Ms Chan was admitted as an advocate and solicitor to the High Court of Malaya in 1981. She commenced legal practice in Maxwell, Kenion, Cowdy & Jones, a law firm in Ipoh. In 1984, Ms. Chan co-founded the legal firm W Y Chan & Roy, which has offices in Ipoh and Kuala Lumpur, and continued to practise law in Malaysia until 2007.
Ms Chan practice focus in Malaysia during the first seven years of practice was in civil and commercial litigation. In the following 2 decades, her practice concentrated on corporate securities and finance, and commercial matters.
In 2010, Ms Chan was admitted to the Law Society of British Columbia, Canada. She practiced in the Vancouver office of Borden Ladner Gervais (BLG), a national law firm in Canada, and was a member of BLG Tax Group and the Corporate & Commercial Group. She was also BLG Senior Consultant for Asia Pacific Market. She advises high net worth families, particularly business families in Asia, in the area of holistic global estate planning, involving inter-generational wealth transfer, asset protection, and capital preservation. In addition, she assists families to establish strategies and processes to promote family governance, maintain family unity, and uphold family identity and integrity. She works with an extensive contact base of financial institutions and offshore service providers for trust, foundations, and corporations.
Ms Chan applied to be a non-practising lawyer in British Columbia in 2018 in order to concentrate on consulting with business families and individuals, particularly in Asia, in the area of holistic global estate planning under Legacy 127 Consulting Inc. She remains the Senior Consultant for BLG.