I am not aware of anything that would require you to use any particular last name for the child. However, I foresee other problems in your situation. Because you are still married, the law in the State of Washington presumes that your husband is the biological father of the child. This means that in addition to the divorce, you are going to have to do a paternity action to straighten out who the father of the child really is. This may not seem that important now, however, it can be very important down the road. It can impact who has to pay child support. It can impact from whom the child can inherit. It can impact how has a right to custody of the child and who is going to be responsible for any expenses relating to the child.
Answered on Nov 11th, 2011 at 2:03 PM