My wife has a school loan in which she thought her dad signed for. After his death, it came to our attention that he forged her name on the loan application documents. We sent this to the company who is financing the loan to dispute it. And after they said they would get a handwriting expert to compare signatures (which I highly doubt they did because even I can tell the difference between them) they determined there was nothing to dipute. We have not persued it any further because we were not real sure we had a case. Any advice?