If the Wagner 4 are found guilty (or not guilty as happened with OJ Simpson) the families will likely try to get a Judgement against them in Civil Court. (My 2 cents)
The Wagner 4 are not paying for their defense so whatever money or assets they all had at the time of arrests, should still be there.
The exception would be if Jake and GW4's assets are going towards child support and of course jail related expenditures such as commissary, phone calls, medical related charges, maybe some court costs, trial clothes, etc...
It's too late for them to hide/transfer their money/assets now. They could try from jail but seriously, what family member would want to help them hide assets to keep the victims from any gain? It's one thing for a relative to manage their affairs, someone has to, but to deliberately hide things from the victims is not something I see a relative doing for them.
I have wondered if it is possible the attorneys had them sign control of assets over to FW. She can do a lot from outside...