The acid is not very toxic to humans in small quantities but dissolves some part of the roach's body.I am not very sure about the government rules in the U.S. about boric acid but it is not very dangerous and is used in other countries to get rid of roaches.

But here is where things started to get me a little irritated while i may be young i have joined a MLM company in the past while i tried it just didn't work out for me. 

I have a policy of never being out of contract, much to the irritation of my escrow people and agents.

The IRS is irritating but not stupid enough to allow someone to convert a property when FMV is below their original purchase, and then conjure up a tax loss, surely that makes sense.Sell the house.

If you are a MA investor, you've probably heard of the Ibanez ruling, and maybe have even been impacted by it. Hundreds of properties can't be bought, sold or financed due to the title issues created.

Legisl...

Actually toxic mold is extremely rare and every home has at least some mold and mildew.  

If that's the case it's still a very irritating and unreasonable way for him to do business, and a clear breach of contract, but I can accept that reason without a lot of animosity.  

.- The Zero VOC paint has very little odor and no toxic fumes.

I don't know if it would have driven me to move out but it was so irritating to have that thing start barking when coming in the front door, or have it jump all over me if the owner happened to be leaving the building at the same time as me.

If they are good tenants otherwise then I'm not sure you should even worry about it (other than the hassle your tenants might face for having irritable neighbors)