N.D. Cent. Code § 41-09-113

(6) Transfer of Collateral to Secondary Obligor. It is possible for a secured party to transfer collateral to a secondary obligor in a transaction that is a disposition under Section 9-610 and that establishes a surplus or deficiency under Section 9-615. Indeed, this Article includes a special rule, in Section 9-615(f), for establishing a deficiency in the case of some dispositions to, inter alia, secondary obligors. This Article rejects the view, which some may have ascribed to former Section 9-504(5), that a transfer of collateral to a recourse party can never constitute a disposition of collateral which discharges a security interest. Inasmuch as a secured party could itself buy collateral at its own public sale, it makes no sense to prohibit a recourse party ever from buying at the sale.

(7) Timing and Scope of Obligations. Under subsection (a), a recourse party acquires rights and incurs obligations only “after” one of the specified circumstances occurs. This makes clear that when a successor assignee, transferee, or subrogee becomes obligated it does not assume any liability for earlier actions or inactions of the secured party whom it has succeeded unless it agrees to do so. Once the successor becomes obligated, however, it is responsible for complying with the secured party’s duties thereafter. For example, if the successor is in possession of collateral, then it has the duties specified in Section 9-207.