A buyer broker agreement is a contract with the buyer and the broker to work together for a specified time period to help the buyer find a property.
Posthumous [ a. - Born after the death of the father, or taken from the dead body of the mother; as, a posthumous son or daughter. - Published after the death of the author; as, posthumous works; a posthumous edition. - Being or continuing after one's death; as, a posthumous reputation. Meaning of 'posthumous' (Princeton's WordNet)
n. a gift of personal property or money to a beneficiary (legatee) of a will. While technically, legacy does not include real property (which is a devise), legacy usually refers to any gift from the estate of one who has died. It is synonymous with the word bequest. (will, beneficiary, bequest, legatee)