My question involves divorce in the State of: WA

early in our marriage, I signed a document that was called a quit claim. I was told by my husband and the title company rep this was to add my name to the deed because the mortgage was in his name alone in order to get a better interest rate.

Now, we are divorcing and I discovered that what I signed actually was waiving my rights to the property but we also live in a community property state....which one is valid?