We purchased a home in Lacon, Il on contract-for-deed because it was in such bad condition that no bank could loan on it. Our realator, Tracy Sondag, informed us that she has had several transactions involving contract-for-deeds in which the property taxes were lowered due to the market value being decreased. However, when we went to the Marshall County Assessor's office, we were told they would not accept a contract-for-deed real estate sale as legal proof of market value. This is a contradiction of what they have done in several other cases. What would you suggest we do in order to get the assessor's office to treat us with consistency?