They cracked (not smashed) a window and removed and threw away the smoke detectors. 

But the neighborhood was happy to see them in their cheap white suits and yellow belt detectors which never alarmed.

My BS detector went off the scale.He's a "search fund". 

For #6, when it comes to alarms, i.e. smoke detector, for example, those should be routinely maintained and not wait under a "capital" expense is needed on them.

EDEN would like to pay me the previous 4 months' rent but I have to fix issues all the little issues in the house, such as fixing hole on the wall, changing the battery for the smoke detector....). 

Door lock, detector batteries, other consumables, replacement of damaged or disappearing items like pool towels and linens, replacing blown out screens (I spent over a grand just on screens last year though we did have a freak huge hail storm).

AND, I would require that there be a smoke detector in the garage that is "connected" or "talks to" the smoke detectors in the house so that if a fire does break out in the garage, the tenants can get out out before the house burns down.I would also make sure that there is a sufficient fire wall between the garage and the rest of the house.

If it was a less damaging issue I might wait it out, but water, fire and 'safety' (CO detector etc) and it would be on my schedule not theirs.

Leak detector water shut offs can save a lot of damage that would not get reported.11.

So, for example, adding an addition would require hard-wired smoke detectors in the addition but not in the main house.