A purchase and sale agreement or alternatively a sales and purchase agreement is an agreement between a buyer and a seller of real estate property, company stock, or other assets. The person, company, or other legal entity acquiring, receiving, and purchasing the property, stock, or other assets is referred to as the buyer and the entity disposing, conveying, and selling the assets is referred to as the seller. A PSA sets out the various rights and obligations of both the buyer and seller, and might also require other documents be executed and recorded in the public records, such as an assignment, deed of trust, or farmout agreement.