This ^^^Sean Cody is an upstanding forum member, sponsor, and generally our go to guy for NFA trust and purchasing questions.
His ad should be on the forum here somewhere. Will see if I can get you a link to his site.
I used Alfred Casillas in San Antonio.
Law Office of Alfred M. Casillas
1800 McCullough Ave, San Antonio, TX 78212
(210) 764-7444
https://g.co/kgs/BquU6h