House donation by parents in 2-3 years - buying out siblings

hmm, I find it difficult when you cannot participate in further "appreciation" but do not get the full money today.

So the options:
you settle it today, value: 400,000 EUR
Assuming the parents stay living there for another 3 years. The rental value (simply calculated, as an example!) 600€ per month = 21,600€
thus I would set the value at 380,000 EUR, 190,000 EUR goes out to the brother.

The other option:
the parents move out in 3 years, in 3 years the house is transferred to you.
The value in 3 years (as an example) is 500,000 EUR.
So you pay 250,000 EUR to your brother.

Because if you give your brother 30,000 EUR now, you can of course deduct that from the 250,000 EUR in 3 years. But as long as he does not get 100% of his share immediately, I would see no reason why he should not also participate 100% in the appreciation. Anything else is unfair!

Of course, you can also take interest on the 30,000 EUR, 2-3%, or whatever you pay the bank for it, or whatever costs arise. That is also fair.

hmm, I find it difficult when you cannot participate in further "value increases," but as of today do not receive the full amount of money.

Possibly buy / have gifted with residential rights for the parents

The OP could also have a heart attack in two years and then the brother gets everything and the grandchildren get less or or or?
I certainly wouldn't feel taken advantage of if I were to receive an amount X of today's value now.

I think tax law foolishness that would never happen to rich people but to ordinary citizens should be worth a separate post from me.