.
   (d)   The Council is the final judge of the election and qualifications of its members.