The hard part is getting, and keeping a list of great subcontractors that will get you on budget (but you need to know what budget you’re shooting for to sell 1400-1500sf for 225k.  

For your project, I would not think you could find any financing unless it's from a private party with higher interest rates, and even with that I am told they are reluctant to lend for mobile homes. 

When I run the numbers in our market both parties would make their money back within the first year.l with amazing returns.

(I.e. original lease states a 60 day notice is required for either party to cancel or change terms, you must give them 60 days notice with the new lease terms.)

In the mean time, I wanted to see if any investors were looking for a third party to walk through their rehabs to verify that all work had been done as agreed upon.

After listening to a lot of the BP and other podcasts about short term rentals over the last year, I’ve noticed avoiding/shutting down parties seems to be a common pain point for hosts in metro areas. 

They can add an addendum that at each full moon the landlord must put on a pink tutu and dance in the front yard of the rental for 15 minutes (actually there are times I've wanted to add such to the leases of some of the tenants I've had) but if both parties don't sign this indicating they agree to it it means nothing legally.

If you raise money for your down-payment then you functionally have a 2nd mortgage to pay back to a private party. 

Or maybe they just pay a monthly subscription fee for a 3rd party service provider who helps them source investment leads that meet their criteria."

The rental income CF portion, that part is the work.