Where it is difficult to claim expectation loss - damages for reliance losses. Aim to put the claimant back in the position as if the contract had never been formed
May not always be a suitable remedy and will not be available when: 1. A contract involves a personal service, 2. Where the court cannot supervise the performance, 3. It is impossible to perform the obligations
An order of rescission means return of the parties to the position that they were in before the contract was made. Effect intended effect is that it is as if the contract never existed.
May not be possible where: 1. The claimant has affirmed the contract, 2. There was lapse of time, 3. Third party rights would be infringed, 4. Return to the pre-contractual position is not possible