I owned an identical 2x3bd floorplan duplex in Sacramento for 10 years and I have plans to sell for a modest profit when RE market gets better.

The unrenovated identical duplex next door rents for 900, but that also has a 1-car garage.

Does your advisor think that 2 identical properties, one in pristine condition and the other needing a gut rehab are equal in value?

I came across 2 identical duplexes across the street from one another owned by the same seller.  

I know that on the same block as my 4 plex, another nearly identical 4-plex recently sold for $192,000.

Very similar product, actually identical product.

I'd say the parallel is pretty much the same, in fact identical as the terms were probably adopted here putting the same responsibility on a MB.Stocks and bonds are rated, your mortgage is not so it will be very difficult to peg any mortgage as being suitable for almost any investor unless they have had mortgage lending experience.

My tenant had duped the PM by using a stolen identity, and then proceeded to steal all my neighbors' identities while living in my house.

On the right box labeled "Enter keyword or ID", enter "safe mortgage".

I believe as a part-owner, that it would have to be a tenants-in-common (TIC) set-up, and the name as on title for the relinquished property be one of the TIC parties (name must be identical); this requirement seems to fail to hold in the scenario you described.