If a tenant improvement, authorized by the landlord, makes the space out of fire code, is it the responsibility of the landlord or tenant to pay to put space back into code?

In the past month I have been without a dishwasher for 2 weeks, had no hot water for 4 days and now they have replaced my tub
and bathroom tile without telling me, but it’s not grouted or sealed so I cannot take a shower. Communication from the property management is poor or non existent.  My [...]

My relative signed a one year lease on an apartment, and became unable to continue living here so we worked it out with the property agency that I would move in and assume the lease.  While my relative was here I found a cockroach and the landlords had the apartment sprayed. Before I moved in, [...]

Is there anything we can do if the landlord refuses to fix a noise complaint or is slandering us to others. Our rent is always paid on time.  Thanks Much