The Maine Certificate of Value (COV) is a document used in real estate transactions in the state of Maine. It is used to show that the buyer and seller have agreed on the sale price of the property, and it also confirms that the transaction has been recorded with the local municipality. There are three types of Maine COV: the Standard COV, the Mobile Home COV, and the Vacant Land COV. The Standard COV is used for residential properties, the Mobile Home COV is for mobile homes and manufactured homes, and the Vacant Land COV is for land purchases. The COV must be submitted to the municipality at least 10 days prior to the closing date of the transaction, and it must be completed and signed by both the buyer and seller.