I looked into mediation here and my understanding was that even in mediation you can have your own lawyer to advise and review. Had we gone that route, I would have availed myself of that option.
Also, if mediation wasn't getting anywhere, one party could always move it to the more traditional model where the lawyers handle everything.
Not sure if that is all the same where you are. If you suspect you won't be comfortable with the mediator, I would just make sure you are getting your own legal advice - that way your interests are protected, regardless of who she chooses.
Not sure if this all works the same way where you are.
