In the law firms Jones, Day added Kenton J. Skarin as an associate in its issues and appeals practice group. Skarin was a U.S. Supreme Court clerk for Justice Clarence Thomas during the 2012-2013 term. He is a graduate of Northwestern University School of Law.• Marcus & Boxerman LLP moved to 20 N. Clark St., Suite 2500, Chicago, IL 60602. The office can be reached at (312) 216-2720.• Elliot Heidelberger joined Sullivan, Taylor & Gumina P.C. as senior counsel. He will continue to handle …