I found out my wife was cheating on me before and after I had filed a I-751 with the USCIS. After she was certain the I-751 was filed, she handed me a letter telling me she wanted a divorce, but lied about being with another man. I have as of this day hired an attorney and have filed the petition. I also notified the USCIS that I am withdrawing my sponsorship. I am convinced she married me for a green card to keep her daughters in the country to go to college and to meet a wealthy man. I lost my job a year ago and I believe she has planned the act of dutifull wife during this time in order to make sure the I-751 was submitted. What should I now expect the USCIS do? Should I notify ICE of fraud?

Notify USCIS and ICE of the facts, they determine the fraud.

aroleflin does not find this helpful : Because it turns out that ICE only investigates a crime that was committed.

You are incorrect. ICE is Immigration and Customs Enforcement. They are charged with enforcing immigration laws, statutory, regulatory AND criminal. They make investigating crimes involving aliens one of several priorities, and also include criminal aliens (there is a difference). From their website, with my own highlighting:

"U.S. Immigration and Customs Enforcement (ICE) places a high priority on combating illegal immigration, including targeting illegal aliens with criminal records who pose a threat to public safety. The Criminal Alien Program identifies, processes and removes criminal aliens incarcerated in federal, state and local prisons and jails throughout the U.S. It was created to prevent criminal aliens from being released into the general public. The program secures a final removal order, prior to the termination of criminal aliens' sentences, whenever possible."

A plain reading of this shows that it is a priority for illegal immigration, including criminal aliens.

ICE is the responsible agency for your situation. Your "not helpful comment" is not warranted. I gave you the correct information, you didn't understand or chose not to accept it.

With the information you posted, your wife is likely to get her permanent residence approved. You should certainly send a letter to the USCIS with details as to your concerns of marriage fraud. The more details the better. Be sure to include a receipt for the I-751 R/C, your wife's full name, DOB and POB. They will have your letter at the R/C interview and she will need to respond to your allegations. Please note that if you do not attend the interview, your wife will need to amend the I-751 requesting a waiver of the joint filing requirement, which will need the finalized divorce.

Send information to USCIS and ICE; divorce; and move on. Good luck.