If a person entered into the U.S. from Mexico illegally as a child, then returned, lived in Mexico for 1 year, and entered illegally again as a child they face a permanent ban. With that being said, if this person when applying for a family waiver didn't list the second entry, has school records, a GED, proof of residency in the US for over 15 years, and no criminal record, would there be a high risk of them being caught?
The only record this person has of being in Mexico prior to second entry is their enrollment to a public school for 1 year.

Would the school record even be a factor?
Would they go the trouble of researching school records to prove she lied on her application?

her choices are:

- apply for DACA with no chance of ever becoming a resident and always being in fear of DACA being reversed

- Remain in the shadows and hope to never get caught

- Apply for DACA list on one entry, and then apply for advance parole

They're all a gamble that can result in deportation at some time, but The third option seems like the most logical.
Thoughts?