Legal Question in Civil Litigation in California

It depends upon whether the tenancy is month-to-month or a lease. If a lease, the lease continues until its ordinary expiration and the new owner simply becomes your new landlord. If a month-to-month, and the new owner wants you to vacate, it must give either a 30-day or 60-day notice to quit. If you haven't vacated by the date stated in the notice to quit, the new owner will file an eviction lawsuit against you. You will probably have to sue your former landlord to recover your deposit. The new owner may also offer you "cash for keys" to induce you to leave voluntarily, which you can accept if you are sure the trustee's sale has been completed. Generally the new owner can not give you the 30 or 60-day notice until the trustee's sale has been perfected by the recording of the trustee's deed.