Building in accessibility from the get go is key, as this Montreal hotel knows:
https://montrealgazette.com/travel/hotel-intel-montreals-monville-is-accessible-for-all
montrealgazette.com
Hotel Intel: Montreal’s Monville is accessible for all
The accessible accommodations have peepholes at two levels on the doors, a lower-than-usual bed with extra space around it, and bathrooms with adapted showers and toilets.