Tony Harrop-Griffiths has been instructed by the local authority in Court of Protection proceedings concerning Tony Hickmott since 2021.
Mr Hickmott has a diagnosis of autism, learning disabilities and additional complex care needs.
His parents began the proceedings in 2019 as their son had been detained under the Mental Health Act in a secure hospital for more than 21 years. Initially he had been detained temporarily.
Although a placement has been found for Mr Hickmott, the court continues to keep his case under review.