I am buying a used Mavic Pro from a friend and haven't recieved it yet. I see on theget started tutorial that you need to enter an e-mail address etc. Can this info be changed into my info?

If you don't already have a DJI account, you can create an account in DJI GO. Then, log into DJI GO using your DJI account.

Hello and good day Bob VanDeGejuch. Welcome to DJI Forum. After receiving the drone form your friend. You can create your personal account on the DJI Go 4 application. Once you log in to your DJI Go 4 account all the details of the drone will be recorded on that account. If you have any other inquiries or concerns please feel free to post it here at DJI Forum we are here to help your. Have a safe and happy flying.