I recently read that Thornton was up and coming because it is midway between the tech companies in Denver and the tech hub in Boulder. 

I'd look at the edges around the Detroit Shoreway area, edges around Ohio City, Tremont; anything in Old Brooklyn - also anything close to University Circle (Cleveland Clinic, University Hospitals, Case Western - major cultural hub + employment center).  

I've observed time and time again that secondary and tertiary markets, when selected without compromising on rental demand, laws, and tax/utility expenses, are as operable as major hubs but with more opportunity to swing a 10-cap or above. 

I know the area has plans to invest into developing the job market and increasing its reputation as an industry hub, and I'd love to get some insight on what towns/counties you are seeing the best long-term buy and hold prospects?

Other property educators in UK are:Touchstone educationThe Property Hub Sourced (learn)Samuel Leeds Hope this is useful!

So that will become the hub for everything.All the above said, this is just what I am doing.

A book also isn't going to tell an investor that a new transit hub just opened near XYZ, and what they might mean for renter supply/demand moving forward 2-5 years.

I am an industrial broker with a large shop and we are seeing increasing barriers to entry especially in in-fill locations with little to no vacancy, however development opportunities by big players such as Opus and Duke being created due to a need for distribution hubs and the e-commerce effect.

An option you might want to consider is short term rental (Airbnb, VRBO) since it is so close to Legoland, you have families visiting that area year round, and one good advertising advantage is since Winter Haven is central to Tampa and Orlando, families can use that location as a HUB to visit Busch Gardens, Universal, Disney etc.Of course if that was an option, make sure to check local rules and regulation for short term rentals.

Have been analyzing some properties and looks like I can get some cash flow out of it.1) Have any of you experienced either a growth in value of the property, OR the amount you are able to rent it out for based on an incoming Transit Hub ?