Mayfair Office GOOD LAW (Mayfair) Boutique solicitors law firm specialising in property, commercial, company, family, wills, probate and private client. Location Berkeley Square House, Berkeley Square, London W1J 6BD Contact 07900 688354 A warm welcome to GOOD LAW INTERNATIONAL. To learn more about us and our practice areas, we invite you to browse through our website andcontact us or book an appointment.