About Perez Procope Leinveer LLP (PBP Lawyers)

Perez Procope Leinveer LLP, known as PBP Lawyers, is a Toronto firm focused on health law, estate advocacy, and civil rights. The firm was founded in 2016 and works out of an office at 55 University Avenue, representing clients before administrative tribunals and all levels of court in Ontario. Lisa Leinveer joined the firm as a partner in January 2025, and the firm's name was updated to reflect the new partnership.

The founding partners bring long backgrounds in capacity and mental health law. Mercedes Perez was called to the Ontario bar in 2003, co-instructs a Law and Psychiatry course at Osgoode Hall Law School, and has served as amicus curiae in Charter cases, including a 2023 Ontario Superior Court ruling on encampment evictions in the Waterloo Region. Alexander Procope, called to the bar in 2007, focuses on capacity, guardianship, and estate disputes and received the Ontario Bar Association's Hoffstein Book Prize in 2022 for contributions to wills, trusts, and estates law. The firm describes its retainer terms as fair and transparent, without hidden fees.

In the community

  • In October 2025, the firm marked its anniversary by donating to local food banks.
  • In 2018, the firm publicly endorsed an open letter from the Law and Mental Disorder Association urging a major Toronto donor to direct funding toward community mental health needs, including housing, psychiatric care, and services in underserved and northern regions.
  • Law clerk Michelle Alijohn volunteers with Innocence Canada, an organization that works to prevent and correct wrongful convictions.

Good to know

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This firm’s lawyers at a glance

Called to the bar
2007 · median 19 years in practice 1 of 3 lawyers
Law schools
Osgoode Hall Law School 1 of 3 lawyers

Where to find them

55 University Avenue, Suite 1100, Toronto, ON M5J 2H7 · 416-320-1914

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This listing was generated by AI from public sources in August 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on the firm’s own website. Verify licence status in the Law Society of Ontario directory ↗

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