Oh my, there's too much to see in CA for you to see it all in 2 weeks. My husband and I spent nearly a week in Yosemite National Park for our honeymoon and still didn't get to see it all. There is camping there, but I think you'll have to check what available/open for when you'll be here, as I think the weather might make it inaccessible, but I'm not sure.
There's plenty to see in the LA area - Hollywood walk of fame (where all the stars are on the sidewalk with people's names), Griffith observatory (which I think is open again, but verify that), La Brea tar pits (yes, legit tar in LA), museums, Reagan presidential library, missions, etc. I honestly avoid LA county, though, just personally. Orange County has some awesome beaches, museums, missions, hiking, etc. Laguna Beach is very hipster, if you're into that. Going up the coast is beautiful too, up into Santa Barbara. The Santa Barbara mission is gorgeous (it's the "queen" of the missions). Up into San Luis Obispo/Morro Bay, that's all amazing-looking area, lots of open land. There's lots of wineries in Paso Robles, which is another cute town there, so if for some reason you can't make it up to Northern CA, you can get your winery fix there. Or in Temecula (down in Riverside county), they also have some wineries. That's a cute town too.
If you're looking for real estate, you're kinda late to the party, but I've been hearing that there are better deals inland than there are in LA and Orange counties. You can check out the Inland Empire (Riverside - San Bernardino - Ontario area), I've heard of people getting better returns out there. I grew up in Riverside myself, and there's some stuff to see there, too. Dowtown, oh and the Mission Inn! If you like architecture you can check that out. It's not an actual mission, it's an old hotel made to look like a mission. Lots of US presidents have been to it; Nixon even got married at it. Don't need to stay there (it's super expensive), but you can walk around the area and check out the architecture.
There's camping all over SoCal, but I'm not sure what you consider "camping" as I'm assuming you're not bringing a tent and stuff with you to AZ. You can rent cabins up in the mountains, like around Mt Baldy, Arrowhead, Big Bear, etc., if that's what you're looking for.
I don't know how much you've dug into landlording in CA, but CA is incredibly unfriendly to landlords. Something to consider. My husband and I personally won't buy any more rentals here, and plan to sell our current rental in the not too distant future. If you're interested in rentals in the southwest, you may actually want to look in the Tucson and Phoenix metros. AZ is more landlord-friendly, is cheaper, and has better ROI than CA. Just an idea.
Hope you have a great time on your trip!