(NYPOST) — Hey, Kennedys, keep off the grass!

The Hyannis Port lawn where the political clan famously played football is off limits these days to relatives unless they pay rent, as a family feud over the Edward M. Kennedy Institute simmers.

The institute is supposed to carry on Ted Kennedy’s legacy with a 40,000-square-foot facility at the University of Massachusetts campus in Boston. But it also now owns the main house in the Kennedy compound — the storied home of Joe and Rose Kennedy where the family gathered in good times and in bad.

Note: Read our discussion guidelines before commenting.