“The creditor could sue the debtor, sell the mortgage securities or sue the surety. All these remedies could be exercised at any time or times simultaneously or contemporaneously or successively or not at all. If the creditor chose to sue the surety and not pursue any other remedy, the creditor on being paid in full was bound to assign the mortgaged securities to the surety. If the creditor chose to exercise his power of sale over the mortgaged security he must sell for the current market value but the creditor must decide in his own interest if and when he should sell. …….. No creditor could carry on the business of lending if he could become liable to a mortgagor and to a surety or either of them for a decline in value of mortgaged property, unless the creditor was personally responsible for the decline.”
“Several centuries ago equity evolved principles for the enforcement of mortgages and the protection of borrowers. The most basic principles were, first, that a mortgage is security for the payment of a debt and, secondly, that a security for the repayment of a debt is only a mortgage. From these principles flowed two rules, first, that powers conferred on a mortgagee must be exercised in good faith for the purpose of obtaining repayment and, secondly, that, subject to the first rule, powers conferred on a mortgagee may be exercised although the consequences may be disadvantageous to the borrower.”
“Those cases [which included the China South Sea Bank case and the Downsview Nominees case] establish or re-affirm that a mortgagee’s duty to the mortgagor or to a surety depend partly on the express terms on which the transaction was agreed and partly on duties (some general and some particular) which equity imposes for the protection of the mortgagor and surety. The mortgagee’s duty is not a duty imposed under the tort of negligence, nor are contractual duties to be implied. The general duty (owed both to subsequent encumbrancers and to the mortgagor) is for the mortgagee to use his powers only for proper purposes, and to act in good faith ….. the specific duties arise if the mortgagee exercises his express or statutory powers ……… If he exercises his power of sale, he must take reasonable care to obtain a proper price.”
“(g) The mortgagee can sell when it likes, even though a better price might be obtained if it waits, and even if the result of an immediate sale may be that instead of there being a surplus for the mortgagor the purchase price is only sufficient to discharge the mortgage debt: the Cuckmere Brick Co.Ltd. case [1971] 2 AER 633 at 646,[1971] Ch.949 at 969; Tse Kwong Lam’s case [1983] 3 AER 54 at 59.[1983] 1 WLR 1349 at 1355. (h) The fact that the mortgagee can sell when it likes does not mean that it can ignore the consequences that a short delay might result in a higher price, and the bank and the receivers must fairly and properly expose the property in the market (cf the Cuckmere Brick Co.Ltd. case [1971] 2 AER 633 at 654,[1971] Ch.949 at 979, the Standard Chartered Bank case [1982] 3 AER 938,[1982] 1 WLR 1410 ) …………”