The "non-buyers" can be filtered out quite reliably in the first conversation. They do not get an offer.

Well, he can give the offer maker a hint whether the interested party belongs to the buyers or the lookers. But he will usually end his career with the current commission payer if he denies the lookers the offers.

Therefore buy only from a professional and let the "blabbermouths" expose themselves.

That is why I advised the OP to also ask things where one definitely knows the right answer oneself.

Even though there is hardly any training for selling – it is a professional business in which many amateurs operate.

Interestingly, it is precisely the amateurs who call themselves gurus and only pass on their tips for 14 days after this webinar in the video course tele-school for only 295 euros.

The seller must be an expert in 4 fields: [...] Produkt & Lösung

That requires specialists – not yesterday Aloe Vera and tomorrow fund life insurance sellers.

I would prefer a small turnkey house general contractor from the region, but despite weeks of research, I simply did not find anyone like that.

A tip: contact everyone without obligation, you get a good feeling whether it will work on a personal level.

Example from our experience.

Unger Park Leipzig "Helma Haus"
- 1st meeting 2 hours long sketched the house on the PC without answering any essential basic questions about construction or additional building costs
- communication inadequate

Regional general contractor/solid builder (franchisee Town & Country)
- 1st meeting 2 hours long talked about additional building costs
- continuous communication via email, patiently answered all questions

You quickly notice where the focus lies. If you don’t feel taken care of and the communication isn’t right, I would keep looking or ask other builders in the area (building diary list is a good start)

See. On the contrary: I myself (in a completely different industry) have been doing well for decades with the strategic decision to keep the Krethis and Plethis away from me by having a terribly bad website, people you don’t even want as customers. In the referral business, "the apple doesn’t fall far from the tree," meaning a satisfied customer does not recommend a service provider to the biggest idiots he knows, but to good acquaintances.

It was the same with us. We asked our construction supervisor: "Who can you recommend?" and he came up with 2 companies I would never have found on Google. The recommendation then proved to be true.

Example from our experience.

Unger Park Leipzig "Helma House"
- 1st meeting 2 hours long sketched the house on the PC without answering any essential basic questions about construction or incidental building costs
- communication poor

Regional general contractor/masonry builder (franchisee Town & Country)
- 1st meeting 2 hours long talked about incidental building costs
- constant communication via email, patiently answered all questions

In other words: chemistry-wise in your case number 1 fits better *ROTFL*

Better than with us. He had held himself together not to laugh at us. Passive house is eco and ridiculous

Better than with us. He had held himself back from laughing at us. Passive house is eco-friendly and ridiculous

KfW construction method is also out for him because interest rates are low and therefore there is no longer any reason to build energy-efficiently.