Versions of Iowa Code 297.20 - Sale of improvements on LawServer 2024 Iowa Code 297.20 – Sale of improvements 2023 Iowa Code 297.20 – Sale of improvements 2022 Iowa Code 297.20 – Sale of improvements 2020 Iowa Code 297.20 – Sale of improvements 2018 Iowa Code 297.20 – Sale of improvements 2016 Iowa Code 297.20 – Sale of improvements 2014 Iowa Code 297.20 – Sale of improvements.