Is this kocher? House price advertised for $600K. Buyer agrees to pay full purchase price but insists on a side agreement that the vendor will allow a rebate of $40K at settlement. Although they have to pay stamp duty on the full $600K thereby satisfying OSR, their argument is that the bank only sees a contract with $600K (not the side agreement) on it and thereby does their valuation based on $600K allowing the purchaser to actually buy the property for very little money down. Question is have they defrauded the bank by not fully disclosing all material matters affecting the transaction?