I was their best option.

An option is an encumbrance, buy the property subject to the option at a lower price, if the optionee buys, you sell, if not, you still win.A deed in lieu of foreclosure can be had after the note is purchased at a discount.You can buy the note at a discount and have the owner refinance, same with installment contracts. 

We are trying to think of all our options for a rehab loan.

You should be able to go as low as 10-15% down payment with your experience.Ground up Financing: Most "ground up" financing options require a bit of experience - 3-5 exists (rehabbed & sold or rehabbed & refinanced in the last 3 years).

If they Counter, you have the same 3 options to respond. 

The other option, how I found BRRRR and learned some basics of it, was the Bigger Pockets book.

Going to try out PayRange, the Shine Pay is slightly more expensive and the one quote about the 20 units appears to be from shinepay as it is the only qoute they ever made... not sure which is better but both look like good options

Are there other creative options I haven’t considered?

Obviously the numbers and location would determine which is the best option for me but these would be my preferred methods. 

Option 1.