A man I worked with once had a rental property next door, and a bunch of yahoos moved into it...you know the deal, music shaking your windows at 4.00 am, motorcycles revving all night, yahoos screaming in the street all night, throwing bottles at your house, vomiting in your garden.....
It was made worse because they had two small daughters, who were very frightened.
He spoke to the neighbours...zilch.
He contacted the agent managing the place on numerous occasions, and was ignored.
Then he took to calling the agent at home whenever there was disturbance (most nights) and for as long as the disturbance lasted (usually from about 10 pm to about 6 am).
They were evicted in 3 days.