Iowa Code Title IX. Local Government [Chs. 331-420] § 384.70. Redemption by bondholder

A holder of a special assessment bond payable in whole or in part out of a special assessment against any lot or parcel of ground, or a city within which the lot or parcel of ground is situated, which lot or parcel of ground has been sold for taxes, either general or special, may have an assignment of any certificate of tax sale of the property for any general taxes or special taxes thereon, upon tender to the holder or to the county treasurer of the amount to which the holder of the tax sale certificate would be entitled in case of redemption.