There are legal procedures and requirements which must be fulfilled. All Texas residents can apply for a name change under Texas Family Code Chapter 45.You will need to file a name change petition in state court in the county you live in. If filing for a name change only, you should use a simple fill-in-the-blank form that is available from three places. ❖TexasLawHelp. Go to the social security office off 75 in Plano, wait in the walk in line, it'll take about an 1-2 hours to get called. This toolkit for parents and guardians contains forms and instructions for legally changing the name of a child under 18. How to change your name using the "Name Change Kit". Save time and money with our unique name change kit. On the Order Changing the Name of an Adult, you fill out your CURRENT name at the top, check District Court, then fill out sections 4 and 5. How should I list my name when I apply for something before the change is complete?