In the housing market in the city of Merida is customary for the cost of the “Transactional agreement to vacate and deliver” or lease, to be the equivalent of one month´s rent, which is not always the case, since the costs of contracts are based on the amount of income to pay for the entire year. The market is very used to handle it this way. In recent years, owners have become more sensitive to the need to adhere to a more realistic cost of these contracts, being that it is reasonable to pay the equivalent of 60% of the monthly rent.