I came in usa with esta.My esta expires in 1week. I get married an american citizen. And im ready to fill i130 form & i485.

Consult with attorney for a full evaluation. Medical could be submitted later.

If a person entered us illegly?

Additional waiver may be needed. Administrative processing could be security check related.

I am applying for a i 360 but i have a order of deportation...what would happened if my i -360 would to the deportation.

Depends on a case, motion to reopen etc. Please consult with an attorney.

I wanted to know how long the process takes for the petition and visa papers

More details are needed.

Confusing story, but generally US citizen may get married overseas. US citizen files relative petition, once it approved US citizen prepares...

I am a US citizen and am currently in process of filing i-130 for my spouse

If it does not work, handwrite it. Current I-130 has some issue.

As an out of status dependent of a G1 visa holder, can I apply for an F1 visa without leaving the United States?

If you are currently out of status, you change of status to F would not be granted.

10.99 is a contractor, get immigration attorney to look at details of your case.

B1, is not proper, need evaluation B2, J visa could be an option too.

Citizenship

Not a problem with US citizenship, check with contries of your interest.