The Anchor Inn on Manitoulin Island isn't welcoming overnight guests to its dozen $100 a night rooms until at least 2024, because they are all occupied by longer-term tenants who had nowhere else to go. It began last year when William Lanktree, 73, battling a new bout of cancer, asked inn owner Denise Callaghan if she had any rooms for rent. She set a room aside for him for up to a year at an affordable price. Then, realizing the severity of the housing shortage, she opened all the rooms to longer-term tenants for between $700 and $900 per month. The waiting list for affordable one-bedroom units on the island is now 200. Manitoulin Island, located in northern Ontario in Canada, is the largest freshwater island in the world.