After reading the bylaws, they do have a right to enter in an emergency, but this is not an emergency to visually inspect smoke detectors.  

He also looks for other issues real quick like the furnace filter to ensure it was changed, that smoke and CO2 detectors are not disabled, etc.  

Hi Theo,I use the Nest smoke / CO2 detectors.

The basement is currently flooded most likely due to a failed sump pump.Buyer is responsible for Title V, smokes, CO, etc.The most recent 5 BR in Chiltonville fetched $2500/month, while a 1 BR should be $1300 - $1500/month.  

I walked into the house and the house was filled with heavy oil smoke.

Are there any Chicago landlords out there familiar with smoke detector code in Illinois/Chicago? 

Our inspection uncovered that the smoke detectors were battery powered.

You can take an action against all of the parties however;  you will find that there will be diminishing returns after the smoke clears.

I arrived home to a strong smell of smoke, and found the right-rear burner of the gas range turned on, with two very charred chicken drumsticks sitting on a white ceramic plate.  

I have a pretty sensitive nose, so for me this is the process to eliminate just about any smoke odor:1.