Legal Question in Real Estate Law in California

No, as the rent control law states how the treatment is made.

Actually, again, Mr. Shers has spouted off about something he does not know about. The nature of the structure has very little to do with how a landlord is permitted to treat it. Only two things count - zoning and actual use combined with registration. The San Francisco rent control ordinances, if they even apply (they don't apply to many buildings in "The City.") have some, but little to do with it. There is no prohibition, if it is properly zoned and proper use permits issued, against having a structure with apartments offered on a nightly, or weekly basis as a hotel. It is also possible under the S.F. rent control ordinances to have some people in the same building be "tenants" and others be "hotel guests," depending on their length of stay. So ultimately it depends on how the structure is zoned, permitted, and registered with the rent board - there is no one answer to your question.