I'm not a lawyer and this is not legal advice...Six months is certainly excessive, but not completely unheard of when dealing with a probate case - the file normally has to get on a probate court docket, work it's way through the system, and eventually the judge orders/authorizes the sale of the property. 

I have separate excess liability policies from another insurer for units 5 and beyond.The Geico umbrella covers me and my primary in one state, and excess liability for 4 of the my rental units in another state.

I  can not give you legal advice but the actual set up of an LLC is inexpensive done thru a states web site.

How will your smart lock prevent the "authorized user" for lack of better term from just letting the other people in?

The next morning the seller received 4 offers in excess of $820K and we ended up having the lowest offer.

Current facility has a cheap camera system that I'm not sure if it can be web based or not.

You should be able to find their registered agent on the  secretary of state web site. 

Long term goal would be to own half a dozen houses all in this neighborhood, mostly to build equity via mortgage paydowns, rather than excessive cashflow.Any objective thoughts would be welcomed.

To find a web developer look in your own backyard...then Go with your business card and play the game..."

I found Jess Stryker's web site on sprinkler design, an did it myself.