Who, that's the problem - there ARE NO ASSIGNMENTS. MERS was the responsible party for failing to do that. Anyone who claims to be an assign, a holder in due course, has to prove they have standing - that's a problem also because the chain of assignment is lost and cannot be "reconstructed" without unwinding a mess of MBS's and by violation of the MBS Pooling, subjecting themselves and investors to millions in taxes and penalties.
Some loan servicing banks will walk away before risking the chance of having fork over millions to establish that chain.
You really should follow the works and advice of Adam Levin and excellent defense foreclosure lawyers like Tom Ice, Carol Asbury, Matt Weidner, Lynn Szymoniak, Nick Wooten, Gary Blackburn, and Max Gardner III.
I'll let their works testify for themselves without "making up stuff".