If successful, Mr Tillman believes it will help to clear his name. He then aims to make a stock market comeback as head of two fashionable London bars, the O Bar and Bar Royale.
He has served High Court writs for damages on Jeffrey Pinnick, Raymond Turner, and Shelley, Pinnick & Co. Mr Turner and Mr Pinnick, a former partner of Shelley, Pinnick, were directors of Gallini Group, a casual wear wholesaler which Honorbilt bought in 1988. Shelley, Pinnick was Gallini's auditor.
Honorbilt collapsed two years later and its receiver, Ernst & Young, issued a writ against Shelley, Pinnick. That claim is now worth pounds 17m.
Mr Pinnick, who is finance director of an entirely separate quoted company, Securitised Endowment Contracts, said: 'There is no substance whatever in the allegations, and I intend to vigorously defend it. Mr Turner feels the same.'
Terry Curzon, a Shelley, Pinnick partner at the time and now partner of a successor firm, Shelley Simmons Pinnick, said: 'We have received Mr Tillman's writ and I have no comment.'