Ariz. Rev. Stat. § 15-445
A. The county school superintendent, on receiving notification from the state school superintendent pursuant to section 15-825.02, subsection B, shall do all of the following before calling an election:
3. If there is more than one adjacent school district that meets the criteria prescribed in paragraph 2 of this subsection, prepare a pamphlet and a ballot question that includes the proposed boundaries and identifies existing adjacent school districts that are willing to accept the unorganized territory into the existing school district. The pamphlet shall be mailed to each household with one or more qualified electors. The pamphlet and ballot shall require the voters within the boundaries proposed by the county school superintendent to join an existing adjacent school district. The pamphlet and ballot shall include the full cash value, the assessed valuation and the estimated amount of the primary property taxes and the estimated amount of the secondary property taxes under each of the ballot options for each of the following:
C. On a canvass of the vote and a determination by the county school superintendent that a majority of the voters approve joining an existing adjacent school district, the county school superintendent shall notify the existing school district of the following: