Lists - Change Owner

Lists - Change Owner

A former employee created a list for some campaigns. When I look at "All Lists" under Contacts that list "Newsletter Subscribers" is not included. The only place I can see it is after I click "Recipients" when creating a new campaign. , but it is not listed under Contact Lists.

1) How do I make me the owner/creator of that list since the original creator no longer works for me?
2) How do I add it to the listing of lists under Contacts?
3) How do I update the list with new subscribers?

Thanks,
Tracy