One permanent QR card at each rental's door. Scanning opens the official verification page with the current license, status, and document. Updated centrally at renewal; the card never changes.
The only physical step, ever, is posting the card one time.
Posted once at the entry. Never replaced, never reprinted.
Official, mobile-friendly, and always showing the current license.
Updated once per renewal, from one place, with the official PDF attached.
Onboard your whole portfolio in one sitting.
A displayed-license standard that enforces itself.