Attach your allonges!
An allonge is a piece of paper which when attached to a note is used to transfer ownership of a note. Be aware, however, that an allonge must be permanently affixed to the note which it transfers. A paper clip will not do it. There have been numerous cases where a person or institution who has purchased a note did not properly affix the allonge to the note. The courts refused to recognize the ownership of the new person or institution.
A note may also be transferred by a written agreement. An Assignment of Mortgage which also assigns the Note is such an agreement.
Please note this blog is not legal advice. It is intended as educational material. For your specific issue you should seek legal advice from an attorney.