My question pertains to only the part about common law marriage. So I think you have answered it, that CA doesn't recognize common law. I have lived with my mate for almost 8 years and we have been together a total of 10 years.
Mr. Waller is correct; there is no common-law marriage created by living together in the State of California.
If you lived together, in a state (there are still a few) which DOES recognize common-law marriages, for long enough to be considered married in THAT state, and THEN you and your spouse moved to California, California WOULD recognize that out-of-state marriage.