Tell everyone who calls that the place is haunted. You hear voices all hours of the night. Some might be imagined but the child screaming next door is real. If you can live with it, leave the place a complete and utter disaster if and when they show the unit.

Then give your 30 days notice with a not so polite letter, and insist that they use your security deposit for the final 30 days.

They’ll be pissed, but does your friend really care if they are pissed?