Please, Glen...don't go to that meeting without a legal representative who can help you put your points forward in the best possible way.
It will be extremely difficult if not impossible for you or your wife to separate the emotion from the issues - and I don't mean that in a negative way - but going without a legal representative to help keep you composed and on point would be akin to representing yourself in court in your own defence. It's always a bad idea!
CASA will almost certainly have a legal representative there...