I tried a few different wording and when I used one almost identical to yours I got many people calling to buy because they thought I was selling.  

They will have to sell it to you because you've now established the new comp for an identical duplex and asking for more will be futile.Good luck!

I ran a criminal check on a workman  recently hired & found out he is a convicted felon & was in prison until 2011 ( crime-identity theft).

There is always the possibility of mistaken identity. 

In 5 years and multiple gut-renovated 3 and 4 family properties in the same neighborhoods I can tell you that the various costs associated are basically identical property-to-property. 

I’m active duty US Public Health Service and interested in someone who understands military pay and customs since my service has similar/identical components.

If you're a seller and you have 2 offers that are identical except for: 1st offer waives inspection and doesn't see any units, and 2nd offer requires inspection and must see all 4 units.

Purchase price: $80,000 Cash invested: $20,000 This property is part of the other Darby Terrace property package, with identical numbers to the other property my investor was very keen on picking this one up as well.

It doesn’t understand why identical houses have a 50-100% price difference. 

The house next door to me is almost an identical build without the third floor studio apartment and it just sold for $245,000.