Lewis has been involved in family law cases in both the High Court and the Court of Appeal. He specialises in all areas of family law with a particular emphasis on complex financial settlements.

Lewis’ financial cases often involve an international dimension, offshore trusts and assets, inherited/dynastic wealth, arguments concerning pre-marital and post-separation wealth and the valuation of family businesses.


Lewis has acted in the following reported cases:

  • IR v OR [2022] EWFC 20 – Lewis formed part of the team that acted for the wife, achieving an award of over £70m (exceeding the husband’s offer by over £20m). The case dealt with how wealth generated before the marriage and from the sale of a family business should be treated, as well as the enforceability of a pre-nuptial agreement.
  • Sharp v Sharp [2017] EWCA Civ 408 – Lewis assisted on the landmark financial case of Sharp in which he formed part of the team that acted for the successful appellant wife in the Court of Appeal. The case concerned the correct approach when dividing wealth in short and dual career marriages.


The Legal 500 consistently ranks Lewis as a “Rising Star” and has said: “Lewis Powers is bright and is on the up. He is efficient, hardworking and will go far.” The guide has also described him as “wise beyond his years – a star of the future.”


Lewis graduated from Queen Mary University of London in 2013 with an LLB (Hons) degree. He completed his LPC at the University of Law, Bloomsbury (Distinction) and trained at a Legal 500-ranked London family law firm. Lewis joined Stewarts in May 2020.

Accreditations and Memberships

  • Member of Resolution


Lewis is actively involved in work within the LGBTQ+ community. He enjoys music festivals and long country walks.