True, Republicans in 2025 will control the White House and both chambers of Congress.You can easily Google how the legislative process works or just trust my Cliff Note: having a simple majority usually does NOT assure that Congress passes any bill, including tax bills.

We don't practice discussing the details of private transactions publicly, thats just not good business.

Your idea of using a second home mortgage for house hacking is both creative and practical, especially given your flexibility.

The ground floor has gas hookups for a gas oven and that floor has its own gas range/oven and kitchen which is also controlled by a ground floor sub-panel also with access to the backyard and to a lower cellar area where they have their own washer dryer and storage area.   

For me, it's about practicing Cooperative Group Economics: It's not about me maximizing my profit, by rather about me maximizing the benefit to my community.

It's a detailed perspective on how private lending works, with practical strategies for building wealth through this niche.

Is it not the actively working and realistic practice used all the time?

Unfortunately it's not practical in a rental unit.

Unfortunately, renting in the far-left wing states allows tenants to be treated in a manner that far exceeds ethical rental practices. 

At the very least you get practice running numbers and if you share your thoughts with the realtor they will have a better idea of what you are looking for in the future.