It's a good idea for you to sit down and discuss your concerns with an experienced attorney.
Having said that, the government should not punish you for the misconduct of another, unless you were somehow at fault as well. Did you make knowingly false statements?
Any and all responses to this and any other questions are intended for basic informational purposes only and are not legal advice.
If you furthered the lie and participated in the fraud they may make a finding that you commited fraud as well for making a false statement in connection with an immigration benefit. Seek counsel to review your file and go over the statement you provided..