Maryland Commercial Law Section 12-1105

      A rental-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 the rental property delivered by the lessor pursuant to the rental-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 rental property.