Ariz. Rev. Stat. § 48-4975
A. Real property qualifies as a water district member land only if all of the following apply:
4. The owner of the real property, or other person or entity such as a property owners' or homeowners' association, if the person or entity has proper authority, records a declaration against the real property, in the official records of the county where the real property is located that:
C. Notwithstanding the provisions of subsection A of this section, no real property qualifies as water district member land unless the municipal provider that will provide water to the real property that is subject to the declaration records in the official records of the county where the real property is located an instrument that contains both of the following: