Couple of broad questions from a newbie

[Tom Howard]

This property was brought to me from out of town for a flip potential. I am brand new to the game and was hoping to get some advice/input from the BP community. My first question is, based on the couple of photos below, what major issues are seen and also costs involved to rehab, mainly the first picture (exterior). 

My second question is this was a duplex before, should I stick with that (duplex) as a buy and hold, or turn it to a SFH?

Really appreciate any feedback I can get!