If I sell my iPad, is erase/reset enough or do I need to sign-out first?
If you did a factory reset (Settings &gt; General &gt; Reset &lt; Erase All Content and Settings) it asked you for your AppleID password at that point, right?
That should, while factory resetting, dis-associate your AppleID.  If you're seeing the &quot;Hello&quot; welcome initial start-up screen, you should be good.