Justin - My singular piece of advice:When you are pricing your potential purchases.  

My biggest piece of advice is to spend time interacting in the forums.

But I have not run into any.You may want to see who the big wholesalers are in your area buy one lunch and offer to work for free for them bird dogging or whatever they need done... this will teach you bizz and if you bring them a deal they will normally cut you in for a piece if they buy it or flip it.

If I'm not mistaken, Jay walks you through for a piece of your profit.

@Vinh Huynh, managing this yourself is a piece of cake.  

I see many investors just rush it and focus on the owner financing piece and then end up buying a property with no equity in it and are stuck trying to sandwich it or sell it later.

I remember hearing my parents talk about this piece of land or that building lot that they could have bought years ago and it is now worth 10x the price. 

I would love to hear from some seasoned investors, the greatest piece of advice you'd have for a rookie like me.

The piece of the property that he is considering sectioning off would in essence be splitting the land in half.  

As a new member one of the best pieces of advice I received was to setup some "Keyword Alerts" to get into conversation in your target area.