I wouldn't worry about small details like setting up LLCs, just focus on establishing a solid market and making good connections with people on the ground there. 

Only let in A+ people--no matter what. 4. whatever task you can't handle hire someone.

I do want to thank people for taking the time to answer this. 

Generally larger commercial properties and shopping centers are easier to classify with hard and fast rules, but to the points above the residential areas really move very quickly and have way more nuance than most people care to admit.zip codes are generally way too large for my liking at least in my market to provide any kind of insights other than macro level economics but even then highways or rivers that cut through a zip code can end up with totally different trade areas.we can get pretty granular with cellphone data and with grocery center data to understand the trade areas and their true boundaries, but that kind of data pull is generally only cost effective for investors doing larger scale projects or developments, and honestly we still just end up getting on the ground and feeling it out, so I generally tell people that the money is better spent on a plane ticket and weekend trip in the area you are looking rather than any kind of "trade area" level data studies.and generally B class in 1 area means something different than another. 

These are the people that can bring you good deals and advise you on the areas of Cleveland. 

Which is not easy for possible for many people (like your husband).Once you really know what to do, the risk level drastically reduces.

Lots of DC area people on here.

I bought a single family because I thought I could house hack in the same way as a duplex and in ways it certainly could have and did work but I didn't expect the relational aspects of having people living in a property I purchased.

Typically when people graduate they look for a job and move to the area of the job.

Type up a DEMAND LETTER (some people call it a NOTICE TO EVICT).