1. You have to first send him a cancellation notice stating your willingness not to proceed with the sale.
2. Immediately thereafter you have to return him the money.
3. However the buyer nevertheless can file a suit for specific performance of suit , more so, if there is no negliegnece on his part to complete the our-chase.
4. In such suits it is the discretion of the court whether to allow his prayer or to refuse it.