I know someone who build a "T" from 2x4s to help him hoist the sheets up to the ceiling.His other trick was to secure a 2x4 to the walls, at a distance from the ceiling just slightly more than the thickness of the drywall.

What is the GC charging you for the roof repairs, how many squares are included on the quote, what is the resheeting with plywood or OSB. what is the thickness that is required by the village or town per their code.I have a great roofer who will just do the roof, I know his prices, and based on the info, and I can tell you if your GC's price is the best price or not.You can PM me the details if you like.

It's very thick in some spots though.

I’ve heard thick carpet with a good underlay will be better for stopping sounds and foot fall. 

Cons: Airbnb can be a fickle platform and you have to have thick skin when dealing with Airbnb and with guests.

Around 8 inch thick 15 inch wide and up to 30 feet long.

Very thick and durable and easy to install.

Ideally I'd like to hang up thick blankets/sound panels on the closet walls and try to do the same for the floor and ceiling.

Some are very thick and would be difficult to spread (mostly used for filling in drill holes).

I own C+ properties, but it would still bother me and feel like it reflects poorly on the quality of my units.(2)  The screws holding the drywall will have to be very long to reach the joists, through thickness of the drywall, plaster, and lathe before getting to the joists.(3)  Eventually the plaster will continue to crack and flake off (or if there is a leak), adding to the weight of the drywall.