In normal circumstances, churches are encouraged to consider additional pay beyond termination to allow for reassignment. In many situations, both the supervisor and the Classis are comfortable with having a SIM present to conduct the normal business meetings of the consistory. This is reasonable, provided there are no unusual problems. The formal approval of the supervisor and Classis is essential in this regard. The Book of Church Order now requires that contracts with specialized interim ministers be approved by the Classis.
Classes vary in their procedures for approving calls and contracts.
Your Classis supervisor is familiar with the procedure in your Classis. There is nothing to prevent such involvement. In practical terms, most SIMs prefer to leave that function to the supervisor. The SIM can be very helpful in the preparation of the church profile, introductory letter, and mission statement. The SIM can also help set up the process for interviewing and can assist in evaluating the interview.