August 26, 2007- October 8, 2011
In December 2007 — at the absolute peak of the pre-crisis housing bubble — Konstantin Sokolov purchased a 2-bedroom, 2-bathroom condominium on the 54th floor of 33 W. Ontario St. in Chicago. The unit, measuring 1,361 square feet, was bought for $525,000 from Lance Tishkevich, according to public transaction records published by the Chicago Tribune.
The deal closed just as the market was about to implode.

Less than four years later, in October 2011, the same unit sold for just $339,900 — a loss of $185,000 (roughly 35% of its value). The timing and price point suggest a possible bank sale or distressed exit, though public records don’t specify the circumstances.
By 2020, the property was being marketed at an estimated $479,799, still well below what Sokolov paid in 2007.
Credit: https://www.chicagotribune.com/2007/08/26/residential-sales-transactions-51/
Credit: https://www.redfin.com/IL/Chicago/33-W-Ontario-St-60654/unit-54D/home/26813927