She attended Duncan U. Fletcher High School in Neptune Beach, Florida, graduating in 1979.

[2] Tant has worked as a lobbyist for Holland & Knight and Steel Hector & Davis International.

In July, 2016, Tant cast Florida's ballots in the 2016 Democratic National Convention for Hillary Clinton.

Tant did not seek re-election as chair after the 2016 United States elections, in which Hillary Clinton lost Florida to Donald Trump and Democrats gained only three seats in the Florida Legislature.

[4][5] In November 2020, Tant was elected to the Florida House of Representatives, succeeding Loranne Ausley.