If the instrument is an agreement for sale, lease, option agreement, deposit receipt, commission receipt, or affidavit which quotes or refers to an agreement for sale, lease, option agreement, deposit receipt, commission receipt, or lease and such instrument claims to, or affects any interest in real property, it shall be executed and acknowledged or proved as provided in Section 27287 by the party who appears by the instrument to be the party whose real property is affected or alienated thereby.