I personally don't want to use them again mainly because of the lack of communication 

So much can be done online, and while you DO need to be reachable by your guests, you do NOT have to be reachable within 90 seconds, so don't feel hostage to some unreasonable standard of communication. 

I have also managed the day-to-day operations which involved me ensuring all amenities were stocked, coordination with the cleaning staff, and handling communication with challenging guests.My Remote work skills have proven me to be a great asset for my property owner who was not much involved in running their airbnb rental but was well-informed by me. 

Communicate and set expectations.

We have 15 rentals and have been using Buildium for 8 years for tenant communications, collecting rent, and leasing.

She owned the property for about 12 years and although she didn’t believe in ghosts and communicated to me she never experienced anything she had guests who still would tell her they had seen the woman in the master bedroom where we had so many experiences with her.

Communication was not good so the entire process so I said no..

This means that businesses must obtain explicit written consent to add customers to a subscription list and send them marketing or promotional communications.

Any recommendations with communications  (both with guests and the their respective booking platforms) and handling current upcoming bookings? 

As a broker, that shops many lenders I look for reputation, communication, and the assurance, that whatever I push in will close.