Quote from @Michael Challenger: I would connect with local people at meetups, that might give you some contacts for private money.

Why are people going for $10M or more, which is at the point you'll have trouble spending it all. 

You've only owned it six months, so you probably haven't dealt with vacancies, maintenance, or capex, but you should be setting money aside for those things.Your partnership agreement (if you have one) should address exit options.

If you paid 563k and did not make money yes thats a problem.

Forget the course and put that money on a quality vacation short-term rental.  

Sometimes I am willing to put some of my money in because the deal is just that good.

but it's not a mailbox money / cash flow situation.

If you want to make money you hustle and hustle and hustle. 

You’re paying big money to target people who explicitly want to hold on to their homes, all in the hope of convincing them to sell.

That mean that buyers could end up in real trouble if they can't make the STR work.