tracing - grab the item tracing commingled items - make a chart separating money based on source and evaluate each transaction based on applicable rules subrogation marshalling Bona fide purchasers - cannot recover against a BFP (person who pays value for property and without notice of the trust, act in good faith) property in a revocable trust that became irrevocable upon death is subject to creditor's claims if estate is inadequate to pay debts