Conveyancing — Contract for sale — Rescission — Where purchaser issued s 66L notice — Whether land substantially damaged — Whether damage rendered land materially different from that which purchaser contracted to buy — Where materials deposited on land by a stranger to the contract may or may not have contained asbestos — Where vendor’s cleaning up the land resulted in removal of topsoil LAND LAW — Conveyancing — Contract for sale — Deposit — Where rescission valid — Whether vendor entitled to retain deposit — Whether clause requiring a further “deposit” upon termination constituted a penalty EQUITY — Equitable remedies — Orders for judicial sale out of court — Whether court should exercise discretion for sale — Where no evidence of hardship and that the sale would prejudice the existing owner