Are you the petitioner or beneficiary? If the Immigration Service makes a determination that the foreign national spouse entered into a marriage purely for the purpose of procuring an immigration benefit, he/she will be permanently illegible for the issuance of any visa.
That being stated, it appears that you are a U.S. petitioner requesting that ICE arrest and deport your spouse from the United States. If you made these statement at your interview only to spite your spouse and...
Until a new law passes, it is pure speculation whether not your friend is a good candidate.
Immigration background check are extensive - everything will show up. For immigration purposes, the history you've outlined above is appears to be highly relevant and very significant.
There is no question - you need to retain an attorney. There are so many great immigration attorneys in your area. The attorney is there to protect you and prepare you for the interview. Remember, you are walking into the U.S. Citizenship & Immigration Services, a federal agency. You will be interviewed by a federal agent - this is serious. You should consult with an attorney BEFORE the interview so that he/she can prepare you for the interview and collect bonafides that you may not be...
The question is whether your father generated more than one year of unlawful presence in the United States.
If an alien:
1) generates one year or more of unlawful presence (i.e. remained in the United States one-year after the expiration of his visa) and;
2) that alien thereafter departs the United States (leaving on voluntary departure qualifies as "departing from the United States"), that person in statutorily illegible for the issuance of a visa for a period dog ten years.