Thank so much for the quick response, Phil! The freelance designer is NOT a member of our organization - he’s a guest using a different email address from my team. And he is a member of the team in which this project is housed. He’s a follower on that project and on the task and subtasks of what he’s working on.
And when I said I don’t want him to modify our custom fields, I really just meant that I, at the very least, need him to be able to read all of the information in the custom fields since those are the specs and links he needs to do the work. If he has the ability to modify the fields, it’s OK with me.
I guess I just find it frustrating that guests can’t view the complete custom field contents; it’s grayed-out and some information is cut off. I’m having to copy and paste the informaiton into the description field in order for him to see details of the project.