I agree with @Michael Smythe that you need a property manager that communicates well. 

We have been customers for more than five years, we would appreciate having better communication when it comes to the property managers having Important issues to solve.Therefore, please contact me at any time at 703-420-0620 or 703-317-7078.

Effort is still required to communicate with the Craigslist advertisers, but having software to lift the deals out of Craigslist would surely be worth $1,000. 

Ultimately, clear communication and expectations handled in a respectful manner can avert any issue.

It may be that they are underwriting the property at a significantly different valuation than what you are using or that they feel that you or the deal is excessively risky.Great advice here, and a good HML will have an account rep or someone to communicate with you through the process so that you know. 

Haven't discussed with them as my electrician has suggested installing a device to determine kilowatt usage for the main dwelling and the ADU.For now my ADU strategy will be looking for properties with attached garages and are large enough to eventually add a detached ADU if I decide to go that route and I prove that this strategy works.  

Owners do NOT pay PMC's enough to risk violence.4) How is their inconsistent communication really negatively affecting the management of the property?

I always cover my experience, the brokerages experience, and expectations with communication - 9 - 5, M-F, 24 hr turnaround during business hours, and the owner can reach out to me personally when the team isn't present. 

By the way, your attitude and the way you communicate with people is something to behold.PS.  

., privileged communication) and Youngstowner (where omerta is still a thing), I sometimes learn things I cannot discuss.