An example of a system that we've seen on the market is the DoorBird IP Video Door Station D21DKH.  

I will be moving duty station out of state.

Anyways, we took the jump to try to get into real estate and bought our place here last year in hopes of staying here a few more years before moving duty stations and then renting out our property.

I am familiar with Tampa too because I used to live there and am now there constantly because my daughter is stationed there.  

I am in the Air Force and I am stationed in Tucson, AZ.

So the reason I was asking is because I should be PCSing (getting stationed) soon and was curious about what my options could be in buying multi family instead of a single family home.

One of the ideas that I'm evaluating is to acquire a small piece of property within the city limits near a train station of local towns such as Farmers Branch, Carrollton, Lewisville, Plano, Euless etc,.

She did at one point, but unfortunately they’re stationed in Japan for a few years, so they won’t be able to be there :/ Thanks for the book suggestion!

Since they spent most of the time when they were state side in either Galveston or College Station, they bought a duplex here in Galveston and rented out the bottom.

I went through this process when I decided where to retire.At a high level, I used financial media, Wikipedia, and local news (many TV stations stream their local news broadcasts) to select a state and city.At the neighborhood level, I used CrimeReports to get a feel for crime and real estate listings to get a feel for the type of housing in the zip code.Then it's boots on the ground to home in on a specific choice.