I’ll have to reply tomorrow as I need my sleep, but IMO it is clear from his statements and actions that he was far from an unwilling partner in that mess.
I’m not sure that he would want people doing a heavy examination of his years in AC either.
The key thing to understand about him is he will never attack someone that has not attacked him first.
In this case, she never attacked him. So he offered her twice the amount that had been previously offered. When his partners saw he was unsuccessful, they determined his approach was weak, and they went after her using their lawyer’s argument.
He didn’t like that his partners thought he was weak and ineffectual, and that they had maligned him in the business society (local news reports). When they lost their lawsuit, it is said he received a communication via lawyers that his partners were going to sue him. They attacked him first, so he bankrupted them.
When Donald loses out on a deal, he reacts emotionally and becomes frustrated. If his interest had been attacked, he will fight back with a vengeance. If he had not been attacked, he will walk away pissed. In this case, his partners refused to walk away but lost anyway, twice.