Found this court case in an article on nakedcapitalism.com describing the defective nature of some Pooling and Servicing Agreements:
http://www.nakedcapitalism.com/Adam Levitin Shreds American Securitization Forum Defenses
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For readers who have not followed this wee saga, mortgage securitization abuses are increasingly looking to be a mess of Titanic proportions. The securitization industry created complex and specific procedures for getting the loans into the securitization legal vehicle, a trust. (The loan, meaning the borrower IOU, is called the note; confusingly, the lien is separate and called a mortgage or in some states, a deed of trust).
These procedures were complex for very good legal reasons. These securitizations had to pick their way very carefully through a thicket of issues: state-based real estate law; the Uniform Commercial Code; the desire to create bankruptcy remoteness (so if the originator went bust, the investors would not be exposed to the risk of lenders to the originator trying to get the notes back out of the trust); securities regulations; tax law; trust law.
These provisions were adhered to for nearly two decades. But sometime in the early 2000s, it appears that the industry simply quit observing the requirements of its own contracts, called pooling and servicing agreements. And the worst is that there are no simple fixes for the resulting mess.
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The Naked Capitalism article goes on to link to the Florida Circuit Court Order on a Motion to Dismiss by the Defendant in a foreclosure proceeding, where the motion is apparently granted due to defects in the Plaintiff's pleadings and a chain of endorsement defect in the mortgage.
http://www.scribd.com/doc/44683998/Order-for-BAC-Home-Loans-Servicing-v-StentzOrder in Bac Home Loans Servicing L.P. F/K/A Countrywide Home Loans Servicing L.P. v. Bill Stentz