No, you cannot rent an apartment on Airbnb without the owner's permission. Listings on Airbnb are created by hosts who own or manage the properties, and they must agree to have their space listed for rental.
Yes: it is possible in cities like San Francisco to list your property as a short-term rental legally, even if you are a tenant and not the full owner of that property.
But even if your lease explicitly allows for subletting or short-term rentals, it's polite to inform your landlord that you're looking to host an Airbnb on the property. Without landlord approval, you could risk eviction, fines, legal action, or causing discontent between yourself, your landlord, and other tenants.
Instead of taking this chance, you should talk to the landlord and get his or her permission before you ever list your apartment on Airbnb or another short-term hosting site. (See How to Sublet a Rental Unit for more on the subject.)
An Airbnb rental agreement is a legal contract between you and your guests, which sits outside of the Airbnb platform, giving you additional legal protection in any guest malpractice event. But what should you put in the rental agreement? How do you send it to your guests? And what are the downsides?
Does an addendum supersede a lease? The addendum is a part of the lease agreement. Therefore, it does not stand on its own. However, the addendum should make references to the lease, contain the same date and name of parties as in the original lease agreement.
At the heart of this issue is the question of privacy—what are guests entitled to, and what rights do hosts maintain over their own property? ing to Airbnb's policies: Hosts should not enter the guest's rental space without the consent of the guest. There are exceptions in the case of an emergency.
Adding an Airbnb lease agreement to your booking flow does add a little extra friction to the process, and this is something to bear in mind—as any added extra friction will reduce your booking rate over time. And it's also worth remembering that the rental agreement is between you and your guest.