"She has taken on an enormous challenge but child cancer is something dear to both of us."
Lovegrove said their nephew, now 11 years old, was diagnosed with cancer at 18 months.
"We want the focus for the ball to be on child cancer not on Professionals McDowell.
"As well as artwork created by children living with cancer, we have some fantastic things up for auction," Lovegrove said.
"As always, it is the generosity of our sponsors and supporters that makes the fundraising possible."
Up for grabs on the night are a Mazda car, e-bikes, mountain bikes and artwork by local artists.
"There are loads of amazing prizes so I'm encouraging those coming, to do so with their cheque books and credit cards in hand."
Lovegrove said the McDowell team had spent hundreds of hours organising the event which promised to be a fantastic evening out in Rotorua.
Over the past 25 years, more than $5 million has been collectively raised by Professionals offices nationwide. Of that $720,000 has been by Professionals McDowell in Rotorua.