Rumours about Madonna and Guy Ritchie’s strained relationship have hit fever pitch yet again with reports surfacing that the pop superstar is seeking legal advice from Paul McCartney’s divorce lawyer.

Madonna has met with Fiona Shackleton, the attorney who represented Paul McCartney during his court battle with Heather Mills, according to Access Hollywood.

The pop star reportedly approached Shackleton after initial talks with a rival law firm fell through.

The latest divorce story comes just two weeks after a representative for Madonna called news that the singer had hired Mills' lawyer Nicholas Mostyn "completely untrue".

A rep tells Access Hollywood there will be "no comment at this time" concerning the new story, while a spokesperson for Shackleton says, "We have a policy of not speaking with the press."

Guy Ritchie is reportedly being represented by Mayfair law firm Forsters.