Ensure that you have explored different lenders and loan products to secure the best terms and rates for your pre-approval.Property Management: Have you considered whether you will manage the property yourself or hire a property management company?

It's been a difficult time with the rates where they are

I think you hit it on the head - depleting your cash is, in my opinion, a calculated risk worth taking due to your savings rate.  

Finding cash flowing single families is difficult given the interest rates and competition with owner occupants.

@Travis DalkeThere are 3 main parts to a seller financing deal: down payment, interest rate, and price (4th would be the term).

I do not want to refinance the property because of the current interest rate with the owner-financing. 

Each property had a value-add opportunity for each of them so I could have purchased them for a discount.

It is found here: https://docs.google.com/spreadsheets/d/1EMfiBygtsfhWk7zm8bKc...The property is here: 217 NW 14th St, Pompano Beach, FL 33060 | MLS #F10434086 | ZillowI sources the property and got comps from Mashvisor, which estimated that rent would be $6258/mo w/ 93% occupancy rate. 

If the rents end up being taxable in the organization, they'll actually be subject to maximum income tax rates very quickly - much faster than if you just did this personally.There are groups now starting with "socially responsible" investing - effectively a standard partnership/syndicate that is "investing for good" - that would likely be a better structure to avoid 501(c)(3) headaches in a for profit venture.  

Most lenders will follow a 5,4,3,2,1 Step-down penalty for the lowest rate.