Check the Solicitors Regulation Authority (SRA) register to confirm the person is authorised and to view their firm’s recorded details. You can also use the Law Society’s Find a Solicitor service, but verify the solicitor directly on the SRA register before instructing them. If the adviser is not a solicitor, check whether they are regulated by the Immigration Advice Authority (IAA), formerly the OISC. Be cautious of anyone promising a guaranteed visa or outcome, and seek independent advice if you are unsure.