<human>: Condense the text into a few key points

Germany.

We have a family business and I want to transfer the business step by step to a new LLC. But I am considering to place my father as owner of the LLC to protect the business from my very fragile relationship with my wife, because she is talking about divorce and I am about to make some massive investments into the LLC. (what a timing)

Now I want to create a legal document that requires my father, who will be the owner of the LLC, to set me as the owner, whenever I decide that it is time to get ownership. Probably after the divorce is due or never as long as I stay married and my father is still alive.

Is this a simple option on 100% of the business? What kind of document has this to be? Have you ever heard of something similar?

Together with this "option", I also need to legally be granted the power to make decisions for the company, over the head of the owner and manage all the money as I see fit. Is this also possible to be legally documented?
<bot>: Need legal advice on how to have the power like an owner, without being the owner and how to transfer the ownership whenever I see fit.