Lewis has been consistently ranked in the top band of the leading silks specialising in Family Law in The Legal 500 and in Chambers & Partners where it has been said that his “combination of advocacy, numeracy and client skills means he has everything”, and even that he “‘makes everything seem possible’ to the point where ‘it almost seems like he can walk on water’”. Slightly less hyperbolically it has been said that his “numerical and analytical dexterity are unsurpassed” and that he has “exceptional judgment” and “willingness to listen”, and that he is “intelligent, forceful and always ready to take up the cudgels”.
From the beginning of his practice he developed his advocacy skills in the criminal courts but since about 1995 he has practised exclusively in family law, and in particular in the sphere of "big money” financial remedies (financial provision following divorce) and ‘Schedule 1’ case (financial provision for children of unmarried parents). He has appeared in many of the leading cases either as junior or, since 2002, as leading counsel.
He drafted the FLBA's response to the European Commission's Green Paper ("Rome III") on the applicable law and jurisdiction on international divorce matters, has been a long time member of the editorial board of the FLBA publication 'At A Glance' containing key information on all aspects of ancillary relief (and available in many good book shops), and a member of the team responsible for @eGlance ©. He has a particular interest in matters mathematical and has for many years been a member and latterly chairman of the Duxbury Working (sic) Party. From time to time he shares the dubious benefit of his wisdom through lectures, seminars and the writing of articles including ‘An Alternative View of Duxbury: a Reply’  Fam Law 614.
Appointments and Memberships Lewis has been a member of the Family Law Bar Association (FLBA) since 1985, and in 2004 was elected as a Fellow of the International Academy of Matrimonial Lawyers (IAML).
Education Lewis read Jurisprudence at Brasenose College, Oxford.
Lewis is married to Philippa Johnson, a Family Mediator and former editor of the Family Law Reports. They live in crumbling grandeur in the wilds of Essex occasionally with their four sons. He enjoys eating, walking, watching cricket and listening to jazz and Country & Western music; but not necessarily in that order.