@nikitonsky I ended up not needing her on an ongoing basis, but I had an initial consultation with Nicky of https://buchhaltungspalast.de/for-english-speakers/, and she was extremely competent and helpful, to the point that I had looked forward to working with her, and she managed to proactively solve a huge problem for me.

(Got a recommendation for here here on Fedi a year ago, so just paying it forward.)