he might, but its certain he will without his own attack dog.
its not complex, but it is a specialist kind of practice. it would be foolish for the OP to try in on his own. if both spouses were fair minded and knew all the ins and outs of family law (includes contract law, spousal support, child support, estate appraisal etc.), they might work out a fair deal if the estate were small and/or there were no kids. if there were kids involved the judge will take a closer look at a settlement but if not, its a contract and if the contract was voluntarily entered, it doesn’t have to be fair. since she’s got a lawyer, never, for one second, assume her attorney is working for a fair deal.
in the OP’s case there obviously hostility and hurt feelings. a guy I worked with and I were discussing family law fights. I opined that spouses fight because they like fighting – they’ll fight over spoons or the vacation home with equal ferocity. his opinion – more insightful – was that they fight to hurt each other. the OP will encounter a dispassionate adversary in the other lawyer, but that kind of vindictiveness from the spouse.