614.18A  Judgment and decree affecting real property.
  In an action in which the court had jurisdiction of the aggrieved party, a motion or other legal proceeding attacking the validity of the judgment or decree based on noncompliance with the requirements of rule of civil procedure 1.972 shall not affect the interests of any purchaser or mortgagee for value of the real property involved unless the motion or proceeding is initiated within thirty days after the recording of the sheriff’s deed or within ninety days after the filing of a judgment or decree not providing for the issuance of a sheriff’s deed.
2009 Acts, ch 51, §1, 17