I-130 petition for mother approved and sent to NVC, I am currently receiving unemployment benefit, can i still go ahead with it?

Although you may have met poverty guidelines, at this point and to avoid delays , you better have a joint sponsor.

First, I-140 has to be approved by uscis.

DS160 form - have you ever been arrested or convicted - what to answer?

You have to answer “yes”. At the conclusion of the case bring disposition to your interview.