[Whenever I start having problems with a tenant I proceed with a legal "notice to enter" and take care not to do anything that could be considered harassment.

Either way, It feels like she is personally invested in this as she came onto my Facebook page to harass me.

The reason for the threat was that I had accused his girlfriend of stuffing a piece of spray foam back in the hole I had cut it out of weeks earlier, after they had complained it was blocking the gas shut-off for the stove. why they were concerned about the shut-off cannot be explained other than looking for something to harass me with.

I am starting to feel harassed by this guy. 

Give her written warning that her actions are as much of a disturbance and harassment.  

Now consider thissending 1000 mailers.100 people see the mailers and you get 40 people interested and 10 respond immediately.Since you didn't harass them the other 30 interested simply needed more time and eventually 15 of them will naturally get back in touch with you at a later point.

I am screamed at, accused of harassment and profiling when I attempt to inspect. 

Misogyny also often operates through sexual harassment, coercion, and psychological techniques aimed at controlling women, and by legally or socially excluding women from full citizenship.

Or to harass the tenants.

I get paid at variable times every month and really only kicked into gear if I harass her.