Contesting the election comes after the board of supervisors accepts the canvass of the election...AZ election law is here:
https://www.azleg.gov/arsDetail/?title=16
(See section “16-673”, etc.)(Failure to “perform duties as an election officer” penalties are sections 16-1009 & 16-1010).
https://azsos.gov/sites/default/files/2021_EPM_October_1_Submission.pdf
manual
page 262
The Board of Supervisors has a non-discretionary duty to canvass the returns as provided by the
County Recorder or other officer in charge of elections and has no authority to change vote totals
or reject the election results