SF for MF, industrial for residential, raw land for duplexes it all works as long as it is investment real estate.This leads to the second part of your question - how long do you have to hold the property before you can 1031 it.  

Some "Guru's" develop followings based on fear tactics, motivational speaking ability, and raw charisma. 

From that you can see what your maximum offer will be for raw land.   

I don't like to speculate or make assumptions so I figured I give you guys some raw, real  numbers according to realtytrac.com.

With raw land, there are only a few questions that you can askSize of land, zoning, any known contamination?

are there better ways to get leads (keep in mind my time is limited to the weekends and after 7 pm ) I think the other posters are assuming that you are considering purchasing raw data.However, not all leads are the same.  

I've looked online and can't find just the raw material. 

Just started my very first marketing campaign and somehow I've been contacted by a seller with just over an acre of raw land. 

You are mostly limited to vacant lots and raw land when it comes to the 6 month redemption period and even then, by the time you get the deed from the county you are probably looking at closer to 8 or 9 months, at least in my experience.

Fortunately we don't get very deep freezes here in Tokyo like they get further North, but - raw concrete does soak up quite a bit of water, so I'm betting it would eventually get through.