I would also add that you join your local REIA chapter (Real Estate Investor Association) as it will allow you to network with other STR owners and get more location-specific information. 

Even though they don't need major projects or much maintenance, now that we're parents and don't live there, it's still annoying when things come up. 

However, I do rely on my trusted network of local professionals for different parts of the process.

This is why we network with other real estate investors - kind of like what you are doing here!

As for the third target market, Sacramento is close to you, it's a state capitol, relatively inexpensive, two major universities, great local culture...

I’m naturally inclined toward this area because it’s within driving distance of major west Coast cities (L.A., San Diego, and others)—making it feel like a “natural” choice for a regional traveller wanting to get away for a short weekend. 

Quote from @Matthew Paul: Isnt there going to be a major problem with mudslides once they get rain  .

Explore remote investing options like turnkey properties or out-of-state rentals with property managers, and use summers or gap years to network, analyze deals, and gain hands-on experience.

I have a large network plus in depth knowledge of the process to get a project like this off the ground. 

If you don't already have boots-on-the-ground and a trusted network, it's going to be tougher to do.