Launched earlier this year, Cuncannon is a boutique litigation and class action firm.
Group chief executive Michael Daly has resigned after more than three years in the top job.
Cameron McInness continues long-running family legacy.
Warwick Tauwhare-George will take up the role from November 30.
Alan Thomson will begin in the new role on November 4.
Mark Thomson takes over from Precinct Properties CEO Scott Pritchard, who has led the council through a pivotal period since 2020.
While he will no longer be in his corporate chief operational integrity and safety officer role, Morgan will continue flying for the company.
Meg Matthews will officially join the board on October 29 at the next annual meeting.
Nick Yager joins Altis after spending more than 15 years in senior leadership roles.
Group CFO Andrew Dixson has been with Heartland since 2010.
