A rental purchase agreement may not contain:
(1) a confession of judgment;
(2) a negotiable instrument;
(3) a claim of a property interest in any goods except those goods delivered by the lessor pursuant to the rental purchase agreement;
(4) a wage assignment;
(5) a waiver by the consumer of claims or defenses;
(6) a provision authorizing the lessor or a person acting on the lessor's behalf to enter upon the consumer's premises or to commit any breach of the peace while repossessing rented property; or
(7) a provision mandating that the consumer purchase from the lessor insurance or a liability damage waiver for the merchandise.