Antonia trained at a West End firm and, on qualification in 2003, joined City firm Kingsley Napley as a solicitor specialising in family law. In 2007 she moved to market-leading family law firm Withers LLP before founding Burgess Mee in 2013 alongside Peter.
In her time at Withers LLP Antonia acted for the wife in the reported case of JKN v JCN which involved a transatlantic divorce. She has also worked on many small, medium and high net worth financial cases and complex children cases. More recently she was the solicitor advocate for the respondent in the High Court case of TW v PL.
Antonia is recommended in the Legal 500 2015 “[She] ensures that the best interest of the child is always of paramount importance” and the Legal 500 2016. Chambers and Partners 2016 recommends Antonia saying solicitors say she has “excellent strategic insight” and an “impressive intellectual prowess, matched with real humanity and compassion”.
Antonia has lectured on family law, written articles in the legal press and has contributed to text books on divorce.
She was formerly Secretary of Resolution (London Region) and sat on the steering committee for 'Parenting After Parting', an initiative designed to help separated parents rebuild their parenting relationship for the sake of the children.
Antonia co-founded the family law advice clinic at the Peckham CAB where she is a voluntary advisor and has trained McKenzie friends to assist litigants in person.