Sean O’Brien

Admission Dates:

Solicitor: 2006
Barrister: 2007


LLM (Sydney)
Macquarie University BA
Macquarie University DipEd
University of Western Sydney LLB (Hons)

Sean O’Brien was admitted as a Barrister in New South Wales in 2007. Before that he was Researcher to the Equity Division of the Supreme Court of New South Wales.
His practice comprises mainly commercial, equity and succession law.


Selected Cases

Blendell v Blendell [2020] NSWCA 154

Depofo Pty Ltd v Allan Charles Barnes & Ors [2019] NSWSC 949

In the matter of Fugace Pty Limited [2019] NSWSC 1203

Chow Kwok Chi v Chow Kwok Chuen (No 1) [2015] NSWSC 1347

McCoy v Caelli (2010) 4 ASTLR 132

Hu v PS Securities Pty Ltd (as trustee of the Joseph Family Trust) [2011] NSWSC 98; (2011) 82 ACSR 234

Masterton Homes Pty Ltd v Palm Assets Pty Ltd [2009] NSWCA 234; (2009) 261 ALR 382

McCoy v Caelli [2008] NSWSC 986; (2008) 13 BPR 25,515

Provident Capital Ltd v Printy [2008] NSWCA 131; 13 BPR 25,199

Stolfa v Hempton [2010] NSWCA 218; (2010) 15 BPR 28,253

Windridge Farm Pty Ltd v Grassi [2010] NSWSC 335; (2010) 238 FLR 289



‘A Message From The Free State of Prussia to Hong Kong’, author, Bar News Journal, Summer 2019-2020.

‘Essential Guide to Mortgage Law in Australia’ (1st Edition), acknowledged contributor.

‘Making Offers of Compromise Exclusive of Costs’, author, Law Society Journal, Spring 2010.

‘The Making of Law: An Ethnography of the Conseil D’Etat’ by Bruno Latour, author, Bar News Journal, Winter 2010.

‘Proportionate Liability – Five Years On’, co-author, CPD paper, College of Law, May 2010.


Professional Memberships

New South Wales Bar Association



(02) 9236 4905


(02) 9233 6469