Somehow, in his smooth rat brain, he thought that was the secret to making money in real estate -- getting other people to do anything that looks like really hard work with uncertain outcomes for you.It all put me in mind of a well-known passage from one of Theodore Roosevelt's speeches:"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better.

The Kilz type products help, but don't ever seem to completely eliminate the odor.  

Of course make sure you aren't just smelling the odor coming off his jacket hanging in the front entry.

I can't tell how strong the odor and where it came from.

The odor was incredible. 

I can understand the concern because of the odor, but your question did not include smoking marijuana or taking marijuana pills for medicinal purposes. 

As soon as I and renewed the lease the tenant wrote me this long message with all these things wronge, including drain smells bad(she’s been putting bleach down the drain to kill the odor, the lights in the kitchen and bedroom are flickering(this ones easily fixable) & the bathroom floor is in-caving because of water damage(she suggested a new shower door).

Was the odor seeping through shared vents or through firewall or what?

.- Read biography on Theodore Roosevelt

Theodore Roosevelt 1907