The bank did not want the bad publicity or the any liability of a chemical contamination hazard and never disclosed any of this to us.

. :-)I don't think you'd be required to get any special chemical hazard company to deal with that though.

I have a degree in chemical engineering and work "passively" in REI.  

I am currently working for a chemical company called Magnablend bought out by a global company Univar.

He would not have to worry about causing any harm to the tenant due to chemicals. 

Needless to say, for me it was worth spending the extra money than having to deal with all the chemicals and prep work and it probably turned out better than I would have done it, and fast too.Just curious, what's your niche?

Is the chemical treatment works?

I have seen people try all kinds of chemicals before they find out the glue is water soluble.

It is easy to realize that the bigger home with more bathrooms, bedrooms, square footage will have a higher maintenance/cap ex expectation but what may be less obvious is that this will be compounded because in general class D tenants are harsher or SFR than class B tenants. 

An idea I had was to add an appliance care/ granite care addendum to my leases which give average costs of replacing SS front pannels of appliances that will be billed to them if they dent the stainless facia, what NOT to put in the dishwasher, and how to care for granite and what types of chemicals/oils are not granite friendly.