A.R.S. § 48-517: Abandonment of proceedings; return of assessments paid

The council may, at any time prior to payment of the compensation awarded the defendants, abandon the proceedings and cause the action to be dismissed without prejudice. If any of the assessments levied to pay the expense of the improvements, as provided in this article, have been actually paid in money at the time of abandonment, the money shall be refunded to the persons by whom it was paid.