Iowa Code § 6B.57
If an acquiring agency makes a good faith effort to serve, send, or provide the notices or documents required under this chapter to the owner and any contract purchaser of private property that is or may be the subject of condemnation, or to any tenant known to be occupying such property if notices or documents are required to be served, sent, or provided to such a person, but fails to provide the notice or documents to the owner and any contract purchaser, or to any tenant known to be occupying the property if applicable, such failure shall not constitute grounds for invalidation of the condemnation proceeding if the chief judge of the judicial district determines that such failure can be corrected by delaying the condemnation proceedings to allow compliance with the requirement or such failure does not unreasonably prejudice the owner or any contract purchaser.
Iowa Code § 6B.57
99 Acts, ch 171, §22, 42; 2000 Acts, ch 1179, §21, 30; 2006 Acts, 1st Ex, ch 1001, §24, 49