Quote from @Sherry McQuage: Make sure to check the zoning to make sure mobile homes are permitted there; check for any hazardous waste designation for the area; will you need to have the parcels surveyed out in order to sell the size you intend? 

But I agree with you these guys pass up a ton of listing opportunities and given the amount of money they spend thats just wasting marketing dollars in my mind.. the laws are changing on wholesale assignment business model.. like most things RE its always changing and evolving. 

Stop hanging out with your deadbeat buddies who spend all day drinking, talking sports, and otherwise wasting away.

If OP has not already tried calling every we buy houses ad in the area, they should also do that. 3 days is very limiting though - no time to waste. 

Dont waste your time game-planning.

Even if you are doing volume, why would you waste your time and not delegate?

Educate the land owner on the potential profit run the numbers and go over the basic proxy and blue prints.Make sure you have a seasoned and qualified Builder/GC because they can be a deal killer with wasted time and inflated material and extended completion dates.

It will help you with a lot of people who will waste your time. 

Stop hanging out with your deadbeat buddies who spend all day drinking, talking sports, and otherwise wasting away.

Hey BP,I'll be quick since I don't want to waste anyone's time.