Nomination for the elective offices of the Municipality shall be made only by petition, carrying the consent of the nominee, signed by registered electors of the Municipality in number not less than 25 nor more than 50. Each candidate shall be nominated by a separate petition, and no primary election shall be held for the selection of candidates for any elective office, and no party mark or designation shall be used in any municipal election. Petition for nomination to an elective office shall be filed with the Lorain County Board of Elections at least 90 days and not more than 150 days prior to election day. The names of all candidates nominated shall be placed on the ballot in the manner provided by the election laws of the State of Ohio.