So i quite like the idea of having 4 scamps follow me around forever, so i want to hold onto the staff I'm thinking. the only problem is that the scamps report my murders to the gaurds. is it possible to drop the staff in the cave and come back at a later date and repick it up? or will it dissapear when the cave resets? or is it possible to take the staff to the cave, drop it off and complete the quest, then pick it up and take it back to my house and put it in a chest since it's no longer a quest item. will either of thos work?

You can't keep the staff and the scamps at the same time, except by not finishing the quest (or maybe a mod, but I don't know if one exists). Once you drop the staff, you can't pick it up again, and once you finish the quest, the scamps will stop following you. I don't remember if the staff disappears or not, but it really doesn't matter since it can't be picked up.

It's possible to finish the quest without actually dropping the staff (stuff it into a nearby corpse instead), but besides losing the scamps, you'll never be able to remove the staff from your inventory except by placing it into a container (can't display it, for example), and it'll disappear for good if you save while it's drawn.