A fundamental disagreement over commercial policies and not shareholder oppression is at the core of a dispute at family-owned Dublin mental health provider Highfield Healthcare, the High Court has been told. Andrew Eustace, clinical director of Highfield in Whitehall, “wholly denies” allegations that Sparantus Ltd, the company behind the facility, is being run in disregard to the interests of his uncle Denis Eustace, a retired consultant psychiatrist with a 29.1 per cent stakeholding in the business. Furthermore, he claims in an affidavit that the 76-year-old’s behaviour as a company director of Sparantus has been “non-co-operative and at times, positively, disruptive”.…