Full coverage: Courts

Music promoter Peter Aiken and his wife Mary have launched a High Court action against Howth neighbours; Riverdance duo John McColgan and Moya Doherty, and Gay Byrne's daughter Suzy O'Byrne.

Former Davy boss and shareholder Brian McKiernan said the matter was urgent as the board of Ailmount owes a duty to the 722 investors in the company to recover the alleged loss as soon as possible.

AIB alleged the sister-in-law of €5.8 million judgment debtor Justin Burke may be in league with him in attempts to frustrate enforcement. Her husband, a well-known Galway hotelier, says nothing could be further from the truth.

After borrowing from US-managed funds, the Irish-founded renewable energy developer announced the restructuring of its projects in Chile, triggering allegations that it is trying to evade its responsibility to its lenders. Mainstream describes the allegations as "baseless" and will fight the case.

Described by a High Court judge as a "very unusual application", former global strategist at the brokerage Donal O'Mahony is trying to stop LeBruin Private from issuing proceedings.

SJI Equities, a Belizean-owned subsidiary with a registered address in south Dublin, was allegedly set up with one asset and one purpose – to fight an epic legal battle in Norway over a €5 million investment that tanked. It lost, having racked up a seven-figure legal bill. Then a liquidator was called in.

The National Children's Hospital has been beset by financial overruns and delays. Now a suit brought by the board of the hospital against the main contractor BAM has been re-entered into the Commercial list after settlement negotiations ran out of steam.

In an unprecedented move, the Bar Council is backing protest action by criminal law barristers. It follows a number of informal walk-outs by practitioners over the failure to restore Fempi-era pay cuts.

Moderna claims its patented mRNA innovations have been breached by Pfizer, the US pharma giant with a big footstep in Ireland. It is one of several patent infringement suits lodged by the US biotechnology firm.

Law firm Crowley Millar has said it is concerned investors might feel under pressure to approve the restructuring scheme proposed by the company and this could “sow seeds of mistrust amongst the investors and the brokers”.