How to manage risks: fire / carbon monoxide detectors, etc.

[Jane A.]

Hello everybody,

how do you see the biggest risks of being a landlord and how do you manage them? 

For example, how do you decrease the liability in the case of fire?

What are other risks you are concerned about and how do you manage them?

Thx

[Max T.]

I replace old smoke detectors with the 10 year lithium battery ones that are built in.