Leahy's passion for Whānau Ora would be a vital foundation in the drive to consolidate relationships across government through Te Kōpae, a collective framework to promote the economic and social wellbeing of Ngāti Rangi, Moataane said.
Leahy said she was "so impressed by the legacy of Ngāti Rangi leadership and love that has culminated in such a powerful vision for uri".
"I wanted to honour those who walked this journey before us, and all those today who inspire me in my greatest responsibility as a Māmā and a Nana of Ngāti Rangi uri.
"The strategic aspiration of the iwi is kia mura ai te ora o Ngāti Rangi ki tua o te 1000 tau: that Ngāti Rangi continues to vibrantly exist in 1000 years. This is an audacious goal, one that will guide my thinking and influence my actions. I feel greatly privileged by the opportunity to serve whānau in this way."
Moataane said Leahy had an intimate knowledge of Ngāti Rangi and had been a stalwart supporter of the iwi's settlement journey.
"Helen is the right person to lead and progress the growth and development of our organisation and Ngāti Rangi as a people as we strive to vibrantly exist in our majestic landscape."
Leahy and her whānau recently returned home to the Ruapehu rohe. She will officially start her role on August 25, following a pōwhiri to be held at Maungārongo Marae in Ohakune.