I have a few options I can send you.

At this stage, you can also discuss creative financing options, like seller financing, that might help bridge the gap between what you can afford and what they’d like to get for the property.

The first option will give you continuous headaches with a certain likelihood that the behavior may get worse (not paying at all and more damage).

I also worked with a great lender who helped navigate financing options, including my HELOC, to make the deal happen.

Meanwhile, explore options with other STR PMs. 

Unless maybe you have an option on the purchase of the real estate or something.

That's how I would propose it as an option next time.

Personally, I wouldn't offer SubTo or a Wrap, For reasons I've written about fairly extensively. https://www.biggerpockets.com/forums/70/topics/1227199-the-m...However, I would sell on "Lease Option" and that may work for you.

Hi to everyone,I would like to ask that ,my banks in my country (Greece) are unable to provide refinance options for the BRRRR method (Buy, Rehab, Rent, Refinance, Repeat), what alternative realistic strategies can I consider for implementing this investment approach?

All things being equal, a simpler option would be to terminate the lease with a penalty of one month's rent, agreed to in writing.