Linval is Chairman of the Public Accountancy Board Investigations Committee and a member of the Accounting Standards Committee of the Institute of Chartered Accountants of Jamaica. He serves as Director and Chairman of the Audit Committees for Sygnus Real Estate Finance Limited, and Canopy Insurance Limited. He is Chairman of the Audit Committee of the Council of the University of Technology. Linval serves as a Justice of the Peace. Some previous roles that Linval has held include former Director and Assurance Partner at Ernst & Young Caribbean, Jamaica Office; former Director at PriceWaterHouseCoopers, and the first Director in charge of its then newly established internal audit practice.