LSL, LLP | 1,916 followers on LinkedIn. Acountants providing solid guidance, support & solutions to businesses, governments & non-profits | LSL provides solid guidance, support & solutions to businesses, governments and non-profits. Our team delivers the comprehensive tax, audit, consulting, advisory and accounting services you expect with specialized expertise in several industries that require knowledgeable and timely oversight. Operating throughout the United States, we are one of the largest CPA firms headquartered in Orange County, CA.