With everything else that has been said here, Mr. Patterson, with his Corporations and money would have been advised to have a prenup made and filed. It would have been a very stupid mistake to have gone against the advice of his attorneys at that point.
Then Mickey's firm needs to lead the way in investigating the two stepsons and their friends. Hopefully, something criminal will be found, and then he can file for divorce, holding the criminal actions over the witches' heads for a quick settlement.
Well, that would be my strategy. Fixing the Corporations would be secondary to getting out of the situation that is causing the downfall is first.