I used the Environmental Management Group a few years back and had good luck.

Don't forget to look up Environmental issues.  

So besides the environmental and tax benefits, you can benefit financially in a few ways. 

Not sure why you think the tenants will mess with it , especially when it improves their environmental quality. 

Phase 1 Environmental Site Assessment 5.

@Isaac D. always tricky when there's auto repair involved, there are environmental concerns (with oil changes and other fluids), and it may be difficult to finance.Outside of that, 1-4 units strictly residential that won't be owner-occupied, you may be able to find a hard money lender willing to do 10-15% down.

Environmentally Friendly• Bamboo is a sustainable and eco-friendly flooring material that is created from grass.

Check with the city or county to determine what is required for all approvals and the time frame, Ask if you have to install curb, gutter, sidewalks, street signs, street lighting or any other special requirements.Are there any specific street design requirements, DOT requirements, permits or traffic studies.DWQ, Army Corp or any other environmental requirements or permits.General permit fees, proffers, water/sewer tap fees and the process of setting taps and connecting.

I would speak with an environmental company that may be able to recommend a professional for you to speak with and also research the soils.

There are some quick fixes (and forgive me for this probably not being the most environmentally friendly solution but...); if you put some Spectracide down (both around the perimeter of the house and by the window panes) that should do the trick.