Thanks Nicholas and Jon for the information.
We have many single family homes converted to rooming houses. As may as 15 occupants and many of them having just a curtain for separating one sleeping room from the other. No exits from basement and second floor, they use the common stairs in the middle of the house. No fire separations, no smokes or COs. The owner is overseas and have language barrier with occupants.
Based in these conditions I would like to go in and install the smoke and COs and remove the people from the basement. But how is this organized? Do I just enter one day and start installing the smokes and COs? What about removing the basement occupants, where do they stay? Do they need to know in advance that they are being removed? Its all the preparation to implement this which I’m not familiar with.