The Toth family lives in a residence that they have owned for several years. They purchased the residence from St. Matthew's Catholic Church, which had used the house as a rectory for its priest. To the Toths' surprise, since they purchased the residence, they have not received any ad valorem property tax bills from either the city or the county. Is there a plausible explanation for this? Explain. What, if anything, should the Toths do about the property tax matter?