Okla. Stat. tit. 14A, § 14A-2-404

(1) With respect to a consumer credit sale or consumer lease,

an agreement by the buyer or lessee not to assert against an

assignee a claim or defense arising out of the sale or lease is

enforceable only by an assignee not related to the seller or lessor

who acquires the buyer's or lessee's contract in good faith and for

value, who gives the buyer or lessee notice of the assignment as

provided in this section and who, within thirty (30) days after the

mailing of the notice of assignment, receives no written notice of

the facts giving rise to the buyer's or lessee's claim or defense.

This agreement is enforceable only with respect to claims or

defenses which have arisen before the end of the thirty-day period

after notice was mailed. The notice of assignment shall be in

writing and addressed to the buyer or lessee at his address as

stated in the contract, identify the contract, describe the goods or

services, state the names of the seller or lessor and buyer or

lessee, the name and address of the assignee, the amount payable by

the buyer or lessee and the number, amounts and due dates of the

installments, and contain a conspicuous notice to the buyer or

lessee that he has thirty (30) days within which to notify the

assignee in writing of any complaints, claims or defenses he may

have against the seller or lessor and that if written notification

of the complaints, claims or defenses is not received by the

assignee within the thirty-day period, the assignee will have the

right to enforce the contract free of any claims or defenses the

buyer or lessee may have against the seller or lessor which have

arisen before the end of the thirty-day period after notice was

mailed.

(2) An assignee does not acquire a buyer's or lessee's contract

in good faith within the meaning of subsection (1) if the assignee

has knowledge or, from his course of dealing with the seller or

Oklahoma Statutes - Title 14A. Consumer Credit Code Page 70

lessor or his records, notice of substantial complaints by other

buyers or lessees of the seller's or lessor's failure or refusal to

perform his contracts with them and of the seller's or lessor's

failure to remedy his defaults within a reasonable time after the

assignee notifies him of the complaints.

(3) To the extent that under this section an assignee is

subject to claims or defenses of the buyer or lessee against the

seller or lessor, the assignee's liability under this section may

not exceed the amount owing to the assignee at the time the claim or

defense is asserted against the assignee and rights of the buyer or

lessee under this section can only be asserted as a matter of

defense to or setoff against a claim by the assignee.