Burden of proof is on them - they have to prove you did (or didn't do) something that caused "harm". 4.

Before that it was lead paint.There are VERY FEW species of mold which are relatively rare that are harmful. 

I dont think its uneven,If you are in trouble with the bed bugs then try to get rid of them as soon as possible because they are very harmful to human.It has become a very common problem so hiring a professional Pest Control Ridgefield CT has also become very easy.

I'd find out exactly what you can request from her, and if she provides it, you're likely stuck allowing it unless you can prove it is harmful, like you'd lose your insurance or something similar.  

hi. i am a landlord but i do not manage a 60 unit building. i agree with everyone, get a property management company to run things for you. i do a lot of work for a property management company here in the buffalo, ny area as a handyman. quite often, we handymen know of better and faster ways to get the parts you need than doing it on your own. that being said, a/c units have to have a licensed professional work on them anyway, but knowing how to get the parts faster is always a good thing. as far as the tenant threatening the police, lol, they won't even get involved. they have better things to do than worry about some joker sweating a little bit. you dropped off a fan, the tenant refuses to open the windows, which is on him, so he, himself is causing himself and his family more harm than you are. if he is worried about the high crime issue being on the second floor, lol, criminals work as little as they can. they sure as hell are not gonna scale the side of a building like spiderman just to rob this guys place of residence; unless he has a bag of money or gold stashed in the place, in which case he probably wouldn't have been late with the rent 6 times. my advice, continue down the path you are on. hire a property management company, boot this dumbass out the door when his lease expires and let him become someone elses problem. good luck

Nothing is offered to cause harm to anyone, but may be useful in your situation.

You stack your house with junkies "who are harming no one", it starts to bring down the neighborhood.

There's no harm in it the way there might be for a home sale.

@Jd Martin had a valid point which is that if someone gets harmed on the property, they are going after the landlord.

Asbestos is only harmful in it's friable state, option #1 therfore to not touch if it's in good shape.