Los Angeles [US], February 17 (ANI): American musician Brian Wilson’s business manager LeeAnn Hard and his longtime manager and publicist Jean Sievers have filed a petition to become the Beach Boys frontman’s conservators, managing his personal and medical decisions, the Hollywood Reporter reported citing the Associated Press. Wilson is receiving medicine for dementia and has a major neurocognitive disorder, according to paperwork filed with the Los Angeles Superior Court on Wednesday. The Associated Press added that these documents include a doctor’s declaration. Wilson’s counsel claimed in t…