My question involves name change laws in the State of: Texas ....my son's biological father is in prison. He is violent and a drug addict. Which is why I left him obviously....anyways, my son hasn't seen his real father since 2010. He is 5 years old, autistic and doesn't even remember him. He has never helped me nor been a part of his life. My son calls my husband daddy and doesn't know any different. I want to change his last name to match me and my husband's and I think I can by doing a poll and getting a court order, but not sure how to do this? Where do I get the paperwork to fill out and how do I go about petitioning the court for an order? Please help.

