My prediction...
Barb will be put in protective care. That means taking over all her financial matters. Nothing will pass to Chris because of his abuse. Chris will be emancipated and his checks will go to his own account instead of into Barb's account. He'll be given 30 days to get his stuff out of the house and he will have to find a place to live, a place to store all his toys and he will have to deal with whatever legal matters arise himself. There will be a hasty estate sale where the state (or county) will liquidate everything remaining at 14 Branchland Court to pay for her care. If Chris is lucky, he will be declared incompetent and the State/county will oversee some sort of controlled lifestyle for him. Section 8 housing. Social worker. Food stamps and his tugboat. He will definitely be put on the sex offender's registry. Internet access will probably be forbidden.
...and Chris being Chris, he'll rage and be uncooperative with the government oversight and it will all be taken away, leaving him on the street with his tugboat to fend for himself.