Is an interim agreement enforceable or unenforceable?

The first question to be addressed is whether the interim agreement is sufficiently certain so as to be enforceable. Deslippe v. Maguire Construction Limited, 1976 CanLII 947 (SK QB), [1976] 3 W.W.R. 646, a decision of Disbery, J., of this court, sets down succinctly, in my respectful view, the applicable law. At p. 655 the learned trial judge stated: When persons enter into an interim agreement with the mutual understanding that such is to be followed by the preparation and execution of an agreement in final form, the question naturally arises as to whether the interim agreement itself is a valid enforceable contract or, on the other hand, is unenforceable and void for uncertainty because a further essential term or terms remain to be agreed upon by the parties for inclusion in the final agreement; or because the parties did not intend to be bound until they executed the final agreement. . . .