Wholesaling Land. How is it done?

[Jessica Martin]

I've read some stories and even spoken to a few people briefly who said they got their start in wholesaling through land instead of houses. This was kind of interesting to me, but I  hadn't really looked into it too much until now. My husband and I just got a call from a guy who has 25,000 sqft of land he is wanting to sell in North Houston Area. 

Q 1: As a wholesaler, how do I determine the numbers on this? Do I still use recent, local sales of vacant land? This particular land does include utilities, so how do I fact that in? How do I know what to pay per sqft vs what I can sell it for? 

Q 2: Who are primary buyer for things like this? Retail or commercial? How do I find these buyers for something like this?