And I never met them because it's totally in different building.

My next goal would be to invest in out of state short term rentals and add those to the portfolio, but not sure how that would impact my LLC if I create a Wyoming Trust/Holding Company/LLCs and foreign file for incorporation into Connecticut to complete the first deal for the duplex, but then what happens when I want to invest in out of state investments deals/opportunities/homes? 

There are two peas in a pod, but they taste different.

I don't know of any companies who will take on a property with an open claim.

You can get that from Propstream, Redfin, Property Radar.My experience is they are all different numbers and are "best guesses".

Check out rental comps for private rooms in your area - you might find that it doesn't make a huge difference, but in my market (Twin Cities) you'll get considerably more.

Where can I get information about investing out of state and learning the differences and advantages? 

The ones who don't pay or need eviction notices to scare them to pay are different in my opinion and you should look to get them out as quickly as possible

In Detroit area, the auto-related companies are big employers.

From what I gather the two property management companies are not very good.