The Porches Bahamas In Chicago My Building Recently Got A Notice For Dangerous Back Porches. How Long Does Landlord Have To Fix?

In Chicago my building recently got a notice for dangerous back porches. How long does landlord have to fix? - the porches bahamas

The notice did not apply to the new tenant porches and the back door. I know I have a second entrance is a fire hazard, and therefore how long the owner to solve this problem? Also, if I exercise my porch, what are the consequences for me or the owner? Who would be punished if anyone?
This is Chicago and the announcement by the Department of Building I, BMO 1037-code.