She'll have to pay taxes, if owed, on that cash income one would presume. If the killer sent his already-earned income to her from the states and she was overseas, where does she pay taxes? US? Philippines? Australia? Or does she's owe taxes at all?
But it's not illegal to give people your money.
Ill-gotten maybe I don’t know two. Social Security numbers, married to two men at the same time, multiple aliases. This woman is no naive little wall flower