Mark O'Brien Legal provides both a chambers-style law practice and a legal consultancy arm.  

Chambers Law Practice

Mark has established a chambers law practice in association with ACA Lawyers who provide all back office support, including administrative, secretarial and IT services, and secondee lawyers as required for particular matters. 

Through this structure Mark provides expert and efficient legal representation in all respects of media law, commercial litigation, public authority investigations and related prosecutions. 

Legal Consultancy

Mark O’Brien Legal is a service for legal clients who seek assurance and guidance on who will conduct their legal matters, what strategy is adopted, how much they are charged and if this represents value for money.  We negotiate directly with legal firms and barristers to ensure the client’s interests are optimized.