My LO has big feet and we always go a 1/2 size up because they grow so fast. Plus you can always put socks with them (even sandals) to help them fit a little better. GL!
I just went from 7s to 8s. I have noticed some brands of dress shoes run a little big especially because she wears them with thin tights and she is still in 7s for those.
Re: Shoe size
We had DD measured at Stride Rite.
R=5.5
L=6
So they told us to get a 6.5.