Han har ført og fører tillige en række retssager ved domstolene og klagesager ved Landsskatteretten inden for skatteret, momsret og afgiftsret i samvirke med andre retsgrundlag. Rasmus Smith Nielsen har møderet for landsretterne.

Han vil derfor både i klagesager, i retssager og ved rådgivning kunne yde en såkaldt juridisk 360-graders tilgang og tage højde for fx økonomiske, personlige og forretningsmæssige forhold. Alt sammen med henblik på den rigtige løsning for klienten.

RSN Law Firm specializes in tax law, VAT law, and excise duties, as well as the legal areas governing and related to these fields. RSN Law Firm has significant experience in providing advice and in handling administrative appeals and litigation within its areas of practice.

He has conducted and continues to conduct a number of cases before the courts and appeals before the National Tax Tribunal within tax law, VAT law, and excise duties, often in conjunction with other legal frameworks. Rasmus Smith Nielsen has rights of audience before the High Courts.

He is therefore able to provide a so-called 360-degree legal approach in appeals, litigation, and advisory work, taking into account, for example, financial, personal, and commercial considerations—all with the aim of achieving the right solution for the client.