The members of the Board of Adjustment shall be appointed by the Township Committee. The terms of the members first appointed under this chapter shall be so determined that to the greatest practicable extent the expiration of such terms shall be distributed evenly over the first four years after their appointment. Thereafter, the term of each member shall be four years. No member shall be permitted to act on any matter in which he has, either directly or indirectly, any personal or financial interest. A member may, after public hearing if he requests it, be removed by the Township Committee for cause. A vacancy occurring otherwise than by expiration of a term shall be filled for the unexpired term only. A member shall serve for a term of four years from January 1 of the year of his/her appointment. The terms of the members first appointed shall be so determined that, to the greatest practicable extent, the expiration of such terms shall be distributed evenly over the first four years after their appointment, provided that the initial term of any member shall not exceed four years. Thereafter, the term of each member' shall be for four years. Nothing in this chapter shall, however, be construed to affect the term of any present member of the Zoning Board of Adjustment, all of whom shall continue in office until the completion of the term for which they were appointed.