My divorce isn't finalized, and CA is a community property state. There are two related concerns, the first has to do with the community property adjustment and the other has to do with claiming standard or itemized deduction.
What I understand is that because my spouse and I were separate and did not mix income all year or live in the same household that we do not have to make a community property adjustment. Is that true?
We were told by one CPA that we have to both claim the same type of deduction (itemized or standard) but we were told by another that we do not under these circumstances.
Long and short she wants to claim itemized. I need the standard deduction.
You need an experienced CPA or attorney. The key question is, did your "marital community" end when you separated, or only when your divorce is final. That will depend on state law, and on the terms of your separation or divorce agreement. We aren't attorneys and can't answer that for you.
On the question of itemized or standard, you are out of luck, at least for the federal return. The rules on the CA state return may be different, but for the federal return, if you are still legally married and file as MFS, if one spouse itemizes, the other spouse must itemize. In other words, it is the itemizing spouse who controls. The only exception is if you provided care in your home for a qualifying child dependent and can file as head of household. In that case, you are not required to itemize even if your spouse itemizes.