With rapid appreciation and cash-out refinancing, you will only need a small portion of that amount.Low risk of natural disasters.

Since my RE financing investor does the incentive of paying for the property, I want to make sure that my business partner is getting a great ROI in profits, so I want to make sure that money is working for the first investor making a deal with me in the smoothest way possible! 

There is currently not a mortgage on the property, but due to the s-corp ownership, refinancing is not going as easily as I'd hoped.

Both homes have mortgages, about 37% Loan to value, at an exceptional rate of 2.625% (15 yr and 20 yr respectively, both refinanced in 2020). 

Thought about refinancing at the time, but didn't do it before rates exploded.

That will give incentive to refinance ASAP whereas these 0% loans the borrower has zero interst in refinancing out early.

The property jumped another 100k less than a year after the sell as well as rents went up to support what would have been the new monthly debt if I refinanced and held. 

The divorce decree mandated that the ex-wife take action to get the ex-husband (my borrower) off of the debt and mortgage within a certain timeframe, whether by selling, refinancing, whatever.

So I have my house that refinanced in 2020 for a 15yr 2.5% rate and we have about 56k equity.

Assuming your cash flow is there, you could probably support refinancing the portfolio between 60% to 70%.