Versions of Iowa Code 572.29 - Assignment of lien on LawServer 2023 Iowa Code 572.29 – Assignment of lien 2022 Iowa Code 572.29 – Assignment of lien 2020 Iowa Code 572.29 – Assignment of lien 2018 Iowa Code 572.29 – Assignment of lien 2016 Iowa Code 572.29 – Assignment of lien 2014 Iowa Code 572.29 – Assignment of lien. 2009 Iowa Code 572.29 – Assignment of lien