High Court dismisses a professional negligence action against a former solicitor, ruling that the plaintiff's claims were already adjudicated in a prior judgment and thus constituted res judicata. Additionally, any new claims were barred by the rule in Henderson v Henderson, as they should have been raised in the earlier proceedings. The court emphasised that the principles of res judicata and Henderson v Henderson are designed to prevent repetitive and abusive litigation, and found no special circumstances to justify a departure from these principles in this case.
professional negligence, res judicata, Henderson v Henderson, abuse of court process, solicitor-client relationship, breach of contract, litigation finality, counterclaim, plenary hearing, litigant in person, Isaac Wunder order, adjudication, Legal Costs Adjudicator, High Court of Ireland.