I did a work around. I had my client sign a 41-175 2022 IA Nonresident Member Composite Agreement (I was not aware of this document when I initially wrote my question). It excludes the nonresident member from the pass-through entity's composite return for 2022. The document stays in the pass-through entity's records (and mine) if requested by the Dept of Revenue. It required I file an Iowa return, however I was already planning to do so.