In addition to real estate I work in data analytics and app development.

Keep in mind if you are going to turn over houses quickly and they require heavy or even moderate level renovations, having additional liquidity outside of the down payment money will allow for you to advance the renovation quicker and get to the refinance event quicker.

Plus if you have all your income going out the door on debt service how do you plan to finance these new kitchens and luxury floors?

And I only had more debt to show for it.

Please make sure you understand how short-term debt works if you're working with a hard or private money lender.

Keep in mind you can NOT replace cash with debt, meaning you can not replace the cash you will be pocketing from the sale with a greater mortgage on the two replacement properties.

Additionally, I plan to sell both houses FSBO (For Sale By Owner).

This is all assuming you have the income, reserves, capital, and DTI to support this route in addition to market rent being high enough to cover you.

I'd love a few cashflow heavy seller financing deals; however, it's been purchase + rehab loans on 5-10 year fixed debt.

Something I always recommend my investor clients to do is require the tenant to carry renters insurance with you/or LLC listed as the additional insured.