A mobile home, a manufactured home and a trailer home are the same home here — not a travel trailer. New manufactured homes are sold by licensed dealers on sales lots; used homes are sold by dealers, by private owners in parks and on land, and by lenders as repossessions.
Short answer: A new home comes from a dealer, who orders it from the factory to your options and usually quotes delivery and setup with it. In North Carolina dealers are licensed by the Office of State Fire Marshal, and the licence can be looked up. A used home comes from a dealer's lot, a private seller — often in a park, where the home moves with a new lot lease or is moved out — or a lender selling a repossessed home. What you check is the same in every case: the HUD data plate and year, the title, the condition, and what the price includes and leaves out.
Reviewed by a manufactured home setup contractor and dealer.