A lot of times being a landlord it is about minimizing your exposure to liability.If a tenant or their guests or kids were to get hurt on the property, you can easily expect yourself in today's society to be involved in an very costly and possibly very long lawsuit.We advise owners not to leave on lawnmowers, ladders, weedeater's, yard equipment, or even cleaning supplies and chemicals.

When looking at investment property, pet odors smell like money.I bought one of these a few years back and was prepared for chemical warfare. 

Now when you walk it there is a very strong chemical smell and we can’t pinpoint what it is.

Electricity, chemicals, scaffolding, spinning blades, etc. 

Cleaning the air handler coils when dirty, changing filter, using A\C pan tabs, blowing out the drain line with shop vac and using chemicals to deter growth in drain lines all seem to help. 

Oil is used to pave roads, make plastics, produce solvents and other chemicals.

We heard from a garage door contractor he would not put in his garage doors knowing a pool would be in there since the parts get corroded from the moisture and chemicals. 

The tenant wants the guy evicted, she doesn't (shouldn't) have to breathe these chemicals while on the property.  

I would put it in the lease that the tenant needs to pay for upkeep like the chemicals and making sure it is clean.

I am married to a chemical engineer and he absolutely says the stuff Home Depot or Ace hardware recommends is as good as what Orkin is going to spray.