My mother sold her house 2 years ago. The first time she tried to sell it 3 years proir she had it inspected and nothing was found, she was even offering a warranty at that time. She had major construction done, but it was all in the basement that she made into an extra luxury unit. The current owners have found water damage in one of the upstairs units and have had to do major repairs because of this. They want her to pay for all the repair costs and costs for energy since they found wires that were done wrong,which were not messed with while we were there, (the basement was only worked on). She is currently going to arbitration under their requests. She's been billed 490 dollars for this so far.
My question is, who should be responsible for all the damage costs? The current owners did not have it inspected before they moved in, and my mother had it inspected 3 years prior with everything fine.