How to Purchase mobile home

[Luke H.]

A friend and her family wants to sale their mobile home. I've never purchase one so I wanted to learn more.

What are the basics I need to ask? 

What is typical cost of moving one of them?

I don't know what they are paying to rent the lot, but what is a typical cost and could I rent it out for more to make a profit?

Any advice, help, links, videos, books, etc would be greatly appreciated.

Thanks!