Maybe you need to ask and get in writing that these companies use environmentally safe and non-toxic cleaners.No legal advice.

Do an environmental inspection on the land itself to search for contaminates or...?

This air conditioner will run on environmentally friendly 410A freon.I found it online~$800 + I am thinking worse case scenario 8 man hours to install at $100/hour + $200 to charge the system.

If you're property is over 50 years old there is a greater chance of lead based paint and/or other environmentally hazard based chemicals in the house.

Once the Market Analysis or BPO is completed you will be able to determine if the project is feasible-  and if it is, then you and your Project team can complete the Predevelopment Phase that will include architectural drawings, site plan, elevations, construction estimates, soils and environmental testing, just to  list a few. 

I had posted looking for funding for this 2 years ago on this site,at that time the purchase price was 1.6 million.I did a lot of due diligence on the property including the environmental study,it was not as bad as it looks or did at the time.If this sale goes through it would have made a nice return in the 2.5 years.Another bidder had stopped at 2 million but there were reported 2 others behind the currant 6 million.

There are environmental issues with the building but it has not impacted the acreage.

If it's a retail tire store wharehouse, something like a car wash or car repair shop it may not be as bad, but you'll have environmental issues, testing, engineer certifications, inspections and tenant histories for past business operations that can cost you.10% not near enough.

If you don't plan ahead and find ACM's after your purchase as you prepare to do repairs, you will find that it can be very expensive.Another thing to consider is having a Phase I environmental done as this is considered a commercial property and may be required by your lender.

Not cracks in the wall but the drug that contaminates the sheet rock and interior to an environmental cleanup or rehab being required.