Since it is so far from the subpanel breaker, my building inspector wants me to install a shutoff switch that will turn off the entire barn. Do I still just tie the white wires together? Many thanks for your help!

Is this a single circuit? The neutral isn't supposed to be broken, just the hot leg(s).

Since it is so far from the subpanel breaker, my building inspector wants me to install a shutoff switch.............
Just for reference, it has nothing to do with the distance. It has to do with the fact that a detached structure such as this that has a sub-panel requires some form of service disconnect.

Does the barn have it's own panel? I didn't read it that way. I read it as if the barn was on a circuit(s) in a subpanel... not located in the barn. "so far from the sub-panel breaker" Did I mis-understand?