At this point you can simple put all your focus on acquiring properties, growing your business and implementing additional techniques for automation. 

You could always consider doing it yourself for 6 months, then get the automated program to see if it's actually providing you better results.

Automate all kinds of things.

You can automate check in.

The calendar software i used either automatically sent to Airbnb guests or sent me a push notification to manually send to guests through Vrbo (I believe these messages can now be automated, but I am taking a break from hosting and I’m not quite sure)

Connects to most major channels and allows for a lot of automated messaging.

My main feature I’m looking for is message automation and a good channel manager. 

If the pmc is hundreds of people there is a good chance they have some voice automated way of dealing with it where very few people take any accountability. 

Gah - 401k's....I'm so irritated by that financial instrument!!  

I do self manage and automate as much as possible using Ownerrez, Stayfi, Pricelabs, Schlage(locks), Mysa(Floorboard heaters), and Econet(water heater).