Getting back to OP's intent... so far I heard the suggestion about liens (thanks eridanus and SecondCor!), and that only other option is to do your own digging / spying. Does anyone have any concrete, realistic or perhaps just imaginative suggestions on how to do the digging?
P.S. Not sure how some of this discussion shifted into house-wifes but in this case, she actually earned quite a bit more than he did AND brought more assets into the marriage, etc... Guess who was the "money manager" of the family,
hiding handling accounts and all... :-( Anyways, at this point it does not matter. Only thing that does is whether she can get any of what courts say she is owed or not...