Law firms in Chicago and across the country are generally using less space.That is one of the key findings of a new report by CBRE, a commercial real estate services and investment firm headquartered in Los Angeles.The report found that, in Chicago, 65 percent of law firms’ real estate transactions between quarter one of 2016 and quarter two of 2017 have resulted in a contraction of space with firms reducing their space by 23 percent on average.The findings are based on CBRE data from the top 75 percent of real …