Creative ways to cash-out

[Richard Helppie-Schmieder]

Hey! I am usually pretty good at creativity (check out this story https://www.biggerpockets.com/...) and have also done some other crazy things, but I am now looking for some solutions from all the brilliant people here at BP for a case specific scenario. 

I own a specific property at 50% equity with a partner and we carry a note on the property as well. Each of our equity interests is about $30,000 as the property sits (if we sold it today we would each walk away with $30k). I cannot go through a cash-out refinance as our debt-service coverage wouldn't meet the banks terms, but I do want to grab about 15k of the equity out in some way. I was thinking to possibly have someone loan against the property at a fixed interest in second position, but I really want their interests in equity to be aligned with how the property performs without being on the mortgage or on title. 

Does anyone out there have creative ideas to do this? Maybe some sort of ninja Sub2 deal without taking over title or a completely new agreement that bases their interest off of how the property performs over the next 3 years. Please share any crazy things you have done in the past or any crazy ideas whether you think they can be reasonably done or not.