if you are the sponsor (your husband is co-signer or not), and you are living in CA, and finally meet all the requirements, you should be fine, and Don't cancel your parents' application.
Also, for your in-laws' case, depends on who's the sponsor when applying for the sponsorship and where he was. As the sponsorship has already been approved for them, generally speaking they should be all right....
And your parents' case is a different case from your in-law's. So if above answers are all positive, you should be free of worries...
Just my two cents.... The core of the sponsorship is financially you can support the people you sponsor....
Also, for your in-laws' case, depends on who's the sponsor when applying for the sponsorship and where he was. As the sponsorship has already been approved for them, generally speaking they should be all right....
And your parents' case is a different case from your in-law's. So if above answers are all positive, you should be free of worries...
Just my two cents.... The core of the sponsorship is financially you can support the people you sponsor....