Jimmy Paterson is said to be shocked at being given three months notice by the musician to vacate the High Park Farm on the Mull of Kintyre, where he is the live-in caretaker, reported Daily Mirror.
It is believed estate manager Bobby Cairns, 52, who lives in nearby Campbeltown, has also been let go after 35 years.
"They are very upset. They have been loyal servants to Paul and did the whole vegetarianism thing with no killing on the farm. They stuck to his principles so it seems quite harsh to dump them now," a source said.
"The land has been allowed to fall into a state of disrepair this last 15 years or so, hence making the change in management.
"They want to bring the land back up to scratch and make it workable again. It's time for a change. The Forestry Commission will be involved and Paul's people are taking advice on what to do with the land going forward," it said.