Land League West, a group formed to oppose the repossession of family homes and farms and to support individuals facing the loss of their home, is to stage a demonstration outside Castlebar Courthouse on Monday.
More than 100 cases involving repossessions are on the list for the County Registrars Motion Court.
Gerry O'Boyle, who ran as an independent candidate in the recent South Leitrim/Roscommon bye-election, heads up Land League West.
He said Land League West is launching a Mayo branch on Wednesday, December 3, in the McWilliam Park Hotel, Claremorris, at 8.30 pm.
The group is also to start holding weekly clinics for families and individuals who fear they are in danger of losing their homes or farms.
The clinic are by appointment only.
Mr O'Boyle said people can contact him on (086 ) 2190609.