I took out 6 small-ish private student loans (between 3k and 8k), the original promissory notes dating between 2005-2007. All have since been purchased by NCT. They were serviced by AES for years. Once they became due, I paid every month on all of them, to the tune of 19k total between 2009-2013. In 2013, my co-signer declared chapter 13 bankruptcy and--I just discovered last week--he was able to list the loans from NCT on his chapter 13 bk and listed me as the sole responsible debtor. I found out that my co-signer's attorney included the student loans in his Chapter 13 bankruptcy and that th