“On completion of the transfer of the said property or of the said shares as hereinbefore mentioned or any dissolution of their farming partnership occurring after such completion the Wilsons will give to Trueloves or their issue the sole right to re-purchase the said property or the said shares at the price of Thirty Seven Thousand Pounds”
“Onthe death ofthe survivor of the two first named Purchasers the third named Purchasershall give to the Trueloves jointly or in the event of either predeceasing to the of them or in the event survivorof both predeceasing to Trueloves issue the right to re-purchase the property at the price of Twenty thousand Pounds to with the benefit of vacant possession”
“an implied, resulting or constructive trust in favour of the Defendants [that the Farm is] to be conveyed to the Defendants upon the demise of [Mrs. Wilson], and upon payment of the sum of£20,000 ” 23. They also rely on: “the operation of the doctrines of estoppel by convention, equitable or promissory estoppel or equitable forbearance”
“When the parties to a contract are both under a common mistake as to the meaning or effect of it -and thereafter embark on a course of dealing on the footage of that mistake - thereby replacing the original terms of the contract by a conventional basis on which they both conduct their affairs, then the original contract is replaced by the conventional basis. The parties are bound by the conventional basis. Either party can sue or be sued upon it just as it had been expressly agreed betweenthem.”
“This is not strictly a case of the parties having established, by their construction of their agreement or their apprehension of its legal effect, a conventional basis upon which they have regulated their subsequent dealings as in the Amalgamated Investment case ... The dealing alleged to give rise to the estoppel is the entry intothe agreement itself in the belief that it would produce a particular legal result. In fact, for reasons which had nothing to do with the defendant, the Plaintiffs got it wrong ...”