But Maas, if he comes to Hamilton, is not a free agent deal, that's a trade of a player under contract. Nothing needs to be "under the table," although it is so that the Esks can keep Maas until the end of the year.
As for the list, I heard Dave Hack is waiting until the end of the season to join the free agent market. If he plays a couple of games for the one team that needs him now, they'll hold his option next year, and he won't be able to sign for what he's worth.
He's a great player, though, and would be an asset to any team and to their community.