ICS Legal website, we hope that you find our pages useful and informative. ICS Legal specialize in UK Immigration advice | UK Visas Advice | Marriage Visa | British Citizenship | Tier 1 Visas. ICS Legal is an OISC (Office of the Immigration Services Commissioner) regulated legal practice, providing immigration advice and visa advice. As Immigration Experts we also provide support in general immigration advice on how to enter the United Kingdom to study, work, visit or settle with family. We also provide support in general and complex British nationality matters. In addition to the aforementioned, our services also expand into general visa advice on migrating to the United Kingdom through the European free movement rights.