Except as expressly provided in this part and parts 3-5 of this chapter, this part and parts 3-5 of this chapter may not be varied by agreement, and rights conferred by this part and parts 3-5 of this chapter may not be waived. A declarant may not act under a power of attorney, or use any other device, to evade the limitations or prohibitions of this part and parts 3-5 of this chapter or the declaration.