File a police report, and take a deep breath.

I would contact the police about his threats.

I was out at all kinds of hours putting these signs up and trying to dodge the sign police.

We actually called the police on someone here in Columbus Ohio that was doing this with rentals that we own.

That ticked him off to the point that I had to report him to the police department.

I told L to text M that the door was locked and that she was calling the police. 2 minutes later, the door seemed to become unlocked and the back sliding door was unlocked as well with no one inside.

When I called the department, they actually said it's because rentals are not kept up as well as owner occupied, so landlords have to pay for extra code enforcement people required to check up on rental properties and code violations, which is ridiculous as most neighborhoods there are HOAs that police their neighborhoods better than the city could do.  

When we have called the police, they don't get involved saying it is a civil matter.

@Lee Carrellcheck with your local police dept about the no trespass order.

A major concern i have experienced in Dominican Republic is fraud with lawyers, police, you name it.