Here we have an interesting email between Vellozzi and Beckmann.

Let's set the stage - Marty has already signed his proffer letter, but he still needs to fill in one of the blanks to make his deal.
He needs to give the government a total of how many SDS's he sold.
He has to give George (his attorney) a number.

Note how the email exchange ends. "Just care about the ones on the books that I paid. The rest I don't care".

Could Marty possibly be talking about cash payments to Beckmann?

Could Marty possibly be talking about income tax evasion?

Could Marty possibly be talking about intentionally giving his attorney a false number of SDS's sold?

Could Marty be talking about having his attorney unknowingly lie to the FBI/AUSA?

You decide!