Saying he’s really enjoyed his time working in the City of Kingsport, City Attorney Mike Billingsley dedicated 28 years to the City of Kingsport and now the longtime city leader has announced his retirement set for May 31.A release from the city details Billingsley’s work, revealing he joined the City of Kingsport in 1994 as the city attorney and even stepped in as interim city manager twice during his career.