Note: if YOU own the roof (i.e. is roof maintenance your responsibility?), that simplifies the process quite a bit.
Subject: I want to install solar in my condo, it should be good because it was built before 1978
I personally have condo and am currently fighting the homeowners association, the only down fall can be getting through the homeowners association, ten of us want to add solar to the apartment, however the home was built before 1978, so it should go through according to the CA Gov site: