If you are someone who has a bigger portfolio that you manage I would suggest appfolio or yardi.  

To set the stage, I'm owner of a short-term rental property in the Poconos in PA and we use a property management company for bookings, maintenance/cleaning, guest management, etc.This past weekend we had a guest booking but when the guests arrived Friday evening the house had no running water, though it had been running fine earlier in the day when the Property manager (PM) was at the house to give a final check and leave the welcome packet.

The asset management piece of investing is not focused on enough, in my opinion. 

Would this make you question your property managers?

It’s worth considering self managing as a STR for depreciation benefits if the demand is there 

Currently, I am self managing all the operations.

The company I currently use for my other investment homes said they don't offer management for any co living... unless everyone in the home is on one lease.

Does anyone have any referrals for property managers in the Los Angeles area who specialize/ have experience in mid term rentals? 

I personally do not have experience managing rentals.