Deed Execution After Contractual Date Passed

A contract stipulated that a party would convey a property upon the full payment of the purchase price, with the agreement including a clause mandating the seller to execute the final deed upon demand after a specified date, but the seller subsequently refused to sign the deed, claiming the buyer had not made all due payments. The court upheld the lower court's decision to reject the seller's defense, reasoning that the obligation to sign the final deed was no longer conditional upon the buyer proving payment at that stage, as the stipulated date for execution had passed, thereby rendering the obligation pure and simple, and the seller's refusal constituted a breach of the contractual commitment.