The founder and former managing partner of Big Four accounting firm EY's affiliated Hong Kong law firm has left after a year of rapid growth.

Harry Lin, who specialises in mergers and acquisitions and capital market transactions, joins local commercial boutique Chungs Lawyers as a consultant. Lin leaves EY after more than four years in association with the auditing giant. Previously, he practised at local firms as a partner at Li & Partners and head of the China practice at Fred Kan & Co.

In 2015, Lin launched Lin and Associates and formed an association with EY. After several years of relative stagnation, EY – along with its Big Four rivals – started to aggressively expand its legal services arm in Hong Kong last year.