I suppose it's important to have management automated.

Then you can block their number if their automated system still calls you. 

We manage between 1000-3000Leads over the last few years consistently and Podio has allowed us to organize, prioritize, manage, and automate not just the leads but a handful of our processes within our sales cycle.

Also I recommend checking out the channel on YouTube if "Airbnb Automated" he has a free course explaining from A to Z how to arbitrage on Airbnb.

@Justin Wawrzyniak the easiest and most effective way to manage your rentals like a pro is to start using a property management software that will automate most of your tasks. 

Problem with Zillow is they have this annoying "1-click reply" where people can just click on your ad without reading it and you get an automated message "Joe is interested in your apartment at 123 Main St."

Automate your marketing.

He advises to setup an automated system which forces transfers from a main checking account into various buckets for emergency accounts, savings, roth ira's, etc.

I'd personally create a STR PM company and automate it myself and you would be making a killing if you are in the San Diego market.

Looking for a long-term, serious partnerships where I would provide CMAs, could show properties, submit reasonable offers and provide automated searches.