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. 

I would call around to as many lenders as you can and just find one that you feel is the best fit and communicates well with you.

Maybe communicating it more will help, but you cannot make people read.As a guest I would find making my own bed especially after a long drive or flight would be annoying. 

Have you received any communication from the sponsor?

The most interesting issues involve communication with subs.

How about the live communications pre- and mid-stay?

What do you want out of a GC:  Someone who has lots of quality sub connections, someone who doesn't soak you with their fee on top of Sub costs, someone who will be there to oversee manage the quality and speed of your project at least 3x per week and be in constant communication through calls and pictures. 

However save every single communication you have with them.

A significant challenge was managing the renovation process while ensuring minimal disruption to existing tenants, which required careful planning and communication.