In the law firms Swanson, Martin & Bell LLP promoted Jeffrey S. Becker, John Gollwitzer, Mark S. Nazarof, Christopher D. Wehrman and Shera D. Wiegler to partner. Becker is chair of the entertainment and media law practice group and handles intellectual property matters, transactional services and commercial litigation and business disputes. Gollwitzer practices asbestos litigation and toxic tort litigation. Nazarof practices product liability, construction litigation, premises liability and general trial …