The closest to that is environmental coverage for Underground Tanks (normally gasoline or oil). 

I've heard the Zinser shellac based primer does a better job at locking in odors as opposed to Kilz...or make sure it is an oil based Kilz...Here's a link to a BP cat litter flip forum post from a few years back...half way down page 5 he talks about the smell removal process. https://www.biggerpockets.com/forums/88/topics/133059-cat-li...

Balloon" framing (1920's I believe).Radon.Plaster and lathe instead of sheet rock (pre 1950's) or plaster and wire mesh variations (50's) more solid than sheetrock but a real b*tch to repair or demo if you're remodeling.You've got Galvy plumbing but also need to look out for other kinds of outdated plumbing like clay sewer lines (pre-1930's, prone to collapsing, bellies, root intrusion), cast iron (1950's, often rusted and/or cracked by now), and PB (polybutylene, gray-colored water pipes, 1980's, prone to rapid degradation and subsequent bursting, mostly gone by now).Buried Oil Tanks-- Do you have those there?

Perhaps, the heating system is old and inefficient oil heat and you modernize it to a high efficiency unit with a cheaper fuel like natural gas.

At scale you could maybe shave a couple thousand off, but end of day this is still site-specific construction prep.In terms of a business plan, $25k horizontal + $25k vertical and sell to the homeowner for $100k installed is still a solid value proposition for both parties. 

Interest only you will be paying points upfront as every lender has fear you will early pay them off, and once you calculate those points even over 60 months the rate is higher.You are looking to shave off costs to make it cash flow?

Quote from @Ashton Hines: Hi Devon, Curious what you think about the STR market around Lucas Oil.

After you figure  it out, oil based killz does AMAZING things! 

Timber deeds are actual Deeds kind of like Oil and gas rights..

I agree with Robin, my first deal was a single family house in a good area with blue tarp over the roof and a noisy but working oil boiler.