Changing the Level Overrides in Multiple Files


I am working on staging plans that has 55 total sheets. All sheets are individual sheets. They are already created, and we are not going to place them in to a single file with saved views or models.

The question I have is trying to find a way to update the level overrides in all the sheets without having to open up each sheet individually and turn off a specific override. 

For example. our legend is referenced in to each sheet. currently the colors on the legend all print black. When I off the overrides in that sheet for those levels, then print their true colors. I want to do that without going into each file.

Is this possible?