Please tell me if this is enough information to prove my domicile in America.?

All of the evidence that you described is good to establish your domicile. Anything further, like a US bank account, would be even better.

Does the definition of a US person for immigration is the same as the IRS definition for tax purposes?

I agree with my colleague, this question is better suited for a tax professional.

I agree with my colleague: this incident should not bar you from entering the U.S.

I married a women from Mexico, an at 1st i was more than willing to file for her citizen papers, but our marriage did last long

Your question is not very clear: is your soon-to-be ex wife already a green card holder (U.S. resident)? Regardless, if you are getting divorced,...

Green card holder, citizenship?

Based on the information you provided, you may not be eligible for naturalization at this time. However, you may want to consult an immigration...

What all would I need to drop out of school right now

This is not a immigration question. Rather, this is something you should probably discuss with your parent(s) or guardian(s).

Is it possible to start a divorce proceeding in NY for a marriage contracted abroad, knowing that both spouses visas are expired

This question is more appropriate for a matrimonial law forum and not immigration. I will re-direct the question for an answer from an attorney who...

Question on calculating household size on I-864EZ ...

This question is very specific to your unique situation. As this is a public, online forum, I suggest you consult an immigration attorney to...

Could someone please explain military and citizenship/greencard

Depending on your specific situation, the process for becoming a naturalized citizen may be faster. However, much more information is needed in...

My US citizen biological mom petitioned for me. Can I petition for my step mom? My step-mom & dad were married before I was 18.

Yes, you can petition your step mother as long as the relationship is established. I strongly suggest you retain an immigration attorney to assist...