@Daniel Lehman Welcome to BP! Sounds like you have a lot of the natural skills that make for a good start in REI. Of course, your main hurdle is your location. If you lived in a less inflated market, I'd say you could probably get yourself set up quite nicely with a team and do some BRRRR investing. Of course, this is still definitely doable in other markets, but the distance does complicate things. Not only are you managing people you can't look in the eye on a day-to-day basis, but you'd be buying in a market you're not as familiar with.
If you're itching to start out, I might suggest starting with something more passive to get your the portfolio started, while you learn the ropes for something more DIY / hands-on (just assuming that's what you want, given your reference to management skill). There are so many markets where your capital can go much much further than in SD, but building a team and learning a new market from a distance takes time and some serious networking.
If you have the time, I'd suggest planning to visit a couple of your top markets (after doing quite a lot of research, of course). Ideally, you'd be able to spend some time to build a team on the ground before heading back to CA. Long-distance DIY investing is definitely a viable strategy, you just have to do the legwork of developing a solid team that you can easily manage from afar.
Of course, if your primary goal is to get into a more passive form of REI, Turnkey is likely going to be one of your best options. Don't get me wrong, there's plenty of work up front in terms of due diligence, vetting providers, etc - but once you cut the check the investment should be more or less hands-free. Turnkey multis are not nearly as common as SFRs, though they do exist in some markets. Even with SFRs, you have the capital ( and I'm guessing credit score) to build a tidy little portfolio of cash flow properties right off the bat. Hold them for 10-15 years, pour all the income back into paying off the loan if you don't need it now, then use the 1031 exchange to leapfrog into bigger/better/more doors without paying the IRS for the privilege, rinse and repeat. Keep doing that until you die (inelegant, I know) and leave the props to your heirs who receive a stepped-up tax basis (meaning you've successfully avoided all that capital gain and depreciation recapture tax). This is a common and effective strategy for long-term, generational wealth building. There are others, but this is definitely the simplest.
This would be one of the most passive options - you would give up a bit of your return in exchange for professionally rehabbed, managed props (though you still shouldn't be paying more than market for Turnkey) but you would have one company to vet per market, one team to build a relationship with, so it's a trade-off. BRRRR gives you the potential to force some equity if you find a great deal and then rehab it to appraise for more than you've put in (doesn't always shake out that way, but that's the goal), and if you self-manage then you save 8-10%, but self-managing becomes very difficult to scale and is more of a job than people think.
It's all about your goals and what you need to feel confident in your investment. Some people don't like to delegate, need to be able to see their properties day-to-day, be involved in tenanting choices, etc. Turnkey is not the right choice for those people - a more local, self-managed BRRRR method would be better suited. Others just want to create stable monthly income or want to build a portfolio in a more accessible market than the one they live in, but aren't interested in getting their hands dirty in the day-to-day. For those folks, Turnkey can be a great option. Some want to be in charge of selecting individual team members and have more control over rehab decisions, prop selection, etc. but want to invest in a market where their capital goes further, so out of state BRRRR is a better choice. Turnkey has a shorter runway - you can get started faster because there are fewer moving parts. BRRRR takes a bit more legwork and is more time consuming, but offers the potential for higher returns depending on how well you do it.
Either way, the first step is clearly outlining your goals and needs. It sounds like you would probably be good at BRRRR, but may not want to take on REI as a job. There are also other, more removed ways to invest in REI, like syndicates and notes, which I'm sure someone with more expertise will explain in more detail. Of course, you never have to choose just one strategy, and you don't have to stick exclusively to whatever strategy you employ first. Many of our clients start with Turnkey to get the ball rolling, and then start building a more DIY portfolio alongside, knowing they have a more passive, reliable income source backing them up if a deal falls through. You can pick and choose the strategies that work best for you now, and tweak your long-term plan as you learn more and build your portfolio.
Whichever direction you go, it sounds like you have the capital and skillset to get yourself set up pretty nicely.
Best of luck!
Clayton