What is the penalty for backing out of a seller finance deal?

[Levertis Brock]

I backed out of a seller finance deal after the contingency’s expired what am I on the hook for?? I’am being told from the law firm that was handling it that I have to pay the paperwork fee a title fee and pay for a repair on the house I was going to buy. I think they just doing this out of spite I think I only have to pay emd.