is the ionizing radiation used in smoke detectors,gauges, etc made purposely or extracted from power plants?
Tell him he has x amount of time to finish the apartment or you are going to move. Also, tell him you are going to consult a lawyer. He may break the lease without any problems. Also, he is coming after work while your there because he wants to oogle you.
The nonworking smoke detectors and carbon monoxide detectors are enough of housing violation. Carefully read your lease and if he is not complying with the terms of your lease then you have a very easy case. Also contact the housing board, or the building code enforcement/ inspector in NYC. He is also required to provide adequet heat. The other tentants not paying their rent isn't your problem, and he shouldn't be making it into you problem.
hmmm as I remember when I was in EVERY Employee was set to a Strict set of Standards of Attendance and Performance. such as Reprimanded after 2 Unexcused Absences or being Late. Quality Control and Quota's, Don't remember them Rules, huh? How Convieeenient~! Brrrrrp..!
Also, now make sure your landlord knows that you KNOW the laws. Tell him if he doesn't comply with the laws, you will report him. So, if he wishes not to comply and he wants to avoid the hassle you are going to cause him, tell him he can let you guys out of your lease without penalty (and be specific here, with 30 days notice to find a new place, full refund of your deposit, etc. and GET the agreement in writing). So, basically, learn the laws, threaten him, give him choice to be compliant or to terminate the lease for you.
