Ariz. Rev. Stat. § 48-2861
If a parcel of property that has been subjected to an assessment and a lien is exchanged to this state or the United States for another parcel of property in the flood protection district owned by this state or the United States, and the parcel of new private property receives substantially the same benefit from the improvement constructed as the parcel exchanged to this state or the United States, the assessment lien imposed on the original parcel of property may be transferred to and imposed on the parcel of new private property after the owner of the new private property has received a mailed notice of such assessment and an opportunity to object to either the transfer of the assessment lien to the new private property or the amount assessed against such new private property.
A.R.S. § 48-2861