Marc's place is showing as active online, not under contract. The agent that has the listing would have marked it under contract. Not all do, but she is one of the more prominent agents in the area and I think she would play by the rules.
There are no lots or homes listed as under contract or pending on MLS presently that are on Governor's Island, for what its worth.
Maybe he can get a good deal on Patrick Chung's place in Meredith?