Catherine Costley

Spear’s Review

Fladgate partner Catherine Costley’s work encompasses the typical spectrum of HNW family law, namely divorce and separation, and the resultant financial and children matters.

Costley has particular expertise when it comes to cases that have an international dimension, and she has been praised by clients and colleagues alike for her diligent and effective handling of cases involving offshore structures, trusts and complex corporate structuring. She is also skilled at navigating sensitive relationship dynamics, including personality disorders, controlling behaviour, allegations of abuse and dependency issues.

According to the firm, clients come to Costley for her ‘sensitive approach, attention to detail, sound judgement and endless commitment to them’.

Costley trained at Rooks Rider, then spent time at Penningtons Manches Cooper and Payne Hicks Beach before joining Fladgate in 2023.

Notable cases

• A v M (No. 3) [2024] EWFC 299
• CS & DS (Children) [2022] EWFC 146