found this law on agent trust.That it does!! In other fields it's called commissions, bonuses, finders fees, etc... Perfectly legal as long as you declare the income and pay your taxes on it. The main issue is that there are employees of Federally funded institutions (schools) accepting bribes which is totally illegal. And the money used for the bribes is being laundered, or hidden, by various financial entities including agents, financial advisors, shoe companies, etc...
doesnt exclude agent commissions, but does prevent agents from baiting student athletes or their associates with something of value before they sign a contract. If Lamont E. rec'd $ in advance, it would be a clear violation. Seems that if Lamont E. rec'd $ After agent contract signed, there would be no clear legal conflict.
https://www.ftc.gov/enforcement/statutes/sports-agent-responsibility-trust-act