Margaret Black Professional Corporation 

About Margaret Black Professional Corporation

Our Team

Margaret J. Black, B.A., J.D.


Founding Lawyer - Retired

Prior to being called to the Ontario Bar, Margaret earned a B.A. in Political Science from McMaster University and JD from Osgoode Hall Law School. She is a member of the Law Society of Upper Canada and the Canadian Bar Association.

Margaret is a former Mayor of King Township and Councillor for the Regional Municipality of York. She was elected to these positions in 1994, and was re-elected in 1997, 2000, 2003 and 2006. Ms. Black is a recipient of the Queen’s Jubilee Award and the Rural Female Politician Award. She has served as a Director of Southlake Regional Health Centre in Newmarket, as a member of the Greater Toronto Agricultural Action Board, as the former Chair of the York Region Police Services Board, and as a Director of the Municipal Property Assessment Corporation.

Born raised on the family farm in King Township, Margaret attended Dr. G.W. Williams Secondary School in Aurora.  Margaret continues to serve her loyal clientele.  

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Vanessa Tynes-Jass

Managing Lawyer

Vanessa Jass, called to the Bar in both Nova Scotia and Ontario, is a mentor, coach, author, and international and award winning public speaker. With 17 years of experience practicing family law, and operating her own business, Vanessa brings her knowledge, skills, and experience to the table. Ms. Jass, has encountered countless complex family litigation files. Her litigation experience in Family court and the Court of Appeal is truly beneficial to those clients who appreciate excellent advocacy on their behalf. 

Being a true entrepreneur, her business acumen is very helpful with the family law practice for entrepreneurs and former spouses of business owners. High net worth clients can be assured that their legal interests will be completely protected and understood before, during, and after a marriage or long term common law relationship. Vanessa remains committed to finding solutions for her clientele. 

When it comes to residential real estate transactions, you can be assured that your deal will be taken care of promptly and efficiently.  Call us today for a quote for our services. “You only need a great real estate lawyer when something goes wrong”.

Outside of the office, Vanessa is heavily involved in her not for profit organization.

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Danielle Trombly

Associate Lawyer

Danielle completed her undergraduate degree at York University in 2009. After completing a certificate in advertising and media sales at Humber, Danielle realized she was unhappy with her career path. Family reminded her that she had been telling people she was going to be a lawyer since she was a child. 

Danielle took the leap and studied at Bond University in sunny Gold Coast, Australia. Since being called to the bar in 2014, Danielle has made it her goal to find the grey areas in situations that seemed black and white. Ultimately she wants to help people in their time of need, which is what drew her to practice Criminal, Family, and Estates law.

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See below for some of Danielle's criminal law outcomes:



Criminal Negligence Causing Death

6 months house arrest

Assault causing bodily harm




Domestic Assault


Drug charges

Charges withdrawn by Crown

2 x Domestic Assault (2021)


Benjamin West Berry

Associate Lawyer

Benjamin Berry joined Margaret Black Professional Corporation in 2021. Prior to joining the firm Benjamin was the sole solicitor at a firm in his hometown of Brantford, Ontario, where he managed all real estate, wills and estates, and corporate files.

Ben received his J.D. from Queen’s University. In his undergraduate years, he studied journalism and political science, and contributed articles to his local newspaper during summers.

In his spare time, Ben enjoys watching movies, playing board games, skiing, and creative writing.

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