Since Beverly Hills enacted rent stabilization in 1978 the RSO ordinance has applied to multifamily rental properties of two units or more. A few rental properties escaped its reach, namely condominiums and buildings built after 1995. Now City Council appears ready to categorically exempt many more, including owner-occupied duplexes. It is a major break from precedent with real implications for hundreds of families. Here’s what a duplex exemption means for tenants.