Antonia Barker

Partner

Specialising in high and ultra-high net worth financial remedy disputes, offshore trust structures, non-disclosure issues, and financial provision after foreign divorces. Strategic, pragmatically cost-conscious, and recognized as a leading mind in family law.
Antonia

Overview & Experience

Prior to joining Hamblin Family Law as a Partner in 2024, Antonia was a Partner at one of London’s leading family law firms, where she worked closely with Georgina for almost ten years.

She is once again individually ranked as a ‘Next Generation Partner” in the 2026 Legal 500 directory and is described as “switched on” and a “brilliant mind, brilliant lawyer and on top of that, a brilliant person.

Antonia advises on all aspects of divorce and financial remedies, including financial provision after foreign divorces, and for unmarried parents. She has acted for a variety of high and ultra-high net worth clients to resolve the financial issues arising from their relationship breakdown.

Antonia’s financial cases usually involve complex and/or multi-jurisdictional legal and financial issues, including all manner of offshore trust and corporate structures, dynastic wealth, and both alleged and actual non-disclosure of significant assets by one party.

Every family law case is unique. Therefore, Antonia works with clients to identify their objectives and agree upon a strategic approach tailored to their needs, whether through alternative dispute resolution or by way of court proceedings where appropriate. She is always conscious of the potential costs of the process – both financial and emotional – and takes a pragmatic approach to her cases.

Antonia is incredibly proud to have won Family Lawyer of the Year – Partner (Bronze) at the Citywealth Future Leaders Awards 2025.

What Georgina says about Antonia: I could not be happier to welcome Antonia and her incredible legal brain to the team. She is a wonderful lawyer with incredible strategic insight and attention to detail. We are so lucky to have her and know that we are the envy of many a firm to have such an intellect and all-round wonderful person on board.

What the Legal Directories say about Antonia: Antonia has been ranked as “Up and Coming” in the Chambers & Partners 2026 High Net Worth Guide, highlighting her rising profile and exceptional work within the profession.

Chambers commentators describe Antonia as a “seriously impressive lawyer” and an “outstanding addition to the firm”, noting that she brings “a wealth of experience” and “knows matrimonial law backwards”. She has also been praised as “super smart” and recognised for her ability to support vulnerable clients through complex and emotionally challenging matters. 

Antonia is also recommended in The Legal 500 (2026) as a “Next Generation Partner”, further reflecting her growing reputation within the family law sector. Feedback highlighted by the directory includes:

“Antonia is a new addition to HFL.  She is switched on. I would highly recommend her – brilliant mind, brilliant lawyer and on top of that, a brilliant person.”

The Legal 500 (2025) also referred to her as “A brilliant litigator and nothing gets past her” and “highly intelligent and robust whilst also thoughtful and considered. A real powerhouse”.

 

Work With Antonia

To arrange a confidential consultation with Antonia regarding a high-net-worth divorce or financial dispute, please contact our London office.
Barker, Antonia Chambers (1)
Uk Next Generation Partner 2026