ChD 12 January 1990. Dispute between two property companies over sole letting agreement. P appointed F as sole letting agent of rooms on certain floors of a property which F had introduced to P, for twelve months from date of completion of acquisition. This was followed by a supplemental agreement stating that the twelve month period should run from date of possession instead of date of completion. The original contained a clause stating that P would not assign the property without first procuring that the proposed assignee should enter into a sole letting agreement. P entered into a contract to sell leasehold property to a third company and terminated sole agency agreement with F. F claimed damages for breach of contract . P Claimed that the contract was revocable and the agreement had only been a contract to sell and not a completed assignment. It was held that the contract was an assignment in equity . P was liable for breach of contract. An inquiry to establish damages was ordere