He said at some point large sections of the better off population left due to high rates of cancer from being so close to the chemical plant. 

I suppose it could be that homeowners who have solar take better care of their homes in general or are more analytical as others here have mentioned (interesting theory), but I suspect the power plant producing hundreds of dollars worth of electricity each month is actually the biggest selling factor, which is why we now know that homes with solar consistently sell for a 4% premium.

There is a petrochemical refinery and fertilizer plant here. 

I didn't plant the tree, it may have been done by the developer.

Melaleuca should not have been planted in a small yard.

No shelves, TVs, plant hangers in the ceiling, etc.

Some areas in East Tampa are good and maybe Plant City.

Outside of that aspect there are a lot of new jobs such as the GE plant that draw "young professionals".I can't imagine you would ever have a problem renting a nice duplex in Waukesha.

A few of the manufacturing plants actually bus works from Malone to plattsburgh.

Jacksonville is where they have plant their flag and as such, they know all aspects of the Jacksonville market.