You own both the home and the land (easier to finance).
Many states require the title transfer to be notarized.
Used mobile homes can hide structural issues. Never buy "as-is" without checking these specific areas:
Low purchase price, but moving costs can exceed $5,000–$15,000.
These are "personal property" loans for homes in parks. Expect higher interest rates. Personal Loans: Useful for older, cheaper models.