Is the plumbing copper/PVC/Pex, or galvanized/cast iron?  

You need iron clan evidence you were not served.

These areas are just not for those that are not experts at it.. run them with iron fist.. full time security in house management ( even then you get ripped off).. its not the slumlord its the slum tenant.. end of that discussion.. simply will never change..

It's ironic  I'd bet if any of the tenants knew that another person at their job was doing the same work for 20%  more money then they would demand a raise.

Ironically, the house still sits vacant with the lock box on it.

Ironically, it was a big deal with the six-flat owner when my four-year-old daughter supposedly (possibly) was accused by writing with colored chalk on the owner's building. 

Ironically, I'm buying a house right now with a leak from the dishwasher. 

They can simply and easily iron out any agent issues with a simple phone call or face to face discussion. 

I found it ironic these folks were savvy and wealthy enough to own such homes but it didn't occur to them to have the same considerations in advance.I also found it interesting this was prime time news worthy.

A lot of these building still have clay pipe running to the street and iron pipe inside, both of which will fail over time.