How to ensure your commissions are secured in a land deal which you are brokering?

During the drafting of the contract be good

sorry Nitin, this is not my specialty

Using the formulation of a contract agreement before the procedure

respectd sir, well i dont know about ur country but actully here we do frst. when both party ready to buy and sell one  agreement between them, there you mention your brockereg rate there agreement or your name also . its means you are complitelly legel . no one can  touch your money. hope you find your anser. thanks