In each of the case above there is a contract violation observed, specific performance is valid only when there is a clause mentioned in the contract regarding specific performance or when the plaintiff agrees to settle it, in these cases nothing is mentioned about specific performance so the other party needs to agree or else the contract deal has to be performed because if a contract is prepared it cannot be cancelled or terminated at the will of any of the party. If it needs to be terminated then both the party should have to agree or else the court will decide the consequences.