Will my immigration petition be affected by my domestic violence misdemeanor?

The arrest will need to be disclosed - if you did not include it on your I-485 then be sure to tell the Officer about it at the interview and bring certified court records with you to the interview showing that no charges were filed. If you don't' have an immigration attorney I suggest you get one to present this properly. If you would like a consultation on the facts of your specific case feel free to contact me as indicated below. I do charge for consultations but whatever you pay for the consultation would then be a credit toward the fees for your case if we are retained for services after the consultation.

You can be found inadmissible to the U.S. and your Green Card application denied even if you were not convicted of a crime, if you admitted committing the crime. You need to speak to an Immigration attorney about your situation because being interviewed by USCIS.