The assignment of the promise
33 This ground of appeal challenges the primary judge's finding that Mr Langbein's promise to SVP was assigned to MI.
34 Mr Langbein refers to six items of evidence which, he submits, prove that his promise to SVP was not assigned to MI. He submits that because these items do not refer to his warranty and/or were not directed to him, the warranty could not have been assigned.
35 The way I see it, it is only one of the items that requires to be examined, and construed in its proper context, namely the written assignment dated 27 April 2018 concluded between SVP as assignor and MI as assignee. That is the assignment relied on by MI, so it is to that assignment that one must look in answering the question whether the warranty was assigned. Mr Langbein points out that in the amended statement of claim (at [4]) MI listed both the deed of separation between SVP, MI and Mr Mottershead and the written assignment in the particulars to the paragraph which alleges the assignment of the debt and the warranty. That, however, does not detract from the fact that if there is an assignment of the warranty it arises from the written assignment of 27 April 2018, and nothing in the deed of separation which was concluded some nine months earlier contradicts that.
36 Mr Langbein points out that the deed of assignment does not refer to his promise and limits, at cl 1, the property to be assigned from SVP to MI to tax invoices issued by SVP to ASI and, at cl 2, to "all agreements … negotiated with ASI …". He submits that the warranty does not arise from the tax invoices and is not an agreement negotiated with ASI.
37 The terms of the deed of assignment are relevantly as follows:
1. [SVP] (Assignor) confirms that it has absolutely assigned to [MI] (Assignee) all of its right title and interest in and to the debts and choses in action described in the Schedule to this Notice (Debts & Choses in Action).
2. Confirms that it has passed and transferred the legal right to such Debts & Choses in Action to the Assignee together with all legal and other remedies for the same and the power to give a good discharge for the same without the concurrence of the Assignor.
…
Schedule
1. The debts due to the Assignor arising from the issue of the following Tax Invoices issued by the Assignor to [ASI]:
… [list of tax invoices]
2. All agreements, rights and entitlements relating directly or indirectly to such debts negotiated with [ASI] by Ross Philip Mottershead on behalf of the Assignor.
38 The text of the assignment, and in particular item 2 in the schedule, are wide enough to include a contractual promise made by Mr Langbein as the person who owned and controlled ASI to cause the debts to be paid. The debts are the debts reflected in the listed invoices. Also, it was Mr Mottershead (on behalf of SVP) who negotiated the warranty with Mr Langbein. Thus, the warranty is an agreement relating to the debts and it was negotiated by Mr Mottershead on behalf of the assignor (SVP).
39 Also, consideration needs to be given to the whole of the transaction and the surrounding circumstances known to the parties. As explained above, each of SVP and MI sought to achieve an outcome whereby there would be a complete parting of ways between them, any relationship with ASI going forward was to be in the hands of MI (as confirmed in the 28 July 2017 letter quoted above at [29]), and the recovery of ASI's debt would be MI's problem going forward. It must also be noted that MI paid SVP for ASI's debt to SVP.
40 It is also to be observed that it is impossible, as a matter of basic principle, to assign the benefit of a guarantee while retaining the benefit of the guarantee debt and thereby to convert the one debt owing by both principal debtor and guarantor to the one creditor into two debts, one owing by the principal debtor to the creditor and the other owing by the guarantor to the assignee: Hutchens v Deauville Investments Pty Ltd [1986] HCA 85; 68 ALR 367 at 373 per Gibbs CJ, Mason, Wilson, Brennan and Deane JJ citing International Leasing Corp Ltd v Aiken [1967] 2 NSWR 427 at 439 per Jacobs JA. There could thus not logically have been any intention not to assign the warranty.
41 It is inconceivable that, in those circumstances, SVP and MI intended that the debt would be assigned but that the possibility of recovery of that debt from Mr Langbein based on his warranty would not be. That does not, however, answer the question whether there was an objective expression of their positive intention to assign the warranty.
42 Mr Langbein refers to Property Builders Pty Ltd v Adelaide Bank Ltd [2011] NSWCA 266; 15 BPR 29,411 as authority for the proposition that assignment of the principal debt does not necessarily result in assignment of the guarantee. That much is uncontroversial. In that case the resolution of the creditor (assignor) which was relied on as effecting an assignment not only of the debt (which was an unpaid loan) but also of the guarantee was relevantly in these terms (see the judgment at [17]):
… the following loan was accepted to be transferred to [the assignee] …
43 It is unsurprising that that wording confined as it was to the "loan" was not interpreted to include the assignment of the guarantee (see the judgment at [47]-[53]). However, in the present case, as I have shown, the wording is quite different and in my view is broad enough to include the warranty.
44 MI relied not only on a legal assignment but also an equitable assignment. The principal requirement for the validity of an equitable assignment is an intention to assign - all that is required for an equitable assignment is a manifestation by the assignor of an intention to transfer the chose in action to the assignee in a manner binding upon the assignor: Shepherd v Commissioner of Taxation (Cth) [1965] HCA 70; 113 CLR 385 at 397 per Kitto J. In that regard, no particular form of words is necessary to create an equitable assignment: Cossill v Strangman [1963] NSWR 1695 at 1699 per Walsh J and AGC (Advances) Ltd v Commissioner of Taxation (Cth) [1975] HCA 7; 132 CLR 175 at 190 per Gibbs J (albeit in dissent).
45 The position was explained as follows by Blackburne J in Finlan v Eyton Morris Winfield (a firm) [2007] EWHC 914 (Ch); [2007] 4 All ER 143 at [33]:
[T]here must be some outward expression by the assignor of his intention to make an immediate disposition of the subject matter of the assignment. It must be possible to identify some act on the assignor's part from which his intention then and there to divest himself - in favour of the assignee - of the right or interest to be assigned, on the terms which have been agreed, can be inferred.
46 See more generally, Heydon JD, Heydon on Contract (Lawbook Co, 2019) at 532 [13.310].
47 In my view the act of assignment is clear - it is the written assignment that the assignor and assignee executed on 27 April 2018. Moreover, the intention that not only the debt of ASI but also Mr Langbein's promise that that debt would be paid were assigned is apparent from the wording and the context.
48 Those conclusions are further reinforced by the fact that SVP was joined as a respondent at first instance and in the appeal and did not contest the assignment. It filed a submitting appearance.
49 In the circumstances I am not satisfied that any error by the primary judge has been established. This ground of appeal must accordingly fail.