@Orane JacobsHouse hacking in San Diego is a smart option even with the expensive real estate market.

Expand your network and explore social media events.

I too am looking at Detroit as an OOS option and would love to see your neighborhood info.

Do I have any other options?

I know it is too late at this point but should you find yourself in this position in the future I would utilize the 1031 exchange option.

Still, I would like to get the option from a respected member of this thread.

Get the cost analysis and blue prints done and work it out with the construction loan committee and start the work draw phase.The other options which can be a little easier is buy a home that will pass an Inspection/appraisal and not be "Subject to" but does need a lot of TLC/renovations and do it yourself.

But I'm currently at that thrilling stage of working towards my first deal, exploring various strategies and niches.I'm here not just to seek advice but to contribute and grow with you all.

So I have a non-primary house that is valued at $220k on Zillow (just a reference point), what options do I have to finance around 100k out of it to renovate the house?

You do have other options.