I have a totally separate LLC bank account for all REI expenses as well as a separate business CC and Lowe's CC.

It can also have its own EIN, separate from the Parent LLC.

You can get the best of both worlds on cash flow and appreciation by doing short term rentals once you move out, or by doing a house hack, where you rent out an ADU or separated basement rental on short term rental platforms while living in the other piece of your house.

my main breaker only has hundred amps, but since the AC has a separate meter one guy was saying it’s OK to hook it up to the main panel though

Benefits of an LLC: Forming an LLC can help separate your personal assets from your rental properties, providing an extra layer of liability protection.

The wall will raise the ceiling in the winter and crack it at the top of the wall in the bedroom, but you can't see that crack at the high side of the floor because the separation is on the back side of the wall / ceiling joint.

There are some general rules but there is also room for flexibility built into the tax code depending on your specific tax strategy.Is your duplex separately metered?

However, you can't apply any of these restrictions for assistance animals like a guide dog or an emotional support animal. 

The real estate guru's will tell you that you should call the credit card companies (3 separate companies) who offer the 0% APR and request to get the maximum amounts on all three.  

I think you're right, the lack of control is probably going to be your biggest emotional hurdle.There may be some middle ground that softens that blow up.