On the other hand, plastic, rubber or wood does not block radio wave.

I didn’t personally do this but I bought a house right after the previous owner put in new laminate flooring and it only took a few months for the flooring to separate at the seams near the kitchen sink and patio doors.

That's the "picture" that's printed on top of the piece of plastic you are putting on the floor. 

Added a gravel patio in the back as well.

Basically it is a balloon that inflates and they inject plastic into the pipe.

The realtor I'm working with says there most likely squatters in the house (junker cars in the yard, black plastic on the window on the bedroom side, one window is open = lack of power/lack of a/c).I'm still willing to buy to fix up and flip, for the right price, assuming I can either be assured of the property is vacant, or there is a low-cost, efficient eviction process in Columbus, GA.I appreciate any advice from people with experience on evicting squatters in GA.

We have fixed multiple areas of the house including electrical, plumbing, added washers and dryers, added solar powered security lights, built an office, built a patio which increased the value of the house.

They're getting all appliances, an extra fridge, and a huge patio add on and the best lawn in the neighborhood.

I pressure washed off the black moss on the brick in the back of the house and back patio along with all other concrete surfaces which made it look new.

I was looking into something like a plastic one from Home Depot/Costco, one that’s sturdy and gets the job done but isn’t too costly.