The reason this is a issue (in san francisco, at least) is that long term, elderly and protected tenants are getting evicted from buildings with whats called a

The reason this is a issue (in san francisco, at least) is that long term, elderly and protected tenants are getting evicted from buildings with whats called a 'ellis act'. A ellis act lets you kick everyone out of your building with the restriction that you cannot 're-rent' it for 5 years. Since a 30 day stay is not 'renting' per sf code, unscrupulous landlords have been using BnB sites to profiteer evictions. That is one of many reasons why its against almost all city/state codes to do this. I thought about this before- AirBnB and VRBO themselves are not actually committing the 'crime' however they are certainly with knowledge of the use that is happening. As such, I am sure any landlord wronged by either site would have a absolutely fantastic case for tortuous interference to them (AirBnB interfered with the contract between a landlord and tenant) I think it basically comes down to this. Certain things are illegal, like it or not. Lots of people think prostituion should be legal country wide, like nevada. But its not. Setting up a site to let you sell something that it knows is going to be illegal is riding a extremely fine line. It reminds me of a old trick used in a terms of service for a filesharing website back in the day. "You agree that by continuing, you have received a written, expressed waiver from warner, nbc, fox, [etc...] to download their content " The service knows that absolutely nobody has such a warning/waiver but by shifting the blame to the user, they think to be untouchable. I am not a lawyer though, so what do I know.