For bullet point #1 I would do each rental property LLC the same as the state in which the property is located.

I have enough in savings to pay for it but I keep asking myself should i just sell it and get it off my plate and lose the low interest rate or bite the bullet and do a big rehab and continue renting it out.

I think this gives the slightest of advantages to people who are smaller investors, and also people who are willing to perhaps sacrifice some time and energy short term for long term gains.

Super frustrating to have wasted so much time and energy with them.  

Bite the bullet and get a property manager.

Compete on photos/amenities/good reviews; put all of your energy there.

Haha it’s not as bad as you think but that is a renewable energy source.

Word on the street is that Split systems (common in . . . . a LOT of places other than the US) operate at a lower energy consumption rate per heating unit and cooling unit. 

I currently work in the energy sector, but my ultimate goal is to become financially independent through real estate.

You're asking someone to spend a lot of time and energy to share what they've spent years - maybe decades - learning and developing.