We are two fashion designers who are going to run a fashion label together. One of us is a Finish citizen living in Helsinki and one of us is a Swedish citizen but lives in Los Angeles (had a green card for two years and will have double citizenship asap). We have registered our business as a Ltd in Finland. How do we go about doing business in CA? Do we register the foreign business here or do we start up a whole new LLC here? OR is it enough that I have registered in CA as a freelancer receiving out-of-state and foreign income?