Mediation is not the right process for everyone. It is important for you to understand some of the potential pitfalls of this process before you enter into it. These are:
It is voluntary and therefore you cannot proceed if one party rejects it;
There is no timetable and so matters could be dragged out if one party is less cooperative than the other;
There is no way of forcing somebody to produce information if they do not wish to do so. In those circumstances the mediator may need to bring the process to an end, and you might already have spent a lot of time, energy and money by then;
There is no guaranteed outcome as, unless you both accept the terms, either you or your partner could walk away from the process.