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Frank Arndt

Paradigm Family Law

Location London / York

About Frank

Frank is a founding partner of Paradigm Family Law LLP. He is a dual qualified Solicitor in England & Wales and Rechtsanwalt in Germany. He is also a qualified Judge in Germany.

He has considerable expertise in international high profile or ‘big money’ financial relief cases with complex onshore or offshore business or company and trust structures. He dealt with cases including:

- inherited or pre-acquired wealth issues;
- concealment or dissipation of assets; and
- He regularly advises on difficult enforcement cases with international aspects.

His areas of specialism also include:

- complex worldwide freezing orders; and
- cases with pre-nuptial and separation agreements or Civil Partnership disputes.

Legal 500
Frank Arndt is named as a Leading Individual in Legal 500 2017 and Paradigm Family Law is named as a leading family law firm.

Paradigm Family Law won the Law Society Excellence in Business Development Award 2017. This Award recognise the commitment, enthusiasm and passion that Solicitors dedicate to serving their clients, and – in the process – underpin our world-renowned legal system.

’The awards showcase the first-rate work and dedication of the profession to their clients and the wider community, and the event is one of the most rewarding and memorable days in the legal calendar,’ said Society president Joe Egan.

Frank regularly receives referrals from his worldwide established and experienced international network in relation to foreign divorces or application brought pursuant to the MPFA 1984 Act. The referrals also include cases with a “forum shopping” element or contested international jurisdiction disputes.

He represents regularly clients in Schedule I Children Act 1989 cases with an international aspect and he acted for fathers or mothers in International Child Abduction Cases.

He appears regularly on Television / Radio / Newspaper like BBC One, ITV, CNBC, ABC News, VOX Media, FT, Forbes, LeFigaro, FAZ (Germany) etc.

Frank has been shortlisted as Jordan’s International Family Lawyer of the Year 2015 and nominated 2016 and 2017.

He also has been described by Family Law QC’s and Deputy High Court Judge in London as

“an excellent adviser and mentor to all his clients” and
with a “great eye both for detail and for the bigger picture, and gives the rounded service which is absolutely necessary in this sphere of practice”

He is also a member of the

International Bar Association,
International Society of Family Law,
Re United,
the German Bar at the Federal Court in Celle (“Oberlandesgericht Celle”) and
the Family Mediator Association.
Publications (For a summary of his publications please look at my Linkedin Profile).

Notable cases:

K v K (Ancillary Relief: Deed of Appointment) [2007] EWHC 3485 (Fam) [2009] 2 FLR 936: Judgment concerning the question whether or not a non-nuptial settlement can become a nuptial one.

Jefferson v O’Connor [2014] EWCA Civ 38 (28 January 2014): Appeal hearing regarding a jurisdiction issue involving Art 3, 12, 16 and 19 Council Regulation (EC) No.2201/2003 (Brussels II Revised) and Paragraph 9 Schedule 1 Domicile and Matrimonial Proceedings Act “DMPA”.

Lothschutz v Vogel [2014] EWHC 473 (QB) (24 January 2014) : Application by H for costs orders to be set aside after a European Enforcement Order Certificate in relation to maintenance was rescinded by the German notary.

E v E (Art 19 and Art 16 BII rev.) [2015] EWHC 3742 (Fam): Judgement concerning the relationship between Art. 16 (Court first seised) and Art 19 (lis pendens) of Brussels II revised. Specifically, whether a Court should simply “decline” jurisdiction, or do so by way of “dismissing” in the light of the decision of the Court of Justice of the European Union (“the CJEU”) in A v B case C-489/14, 6th October 2015.

Harris v Harris [2018] EWHC 1836 (Fam) (03 July 2018) : The husband’s appeal against the way in which outstanding spousal maintenance should be capitalised was allowed on the grounds that the judge had double counted (interest and penalty payment). The husband’s further grounds for appeal relating to the tax payable on the sums were dismissed.


Years of experience


About their firm

Welcome to Paradigm Family Law, award winning niche practice specialising in divorce and family law advice run by matrimonial experts James Thornton and Frank Arndt.

We have over 30 years experience in our field, and provide specialist legal advice for divorce and family matters including international disputes. We won recently the Law Society Excellence award in business development in respect of our unique fixed fee model. 

We are the first divorce solicitors to offer transparent clear fixed fee solutions at the outset of the case covering first meeting to conclusion including representation in financial proceedings. No alarms, no surprises. Just certainty of fees from the outset, removing the traditional hourly-rate fee structures of old and surprise cost reviews.
Our legal advice and assistance provides solutions.

The fees for your case are fixed from day one, enabling you to budget with certainty and security and without the stress of unknown increased costs in the future as your case progresses.

Our case management systems allow easy and regular updates on your case without extra fees.

At Paradigm Family Law we put the client at the heart of what we do.

What clients say:

“Thank you for all your patience and good humour during the tribulations of the divorce! My life is now much more peaceful & content.”

“Thank you so much for everything, your calmness and dry sense of humour has made everything so much easier.”

“It made a refreshing change to be able to speak directly to you when making the initial call. In just one brief telephone call, you grasped and understood the financial and litigation issues and gave me clear advice as to the next steps to take in relation to my ex-husband’s application to vary a Maintenance Order.”

“We worked together on a complicated family trusts case in the Court of Appeal; the work can only be described as outstanding.”


Areas of expertise

  • Family Law