In the old days they used tar paper sewer pipe, then clay sewer pipe, and then finally plastic sewer pipe in recent times.

I am a quality manager at a plastic sheet lamination company.

@Brandon Sturgill,I grew up in an older home in the Chicago suburbs built in the post-war housing boom.If the existing wiring is in BX with plastic insulated copper conductors at least 14 gauge, you should be ok as long as you have continuity between the armor and the earth ground.

Buy a couple of boxes of black plastic garbage bags, some simple cookware and eating utensiles, and a lock your bedroom door.Then this is what I suggest: Instead of washing their filth, bag it in garbage bags and throw it out.

We came across several used needles, and multiple plastic baggies with little white rocks inside.

Pex, plastic or copper pipe.  

@Ben Leybovich It is a plastic viking hat.  

I would look at the plastic laminate that looks like granite. 

That is rule one for the lazy land lord buy small houses it means less work overall,So on to painting If you talk to any experienced old school painter they will tell you that you need to cut in. which is making a border around the ceilings and base boards.this is a very very important step for the lazy land lord because doing this step properly will allow you to use the roller much easier and quickly so you can get home to your couch and the game. but more important it will prevent you from getting paint on the ceilings which will need to be brushed in later brushing in paint on the ceiling is time consuming and tedious so avoiding paint on the ceiling is the lazy landlords first priorityMany old school painters will tell you to get a good cut in brush. but if you are not familiar with painting the cut in brush can take quite a bit of time, to get efficiently good results my solution buy a paint kit that comes with a cut in tool it should look like a rectangular plastic thing a ma jig that has little wheels on one sidethis device allows you to quickly do the border in record time.The secret I found to using this tool is to gently place it on top of your paint so it floats on the surface for about 2 seconds you dont want the wheels getting paint on themjust the applicator I didnt use the pole attachment I think the hand allows more control and gets you up close to the work.

Make sure you keep the temperature at that legal and comfortable lever and make sure you get one of those plastic boxes to lock the thermostat in.