Michael Best added Patrick Stura as partner to its corporate practice group.He focuses on negotiating complex trading and finance documentation for investment managers and trading firms. He has experience spanning a range of investment products and capital markets transactions.• Cray Huber Horstman Heil & VanAusdal LLC has added Jim Bream and his partners — Shannon Holbrook, Mary Periolat, Tony Marqui and Shana O’Grady. Senior associate Jamie Waynee also joins the firm.• Christina Sanfelippo, an …