Who owned Seahorse Submarines??? which was dissolved around the time Herve joined DW? I don't recall from the book if DW was aware that he dissolved the company as I believe he did some "business" during his time with DW under Seahorse Submarines, which had to do with money. It would seem that DW made a claim against a company they thought to exist.
Not sure about the US Bora, but in the UK, a person cannot be held liable for the debts of a Limited Company.
I can't believe that with all the high powered lawyers that Dubai World engaged, that they weren't aware that Seahorse Submarines did not exist. If that is the case then DW should be taking action against their lawyers for being a bit thick.
You can always reteat to the Swat Valley and join up there! They'd have you, they're desperate!