There "MIGHT" be a legitimate reason why a travel trailer doesn't have a title / registration, usually because the the person who is selling it is flipping it and just got it yesterday from some one else and doesn't want to wait til the legit title makes its way through the system before they sell it. Or they own a rental house, and the tenant left, or was evicted and left it behind, or they just bought a piece of property and the previous owner left it behind. From there the reasons rapidly go downhill, do you want to be the one holding the bag when it turns out to be stolen or salvage..... I'd Run not walk from a non titled travel trailer (a harbor freight 4 x 8 utility trailer maybe I'd take a chance on)