Over the past two decades the Catholic St John of God Order in Australia which employed Roger Mount as a brother when the alleged abuse occurred has paid more than $100,000 to his alleged victims and apologised.

Yet the then Brother Mount, who moved to Papua New Guinea in the 1980s and became a priest, has never faced any official inquiry over the allegations, which involved boys as young as 11 and 12 at homes run by the order.

Fr Mount has denied the allegations.

Efforts to contact him about the visa issue and his suspension were unsuccessful on Monday.

Port Moresby Diocese vicar-general Father Ben Fleming confirmed on Friday that Fr Mount had been suspended in 2011 and had been refusing to leave the parish ever since.

He also confirmed Fr Mount was living in the country illegally, having not had a valid visa for four years .

"It's something I've been working on for the past two years," he said.

Fr Fleming said it was expected Fr Mount would be sent back to Australia as soon as the matter could be arranged with PNG immigration authorities.

He said that in the interim Fr Mount would be accommodated in transit accommodation in Port Moresby and would not be working as a priest. 

"He is stood down," he said.

On Monday Fairfax revealed how NSW resident David McNamara received an apology and a settlement of $91,000 after he complained to the Catholic Church about abuse by then Brother Roger Mount and two other brothers from the St John of God Order in the 1960s.

Mr McNamara, 60, has said that the failure by the church to investigate Fr Mount was a disgrace.

The then Brother Mount originally worked with the St John of God Order at the Kendall Grange home for boys with intellectual disabilities at Morisset, south of Newcastle, and at a home in Victoria from the 1960s.

As a priest in PNG he rose to occupy senior roles in the Port Moresby diocese before moving to Sogeri parish.

PNG Immigration Department could not be contacted for comment on Monday.