Because you will be applying for a waiver, you need a lot of evidence of bona fide marriage. If your lawyer is not giving you good answers, may be he will not give you good results too. Consider having a second opinion or finding an attorney that will satisfy you, however that should be done with an entire file before an attorney.
Do you have J visa? Being simply married is not a problem, leaving a program will put you out of status, but then you will be filing for adjustment. Please consult with immigration attorney who will look at your visa and all supporting documents.
it is a serious traffic infraction, thus answer "yes" to arrest. Because you are dealing with legal terms, "violations" vs. "crime" and to avoid bad moral character, hire an immigration attorney to represent you.
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