Taft Stettinius & Hollister LLP will gain an office in the Twin Cities and 135 attorneys when the firm finalizes its merger with Briggs and Morgan P.A. early next year. The last Taft merger took place in 2014 when the firm combined with Shefsky & Froelich in Chicago.Cezar “Cid” M. Froelich, partner and chairman of Taft’s Chicago office, said the firm wanted to have an office in the Twin Cities — which contains the …