"Hitting SEND on my first active listing with @AllenTate," he shared from his office. "#Realtors, send me buyers #Realtorlife."
In another tweet he said "New firm, New start. New life."
Varner made accusations of "a deception" before revealing that Smith is transgender on the Survivor episode last week. Varner was immediately criticised by other players.
He repeatedly apologised, but was booted out of the competition.
Smith explained that he didn't mention that he was transgender because he didn't want to be known as "the trans Survivor player."
He writes in The Hollywood Reporter that by calling him deceptive, Varner invoked "one of the most odious stereotypes of transgender people".
Varner, 50, had appeared on Survivor twice before this season, but he had not made it anywhere close to the end of the game and its $1 million grand prize. His chances this season looked similarly bleak in the episode that aired Wednesday, leading Varner to try to cast suspicion on other players. That's when he asked Smith, a 29-year-old asset manager from New York: "Why haven't you told anyone here you're transgender?"
Varner said waiting the nearly 10 months for the episode to air, after knowing the damage of what he had done, was tough. He said Survivor producers had been supportive and had provided continued psychological counselling for Smith and himself since the filming.