Unless you can pull a permit and have this job inspected stay away from this.
I am guessing you can't pull one.
#1 is the liability you will incur by just touching any part of this especially if you are not licensed and don't have liability ins.
Anything you do could affect the property and / or lives of others in the building as well as your own.
The land lord needs to call a competent, licenced electrician in to correct all this.
Just my NSHO.