Islamic mortgages are exactly this. You have an incorporated entity (shares distributed between yourself and the bank) that owns the house and your "mortgage/re

Islamic mortgages are exactly this. You have an incorporated entity (shares distributed between yourself and the bank) that owns the house and your "mortgage/rent" buys more equity from the bank. It's still just a mortgage structured to hide what it is. If you set this up with a "landlord" instead of the bank, it's the same thing and the landlord is still going to charge you a premium (aka interest) for assuming this risk, and assess your creditworthiness before entering into this kind of contact with you.