Is consulting a building expert shortly before acceptance reasonable?

Hello everyone,
thank you very much for your assessment. It helped me with my decision. I will report back on how it turned out.

So... here is a little update as promised. We have now decided against the external expert. He would have only "visually" inspected and thus probably seen the same things as the TÜV expert.

We currently have a very good feeling about this decision. All defects found can be remedied and therefore do not pose an obstacle to approval.

Thank you for the informative exchange.

Brave...

But first, wishing you a nice move-in and living [in your new home]