A good Property Manager should lay out the triggers of communication and the expectation of timeframes on such events as turnover, collections, response times on emails, renewals, and overall just communication.  

In our case, we have a 3rd party property manager who helps us find tenants and deals with and communicates with tenants on daily basis, so really they should be called tenant assistants.

Agents should assume or ask you if you are interviewing other agentsThird  Consider the experience and level of confidence you feel about themFourth getting your price is important to youFifth   The number of listings  aka inventory and direction of the market indicates a confidence level that lenders are comfortable withSixth Open and regular communication with the agent you select is important

If this is the quality of your communication you need to rethink and clarify everyone’s expectations.

Either I suck at communicating or people misunderstand my posts.

I know how to sell in general and am a decent communicator, but I know almost zero about where to begin in commercial real estate.

The other 10% are mostly communication issues so I highly recommend a signing appointment to review the entire lease with tenants before they move in so that there are no "I didn't know that" conversation later on.

He is furious with them for lack of communication, lack of internal communication, time delays and other things.

We can find a better way to communicate if it's easier for you.

You're able to communicate and connect with other investors as well, best of luck!