Seeking expert counseling is a sign of strength. A personal relationship with a caring professional is proven clinically effective.
There is a very clear and simple approach that should be taken in court.
To try to present the testimony of an expert witness is probably a fruitless course of action.
Trying to show that he may be bipolar
because he is grandiose, or any other speculative reasons for which he can counter with his own expert psychologist (who can be unwittingly influenced by this man's presentation to this psychologist).
Lying on job applications will probably not be strong evidence to put his custody fitness into question either.
HOWEVER, he is not fit because he is emotionally abusive. He has shown his fists. He bullies. He has anger issues (documented outside of the home and documentable with the testimony of the children.
An attorney who focuses on THIS aspect of the man's behavior will most likely convince the court that a man like this may merit no more than supervised visitation, and may be ordered to undergo anger management classes.
So rather than have to diagnose mental illness, it is much easier to demonstrate that he is abusive by his proven behavior and not from a speculative diagnosis (all diagnoses are speculative, in a sense).
I urge you to focus like a laser beam on this behavior and predict that this is your best chance to gain the attention and support of the court.
I shall keep your family in my prayers.
Elliott, MAE, LPCC, NCC, CCMHC