I would go for a duplex, preferably side by side, with the following provisions..... if your neighborhood has only dumpy duplexes, maybe stick with SFR if they can get you a decent return.  

As of today I do virtual wholesaling and investing in 9 different cities across the USA. 

Make sure the subject property does not require you to do anything special and get a good relationship with the people in the various city departments.  

I'm planning a road trip to look at some select cities in North Carolina and Tennessee.

I'm planning a road trip to look at some select cities in Tennessee and North Carolina.

What neighborhood? 

This does not require much of any marketing money to start and to get deals closed.First pick a neighborhood that you are either in or close to.

We bought an A neighborhood bungalow in NJ this year that cash flows $600 monthly.

On the other side the "devils" are section 8 tenants who don't keep their property clean or in good repair (holes in the wall / broken doors / damaged cabinets / etc.) and seem to be the black sheep of the neighborhood.  

Pocketdeed.com doesn't seem to recognize my filter inputs - when I tell it to search 'League City, Texas' or '77573' it comes back with properties from all over the county.