CONSIDERATION ON APPEAL
17 At the outset, one may respectfully observe that the case presented before the primary judge was complicated, perhaps unduly, by the focus of the parties upon equitable liens and the significance of the factual circumstances surrounding the lenders' acknowledgement. As to this latter point, if, as we consider to be the case, the conclusion that the lenders' acknowledgement had the effect attributed to it by the primary judge is sufficiently supported by the text and subject matter of the acknowledgement, there is no need for Gunns to pray in aid surrounding circumstances such as the subjective appreciation of either Gunns or the lenders of the extent of Gunns' vulnerability upon consenting to the registration of the lenders' mortgage.
18 By the terms of the acknowledgement, the lenders expressly agreed to do what was necessary on their part to give effect to the contract between Gunns and Dingemanse. The lenders' obligations under cl 3 of the acknowledgement were unqualified and unconditional. Clause 3 of the acknowledgement imposed on the lenders an obligation which was expressly not limited to acts which were apt to enable a transfer to Gunns to occur. Facilitating the completion of the sale might have been a purpose, even the primary purpose of the acknowledgement, but stating that purpose did not exhaust the content of what was actually agreed in broader terms. The promise was to do acts necessary to "give effect to the contract", not merely to enable the contract to be completed or to give effect to part of the contract. Nor, so far as the lenders' minimum equity approach is concerned, was the acknowledgement limited to compensating Gunns for any loss suffered in relation to its contract with Dingemanse.
19 To say these things is simply to give effect to the express terms of cl 3 of the acknowledgement and cl 24.1 of the contract between Gunns and Dingemanse. It is not necessary to seek support for such an interpretation of cl 3 of the acknowledgement in the circumstances surrounding the acknowledgement.
20 It must be accepted that it is to read too much into the lenders' acknowledgement to treat the lenders as guarantors of Dingemanse's contractual obligations to Gunns. The lenders' promise "to do all acts that are necessary" is distinctly not apt to include a promise to pay money if Dingemanse failed to perform its obligations. Further, the acknowledgement cannot be read as if the lenders had promised to stand behind Dingemanse to the extent of making all their substance (and not merely their rights over the land) available to satisfy Dingemanse's obligations to Gunns. Having regard to the subject matter of the acknowledgement, it is apparent that the lenders' promise to "do all acts that are necessary … to give effect to the Contract" is necessarily concerned with acts which are within the lenders' power as mortgagees of the land. Accordingly, the expression "acts that are necessary … to give effect to the Contract" can only be understood as "acts which the lenders are empowered by their mortgage to undertake in respect of the land that are necessary to give effect to the Contract".
21 By virtue of cl 24.1 of Gunns' contract with Dingemanse, Gunns' contractual entitlements against the lenders included the repayment by Dingemanse of the purchase price under the contract with Gunns. The effect of the language of the acknowledgement is that funds realised from the sale of Dingemanse's property by the exercise by the lenders of their powers as mortgagees of the land are monies which the lenders must appropriate to Gunns' entitlement to repayment of the purchase price by Dingemanse. Any other appropriation would be contrary to the lenders' promise to Gunns that the lenders will do all things necessary in the exercise of their powers with respect to the land to give effect to Gunns' rights under its contract with Dingemanse.
22 For these reasons we have concluded that the true extent of the lenders' obligations to Gunns can be gleaned from the terms of the contractual promises made to Gunns by the lenders in the acknowledgement in return for Gunns' agreement to facilitate the lenders' acquisition of legal rights as mortgagees of the land. That being so, it is unnecessary to decide whether the challenged finding concerning Gunns' appreciation of this aspect of their situation should stand.
23 It was argued on behalf of the lenders that clear words would be required to achieve such a result. In our respectful opinion, the effect which we attribute to the terms of the acknowledgement is not surprising or uncommercial. On the contrary, the meaning which emerges from a consideration of the terms of the acknowledgement accords with the reasonable commercial expectation that Gunns' interests under its contract would not be adversely affected by its consent to the registration of the lenders' mortgage.
24 The view we have taken of the effect of the acknowledgement based on the text and subject matter of the acknowledgement reflects the reasonable commercial expectation that the lenders, in looking to the land the subject of their mortgage for the repayment of their advances to Dingemanse, should not impede the enforcement of Gunns' rights vis-à-vis Dingemanse so that Gunns' position under its contract with Dingemanse would not be prejudiced by Gunns' consent to the registration of the mortgage in favour of the lenders.
25 If Gunns had not consented to the registration of the lenders' mortgage in return for the acknowledgement, Gunns could have obtained an injunction prohibiting any disposition of the land, or any interest in it, inconsistent with its rights. It could also have obtained an order that Dingemanse transfer the portion to which Gunns was entitled once all necessary conditions had been satisfied. Such orders would have been made in order to protect Gunns' contractual rights, having regard to the important circumstance that Gunns had paid the purchase price: Brown v Heffer (1967) 116 CLR 344 at 349-350; Chang v Registrar of Titles (1976) 137 CLR 177 at 184-185. Furthermore, if Gunns lawfully terminated its contract with Dingemanse, and sought recovery of the purchase price from Dingemanse, a court would have made the repayment of the purchase price by Dingemanse a condition of releasing Dingemanse from the injunction prohibiting it from disposing of the land, or any interest in it, to any other person: Davies v Littlejohn (1923) 34 CLR 174 at 185-186; Hewett v Court (1983) 149 CLR 639 at 645.
26 It will also be apparent that there is no occasion to limit the relief available to Gunns by reference to the minimum equity necessary to protect Gunns from an ultimate shortfall in its recovery from Dingemanse. The relief to which Gunns was entitled is to be measured by reference to the lenders' promise, not proven loss suffered by Gunns.
27 The lenders do not dispute that the provisions of the LTA, which confer indefeasibility and paramountcy on registered mortgages, do not bring about a different conclusion. They are right to make this concession. It is well-established that the provisions of the LTA do not relieve registered proprietors or mortgagees of land under the Act of their own personal obligations: see Loke Yew v Port Swettenham Rubber Co Ltd [1913] AC 491 at 504-505; Breskvar v Wall (1971) 126 CLR 376 at 384 -385; Bahr v Nicolay (No 2) (1988) 164 CLR 604 at 613; 638; 653-654. Contractual obligations are, of course, a strong example of such personal obligations. Whatever the ramifications of the termination of the contract between Gunns and Dingemanse for any equitable lien which Gunns might otherwise have enjoyed in respect of the land, and whether or not that lien operated in respect of the whole of Dingemanse's land or only the proposed Lots 1 and 2, the contractual rights enjoyed by Gunns against the lenders by virtue of the acknowledgement continued to operate with respect to Gunns' accrued rights under cl 24 of its contract with Dingemanse. These rights remained enforceable (and to be given "effect" by the lenders) notwithstanding the termination of that contract: see McDonald v Dennys Lascelles Ltd (1933) 48 CLR 457 at 476-477.
28 It will be apparent that we have concluded that the lenders' appeal is bound to fail even if the lenders' contention, that reference to the surrounding circumstances to construe the acknowledgement was not permissible, is accepted. Having regard to our conclusion that the scope of the expression can be understood without recourse to the controversial circumstances adverted to by the primary judge, there is no occasion for this Court to consider more closely the guidance afforded by the recent decision of the High Court in Western Export Services Inc v Jireh International Pty Ltd [2011] HCA 45 and its earlier decisions in Pacific Carriers Ltd v BNP Paribas (2004) 218 CLR 451 at [22], Toll (FGCT) Pty Ltd v Alphapharm Pty Ltd (2004) 219 CLR 165 at [40], and Codelfa Construction Pty Ltd v State Rail Authority of New South Wales (1982) 149 CLR 337 at 352, or the correctness of the decision in Lion Nathan Australia Pty Ltd v Coopers Brewery Ltd (2006) 156 FCR 1 esp at 53.
29 Accordingly, the lenders' application for leave to appeal should be dismissed on the basis that the issue sought to be raised thereby can have no material bearing on the merits of the appeal.
30 It should also be noted that counsel for Gunns accepted that orders sufficient to vindicate Gunns' rights under its contract with the lenders did not need to be based upon an equitable lien in Gunns.