URMC has supplied shared cloud file storage for you. You may use this shared space to collaborate on documents within Notability. The following link contains information on configuring your connection to Box.
Notability allows you to annotate PDF documents using your iPad. The following link contains information on annotating PDFs using Notability.
There are some optional but recommended settings you can make in Notability. Configurations such as adding your name for PDF annotations, or confirming deletion of annotations are shown and explained in the following link.