I doubt your local city Gestapo will come by and harass you but it is way more likely in some areas than others.

Maybe in NY its different but the lawsuit we are up against by handling anything on our own can land us with harassment charges and huge fines and even jail time if we lose our temper which is very easy.

This process keeps it clean and professional, unemotional, and doesn't put anyone in my office in danger.A couple more tips:Always be aware of your surroundings and the risk presented by the circumstances and the other party;If there is even a slight risk of the tenant getting angry, bring a witness.If you can't bring a witness, bring protection;Don't enter the home of a bad tenant where they can secretly attack;Men should never enter a rental with a female when there is ANY kind of conflict because it sets him up for a claim of harassment or assaultThese safety tips are true for unpaid rent or eviction, but should also be followed any time there is any issue that can cause stress or anger for the renter.

She still sent several more messages, so if it continues, I could file for a harassment restraining order.The tenants are also filthy. 

But ...A couple years ago when I was unreachable for 2.5 weeks, we had a gay tenant that was being harassed by neighboring homophobes.  

He also harassed the Tenant in the Complex’s parking lot.The Tenant called the police about the Harasser’s behavior.

Some landlord actions can be considered legal harassment.

He ended up having to the sell the property because of a potential fine and harassment by the neighbors.

If you get a bad HOA board or a neighbor that loves to harass, you could be in a difficult spot.

You need to get an attorney to rewrite your lease as this is one way you could be sued as your tenant is being harassed and you are not doing anything2.