Tenant harasses neighbors

[Jon Klaus]

An elderly couple with a profoundly disabled adult son and adult daughter )care-giver) are being harassed by the next door tenant. They've owned the home for nearly 20 years and don't have trouble with any other neighbors,

Examples of harassment. Yelling at family, making vague threats, cutting fence so dogs can get through, creating loud noise after midnight, and more. Specifically targeting daughter with passive/aggressive behavior and rude comments. The police have warned him to stop making threats and stay off neighbor's property, but no arrests have been made (for the harassment, anyway). There is evidence of substance addiction. My guess is meth.

This tenant is probably judgment proof in a civil suit. He most likely pays his rent with barter of his handyman services. Normally, this home would rent for $1300-$1600 a month or sell for $225K.

The family has significant anxiety, fearing violence. The police say he hasn't committed a crime, but know he is trouble. Previously, the landlord has ignored or downplayed complaints, Once, when several neighbors complained, the tenant moved out, only to return after several months,

On a side note, this has been a poorly managed property since the landlord bought it several years ago, It's never been legitimately leased.

Suggestions? Leverage with the landlord?