Thank you so much everyone for your input and not giving up on my stubborn a$$!

Find the stubborn sellers who won't list, generally they aren't educated and you can swing a better deal.

not to worry.... only one that would lose that kind of money in a lawsuit is someone who is stubborn..

Stubbornness can be a good trait in pushing through. 

I decided to get an air purifier w/HEPA filter to stay in the 4 br house and an ozone machine to use initially to get rid of the stubborn smell.

The seller was extremely stubborn at first and had a ton of traffic and rejected many reasonable offers.

Thanks for the responseI’m currently 6 months in and trying to close this first deal.Waiting  for a stubborn tenant to vacate the premis

I use disinfectant wipes for final touchups.My favorite kitchen degreaser is Awesome, for a buck from the Dollar Tree store - I've tested it against the more expensive ones and it beats them hands down.For getting stubborn mineral deposits and nasty rings off porcelain toilets and tubs, use plumber's open mesh cloth.

JKI would put that in the same category as a seller who was stubborn on price (not worth my time).  

The best thing is, if I missed a weed, or if one is truly stubborn, I can re-apply as per the directions (usually within a week even).