Born in Hong Kong, Elsie was educated in the United Kingdom and Hong Kong and obtained her LLB degree at Sheffield University. Elsie passed the Solicitor's Final Examinations at Manchester Metropolitan University, and was admitted as a solicitor of the High Court in Hong Kong in 1995.

Elsie is also accredited as a Family Mediator on the Hong Kong International Arbitrator Centre's Panel in 2001.

Actively participates in community service, Elsie is a frequent speaker and provides legal advice at the Hong Kong Family Welfare Society and the Hong Kong Federation of Women's Centre.