An Award of Interest?
14The Respondents acknowledge that the Principal Judgment contemplated (at [218]) that they would be required to pay interest on the Benefit Sum. They submit, however, that there is no general rule that a borrower who derives an "unwarranted benefit" from a contract of loan that has been found to be unjust should be required to pay interest. Whether interest should be awarded to the lender depends upon whether or not, in the exercise of the Court's discretion under s 7 of the Act, the setting aside of an obligation to pay interest is required to avoid injustice flowing from the impugned contract.
15The Respondents contend, by analogy with cases on unjust enrichment, that it is only where a borrower derives a "notional gain" from the use of the funds advanced by the lender that interest should be awarded to the lender. In this case, so they argue, the Respondents did not derive any benefit from the funds advanced in the sense that they did not have use of the money, as it was paid directly to Ms Locke's companies. They rely on evidence which suggests that the Respondents would not have been able to persuade a "responsible lender" to refinance the Moranon and Flamanda Mortgages in November 2006. They also point out that at that time FMI assessed the market value of the Land at nearly $2.8 million. Thus if, in 2006, the Respondents had repaid the moneys due under the Moranon and Flamanda Mortgages by liquidating their assets, they would at least have been able to retain Lot 8 which was then valued at $1,030,000. If, however, they are now obliged to pay interest to FMI on the Benefit Sum, they will be about $1 million worse off than if they had cut their losses in 2006 (although the Respondents accept that this proposition assumes that the Land has not increased significantly in value since that time, a matter as to which there is no evidence).
16The Respondents further submit that they were not at fault and that it was FMI's wrongful conduct that caused it to lose the Benefit Sum. These factors, so it is said, should be taken into account in determining whether they should be ordered to pay interest on the Benefit Sum.
17The Principal Judgment upheld (at [164]) the primary Judge's finding that the FMI Mortgage was unjust within the meaning of s 7(1) of the Act. However, the Court applied (at [167]-[168]) the principle that the remedies available to the Respondents were limited to those necessary to avoid the unjust consequences of the FMI Mortgage. The Court held (at [185], [189]) that his Honour erred in declaring the FMI Mortgage wholly unenforceable. One ground for that holding was that his Honour had failed to give appropriate weight to the Respondents' use of the Benefit Sum to discharge the Flamanda and Moranon Mortgages.
18The Principal Judgment specifically found (at [216]) that the Respondents derived benefits from the discharge of both the Moranon and Flamanda Mortgages and that any grant of relief should require them to account for the Benefit Sum. In the light of this finding, it is not now open to the Respondents to resist a form of relief that requires them to pay interest, on the ground that they derived no "gain" from using the Benefit Sum to discharge the Flamanda and Moranon Mortgages. The Respondents' contention, in effect, is a further attempt to reopen the Primary Judgment. Similarly, it is not open to the Respondents to resist a requirement that they pay interest on the Benefit Sum as a condition of relief on the ground that they were not at fault. The findings made by the Court did not depend upon any attribution of fault to the Respondents.
19On the findings made in the Principal Judgment, the Respondents received a benefit (or "gain") in November 2006, when they used part of the funds advanced by FMI to discharge the Flamanda and Moranon Mortgages. If the Respondents are to account to FMI for the Benefit Sum as the Principal Judgment contemplates (at [216]), it is appropriate that they be required to account for interest on the Benefit Sum. During the period between November 2006 and the date of this judgment not only has FMI been denied the use of the Benefit Sum, but the Respondents have been relieved of what otherwise would have been their obligation to pay interest under the Flamanda and Moranon Mortgages (unless they chose to discharge the Mortgages from their own resources).
20In short, it is not necessary in order to avoid the unjust consequences of the FMI Mortgage that the Respondents be relieved on an obligation to pay interest on the Benefit Sum. This conclusion is consistent with the reasoning of the High Court in Maguire v Makaronis [1997] HCA 23; 188 CLR 449 at 476-477 (Brennan CJ, Gaudron, McHugh and Gummow JJ), applied in the context of the Act by this Court in Elkofairi v Permanent Trustee Co Ltd [2002] NSWCA 413; 11 BPR 20,841 at [80]-[85] (Beazley JA, Santow JA and Campbell AJA agreeing).