The township board may, by resolution, increase the membership of the board to 7 directors. The resolution shall not affect the terms of the incumbent directors. Before the first Monday in May following the adoption of the resolution,the township board shall appoint 3 directors, one to succeed the incumbent whose term expires and the 2 additional directors provided for in the resolution, for terms of 3, 4, and 5 years from the first Monday in May of the year of the appointment. Thereafter, upon the expiration of the term of any director, his or her successor shall be appointed for a term of 5 years and until a successor is appointed and qualified for a like term.
If the township board has, by previous resolution, increased the membership of the board to 7 directors, the township board may by new resolution increase the membership of the board by 2 new members in any one year up to a maximum of 11 directors. The new resolution shall not affect the terms of the incumbent directors. Before the first Monday in May following the adoption of the new resolution, the township board shall appoint a sufficient number of directors so that there will be (i) a successor for the full term of each incumbent whose term expires and (ii) the 2 additional directors provided for in the new resolution for terms of 4 and 5 years from the first Monday in May of the year of appointment. Thereafter, upon the expiration of the term of any director, his or her successor shall be appointed for a term of 5 years and until a successor is appointed and qualified for a like term.
For purposes of this subsection (d), a conviction for an offense that disqualifies a director from membership on the board occurs on the date of (i) the entry of a plea of guilty in court, (ii) the return of a guilty verdict, or (iii) in the case of a trial by the court, the entry of a finding of guilt.
60 ILCS 1/170-15