It is a tricky questions. We do not know how the debts been generated initially. But I could smell this hanky panky.
Lehman probably went through more than two doors, asking 1 penny for 1 dollar MBS from affiliates, and in return to ask a full payment by affiliates. In 2008, nobody wants to buy MBS, and it's a good return. Refinancing played a big role to save MBS, especially those were not from FnF.