Perhaps I should have put the full poverty level tables which are calculated at https://aspe.hhs.gov but 10x the local poverty level seems more than fair.

> Again, any minimum salary requirement, becomes very easy to game (employee can be expected to pay back in cash, for the difference). This will put genuine companies (that cannot do such shady deals) at a great disadvantage

Paybacks are illegal now and should stay that way. A couple of criminal prosecutions would do wonders for fraud.