The validity of the organization of the district shall not be questioned in any court, except by the state, unless the action questioning the validity is filed within one year after the order declaring the district organized is filed in the office of the county recorder.
A.R.S. § 48-3426
Time limitation upon filing action attacking validity of district organization
Official source: Arizona State Legislature. Reproduced from public-domain Arizona statutes; confirm against the official source for the current text. Not legal advice.