Duplex - Trouble with the Neighbor

here all clichés are being served.
Someone who doesn't like children at their wedding is a child hater.
Someone who doesn't like dogs between their feet while jogging is a dog hater.
Someone who doesn't like cat shit in their flower bed is a cat hater.
Someone who doesn't like tobacco smoke and cigarettes is a killjoy.
Do you notice anything? I don't think so.

So, I have now received feedback.

The conversation did not go so well.
My site manager told me that he simply does not want to understand it.
He did not engage with any arguments.
"A very stubborn guy."
When our site manager tried to explain to him that we are not making any demands, he just said that he also does not make any demands regarding his garden fence.
The garden fence, like the rest of his house, is 3 cm on our property.

Our site manager gave him a card in case he had any more questions.
That should be it.

According to his experience, there will be problems with him in every trade.

He is not aware of his mistake (encroachment).

Tip from the site manager:
Ignore him for now. Unless he becomes abusive.
He still has a few options if necessary.
But he cannot guarantee that he will continue to remain friendly to him.

Let's see what else comes

If 1:1 is correct, then Nachar is an idiot....

Sometimes a conversation with three people is helpful, sometimes it makes things worse, maybe try it one-on-one?.. possibly offer a beer/wine/water.

Fingers crossed for you!!

What happened with the fence? Did you knock it down?