I don't want to ruin the entire place, I just want to remove the shelves safely without harming the surrounding stuff.The mirror is huge and it is in a rectangular shape, I would like to resize it (preferably reshape).

That's why I still have the right to NOT wear my seat belt here in New Hampshire or NOT wear a helmet...as long as the harm done is to MYSELF, then I certainly don't need any Govt. telling me what to do! 

She isn't causing harm to other tenants nor the property, let her pay the way she's been paying.

It seems like there is not and no harm in doing so.

@Tamara MacDowell that's the course of action that takes you and them out of harms way for sure. 

Given that, those that are excluded from its use are harmed by those that exclude them.

I had to pay a wildlife removal company to trap them in a humane manner and relocate them to a safe destination.

The judges in both cases ruled that mold is not harmful to humans in any way.

At the end of the day, if you aren’t losing money, then no harm no foul.

As a construction inclined guy myself, I’d say keep them away from harmful dusts, or poorly ventilated areas with wet paint and find them things they can clean or trash they can clean up etc.