Still, (even today) MOST people do not realize the symptom(s) they suffer is the result of exposure --even minimal--to toxic fumes.

You will want to make sure you have a policy that is rated for the business/commercial exposures of a rental property. 

It's about time it's started to get more exposure, even if the only reason is political partisanship.

Once the roof deck is properly vented, I would increase the attic insulation to a minimum of R50 - R60.Windows & doors: Triple-glazed Energy Star certified windows would be my recommendation (about a 15-20% premium to the high-end certified double, glazed window) which are individually tuned {w/r to solar gain, visible light, thermal resistance, etc) for the exposure in which they are being installed.  

BUT, you would still need to buy a policy covering you and the tree farm exposures

Evaluate your business plan, examine your real risk of exposure to the possibilities and manage your business to reduce the risk in the first place.

In my opinion, individuals with multiple investment properties should always have extra liability coverage or an umbrella because of their exposure to additional risk.  

a reasonable time is allowed for exposure in the open market;4.

Tax exposure, risk tolerance, investment timeline, investment objectives, and diversification are all critical components that should determine the way you utilize your funds and equity.

I've had exposure to some of their electric products.