Thank you for posting here and sorry that this property has already gone off the market.
As mentioned, above, your family's best bet, absolutely, is to find a buyer's representative to assist you in finding and purchasing a property.
Your buyer's agent will assist you in finding a property that you like and throughout the entire process.
We have a number of experts who specialize in this area and the surrounding neighborhoods. Give us a call any time at 312.242.1000 and we will happily put you in touch with an expert to assist you and make this whole thing a lot easier.
Thank you, again!