I purchased second mortgage foreclosure a year and a have ago.

Not much practically unless you are contending there was equity in the property or that the sale wasnt commerically reasonable. You can try to challenge the result, but unless you would be able demonstrate that you would have paid off the first mortgageto retain possession, which you could have equally done by a re-fi, you likely made a poor choice of investing in repairing a property subject to a defaulted mortgage. The bigger issue is, if you were holding the second, what did you do to ensure payment on the first if anything as the second was subordinate to the first which was still owed.