I personally think they are “higher end” than anything stackable.

I am not a huge fan of them personally as they are PE investors and have a very, very narrow view of the industry and how it should be approached. 

If someone injures themselves and sues, they will be suing the LLC and not you personally.

I personally do not have experience managing rentals.

Don't be that person.  

Did you give her written permission to store personal items outside in a common area?

Living in one unit and renting out the others allows you to deduct 75% of expenses like mortgage interest, property taxes, insurance, and shared repairs as rental expenses, while the remaining 25% applies to personal use.

they're not magic.are you going to in-person / informal meetups? 

I personally will try to avoid buying a home under 1000 square feet again.

Ask your employer if you can have your pay split up into three deposits, one to investments savings, one to your checking account for personal use on a daily basis, and one to an emergency account you can tap into so you don't have to tap into your investment savings.