calling owner for sale sign ?

[Ricardo A Perez]

Hello BP Family, 

  I found a home that has a "for sale by owner" sign in the front yard. I wrote the down the address and phone listed on the sign. When i got home i started to do some research before giving them a call tomorrow. The for sale sign list's it as a 3/2 single family home but, i checked realtor.com and county records they have it listed as a 2/1.The question is when i visit the property and have a conversation with the owner should i bring that up and ask if the additional room and bath were permitted ? and if not use that in my negotiations for purchase price ? i plan to fix and flip this home or whole-tail this property if i can get at a good discount. FYI this would be my first deal.