Then why not seek recourse from them???
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AMBAC and MBIA has alreay gone bust! The fact that you don’t know that shows that you are not following this situation closely. IMO you really should educate yourself before you express an opnion!!
Neither MBIA or AMBAC has declared bankruptcy yet. Now, Lehman Brother already filed, so maybe it’s you who is not as familiar with the Real Estate Capital markets.