Where can i find a cheap Traffic ticket lawyers under $75 in the dallas garland area?

My sister got three dart evasion tickets in my name and im stuggling to take care of them. i really dont have the money bc i just got a job and im trying to me me and my son out of the shelter so i need to find someone cheap but i want to drive right and dont want to be taken away from my son. i need to take care of this quick...if anyone has any advice please help me out