2) how well would a 2 Bedroom / 1 Bath duplex (same configuration on each side) rent?

I've done the same for recently sold similar condition and configured properties to get idea of cash on cash returns in neighborhoods I'm interested in.  

I've done the same for recently sold similar condition and configured properties to get idea of cash on cash returns in neighborhoods I'm interested in.Mostly between $200-400K.

It's a strange configuration, and I haven't gone to see the house yet, only saw pictures online. 

What drives the property type, location, configuration and rental price range is the target tenant pool.

@Lou Ruggieri$100k is a good start for down payment of 4plex, which is the best multi units configuration.

We both by happenstance posted on a duplex with 3/1 and 2/1 configuration.  

One is a 3 bed 2 bath renting for $855. the second is a duplex property with two 2/1 configurations renting for a combined rate of $1280.

Here's an example of a recent valuation in BK Heights:The townhouse is 6,000sqft and has 8 units in total.If kept as is, there will be 8 1br apartments of 650sqft each $3,350 x8 x12 = 321k is the annual incomeNow if renovation costs allow, seller could convert it into 6 big 2br apartments that would collect a much higher rent:$5,000 x6 x12 = 360k would be the newer annual incomeThere's a high demand for 2br in the area, so he could fill the vacancies quickly and sell at a considerably higher NOI.Also, an appealing configuration is legalizing the basement, keep it as a rental unit and convert the remaining space into a single unit.

That is because the water pipes in the duplex probably are not configured to flow to each side separately.