Snowy Monaro Mayor John Rooney will face a vote of no confidence at this week's council meeting.
Late on the agenda of Wednesday's meeting is a notice of the motion by councillor John Last, which follows comments made by the mayor about the performance of the former Bombala Council.
A spokesperson from Save Bombala Inc has written to Cr Last, advising him that he has the full support of the Save Bombala committee.
"We believe such a motion is necessary to restore some credibility and stability to the Snowy Monaro Regional Council. The issues arising from the mayor's comments regarding the performance of the former Bombala Council are still yet to be fully addressed in many residents' minds," they wrote.
The letter went on to say "strong competent leadership is necessary if council is to deliver the promised benefits of a new merged council".
Former Bombala Council mayor Bob Stewart said he would be supporting the motion just to have the discussion.
"I believe Mayor Rooney has made some incorrect comments over a period of time about the former Bombala Council," Cr Stewart said.
"The comments made about the former Bombala Council were inappropriate, as was his retraction he made on radio."
While Cr Rooney clarified his "inappropriate" reference to the former council being "bankrupt", he stood by claims Bombala was "unfit for the future" and to de-amalgamate "would be a mistake" and a "waste of money".
In response to reports of the no-confidence motion, Cr Rooney said the issue of whether Bombala Council should be reconstituted "was settled in the last state election".
"Voters had a clear choice between the demerger and pro-merger candidates," he said.
"The victory of the Coalition government in the state election has taken the demerger option off the table.
"It is pointless arguing over whether the former Bombala Council could survive. It is not coming back and most people in the Monaro electorate have endorsed the state government's policy of amalgamating small, non-viable councils.
"The important thing for Snowy Monaro councillors is to focus on our task of building a better future for everyone in the Snowy Monaro region," Cr Rooney said.