With your income, owning your own home is a no-brainer for tax and stability reasons for your kids. If you don’t, go for it.
Given that you probably already own your own home and will inherit 3 more, that’s already plenty of exposure to our local market. For that reason, I’d say focus on stocks and bonds.
My favorite stocks now are MET IRBT and KHC.
iRobot is an established pure-play and profitable robot company with pentagon contracts and I assume a nice portfolio of patents. I think it will eventually be gobbled up by a tech giant like Amazon or Microsoft for a 30-50% premium.
For your IRA, I like the taxable muni fund GBAB.
If you do want to buy property, I think City Heights will do well due to its location and amenities compared to its price. For established areas, Ocean Beach I believe has the best value. But nearly all of San Diego is attractively priced compared to rents.