If so, it seems like they are not marketing to the vast majority of potential buyers (because even these big players have <20% market share in any given market).

You can engage another PM company to manage the new properties and this will give you a backup/bench player and keep your checks and balances.  

The team wouldn't succeed if it didn't have the right team players in place responsible and executing on their roles.

One thing I'd recommend to ya is to get around the MAJOR PLAYERS. 

A big agent player in this space is going to do 100x the volume of the unlicensed wholesaler types.

Starting out I strongly recommend buying a performing note so you understand the process and players.

Best way to pierce into Austin as a newbie is to network with other big players and top brokers. join as a LP on a deal to learn it while building your portfolio. if you want a place thats hot but less espensive then north dallas ftworth.. if you want great value add we can help you here in san antonio

We are about to finish an identical property next door to this one and rent it to more baseball players.

My strain of thought is - when the big players buy lands in the millions and the construction go in the tens of millions I'm sure someone lend them money for both land and construction, is there any solution for a he little guy ?

Seems to me a lot of big players spend 6 figures per month on sophisticated marketing campaigns and dominate the market with another smaller group who do a few deals a year followed by about 90% of "wholesalers" who don't do anything.So I'm curious, why wholesaling?