Hi kevinsullivan1
Remote access is available on GoToWebinar and you can draw on a screen, but it's not captured.
What you could do, since you are already using GoToWebinar for hosting webinars, you’ll also have access to GoToMeeting.
You can use GoToMeeting to set up a session where you make the other person the presenter and have them share their webcam. You can then use the cloud recording feature to capture the session while they open DocuSign or a similar service on their computer and sign the document in real time.
Services like DocuSign also capture details such as the signer’s location and IP address at the time of signing.