He worked as a policeman, lawyer and previously was a Samoan Police Chief Inspector and a secondary school teacher.

He is an elder deacon and lay preacher for the Congregational Christian Church of Samoa in the village of Matautu Falelatai.

During the 2001 general election, Tuimalealiʻifano ran for the legislative assembly contesting the constituency of Falelatai and Samatau as an independent candidate.

The reason why they refused to support Tuimalealiʻifano was that they could not bare to see a Tama-a-Aiga be involved in a political conflict where they would face ridicule, damaging the title.

Increased tensions during the campaign led the village council to banish Tuimalealiʻifano from Falelatai several weeks after the election.

[14][15] Sualauvi then issued a proclamation to prevent the Legislative Assembly of Samoa from meeting, triggering a constitutional crisis.

[18] On 1 July 2022, his one-year term as the 29th chancellor of the University of the South Pacific commenced, succeeding Niue's Dalton Tagelagi.