Safety clause in Real Estate

A listing agent wants to ensure that he earns a commission for any buyers to whom he showed the property during the listing period, and who later come in and buy the property directly from the seller.

The listing agent should add this to the listing agreement:

  1.  a liquidated damages clause.
  2.  a safety clause
  3.  a contingency
  4.  an unlawful detainer

The answer is B – a safety clause.