Mark Geoffrey O’Brien is the founder of Mark O’Brien Legal, which provides expert and efficient representation in all aspects of defamation, media law, commercial litigation, public authority investigations and related prosecutions.
The firm, led by Mark Geoffrey O’Brien, Paul Svilans and Steven Lewis, represents various large media organisations, politicians and individuals including high profile plaintiffs. The firm has a particular expertise in reputational management.
Mark O’Brien Legal is one of the few media and defamation practices in Australia which has the expertise and dexterity to service both large media clients and individual high profile plaintiffs against other non-client media.
The firm is listed as a ranked firm by both the Chambers and Legal 500 legal guides. Members of the firm are also ranked as leading and recommended media and entertainment lawyers by Doyle’s Guide.
The firm has also built a significant reputation in aggressively representing its clients and is regularly referred to as such by the media:
“…feared defamation lawyer Mark O’Brien” (Margin Call, The Australian, 7 February 2018)
“...one of the country’s top defamation lawyers Mark O’Brien” (B&T Magazine, 2 February 2018)
“…one of the nation’s most feared defamation lawyers” (The Sydney Morning Herald, 30 March 2018)
DISCLAIMER: Mark Geoffrey O’Brien is not to be confused with Mark Leo O’Brien, the Edgecliff solicitor sentenced to 10 years’ imprisonment for serious fraud charges.
