But all societies have at least an unspoken order of citizens and socio-economic classes.

You're discounting the very real possibility they could get low bono or pro bono representation through either the local legal aid society, who typically hates landlords, or a local chapter of the ACLU, if they are particularly sob-worthy people.But that is beside the point, as I think your recommendation for question reform is a good one.

I haven't even looked at whether this is allowed in our city and even if city allows I highly doubt our historical preservation society would approve...last year the house across from my rental got into a legal mess with the HPS on the window trim color...ugh...In this property I have six spots.Last tenant parked in that spot didn't complain.I was in that spot for a couple of weeks last October and didn't notice and I notice everything. 

Of course, you cannot discriminate as a matter of law, I am not speaking about dumping potential/capable tenants due to personal issues or perceptions of people because of who or what they are.  

Mess & style of tenant will 'color' the perception of the prospect.Move'm out, clean up/paint as necessary. 

It's a sad statement about our business and society in general.The reason bad tenants even exist is because our business is riddled with hobby landlords that do not care about anyone but themselves.

You are right no one trusts a landlord, Landlords are not a trustworthy segment of business society, akin to the loan shark business. 

I think books like this will be the new darling of the liberal professors ( taking the place of books like Nickled & Dimed)  as our society is being told that no matter how many bad decisions you make including but not limited to failure to get the right education or job skills...having kids before you can afford them etc...housing is a RIGHT and an entitlement and at a price they think they should pay...it can't hurt to read a book like this to understand the changes that may be coming...might make an investor want to consider other options than buy and hold...forewarned is forearmed

The checklist creates the perception that I am going to be picky on move-out, so it invites more issues to be reported.

Unauthorized practice of law in many states includes giving advice "with either the perception or reliance of knowledge of the field of law, or the reasonable likelihood that someone may come to rely on that advice."