The step definition holds for immigration. Your wife's son and or daughter are your stepchildren.

Your wife who is a USC may sponsor her sister. This would be a 4th preference case. There is a long wait of about 15-20 years. Clearly, this would...

The birth certificate controls in resolving most name issues. The passport and marriage certificate are next in that order.

Not a good idea! A Canadian immigration lawyer may help you as suggested by Attorney Shusterman above. Good luck.

I agree with the above reviews. I'm unable to find any immigration issue in your question.

An inquiry is warranted and follow the guidelines referenced by the above attorney. Good luck.

No, that would not have an effect on your N-600 application. Good luck.

More information is needed in your case. You are encouraged to retain attorney to review your records and you both make a decision on the next...

A certified copy of the citation would be fine. According to you there was no arrest. Good luck!

After adjustment your category would be CF-1.