I'm not a tax professional so take this for what it's worth.The capital gains exclusion (section 121) is for a primary residence, since this is a spec build you would not be eligible for it.

If there, what is the predominant industry?

As every other plumber I have met is much older I think your entering an industry that will have a lack of competition and of course always needed.

Not saying it does not matter just that in Real Estate it does not matter as much as in other industries such as retail or restaurants.If it's a rental business were talking about tenants don't care at all.

I didn't have a plan to "flip" the home or anything, but my success from my first investment really brought a drive to get into the industry while I'm working my FT job.

I say that for one very big reason, if you sell now you will be eligible for the IRS section 121 capital gains exclusion for a primary residence.

I am a freelancer (in an industry other than real estate) in my late 20s with a strong desire to get my real estate investing business off to a great start.

I currently work as an accountant in property management accounting for a large multifamily developer and see the potential in this industry constantly.

The reason is that they are almost exclusively repurposed singles or duplexes

I'm a tech head, with about 14 years in the I.T. industry and reading and attending Rich Dad Poor Dad trainings, it struck my interest.