A transfer of property or title thereto in exchange for a sum of money; the agreement or contract by which such a transfer takes place. A sale requires a free offer in exchange for a freely agreed-upon purchase price between two individuals who are competent to contract with each other, and who have mutually agreed to the deal. An actual exchange or promised exchange of money is required. Finally, the object, parcel, or title being sold must be capable of being transferred by the seller.