Stars on The Rocks Airbnb

I own two airbnb's. I am in a terrible mortgage on one of them, and in fixing up the house and turning it into a successful earning airbnb, I was forced to destroy my credit and spend every dime I had renovating and bringing the house into the luxury rental space. Now I need to refinance and my credit will not allow it. I am looking for someone to either co-sign my refi for a cut of rental earnings, help me pay off and fix my credit so I can refi myself (around 80K,) or work out some kind of co-ownership arrangement where I can keep the house I have worked so hard on, and get out of my current mortgage which has a balloon payment on 700000K coming up in November. The house now earns enough to pay for itself. I just need help getting out of my current mortgage! I am a television writer and producer and the industry has taken a hard hit in the last two years. Between that and the fact that I earn money in a non-conventional way, refinancing in time is proving to be very difficult.