https://www.irs.gov/ht/charities-non-profits/charitable-organizations/form-1023-authorized-representative-may-not-sign-form-1023
Authorized representative may not sign Form 1023.
authorized representativeformmaysigninternal
https://www.canada.ca/en/immigration-refugees-citizenship/corporate/partners-service-providers/authorized-paid-representatives-portal/sign-in-authorized-paid-representative-portal.html
Authorized paid representatives (APRs) can use the Authorized Paid Representatives portal to complete, pay for and submit most online applications on behalf of...
representative portalcanada casignauthorizedpaid