You don't need to know everything to get started; you need a foundation to build on, and the rest will come through experience and then refining your education.You can build a basic understanding of investing in 3-6 months.

Fast forward two months, and now the property is rented out, so I decided it was time to refinance.

Or pay myself back with a heloc and then refinance out of the heloc later on?

Every challenge taught me how to refine my processes and maximize both guest satisfaction and profitability.

If you pay cash for something and are able to refinance at a rate that makes sense to pay off your HELOC, that's the only thing I could see making some sense. 

If a cash out refinance, many lenders will allow the cash out to satisfy the reserves requirement.DSCR lenders generally let you vest either individually or as an LLC.

Then refinance it.I just don't have that amount of "cash" but i have enough as collateral. 

Rates will at some point allow you to refinance.  

Focus on undervalued properties, prioritize high-ROI renovations, and refinance to pull equity for future deals while maintaining 20-25% equity.

If you go the rehab route, you can refinance when finished with the work into a DSCR loan to get all/most of you initial investment back if you found a good deal.