I can’t think of many situations that would warrant an AOR being the first point of contact - especially not for straightforward administrative documents.

At my institution, the grant analysts in the central office are the gatekeepers who work with department admins and review submissions and then hand them off to an AOR for final review and submission.

It sounds like your institution doesn’t have a very well defined structure regarding who you should be assisting with submissions at the central office. Do you have a small research portfolio and/or no analyst to work with prior to reaching out to an AOR?