Failures are probably based on unreasonable expectations as far as the timeline, we are an instant gratification culture.  

No matter what your local law calls for, it is unreasonable and frankly silly, to fail to provide a mailing address for the tenant to send documents.

School of Law, so it's not an unreasonable scenario), and they tell her about housing discrimination and how she can't be treated differently just because she's 23 and Unit 6 is 89.  

ConstitutionFourth Amendment - Search and SeizureThe right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.

However, bad tenants can be everyone’s nightmare- they might pay their rent late, cause havoc with the neighbours, treat an owner’s property like a tip or unreasonably demand endless costly repairs.

but I don't really want to risk going through a tough escrow with a novice buyer trying to shave me down with contingencies and unreasonable demands related to inspections... especially in a softening buyer's market. 

Unfortunately they were sold with “tax abatements” which burned off after 7 years and yielded a totally unreasonable consequence.

You sound unreasonably angry and upset.

So here’s what it all seems to boil down to in my opinion...What @Lenza M. asked for wasn’t unreasonable.

And it was a great start to a relationship that is still alive years later.On the other hand: I had a licensed broker recommended by an investor friend in Indianapolis, flew out there to look at the market and meet him, partnered with a local to me friend who had done local flips (that was my first flip, but I was no REI novice) and has an advanced accounting degree, also had the friend vet the broker and each property he brought to our consideration for a flip, finally agreed on a specific property after months of turning down others, signed a very specific (our attorney-drawn) contract that outlined project management responsibilities by the broker, kept in touch through the (delayed) process (and numerous excuses that - at that time - did not seem unreasonable,) flew out there again when the rehab was completed (and found a bunch of issues “on the surface” that he quickly addressed,) only to eventually lose a lot of money through the broker’s apparent negligence and downright fraud...