Real estate giant Jones Lang LaSalle looks to unload part of HQ – Crain’s*

The Chicago-based company this month formally began marketing more than 61,000 square feet at its Aon Center headquarters for sublease, representing about 30% of JLL's workspace in the East Loop skyscraper. Separately, another big new sublease listing hit the market in recent weeks from cybersecurity company Trustwave, which put its entire 71,792-square-foot office at 70 W. Madison St. up for grabs. The pair of new listings add more available office space to a downtown market already awash in it. The office vacancy rate in the central business district reached an all-time high of 22.6% midway through the year.