委托合同 英文怎么说

下面这段话是摘自国外房地产网站，
The residential property market is extremely buoyant at the moment and good property mandates are currently in high demand, putting sellers in a strong negotiating position which must be properly managed.
他们都统一使用 mandate(委托管理合约）
地产方面多用Property Mandates 如上文。
供参考。