@Sam Dennis
I been a landlord in CA since 2000, now have several rental. Yes you can still make money CA, what I have done in the past to purchase highly discounted properties is use cash to buy it, rehab, rent it, then refinance to get cash out, the last part is easier after 6 months from purchase date. If you are using a property management company make sure to tell what kind of tenant you want (FICO, income to rent ratio, section 8[I don't recommend],prior evictions, criminal history[sex offenders], marijuana on property)
If your unit is a studio or 1 bedroom you can a lot more money wit Airbnb, most markets now have Airbnb property management that handles all turn-over things such as cleaning, dealing with guest, we use and August Smart lock that sincs with Airbnb so you can see on when they come and leave plus a security camera outside the unit to make sure there is no extra people or a party going at my unit so far we are making more than double from what we use to make on it with a regular tenant.
My goal now is buy houses with 2 units on same lot where front tenant pays all my bills and possibly make a little extra but make 2nd unit an Airbnb unit.