Buying a house but the seller requires the right of residence - How to proceed?

You really caught a smart one there. It’s like your situation but reversed. Lease agreement and that’s it. He should have the double burden, not you. Otherwise, keep looking.

No, no lease agreement, you won’t get rid of the tenant anymore ...

Capture ownership transfer now and handover later.

Implicit "rent" is factored into the purchase price.

Sure, this way we would save real estate transfer tax, but we would still have to pay 12 months of rent for the apartment and the loan. We want to avoid that. Or I misunderstood you

Misunderstood. Either right of residence (is registered in the land register, no rent payments, costs notary and land registry fees, and reduces the value of the property) or rental agreement (then rent is paid).
I would simply conclude a fixed-term rental agreement. I myself have already been a tenant in my own sold house ;-)

We were in a similar situation but as sellers. I made it clear that the apartment is not needed until October and only then is the purchase price payment necessary. From October onwards, if there are delays, a customary local cold rent until moving out. All of this was recorded at the notary.

Otherwise, you are the idiot with the double burden, but apparently people like that are found ;)

For the seller, there is an interest-free period and he should negotiate it for himself via interim financing and not shift it onto you.

Misunderstood. Either right of residence (is secured in the land register, no rent payment, costs for notary and land register, and reduces the value of the property) or rental contract (then rent is paid). I would simply conclude a fixed-term rental contract. I was already a tenant in my own sold house ;-)

Okay, then I think I meant a fixed-term rental contract at the beginning too... Cold rent then in the amount of our interest + repayment burden

Then you pay the full purchase price for property transfer tax, pay the notary on that (possibly even the broker), and pay tax on the rent you have already paid again. Deducting rent directly from the purchase price saves you that.

We are buying the house. Let the right of residence be registered for the seller until next year.

Right of residence is nonsense

Lease agreement and that’s it.

Lease agreement too

No. Different. Let’s say the price is 250 thousand. 12 months right of residence equals 14 thousand. Thus, price with right of residence is 236 thousand. That reduces property transfer tax and notary costs. Karsten

That’s how it is.
The date of handover is defined in the notary contract. Also the transfer of the money.
That can also differ.
Either the seller arranges interim financing for their new construction project themselves or there is a lower sales price for earlier cash flow.
For win-win deals, you have to sit together at the table and each calculate the advantages for themselves.
This is not a singular case, and those who do not trust will remain alone.