What is the deal with this new carbon monoxide detector law?
In short you need a detector on every floor of every rental unit. There will have to be an inspection when you go to sell, but you should not wait until then to install detectors. Landlords are required to inspect detectors yearly and must keep batteries in working order. This is a KEY POINT — do not just read what we have here. CO2 detectors are an important legal and safety issue, and if you have questions you should go right to state certified sources or your lawyer to make sure you are in compliance.
