A lease-purchase agreement may not contain:
1. A confession of judgment;
2. A negotiable instrument;
3. A security interest or any other claim of a property interest in any goods except those goods delivered by the lessor pursuant to the lease-purchase agreement;
4. A wage assignment;
5. A waiver by the consumer of claims or defenses; or
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 in the repossession of goods.