If tenants aren’t covering the cleanup, who’s left holding the bag?

How will appraisers, lenders and tax authorities account for this? 

As @Theresa Harris said, the exception is when you can't put it in their name or when there aren't separate meters in a multi-family.What area in New Jersey are you focused on?

If they sent you an email saying that your daughter had to be moved out before the end of the lease to avoid any other charges aren't they acknowledging receipt of a 45 day notice?

(You’ll be stuck under market for all time, so maybe different strangers but same story.)3) if you aren’t using a property manager I’d suggest you ask one how much they would charge and what it would cost you before doing anything.

If it works as a traditional rental, everything else is gravy on top.Those aren't the numbers that matter:Property ValueCash in (DP)Mortgage payment and term in yearsrentmonthly expenses 

Requiring all occupants aged 18 and older to fill out an application serves as a way to further vet the individuals who will be residing in your property, even if they aren't directly responsible for paying rent.

The harsh truth is that you aren't looking out for your aunt.

I buy most of my materials from Home Depot- because they are everywhere and the prices aren't bad.

CPAs aren't the enemy.