I can tell you from my own experience that I am looking for a property that is professionally managed and if I came across your property and an identical property that was professionally managed and charging $100 more a month for rent id choose the professionally managed one.

Only a court ruling can compel the trustee to divulge the identities of the beneficiaries. 

To be fair, there is a process to seek a zoning variance or reclassification but that's totally dependent upon the whim of the City planners.When looking at two identical properties with only different zoning, to avoid the case stated at the outset, pick properties which allow MFU development.

Alas, the one cash offer is lowball, as it often is.No normal human can pick between 20 nearly identical choices & if the highest offer doesn't close then it doesn't matter that it was the highest offer.So you, a listing agent, flip to the preapproval letters on all 19 financed offers.You call the phone numbers appearing on all 19 preapproval letters and take note of who either picked up the phone, or called you back before sundown.Boom, just narrowed it down from 19 to 2.You drive over to your clients' place at 8 pm on Sunday,You present the 2 financed offers and the 1 lowball cash offer, and ask them to pick one of the three. 

I would think if you didn't have a way to actually verify the tenants identity and addresses then you would still need to call previous landlords.

The couple upstairs that is man and woman can be late but not the same sex couple in building 2.That is why businesses have policies, so every tenant is treated identical because if not you open up yourself to all sorts of issues.

I've made up names to protect identities.

You can't compare two identical houses, using a market in California and compare it to a market in the Midwest, and treat them both the same. 3 - Probably the most important reason this whole thing blows up is this.  

One of the identity theft scams is grabbing people's info to open cell phone accounts to conduct illegal business with.  

I know that's a small thing but I put 25% down on 4 identical units that's a mistake I would have made with 4 times the downside.