Protect Rotorua's Sharon Love, chairwoman of the Rotorua Deer Farmers Association, said a local deer farmer had engaged Ms Chen to advise landowners and farmers.
"We as a community group are passionate about the focus of this process being about the lake and working together as a community to find the right solutions," Ms Love said.
"Someone is paying for Mai Chen to come and give us some advice. That means we have got a voice. We can actually have a voice." Ms Love said the group hoped to start a fund so they could continue to use her legal services. She said many people in the catchment zone had "given up" and were "over it", as the lake issue had been dragging on for years.
However, it was vital people understood the rules were going to affect them and their livelihoods, she said.
Speakers also include Pahiatua farmer Andrew Day and Corina Jordan from New Zealand Fish and Game Council.
-The meeting will run from 3.30-5.30pm at the Holiday Inn, 10 Tryon St. All are welcome.