A win for the investor (which can only be determined by finding out what their needs are for being a part of this and nailing it), a win for you (purchasing an asset using someone else's money), and a win for the tenants you are housing (making sure you take care of each and every tenant ethically and with respect). 

@Jason Chen I think you nailed the sentiment of the other posters. 2011-2015 Duplex's in solid neighborhoods could be found in the $50k range, particularly in the midsize cities of the midwest.

I don't know "Mary Jo" but her post is reflective of foreigners investing in capital preservation investments.

3) As a final nail in the coffin, "waiting for bank to accept and previous buyer to terminate."

Chris Martin...you hit this nail on the head.  

@Abel Sng hit the nail on the head.I'm working on a LifeCo assumption right now.

@Joe Splitrock hit the nail on the head.

Also look at @J Scott books. they helped me nail it down, but I recommend you keep track of everything as detailed as possible so you will be able to really lock everything down in the future.

Tenants are expected to hang pictures with nails, not anchors, etc.

If found vacant, they assign a property preservation co.