The property involved in this transaction is a condo located at 225 North Columbus Drive Unit 8108 in Chicago. It sold for $3,175,000, reflecting the current market value in a cooling luxury condo market. The seller of the property was Dag Kittlaus, known as a co-creator of Siri.

Summary of transaction details:

• Property Type: Condo
• Transaction Amount: $3,175,000
• Seller: Dag Kittlaus
• Buyer's Representative: Michelle Welch - Compass
• Seller's Representative: Carrie McCormick - @properties Christies International Real Estate

This transaction showcases the involvement of key industry professionals, with Carrie McCormick representing the seller, Dag Kittlaus, while Michelle Welch represented the buyer, reflecting a shift in market dynamics where pricing realism has become a significant factor in closing sales.