For some reason I can not reply to your post. I had the same issue before for mediation but here is one way to solve the issue. Ask for Open mediation this way if it is used as a stall tactic or to drain money it can be used against your ex. Here is a link to the open/closed mediation.
What is the difference between closed and open mediation? | Riverdale Mediation
Usually a lawyer will request closed.
