Relevant legal principles
8The principles to be applied by the court in determining whether to order removal of a caveat under s 74MA are the same as those the court applies in determining whether a caveat should be extended under s 74K. In each case, the question is whether an interlocutory injunction would be granted to protect the interest claimed in the caveat. That, in turn, raises two questions. The first is whether there is a serious question to be tried concerning the interest claimed in the property that is sought to be protected. The second is whether the balance of convenience is in favour of maintaining the caveat: see Buchanan v Crown & Gleeson Business Finance Pty Ltd [2006] NSWSC 1465 at [6] per Brereton J; Lew v Bluescope Distribution Pty Ltd [2010] NSWSC 794 at [5] per Pembroke J; Bayblu Holdings Pty Ltd v Capital Finance Australia Ltd [2011] NSWCA 39 at [19] per Campbell JA. Although the application is brought by the party seeking to remove the caveat, it is the caveator who bears the onus of proving that there is a serious question to be tried and that the balance of convenience favours a continuation of the caveat: Buchanan v Crown & Gleeson Business Finance Pty Ltd [2006] NSWSC 1465 at [6] per Brereton J.
9It is not possible to list all the factors relevant to the balance of convenience. Each case must be considered on its own merits. However, three particularly important factors should be mentioned. The first is whether the caveat prevents the registered proprietor or a person whose title is clearly superior from the legitimate exercise of rights in respect of the land, such as the rights of the registered proprietor to sell or refinance the land in appropriate circumstances or the rights of a first mortgagee to exercise its security: Warner v Andrews [2011] NSWSC 956 at [11] per Brereton J. The second is whether removal of the caveat will derogate from the caveator's claim. In relation to this factor, Brereton J said in Warner v Andrews [2011] NSWSC 956 at [11]:
[I]t is a rare case indeed, if there is any, that a valid caveat will be removed for reason of balance of convenience, if that will result in a derogation of priority of the caveator's claim ...
A third "highly relevant" factor is the adequacy of the undertaking as to damages: Szanto v Bainton [2011] NSWSC 278 at [3] per White J.
10In applying these principles to this case, however, it must also be remembered that what the first defendant in effect seeks to do is vary consent orders already made by the court - that is, the orders permitting the plaintiff to lodge the caveat under s 74O of the Act in return for his undertaking as to damages.
11In Brimaud v Honeysett Instant Print Pty Ltd (1988) 217 ALR 44 at 46, McLelland J said:
The overriding principle governing the approach of the court to interlocutory applications is that the court should do whatever the interests of justice require in the particular circumstances of the case.
As his Honour went on to point out, in applying that overall principle, rules of practice have been developed in accordance with which the court will generally act in particular circumstances. One such rule of practice is that, where interlocutory orders of a substantive nature have been made following a contested hearing in contemplation that they will operate until the final disposition of the hearing, the court will not generally vary those orders unless it is satisfied that circumstances have changed so as to justify the variation or the applicant has discovered new material which could not reasonably have been put before the court at the hearing of the original application.
12The position is not as clear where, as in this case, the original interlocutory orders were made by consent. One question that arises in relation to consent orders is whether they operate as an agreement between the parties and, if so, whether that agreement restricts the circumstances in which the orders can be varied subsequently. As Lord Denning MR explained in Siebe Gorman & Co Ltd v Pneupac Ltd [1982] 1 WLR 185 at 189:
It should be clearly understood by the profession that, when an order is expressed to be made "by consent," it is ambiguous. There are two meanings to the words "by consent." ... One meaning is this: the words "by consent" may evidence a real contract between the parties. In such a case the court will only interfere with such an order on the same grounds as it would with any other contract. The other meaning is this: the words "by consent" may mean "the parties hereto not objecting." In such a case there is no real contract between the parties. The order can be altered or varied by the court in the same circumstances as any other order that is made by the court without the consent of the parties.
In the case of interlocutory consent orders which are expressed to operate "until further order", it is clear that the parties must be taken to have agreed that it was open to either of them to make an application to vary those orders. But even in the absence of those words, the parties will normally be presumed not to have intended to displace the court's power to vary interlocutory orders. As Woodward and Foster JJ said in R D Werner & Co Inc v Bailey Aluminium Products Pty Ltd (1988) 18 FCR 389 at 390-1:
It is convenient to begin by considering whether there was in fact a binding contract between the parties expressed by the consent order, or whether this was one of the frequent cases in which an interlocutory order is made on the application of one party with the other party or parties consenting - in the sense of not objecting - but without there being any intention of entering into a formal and binding contract; see Siebe Gorman & Co Ltd v Pneupac Ltd [1982] 1 WLR 185 at 189; 1 All ER 377 at 380. Courts are very familiar with the circumstance in which parties reach an agreement, either after a good deal of negotiation or perhaps quite readily, about the orders that should be made for the future conduct of an action. We would be most reluctant to reach any conclusion which tended to inhibit the ready consent of practitioners to the making of sensible arrangements in such cases. It would normally be understood by them that, if circumstances arose which made it necessary, they would be entitled to apply to the court for a variation of the orders to which they had consented. No doubt the fact of their consent would be a relevant consideration for the court in deciding whether to order a variation, but it would be understood by all that the ultimate decision was in the court's hands.
See also Short v Crawley (No 42) [2009] NSWSC 1110 at [55] per White J.
13Another question that arises in relation to consent orders is whether the normal rules of practice apply to applications to vary them. In Council of Shire of Warringah v Industrial Acceptance Corporation (Supreme Court of New South Wales, 22 November 1979, unreported), McLelland J said:
The circumstances in which an interlocutory injunction may be granted or an interlocutory undertaking given may differ widely. However, where the parties agree upon the manner in which an application for interlocutory relief is to be disposed of and relief is granted pursuant to that agreement, whether by way of injunction or the acceptance by the Court of an undertaking, without any contest, any subsequent application for the variation of that relief must be approached on the basis of what justice requires as between the parties. In the normal case this will depend in large measure upon what was in their mutual contemplation at the time the original relief was agreed to.
...
The obligation under the form of undertakings (both to the Court and to the other party) agreed to in each case is expressed to endure "until further order of the Court". In the absence of any countervailing circumstances and of any reference to the final hearing of the proceedings, I take this phrase to express the mutual contemplation by the parties that at some time pending the final hearing of the proceedings the question of whether the second defendant should continue to be restrained from selling or completing any contract of sale of its land might properly be submitted for determination by the Court, such determination to supersede the agreed undertakings.
14Whether the words "until further order" are sufficient to displace the normal principles that apply to the variation of substantive interlocutory orders is doubtful following the decision of the High Court in Adam P Brown Male Fashions Pty Ltd v Philip Morris Inc (1981) 148 CLR 170. In that case, Philip Morris had applied for an interlocutory injunction. After 5 days of hearing and when the application was still part heard, Adam P Brown offered an undertaking "pending the hearing and determination of the action or until further order" which Philip Morris accepted. Later, Adam P Brown applied to vary the undertaking it had given. Smithers J permitted it to do so. That decision was reversed by majority of the Full Court following an appeal by Philip Morris. Adam P Brown then appealed to the High Court. The High Court reversed the Full Court's decision. It did so on the ground that the circumstances did not warrant interference with the trial judge's discretion by the Full Court. In doing so, Gibbs CJ, Aickin, Wilson and Brennan JJ stated the applicable principle in these terms:
Just as an interlocutory injunction continues "until further order", so must an interlocutory order based on an undertaking. A court must remain in control of its interlocutory orders. A further order will be appropriate whenever, inter alia, new facts come into existence or are discovered which render its enforcement unjust ... Of course, the changed circumstances must be established by evidence ... (at 178).
15This passage suggests that the normal rules of practice applying to a variation of substantive consent orders (which require a change in circumstances or the discovery of new material) apply even in the case of consent orders expressed to apply "until further order". It is true that the orders in Adam P Brown were expressed to apply "pending the hearing and determination of the action or further order", whereas McLelland J's comments were concerned with a case where there was no reference to the final hearing. However, in my opinion, the two cases are not distinguishable on that ground. The plurality in Adam P Brown, in stating the principle in the terms that it did, made no reference to the fact that the orders were expressed to be orders pending the determination of the proceedings (or further order). Moreover, as the plurality pointed out, interlocutory orders generally are implicitly, if not explicitly, made until further order. Consequently, it is difficult to read a great deal into the fact that the parties have made explicit what is already implicit.
16It is clear, however, that the undertakings given in Adam P Brown were given in order to resolve what had become a lengthy contested interlocutory hearing. The parties must have intended the compromise they had reached to continue to apply until the disposition of the proceedings; and in those circumstances it is to be expected that the compromise the parties reached would be treated in the same way as an order of the court following a contested hearing. That explains why the plurality stated the relevant test in the terms that it did. I do not, however, read the plurality's judgment as rejecting the general approach adopted by McLelland J - namely, that whether it is in the interest of justice to vary consent orders depends in large measure on what was in the mutual contemplation of the parties at the time the original orders were made. Where no compromise is involved and a party simply consents to interlocutory orders, it can be more readily be inferred that that consent was not intended to operate for an indefinite period of time.