I have a client who is in a big dispute with his sister about an inheritance involving a $12 million house. He claims that an incorrect appraisal on the house was submitted with the estate tax return, which artificially lowered the value, but then it also lowered the buyout that his sister had to pay him for his share of the house.

Yes, there was a lack of marketability discount applied, but he says the appraiser didn't even go inside the house and he misrepresented the number of rooms and bathrooms.