I wanted to share some insights I’ve gained while working with new construction duplexes in Indianapolis.

Wow, I love hearing about the sacrifices you were able to make to gain the financial independence. 

An Architect can look out for your best interest in the project plus can bring all the Engineers necessary for the build (Civil, Structural, MEP, Sprinkler/Fire suppression, etc.)As far as the build itself, if it's in an established city or town on a tax lot, then you'll need to go through the design and permitting process, gain zoning approval if necessary, and then build up from there.

This is a two-way interview, so have a short list of questions to ask the mentor (What books do you recommend I read to gain a better understanding?

A 2-4 unit as highlighted by others above is a great way to reduce costs of living, gain equity, and eventually move on while retaining the asset for cash flow.

When you guys calculate ROI on a rental property do you typically include the equity gain from paying down your mortgage?

Your best best is roughly break even on most properties or maybe a small gain. 

There is a learning curve, but I'm sure you are gaining practical knowledge along the way.

During that time I gained a greater understanding of real estate and what was once a small interest became a very passionate pursuit. 

If an Accountant, a CPA or a tax preparer or anyone who is giving you this advice ...... ( I am not saying anything ).Here is another think - as you are flipping properties you do know that you are supposed to pay estimated Income Tax on your gains.