All City records point to the sister of the deceased as current owner but the Title Report should reveal any title insurability issues.

A five minute search on BP will reveal numerous people whose ADU was valued significantly below the cost to add (or at least the hands off cost to add).

Your lack of understanding is revealed in the advice you give.

A Google search of the owner might reveal alot.

So without revealing the neighborhood you like so well, are you willing to say what a "perfect neighborhood for wholesaling" looks like to you? 

I thought it was good, spoke a lot about systems, but I was under the mistaken impression that some of those systems were going to be revealed. 

More often then not the property will be in a high crime area, and the local police reports reveal shootings, homicides, assaults, etc...Still I'll go drive to the property at night and my gut tells me pass.

You can't expect people to answer 20 super broad questions on a public forum, especially when some of those questions involve revealing proprietary data and information.

I assume you are concerned about revealing the house is vacant, I would recommend using FakeTV (and a lamp with a timer).

The inspection revealed a handful of electrical issues that need to be addressed.