Massachusetts Land Contract Template. A Massachusetts land contract records the terms in a purchase and sale agreement between two parties for undeveloped land.A master purchase agreement is a legally binding contract between buyer and seller, and typically relates to buying and selling goods rather than services. The Court held that the standard deadline to execute the purchase and sale agreement is not necessarily a hard deadline. The MAR Standard Form Purchase and Sale Agreement is designed to protect the interests of both the buyer and the seller in a property transaction. Unit No. (the "Unit") of. Condominium,. (the "Condominium") created pursuant to Chapter 183A of the Massachusetts General Laws (the "Act") by. Real Estate Lawyers for Boston Property Transactions. F. Product Documentation. It sets out the obligations of each party from the time the property is taken off the market to the closing.