REO question after closing

[Chris Lawrence]

I recently purchased a REO off Auction.com and closed on the deal, everything is in my name. Prior to closing my attorney caught a mistake on the closing statement and mentioned it to the sellers attorney and they didnt want to fix the mistake. Thus me benefiting $2,500's as the amount on the common charges for the townhome was over estimated. My attorney called me a few weeks after closing and said I have to pay the $2,500. Am I legally responsible to pay for this as it was a mistake on the sellers side and it's in my name?