Will each studio in the area have cap and gown for all schools in the area? the studio near my childs school did not have appt time I wanted so I scheduled with a studio that is a little further away

They have cap and gowns to match the school's. It doesn't matter which studio location you pick.

The Dacula location had caps and gowns in all colors.

Yes, each location has the cap and gowns for all of the schools they are contracted with. We live in Sandy Springs and went to the Dacula location and they had the cap with the embroidered gown.