Additionally, density is the most green and environmentally friendly way to build cities. 

I got an irate phone call from another agent who thought I stole her listing photos.And even worse than that, their false data pollutes the minds of my seller clients. 

Try:RTE Radon Technology & Environmental

Its an environmental issue yes.

The best you would be able to get is a Letter of Environmental Protection, which tells everyone you did illegal work then hired a licensed deleader in to fix it.

When some jerk says that climate change doesn't exist, and they're from NJ, I remind them their federal tax dollars are being spent every year just to keep up with the problem.Anyway, besides the environmental concerns, @Jaysen Medhurst is correct, typically you deal with more tourism at the beach, which means shorter term rentals, being more hands-on, etc.

The best you would be able to get is a Letter of Environmental Protection, which tells everyone you did illegal work then hired a licensed deleader in to fix it.

Other activities could potentially include traditional camping, glamping, non-traditional camping (i.e. allowing campers to camp with dogs off-leash), allowing dog clubs to meet on the property for competitions for a fee, hunting, building a tiny house community, build a solar or wind farm, drive-in movie theater, paintball course, etc.Depending on the landscape, someone might be interested in leasing the land for raising livestock, doing a livestock show, performing environmental research for state/federal grants, etc.

I say the answer lies in between- you should monitor environmental changes as they occur and are forecast to occur, and as an investor, hedge against those changes (however big or small those may be). 

Some of the the best ways to find off market commercial and multifamily properties is to compile lists through a paid service like List source, Reonomy and CoStar or you can use free resources like Loopnet, CREXI, Craigslist, tax database, brokers, property managers, title companies, environmental consultants, building inspection companies, appraisers, landscapers and other companies that service commercial and multifamily properties and driving for dollars.The real key is in how you approach the owners and then the follow up.