I will be contacting some lawyers this week but quick update maybe someone here can give me some more info so i can have an idea if this is even worth spending money on lawyers / time fighting this.

So he was charged with a felony and given a 20 year ban . My sister (us citizen) turns 21 this year august . Is there any sort of waivers out there that we could possibly apply to for my dad to bring him back or would he just need to wait the 20 years ?