Snyder - Washington Commanders had two sets of books.
Congress says Washington Commanders appear to have broken financial laws, owe money to visiting teams, season-ticket holders
https://www.espn.com/nfl/story/_/id/33724271/congress-says-washington-commanders-appear-broken-financial-laws-owes-money-visiting-teams-season-ticket-holders
In the letter obtained by The Associated Press, the committee said the team withheld ticket revenue from visiting teams and refundable ticket deposits from season-ticket holders.
The committee said emails, documents and statements made by former employees indicate team executives and owner Dan Snyder engaged in "a troubling, long-running, and potentially unlawful pattern of financial conduct."
One former employee testified before Congress saying the team had two separate financial books: one with underreported ticket revenue that went to the NFL and one with the full, complete picture.
According to testimony, Snyder was aware of the numbers shared with the league while also being privy to the actual data.