Margaret O'Sullivan

Practice Areas

Margaret founded O’Sullivan Estate Lawyers LLP 28 years ago to focus exclusively on estate and trust law in a bespoke law firm. Her clients are high-net-worth (HNW) Canadians, family offices, and global citizens who own assets and business interests in many jurisdictions.

Her practice involves all aspects of trust and estate work, including:

- Estate Planning, Cross-Border and Multijurisdictional Succession

- Trust Planning

- Will Planning

- Incapacity Planning

- Trust and Estate Administration

- Advice to Executors, Trustees, Attorneys, Guardians, and Legal Representatives

More than 10 years ago, Margaret and her team developed 3 niche areas of trust and estate law:

1. Cross-border succession planning as well as estate and trust administration (Canada-U.S.)

2. Multijurisdictional succession matters

3. Estate planning and administration for the Modern Family

Margaret is recognized as a thought leader by her peers. She is a sought-after speaker, moderator, and panelist at all the major private client lawyer conferences worldwide. She is a regular columnist for LAW360 Canada (LexisNexis), Fund Library, and Money and Family Law newsletter.

The firm has blogged continually for 13 years; today, more than 3,000 subscribers enjoy the firm’s insights twice each month.