Undue influence in the context of mortgage litigation is an equitable doctrine (a rule or principle of fairness) which may be relied upon as a defence to the enforcement of a mortgage. Similar principles apply in respect of other vitiating circumstances, such as misrepresentation. The problem with it is that it has become extraordinarily complicated and has given rise to a substantial amount of caselaw.
It typically arises where a wife is asked to put up her share of the family home as security for her husband’s business borrowings. If the husband resorts to unacceptable force or coercion in order to procure the wife’s entry into the transaction, or abuses the trust and confidence she may have placed in him to look after their financial affairs, the court may relieve the wife of liability and set the transaction aside.
The cases draw a distinction between two types of undue influence:
(1) Actual undue influence – which involves the actual use of oppression or domination; and
(2) Presumed undue influence – where the law will presume that a particular transaction between parties standing in a particular relationship is the result of undue influence. There are two categories:
(a) A relationship which is recognised in the law as giving rise to a presumption of undue influence (e.g. parent and child, solicitor and client, but not husband and wife); and
(b) A relationship which on its particular facts gives rise to a presumption of undue influence (where it is shown that one person reposed trust and confidence in the other).
The categories were identified in BCCI v Aboody [1990] 1 QB 923 at 953 per Slade LJ and were followed by the House of Lords in Barclays Bank plc v O’Brien [1994] 1 AC 180. In Royal Bank of Scotland Plc v Etridge (No.2) [2002] 2 AC 773 the House of Lords preferred to move away from rigid adherence to the distinct categories of undue influence and recognised that undue influence of whatever type was ultimately a matter of proof on the particular facts of each case, and that the presumptions were merely an evidential tool. In practice, they are still referred to and relied upon.
It is important to recognise that the categories of undue influence are not closed. The principles are evolving and adapting to changing circumstances, and some of the traditional elements of undue influence are being subsumed into others.
Many of the cases involve three parties: (1) a lender as mortgagee, (2) a husband as borrower and joint mortgagor, and (3) his wife, as joint mortgagor and surety, with the undue influence invariably being exercised by the husband over the wife. In these cases, the law has to find some basis on which the mortgage may be susceptible to being set aside as against a lender, whose knowledge of the circumstances in which the wife is being asked to enter to the mortgage may vary considerably. So, when will a lender be put on notice?
The usual form of relief sought is a declaration that the particular loan/security documents have been procured by undue influence and for an order that they be set aside or rescinded (usually in whole rather than in part, as for example where the court set aside a legal charge notwithstanding that the wife thought it was limited to a maximum liability of £15,000: TSB Bank Plc v Camfield [1995] 1 WLR 430).
Rescission is an equitable remedy and may be subject to the usual bars to relief, such as affirmation, estoppel or delay. These expressions are not uniformly used and there is considerable overlap. The essential ingredient is that it would be inequitable to allow the influenced party to set aside the transaction (Goldsworthy v Brickell [1987] Ch 378 per Parker LJ at 416H). It is not necessary that the influenced party who it is alleged has affirmed the particular transaction is aware of her rights. The real test is whether it is just in all the circumstances that the affirmation be held against her (Habib Bank Ltd v Tufail [2006] EWCA Civ 374 per Lloyds LJ at [22]; Kanda v City & County Properties [2006] EWHC 3689 (Ch)). Ordinarily, the influenced party will not be barred from relief so long as the influence continues (Allcard v Skinner (1887) 36 Ch D 145).
In terms of alternative remedies for the lender, as in the case of forgery, where a mortgage is set aside for undue influence as between the wife and lender, the lender still retains an effective equitable charge over the husband’s beneficial interest, and subject to consideration of the matters in s 15(1) Trusts of Land and Appointment of Trustees Act 1996, including the interest of a secured lender under s 15(1)(d), the court may be minded to order sale (First National Bank Plc v Achampong [2003] EWCA Civ 487; Thompson v Foy [2009] EWHC 1076 (Ch) per Lewison J at [145]; Santander UK Plc v Fletcher [2018] EWHC 2788 (Ch)).
Alternatively, the lender may sue the husband for a money judgment which it can enforce by a charging order or bankruptcy (leaving it to the trustee in bankruptcy to seek a sale of the property under s 335A Insolvency Act 1986): Zandfarid v BCCI [1996] 1 WLR 2420; Alliance & Leicester Plc v Slayford [2001] 1 All ER (Comm) 1.
Similarly, the lender may also have a claim based on subrogation (Cheltenham & Gloucester Plc v Appleyard [2004] EWCA Civ 291), and as to this the lender may need to be alert to the possibility that the wife may also seek to avoid liability to a subrogated charge also on the grounds of undue influence, leaving the lender to pursue sub-subrogation (UCB Group Ltd v Hedworth [2003] EWCA Civ 1717). Where a mortgage which is liable to be set aside for undue influence is replaced by a later mortgage to the same lender, in circumstances where the two mortgages could be regarded as inseparably connected, the lender will be fixed with constructive notice of the invalidity of the earlier mortgage, and notice of the comparable invalidity of the later mortgage (Yorkshire Bank Plc v Tinsley [2004] 1 WLR 2380).
The burden of proving undue influence is upon a complainant. He or she may discharge the burden by proving sufficient facts giving rise to a plea of actual undue influence, or at least sufficient facts giving rise to a presumption of undue influence, which, in the usual husband and wife cases, requires proof of trust and confidence, and a transaction which calls for an explanation, in which case the burden shifts to the husband to rebut the presumption (Royal Bank of Scotland Plc v Etridge (No.2) [2002] 2 AC 773 per Lord Nicholls at [13]-[14]). The burden of proving a bar to relief is on the mortgagee and will need to be properly pleaded Habib Bank Ltd v Tufail [2006] EWCA Civ 374 per Lloyd LJ at [21]; Goldsworthy v Brickell [1987] Ch 378 per Nourse LJ at p 411B).
A complainant who wishes to rely on undue influence by way of defence and counterclaim in enforcement proceedings (in practice, a plea of undue influence is usually only raised by way of defence and counterclaim to a mortgagee’s claim for possession, although there is nothing to stop a complainant from commencing proceedings for declaratory and consequential relief) will need to plead sufficient facts and matters in support (CPR PD 16, para 8.2). As in the case of forgery, while it is open to a claimant mortgagee to file a reply to the defence and a defence to the counterclaim, if he wishes to seek alternative relief, he will need to apply for permission to amend the claim form and particulars of claim (CPR 17.1 (unless he obtains the written consent of all the other parties)), and for consequential directions (CPR 17.3).