Question: how to legally change your last name after marriage?
Answer: Social Security: www.ssa.gov or 1-800-772-1213. Immigration Services: www.uscis.gov or 206-553-5956. Passport Office: www.travel.state.gov or 1-877-487-2778. State Driver's License or Identification Card: www.dol.wa.gov/driverslicense or 360-902-3900.