I came 6 years ago on behalf my mom's but later her marriage was a fraud so what is my legal status???

Many more facts are needed in order to answer your question. Please see

Is she staying here?

I agree with my colleague.

Is there a way to expedite a fiancé visa to get married by a certain date?

I agree with my colleagues. Please see

I agree with Atty Gagarin. Please see

My fiance has a H1B work visa and has been in the US for 5 years. What does he need to do to get a green card?

If you are a U.S. citizen, you can sponsor him for a green card as soon as you two get married. Please see

What are the steps in the process to change the status of my husband to a permanent residence and he's in Mexico?

You submit an I-130 on his behalf. When it is approved, he will get letters from the National Visa Center to submit documents and filing fees. ...

My h-1b renewal denied on 31 jan12 and my i-485 dates became current on dec 2012. my question is now what should i do?

I agree with Atty Doerrie. Please see

Out of status as F-1 right after turn in the adjustment of status paperwork through marriage, any chance of denial?

I agree with Atty Kaufmann. Please see

My b.f. has been in the U.S. 2 years, he has visa K-2 or K-3. His interview for green card next month, can he travel anywhere?

I agree with my colleagues.

My ex USC husband withdrew I-130. Am I in trouble with immigration now?

I agree with Atty Kaufmann. Please see