Ask to speak to the registrar at the school. She’s great and I’m sure could answer your question or direct you to someone that could.

We're moving to Arlington in a few months and I'm trying to figure out what to do for my younger kid (currently 2) for preschool. My older will start K at Jamestown in the fall -- if she's going to that school, would my younger son get a sibling preference in the 2023-24 school year? Or is the preference only given to siblings of kids in the montessori program specifically? If there's some decent chance he could get in (and both kids be at the same school!), I'd be tempted to leave him at his current nursery school in DC for another year and then home we can get in -- just can't find much info to assess the chances of that.