What should be my next step, I was denied an F-1 visa for reason "Fraud/misrepresentation of material fact?

I would hire an immigration lawyer immediately. Depending on the specific findings of the consular officer, you may need a waiver to enter the US. ...

Since you entered the US legally and plan to marry a US citizen, you do not have to worry about maintaining legal status. If you do not marry a US...

I'm currently 17 years old but I've lived in Texas since I was 3. Is there any way I can apply for a Green Card on my own?

I agree with my colleagues. You cannot self=sponsor for a green card. Look at the 'Find a lawyer'' link at the top of this page and look for...

Can we Sue/file case against USCIS for giving H1B for a fraudulent applicant?

No, you cannot sue USCIS since you do not have the legal standing to do so. You did your part by notifying them of the fraud. For whatever...

Will my mother be able to file for my siblings? She’s on SSI. I will be a cosponsor when approved.

Yes, by the time they will need a co-sponsor you should be ready. I also recommend that your mother retain a lawyer to help her in this process.

Is there any problem for my immigration processing when I apply for FAFSA ?

You need to write a letter to the school formally withdrawing your FAFSA application and admitting your mistaken assumption. That way you have...

Can i ask for change of immigration judge on my asylum case

You can ask for a new judge but unless you can prove a personal bias against you or a conflict of interest, your request will be denied.

Foreigner bringing in more than $10,000?

Whenever you enter or leave the US with more than $10,000 you must complete a "Report of International Transportation of Currency and Monetary...

Am I eligible for F1 OPT if I have not completed 1 full academic year on F1?

To be eligible for OPT, you must have completed a full year of academic coursework. You can apply for OPT 90 days prior to the completion of your...

What should i do present myself or hire an attourney?

Yes, you should hire an attorney. That way you have an effective advocate who can protect your interest.