The money is accounted for, the executive meetings are over, and they've seen Chelsea perform on the pitch. Now, as we reach the deadline for final offers, the four consortiums bidding to buy the Premier League club - for in the region of £2.5bn - can do no more.
What links them is billionaire wealth, experience of running American sports teams and a desire to take the west London side to a new level.
But the differences between them will be key in deciding who replaces Roman Abramovich as owner, with a preferred bidder expected to be finalised next week before the Premier League and government approve the most expensive sports team sale in history.