The answer to this question hinges on who is the procuring cause of the sale, and it will be up to an arbitration panel to make the final determination if there is a procuring cause dispute.
Procuring cause is defined as the uninterrupted series of causal events which results in the successful transaction—a sale that closes. NAR provides an extensive list of specific factors an arbitration panel should consider in such disputes. Here are a few of those factors:
-The nature and status of the transaction
-The nature, status, and terms of the listing agreement or offer to compensate
-The roles and relationships of the parties
-The initial contact with the purchaser: Who first introduced the buyer to the property?
-The conduct of the broker or agent
-Continuity and breaks in continuity
-The conduct of the buyer
-The conduct of the seller
In the question above, the listing broker showed the property. However, an arbitration panel will consider numerous factors, like those listed above, to determine procuring cause of the sale.