Scott The Book on Flipping Houses, The Book on Estimating ReHab Costs http://www.biggerpockets.com/flippingbookCouple good reads  9 Reasons You Couldn't Find A Buyer For Your Wholesale Deal Don't Start Wholesaling Until You Read This: Wholesale Advice from a Fix and Flipper How to Start Wholesaling: Getting Past The Education and Into the FieldYou might consider Niche or Specialized Housing like student housing.

Alot of changes out there, some states have made some special rules that effect lease/options.  

Investors can operate like a Special Forces operator in the battle, they can have greater knowledge of the battlefield, be able to move quickly, operate silently, change tactics quickly, adapt to conditions and strike, while the big boys move in mass, like an invading army, bringing nothing to the community but pillage and plunder.

Look for recent (past 2 years) of warranty or special warranty deeds transferred where no deed of trust was filed, that is 90% of the time a cash buyer.

I use a realtor who specialized in short sales because the banks pay the commissions no matter what.

We are dealing with a local bank who specializes in rental property loans.

If crowd funding portals do not specialize, i.e., promote investment in almost any space that they perceive as meeting their vetting criteria, how can they expect to generate returns anywhere near the Specialized VC firms?

Keep up the good work, you will find the answers to your question as you go and explore the world of real estate. type in the search box, listing to the podcast  specially the lastest one, and read Brandon's new book (which i just down loaded The Ultimate Package) for extra learning.

should they all specialize in something different or do i want a well rounded one or whaaaaaaaaaaaaaat.

You need to find an agent that specializes in vacant homes and/or landlord insurance.