There may be issues with noise and odors.

Losing money comes with the game, like free throws and fouls.

This way you're cutting down on the number of loan fees and you won't run foul of the IRS.

Plus you can run foul of all kinds of laws of disclosure ,net listings etc Talk to your broker and he can fill you in on his policy and state laws 

Not only do the properties tend to sit on the market much longer, but they also sell for less than a comparable property that has no residual odors.  

You may get audited and the IRS may call a foul and hit you with a claim for the capital gains. 

The comps will be from high prominent neighborhoods, larger square footage properties and not accounting for adjustments, distance of comps is way off and when appraisal comes back wants to cry foul.

This is also why I am avoiding the BRRRR approach.I currently have a full time "Job" [sorry for my foul mouth] in cybersecurity which limits the time that I can invest in real estate, but also provides me additional funds that I can direct towards investment projects.

I someone has something in a private area, that's not for me, but as long as we're not intimate, no harm, no foul, nor do I really care.  

Show some proof of agent misrepresentation by OD or that the cost of convenience is what you say.