@DG A. You don't have to move out of state to avoid rent control. We don't have it here in Sacramento and our market rents have shot up 50%+ (property values too) in the last three years. It's pretty "purple" here too so I don't know that we will see a change on rent control. Granted I'd rather be lucky than good...the bay area exodus has really driven up the market here in the valley since we bought our first property. Consider looking at under valued 5+ unit buildings in stockton or sacramento, fix what's making them under perform and bump up the rents. There are a TON of incompetent "mom and pop" landlords out here and with a 5+ unit property the value of the building is directly related to rents (ie more rents = more equity to purchase the next property). Plus, moving every two years must be a pain.
As far as getting your tenants on federal assistance this is a hard thing to do. The wait lists are long, it's easy to fall off and just because you bump the rents doesn't mean they will qualify for assistance on their own merits. It's a nice thought but impractical...you could always accept section 8 tenants coming in? Oakland is gentrifying and rent control or liberal politics (like 'em or hate 'em) won't stop that trend...it's just a matter who's making the money.
I hear what the out of state crowd is saying, but (caution - incoming anecdotal evidence) my buddy has bought other people's midwest fix and flips with no chance for forced appreciation (in fact the building depreciates over time as housing values remain flat factoring inflation), Lower Cap rate and greater risk than I experienced house hacking. I'd argue that as more jobs become automated areas that depend on blue collar paychecks will only get worse for property values, rents, vacancy, vandalism, etc. You live in one of the most profitable states in the country with far and away the largest GDP and one of the highest housing costs (behind HI and NY) with white collar educated professionals able and willing to pay rent. For reference they can't build housing at $750k a door fast enough to keep up with demand! My buddy buying in the midwest has seen returns, but he would have been better off in the stock market (granted it's been a great few years). To clarify...not that the area he invested in is garbage, but the investments he's proud of have objectively under performed, and when you're that far away sweat equity is off the table. Now if you're investing to be hands off that changes things a bit, but you seem to be doing owner occupied units so I'm betting you are putting in some elbow grease.
I'm always looking for new strategies/philosophies on investing, but I would venture to guess most of the people bagging on CA real estate have never owned any.