People divorcing or legally separating can change their names as part of the proceeding. It may surprise you, but anyone can change their name, and it’s not that complicated, so long as she is not seeking to change her name to defraud someone or deceive her creditors.
In Washington State County Superior Courts handle name changes relating to domestic cases, County District courts handles all other petitions or requests for name changes. In cases related solely to name changes, you must file a petition to change your name, pay a filing fee ($201.50), and appear before a judge to confirm you are not acting in any unlawful way. For the specifics and forms check out this website: https://kingcounty.gov/courts/district-court/name-changes.aspx/
If you change your name, I recommend that:
You are more than your name, and sometimes circumstances may cause you to make a change.