5. While it is not likely that a transfer by the lessor of its right to payment under the lease contract would impair at a future time the ability of the lessee to obtain the performance due the lessee under the lease contract from the lessor, if under the circumstances reasonable grounds for insecurity as to receiving that performance arise, the lessee may employ the provision of this Article for demanding adequate assurance of due performance and has the remedy provided in that circumstance. Section 2A-401.

6. Sections 9-206 and 9-318(1) through (3) also are relevant. Section 9-206 sanctions an agreement by a lessee not to assert certain types of claims or defenses against the lessor's assignee. Section 9-318(1) through (3) deal with, among other things, the other party's rights against the assignee where Section 9-206(1) does not apply. Since the definition of contract under Section 1-201(11) includes a lease agreement, the definition of account debtor under Section 9-105(1)(a) includes a lessee of goods. As a result, Section 9-206 applies to lease agreements, and there is no need to restate those sections in this Article. The reference to "defenses or claims arising out of a sale" in Section 9-318(1) should be interpreted broadly to include defenses or claims arising out of a lease inasmuch as that section codifies the common law rule with respect to contracts, including lease contracts.

7. 3. Subsection (4) (3) is based upon Section 2-210(2) and Section 9-318(4) 9-406 [Maine cite section 9-1406]. It makes unenforceable a prohibition against transfers of certain rights to payment or a provision making the transfer an event of default. It also provides that such transfers do not materially impair the prospect of obtaining return performance by, materially change the duty of, or materially increase the burden or risk imposed on, the other party to the lease contract so as to give rise to the rights and remedies stated in subsection (5) (4). Accordingly, a transfer of a right to payment cannot be prohibited or made an event of default, or be one that materially impairs performance, changes duties or increases risk, if the right is already due or will become due without further performance being required by the party to receive payment. Thus, a lessor can transfer the right to future payments under the lease contract, including by way of a grant of a security interest, and the transfer will not give rise to the rights and remedies stated in subsection (5) (4) if the lessor has no remaining performance under the lease contract. The mere fact that the lessor is obligated to allow the lessee to remain in possession and to use the goods as long as the lessee is not in