Police in Tarpon Springs, Florida say the body was found in a shed near Palfrey's mother's home Thursday morning. There was a suicide note, but police did not disclose its contents.
Palfrey was convicted April 15 by a federal jury of running a prostitution service that catered to members of Washington's political elite.
She had denied her escort service engaged in prostitution, saying that if any of the women engaged in sex acts for money, they did so without her knowledge.