I think Airbnb's biggest assets were hosts, their motivation to build long term positive reviews, 5 stars, etc... and reputation, that he destroyed.As for looking to build a 3rd platform after airbnb/vrbo, No, I don't believe that's the issue despite all the imperfection.

Confirm that the provider has a pristine reputation (e.g.

It seems I have some work to do in building a reputation & establishing relationships with brokers.  

They also don't want a bad reputation of putting dumb offers in.

Any institution selling a note could be liable for the actions of the note buyer, hence why mom and pop note buyers are only buying mom and pop notes, and not in bulk or from any reputable financial institution. 

I am starting to explore other options and the obvious choice is Philly.

If you want to explore out-of-state, you want to read David Greene's book and see if it could work for you.

Quadrant homes, along with a other reputable builders have built similar homes, less than a .25 mile away for $1.6-2M range and at least 5 homes have dropped prices $120-165k.

@Kalvin Wilburn Just like anything, yes do your research and find a reputable hard money lending company. 

There are certainly well explored downsides to STRs, but what you're highlighting here is the trump card in this very moment!