Some great suggestions here already.

He suggested sending a demand letter (that would cost us $2500), which the contractor could just ignore, and take him to court but the costs of everything may cost us more than we lost.

I’ve found it’s a lot of bubbling communities in the south metro Atlanta area to invest in and the numbers suggest there’s even more room for growth.

Hey @Tom Pubins - I would highly suggest using www.hemlane.com they syndicate to many different sites and have a very clean platform to manage tenant screening. 

for the reasons you suggest this is not a great way to think or look at things for long term wealth..

If your plans have now changed from how this was underwritten, I would suggest you simply check with your lender.

am in the cleaning and restoration industry.ozone and chlorine dioxide and many other suggestions here might work but the most important thing is that you have to treat the source for it to work.A professional grade black light could have helped you find the source easier before your contractor painted and installed new flooring.If it is very strong odor  the proper way to do it is find source,treat,clean everything and then chlorine dioxide or ozone.

I suggest cash for keys.

I suggest utilizing all the tools at your disposal on the BP website, listening to podcasts, following investors on social media, and watching YT videos.

I've heard this opinion echoed by a lot of other investors.I would suggest FCI.