"16. It is said that there are two breaks in the chain of causation between the acts of the claimants and the ultimate transaction. Firstly, it is said that Kaye & Co, without authority from anyone, prepared and sent to Mr Cullinane their own particulars of the property. Secondly, it is said when Mr Cullinane expressed interest in the property they did not put him into contact with the claimants or arrange for him to view it. Either of those events alone, it is said, would be sufficient to prevent the claimants from the being the effective cause of the sale"
"... the fact that one agent introduces a person who ultimately purchases after a later introduction by another agent will not necessarily entitle the first agent to commission. In such a case the court must determine which of the two agents was the effective cause of the transaction taking place"