The I-130 interview is solely to go over the bona fides of the marriage. If he has a prior deportation order, worst-case scenario is that ICE can arrest him. Best-case, I-130 is approved and you can re-open removal proceedings.
I basically agree with my colleauges.
There is no law that says that a foreign national who is in the U.S. on a tourist visa (B-2) cannot marry a U.S. citizen and then file for adjustment of status to lawful permanent residency while remaining in the U.S. However, the B-2 visa is a nonimmigrant visa which means that when a foreign national is approved for this visa, the consular official believed that you did not intend to permanently immigrate to the U.S. and planned to return to your...
You can apply for her now, but she will likely not be elgible for a visa for 4-5 years. When you become a citizen, she will be eligible for a visa right away with about 4 -8 months of processing time. Entering on a B-2 tourist visa with intent of remaining could be perceived as fraud
Plan accordingly with a lawyer
Generally, a person who entered the country illegally and is here without proper immigration status must return to his/her home country to file an immigrant visa petition to be able to return to the United States. The problem is, once he/she leaves the country, he/she faces an automatic unlawful presence bar of inadmissibility of 3 or 10 years before they can return (3 years if he/she had been in the U.S. less than 6 months and left voluntarily, 10 years if in the U.S. more than a year).