In San Francisco, it is not possible to write a special lease with a pre-set move out date. unless the building was built after June 13, 1979 (or it is one of the rare properties in SF which has qualified for a "substantial rehabilitation" with the Rent Board). Such a provision would be an attempt to get the tenant to prospectively waive his rights under the Rent Ordinance. Such provisions are void as against public policy.
Jeffery Woo, Esq.
Sedgwick, Detert, Moran & Arnold LLP
Complex Rental Property Group