Investor for a few years now but Biggest fear was buying into a saturated market and then having rents fall leaving me in a position where  I had negative cash flow each month.  

Ideally, this is only good news if you're trying to saturate an area.

It must mean that the market is so saturated with competition that there is more money to be made selling books and speaking at events.

I would think there would be a big market for it in LA unless it is over saturated with airbnb rentals in your area.

The neighborhood can quickly decline if what they tell you turns out not to be true and it becomes saturated with rental properties.

It is a very slow leak only when the soil is severely saturated with water. 

Real estate is pretty saturated especially in desired areas.

Welcome to BP @Toree McQueen If you are a sponge this is the place to get saturated with Real estate info.

What I'm wondering is, how does anyone make any money building homes/developing/investing in the market there when it seems to be so saturated?

I'm in California (Los Angeles area) and I have been thinking of investing out of state for years. 2 reasons why South Florida appeals to me at this time: 1. the LA market is ridiculously saturated with investors, competition and I what I feel is a bubble. 2.