City lawyer Ian Rosenblatt has filed a legal claim against music mogul Simon Cowell in London’s High Court over fees he alleges were wrongfully withheld.
The lawsuit follows Rosenblatt’s departure as a director of Syco Entertainment, Cowell’s production company, and from his role as a personal adviser to the television personality.
Quinn Emanuel’s partner Gregory Pantlin and senior associate Emma Bohnman-Bryant are acting for Rosenblatt, with the claim formally filed in the Commercial Court.
Rosenblatt was a key member of Cowell’s internal team that secured a landmark $125 million securitisation deal for the intellectual property rights attached to the Got Talent format.
He also led the legal team that advised Cowell in 2020 on the purchase of Sony Music’s stake in his television joint venture, marking another significant transaction in their working relationship.
According to legal documents reviewed by Sky News, Rosenblatt alleges Cowell breached an agreement over transaction fees following his stated intention to step down from Syco in October 2022.
The claim documents also contain allegations that there was “a series of threats against Mr Rosenblatt in an effort to deter Mr Rosenblatt from pursuing his debt and/or damages claim.”
Cowell has instructed law firm Joseph Hage Aaronson and Bremen to handle his defence against the allegations brought before the Commercial Court.
Rosenblatt is a well-established figure in City legal circles, having founded Rosenblatt Solicitors in 1989, a firm that grew into the broader Rosenblatt Group over subsequent decades.
In 2018, the Rosenblatt Group listed on the London Stock Exchange, becoming the fourth English law firm at that time to achieve a public listing.
His profile took a damaging turn following the dramatic collapse of RBG Holdings, which drew significant attention from the legal and financial press.
Prior to the group’s collapse, the board terminated its consultancy agreement with Rosenblatt and made a series of allegations against its founder, which he publicly rejected.
Rosenblatt described those accusations at the time as “untrue and defamatory,” firmly disputing the claims made against him by the board.
He subsequently established Rosenblatt Law, a new firm that took on a 40-person team inherited directly from RBG Holdings following its collapse.