Commercial transaction and litigation firm Nisen & Elliott LLC has combined with Carlson Partners Ltd., adding three attorneys from the latter’s shop.The firm — which will operate under the Nisen & Elliott name — has more than 20 practice areas and 23 attorneys with clients ranging from high-net-worth individuals to multinational corporations to small-to-medium-size closely held businesses.All Carlson Partners clients made the move, such as First Midwest Bank and Palmer Bank.Nisen & Elliott’s other clients …