If experience level is low.

This would be my first effort, as a non-accredited investor, dipping my toes into real estate in a low risk way. 

As far as your actual question goes, it is hard to say with absolute certainty what a flip will do to a neighborhood.

We want to go for another real-estate investment (we are doing buy and hold..buy low, renovate and make them short term rentals on airbnb in Ocean City, Maryland).

Used all the money plus brought in 20 k to make the rent low enough to make sense and be safe.

Some of them seem a bit too low.

>> Low fixed fees of $625. 

I have also found that since I am in such a competitive market (central Florida) that the rate is low enough on the 4-bedroom that I often get couples who could stay in something much smaller but find our house worth the slightly higher cost.

Whatever direction you go, don't buy in cheap, low end neighborhoods just because they are affordable. 

The problem with low end properties is the relative cost of repairs.