Have changed my name. But had an horrendous day yesterday with the property next door which is multi-occupancy. A tennant, well known drug dealer and heroin addict, broke into the property (he had been evicted) with another bloke who had a weapon. Terrorised many of the other tennants, climbed onto the property roof and started smashing up windows. Luckily police got there pretty quick, but although the landlord has been notified the property has been left unsafe. There is glass all over the front garden and roof. Windows have been put through both at the front and the rear of the property. there seems to be no sign of the landlord and I am very concerned that (A) these people will break back in or (B) someone else will as its very unsafe. Is he legally bound to come and tidy up/make secure the property within a given timescale?