| 2. Scope and Purpose. Subsection (b) [Maine cite subsection |
| (2)], like former Section 9-206, generally validates an agreement |
| between an account debtor and an assignor that the account debtor |
| will not assert against an assignee claims and defenses that it |
| may have against the assignor. These agreements are typical in |
| installment sale agreements and leases. However, this section |
| expands former Section 9-206 to apply to all account debtors; it |
| is not limited to account debtors that have bought or leased |
| goods. This section applies only to the obligations of an |
| "account debtor," as defined in Section 9-102 [Maine cite section |
| 9-1102]. Thus, it does not determine the circumstances under |
| which and the extent to which a person who is obligated on a |
| negotiable instrument is disabled from asserting claims and |
| defenses. Rather, Article 3 must be consulted. See, e.g., |
| Sections 3-305, 3-306. Article 3 governs even when the |
| negotiable instrument constitutes part of chattel paper. See |
| Section 9-102 [Maine cite section 9-1102] (an obligor on a |
| negotiable instrument constituting part of chattel paper is not |
| an "account debtor"). |