I have thought about creating a mobile home park on land but don't want to mess with environmental issues and massive start up costs.

Again, this is not a stab at all drillers but as a word of caution that this is typically more common with this type of tenant.There are several different job types and stages in the oil field.Beginning of a well:Construction crews (builds the pad)DrillersPipeliners (come and go as well depending on the current pipeline infrastructure or lack thereof)Truck drivers (equipment)Fracking crews.After well construction:Construction crews/welders (build compressor stations and/or transfer stations)Truck drivers.After well, pad and construction is completed: (These are your more steady, longer term tenants)Pumpers/gaugers (maintain the well and oil/gas production from the well.)Production employees (manage the flow of gas and oil and sends those products to the buyer)Mechanics/maintenance employees (maintains compressor stations and other equipment)Environmental regulatory compliance employees (small number of these people)Truck drivers.I'm sure I have missed a bunch and not every well and/or company operates exactly as stated but that is the basics of it.I'm not sure if you wanted to read all that.

Here in Oklahoma, some investor friends have had quite a bit of trouble with the Department of Environmental Quality on lagoons and water wells.

If you'd like more in-depth knowledge, you can read the link at the end from the EPA.I would start by going to your State Department of Environmental Management.

Plus you will need title insurance, environmental reports, due diligence fees, etc.

That could change with reducing environmental regs, but lower income people being forced from neighborhoods and not that many jobs for them could create a bigger issue in some neighborhoods and improvement in others.

I wouldn't want to own a dry cleaner that did their work onsite the environmental risks are too high. 

Anything great than 6 months would be a buyer's market.Time to buy would have been back between 2001 and 2011 when people couldn't sell their houses due to the stigma of environmental issues (see last comment) and competition with nearby Cobourg, ON.How long will the current market dynamics last in Port Hope?

Try calling Peniel Environmental in Milford, NH I think that's what they specialize in

What was on the site prior to the hospital.Value is highest and best use minus cost to get there (Including knocking down building, environmental etc.)