Wakiia signed the Bay of Plenty (Fedarb) sheet of the Treaty of Waitangi at Ōpōtiki on 27 or 28 May 1840. He was a Te Whakatōhea rangatira (chief).
In January 1840 he was one of the rangatira who signed the sale document for the Pākihi block at Ōpōtiki.