Johnson & Bell added two associates to the firm.Kristen N. Kennedy joins the health care practice group and concentrates her practice on defending medical malpractice cases involving hospitals, universities, physicians, nurses and nursing homes.Aleeza F. Mian focuses her practice on municipal liability with clients that include municipalities and law enforcement officers.• Laner Muchin hired Marron Mahoney as of counsel.She focuses her practice on representing public and private sector employers in numerous areas …