How does that support what you implied in your earlier comment? From what I see the incentives are just all wrong. Based on my limited reading, she appears as someone working within the legal system to keep her (ill gotten) wealth. You can condemn her for that, but it's a far cry from being in on some larger plan of faking her husband's death. And her not being "the sharpest tool in the shed" is even more evidence against her knowingly being part of a larger plan.