When the economy suffers as a result of too much of a contraction, debt payments are harder to make, etc, then go through the cycle of loosening it again, devaluing the currency so debt payments are easier to make, and banks can profit higher than before.

Why don't they provide police protection and enforce basic laws instead of price gouge landlords providing basic human services?

PHEW.. bad out fit that NW RE for allowing a client to suffer like this. 

Above all, protect your principal.

A well written management contract should clearly spell out what is expected of both the PMC and the owner, to PROTECT both and avoid misunderstandings.

Some ego on all sides creeping through to protect ones own interests (which isn't a bad thing by itself, it can just be dangerous over the long-run) that may be making the convo even more challenging to resolve. 

A key factor to a C4D seller is how there asset is being protected, so they have assurances that value remains regardless of your performance. 

I have sold subject to a number of times, and I want suffering any financial distress.  

I've done these deals and we have been able to renegotiate price and terms late in the deal, all while my client's EMD is fully protected either based on an inspection period or based on lack of disclosure. 

Definitely hire a real estate attorney to draft or review any seller financing agreement to protect your interests.Ask the real estate attorney how to handle the POA situation...can you talk with any of the other property owners who are short term renting out their properties to see what/if they have any issues?