"Uncooperative" (unused) housing right causes problems

One more question. Registered right of residence in the land register or only a private contract?

How is it with the additional costs. Does he have to pay them according to [Wohnrecht] and does he also pay them? If something is free, then people like to keep it. But if you have to pay for something that you don't benefit from, then you are more likely to "voluntarily" give it up.

Does he have to pay them according to the right of residence and does he actually pay them?

The classic right of residence includes the bearing of ancillary costs. That's why my question how it is actually agreed upon. @TE: Please post the approval deed

The classic right of residence includes the assumption of ancillary costs.

Who do you think is responsible for the ancillary costs under the classic right of residence? The entitled person, right? If they haven't been calculated yet, then during the chat (if it doesn't go so nicely) one could hand over the ancillary cost statements of the last 3 years. Afterwards, the chat might then perhaps turn towards a (non)paid waiver of the right of residence. In return, one could then generously waive the ancillary costs.

Who do you think bears the cost in the case of classical life tenancy? The entitled person, right?

Exactly. However, operating costs for three years are not permissible. If the entitled person has to pay, the deadline for settling operating costs is 12 months, as with rental apartments. But you don’t have to inform the entitled person about this...

I am not very familiar with this, as I have only been a regular tenant for 2 years in my life. I thought the statute of limitations is 3 years.