I originally posted my case here, but I think that was the wrong portion of the forum to post in, since it doesn't seem to be very active:
Immediately after filing our answer, we received a "debt validation" through the mail:
-An alleged account statement showing a payment by us 2 days before account charge-off. (why would we make a payment 2 days before they charged it off? I thought charge off happened 6 months after last payment). Plus 2 additional account statements.
-A bill of sale between the original bank and the first JDB, and a bill of sale to Midland funding.
-A