Duplex too good to be true?

[Raffaello Cervera]

Hello to everyone, 

This is my first post on BP after being a long time on looker from the sidelines. My name is Raffaello and ive been trying to analyze a lot of deals to sharpen myproperty analyzing skills. 

I came around one duplex for sale that the numbers look too good to be true. 

It is a REO duplex for sale in an up and coming part of Miami also it is close to downtown Miami

Sales price $245k 3-1 side and smaller 1-1 side

3-1 side rents for $2,500-$3,000

1-1 side rents for 1,500-$1,800 

tax is $4k/year 

I would be putting down 20% or 62k which would put my monthly payment at around $1,700/ month 

the house looks to be in decent condition I am a also a realtor so i am going to pass by the property to see it to make sure there isnt anything wrong  

My only concern is it has been on the MLS for about a month and no one has jumped on it, it would cash flow about $2k/ month is there something that I am missing?

Could this really be that good of a deal? i would love to hear  someone else'sopinion on this deal 

thanks to everyone in advance!