Would you rather build new or bye with upside!

[Beau Romstedt]

Hello everyone I would like to hear some advice or some input I have for lots i can pick up for about 

$14,000 That's a total of $60,000 I can get 4 duplex built for about 120,000 apiece so that's roughly 480,000

And about $75 a square foot so basically I'm starting off brand-new with a total investment of 540,000

With a Gross total of rent at $9600 conservatively. 

But I also found a multi family that rents for about 600 a room and there's 26 rooms which is a Gross total of $15,600 in gross rent but their asking price  750,000 but it's not in the greatest neighborhood so basically my question is buy new in a excellent  A plus neighborhood or invest in a C+ neighborhood ? With upcoming maintenance issues as well.

Thanks Beau