Sorry if this has been asked somewhere else, I didn't have time to dig through the question threads.
The starter set has rules for attunement.
1. Only one character can possess it.
2. Takes a short rest to attune,
My question comes in with the rules to end attunement. It mentions 2 possibilities.
1. You are 100 yards away from it for more than 24 hours.
2. You voluntarily let it with a short rest.
My question is, when another character wants to attune to the item, does them attuning automatically drop the first attunement? or does the first character have to spend a short rest to drop the attunement, then the second character have to spend a second short rest attuning? The rules don't really make this clear.
Since someone else attuning to the item is not mentioned as a way that you end your attunement, that is not a way to end your attunement.
With that being true, it becomes clear (because no other way is presented as possible) that the first character's attunement has to be ended before the second character's can be made.
That makes a fair amount of sense in that you couldn't then sneak into a dragon hoard where you've scryed a Staff of Power, spend an hour attuning to it, then beating the heck out of said dragon with its own treasure.
THAT would make for a very Sad Dragon. 
I don't have the Starter Set with me at the moment; but, I think the intention of dropping attunement, during a Short Rest, is to attune to another item, during that Short Rest. If I'm correct, and that would work, then it should follow that dropping attunement is fairly quick; but, has to been done while resting and not while doing other adventuring activities.
E-Tallitnics wrote:
ProphetSword wrote: