It "can" indicate a certain financially disciplined person, but there is a reason DTI determines a mortgage and if it's good enough for the bank, well why wouldn't it be smart for the landlord too? 

This will help you make informed decisions about future investments and optimize your portfolio.Scale your investments: As you gain experience and confidence in real estate investing, consider scaling your investments by purchasing larger properties or expanding into different markets.By following these steps and staying disciplined in your approach, you can successfully invest in real estate and build a profitable portfolio as a software engineer.

How can anyone predict your organizational skills, discipline, persistence, etc.?

Patience and discipline, and no you do not need to keep up with the jones'.

You'll really need to know how to run a rehab, estimate the costs and have a good team of contractors, lenders and other disciplines.

Start Small: Given your current savings, start with a smaller duplex or triplex to minimize risk.Leverage Your Skills: Your design skills can add significant value to rehab projects, making the properties more attractive to renters.Stay Disciplined: Stick to a strict budget and timeline for your rehabs to control costs and maximize returns.Build a Cushion: Always have a reserve fund for unexpected expenses during rehab and rental periods.By combining your hustle, strategic planning, and leveraging your existing network and knowledge, you can successfully transition into real estate investing and achieve financial freedom.Best of luck, and feel free to reach out with any questions!

I just wanted to take a few minutes to propose a thought experiment in hopes of sparking a discussion on what the practical strategies to achieving financial success are and what the necessary disciplines one must apply to get there.

Mostly I was thinking about the extra discipline I would need to set aside the money for TI.

Discipline and enthusiasm.

However, after years of disciplined saving, I've finally reached a point where I can make my first property (a small apartment) purchase last year.