Duplex Analysis in a B neighborhood

[John Stockinger]

Over the weekend I met an agent with a few properties yet to hit the market. This one caught my attention and wondering if I'm off base on the property

• Duplex, with both units being 2/1
• B neighborhood in a growing area (is adjacent to a larger road however)
• Asking $259k 
• Both sides currently rented at $750 month to month. Market rent would be more like $850-$900
• Aiming for 20% down

With all of the above and at current rates it seems like they're overpriced by about $60k. 

If they were asking $200k it would cash flow $90 dollars a month and there would also be some upside to raising the rents. 

Is there anything else I should be considering?