People who need assistance should have it;  those that abuse that gift should not.  

The main benefits of attended stores are that someone is there keeping the place clean at all times (ideally), someone is watching your equipment so people don't abuse it, someone is there to help customers when there is a problem with a machine, and you can offer other services to supplement the laundromat, like a fluff and fold service or a small store.Verifying the financials is the trickiest part of buying a laundromat because it is an all cash business.

(I'm thinking not, but this certainly makes me nervous.)Based on the legislation, can we still evict for non-payment, abuse of the property, or illegal activity in a reasonable period of time?

You simply can't trust her because she has already abused that trust.

He was very abusive and she would often have to call the police on him and he'd be sent to jail.

Countersue for abuse of process.

Your job is to keep the tenant happy, not piss them off.Notwithstanding intentional abuse, I consider plumbing, electrical, HVAC, etc. as normal wear and tear and I have repaired and move on.Next time a situation like this arises, I suggest you (or your management company) respond immediately and have it repaired and NOT stick the "repair policy" in their face because, as previously pointed out, that policy is incorrect.

There is also the cost associated with learning which is what I'm experiencing in holding costs right now. nothing wrong with what your doing over the course of 20 years this property will out perform almost any C class that never really appreciates and has constant turn over and abusive tenants.. 

So, let's say the mother gets hit by a bus tomorrow, who is paying the rent in November given that currently she pays $0 and her income is the same as your rent.

I've never heard of them actually doing that in our market, but it seems like it could be plausible if there were enough guests to abuse the network.I don't think there is an absolute perfect ironclad solution.