"I can't thank our local community enough for welcoming them with wide open arms. They're both absolutely thriving. Ashlee would be so proud of them, she was such a doting mother," she said.
She shared memories of Ashlee with the girls every day, showing them photos and retelling events from their mother's younger years.
"They're sleeping in their mummy's old room with her belongings all around them.
"Every night I kiss them good night and tell them their mummy loves them, just like Ashlee would have wanted me to," she added.
Ashlee was described at her funeral, attended by an estimated 700 mourners, as a "happy soul" surrounded by giggles and laughter, and as a young woman brimming with confidence and love for her children.
Her former partner, 29-year-old Jimmy Akuhata, has been charged with her murder.