It shouldn't. The government can look at expunged convictions... not charges or allegations., Otherwise all's anyone would have to do is accuse an alien of something to ruin their life... (ie;" Ollie stole my wallet" )wouldn't seem fair, yet life isn't. Do yourself a favor. Most immigration attys charge about $100 for an initial consultation. I would spend that now, and ask. Maybe work out your future with the same attorney. It would be important if you admitted anything on record. (One more reason lawyers are right... never say anything)