You can often look online for the county/city zoning map, parcel info, and zoning laws.  

We're in Burlington County, also in the Philly suburbs.

One land speculation I bought 4 acres in sonoma County CA ( wine country) in 96 for 27k it was unbuildable at the time ( could not get a septic system on it) Well city grew to us The Graton Casino comes in right across the street and we sold a few years ago for over 2 mil to a land assemblage investment company.

I had to add a couple more counties to my lists, and still very slim. 

Hi Kevin,Great question... finding the right property management (PM) company can make or break your investment strategy, especially in Orange County (OC), where the market is both competitive and unique.

We have 3 projects going in Loudoun county VA and in my poking around there and looking at product there is some massive townhouse developments there to try to capture the starter or lower priced housing..

I am seeking information regarding the Sheriffs auction in Cuyahoga county. 

There are redemption period of 9 months in Philadelphia county

But it could be just outside of Atlanta in a neighboring county.

You just need to be aware of the zoning rules and regulations for municipalities in Pinellas County.