Sure. as long as you are making the conscious choice that the day they sign the lease they become a tenant and your friendship ends.  

At times I feel I could ask even higher rent rates and someone would still jump at it (this number has been limited by really only my conscious and wanting to keep long-term tenants).           

The pull back in these markets is due to a confluence of many factors, but it started with these environmental factors:Low interest rates and easy financing for new projects.Structurally high rent growth on existing inventory.High wage growth and high job growth.Very low vacancy.These factors led to floods of institutional capital coming to these markets to snap up existing multifamily inventory and build new supply to meet demand.For these markets, the last 5 years have been a seemingly never ending party!

If in Austin for example you may have environmental inspection fee or whatever they call it....

For the best result, you should search for properties that match your zoning requirements and don't have any environmental, wetlands, flooding, etc issues. 

The closest to that is environmental coverage for Underground Tanks (normally gasoline or oil). 

(Google online how to do that.)On the county's GIS, you can find out lots of information about the land...like the actual acreage, parcel shape, you can look for any recorded easements or environmental health permits, etc.   

Just making sure I’m clear on what your asking.In the states for a park purchase your going to want to conduct a Phase 1 environmental test to make sure that the land is free of any hazardous waste contamination.

Maybe check with your state’s fish and game department and your state environmental protection department to see who they work with or have heard of?

It's just the environmental destruction is hard to stomach.