20. We turn now to the applicability of NMSA 1978, § 55-9-318 (1985)—the primary issue in this case. We address Section 55-9-318(4) first. It provides:
A term in any contract between an account debtor and an assignor is ineffective if it prohibits assignment of an account or prohibits creation of a security interest in a general intangible for money due or to become due or requires the account debt- or’s consent to such assignment or security interest.
Having already determined that the transaction between Hilfiker and KBK was intended to, and did create a security interest, Section 55-9-318(4) nullifies paragraph five of the Purchase Order to the extent it seeks to disallow assignments for purposes of creating a security interest in the account. Thus, Hilfiker’s assignment to KBK of its account with Hasse is unaffected by Hasse’s attempted limitation. Id. cmt. 4.
21. The more difficult, and interesting, question is presented by Section 55-9-318(1) which provides:
Unless an account debtor has made an enforceable agreement not to assert defenses or claims arising out of a sale as provided in Section 9-206 [55-9-206 NMSA 1978] the rights of an assignee are subject to:
(a) all the terms of the contract between the account debtor and assignor and any defense arising therefrom; and
(b) any other defense or claim of the account debtor against the assignor which accrues before the account debtor receives notification of the assignment.
Section 55-9-318(1) recognizes the general common-law rule that an assignee’s interest is subject to all conditions, contingencies, limitations, defenses, and/or set-offs which may be asserted by the account debtor against the assignor. See Associates Loan Co. v. Walker, 76 N.M. 520, 522-23, 416 P.2d 529, 530-31 (1966); see also § 55-9-318 cmt. 1.
22.Hasse asserts that it has at least two defenses against Hilfiker’s claim for payment: (1) Hilfiker’s delegation to Gosney of its obligation to perform under the purchase order was in breach of paragraph five of the Purchase Order; and (2) Hilfiker has a duty under paragraph one and three of the Purchase Order to pay, or assure payment to, its materialmen and suppliers before Hasse is required to pay Hilfiker.
23. KBK does not respond directly to Hasse’s and Gosne/s argument under Section 55-9-318(1). That is, it does not assert that as a secured creditor with a perfected security interest upon which it has foreclosed through self-help measures, it takes Gosney’s rights to payment free and clear of any defenses or set-offs Hasse might assert. KBK argues only that there has been no breach and that there are no defenses or set-offs upon which Hasse can rely.
24. We believe Hilfiker’s involvement of a third party to perform work for the project, and its failure to pay its supplier Gosney, carry implications for KBK’s claim, though not precisely for the reasons argued by the parties.
25. We agree with the essence of KBK’s position as to the first asserted breach described above. Paragraph five of the Purchase Order does seek to prohibit Hilfiker from assigning the Purchase Order or “any interest therein” without consent from Hasse. For purposes of this discussion, we assume Hasse meant to prevent its subcontractors from delegating their obligation to perform, even if there was no intent or attempt to escape their ultimate duty under the Purchase Order. Hilfiker’s arrangement with Gosney can be viewed as at least a technical breach of paragraph five.
26. However, there is no contention that Hasse did not receive acceptable performance from Hilfiker, albeit through its supplier Gosney. Thus, Hasse would not have any basis on this record to refuse payment simply because someone other than Hilfiker did the actual work. In addition, Hilfiker’s technical non-compliance with the Purchase Order did not result in anything other than nominal damage to Hasse. See Restatement (Second) of Contracts § 346 (1981); 5 Arthur Linton Corbin, Corbin on Contracts § 1003 (1964). Absent Hilfiker’s insolvency, and Hasse’s knowledge that Gosney would not be paid by Hilfiker or KBK, Hilfiker would have