This person is not behaving in a manner that's consistent with good public order right now.I would then send your tenant a text message stating that you will no longer be doing business by text messages and that you will no longer be reading her messages, but you will be trying to call her twice a day.

I believe, for the purpose of the lease, "landlord" refers to the owner or the owner's representatives but I would specify that in the lease if you're concerned about it.Your PM should also be having rent checks made out to his brokerage and all the other things that make it obvious that it is a PM

Whatever the animal is called,  a pet , companion or service animal it still must behave in a nonaggressive manner, meaning it doesn't bite or growl or bare teeth around other people.

She's just treating you like "family," lol.It will be a constant, miserable, stressful fight if you try to force her to behave.  

I just think M2M makes everyone behave better, since either party can end it with 30 days notice.

Reminding him to pay is not a landlords responsibility and may be no big deal but good tenants do not need reminders to manage their own responsibilities in life.There is no excuse for you or your tenant to be behaving the way you are. 

It is even far less likely now with the way they have behaved since President Xi changed the dynamics of their government going back to 2012.

Not sure why you would be having trouble finding one just based on the property type. 

Might be having the collateral he knows so well is his better investment.

That's not just some agents, it's the exceptions that do not behave this way.