Fergal has a particular focus on complex disputes and regulatory investigations involving professionals, particularly in the legal and financial services sectors.

He has acted in some of the most sensitive and high profile regulatory investigations and disciplinary cases, advising law firms and individuals on professional conduct issues, including their regulatory exposures and reporting obligations. He has also acted in an advisory role to one of the regulators in the legal services field.

He has many years' experience acting in the defence of UK and global law firms in high value and complex professional malpractice litigation, often with a cross-border element. He led the Clyde & Co team acting in the successful defence of the lawyers involved in the longest trial in the history of the Solicitors Disciplinary Tribunal, which resulted in the dismissal of all allegations.