Hi, thanks for your response!
I tried inserting a section break, and then attempted to make the right column top aligned. However, this somehow made my left column top aligned and my right column centered. I was starting from the right column, and had my cursor after the section break (so I assume it'd be in the new section). But it still only applied the change to the section before it. I'm trying to avoid having to reformat every page with a table since I'm already several pages into this document (and columns allow for pre-set centered margins down the middle that I don't have to manually create as a table cell), but I'll keep it as a last-choice option and keep fiddling around with things. I think it's also difficult because I only want vertically centered text on one left-hand column of one specific page (with the rest being top-aligned).