I need my US passport renewed in the next two weeks, but I'm unable to make it in person to a passport office. If I send my documents to a family member, can they apply for an expedited renewal in-person on my behalf?
According to Get a Passport in a Hurry:
If you must apply in person (for the above reasons), then you must sign the form in the presence of the Acceptance Agent. From First Time Applicants: