Quote from @Nathan Gesner: Unkempt lawns, trashy or broken down vehicles, mattresses and trash on empty lots, boarded up houses, bars on windows, dealers and hookers on the corners, the lack of stores or gas stations, occupied properties are dilapidated, etc.Or when Google maps shows stuff like this: If those are drug zombies, as they appear to be, that's an "F" class neighborhood where nobody pays rent and structure burnouts are common.

In fact, I don't think you should charge ANYONE because it was YOU who accepted that the switch is located in a common area. 

It's actually so common that there is entire Real Estate Investment strategies built around it.

Both common issues for hosts!

You're facing a common investor challenge: learning from experience (and sometimes mistakes).

It is not illegal as long as they aren't hidden and aren't in bedrooms or bathrooms...I have two in the common areas.

The most common asset type was commercial multis 7-10 units. 

If you have hired a specialist to perform a cost segregation study of your real estate property, they will likely use one of the six most common methodologies recognized by the IRS.

The new pref equity is given priority to the original pref and/or common equity.

You may want to live in a world of Wild West, anything goes business (I won't mention the orange haired political elephant in the room) but I assure you, your ignorant, uninformed, and weak defense of this sort of activity is not common.