Financing a mobile home / double-wide trailer

[Doug Quist]

My daughter and son-in-law have found a mobile home / double-wide trailer near his college and would like to buy it.  They had been looking at a duplex to house hack, but it is WAY more expensive and needs WAY much more work and is also further from school, so the mobile home is more attractive to them.  No offer has been made and they have only just now seen it because it was an "Open House" as we drove by.

How does one get financing for one of these?